Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

53 files changed, 35493 insertions, 0 deletions

diff --git a/starmath/source/AccessibleSmElement.cxx b/starmath/source/AccessibleSmElement.cxx
new file mode 100644
index 000000000..9903ce75d
--- /dev/null
+++ b/starmath/source/AccessibleSmElement.cxx
@@ -0,0 +1,286 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <AccessibleSmElement.hxx>
+#include <ElementsDockingWindow.hxx>
+
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/typeprovider.hxx>
+#include <toolkit/helper/convert.hxx>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/svapp.hxx>
+
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star;
+using OContextEntryGuard = ::comphelper::OContextEntryGuard;
+using OExternalLockGuard = ::comphelper::OExternalLockGuard;
+
+AccessibleSmElement::AccessibleSmElement(SmElementsControl* pSmElementsControl, sal_uInt16 nItemId,
+                                         sal_Int32 nIndexInParent)
+    : m_pSmElementsControl(pSmElementsControl)
+    , m_nIndexInParent(nIndexInParent)
+    , m_nItemId(nItemId)
+    , m_bHasFocus(false)
+{
+    assert(m_pSmElementsControl);
+    m_nRole = m_pSmElementsControl->itemIsSeparator(m_nItemId) ? AccessibleRole::SEPARATOR
+                                                               : AccessibleRole::PUSH_BUTTON;
+}
+
+AccessibleSmElement::~AccessibleSmElement() {}
+
+void AccessibleSmElement::SetFocus(bool bFocus)
+{
+    if (m_bHasFocus == bFocus)
+        return;
+
+    uno::Any aOldValue;
+    uno::Any aNewValue;
+    if (m_bHasFocus)
+        aOldValue <<= AccessibleStateType::FOCUSED;
+    else
+        aNewValue <<= AccessibleStateType::FOCUSED;
+    m_bHasFocus = bFocus;
+    NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue);
+}
+
+awt::Rectangle AccessibleSmElement::implGetBounds()
+{
+    awt::Rectangle aRect;
+    if (m_pSmElementsControl)
+        aRect = AWTRectangle(m_pSmElementsControl->itemPosRect(m_nItemId));
+    return aRect;
+}
+
+// XInterface
+
+IMPLEMENT_FORWARD_REFCOUNT(AccessibleSmElement, comphelper::OAccessibleComponentHelper)
+
+uno::Any AccessibleSmElement::queryInterface(const uno::Type& _rType)
+{
+    if (_rType == cppu::UnoType<XAccessibleAction>::get()
+        && (!m_pSmElementsControl || m_pSmElementsControl->itemIsSeparator(m_nItemId)))
+        return uno::Any();
+
+    uno::Any aReturn = comphelper::OAccessibleComponentHelper::queryInterface(_rType);
+    if (!aReturn.hasValue())
+        aReturn = AccessibleSmElement_BASE::queryInterface(_rType);
+    return aReturn;
+}
+
+// XTypeProvider
+
+IMPLEMENT_FORWARD_XTYPEPROVIDER2(AccessibleSmElement, comphelper::OAccessibleComponentHelper,
+                                 AccessibleSmElement_BASE)
+
+// XComponent
+
+void AccessibleSmElement::disposing()
+{
+    comphelper::OAccessibleComponentHelper::disposing();
+    m_pSmElementsControl = nullptr;
+}
+
+// XServiceInfo
+
+OUString AccessibleSmElement::getImplementationName()
+{
+    return "com.sun.star.comp.toolkit.AccessibleSmElement";
+}
+
+sal_Bool AccessibleSmElement::supportsService(const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence<OUString> AccessibleSmElement::getSupportedServiceNames()
+{
+    return { "com.sun.star.accessibility.AccessibleContext",
+             "com.sun.star.accessibility.AccessibleComponent",
+             "com.sun.star.accessibility.AccessibleSmElement" };
+}
+
+// XAccessible
+
+uno::Reference<XAccessibleContext> AccessibleSmElement::getAccessibleContext() { return this; }
+
+// XAccessibleContext
+
+sal_Int32 AccessibleSmElement::getAccessibleChildCount() { return 0; }
+
+uno::Reference<accessibility::XAccessible> AccessibleSmElement::getAccessibleChild(sal_Int32)
+{
+    return uno::Reference<XAccessible>();
+}
+
+uno::Reference<XAccessible> AccessibleSmElement::getAccessibleParent()
+{
+    OContextEntryGuard aGuard(this);
+    uno::Reference<XAccessible> xParent;
+    if (m_pSmElementsControl)
+        xParent.set(m_pSmElementsControl->GetAccessible().get());
+    return xParent;
+}
+
+sal_Int32 AccessibleSmElement::getAccessibleIndexInParent()
+{
+    OContextEntryGuard aGuard(this);
+    return m_nIndexInParent;
+}
+
+sal_Int16 AccessibleSmElement::getAccessibleRole()
+{
+    OContextEntryGuard aGuard(this);
+    return m_nRole;
+}
+
+OUString AccessibleSmElement::getAccessibleDescription() { return getAccessibleName(); }
+
+OUString AccessibleSmElement::getAccessibleName()
+{
+    OExternalLockGuard aGuard(this);
+    OUString aName;
+    if (m_pSmElementsControl)
+        aName = m_pSmElementsControl->itemName(m_nItemId);
+    return aName;
+}
+
+uno::Reference<XAccessibleRelationSet> AccessibleSmElement::getAccessibleRelationSet()
+{
+    OContextEntryGuard aGuard(this);
+
+    utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
+    uno::Reference<XAccessibleRelationSet> xSet = pRelationSetHelper;
+    return xSet;
+}
+
+uno::Reference<XAccessibleStateSet> AccessibleSmElement::getAccessibleStateSet()
+{
+    OExternalLockGuard aGuard(this);
+
+    utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper;
+    uno::Reference<XAccessibleStateSet> xStateSet = pStateSetHelper;
+
+    if (m_pSmElementsControl && !rBHelper.bDisposed && !rBHelper.bInDispose)
+    {
+        if (m_pSmElementsControl->itemIsVisible(m_nItemId))
+            pStateSetHelper->AddState(AccessibleStateType::VISIBLE);
+        if (!m_pSmElementsControl->itemIsSeparator(m_nItemId))
+        {
+            if (m_pSmElementsControl->IsEnabled())
+            {
+                pStateSetHelper->AddState(AccessibleStateType::ENABLED);
+                pStateSetHelper->AddState(AccessibleStateType::SENSITIVE);
+            }
+            pStateSetHelper->AddState(AccessibleStateType::FOCUSABLE);
+            if (m_bHasFocus)
+                pStateSetHelper->AddState(AccessibleStateType::FOCUSED);
+        }
+    }
+    else
+        pStateSetHelper->AddState(AccessibleStateType::DEFUNC);
+
+    return xStateSet;
+}
+
+// XAccessibleComponent
+
+uno::Reference<XAccessible> AccessibleSmElement::getAccessibleAtPoint(const awt::Point&)
+{
+    return uno::Reference<XAccessible>();
+}
+
+void AccessibleSmElement::grabFocus()
+{
+    uno::Reference<XAccessible> xParent(getAccessibleParent());
+
+    if (xParent.is())
+    {
+        uno::Reference<XAccessibleSelection> rxAccessibleSelection(xParent->getAccessibleContext(),
+                                                                   uno::UNO_QUERY);
+        if (rxAccessibleSelection.is())
+            rxAccessibleSelection->selectAccessibleChild(getAccessibleIndexInParent());
+    }
+}
+
+sal_Int32 AccessibleSmElement::getForeground()
+{
+    OExternalLockGuard aGuard(this);
+
+    Color nColor = SmElementsControl::GetTextColor();
+    return sal_Int32(nColor);
+}
+
+sal_Int32 AccessibleSmElement::getBackground()
+{
+    OExternalLockGuard aGuard(this);
+
+    Color nColor = SmElementsControl::GetControlBackground();
+    return sal_Int32(nColor);
+}
+
+// XAccessibleAction
+
+sal_Int32 AccessibleSmElement::getAccessibleActionCount()
+{
+    // only one action -> "Press"
+    return m_pSmElementsControl->itemIsSeparator(m_nItemId) ? 0 : 1;
+}
+
+void AccessibleSmElement::testAction(sal_Int32 nIndex) const
+{
+    if (!m_pSmElementsControl || m_pSmElementsControl->itemIsSeparator(m_nItemId) || (nIndex != 0))
+        throw lang::IndexOutOfBoundsException();
+}
+
+sal_Bool AccessibleSmElement::doAccessibleAction(sal_Int32 nIndex)
+{
+    OExternalLockGuard aGuard(this);
+
+    testAction(nIndex);
+
+    return m_pSmElementsControl->itemTrigger(m_nItemId);
+}
+
+OUString AccessibleSmElement::getAccessibleActionDescription(sal_Int32 nIndex)
+{
+    OExternalLockGuard aGuard(this);
+
+    testAction(nIndex);
+
+    return "press";
+}
+
+uno::Reference<XAccessibleKeyBinding>
+AccessibleSmElement::getAccessibleActionKeyBinding(sal_Int32 nIndex)
+{
+    OContextEntryGuard aGuard(this);
+
+    testAction(nIndex);
+
+    return uno::Reference<XAccessibleKeyBinding>();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/AccessibleSmElementsControl.cxx b/starmath/source/AccessibleSmElementsControl.cxx
new file mode 100644
index 000000000..29701ce81
--- /dev/null
+++ b/starmath/source/AccessibleSmElementsControl.cxx
@@ -0,0 +1,375 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <AccessibleSmElementsControl.hxx>
+#include <AccessibleSmElement.hxx>
+#include <ElementsDockingWindow.hxx>
+#include <smmod.hxx>
+
+#include <comphelper/accessiblewrapper.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/types.hxx>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/typeprovider.hxx>
+#include <o3tl/safeint.hxx>
+#include <toolkit/helper/convert.hxx>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/vclevent.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using OContextEntryGuard = ::comphelper::OContextEntryGuard;
+using OExternalLockGuard = ::comphelper::OExternalLockGuard;
+
+// AccessibleSmElementsControl
+
+AccessibleSmElementsControl::AccessibleSmElementsControl(SmElementsControl& rControl)
+    : m_pControl(&rControl)
+{
+}
+
+AccessibleSmElementsControl::~AccessibleSmElementsControl() {}
+
+void AccessibleSmElementsControl::UpdateFocus(sal_uInt16 nPos)
+{
+    const bool bSetFocus = (nPos == SAL_MAX_UINT16);
+
+    // submit events only if the widget has the focus to avoid sending events due to mouse move
+    if (!m_pControl || (bSetFocus && !m_pControl->HasFocus()))
+        return;
+
+    if (bSetFocus)
+        nPos = m_pControl->itemHighlighted() - m_pControl->itemOffset();
+
+    if (nPos < m_aAccessibleChildren.size())
+    {
+        const auto& rxChild = m_aAccessibleChildren[nPos];
+        if (rxChild.is())
+            rxChild->SetFocus(bSetFocus);
+    }
+}
+
+void AccessibleSmElementsControl::ReleaseAllItems()
+{
+    if (m_aAccessibleChildren.empty())
+        return;
+
+    m_aAccessibleChildren.clear();
+
+    // The original toolbox accessibility code uses individual NAME_CHANGED
+    // events in a loop. We can't do this, because on each remove event the
+    // list of known children is rebuild. But since we rely on the child
+    // count of the SmElementsControl, we'll always have no or all items.
+    // In the latter case this would automatically recreate all items!
+    assert(m_pControl && m_pControl->itemCount() == 0);
+    NotifyAccessibleEvent(AccessibleEventId::INVALIDATE_ALL_CHILDREN, uno::Any(), uno::Any());
+}
+
+void AccessibleSmElementsControl::AddAllItems()
+{
+    assert(m_pControl);
+    if (!m_pControl)
+        return;
+
+    uno::Any aNewName(getAccessibleName());
+    NotifyAccessibleEvent(AccessibleEventId::NAME_CHANGED, uno::Any(), aNewName);
+
+    // register the new items
+    sal_uInt16 nCount = getAccessibleChildCount();
+    for (sal_uInt16 i = 0; i < nCount; ++i)
+    {
+        uno::Any aNewValue;
+        aNewValue <<= getAccessibleChild(static_cast<sal_Int32>(i));
+        NotifyAccessibleEvent(AccessibleEventId::CHILD, uno::Any(), aNewValue);
+    }
+}
+
+IMPLEMENT_FORWARD_XINTERFACE2(AccessibleSmElementsControl, comphelper::OAccessibleComponentHelper,
+                              AccessibleSmElementsControl_BASE)
+
+IMPLEMENT_FORWARD_XTYPEPROVIDER2(AccessibleSmElementsControl,
+                                 comphelper::OAccessibleComponentHelper,
+                                 AccessibleSmElementsControl_BASE)
+
+// XAccessible
+uno::Reference<XAccessibleContext> AccessibleSmElementsControl::getAccessibleContext()
+{
+    return this;
+}
+
+// XComponent
+void AccessibleSmElementsControl::disposing()
+{
+    comphelper::OAccessibleComponentHelper::disposing();
+    m_aAccessibleChildren.clear();
+}
+
+void AccessibleSmElementsControl::grabFocus()
+{
+    SolarMutexGuard aGuard;
+    if (!m_pControl)
+        throw uno::RuntimeException();
+
+    m_pControl->GrabFocus();
+}
+
+sal_Int32 AccessibleSmElementsControl::getForeground()
+{
+    SolarMutexGuard aGuard;
+
+    return static_cast<sal_Int32>(SmElementsControl::GetTextColor());
+}
+
+sal_Int32 AccessibleSmElementsControl::getBackground()
+{
+    SolarMutexGuard aGuard;
+
+    Color nCol = SmElementsControl::GetControlBackground();
+    return static_cast<sal_Int32>(nCol);
+}
+
+// XServiceInfo
+OUString AccessibleSmElementsControl::getImplementationName()
+{
+    return "com.sun.star.comp.toolkit.AccessibleSmElementsControl";
+}
+
+sal_Bool AccessibleSmElementsControl::supportsService(const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence<OUString> AccessibleSmElementsControl::getSupportedServiceNames()
+{
+    return { "com.sun.star.accessibility.AccessibleContext",
+             "com.sun.star.accessibility.AccessibleComponent",
+             "com.sun.star.accessibility.AccessibleSelection",
+             "com.sun.star.accessibility.AccessibleSmElementsControl" };
+}
+
+// XAccessibleContext
+sal_Int32 AccessibleSmElementsControl::getAccessibleChildCount()
+{
+    comphelper::OExternalLockGuard aGuard(this);
+    sal_Int32 nCount = 0;
+    if (m_pControl)
+    {
+        nCount = m_pControl->itemCount();
+        if (m_aAccessibleChildren.size() != sal_uInt16(nCount))
+            m_aAccessibleChildren.resize(nCount);
+    }
+    return nCount;
+}
+
+uno::Reference<XAccessible> AccessibleSmElementsControl::getAccessibleChild(sal_Int32 c)
+{
+    comphelper::OExternalLockGuard aGuard(this);
+
+    if (c < 0 || c >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    rtl::Reference<AccessibleSmElement> xChild = m_aAccessibleChildren[c];
+    const sal_uInt16 nItemId = m_pControl->itemOffset() + c;
+    if (xChild.is() && xChild->itemId() != nItemId)
+        xChild.clear();
+    if (!xChild.is())
+    {
+        sal_uInt16 nHighlightItemId = m_pControl->itemHighlighted();
+        AccessibleSmElement* pChild = new AccessibleSmElement(m_pControl, nItemId, c);
+        if (pChild->itemId() == nHighlightItemId)
+            pChild->SetFocus(true);
+        m_aAccessibleChildren[c] = pChild;
+        xChild = pChild;
+    }
+    return xChild.get();
+}
+
+uno::Reference<XAccessible> AccessibleSmElementsControl::getAccessibleParent()
+{
+    SolarMutexGuard aGuard;
+    if (!m_pControl)
+        throw uno::RuntimeException();
+
+    return m_pControl->GetDrawingArea()->get_accessible_parent();
+}
+
+uno::Reference<XAccessible>
+AccessibleSmElementsControl::getAccessibleAtPoint(const awt::Point& rPoint)
+{
+    comphelper::OExternalLockGuard aGuard(this);
+
+    uno::Reference<XAccessible> xAccessible;
+    if (m_pControl)
+    {
+        sal_uInt16 nPos = m_pControl->itemAtPos(VCLPoint(rPoint));
+        nPos -= m_pControl->itemOffset();
+        if (nPos <= m_aAccessibleChildren.size())
+            xAccessible = getAccessibleChild(nPos);
+    }
+    return xAccessible;
+}
+
+sal_Int16 AccessibleSmElementsControl::getAccessibleRole() { return AccessibleRole::SCROLL_PANE; }
+
+OUString AccessibleSmElementsControl::getAccessibleDescription() { return OUString(); }
+
+OUString AccessibleSmElementsControl::getAccessibleName()
+{
+    SolarMutexGuard aGuard;
+    OUString aName;
+    if (m_pControl)
+        aName = SmResId(m_pControl->elementSetId().getStr());
+    return aName;
+}
+
+// XAccessibleSelection
+void AccessibleSmElementsControl::selectAccessibleChild(sal_Int32 nChildIndex)
+{
+    OExternalLockGuard aGuard(this);
+
+    if ((!m_pControl) || nChildIndex < 0
+        || o3tl::make_unsigned(nChildIndex) >= m_aAccessibleChildren.size())
+        throw lang::IndexOutOfBoundsException();
+
+    m_pControl->setItemHighlighted(nChildIndex);
+}
+
+sal_Bool AccessibleSmElementsControl::isAccessibleChildSelected(sal_Int32 nChildIndex)
+{
+    OExternalLockGuard aGuard(this);
+    if ((!m_pControl) || nChildIndex < 0
+        || o3tl::make_unsigned(nChildIndex) >= m_aAccessibleChildren.size())
+        throw lang::IndexOutOfBoundsException();
+
+    return (m_pControl->itemHighlighted() == nChildIndex);
+}
+
+void AccessibleSmElementsControl::clearAccessibleSelection()
+{
+    OExternalLockGuard aGuard(this);
+    if (m_pControl)
+        m_pControl->setItemHighlighted(SAL_MAX_UINT16);
+}
+
+void AccessibleSmElementsControl::selectAllAccessibleChildren()
+{
+    // intentionally empty
+}
+
+sal_Int32 AccessibleSmElementsControl::getSelectedAccessibleChildCount()
+{
+    OExternalLockGuard aGuard(this);
+
+    sal_Int32 nRet = 0;
+    if (m_pControl
+        && (m_pControl->itemHighlighted() - m_pControl->itemOffset()) < getAccessibleChildCount())
+        nRet = 1;
+    return nRet;
+}
+
+uno::Reference<XAccessible>
+AccessibleSmElementsControl::getSelectedAccessibleChild(sal_Int32 nSelectedChildIndex)
+{
+    OExternalLockGuard aGuard(this);
+    if (nSelectedChildIndex != 0 || !m_pControl)
+        throw lang::IndexOutOfBoundsException();
+    return getAccessibleChild(m_pControl->itemHighlighted() - m_pControl->itemOffset());
+}
+
+void AccessibleSmElementsControl::deselectAccessibleChild(sal_Int32 nChildIndex)
+{
+    OExternalLockGuard aGuard(this);
+    if (nChildIndex != 0 || nChildIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+    clearAccessibleSelection(); // there can be just one selected child
+}
+
+void AccessibleSmElementsControl::TestControl()
+{
+    if (!m_pControl)
+        throw uno::RuntimeException();
+}
+
+awt::Rectangle AccessibleSmElementsControl::implGetBounds()
+{
+    SolarMutexGuard aGuard;
+    TestControl();
+
+    awt::Rectangle aRet;
+
+    const Point aOutPos;
+    Size aOutSize(m_pControl->GetOutputSizePixel());
+
+    aRet.X = aOutPos.X();
+    aRet.Y = aOutPos.Y();
+    aRet.Width = aOutSize.Width();
+    aRet.Height = aOutSize.Height();
+
+    return aRet;
+}
+
+sal_Bool AccessibleSmElementsControl::containsPoint(const awt::Point& aPoint)
+{
+    SolarMutexGuard aGuard;
+    TestControl();
+    Size aSz(m_pControl->GetOutputSizePixel());
+    return aPoint.X >= 0 && aPoint.Y >= 0 && aPoint.X < aSz.Width() && aPoint.Y < aSz.Height();
+}
+
+uno::Reference<XAccessibleRelationSet> AccessibleSmElementsControl::getAccessibleRelationSet()
+{
+    uno::Reference<XAccessibleRelationSet> xRelSet = new utl::AccessibleRelationSetHelper();
+    return xRelSet; // empty relation set
+}
+
+uno::Reference<XAccessibleStateSet> AccessibleSmElementsControl::getAccessibleStateSet()
+{
+    SolarMutexGuard aGuard;
+    ::utl::AccessibleStateSetHelper* pStateSet = new ::utl::AccessibleStateSetHelper;
+
+    uno::Reference<XAccessibleStateSet> xStateSet(pStateSet);
+
+    if (!m_pControl)
+        pStateSet->AddState(AccessibleStateType::DEFUNC);
+    else
+    {
+        pStateSet->AddState(AccessibleStateType::ENABLED);
+        pStateSet->AddState(AccessibleStateType::FOCUSABLE);
+        if (m_pControl->HasFocus())
+            pStateSet->AddState(AccessibleStateType::FOCUSED);
+        if (m_pControl->IsActive())
+            pStateSet->AddState(AccessibleStateType::ACTIVE);
+        if (m_pControl->IsVisible())
+            pStateSet->AddState(AccessibleStateType::SHOWING);
+        if (m_pControl->IsReallyVisible())
+            pStateSet->AddState(AccessibleStateType::VISIBLE);
+        if (COL_TRANSPARENT != SmElementsControl::GetControlBackground())
+            pStateSet->AddState(AccessibleStateType::OPAQUE);
+    }
+
+    return xStateSet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/ElementsDockingWindow.cxx b/starmath/source/ElementsDockingWindow.cxx
new file mode 100644
index 000000000..c21933fe1
--- /dev/null
+++ b/starmath/source/ElementsDockingWindow.cxx
@@ -0,0 +1,1230 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <memory>
+#include <ElementsDockingWindow.hxx>
+
+#include <starmath.hrc>
+#include <strings.hrc>
+#include <smmod.hxx>
+#include <view.hxx>
+#include <visitors.hxx>
+#include <document.hxx>
+#include <node.hxx>
+#include "uiobject.hxx"
+#include <strings.hxx>
+
+#include <sfx2/dispatch.hxx>
+#include <sfx2/sfxmodelfactory.hxx>
+#include <svl/stritem.hxx>
+#include <svtools/colorcfg.hxx>
+#include <vcl/event.hxx>
+#include <vcl/help.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/uitest/eventdescription.hxx>
+#include <vcl/uitest/logger.hxx>
+
+SmElement::SmElement(std::unique_ptr<SmNode>&& pNode, const OUString& aText, const OUString& aHelpText) :
+    mpNode(std::move(pNode)),
+    maText(aText),
+    maHelpText(aHelpText)
+{}
+
+SmElement::~SmElement()
+{}
+
+const std::unique_ptr<SmNode>& SmElement::getNode() const { return mpNode; }
+
+SmElementSeparator::SmElementSeparator() :
+    SmElement(std::unique_ptr<SmNode>(), OUString(), OUString())
+{}
+
+const SmElementDescr SmElementsControl::m_aUnaryBinaryOperatorsList[] =
+{
+    {RID_PLUSX, RID_PLUSX_HELP}, {RID_MINUSX, RID_MINUSX_HELP},
+    {RID_PLUSMINUSX, RID_PLUSMINUSX_HELP}, {RID_MINUSPLUSX, RID_MINUSPLUSX_HELP},
+    {nullptr, nullptr},
+    {RID_XPLUSY, RID_XPLUSY_HELP}, {RID_XMINUSY, RID_XMINUSY_HELP},
+    {RID_XCDOTY, RID_XCDOTY_HELP}, {RID_XTIMESY, RID_XTIMESY_HELP},
+    {RID_XSYMTIMESY, RID_XSYMTIMESY_HELP}, {RID_XOVERY, RID_XOVERY_HELP},
+    {RID_XDIVY, RID_XDIVY_HELP}, {RID_XSYMDIVIDEY, RID_XSYMDIVIDEY_HELP},
+    {RID_XOPLUSY, RID_XOPLUSY_HELP}, {RID_XOMINUSY, RID_XOMINUSY_HELP},
+    {RID_XODOTY, RID_XODOTY_HELP}, {RID_XOTIMESY, RID_XOTIMESY_HELP},
+    {RID_XODIVIDEY, RID_XODIVIDEY_HELP}, {RID_XCIRCY, RID_XCIRCY_HELP},
+    {RID_XWIDESLASHY, RID_XWIDESLASHY_HELP}, {RID_XWIDEBSLASHY, RID_XWIDEBSLASHY_HELP},
+    {nullptr, nullptr},
+    {RID_NEGX, RID_NEGX_HELP}, {RID_XANDY, RID_XANDY_HELP}, {RID_XORY, RID_XORY_HELP},
+};
+
+const SmElementDescr SmElementsControl::m_aRelationsList[] =
+{
+    {RID_XEQY, RID_XEQY_HELP}, {RID_XNEQY, RID_XNEQY_HELP}, {RID_XLTY, RID_XLTY_HELP},
+    {RID_XLEY, RID_XLEY_HELP}, {RID_XLESLANTY, RID_XLESLANTY_HELP}, {RID_XGTY, RID_XGTY_HELP},
+    {RID_XGEY, RID_XGEY_HELP}, {RID_XGESLANTY, RID_XGESLANTY_HELP},
+    {RID_XLLY, RID_XLLY_HELP}, {RID_XGGY, RID_XGGY_HELP},
+    {nullptr, nullptr},
+    {RID_XAPPROXY, RID_XAPPROXY_HELP}, {RID_XSIMY, RID_XSIMY_HELP}, {RID_XSIMEQY, RID_XSIMEQY_HELP},
+    {RID_XEQUIVY, RID_XEQUIVY_HELP}, {RID_XPROPY, RID_XPROPY_HELP}, {RID_XPARALLELY, RID_XPARALLELY_HELP},
+    {RID_XORTHOY, RID_XORTHOY_HELP}, {RID_XDIVIDESY, RID_XDIVIDESY_HELP}, {RID_XNDIVIDESY, RID_XNDIVIDESY_HELP},
+    {RID_XTOWARDY, RID_XTOWARDY_HELP}, {RID_XTRANSLY, RID_XTRANSLY_HELP}, {RID_XTRANSRY, RID_XTRANSRY_HELP},
+    {RID_XDEFY, RID_XDEFY_HELP},
+    {nullptr, nullptr},
+    {RID_DLARROW, RID_DLARROW_HELP}, {RID_DLRARROW, RID_DLRARROW_HELP}, {RID_DRARROW, RID_DRARROW_HELP},
+    {nullptr, nullptr},
+    {RID_XPRECEDESY, RID_XPRECEDESY_HELP}, {RID_XSUCCEEDSY, RID_XSUCCEEDSY_HELP},
+    {RID_XPRECEDESEQUALY, RID_XPRECEDESEQUALY_HELP}, {RID_XSUCCEEDSEQUALY, RID_XSUCCEEDSEQUALY_HELP},
+    {RID_XPRECEDESEQUIVY, RID_XPRECEDESEQUIVY_HELP}, {RID_XSUCCEEDSEQUIVY, RID_XSUCCEEDSEQUIVY_HELP},
+    {RID_XNOTPRECEDESY, RID_XNOTPRECEDESY_HELP}, {RID_XNOTSUCCEEDSY, RID_XNOTSUCCEEDSY_HELP},
+};
+
+const SmElementDescr SmElementsControl::m_aSetOperationsList[] =
+{
+    {RID_XINY, RID_XINY_HELP}, {RID_XNOTINY, RID_XNOTINY_HELP}, {RID_XOWNSY, RID_XOWNSY_HELP},
+    {nullptr, nullptr},
+    {RID_XINTERSECTIONY, RID_XINTERSECTIONY_HELP}, {RID_XUNIONY, RID_XUNIONY_HELP},
+    {RID_XSETMINUSY, RID_XSETMINUSY_HELP}, {RID_XSLASHY, RID_XSLASHY_HELP},
+    {RID_XSUBSETY, RID_XSUBSETY_HELP}, {RID_XSUBSETEQY, RID_XSUBSETEQY_HELP},
+    {RID_XSUPSETY, RID_XSUPSETY_HELP}, {RID_XSUPSETEQY, RID_XSUPSETEQY_HELP},
+    {RID_XNSUBSETY, RID_XNSUBSETY_HELP}, {RID_XNSUBSETEQY, RID_XNSUBSETEQY_HELP},
+    {RID_XNSUPSETY, RID_XNSUPSETY_HELP}, {RID_XNSUPSETEQY, RID_XNSUPSETEQY_HELP},
+    {nullptr, nullptr},
+    {RID_EMPTYSET, RID_EMPTYSET_HELP}, {RID_ALEPH, RID_ALEPH_HELP}, {RID_SETN, RID_SETN_HELP},
+    {RID_SETZ, RID_SETZ_HELP}, {RID_SETQ, RID_SETQ_HELP}, {RID_SETR, RID_SETR_HELP}, {RID_SETC, RID_SETC_HELP}
+};
+
+const SmElementDescr SmElementsControl::m_aFunctionsList[] =
+{
+    {RID_ABSX, RID_ABSX_HELP}, {RID_FACTX, RID_FACTX_HELP}, {RID_SQRTX, RID_SQRTX_HELP},
+    {RID_NROOTXY, RID_NROOTXY_HELP}, {RID_RSUPX, RID_RSUPX_HELP}, {RID_EX, RID_EX_HELP},
+    {RID_LNX, RID_LNX_HELP}, {RID_EXPX, RID_EXPX_HELP}, {RID_LOGX, RID_LOGX_HELP},
+    {nullptr, nullptr},
+    {RID_SINX, RID_SINX_HELP}, {RID_COSX, RID_COSX_HELP}, {RID_TANX, RID_TANX_HELP}, {RID_COTX, RID_COTX_HELP},
+    {RID_SINHX, RID_SINHX_HELP}, {RID_COSHX, RID_COSHX_HELP}, {RID_TANHX, RID_TANHX_HELP},
+    {RID_COTHX, RID_COTHX_HELP},
+    {nullptr, nullptr},
+    {RID_ARCSINX, RID_ARCSINX_HELP}, {RID_ARCCOSX, RID_ARCCOSX_HELP}, {RID_ARCTANX, RID_ARCTANX_HELP},
+    {RID_ARCCOTX, RID_ARCCOTX_HELP}, {RID_ARSINHX, RID_ARSINHX_HELP}, {RID_ARCOSHX, RID_ARCOSHX_HELP},
+    {RID_ARTANHX, RID_ARTANHX_HELP}, {RID_ARCOTHX, RID_ARCOTHX_HELP}
+};
+
+const SmElementDescr SmElementsControl::m_aOperatorsList[] =
+{
+    {RID_LIMX, RID_LIMX_HELP}, {RID_LIM_FROMX, RID_LIM_FROMX_HELP},
+    {RID_LIM_TOX, RID_LIM_TOX_HELP}, {RID_LIM_FROMTOX, RID_LIM_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_LIMINFX, RID_LIMINFX_HELP}, {RID_LIMINF_FROMX, RID_LIMINF_FROMX_HELP},
+    {RID_LIMINF_TOX, RID_LIMINF_TOX_HELP}, {RID_LIMINF_FROMTOX, RID_LIMINF_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_LIMSUPX, RID_LIMSUPX_HELP}, {RID_LIMSUP_FROMX, RID_LIMSUP_FROMX_HELP},
+    {RID_LIMSUP_TOX, RID_LIMSUP_TOX_HELP}, {RID_LIMSUP_FROMTOX, RID_LIMSUP_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_SUMX, RID_SUMX_HELP}, {RID_SUM_FROMX, RID_SUM_FROMX_HELP},
+    {RID_SUM_TOX, RID_SUM_TOX_HELP}, {RID_SUM_FROMTOX, RID_SUM_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_PRODX, RID_PRODX_HELP}, {RID_PROD_FROMX, RID_PROD_FROMX_HELP},
+    {RID_PROD_TOX, RID_PROD_TOX_HELP}, {RID_PROD_FROMTOX, RID_PROD_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_COPRODX, RID_COPRODX_HELP}, {RID_COPROD_FROMX, RID_COPROD_FROMX_HELP},
+    {RID_COPROD_TOX, RID_COPROD_TOX_HELP}, {RID_COPROD_FROMTOX, RID_COPROD_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_INTX, RID_INTX_HELP}, {RID_INT_FROMX, RID_INT_FROMX_HELP},
+    {RID_INT_TOX, RID_INT_TOX_HELP}, {RID_INT_FROMTOX, RID_INT_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_IINTX, RID_IINTX_HELP}, {RID_IINT_FROMX, RID_IINT_FROMX_HELP},
+    {RID_IINT_TOX, RID_IINT_TOX_HELP}, {RID_IINT_FROMTOX, RID_IINT_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_IIINTX, RID_IIINTX_HELP}, {RID_IIINT_FROMX, RID_IIINT_FROMX_HELP},
+    {RID_IIINT_TOX, RID_IIINT_TOX_HELP}, {RID_IIINT_FROMTOX, RID_IIINT_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_LINTX, RID_LINTX_HELP}, {RID_LINT_FROMX, RID_LINT_FROMX_HELP},
+    {RID_LINT_TOX, RID_LINT_TOX_HELP}, {RID_LINT_FROMTOX, RID_LINT_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_LLINTX, RID_LLINTX_HELP}, {RID_LLINT_FROMX, RID_LLINT_FROMX_HELP},
+    {RID_LLINT_TOX, RID_LLINT_TOX_HELP}, {RID_LLINT_FROMTOX, RID_LLINT_FROMTOX_HELP},
+    {nullptr, nullptr},
+    {RID_LLLINTX, RID_LLLINTX_HELP}, {RID_LLLINT_FROMX, RID_LLLINT_FROMX_HELP},
+    {RID_LLLINT_TOX, RID_LLLINT_TOX_HELP}, {RID_LLLINT_FROMTOX, RID_LLLINT_FROMTOX_HELP},
+};
+
+const SmElementDescr SmElementsControl::m_aAttributesList[] =
+{
+    {RID_ACUTEX, RID_ACUTEX_HELP}, {RID_GRAVEX, RID_GRAVEX_HELP}, {RID_BREVEX, RID_BREVEX_HELP},
+    {RID_CIRCLEX, RID_CIRCLEX_HELP}, {RID_DOTX, RID_DOTX_HELP}, {RID_DDOTX, RID_DDOTX_HELP},
+    {RID_DDDOTX, RID_DDDOTX_HELP}, {RID_BARX, RID_BARX_HELP}, {RID_VECX, RID_VECX_HELP},
+    {RID_HARPOONX, RID_HARPOONX_HELP},
+    {RID_TILDEX, RID_TILDEX_HELP}, {RID_HATX, RID_HATX_HELP}, {RID_CHECKX, RID_CHECKX_HELP},
+    {nullptr, nullptr},
+    {RID_WIDEVECX, RID_WIDEVECX_HELP}, {RID_WIDEHARPOONX, RID_WIDEHARPOONX_HELP},
+    {RID_WIDETILDEX, RID_WIDETILDEX_HELP}, {RID_WIDEHATX, RID_WIDEHATX_HELP},
+    {RID_OVERLINEX, RID_OVERLINEX_HELP}, {RID_UNDERLINEX, RID_UNDERLINEX_HELP}, {RID_OVERSTRIKEX, RID_OVERSTRIKEX_HELP},
+    {nullptr, nullptr},
+    {RID_PHANTOMX, RID_PHANTOMX_HELP}, {RID_BOLDX, RID_BOLDX_HELP}, {RID_ITALX, RID_ITALX_HELP},
+    {RID_SIZEXY, RID_SIZEXY_HELP}, {RID_FONTXY, RID_FONTXY_HELP},
+    {nullptr, nullptr},
+    {RID_COLORX_BLACK, RID_COLORX_BLACK_HELP}, {RID_COLORX_BLUE, RID_COLORX_BLUE_HELP},
+    {RID_COLORX_GREEN, RID_COLORX_GREEN_HELP}, {RID_COLORX_RED, RID_COLORX_RED_HELP},
+    {RID_COLORX_CYAN, RID_COLORX_CYAN_HELP}, {RID_COLORX_MAGENTA, RID_COLORX_MAGENTA_HELP},
+    {RID_COLORX_YELLOW, RID_COLORX_YELLOW_HELP}, {RID_COLORX_GRAY, RID_COLORX_GRAY_HELP},
+    {RID_COLORX_LIME, RID_COLORX_LIME_HELP}, {RID_COLORX_MAROON, RID_COLORX_MAROON_HELP},
+    {RID_COLORX_NAVY, RID_COLORX_NAVY_HELP}, {RID_COLORX_OLIVE, RID_COLORX_OLIVE_HELP},
+    {RID_COLORX_PURPLE, RID_COLORX_PURPLE_HELP}, {RID_COLORX_SILVER, RID_COLORX_SILVER_HELP},
+    {RID_COLORX_TEAL, RID_COLORX_TEAL_HELP},{RID_COLORX_RGB, RID_COLORX_RGB_HELP}
+};
+
+const SmElementDescr SmElementsControl::m_aBracketsList[] =
+{
+    {RID_LRGROUPX, RID_LRGROUPX_HELP},
+    {nullptr, nullptr},
+    {RID_LRPARENTX, RID_LRPARENTX_HELP}, {RID_LRBRACKETX, RID_LRBRACKETX_HELP},
+    {RID_LRDBRACKETX, RID_LRDBRACKETX_HELP}, {RID_LRBRACEX, RID_LRBRACEX_HELP},
+    {RID_LRANGLEX, RID_LRANGLEX_HELP}, {RID_LMRANGLEXY, RID_LMRANGLEXY_HELP},
+    {RID_LRCEILX, RID_LRCEILX_HELP}, {RID_LRFLOORX, RID_LRFLOORX_HELP},
+    {RID_LRLINEX, RID_LRLINEX_HELP}, {RID_LRDLINEX, RID_LRDLINEX_HELP},
+    {nullptr, nullptr},
+    {RID_SLRPARENTX, RID_SLRPARENTX_HELP}, {RID_SLRBRACKETX, RID_SLRBRACKETX_HELP},
+    {RID_SLRDBRACKETX, RID_SLRDBRACKETX_HELP}, {RID_SLRBRACEX, RID_SLRBRACEX_HELP},
+    {RID_SLRANGLEX, RID_SLRANGLEX_HELP}, {RID_SLMRANGLEXY, RID_SLMRANGLEXY_HELP},
+    {RID_SLRCEILX, RID_SLRCEILX_HELP}, {RID_SLRFLOORX, RID_SLRFLOORX_HELP},
+    {RID_SLRLINEX, RID_SLRLINEX_HELP}, {RID_SLRDLINEX, RID_SLRDLINEX_HELP},
+    {RID_XEVALUATEDATY, RID_XEVALUATEDATY_HELP},
+    {nullptr, nullptr},
+    {RID_XOVERBRACEY, RID_XOVERBRACEY_HELP}, {RID_XUNDERBRACEY, RID_XUNDERBRACEY_HELP},
+};
+
+const SmElementDescr SmElementsControl::m_aFormatsList[] =
+{
+    {RID_RSUPX, RID_RSUPX_HELP}, {RID_RSUBX, RID_RSUBX_HELP}, {RID_LSUPX, RID_LSUPX_HELP},
+    {RID_LSUBX, RID_LSUBX_HELP}, {RID_CSUPX, RID_CSUPX_HELP}, {RID_CSUBX, RID_CSUBX_HELP},
+    {nullptr, nullptr},
+    {RID_NEWLINE, RID_NEWLINE_HELP}, {RID_SBLANK, RID_SBLANK_HELP}, {RID_BLANK, RID_BLANK_HELP},
+    {RID_NOSPACE, RID_NOSPACE_HELP},
+    {RID_ALIGNLX, RID_ALIGNLX_HELP}, {RID_ALIGNCX, RID_ALIGNCX_HELP}, {RID_ALIGNRX, RID_ALIGNRX_HELP},
+    {nullptr, nullptr},
+    {RID_BINOMXY, RID_BINOMXY_HELP}, {RID_STACK, RID_STACK_HELP},
+    {RID_MATRIX, RID_MATRIX_HELP},
+};
+
+const SmElementDescr SmElementsControl::m_aOthersList[] =
+{
+    {RID_INFINITY, RID_INFINITY_HELP}, {RID_PARTIAL, RID_PARTIAL_HELP}, {RID_NABLA, RID_NABLA_HELP},
+    {RID_EXISTS, RID_EXISTS_HELP}, {RID_NOTEXISTS, RID_NOTEXISTS_HELP}, {RID_FORALL, RID_FORALL_HELP},
+    {RID_HBAR, RID_HBAR_HELP}, {RID_LAMBDABAR, RID_LAMBDABAR_HELP}, {RID_RE, RID_RE_HELP},
+    {RID_IM, RID_IM_HELP}, {RID_WP, RID_WP_HELP}, {RID_LAPLACE, RID_LAPLACE_HELP},
+    {nullptr, nullptr},
+    {RID_LEFTARROW, RID_LEFTARROW_HELP}, {RID_RIGHTARROW, RID_RIGHTARROW_HELP}, {RID_UPARROW, RID_UPARROW_HELP},
+    {RID_DOWNARROW, RID_DOWNARROW_HELP},
+    {nullptr, nullptr},
+    {RID_DOTSLOW, RID_DOTSLOW_HELP}, {RID_DOTSAXIS, RID_DOTSAXIS_HELP}, {RID_DOTSVERT, RID_DOTSVERT_HELP},
+    {RID_DOTSUP, RID_DOTSUP_HELP}, {RID_DOTSDOWN, RID_DOTSDOWN_HELP}
+};
+
+const SmElementDescr SmElementsControl::m_aExamplesList[] =
+{
+    {"C=%pi cdot d = 2 cdot %pi cdot r", RID_EXAMPLE_CIRCUMFERENCE_HELP},
+    {"E=mc^2", RID_EXAMPLE_MASS_ENERGY_EQUIV_HELP},
+    {"a^2 + b^2 = c^2", RID_EXAMPLE_PYTHAGOREAN_THEO_HELP},
+    {"f ( x ) = sum from { { i = 0 } } to { infinity } { {f^{(i)}(0)} over {i!} x^i}", RID_EXAMPLE_A_SIMPLE_SERIES_HELP},
+    {"f ( x ) = {1} over {%sigma sqrt{2%pi} }func e^-{{(x-%mu)^2} over {2%sigma^2}}", RID_EXAMPLE_GAUSS_DISTRIBUTION_HELP},
+};
+
+#define AS_PAIR(a) a, SAL_N_ELEMENTS(a)
+const std::tuple<const char*, const SmElementDescr*, size_t> SmElementsControl::m_aCategories[] =
+{
+    {RID_CATEGORY_UNARY_BINARY_OPERATORS, AS_PAIR(m_aUnaryBinaryOperatorsList)},
+    {RID_CATEGORY_RELATIONS, AS_PAIR(m_aRelationsList)},
+    {RID_CATEGORY_SET_OPERATIONS, AS_PAIR(m_aSetOperationsList)},
+    {RID_CATEGORY_FUNCTIONS, AS_PAIR(m_aFunctionsList)},
+    {RID_CATEGORY_OPERATORS, AS_PAIR(m_aOperatorsList)},
+    {RID_CATEGORY_ATTRIBUTES, AS_PAIR(m_aAttributesList)},
+    {RID_CATEGORY_BRACKETS, AS_PAIR(m_aBracketsList)},
+    {RID_CATEGORY_FORMATS, AS_PAIR(m_aFormatsList)},
+    {RID_CATEGORY_OTHERS, AS_PAIR(m_aOthersList)},
+    {RID_CATEGORY_EXAMPLES, AS_PAIR(m_aExamplesList)},
+};
+
+const size_t SmElementsControl::m_aCategoriesSize = SAL_N_ELEMENTS(m_aCategories);
+
+SmElementsControl::SmElementsControl(std::unique_ptr<weld::ScrolledWindow> xScrolledWindow)
+    : mpDocShell(new SmDocShell(SfxModelFlags::EMBEDDED_OBJECT))
+    , m_nCurrentElement(SAL_MAX_UINT16)
+    , m_nCurrentRolloverElement(SAL_MAX_UINT16)
+    , m_nCurrentOffset(1) // Default offset of 1 due to the ScrollBar child
+    , mbVerticalMode(true)
+    , mxScroll(std::move(xScrolledWindow))
+    , m_bFirstPaintAfterLayout(false)
+{
+    mxScroll->set_user_managed_scrolling();
+    mxScroll->connect_hadjustment_changed( LINK(this, SmElementsControl, ScrollHdl) );
+    mxScroll->connect_vadjustment_changed( LINK(this, SmElementsControl, ScrollHdl) );
+}
+
+SmElementsControl::~SmElementsControl()
+{
+    mpDocShell->DoClose();
+}
+
+void SmElementsControl::setVerticalMode(bool bVerticalMode)
+{
+    if (mbVerticalMode == bVerticalMode)
+        return;
+    mbVerticalMode = bVerticalMode;
+    // turn off scrollbars, LayoutOrPaintContents will enable whichever one
+    // might be needed
+    mxScroll->set_vpolicy(VclPolicyType::NEVER);
+    mxScroll->set_hpolicy(VclPolicyType::NEVER);
+    LayoutOrPaintContents(GetDrawingArea()->get_ref_device(), false);
+    Invalidate();
+}
+
+SmElement* SmElementsControl::current() const
+{
+    sal_uInt16 nCur = (m_nCurrentRolloverElement != SAL_MAX_UINT16)
+            ? m_nCurrentRolloverElement
+            : (HasFocus() ? m_nCurrentElement : SAL_MAX_UINT16);
+    return (nCur < maElementList.size()) ? maElementList[nCur].get() : nullptr;
+}
+
+void SmElementsControl::setCurrentElement(sal_uInt16 nPos)
+{
+    if (m_nCurrentElement == nPos)
+        return;
+    if (nPos != SAL_MAX_UINT16 && nPos >= maElementList.size())
+        return;
+    if (m_xAccessible.is() && m_nCurrentElement != SAL_MAX_UINT16)
+        m_xAccessible->ReleaseFocus(m_nCurrentElement);
+    m_nCurrentElement = nPos;
+    if (m_xAccessible.is() && m_nCurrentElement != SAL_MAX_UINT16)
+        m_xAccessible->AcquireFocus();
+}
+
+Color SmElementsControl::GetTextColor()
+{
+    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+    return rStyleSettings.GetFieldTextColor();
+}
+
+Color SmElementsControl::GetControlBackground()
+{
+    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+    return rStyleSettings.GetFieldColor();
+}
+
+/**
+ * !bDraw => layout only
+ *
+ * Layouting is always done without a scrollbar and will show or hide it.
+ * The first paint (m_bFirstPaintAfterLayout) therefore needs to update a
+ * visible scrollbar, because the layouting was wrong.
+ **/
+void SmElementsControl::LayoutOrPaintContents(vcl::RenderContext& rContext, bool bDraw)
+{
+    rContext.Push();
+
+    rContext.SetMapMode( MapMode(MapUnit::Map100thMM) );
+    rContext.SetDrawMode( DrawModeFlags::Default );
+    rContext.SetLayoutMode( ComplexTextLayoutFlags::Default );
+    rContext.SetDigitLanguage( LANGUAGE_ENGLISH );
+    if (bDraw)
+    {
+        rContext.SetBackground(GetControlBackground());
+        rContext.SetTextColor(GetTextColor());
+        rContext.Erase();
+    }
+
+    const sal_Int32 nControlHeight = GetOutputSizePixel().Height();
+    const sal_Int32 nControlWidth = GetOutputSizePixel().Width();
+
+    sal_Int32 boxX = maMaxElementDimensions.Width()  + 10;
+    sal_Int32 boxY = maMaxElementDimensions.Height() + 10;
+
+    sal_Int32 x = mbVerticalMode ? -mxScroll->hadjustment_get_value() : 0;
+    sal_Int32 y = !mbVerticalMode ? -mxScroll->vadjustment_get_value() : 0;
+
+    sal_Int32 perLine = 0;
+
+    if (mbVerticalMode)
+        perLine = nControlHeight / boxY;
+    else
+        perLine = nControlWidth / boxX;
+    if (perLine <= 0)
+        perLine = 1;
+
+    if (mbVerticalMode)
+        boxY = nControlHeight / perLine;
+    else
+        boxX = nControlWidth / perLine;
+
+    const SmElement* pCurrentElement = current();
+    for (const std::unique_ptr<SmElement> & i : maElementList)
+    {
+        SmElement* element = i.get();
+        if (element->isSeparator())
+        {
+            if (mbVerticalMode)
+            {
+                x += boxX;
+                y = 0;
+
+                element->mBoxLocation = Point(x, y);
+                element->mBoxSize = Size(10, nControlHeight);
+
+                tools::Rectangle aSelectionRectangle(x + 5 - 1, y + 5,
+                                              x + 5 + 1, nControlHeight - 5);
+
+                if (bDraw)
+                    rContext.DrawRect(rContext.PixelToLogic(aSelectionRectangle));
+                x += 10;
+            }
+            else
+            {
+                x = 0;
+                y += boxY;
+
+                element->mBoxLocation = Point(x, y);
+                element->mBoxSize = Size(nControlWidth, 10);
+
+                tools::Rectangle aSelectionRectangle(x + 5, y + 5 - 1,
+                                              nControlWidth - 5, y + 5 + 1);
+
+                if (bDraw)
+                    rContext.DrawRect(rContext.PixelToLogic(aSelectionRectangle));
+                y += 10;
+            }
+        }
+        else
+        {
+            if (mbVerticalMode)
+            {
+                if (y + boxY > nControlHeight)
+                {
+                    x += boxX;
+                    y = 0;
+                }
+            }
+            else
+            {
+                if ( x + boxX > nControlWidth)
+                {
+                    x = 0;
+                    y += boxY;
+                }
+            }
+
+            element->mBoxLocation = Point(x,y);
+            element->mBoxSize = Size(boxX, boxY);
+
+            if (bDraw)
+            {
+                if (pCurrentElement == element)
+                {
+                    rContext.Push(PushFlags::FILLCOLOR | PushFlags::LINECOLOR);
+                    const StyleSettings& rStyleSettings = rContext.GetSettings().GetStyleSettings();
+                    rContext.SetLineColor(rStyleSettings.GetHighlightColor());
+                    rContext.SetFillColor(COL_TRANSPARENT);
+                    rContext.DrawRect(rContext.PixelToLogic(tools::Rectangle(x + 1, y + 1, x + boxX - 1, y + boxY - 1)));
+                    rContext.DrawRect(rContext.PixelToLogic(tools::Rectangle(x + 2, y + 2, x + boxX - 2, y + boxY - 2)));
+                    rContext.Pop();
+                }
+
+                Size aSizePixel = rContext.LogicToPixel(Size(element->getNode()->GetWidth(),
+                                                    element->getNode()->GetHeight()));
+                Point location(x + ((boxX - aSizePixel.Width()) / 2),
+                               y + ((boxY - aSizePixel.Height()) / 2));
+                SmDrawingVisitor(rContext, rContext.PixelToLogic(location), element->getNode().get());
+            }
+
+            if (mbVerticalMode)
+                y += boxY;
+            else
+                x += boxX;
+        }
+    }
+
+    if (bDraw)
+    {
+        if (!m_bFirstPaintAfterLayout)
+        {
+            rContext.Pop();
+            return;
+        }
+        m_bFirstPaintAfterLayout = false;
+    }
+    else
+        m_bFirstPaintAfterLayout = true;
+
+    if (mbVerticalMode)
+    {
+        sal_Int32 nTotalControlWidth = x + boxX + mxScroll->hadjustment_get_value();
+        if (nTotalControlWidth > GetOutputSizePixel().Width())
+        {
+            mxScroll->hadjustment_set_upper(nTotalControlWidth);
+            mxScroll->hadjustment_set_page_size(nControlWidth);
+            mxScroll->hadjustment_set_page_increment(nControlWidth);
+            mxScroll->set_hpolicy(VclPolicyType::ALWAYS);
+        }
+        else
+        {
+            mxScroll->hadjustment_set_value(0);
+            mxScroll->set_hpolicy(VclPolicyType::NEVER);
+        }
+    }
+    else
+    {
+        sal_Int32 nTotalControlHeight = y + boxY + mxScroll->vadjustment_get_value();
+        if (nTotalControlHeight > GetOutputSizePixel().Height())
+        {
+            mxScroll->vadjustment_set_upper(nTotalControlHeight);
+            mxScroll->vadjustment_set_page_size(nControlHeight);
+            mxScroll->vadjustment_set_page_increment(nControlHeight);
+            mxScroll->set_vpolicy(VclPolicyType::ALWAYS);
+        }
+        else
+        {
+            mxScroll->vadjustment_set_value(0);
+            mxScroll->set_vpolicy(VclPolicyType::NEVER);
+        }
+    }
+    rContext.Pop();
+}
+
+void SmElementsControl::Resize()
+{
+    CustomWidgetController::Resize();
+    LayoutOrPaintContents(GetDrawingArea()->get_ref_device(), false);
+}
+
+void SmElementsControl::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
+{
+    LayoutOrPaintContents(rRenderContext, true);
+}
+
+OUString SmElementsControl::RequestHelp(tools::Rectangle& rRect)
+{
+    if (!hasRollover())
+        return OUString();
+
+    const SmElement* pHelpElement = current();
+    if (!pHelpElement)
+        return OUString();
+
+    rRect = tools::Rectangle(pHelpElement->mBoxLocation, pHelpElement->mBoxSize);
+
+    // get text and display it
+    return pHelpElement->getHelpText();
+}
+
+bool SmElementsControl::MouseMove( const MouseEvent& rMouseEvent )
+{
+    if (rMouseEvent.IsLeaveWindow())
+    {
+        m_nCurrentRolloverElement = SAL_MAX_UINT16;
+        Invalidate();
+        return false;
+    }
+
+    if (tools::Rectangle(Point(0, 0), GetOutputSizePixel()).IsInside(rMouseEvent.GetPosPixel()))
+    {
+        const SmElement* pPrevElement = current();
+        if (pPrevElement)
+        {
+            const tools::Rectangle rect(pPrevElement->mBoxLocation, pPrevElement->mBoxSize);
+            if (rect.IsInside(rMouseEvent.GetPosPixel()))
+                return true;
+        }
+
+        const sal_uInt16 nElementCount = maElementList.size();
+        for (sal_uInt16 n = 0; n < nElementCount; n++)
+        {
+            const SmElement* element = maElementList[n].get();
+            if (pPrevElement == element)
+                continue;
+
+            const tools::Rectangle rect(element->mBoxLocation, element->mBoxSize);
+            if (rect.IsInside(rMouseEvent.GetPosPixel()))
+            {
+                m_nCurrentRolloverElement = n;
+                Invalidate();
+                return true;
+            }
+        }
+        if (pPrevElement && hasRollover())
+            Invalidate();
+        m_nCurrentRolloverElement = SAL_MAX_UINT16;
+        return true;
+    }
+
+    return false;
+}
+
+namespace {
+
+void collectUIInformation(const OUString& aID)
+{
+    EventDescription aDescription;
+    aDescription.aID = aID;
+    aDescription.aParent = "element_selector";
+    aDescription.aAction = "SELECT";
+    aDescription.aKeyWord = "ElementUIObject";
+    UITestLogger::getInstance().logEvent(aDescription);
+}
+
+}
+
+bool SmElementsControl::MouseButtonDown(const MouseEvent& rMouseEvent)
+{
+    GrabFocus();
+
+    if (rMouseEvent.IsLeft() && tools::Rectangle(Point(0, 0), GetOutputSizePixel()).IsInside(rMouseEvent.GetPosPixel()) && maSelectHdlLink.IsSet())
+    {
+        const SmElement* pPrevElement = hasRollover() ? current() : nullptr;
+        if (pPrevElement)
+        {
+            tools::Rectangle rect(pPrevElement->mBoxLocation, pPrevElement->mBoxSize);
+            if (rect.IsInside(rMouseEvent.GetPosPixel()))
+            {
+                setCurrentElement(m_nCurrentRolloverElement);
+                maSelectHdlLink.Call(*const_cast<SmElement*>(pPrevElement));
+                collectUIInformation(OUString::number(m_nCurrentRolloverElement));
+                return true;
+            }
+        }
+
+        const sal_uInt16 nElementCount = maElementList.size();
+        for (sal_uInt16 n = 0; n < nElementCount; n++)
+        {
+            SmElement* element = maElementList[n].get();
+            tools::Rectangle rect(element->mBoxLocation, element->mBoxSize);
+            if (rect.IsInside(rMouseEvent.GetPosPixel()))
+            {
+                setCurrentElement(n);
+                maSelectHdlLink.Call(*element);
+                collectUIInformation(OUString::number(n));
+                return true;
+            }
+        }
+
+        return true;
+    }
+    return false;
+}
+
+void SmElementsControl::GetFocus()
+{
+    CustomWidgetController::GetFocus();
+    Invalidate();
+}
+
+void SmElementsControl::LoseFocus()
+{
+    CustomWidgetController::LoseFocus();
+    Invalidate();
+}
+
+sal_uInt16 SmElementsControl::nextElement(const bool bBackward, const sal_uInt16 nStartPos, const sal_uInt16 nLastElement)
+{
+    sal_uInt16 nPos = nStartPos;
+
+    while (true)
+    {
+        if (bBackward)
+        {
+            if (nPos == 0)
+                break;
+            nPos--;
+        }
+        else
+        {
+            if (nPos == nLastElement)
+                break;
+            nPos++;
+        }
+
+        if (nStartPos == nPos)
+            break;
+        if (!maElementList[nPos]->isSeparator())
+            break;
+    }
+
+    return nPos;
+}
+
+void SmElementsControl::scrollToElement(const bool bBackward, const SmElement *pCur)
+{
+    if (mbVerticalMode)
+    {
+        auto nScrollPos = mxScroll->hadjustment_get_value();
+        nScrollPos += pCur->mBoxLocation.X();
+        if (!bBackward)
+            nScrollPos += pCur->mBoxSize.Width() - GetOutputSizePixel().Width();
+        mxScroll->hadjustment_set_value(nScrollPos);
+    }
+    else
+    {
+        auto nScrollPos = mxScroll->vadjustment_get_value();
+        nScrollPos += pCur->mBoxLocation.Y();
+        if (!bBackward)
+            nScrollPos += pCur->mBoxSize.Height() - GetOutputSizePixel().Height();
+        mxScroll->vadjustment_set_value(nScrollPos);
+    }
+}
+
+void SmElementsControl::stepFocus(const bool bBackward)
+{
+    const sal_uInt16 nStartPos = m_nCurrentElement;
+    const sal_uInt16 nLastElement = (maElementList.size() ? maElementList.size() - 1 : 0);
+    assert(nStartPos <= nLastElement);
+
+    sal_uInt16 nPos = nextElement(bBackward, nStartPos, nLastElement);
+    if (nStartPos != nPos)
+    {
+        m_nCurrentRolloverElement = SAL_MAX_UINT16;
+        setCurrentElement(nPos);
+
+        const tools::Rectangle outputRect(Point(0,0), GetOutputSizePixel());
+        const SmElement *pCur = maElementList[nPos].get();
+        tools::Rectangle elementRect(pCur->mBoxLocation, pCur->mBoxSize);
+        if (!outputRect.IsInside(elementRect))
+            scrollToElement(bBackward, pCur);
+        Invalidate();
+    }
+}
+
+void SmElementsControl::pageFocus(const bool bBackward)
+{
+    const sal_uInt16 nStartPos = m_nCurrentElement;
+    const sal_uInt16 nLastElement = (maElementList.size() ? maElementList.size() - 1 : 0);
+    assert(nStartPos <= nLastElement);
+    tools::Rectangle outputRect(Point(0,0), GetOutputSizePixel());
+    sal_uInt16 nPrevPos = nStartPos;
+    sal_uInt16 nPos = nPrevPos;
+
+    bool bMoved = false;
+    while (true)
+    {
+        nPrevPos = nPos;
+        nPos = nextElement(bBackward, nPrevPos, nLastElement);
+        if (nPrevPos == nPos)
+            break;
+
+        m_nCurrentRolloverElement = SAL_MAX_UINT16;
+
+        SmElement *pCur = maElementList[nPos].get();
+        tools::Rectangle elementRect(pCur->mBoxLocation, pCur->mBoxSize);
+        if (!outputRect.IsInside(elementRect))
+        {
+            if (nPrevPos != nStartPos)
+            {
+                nPos = nPrevPos;
+                break;
+            }
+            if (bMoved)
+                break;
+            pCur = maElementList[nPrevPos].get();
+
+            elementRect = tools::Rectangle(pCur->mBoxLocation, pCur->mBoxSize);
+            if (mbVerticalMode)
+                outputRect.Move(bBackward ? -outputRect.GetWidth() + elementRect.Right() : elementRect.Left(), 0);
+            else
+                outputRect.Move(0, bBackward ? -outputRect.GetHeight() + elementRect.Bottom() : elementRect.Top());
+            bMoved = true;
+        }
+    }
+
+    if (nStartPos != nPos)
+    {
+        setCurrentElement(nPos);
+        if (bMoved)
+            scrollToElement(bBackward, maElementList[nPos].get());
+        Invalidate();
+    }
+}
+
+bool SmElementsControl::KeyInput(const KeyEvent& rKEvt)
+{
+    vcl::KeyCode aKeyCode = rKEvt.GetKeyCode();
+
+    if (aKeyCode.GetModifier())
+    {
+        return false;
+    }
+
+    switch(aKeyCode.GetCode())
+    {
+        case KEY_RETURN:
+            [[fallthrough]];
+        case KEY_SPACE:
+            assert(m_nCurrentElement < maElementList.size());
+            assert(maSelectHdlLink.IsSet());
+            maSelectHdlLink.Call(*maElementList[m_nCurrentElement]);
+            collectUIInformation(OUString::number(m_nCurrentElement));
+            break;
+
+        case KEY_DOWN:
+            [[fallthrough]];
+        case KEY_RIGHT:
+            stepFocus(false);
+            break;
+
+        case KEY_LEFT:
+            [[fallthrough]];
+        case KEY_UP:
+            stepFocus(true);
+            break;
+
+        case KEY_HOME:
+            if (!maElementList.empty())
+            {
+                setCurrentElement(0);
+                mxScroll->vadjustment_set_value(0);
+            }
+            break;
+        case KEY_END:
+            if (!maElementList.empty())
+            {
+                setCurrentElement(maElementList.size() - 1);
+                mxScroll->vadjustment_set_value(mxScroll->vadjustment_get_upper());
+            }
+            break;
+
+        case KEY_PAGEUP:
+            pageFocus(true);
+            break;
+        case KEY_PAGEDOWN:
+            pageFocus(false);
+            break;
+
+        default:
+            return false;
+            break;
+    }
+    return true;
+}
+
+IMPL_LINK_NOARG( SmElementsControl, ScrollHdl, weld::ScrolledWindow&, void )
+{
+    Invalidate();
+}
+
+void SmElementsControl::addElement(SmParser &rParser, const OUString& aElementVisual, const OUString& aElementSource, const OUString& aHelpText)
+{
+    // SAL_MAX_UINT16 is invalid, zero is the scrollbar
+    assert(maElementList.size() < SAL_MAX_UINT16 - 2);
+    auto pNode = rParser.ParseExpression(aElementVisual);
+
+    OutputDevice& rDevice = GetDrawingArea()->get_ref_device();
+    rDevice.Push(PushFlags::MAPMODE);
+    rDevice.SetMapMode( MapMode(MapUnit::Map100thMM) );
+
+    pNode->Prepare(maFormat, *mpDocShell, 0);
+    pNode->SetSize(Fraction(10,8));
+    pNode->Arrange(rDevice, maFormat);
+
+    Size aSizePixel = rDevice.LogicToPixel(Size(pNode->GetWidth(), pNode->GetHeight()), MapMode(MapUnit::Map100thMM));
+    if (aSizePixel.Width() > maMaxElementDimensions.Width()) {
+        maMaxElementDimensions.setWidth( aSizePixel.Width() );
+    }
+
+    if (aSizePixel.Height() > maMaxElementDimensions.Height()) {
+        maMaxElementDimensions.setHeight( aSizePixel.Height() );
+    }
+
+    maElementList.push_back(std::make_unique<SmElement>(std::move(pNode), aElementSource, aHelpText));
+
+    rDevice.Pop();
+}
+
+void SmElementsControl::setElementSetId(const char* pSetId)
+{
+    if (msCurrentSetId == pSetId)
+        return;
+    msCurrentSetId = pSetId;
+    maMaxElementDimensions = Size();
+    build();
+}
+
+void SmElementsControl::addElements(const SmElementDescr aElementsArray[], sal_uInt16 aElementsArraySize)
+{
+    SmParser aParser;
+    aParser.SetImportSymbolNames(true);
+
+    for (sal_uInt16 i = 0; i < aElementsArraySize ; i++)
+    {
+        const char* pElement = aElementsArray[i].first;
+        const char* pElementHelp = aElementsArray[i].second;
+        if (!pElement) {
+            maElementList.push_back(std::make_unique<SmElementSeparator>());
+        } else {
+            OUString aElement(OUString::createFromAscii(pElement));
+            if (aElement == RID_NEWLINE)
+                addElement(aParser, OUString(u"\u21B5"), aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SBLANK)
+                addElement(aParser, "\"`\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_BLANK)
+                addElement(aParser, "\"~\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_PHANTOMX)
+                addElement(aParser, "\"" + SmResId(STR_HIDE) +"\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_BOLDX)
+                addElement(aParser, "bold B", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_ITALX)
+                addElement(aParser, "ital I", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SIZEXY)
+                addElement(aParser, "\"" + SmResId(STR_SIZE) + "\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_FONTXY)
+                addElement(aParser, "\"" + SmResId(STR_FONT) + "\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_BLACK)
+                addElement(aParser, "color black { \"" + SmResId(STR_BLACK) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_BLUE)
+                addElement(aParser, "color blue { \"" + SmResId(STR_BLUE) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_GREEN)
+                addElement(aParser, "color green { \"" + SmResId(STR_GREEN) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_RED)
+                addElement(aParser, "color red { \"" + SmResId(STR_RED) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_CYAN)
+                addElement(aParser, "color cyan { \"" + SmResId(STR_CYAN) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_MAGENTA)
+                addElement(aParser, "color magenta { \"" + SmResId(STR_MAGENTA) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_YELLOW)
+                addElement(aParser, "color yellow { \"" + SmResId(STR_YELLOW) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_GRAY)
+                addElement(aParser, "color gray { \"" + SmResId(STR_GRAY) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_LIME)
+                addElement(aParser, "color lime { \"" + SmResId(STR_LIME) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_MAROON)
+                addElement(aParser, "color maroon { \"" + SmResId(STR_MAROON) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_NAVY)
+                addElement(aParser, "color navy { \"" + SmResId(STR_NAVY) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_OLIVE)
+                addElement(aParser, "color olive { \"" + SmResId(STR_OLIVE) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_PURPLE)
+                addElement(aParser, "color purple { \"" + SmResId(STR_PURPLE) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_SILVER)
+                addElement(aParser, "color silver { \"" + SmResId(STR_SILVER) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_TEAL)
+                addElement(aParser, "color teal { \"" + SmResId(STR_TEAL) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_COLORX_RGB)
+                addElement(aParser, "color rgb 0 0 0 { \"" + SmResId(STR_RGB) + "\" }", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_ALIGNLX)
+                addElement(aParser, "\"" + SmResId(STR_ALIGN_LEFT) + "\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_ALIGNCX)
+                addElement(aParser, "\"" + SmResId(STR_ALIGN_CENTER) + "\"", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_ALIGNRX)
+                addElement(aParser, "\"" + SmResId(STR_ALIGN_RIGHT) + "\"", aElement, SmResId(pElementHelp));
+
+            else if (aElement == RID_SLRPARENTX)
+                addElement(aParser, "left ( binom{<?>}{<?>} right ) ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRBRACKETX)
+                addElement(aParser, "left [ binom{<?>}{<?>} right ] ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRDBRACKETX)
+                addElement(aParser, "left ldbracket binom{<?>}{<?>} right rdbracket ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRBRACEX)
+                addElement(aParser, "left lbrace binom{<?>}{<?>} right rbrace ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRANGLEX)
+                addElement(aParser, "left langle binom{<?>}{<?>} right rangle ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRCEILX)
+                addElement(aParser, "left lceil binom{<?>}{<?>} right rceil ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRFLOORX)
+                addElement(aParser, "left lfloor binom{<?>}{<?>} right rfloor ", aElement, SmResId(pElementHelp));
+
+            else if (aElement == RID_SLRLINEX)
+                addElement(aParser, "left lline binom{<?>}{<?>} right rline ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLRDLINEX)
+                addElement(aParser, "left ldline binom{<?>}{<?>} right rdline ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_SLMRANGLEXY)
+                addElement(aParser, "left langle binom{<?>}{<?>} mline binom{<?>}{<?>} right rangle ", aElement, SmResId(pElementHelp));
+
+            else if (aElement == RID_XOVERBRACEY)
+                addElement(aParser, "{<?><?><?>} overbrace {<?>} ", aElement, SmResId(pElementHelp));
+            else if (aElement == RID_XUNDERBRACEY)
+                addElement(aParser, "{<?><?><?>} underbrace {<?>} ", aElement, SmResId(pElementHelp));
+            else
+                addElement(aParser, aElement, aElement, pElementHelp ? SmResId(pElementHelp) : "");
+        }
+    }
+}
+
+void SmElementsControl::build()
+{
+    // The order is important!
+    // 1. Ensure there are no items left, including the default scrollbar!
+    // 2. Release all the current accessible items.
+    //    This will check for new items after releasing them!
+    // 3. Set the cursor element
+    maElementList.clear();
+    mxScroll->hadjustment_set_value(0);
+    mxScroll->vadjustment_set_value(0);
+    mxScroll->set_hpolicy(VclPolicyType::NEVER);
+    mxScroll->set_vpolicy(VclPolicyType::NEVER);
+
+    if (m_xAccessible.is())
+        m_xAccessible->ReleaseAllItems();
+
+    setCurrentElement(SAL_MAX_UINT16);
+
+    // The first element is the scrollbar. We can't change its indexInParent
+    // value, as this is set by being a child of the SmElementsControl.
+    m_nCurrentOffset = 1;
+    for (sal_uInt16 n = 0; n < SAL_N_ELEMENTS(m_aCategories); ++n)
+    {
+        if (msCurrentSetId == std::get<0>(m_aCategories[n]))
+        {
+            addElements(std::get<1>(m_aCategories[n]), std::get<2>(m_aCategories[n]));
+            break;
+        }
+        else
+            m_nCurrentOffset += std::get<2>(m_aCategories[n]);
+    }
+
+    m_nCurrentRolloverElement = SAL_MAX_UINT16;
+    LayoutOrPaintContents(GetDrawingArea()->get_ref_device(), false);
+
+    if (m_xAccessible.is())
+        m_xAccessible->AddAllItems();
+
+    setCurrentElement(0);
+    Invalidate();
+}
+
+void SmElementsControl::SetDrawingArea(weld::DrawingArea* pDrawingArea)
+{
+    CustomWidgetController::SetDrawingArea(pDrawingArea);
+    OutputDevice& rDevice = pDrawingArea->get_ref_device();
+    maFormat.SetBaseSize(rDevice.PixelToLogic(Size(0, SmPtsTo100th_mm(12))));
+    Size aSize(rDevice.LogicToPixel(Size(10, 100), MapMode(MapUnit::MapAppFont)));
+    // give it an arbitrary small width request so it can shrink in the sidebar
+    pDrawingArea->set_size_request(42, aSize.Height());
+    SetOutputSizePixel(aSize);
+}
+
+FactoryFunction SmElementsControl::GetUITestFactory() const
+{
+    return ElementSelectorUIObject::create;
+}
+
+bool SmElementsControl::itemIsSeparator(sal_uInt16 nPos) const
+{
+    if (nPos < m_nCurrentOffset)
+        return true;
+    nPos -= m_nCurrentOffset;
+    if (nPos >= maElementList.size())
+        return true;
+    return maElementList[nPos]->isSeparator();
+}
+
+css::uno::Reference<css::accessibility::XAccessible> SmElementsControl::CreateAccessible()
+{
+    if (!m_xAccessible.is())
+    {
+        m_xAccessible = new AccessibleSmElementsControl(*this);
+        m_xAccessible->AddAllItems();
+    }
+    return m_xAccessible.get();
+}
+
+bool SmElementsControl::itemTrigger(sal_uInt16 nPos)
+{
+    if (nPos < m_nCurrentOffset)
+        return false;
+    nPos -= m_nCurrentOffset;
+    if (nPos >= maElementList.size())
+        return false;
+
+    maSelectHdlLink.Call(*maElementList[nPos]);
+    collectUIInformation(OUString::number(nPos));
+    return true;
+}
+
+tools::Rectangle SmElementsControl::itemPosRect(sal_uInt16 nPos) const
+{
+    if (nPos < m_nCurrentOffset)
+        return tools::Rectangle();
+    nPos -= m_nCurrentOffset;
+    if (nPos >= maElementList.size())
+        return tools::Rectangle();
+
+    SmElement* pItem = maElementList[nPos].get();
+    return tools::Rectangle(pItem->mBoxLocation, pItem->mBoxSize);
+}
+
+bool SmElementsControl::itemIsVisible(sal_uInt16 nPos) const
+{
+    tools::Rectangle elementRect = itemPosRect(nPos);
+    if (elementRect.IsEmpty())
+        return false;
+
+    tools::Rectangle outputRect(Point(0, 0), GetOutputSizePixel());
+    return outputRect.IsInside(elementRect);
+}
+
+sal_uInt16 SmElementsControl::itemCount() const { return maElementList.size(); }
+
+sal_uInt16 SmElementsControl::itemHighlighted() const { return m_nCurrentElement; }
+
+void SmElementsControl::setItemHighlighted(sal_uInt16 nPos)
+{
+    if (m_nCurrentRolloverElement == nPos)
+        return;
+    if (nPos != SAL_MAX_UINT16 && nPos >= maElementList.size())
+        return;
+
+    if (maElementList[nPos]->isSeparator())
+        m_nCurrentRolloverElement = SAL_MAX_UINT16;
+    else
+        m_nCurrentRolloverElement = nPos;
+    Invalidate();
+}
+
+OUString SmElementsControl::itemName(sal_uInt16 nPos) const
+{
+    if (nPos < m_nCurrentOffset)
+        return OUString();
+    nPos -= m_nCurrentOffset;
+    if (nPos >= maElementList.size())
+        return OUString();
+
+    return maElementList[nPos]->getHelpText();
+}
+
+sal_uInt16 SmElementsControl::itemAtPos(const Point& rPoint) const
+{
+    sal_uInt16 nElementCount = maElementList.size();
+    for (sal_uInt16 n = 0; n < nElementCount; n++)
+    {
+        const SmElement* pItem = maElementList[n].get();
+        tools::Rectangle elementRect(pItem->mBoxLocation, pItem->mBoxSize);
+        if (elementRect.IsInside(rPoint))
+            return n;
+    }
+    return SAL_MAX_UINT16;
+}
+
+SmElementsDockingWindow::SmElementsDockingWindow(SfxBindings* pInputBindings, SfxChildWindow* pChildWindow, vcl::Window* pParent)
+    : SfxDockingWindow(pInputBindings, pChildWindow, pParent, "DockingElements",
+        "modules/smath/ui/dockingelements.ui")
+    , mxElementsControl(new SmElementsControl(m_xBuilder->weld_scrolled_window("scrolledwindow")))
+    , mxElementsControlWin(new weld::CustomWeld(*m_xBuilder, "element_selector", *mxElementsControl))
+    , mxElementListBox(m_xBuilder->weld_combo_box("listbox"))
+{
+    // give it an arbitrary small width request so it can shrink in the sidebar
+    mxElementListBox->set_size_request(42, -1);
+
+    for (size_t i = 0; i < SmElementsControl::categoriesSize(); ++i)
+        mxElementListBox->append_text(SmResId(std::get<0>(SmElementsControl::categories()[i])));
+
+    mxElementListBox->connect_changed(LINK(this, SmElementsDockingWindow, ElementSelectedHandle));
+    mxElementListBox->set_active_text(SmResId(RID_CATEGORY_UNARY_BINARY_OPERATORS));
+
+    mxElementsControl->setElementSetId(RID_CATEGORY_UNARY_BINARY_OPERATORS);
+    mxElementsControl->SetSelectHdl(LINK(this, SmElementsDockingWindow, SelectClickHandler));
+}
+
+SmElementsDockingWindow::~SmElementsDockingWindow ()
+{
+    disposeOnce();
+}
+
+void SmElementsDockingWindow::dispose()
+{
+    mxElementsControlWin.reset();
+    mxElementsControl.reset();
+    mxElementListBox.reset();
+    SfxDockingWindow::dispose();
+}
+
+void SmElementsDockingWindow::ToggleFloatingMode()
+{
+    SfxDockingWindow::ToggleFloatingMode();
+
+    if (GetFloatingWindow())
+        GetFloatingWindow()->SetMinOutputSizePixel( Size(100, 100) );
+
+    Invalidate();
+}
+
+void SmElementsDockingWindow::EndDocking( const tools::Rectangle& rReactangle, bool bFloatMode)
+{
+    SfxDockingWindow::EndDocking(rReactangle, bFloatMode);
+    bool bVertical = ( GetAlignment() == SfxChildAlignment::TOP || GetAlignment() == SfxChildAlignment::BOTTOM );
+    mxElementsControl->setVerticalMode(bVertical);
+}
+
+IMPL_LINK(SmElementsDockingWindow, SelectClickHandler, SmElement&, rElement, void)
+{
+    SmViewShell* pViewSh = GetView();
+
+    if (pViewSh)
+    {
+        std::unique_ptr<SfxStringItem> pInsertCommand = std::make_unique<SfxStringItem>(SID_INSERTCOMMANDTEXT, rElement.getText());
+        pViewSh->GetViewFrame()->GetDispatcher()->ExecuteList(
+            SID_INSERTCOMMANDTEXT, SfxCallMode::RECORD,
+            { pInsertCommand.get() });
+    }
+}
+
+IMPL_LINK( SmElementsDockingWindow, ElementSelectedHandle, weld::ComboBox&, rList, void)
+{
+    for (size_t i = 0; i < SmElementsControl::categoriesSize(); ++i)
+    {
+        const char *pCurrentCategory = std::get<0>(SmElementsControl::categories()[i]);
+        OUString aCurrentCategoryString = SmResId(pCurrentCategory);
+        if (aCurrentCategoryString == rList.get_active_text())
+        {
+            mxElementsControl->setElementSetId(pCurrentCategory);
+            return;
+        }
+    }
+}
+
+SmViewShell* SmElementsDockingWindow::GetView()
+{
+    SfxViewShell* pView = GetBindings().GetDispatcher()->GetFrame()->GetViewShell();
+    return  dynamic_cast<SmViewShell*>( pView);
+}
+
+void SmElementsDockingWindow::Resize()
+{
+    bool bVertical = ( GetAlignment() == SfxChildAlignment::TOP || GetAlignment() == SfxChildAlignment::BOTTOM );
+    mxElementsControl->setVerticalMode(bVertical);
+
+    SfxDockingWindow::Resize();
+    Invalidate();
+}
+
+SFX_IMPL_DOCKINGWINDOW_WITHID(SmElementsDockingWindowWrapper, SID_ELEMENTSDOCKINGWINDOW);
+
+SmElementsDockingWindowWrapper::SmElementsDockingWindowWrapper(
+                            vcl::Window *pParentWindow, sal_uInt16 nId,
+                            SfxBindings *pBindings, SfxChildWinInfo *pInfo) :
+    SfxChildWindow(pParentWindow, nId)
+{
+    VclPtrInstance<SmElementsDockingWindow> pDialog(pBindings, this, pParentWindow);
+    SetWindow(pDialog);
+    pDialog->setDeferredProperties();
+    pDialog->SetPosSizePixel(Point(0, 0), Size(300, 0));
+    pDialog->Show();
+
+    SetAlignment(SfxChildAlignment::LEFT);
+
+    pDialog->Initialize( pInfo );
+}
+
+SmElementsDockingWindowWrapper::~SmElementsDockingWindowWrapper()
+{
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/accessibility.cxx b/starmath/source/accessibility.cxx
new file mode 100644
index 000000000..854f09443
--- /dev/null
+++ b/starmath/source/accessibility.cxx
@@ -0,0 +1,1791 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <memory>
+
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleTextType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventObject.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <unotools/accessiblerelationsethelper.hxx>
+
+#include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
+#include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>
+#include <com/sun/star/i18n/WordType.hpp>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <comphelper/accessibleeventnotifier.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <osl/diagnose.h>
+#include <svx/AccessibleTextHelper.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <vcl/unohelp2.hxx>
+#include <vcl/settings.hxx>
+
+#include <tools/gen.hxx>
+#include <svl/itemset.hxx>
+
+#include <editeng/editobj.hxx>
+#include <editeng/editdata.hxx>
+#include <editeng/editview.hxx>
+#include <editeng/eeitem.hxx>
+#include <editeng/outliner.hxx>
+#include <editeng/unoedhlp.hxx>
+
+
+#include "accessibility.hxx"
+#include <document.hxx>
+#include <view.hxx>
+#include <strings.hrc>
+#include <smmod.hxx>
+
+using namespace com::sun::star;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::accessibility;
+
+
+static awt::Rectangle lcl_GetBounds( vcl::Window const *pWin )
+{
+    // !! see VCLXAccessibleComponent::implGetBounds()
+
+    //! the coordinates returned are relative to the parent window !
+    //! Thus the top-left point may be different from (0, 0) !
+
+    awt::Rectangle aBounds;
+    if (pWin)
+    {
+        tools::Rectangle aRect = pWin->GetWindowExtentsRelative( nullptr );
+        aBounds.X       = aRect.Left();
+        aBounds.Y       = aRect.Top();
+        aBounds.Width   = aRect.GetWidth();
+        aBounds.Height  = aRect.GetHeight();
+        vcl::Window* pParent = pWin->GetAccessibleParentWindow();
+        if (pParent)
+        {
+            tools::Rectangle aParentRect = pParent->GetWindowExtentsRelative( nullptr );
+            awt::Point aParentScreenLoc( aParentRect.Left(), aParentRect.Top() );
+            aBounds.X -= aParentScreenLoc.X;
+            aBounds.Y -= aParentScreenLoc.Y;
+        }
+    }
+    return aBounds;
+}
+
+static awt::Point lcl_GetLocationOnScreen( vcl::Window const *pWin )
+{
+    // !! see VCLXAccessibleComponent::getLocationOnScreen()
+
+    awt::Point aPos;
+    if (pWin)
+    {
+        tools::Rectangle aRect = pWin->GetWindowExtentsRelative( nullptr );
+        aPos.X = aRect.Left();
+        aPos.Y = aRect.Top();
+    }
+    return aPos;
+}
+
+
+SmGraphicAccessible::SmGraphicAccessible( SmGraphicWindow *pGraphicWin ) :
+    aAccName            (SmResId(RID_DOCUMENTSTR)),
+    nClientId           (0),
+    pWin                (pGraphicWin)
+{
+    OSL_ENSURE( pWin, "SmGraphicAccessible: window missing" );
+}
+
+SmGraphicAccessible::~SmGraphicAccessible()
+{
+}
+
+
+SmDocShell * SmGraphicAccessible::GetDoc_Impl()
+{
+    SmViewShell *pView = pWin ? pWin->GetView() : nullptr;
+    return pView ? pView->GetDoc() : nullptr;
+}
+
+OUString SmGraphicAccessible::GetAccessibleText_Impl()
+{
+    OUString aTxt;
+    SmDocShell *pDoc = GetDoc_Impl();
+    if (pDoc)
+        aTxt = pDoc->GetAccessibleText();
+    return aTxt;
+}
+
+void SmGraphicAccessible::ClearWin()
+{
+    pWin = nullptr;   // implicitly results in AccessibleStateType::DEFUNC set
+
+    if ( nClientId )
+    {
+        comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nClientId, *this );
+        nClientId =  0;
+    }
+}
+
+void SmGraphicAccessible::LaunchEvent(
+        const sal_Int16 nAccessibleEventId,
+        const uno::Any &rOldVal,
+        const uno::Any &rNewVal)
+{
+    AccessibleEventObject aEvt;
+    aEvt.Source     = static_cast<XAccessible *>(this);
+    aEvt.EventId    = nAccessibleEventId;
+    aEvt.OldValue   = rOldVal;
+    aEvt.NewValue   = rNewVal ;
+
+    // pass event on to event-listener's
+    if (nClientId)
+        comphelper::AccessibleEventNotifier::addEvent( nClientId, aEvt );
+}
+
+uno::Reference< XAccessibleContext > SAL_CALL SmGraphicAccessible::getAccessibleContext()
+{
+    return this;
+}
+
+sal_Bool SAL_CALL SmGraphicAccessible::containsPoint( const awt::Point& aPoint )
+{
+    //! the arguments coordinates are relative to the current window !
+    //! Thus the top-left point is (0, 0)
+
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    Size aSz( pWin->GetSizePixel() );
+    return  aPoint.X >= 0  &&  aPoint.Y >= 0  &&
+            aPoint.X < aSz.Width()  &&  aPoint.Y < aSz.Height();
+}
+
+uno::Reference< XAccessible > SAL_CALL SmGraphicAccessible::getAccessibleAtPoint(
+        const awt::Point& aPoint )
+{
+    SolarMutexGuard aGuard;
+    XAccessible *pRes = nullptr;
+    if (containsPoint( aPoint ))
+        pRes = this;
+    return pRes;
+}
+
+awt::Rectangle SAL_CALL SmGraphicAccessible::getBounds()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+    return lcl_GetBounds( pWin );
+}
+
+awt::Point SAL_CALL SmGraphicAccessible::getLocation()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+    awt::Rectangle aRect( lcl_GetBounds( pWin ) );
+    return awt::Point( aRect.X, aRect.Y );
+}
+
+awt::Point SAL_CALL SmGraphicAccessible::getLocationOnScreen()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+    return lcl_GetLocationOnScreen( pWin );
+}
+
+awt::Size SAL_CALL SmGraphicAccessible::getSize()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+
+    Size aSz( pWin->GetSizePixel() );
+#if OSL_DEBUG_LEVEL > 0 && !defined NDEBUG
+    awt::Rectangle aRect( lcl_GetBounds( pWin ) );
+    Size aSz2( aRect.Width, aRect.Height );
+    assert(aSz == aSz2 && "mismatch in width" );
+#endif
+    return awt::Size( aSz.Width(), aSz.Height() );
+}
+
+void SAL_CALL SmGraphicAccessible::grabFocus()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    pWin->GrabFocus();
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getForeground()
+{
+    SolarMutexGuard aGuard;
+
+    if (!pWin)
+        throw RuntimeException();
+    return static_cast<sal_Int32>(pWin->GetTextColor());
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getBackground()
+{
+    SolarMutexGuard aGuard;
+
+    if (!pWin)
+        throw RuntimeException();
+    Wallpaper aWall( pWin->GetDisplayBackground() );
+    Color nCol;
+    if (aWall.IsBitmap() || aWall.IsGradient())
+        nCol = pWin->GetSettings().GetStyleSettings().GetWindowColor();
+    else
+        nCol = aWall.GetColor();
+    return static_cast<sal_Int32>(nCol);
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getAccessibleChildCount()
+{
+    return 0;
+}
+
+Reference< XAccessible > SAL_CALL SmGraphicAccessible::getAccessibleChild(
+        sal_Int32 /*i*/ )
+{
+    throw IndexOutOfBoundsException();  // there is no child...
+}
+
+Reference< XAccessible > SAL_CALL SmGraphicAccessible::getAccessibleParent()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    vcl::Window *pAccParent = pWin->GetAccessibleParentWindow();
+    OSL_ENSURE( pAccParent, "accessible parent missing" );
+    return pAccParent ? pAccParent->GetAccessible() : Reference< XAccessible >();
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getAccessibleIndexInParent()
+{
+    SolarMutexGuard aGuard;
+    sal_Int32 nIdx = -1;
+    vcl::Window *pAccParent = pWin ? pWin->GetAccessibleParentWindow() : nullptr;
+    if (pAccParent)
+    {
+        sal_uInt16 nCnt = pAccParent->GetAccessibleChildWindowCount();
+        for (sal_uInt16 i = 0;  i < nCnt  &&  nIdx == -1;  ++i)
+            if (pAccParent->GetAccessibleChildWindow( i ) == pWin)
+                nIdx = i;
+    }
+    return nIdx;
+}
+
+sal_Int16 SAL_CALL SmGraphicAccessible::getAccessibleRole()
+{
+    return AccessibleRole::DOCUMENT;
+}
+
+OUString SAL_CALL SmGraphicAccessible::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+    SmDocShell *pDoc = GetDoc_Impl();
+    return pDoc ? pDoc->GetText() : OUString();
+}
+
+OUString SAL_CALL SmGraphicAccessible::getAccessibleName()
+{
+    SolarMutexGuard aGuard;
+    return aAccName;
+}
+
+Reference< XAccessibleRelationSet > SAL_CALL SmGraphicAccessible::getAccessibleRelationSet()
+{
+    SolarMutexGuard aGuard;
+    Reference< XAccessibleRelationSet > xRelSet = new utl::AccessibleRelationSetHelper();
+    return xRelSet;   // empty relation set
+}
+
+Reference< XAccessibleStateSet > SAL_CALL SmGraphicAccessible::getAccessibleStateSet()
+{
+    SolarMutexGuard aGuard;
+    ::utl::AccessibleStateSetHelper *pStateSet =
+            new ::utl::AccessibleStateSetHelper;
+
+    Reference<XAccessibleStateSet> xStateSet( pStateSet );
+
+    if (!pWin)
+        pStateSet->AddState( AccessibleStateType::DEFUNC );
+    else
+    {
+        pStateSet->AddState( AccessibleStateType::ENABLED );
+        pStateSet->AddState( AccessibleStateType::FOCUSABLE );
+        if (pWin->HasFocus())
+            pStateSet->AddState( AccessibleStateType::FOCUSED );
+        if (pWin->IsActive())
+            pStateSet->AddState( AccessibleStateType::ACTIVE );
+        if (pWin->IsVisible())
+            pStateSet->AddState( AccessibleStateType::SHOWING );
+        if (pWin->IsReallyVisible())
+            pStateSet->AddState( AccessibleStateType::VISIBLE );
+        if (COL_TRANSPARENT != pWin->GetBackground().GetColor())
+            pStateSet->AddState( AccessibleStateType::OPAQUE );
+    }
+
+    return xStateSet;
+}
+
+Locale SAL_CALL SmGraphicAccessible::getLocale()
+{
+    SolarMutexGuard aGuard;
+    // should be the document language...
+    // We use the language of the localized symbol names here.
+    return Application::GetSettings().GetUILanguageTag().getLocale();
+}
+
+
+void SAL_CALL SmGraphicAccessible::addAccessibleEventListener(
+        const Reference< XAccessibleEventListener >& xListener )
+{
+    if (xListener.is())
+    {
+        SolarMutexGuard aGuard;
+        if (pWin)
+        {
+            if (!nClientId)
+                nClientId = comphelper::AccessibleEventNotifier::registerClient( );
+            comphelper::AccessibleEventNotifier::addEventListener( nClientId, xListener );
+        }
+    }
+}
+
+void SAL_CALL SmGraphicAccessible::removeAccessibleEventListener(
+        const Reference< XAccessibleEventListener >& xListener )
+{
+    if (!(xListener.is() && nClientId))
+        return;
+
+    SolarMutexGuard aGuard;
+    sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( nClientId, xListener );
+    if ( !nListenerCount )
+    {
+        // no listeners anymore
+        // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
+        // and at least to us not firing any events anymore, in case somebody calls
+        // NotifyAccessibleEvent, again
+        comphelper::AccessibleEventNotifier::revokeClient( nClientId );
+        nClientId = 0;
+    }
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getCaretPosition()
+{
+    return 0;
+}
+
+sal_Bool SAL_CALL SmGraphicAccessible::setCaretPosition( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+    OUString aTxt( GetAccessibleText_Impl() );
+    if (nIndex >= aTxt.getLength())
+        throw IndexOutOfBoundsException();
+    return false;
+}
+
+sal_Unicode SAL_CALL SmGraphicAccessible::getCharacter( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+    OUString aTxt( GetAccessibleText_Impl() );
+    if (nIndex >= aTxt.getLength())
+        throw IndexOutOfBoundsException();
+    return aTxt[nIndex];
+}
+
+Sequence< beans::PropertyValue > SAL_CALL SmGraphicAccessible::getCharacterAttributes(
+        sal_Int32 nIndex,
+        const uno::Sequence< OUString > & /*rRequestedAttributes*/ )
+{
+    SolarMutexGuard aGuard;
+    sal_Int32 nLen = GetAccessibleText_Impl().getLength();
+    if (!(0 <= nIndex  &&  nIndex < nLen))
+        throw IndexOutOfBoundsException();
+    return Sequence< beans::PropertyValue >();
+}
+
+awt::Rectangle SAL_CALL SmGraphicAccessible::getCharacterBounds( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    awt::Rectangle aRes;
+
+    if (!pWin)
+        throw RuntimeException();
+
+    // get accessible text
+    SmViewShell *pView = pWin->GetView();
+    SmDocShell  *pDoc  = pView ? pView->GetDoc() : nullptr;
+    if (!pDoc)
+        throw RuntimeException();
+    OUString aTxt( GetAccessibleText_Impl() );
+    if (!(0 <= nIndex  &&  nIndex <= aTxt.getLength()))   // aTxt.getLength() is valid
+        throw IndexOutOfBoundsException();
+
+    // find a reasonable rectangle for position aTxt.getLength().
+    bool bWasBehindText = (nIndex == aTxt.getLength());
+    if (bWasBehindText && nIndex)
+        --nIndex;
+
+    const SmNode *pTree = pDoc->GetFormulaTree();
+    const SmNode *pNode = pTree->FindNodeWithAccessibleIndex( nIndex );
+    //! pNode may be 0 if the index belongs to a char that was inserted
+    //! only for the accessible text!
+    if (pNode)
+    {
+        sal_Int32 nAccIndex = pNode->GetAccessibleIndex();
+        OSL_ENSURE( nAccIndex >= 0, "invalid accessible index" );
+        OSL_ENSURE( nIndex >= nAccIndex, "index out of range" );
+
+        OUStringBuffer aBuf;
+        pNode->GetAccessibleText(aBuf);
+        OUString aNodeText = aBuf.makeStringAndClear();
+        sal_Int32 nNodeIndex = nIndex - nAccIndex;
+        if (0 <= nNodeIndex  &&  nNodeIndex < aNodeText.getLength())
+        {
+            // get appropriate rectangle
+            Point aOffset(pNode->GetTopLeft() - pTree->GetTopLeft());
+            Point aTLPos (pWin->GetFormulaDrawPos() + aOffset);
+            Size  aSize (pNode->GetSize());
+
+            std::unique_ptr<long[]> pXAry(new long[ aNodeText.getLength() ]);
+            pWin->SetFont( pNode->GetFont() );
+            pWin->GetTextArray( aNodeText, pXAry.get(), 0, aNodeText.getLength() );
+            aTLPos.AdjustX(nNodeIndex > 0 ? pXAry[nNodeIndex - 1] : 0 );
+            aSize.setWidth( nNodeIndex > 0 ? pXAry[nNodeIndex] - pXAry[nNodeIndex - 1] : pXAry[nNodeIndex] );
+            pXAry.reset();
+
+            aTLPos = pWin->LogicToPixel( aTLPos );
+            aSize  = pWin->LogicToPixel( aSize );
+            aRes.X = aTLPos.X();
+            aRes.Y = aTLPos.Y();
+            aRes.Width  = aSize.Width();
+            aRes.Height = aSize.Height();
+        }
+    }
+
+    // take rectangle from last character and move it to the right
+    if (bWasBehindText)
+        aRes.X += aRes.Width;
+
+    return aRes;
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getCharacterCount()
+{
+    SolarMutexGuard aGuard;
+    return GetAccessibleText_Impl().getLength();
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getIndexAtPoint( const awt::Point& aPoint )
+{
+    SolarMutexGuard aGuard;
+
+    sal_Int32 nRes = -1;
+    if (pWin)
+    {
+        const SmNode *pTree = pWin->GetView()->GetDoc()->GetFormulaTree();
+        // can be NULL! e.g. if one clicks within the window already during loading of the
+        // document (before the parser even started)
+        if (!pTree)
+            return nRes;
+
+        // get position relative to formula draw position
+        Point  aPos( aPoint.X, aPoint.Y );
+        aPos = pWin->PixelToLogic( aPos );
+        aPos -= pWin->GetFormulaDrawPos();
+
+        // if it was inside the formula then get the appropriate node
+        const SmNode *pNode = nullptr;
+        if (pTree->OrientedDist(aPos) <= 0)
+            pNode = pTree->FindRectClosestTo(aPos);
+
+        if (pNode)
+        {
+            // get appropriate rectangle
+            Point   aOffset( pNode->GetTopLeft() - pTree->GetTopLeft() );
+            Point   aTLPos ( aOffset );
+            Size  aSize( pNode->GetSize() );
+
+            tools::Rectangle aRect( aTLPos, aSize );
+            if (aRect.IsInside( aPos ))
+            {
+                OSL_ENSURE( pNode->IsVisible(), "node is not a leaf" );
+                OUStringBuffer aBuf;
+                pNode->GetAccessibleText(aBuf);
+                OUString aTxt = aBuf.makeStringAndClear();
+                OSL_ENSURE( !aTxt.isEmpty(), "no accessible text available" );
+
+                long nNodeX = pNode->GetLeft();
+
+                std::unique_ptr<long[]> pXAry(new long[ aTxt.getLength() ]);
+                pWin->SetFont( pNode->GetFont() );
+                pWin->GetTextArray( aTxt, pXAry.get(), 0, aTxt.getLength() );
+                for (sal_Int32 i = 0;  i < aTxt.getLength()  &&  nRes == -1;  ++i)
+                {
+                    if (pXAry[i] + nNodeX > aPos.X())
+                        nRes = i;
+                }
+                pXAry.reset();
+                OSL_ENSURE( nRes >= 0  &&  nRes < aTxt.getLength(), "index out of range" );
+                OSL_ENSURE( pNode->GetAccessibleIndex() >= 0,
+                        "invalid accessible index" );
+
+                nRes = pNode->GetAccessibleIndex() + nRes;
+            }
+        }
+    }
+    return nRes;
+}
+
+OUString SAL_CALL SmGraphicAccessible::getSelectedText()
+{
+    return OUString();
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getSelectionStart()
+{
+    return -1;
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getSelectionEnd()
+{
+    return -1;
+}
+
+sal_Bool SAL_CALL SmGraphicAccessible::setSelection(
+        sal_Int32 nStartIndex,
+        sal_Int32 nEndIndex )
+{
+    SolarMutexGuard aGuard;
+    sal_Int32 nLen = GetAccessibleText_Impl().getLength();
+    if (!(0 <= nStartIndex  &&  nStartIndex < nLen) ||
+        !(0 <= nEndIndex    &&  nEndIndex   < nLen))
+        throw IndexOutOfBoundsException();
+    return false;
+}
+
+OUString SAL_CALL SmGraphicAccessible::getText()
+{
+    SolarMutexGuard aGuard;
+    return GetAccessibleText_Impl();
+}
+
+OUString SAL_CALL SmGraphicAccessible::getTextRange(
+        sal_Int32 nStartIndex,
+        sal_Int32 nEndIndex )
+{
+    //!! nEndIndex may be the string length per definition of the interface !!
+    //!! text should be copied exclusive that end index though. And arguments
+    //!! may be switched.
+
+    SolarMutexGuard aGuard;
+    OUString aTxt( GetAccessibleText_Impl() );
+    sal_Int32 nStart = std::min(nStartIndex, nEndIndex);
+    sal_Int32 nEnd   = std::max(nStartIndex, nEndIndex);
+    if ((nStart > aTxt.getLength()) ||
+        (nEnd   > aTxt.getLength()))
+        throw IndexOutOfBoundsException();
+    return aTxt.copy( nStart, nEnd - nStart );
+}
+
+css::accessibility::TextSegment SAL_CALL SmGraphicAccessible::getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType )
+{
+    SolarMutexGuard aGuard;
+    OUString aTxt( GetAccessibleText_Impl() );
+    //!! nIndex is allowed to be the string length
+    if (nIndex > aTxt.getLength())
+        throw IndexOutOfBoundsException();
+
+    css::accessibility::TextSegment aResult;
+    aResult.SegmentStart = -1;
+    aResult.SegmentEnd = -1;
+    if ( (AccessibleTextType::CHARACTER == aTextType)  &&  (nIndex < aTxt.getLength()) )
+    {
+        aResult.SegmentText = aTxt.copy(nIndex, 1);
+        aResult.SegmentStart = nIndex;
+        aResult.SegmentEnd = nIndex+1;
+    }
+    return aResult;
+}
+
+css::accessibility::TextSegment SAL_CALL SmGraphicAccessible::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType )
+{
+    SolarMutexGuard aGuard;
+    OUString aTxt( GetAccessibleText_Impl() );
+    //!! nIndex is allowed to be the string length
+    if (nIndex > aTxt.getLength())
+        throw IndexOutOfBoundsException();
+
+    css::accessibility::TextSegment aResult;
+    aResult.SegmentStart = -1;
+    aResult.SegmentEnd = -1;
+
+    if ( (AccessibleTextType::CHARACTER == aTextType)  && nIndex )
+    {
+        aResult.SegmentText = aTxt.copy(nIndex-1, 1);
+        aResult.SegmentStart = nIndex-1;
+        aResult.SegmentEnd = nIndex;
+    }
+    return aResult;
+}
+
+css::accessibility::TextSegment SAL_CALL SmGraphicAccessible::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType )
+{
+    SolarMutexGuard aGuard;
+    OUString aTxt( GetAccessibleText_Impl() );
+    //!! nIndex is allowed to be the string length
+    if (nIndex > aTxt.getLength())
+        throw IndexOutOfBoundsException();
+
+    css::accessibility::TextSegment aResult;
+    aResult.SegmentStart = -1;
+    aResult.SegmentEnd = -1;
+
+    nIndex++; // text *behind*
+    if ( (AccessibleTextType::CHARACTER == aTextType)  &&  (nIndex < aTxt.getLength()) )
+    {
+        aResult.SegmentText = aTxt.copy(nIndex, 1);
+        aResult.SegmentStart = nIndex;
+        aResult.SegmentEnd = nIndex+1;
+    }
+    return aResult;
+}
+
+sal_Bool SAL_CALL SmGraphicAccessible::copyText(
+        sal_Int32 nStartIndex,
+        sal_Int32 nEndIndex )
+{
+    SolarMutexGuard aGuard;
+    bool bReturn = false;
+
+    if (!pWin)
+        throw RuntimeException();
+
+    Reference< datatransfer::clipboard::XClipboard > xClipboard = pWin->GetClipboard();
+    if ( xClipboard.is() )
+    {
+        OUString sText( getTextRange(nStartIndex, nEndIndex) );
+
+        vcl::unohelper::TextDataObject* pDataObj = new vcl::unohelper::TextDataObject( sText );
+        SolarMutexReleaser aReleaser;
+        xClipboard->setContents( pDataObj, nullptr );
+
+        Reference< datatransfer::clipboard::XFlushableClipboard > xFlushableClipboard( xClipboard, uno::UNO_QUERY );
+        if( xFlushableClipboard.is() )
+            xFlushableClipboard->flushClipboard();
+
+        bReturn = true;
+    }
+
+
+    return bReturn;
+}
+
+sal_Bool SAL_CALL SmGraphicAccessible::scrollSubstringTo( sal_Int32, sal_Int32, AccessibleScrollType )
+{
+    return false;
+}
+
+OUString SAL_CALL SmGraphicAccessible::getImplementationName()
+{
+    return "SmGraphicAccessible";
+}
+
+sal_Bool SAL_CALL SmGraphicAccessible::supportsService(
+        const OUString& rServiceName )
+{
+    return  cppu::supportsService(this, rServiceName);
+}
+
+Sequence< OUString > SAL_CALL SmGraphicAccessible::getSupportedServiceNames()
+{
+    return {
+        "css::accessibility::Accessible",
+        "css::accessibility::AccessibleComponent",
+        "css::accessibility::AccessibleContext",
+        "css::accessibility::AccessibleText"
+    };
+}
+
+
+SmEditSource::SmEditSource( SmEditAccessible &rAcc ) :
+    aViewFwd    (rAcc),
+    aTextFwd    (rAcc, *this),
+    aEditViewFwd(rAcc),
+    rEditAcc (rAcc)
+{
+}
+
+SmEditSource::SmEditSource( const SmEditSource &rSrc ) :
+    SvxEditSource(),
+    aViewFwd    (rSrc.rEditAcc),
+    aTextFwd    (rSrc.rEditAcc, *this),
+    aEditViewFwd(rSrc.rEditAcc),
+    rEditAcc    (rSrc.rEditAcc)
+{
+}
+
+SmEditSource::~SmEditSource()
+{
+}
+
+std::unique_ptr<SvxEditSource> SmEditSource::Clone() const
+{
+    return std::unique_ptr<SvxEditSource>(new SmEditSource( *this ));
+}
+
+SvxTextForwarder* SmEditSource::GetTextForwarder()
+{
+    return &aTextFwd;
+}
+
+SvxViewForwarder* SmEditSource::GetViewForwarder()
+{
+    return &aViewFwd;
+}
+
+SvxEditViewForwarder* SmEditSource::GetEditViewForwarder( bool /*bCreate*/ )
+{
+    return &aEditViewFwd;
+}
+
+void SmEditSource::UpdateData()
+{
+    // would possibly only by needed if the XText interface is implemented
+    // and its text needs to be updated.
+}
+
+SfxBroadcaster & SmEditSource::GetBroadcaster() const
+{
+    return const_cast<SmEditSource*>(this)->aBroadCaster;
+}
+
+SmViewForwarder::SmViewForwarder( SmEditAccessible &rAcc ) :
+    rEditAcc(rAcc)
+{
+}
+
+SmViewForwarder::~SmViewForwarder()
+{
+}
+
+bool SmViewForwarder::IsValid() const
+{
+    return rEditAcc.GetEditView() != nullptr;
+}
+
+Point SmViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
+{
+    EditView *pEditView = rEditAcc.GetEditView();
+    OutputDevice* pOutDev = pEditView ? pEditView->GetWindow() : nullptr;
+
+    if( pOutDev )
+    {
+        MapMode aMapMode(pOutDev->GetMapMode());
+        Point aPoint( OutputDevice::LogicToLogic( rPoint, rMapMode,
+                                                  MapMode(aMapMode.GetMapUnit())) );
+        aMapMode.SetOrigin(Point());
+        return pOutDev->LogicToPixel( aPoint, aMapMode );
+    }
+
+    return Point();
+}
+
+Point SmViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
+{
+    EditView *pEditView = rEditAcc.GetEditView();
+    OutputDevice* pOutDev = pEditView ? pEditView->GetWindow() : nullptr;
+
+    if( pOutDev )
+    {
+        MapMode aMapMode(pOutDev->GetMapMode());
+        aMapMode.SetOrigin(Point());
+        Point aPoint( pOutDev->PixelToLogic( rPoint, aMapMode ) );
+        return OutputDevice::LogicToLogic( aPoint,
+                                           MapMode(aMapMode.GetMapUnit()),
+                                           rMapMode );
+    }
+
+    return Point();
+}
+
+
+SmTextForwarder::SmTextForwarder( SmEditAccessible& rAcc, SmEditSource & rSource) :
+    rEditAcc ( rAcc ),
+    rEditSource (rSource)
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->SetNotifyHdl( LINK(this, SmTextForwarder, NotifyHdl) );
+}
+
+SmTextForwarder::~SmTextForwarder()
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->SetNotifyHdl( Link<EENotify&,void>() );
+}
+
+IMPL_LINK(SmTextForwarder, NotifyHdl, EENotify&, rNotify, void)
+{
+    ::std::unique_ptr< SfxHint > aHint = SvxEditSourceHelper::EENotification2Hint( &rNotify );
+    if (aHint)
+        rEditSource.GetBroadcaster().Broadcast(*aHint);
+}
+
+sal_Int32 SmTextForwarder::GetParagraphCount() const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetParagraphCount() : 0;
+}
+
+sal_Int32 SmTextForwarder::GetTextLen( sal_Int32 nParagraph ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetTextLen( nParagraph ) : 0;
+}
+
+OUString SmTextForwarder::GetText( const ESelection& rSel ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    OUString aRet;
+    if (pEditEngine)
+        aRet = pEditEngine->GetText( rSel );
+    return convertLineEnd(aRet, GetSystemLineEnd());
+}
+
+SfxItemSet SmTextForwarder::GetAttribs( const ESelection& rSel, EditEngineAttribs nOnlyHardAttrib ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    assert(pEditEngine && "EditEngine missing");
+    if( rSel.nStartPara == rSel.nEndPara )
+    {
+        GetAttribsFlags nFlags = GetAttribsFlags::NONE;
+        switch( nOnlyHardAttrib )
+        {
+        case EditEngineAttribs::All:
+            nFlags = GetAttribsFlags::ALL;
+            break;
+        case EditEngineAttribs::OnlyHard:
+            nFlags = GetAttribsFlags::CHARATTRIBS;
+            break;
+        default:
+            SAL_WARN("starmath", "unknown flags for SmTextForwarder::GetAttribs");
+        }
+
+        return pEditEngine->GetAttribs( rSel.nStartPara, rSel.nStartPos, rSel.nEndPos, nFlags );
+    }
+    else
+    {
+        return pEditEngine->GetAttribs( rSel, nOnlyHardAttrib );
+    }
+}
+
+SfxItemSet SmTextForwarder::GetParaAttribs( sal_Int32 nPara ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    assert(pEditEngine && "EditEngine missing");
+
+    SfxItemSet aSet( pEditEngine->GetParaAttribs( nPara ) );
+
+    sal_uInt16 nWhich = EE_PARA_START;
+    while( nWhich <= EE_PARA_END )
+    {
+        if( aSet.GetItemState( nWhich ) != SfxItemState::SET )
+        {
+            if( pEditEngine->HasParaAttrib( nPara, nWhich ) )
+                aSet.Put( pEditEngine->GetParaAttrib( nPara, nWhich ) );
+        }
+        nWhich++;
+    }
+
+    return aSet;
+}
+
+void SmTextForwarder::SetParaAttribs( sal_Int32 nPara, const SfxItemSet& rSet )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->SetParaAttribs( nPara, rSet );
+}
+
+SfxItemPool* SmTextForwarder::GetPool() const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetEmptyItemSet().GetPool() : nullptr;
+}
+
+void SmTextForwarder::RemoveAttribs( const ESelection& rSelection )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->RemoveAttribs( rSelection, false/*bRemoveParaAttribs*/, 0 );
+}
+
+void SmTextForwarder::GetPortions( sal_Int32 nPara, std::vector<sal_Int32>& rList ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->GetPortions( nPara, rList );
+}
+
+void SmTextForwarder::QuickInsertText( const OUString& rText, const ESelection& rSel )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->QuickInsertText( rText, rSel );
+}
+
+void SmTextForwarder::QuickInsertLineBreak( const ESelection& rSel )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->QuickInsertLineBreak( rSel );
+}
+
+void SmTextForwarder::QuickInsertField( const SvxFieldItem& rFld, const ESelection& rSel )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->QuickInsertField( rFld, rSel );
+}
+
+void SmTextForwarder::QuickSetAttribs( const SfxItemSet& rSet, const ESelection& rSel )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->QuickSetAttribs( rSet, rSel );
+}
+
+bool SmTextForwarder::IsValid() const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    // cannot reliably query EditEngine state
+    // while in the middle of an update
+    return pEditEngine && pEditEngine->GetUpdateMode();
+}
+
+OUString SmTextForwarder::CalcFieldValue( const SvxFieldItem& rField, sal_Int32 nPara, sal_Int32 nPos, std::optional<Color>& rpTxtColor, std::optional<Color>& rpFldColor )
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->CalcFieldValue(rField, nPara, nPos, rpTxtColor, rpFldColor) : OUString();
+}
+
+void SmTextForwarder::FieldClicked(const SvxFieldItem&)
+{
+}
+
+static SfxItemState GetSvxEditEngineItemState( EditEngine const & rEditEngine, const ESelection& rSel, sal_uInt16 nWhich )
+{
+    std::vector<EECharAttrib> aAttribs;
+
+    const SfxPoolItem*  pLastItem = nullptr;
+
+    SfxItemState eState = SfxItemState::DEFAULT;
+
+    // check all paragraphs inside the selection
+    for( sal_Int32 nPara = rSel.nStartPara; nPara <= rSel.nEndPara; nPara++ )
+    {
+        SfxItemState eParaState = SfxItemState::DEFAULT;
+
+        // calculate start and endpos for this paragraph
+        sal_Int32 nPos = 0;
+        if( rSel.nStartPara == nPara )
+            nPos = rSel.nStartPos;
+
+        sal_Int32 nEndPos = rSel.nEndPos;
+        if( rSel.nEndPara != nPara )
+            nEndPos = rEditEngine.GetTextLen( nPara );
+
+
+        // get list of char attribs
+        rEditEngine.GetCharAttribs( nPara, aAttribs );
+
+        bool bEmpty = true;     // we found no item inside the selection of this paragraph
+        bool bGaps  = false;    // we found items but there are gaps between them
+        sal_Int32 nLastEnd = nPos;
+
+        const SfxPoolItem* pParaItem = nullptr;
+
+        for(const auto& rAttrib : aAttribs)
+        {
+            OSL_ENSURE( rAttrib.pAttr, "GetCharAttribs gives corrupt data" );
+
+            const bool bEmptyPortion = (rAttrib.nStart == rAttrib.nEnd);
+            if( (!bEmptyPortion && (rAttrib.nStart >= nEndPos)) || (bEmptyPortion && (rAttrib.nStart > nEndPos)) )
+                break;  // break if we are already behind our selection
+
+            if( (!bEmptyPortion && (rAttrib.nEnd <= nPos)) || (bEmptyPortion && (rAttrib.nEnd < nPos)) )
+                continue;   // or if the attribute ends before our selection
+
+            if( rAttrib.pAttr->Which() != nWhich )
+                continue; // skip if is not the searched item
+
+            // if we already found an item
+            if( pParaItem )
+            {
+                // ... and its different to this one than the state is don't care
+                if( *pParaItem != *(rAttrib.pAttr) )
+                    return SfxItemState::DONTCARE;
+            }
+            else
+            {
+                pParaItem = rAttrib.pAttr;
+            }
+
+            if( bEmpty )
+                bEmpty = false;
+
+            if( !bGaps && rAttrib.nStart > nLastEnd )
+                bGaps = true;
+
+            nLastEnd = rAttrib.nEnd;
+        }
+
+        if( !bEmpty && !bGaps && nLastEnd < ( nEndPos - 1 ) )
+            bGaps = true;
+        if( bEmpty )
+            eParaState = SfxItemState::DEFAULT;
+        else if( bGaps )
+            eParaState = SfxItemState::DONTCARE;
+        else
+            eParaState = SfxItemState::SET;
+
+        // if we already found an item check if we found the same
+        if( pLastItem )
+        {
+            if( (pParaItem == nullptr) || (*pLastItem != *pParaItem) )
+                return SfxItemState::DONTCARE;
+        }
+        else
+        {
+            pLastItem = pParaItem;
+            eState = eParaState;
+        }
+    }
+
+    return eState;
+}
+
+SfxItemState SmTextForwarder::GetItemState( const ESelection& rSel, sal_uInt16 nWhich ) const
+{
+    SfxItemState nState = SfxItemState::DISABLED;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        nState = GetSvxEditEngineItemState( *pEditEngine, rSel, nWhich );
+    return nState;
+}
+
+SfxItemState SmTextForwarder::GetItemState( sal_Int32 nPara, sal_uInt16 nWhich ) const
+{
+    SfxItemState nState = SfxItemState::DISABLED;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        const SfxItemSet& rSet = pEditEngine->GetParaAttribs( nPara );
+        nState = rSet.GetItemState( nWhich );
+    }
+    return nState;
+}
+
+LanguageType SmTextForwarder::GetLanguage( sal_Int32 nPara, sal_Int32 nIndex ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetLanguage(nPara, nIndex) : LANGUAGE_NONE;
+}
+
+sal_Int32 SmTextForwarder::GetFieldCount( sal_Int32 nPara ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetFieldCount(nPara) : 0;
+}
+
+EFieldInfo SmTextForwarder::GetFieldInfo( sal_Int32 nPara, sal_uInt16 nField ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetFieldInfo( nPara, nField ) : EFieldInfo();
+}
+
+EBulletInfo SmTextForwarder::GetBulletInfo( sal_Int32 /*nPara*/ ) const
+{
+    return EBulletInfo();
+}
+
+tools::Rectangle SmTextForwarder::GetCharBounds( sal_Int32 nPara, sal_Int32 nIndex ) const
+{
+    tools::Rectangle aRect(0,0,0,0);
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+
+    if (pEditEngine)
+    {
+        // Handle virtual position one-past-the end of the string
+        if( nIndex >= pEditEngine->GetTextLen(nPara) )
+        {
+            if( nIndex )
+                aRect = pEditEngine->GetCharacterBounds( EPosition(nPara, nIndex-1) );
+
+            aRect.Move( aRect.Right() - aRect.Left(), 0 );
+            aRect.SetSize( Size(1, pEditEngine->GetTextHeight()) );
+        }
+        else
+        {
+            aRect = pEditEngine->GetCharacterBounds( EPosition(nPara, nIndex) );
+        }
+    }
+    return aRect;
+}
+
+tools::Rectangle SmTextForwarder::GetParaBounds( sal_Int32 nPara ) const
+{
+    tools::Rectangle aRect(0,0,0,0);
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+
+    if (pEditEngine)
+    {
+        const Point aPnt = pEditEngine->GetDocPosTopLeft( nPara );
+        const sal_uLong nWidth = pEditEngine->CalcTextWidth();
+        const sal_uLong nHeight = pEditEngine->GetTextHeight( nPara );
+        aRect = tools::Rectangle( aPnt.X(), aPnt.Y(), aPnt.X() + nWidth, aPnt.Y() + nHeight );
+    }
+
+    return aRect;
+}
+
+MapMode SmTextForwarder::GetMapMode() const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetRefMapMode() : MapMode( MapUnit::Map100thMM );
+}
+
+OutputDevice* SmTextForwarder::GetRefDevice() const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetRefDevice() : nullptr;
+}
+
+bool SmTextForwarder::GetIndexAtPoint( const Point& rPos, sal_Int32& nPara, sal_Int32& nIndex ) const
+{
+    bool bRes = false;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        EPosition aDocPos = pEditEngine->FindDocPosition( rPos );
+        nPara   = aDocPos.nPara;
+        nIndex  = aDocPos.nIndex;
+        bRes = true;
+    }
+    return bRes;
+}
+
+bool SmTextForwarder::GetWordIndices( sal_Int32 nPara, sal_Int32 nIndex, sal_Int32& nStart, sal_Int32& nEnd ) const
+{
+    bool bRes = false;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        ESelection aRes = pEditEngine->GetWord( ESelection(nPara, nIndex, nPara, nIndex), css::i18n::WordType::DICTIONARY_WORD );
+
+        if( aRes.nStartPara == nPara &&
+            aRes.nStartPara == aRes.nEndPara )
+        {
+            nStart = aRes.nStartPos;
+            nEnd = aRes.nEndPos;
+
+            bRes = true;
+        }
+    }
+
+    return bRes;
+}
+
+bool SmTextForwarder::GetAttributeRun( sal_Int32& nStartIndex, sal_Int32& nEndIndex, sal_Int32 nPara, sal_Int32 nIndex, bool bInCell ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (!pEditEngine)
+        return false;
+    SvxEditSourceHelper::GetAttributeRun( nStartIndex, nEndIndex, *pEditEngine, nPara, nIndex, bInCell );
+    return true;
+}
+
+sal_Int32 SmTextForwarder::GetLineCount( sal_Int32 nPara ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetLineCount(nPara) : 0;
+}
+
+sal_Int32 SmTextForwarder::GetLineLen( sal_Int32 nPara, sal_Int32 nLine ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetLineLen(nPara, nLine) : 0;
+}
+
+void SmTextForwarder::GetLineBoundaries( /*out*/sal_Int32 &rStart, /*out*/sal_Int32 &rEnd, sal_Int32 nPara, sal_Int32 nLine ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->GetLineBoundaries(rStart, rEnd, nPara, nLine);
+    else
+        rStart = rEnd = 0;
+}
+
+sal_Int32 SmTextForwarder::GetLineNumberAtIndex( sal_Int32 nPara, sal_Int32 nIndex ) const
+{
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    return pEditEngine ? pEditEngine->GetLineNumberAtIndex(nPara, nIndex) : 0;
+}
+
+bool SmTextForwarder::QuickFormatDoc( bool /*bFull*/ )
+{
+    bool bRes = false;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        pEditEngine->QuickFormatDoc();
+        bRes = true;
+    }
+    return bRes;
+}
+
+sal_Int16 SmTextForwarder::GetDepth( sal_Int32 /*nPara*/ ) const
+{
+    // math has no outliner...
+    return -1;
+}
+
+bool SmTextForwarder::SetDepth( sal_Int32 /*nPara*/, sal_Int16 nNewDepth )
+{
+    // math has no outliner...
+    return -1 == nNewDepth;  // is it the value from 'GetDepth' ?
+}
+
+bool SmTextForwarder::Delete( const ESelection& rSelection )
+{
+    bool bRes = false;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        pEditEngine->QuickDelete( rSelection );
+        pEditEngine->QuickFormatDoc();
+        bRes = true;
+    }
+    return bRes;
+}
+
+bool SmTextForwarder::InsertText( const OUString& rStr, const ESelection& rSelection )
+{
+    bool bRes = false;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        pEditEngine->QuickInsertText( rStr, rSelection );
+        pEditEngine->QuickFormatDoc();
+        bRes = true;
+    }
+    return bRes;
+}
+
+const SfxItemSet*   SmTextForwarder::GetEmptyItemSetPtr()
+{
+    const SfxItemSet *pItemSet = nullptr;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        pItemSet = &pEditEngine->GetEmptyItemSet();
+    }
+    return pItemSet;
+}
+
+void SmTextForwarder::AppendParagraph()
+{
+    // append an empty paragraph
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine)
+    {
+        sal_Int32 nParaCount = pEditEngine->GetParagraphCount();
+        pEditEngine->InsertParagraph( nParaCount, OUString() );
+    }
+}
+
+sal_Int32 SmTextForwarder::AppendTextPortion( sal_Int32 nPara, const OUString &rText, const SfxItemSet &rSet )
+{
+    sal_uInt16 nRes = 0;
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine && nPara < pEditEngine->GetParagraphCount())
+    {
+        // append text
+        ESelection aSel( nPara, pEditEngine->GetTextLen( nPara ) );
+        pEditEngine->QuickInsertText( rText, aSel );
+
+        // set attributes for new appended text
+        nRes = aSel.nEndPos = pEditEngine->GetTextLen( nPara );
+        pEditEngine->QuickSetAttribs( rSet, aSel );
+    }
+    return nRes;
+}
+
+void SmTextForwarder::CopyText(const SvxTextForwarder& rSource)
+{
+
+    const SmTextForwarder* pSourceForwarder = dynamic_cast< const SmTextForwarder* >( &rSource );
+    if( !pSourceForwarder )
+        return;
+    EditEngine* pSourceEditEngine = pSourceForwarder->rEditAcc.GetEditEngine();
+    EditEngine *pEditEngine = rEditAcc.GetEditEngine();
+    if (pEditEngine && pSourceEditEngine )
+    {
+        std::unique_ptr<EditTextObject> pNewTextObject = pSourceEditEngine->CreateTextObject();
+        pEditEngine->SetText( *pNewTextObject );
+    }
+}
+
+
+SmEditViewForwarder::SmEditViewForwarder( SmEditAccessible& rAcc ) :
+    rEditAcc( rAcc )
+{
+}
+
+SmEditViewForwarder::~SmEditViewForwarder()
+{
+}
+
+bool SmEditViewForwarder::IsValid() const
+{
+    return rEditAcc.GetEditView() != nullptr;
+}
+
+
+Point SmEditViewForwarder::LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const
+{
+    EditView *pEditView = rEditAcc.GetEditView();
+    OutputDevice* pOutDev = pEditView ? pEditView->GetWindow() : nullptr;
+
+    if( pOutDev )
+    {
+        MapMode aMapMode(pOutDev->GetMapMode());
+        Point aPoint( OutputDevice::LogicToLogic( rPoint, rMapMode,
+                                                  MapMode(aMapMode.GetMapUnit())));
+        aMapMode.SetOrigin(Point());
+        return pOutDev->LogicToPixel( aPoint, aMapMode );
+    }
+
+    return Point();
+}
+
+Point SmEditViewForwarder::PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const
+{
+    EditView *pEditView = rEditAcc.GetEditView();
+    OutputDevice* pOutDev = pEditView ? pEditView->GetWindow() : nullptr;
+
+    if( pOutDev )
+    {
+        MapMode aMapMode(pOutDev->GetMapMode());
+        aMapMode.SetOrigin(Point());
+        Point aPoint( pOutDev->PixelToLogic( rPoint, aMapMode ) );
+        return OutputDevice::LogicToLogic( aPoint,
+                                           MapMode(aMapMode.GetMapUnit()),
+                                           rMapMode );
+    }
+
+    return Point();
+}
+
+bool SmEditViewForwarder::GetSelection( ESelection& rSelection ) const
+{
+    bool bRes = false;
+    EditView *pEditView = rEditAcc.GetEditView();
+    if (pEditView)
+    {
+        rSelection = pEditView->GetSelection();
+        bRes = true;
+    }
+    return bRes;
+}
+
+bool SmEditViewForwarder::SetSelection( const ESelection& rSelection )
+{
+    bool bRes = false;
+    EditView *pEditView = rEditAcc.GetEditView();
+    if (pEditView)
+    {
+        pEditView->SetSelection( rSelection );
+        bRes = true;
+    }
+    return bRes;
+}
+
+bool SmEditViewForwarder::Copy()
+{
+    bool bRes = false;
+    EditView *pEditView = rEditAcc.GetEditView();
+    if (pEditView)
+    {
+        pEditView->Copy();
+        bRes = true;
+    }
+    return bRes;
+}
+
+bool SmEditViewForwarder::Cut()
+{
+    bool bRes = false;
+    EditView *pEditView = rEditAcc.GetEditView();
+    if (pEditView)
+    {
+        pEditView->Cut();
+        bRes = true;
+    }
+    return bRes;
+}
+
+bool SmEditViewForwarder::Paste()
+{
+    bool bRes = false;
+    EditView *pEditView = rEditAcc.GetEditView();
+    if (pEditView)
+    {
+        pEditView->Paste();
+        bRes = true;
+    }
+    return bRes;
+}
+
+
+SmEditAccessible::SmEditAccessible( SmEditWindow *pEditWin ) :
+    aAccName            (SmResId(STR_CMDBOXWINDOW)),
+    pTextHelper         (),
+    pWin                (pEditWin)
+{
+    OSL_ENSURE( pWin, "SmEditAccessible: window missing" );
+}
+
+SmEditAccessible::~SmEditAccessible()
+{
+}
+
+::accessibility::AccessibleTextHelper *SmEditAccessible::GetTextHelper()
+{
+    return pTextHelper.get();
+}
+
+void SmEditAccessible::Init()
+{
+    OSL_ENSURE( pWin, "SmEditAccessible: window missing" );
+    if (pWin)
+    {
+        EditEngine *pEditEngine = pWin->GetEditEngine();
+        EditView   *pEditView   = pWin->GetEditView();
+        if (pEditEngine && pEditView)
+        {
+            assert(!pTextHelper);
+            pTextHelper.reset(new ::accessibility::AccessibleTextHelper( std::make_unique<SmEditSource>( *this ) ));
+            pTextHelper->SetEventSource( this );
+        }
+    }
+}
+
+void SmEditAccessible::ClearWin()
+{
+    // remove handler before current object gets destroyed
+    // (avoid handler being called for already dead object)
+    EditEngine *pEditEngine = GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->SetNotifyHdl( Link<EENotify&,void>() );
+
+    pWin = nullptr;   // implicitly results in AccessibleStateType::DEFUNC set
+
+    //! make TextHelper implicitly release C++ references to some core objects
+    pTextHelper->SetEditSource( ::std::unique_ptr<SvxEditSource>() );
+    //! make TextHelper release references
+    //! (e.g. the one set by the 'SetEventSource' call)
+    pTextHelper->Dispose();
+    pTextHelper.reset();
+}
+
+// XAccessible
+uno::Reference< XAccessibleContext > SAL_CALL SmEditAccessible::getAccessibleContext(  )
+{
+    return this;
+}
+
+// XAccessibleComponent
+sal_Bool SAL_CALL SmEditAccessible::containsPoint( const awt::Point& aPoint )
+{
+    //! the arguments coordinates are relative to the current window !
+    //! Thus the top left-point is (0, 0)
+
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    Size aSz( pWin->GetSizePixel() );
+    return  aPoint.X >= 0  &&  aPoint.Y >= 0  &&
+            aPoint.X < aSz.Width()  &&  aPoint.Y < aSz.Height();
+}
+
+uno::Reference< XAccessible > SAL_CALL SmEditAccessible::getAccessibleAtPoint( const awt::Point& aPoint )
+{
+    SolarMutexGuard aGuard;
+    if (!pTextHelper)
+        throw RuntimeException();
+    return pTextHelper->GetAt( aPoint );
+}
+
+awt::Rectangle SAL_CALL SmEditAccessible::getBounds(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+    return lcl_GetBounds( pWin );
+}
+
+awt::Point SAL_CALL SmEditAccessible::getLocation(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+    awt::Rectangle aRect( lcl_GetBounds( pWin ) );
+    return awt::Point( aRect.X, aRect.Y );
+}
+
+awt::Point SAL_CALL SmEditAccessible::getLocationOnScreen(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+    return lcl_GetLocationOnScreen( pWin );
+}
+
+awt::Size SAL_CALL SmEditAccessible::getSize(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    OSL_ENSURE(pWin->GetParent()->GetAccessible() == getAccessibleParent(),
+            "mismatch of window parent and accessible parent" );
+
+    Size aSz( pWin->GetSizePixel() );
+#if OSL_DEBUG_LEVEL > 0 && !defined NDEBUG
+    awt::Rectangle aRect( lcl_GetBounds( pWin ) );
+    Size aSz2( aRect.Width, aRect.Height );
+    assert(aSz == aSz2 && "mismatch in width");
+#endif
+    return awt::Size( aSz.Width(), aSz.Height() );
+}
+
+void SAL_CALL SmEditAccessible::grabFocus(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    pWin->GrabFocus();
+}
+
+sal_Int32 SAL_CALL SmEditAccessible::getForeground()
+{
+    SolarMutexGuard aGuard;
+
+    if (!pWin)
+        throw RuntimeException();
+    return static_cast<sal_Int32>(pWin->GetTextColor());
+}
+
+sal_Int32 SAL_CALL SmEditAccessible::getBackground()
+{
+    SolarMutexGuard aGuard;
+
+    if (!pWin)
+        throw RuntimeException();
+    Wallpaper aWall( pWin->GetDisplayBackground() );
+    Color nCol;
+    if (aWall.IsBitmap() || aWall.IsGradient())
+        nCol = pWin->GetSettings().GetStyleSettings().GetWindowColor();
+    else
+        nCol = aWall.GetColor();
+    return static_cast<sal_Int32>(nCol);
+}
+
+// XAccessibleContext
+sal_Int32 SAL_CALL SmEditAccessible::getAccessibleChildCount(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pTextHelper)
+        return 0;
+    return pTextHelper->GetChildCount();
+}
+
+uno::Reference< XAccessible > SAL_CALL SmEditAccessible::getAccessibleChild( sal_Int32 i )
+{
+    SolarMutexGuard aGuard;
+    if (!pTextHelper)
+        throw RuntimeException();
+    return pTextHelper->GetChild( i );
+}
+
+uno::Reference< XAccessible > SAL_CALL SmEditAccessible::getAccessibleParent(  )
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    vcl::Window *pAccParent = pWin->GetAccessibleParentWindow();
+    OSL_ENSURE( pAccParent, "accessible parent missing" );
+    return pAccParent ? pAccParent->GetAccessible() : Reference< XAccessible >();
+}
+
+sal_Int32 SAL_CALL SmEditAccessible::getAccessibleIndexInParent(  )
+{
+    SolarMutexGuard aGuard;
+    sal_Int32 nIdx = -1;
+    vcl::Window *pAccParent = pWin ? pWin->GetAccessibleParentWindow() : nullptr;
+    if (pAccParent)
+    {
+        sal_uInt16 nCnt = pAccParent->GetAccessibleChildWindowCount();
+        for (sal_uInt16 i = 0;  i < nCnt  &&  nIdx == -1;  ++i)
+            if (pAccParent->GetAccessibleChildWindow( i ) == pWin)
+                nIdx = i;
+    }
+    return nIdx;
+}
+
+sal_Int16 SAL_CALL SmEditAccessible::getAccessibleRole(  )
+{
+    return AccessibleRole::TEXT_FRAME;
+}
+
+OUString SAL_CALL SmEditAccessible::getAccessibleDescription(  )
+{
+    return OUString();  // empty as agreed with product-management
+}
+
+OUString SAL_CALL SmEditAccessible::getAccessibleName(  )
+{
+    SolarMutexGuard aGuard;
+    // same name as displayed by the window when not docked
+    return aAccName;
+}
+
+uno::Reference< XAccessibleRelationSet > SAL_CALL SmEditAccessible::getAccessibleRelationSet(  )
+{
+    Reference< XAccessibleRelationSet > xRelSet = new utl::AccessibleRelationSetHelper();
+    return xRelSet;   // empty relation set
+}
+
+uno::Reference< XAccessibleStateSet > SAL_CALL SmEditAccessible::getAccessibleStateSet(  )
+{
+    SolarMutexGuard aGuard;
+    ::utl::AccessibleStateSetHelper *pStateSet =
+            new ::utl::AccessibleStateSetHelper;
+
+    Reference<XAccessibleStateSet> xStateSet( pStateSet );
+
+    if (!pWin || !pTextHelper)
+        pStateSet->AddState( AccessibleStateType::DEFUNC );
+    else
+    {
+        pStateSet->AddState( AccessibleStateType::MULTI_LINE );
+        pStateSet->AddState( AccessibleStateType::ENABLED );
+        pStateSet->AddState( AccessibleStateType::EDITABLE );
+        pStateSet->AddState( AccessibleStateType::FOCUSABLE );
+        if (pWin->HasFocus())
+            pStateSet->AddState( AccessibleStateType::FOCUSED );
+        if (pWin->IsActive())
+            pStateSet->AddState( AccessibleStateType::ACTIVE );
+        if (pWin->IsVisible())
+            pStateSet->AddState( AccessibleStateType::SHOWING );
+        if (pWin->IsReallyVisible())
+            pStateSet->AddState( AccessibleStateType::VISIBLE );
+        if (COL_TRANSPARENT != pWin->GetBackground().GetColor())
+            pStateSet->AddState( AccessibleStateType::OPAQUE );
+    }
+
+    return xStateSet;
+}
+
+Locale SAL_CALL SmEditAccessible::getLocale(  )
+{
+    SolarMutexGuard aGuard;
+    // should be the document language...
+    // We use the language of the localized symbol names here.
+    return Application::GetSettings().GetUILanguageTag().getLocale();
+}
+
+
+// XAccessibleEventBroadcaster
+void SAL_CALL SmEditAccessible::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+{
+    if (pTextHelper)   // not disposing (about to destroy view shell)
+        pTextHelper->AddEventListener( xListener );
+}
+
+void SAL_CALL SmEditAccessible::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+{
+   if (pTextHelper)   // not disposing (about to destroy view shell)
+        pTextHelper->RemoveEventListener( xListener );
+}
+
+OUString SAL_CALL SmEditAccessible::getImplementationName()
+{
+    return "SmEditAccessible";
+}
+
+sal_Bool SAL_CALL SmEditAccessible::supportsService(
+        const OUString& rServiceName )
+{
+    return  cppu::supportsService(this, rServiceName);
+}
+
+Sequence< OUString > SAL_CALL SmEditAccessible::getSupportedServiceNames()
+{
+    return {
+        "css::accessibility::Accessible",
+        "css::accessibility::AccessibleComponent",
+        "css::accessibility::AccessibleContext"
+    };
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/accessibility.hxx b/starmath/source/accessibility.hxx
new file mode 100644
index 000000000..8cccdc916
--- /dev/null
+++ b/starmath/source/accessibility.hxx
@@ -0,0 +1,362 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_ACCESSIBILITY_HXX
+#define INCLUDED_STARMATH_SOURCE_ACCESSIBILITY_HXX
+
+#include <com/sun/star/accessibility/AccessibleScrollType.hpp>
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
+#include <com/sun/star/accessibility/XAccessibleContext.hpp>
+#include <com/sun/star/accessibility/XAccessibleText.hpp>
+#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Reference.h>
+#include <cppuhelper/implbase.hxx>
+#include <svl/SfxBroadcaster.hxx>
+
+#include <editeng/editeng.hxx>
+#include <editeng/unoedsrc.hxx>
+#include <edit.hxx>
+#include <view.hxx>
+#include <memory>
+
+class SmDocShell;
+
+namespace accessibility { class AccessibleTextHelper; }
+
+// classes and helper-classes used for accessibility in the graphic-window
+
+
+typedef
+cppu::WeakImplHelper
+    <
+        css::lang::XServiceInfo,
+        css::accessibility::XAccessible,
+        css::accessibility::XAccessibleComponent,
+        css::accessibility::XAccessibleContext,
+        css::accessibility::XAccessibleText,
+        css::accessibility::XAccessibleEventBroadcaster
+    >
+SmGraphicAccessibleBaseClass;
+
+class SmGraphicAccessible final :
+    public SmGraphicAccessibleBaseClass
+{
+    OUString                            aAccName;
+    /// client id in the AccessibleEventNotifier queue
+    sal_uInt32                          nClientId;
+
+    VclPtr<SmGraphicWindow>             pWin;
+
+    SmGraphicAccessible( const SmGraphicAccessible & ) = delete;
+    SmGraphicAccessible & operator = ( const SmGraphicAccessible & ) = delete;
+
+    SmDocShell *    GetDoc_Impl();
+    OUString        GetAccessibleText_Impl();
+
+public:
+    explicit SmGraphicAccessible( SmGraphicWindow *pGraphicWin );
+    virtual ~SmGraphicAccessible() override;
+
+    void                ClearWin();     // to be called when view is destroyed
+    void                LaunchEvent(
+                            const sal_Int16 nAccessibleEventId,
+                            const css::uno::Any &rOldVal,
+                            const css::uno::Any &rNewVal);
+
+    // XAccessible
+    virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) override;
+
+    // XAccessibleComponent
+    virtual sal_Bool SAL_CALL containsPoint( const css::awt::Point& aPoint ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) override;
+    virtual css::awt::Rectangle SAL_CALL getBounds(  ) override;
+    virtual css::awt::Point SAL_CALL getLocation(  ) override;
+    virtual css::awt::Point SAL_CALL getLocationOnScreen(  ) override;
+    virtual css::awt::Size SAL_CALL getSize(  ) override;
+    virtual void SAL_CALL grabFocus(  ) override;
+    virtual sal_Int32 SAL_CALL getForeground(  ) override;
+    virtual sal_Int32 SAL_CALL getBackground(  ) override;
+
+    // XAccessibleContext
+    virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleIndexInParent(  ) override;
+    virtual sal_Int16 SAL_CALL getAccessibleRole(  ) override;
+    virtual OUString SAL_CALL getAccessibleDescription(  ) override;
+    virtual OUString SAL_CALL getAccessibleName(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessibleStateSet > SAL_CALL getAccessibleStateSet(  ) override;
+    virtual css::lang::Locale SAL_CALL getLocale(  ) override;
+
+    // XAccessibleEventBroadcaster
+    virtual void SAL_CALL addAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
+    virtual void SAL_CALL removeAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
+
+    // XAccessibleText
+    virtual sal_Int32 SAL_CALL getCaretPosition(  ) override;
+    virtual sal_Bool SAL_CALL setCaretPosition ( sal_Int32 nIndex ) override;
+    virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) override;
+    virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& aRequestedAttributes ) override;
+    virtual css::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) override;
+    virtual sal_Int32 SAL_CALL getCharacterCount(  ) override;
+    virtual sal_Int32 SAL_CALL getIndexAtPoint( const css::awt::Point& aPoint ) override;
+    virtual OUString SAL_CALL getSelectedText(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectionStart(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectionEnd(  ) override;
+    virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual OUString SAL_CALL getText(  ) override;
+    virtual OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual sal_Bool SAL_CALL scrollSubstringTo( sal_Int32 nStartIndex, sal_Int32 nEndIndex, css::accessibility::AccessibleScrollType aScrollType) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName(  ) override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+};
+
+
+// classes and helper-classes used for accessibility in the command-window
+
+
+class SmEditAccessible;
+class SmEditSource;
+class EditView;
+class SvxFieldItem;
+
+
+class SmViewForwarder :
+    public SvxViewForwarder
+{
+    SmEditAccessible &          rEditAcc;
+
+    SmViewForwarder( const SmViewForwarder & ) = delete;
+    SmViewForwarder & operator = ( const SmViewForwarder & ) = delete;
+
+public:
+    explicit SmViewForwarder( SmEditAccessible &rAcc );
+    virtual             ~SmViewForwarder() override;
+
+    virtual bool        IsValid() const override;
+    virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
+    virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;
+};
+
+
+class SmTextForwarder :     /* analog to SvxEditEngineForwarder */
+    public SvxTextForwarder
+{
+    SmEditAccessible &  rEditAcc;
+    SmEditSource &      rEditSource;
+
+    DECL_LINK( NotifyHdl, EENotify&, void );
+
+    SmTextForwarder( const SmTextForwarder & ) = delete;
+    SmTextForwarder & operator = ( const SmTextForwarder & ) = delete;
+
+public:
+    SmTextForwarder( SmEditAccessible& rAcc, SmEditSource & rSource );
+    virtual ~SmTextForwarder() override;
+
+    virtual sal_Int32   GetParagraphCount() const override;
+    virtual sal_Int32   GetTextLen( sal_Int32 nParagraph ) const override;
+    virtual OUString    GetText( const ESelection& rSel ) const override;
+    virtual SfxItemSet  GetAttribs( const ESelection& rSel, EditEngineAttribs nOnlyHardAttrib = EditEngineAttribs::All ) const override;
+    virtual SfxItemSet  GetParaAttribs( sal_Int32 nPara ) const override;
+    virtual void        SetParaAttribs( sal_Int32 nPara, const SfxItemSet& rSet ) override;
+    virtual void        RemoveAttribs( const ESelection& rSelection ) override;
+    virtual void        GetPortions( sal_Int32 nPara, std::vector<sal_Int32>& rList ) const override;
+
+    virtual SfxItemState  GetItemState( const ESelection& rSel, sal_uInt16 nWhich ) const override;
+    virtual SfxItemState  GetItemState( sal_Int32 nPara, sal_uInt16 nWhich ) const override;
+
+    virtual void        QuickInsertText( const OUString& rText, const ESelection& rSel ) override;
+    virtual void        QuickInsertField( const SvxFieldItem& rFld, const ESelection& rSel ) override;
+    virtual void        QuickSetAttribs( const SfxItemSet& rSet, const ESelection& rSel ) override;
+    virtual void        QuickInsertLineBreak( const ESelection& rSel ) override;
+
+    virtual SfxItemPool* GetPool() const override;
+
+    virtual OUString        CalcFieldValue( const SvxFieldItem& rField, sal_Int32 nPara, sal_Int32 nPos, std::optional<Color>& rpTxtColor, std::optional<Color>& rpFldColor ) override;
+    virtual void            FieldClicked(const SvxFieldItem&) override;
+    virtual bool            IsValid() const override;
+
+    virtual LanguageType    GetLanguage( sal_Int32, sal_Int32 ) const override;
+    virtual sal_Int32       GetFieldCount( sal_Int32 nPara ) const override;
+    virtual EFieldInfo      GetFieldInfo( sal_Int32 nPara, sal_uInt16 nField ) const override;
+    virtual EBulletInfo     GetBulletInfo( sal_Int32 nPara ) const override;
+    virtual tools::Rectangle       GetCharBounds( sal_Int32 nPara, sal_Int32 nIndex ) const override;
+    virtual tools::Rectangle       GetParaBounds( sal_Int32 nPara ) const override;
+    virtual MapMode         GetMapMode() const override;
+    virtual OutputDevice*   GetRefDevice() const override;
+    virtual bool            GetIndexAtPoint( const Point&, sal_Int32& nPara, sal_Int32& nIndex ) const override;
+    virtual bool            GetWordIndices( sal_Int32 nPara, sal_Int32 nIndex, sal_Int32& nStart, sal_Int32& nEnd ) const override;
+    virtual bool            GetAttributeRun( sal_Int32& nStartIndex, sal_Int32& nEndIndex, sal_Int32 nPara, sal_Int32 nIndex, bool bInCell = false ) const override;
+    virtual sal_Int32       GetLineCount( sal_Int32 nPara ) const override;
+    virtual sal_Int32       GetLineLen( sal_Int32 nPara, sal_Int32 nLine ) const override;
+    virtual void            GetLineBoundaries( /*out*/sal_Int32 &rStart, /*out*/sal_Int32 &rEnd, sal_Int32 nParagraph, sal_Int32 nLine ) const override;
+    virtual sal_Int32       GetLineNumberAtIndex( sal_Int32 nPara, sal_Int32 nLine ) const override;
+    virtual bool            Delete( const ESelection& ) override;
+    virtual bool            InsertText( const OUString&, const ESelection& ) override;
+    virtual bool            QuickFormatDoc( bool bFull = false ) override;
+
+    virtual sal_Int16       GetDepth( sal_Int32 nPara ) const override;
+    virtual bool            SetDepth( sal_Int32 nPara, sal_Int16 nNewDepth ) override;
+
+    virtual const SfxItemSet*   GetEmptyItemSetPtr() override;
+    // implementation functions for XParagraphAppend and XTextPortionAppend
+    virtual void        AppendParagraph() override;
+    virtual sal_Int32   AppendTextPortion( sal_Int32 nPara, const OUString &rText, const SfxItemSet &rSet ) override;
+
+    virtual void        CopyText(const SvxTextForwarder& rSource) override;
+};
+
+
+class SmEditViewForwarder :     /* analog to SvxEditEngineViewForwarder */
+    public SvxEditViewForwarder
+{
+    SmEditAccessible&       rEditAcc;
+
+    SmEditViewForwarder( const SmEditViewForwarder & ) = delete;
+    SmEditViewForwarder & operator = ( const SmEditViewForwarder & ) = delete;
+
+public:
+    explicit SmEditViewForwarder( SmEditAccessible& rAcc );
+    virtual             ~SmEditViewForwarder() override;
+
+    virtual bool        IsValid() const override;
+
+    virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
+    virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;
+
+    virtual bool        GetSelection( ESelection& rSelection ) const override;
+    virtual bool        SetSelection( const ESelection& rSelection ) override;
+    virtual bool        Copy() override;
+    virtual bool        Cut() override;
+    virtual bool        Paste() override;
+};
+
+
+class SmEditSource :
+    public SvxEditSource
+{
+    SfxBroadcaster          aBroadCaster;
+    SmViewForwarder         aViewFwd;
+    SmTextForwarder         aTextFwd;
+    SmEditViewForwarder     aEditViewFwd;
+
+    SmEditAccessible&       rEditAcc;
+
+    SmEditSource( const SmEditSource &rSrc );
+    SmEditSource & operator = ( const SmEditSource & ) = delete;
+
+public:
+            SmEditSource( SmEditAccessible &rAcc );
+    virtual ~SmEditSource() override;
+
+    virtual std::unique_ptr<SvxEditSource> Clone() const override;
+    virtual SvxTextForwarder*   GetTextForwarder() override;
+    virtual SvxViewForwarder*  GetViewForwarder() override;
+    virtual SvxEditViewForwarder*  GetEditViewForwarder( bool bCreate = false ) override;
+    virtual void                UpdateData() override;
+    virtual SfxBroadcaster&     GetBroadcaster() const override;
+};
+
+
+typedef
+cppu::WeakImplHelper
+    <
+        css::lang::XServiceInfo,
+        css::accessibility::XAccessible,
+        css::accessibility::XAccessibleComponent,
+        css::accessibility::XAccessibleContext,
+        css::accessibility::XAccessibleEventBroadcaster
+    >
+SmEditAccessibleBaseClass;
+
+class SmEditAccessible :
+    public SmEditAccessibleBaseClass
+{
+    OUString                                aAccName;
+    std::unique_ptr<::accessibility::AccessibleTextHelper> pTextHelper;
+    VclPtr<SmEditWindow>                    pWin;
+
+    SmEditAccessible( const SmEditAccessible & ) = delete;
+    SmEditAccessible & operator = ( const SmEditAccessible & ) = delete;
+
+public:
+    explicit SmEditAccessible( SmEditWindow *pEditWin );
+    virtual ~SmEditAccessible() override;
+
+    ::accessibility::AccessibleTextHelper *   GetTextHelper();
+
+    void                Init();
+    void                ClearWin();     // to be called when view is destroyed
+
+    //! access EditEngine and EditView via the functions in the respective window
+    //! pointers may be 0 (e.g. during reload)
+    EditEngine * GetEditEngine()    { return pWin ? pWin->GetEditEngine() : nullptr; }
+    EditView   * GetEditView()      { return pWin ? pWin->GetEditView() : nullptr; }
+
+    // XAccessible
+    virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) override;
+
+    // XAccessibleComponent
+    virtual sal_Bool SAL_CALL containsPoint( const css::awt::Point& aPoint ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) override;
+    virtual css::awt::Rectangle SAL_CALL getBounds(  ) override;
+    virtual css::awt::Point SAL_CALL getLocation(  ) override;
+    virtual css::awt::Point SAL_CALL getLocationOnScreen(  ) override;
+    virtual css::awt::Size SAL_CALL getSize(  ) override;
+    virtual void SAL_CALL grabFocus(  ) override;
+    virtual sal_Int32 SAL_CALL getForeground(  ) override;
+    virtual sal_Int32 SAL_CALL getBackground(  ) override;
+
+    // XAccessibleContext
+    virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleIndexInParent(  ) override;
+    virtual sal_Int16 SAL_CALL getAccessibleRole(  ) override;
+    virtual OUString SAL_CALL getAccessibleDescription(  ) override;
+    virtual OUString SAL_CALL getAccessibleName(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessibleStateSet > SAL_CALL getAccessibleStateSet(  ) override;
+    virtual css::lang::Locale SAL_CALL getLocale(  ) override;
+
+    // XAccessibleEventBroadcaster
+    virtual void SAL_CALL addAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
+    virtual void SAL_CALL removeAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName(  ) override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+};
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/action.cxx b/starmath/source/action.cxx
new file mode 100644
index 000000000..37e643c85
--- /dev/null
+++ b/starmath/source/action.cxx
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <action.hxx>
+#include <document.hxx>
+#include <strings.hxx>
+
+SmFormatAction::SmFormatAction(SmDocShell *pDocSh,
+                               const SmFormat& rOldFormat,
+                               const SmFormat& rNewFormat) :
+    pDoc( pDocSh ),
+    aOldFormat( rOldFormat ),
+    aNewFormat( rNewFormat )
+{
+}
+
+void SmFormatAction::Undo()
+{
+    pDoc->SetFormat(aOldFormat);
+}
+
+void SmFormatAction::Redo()
+{
+    pDoc->SetFormat(aNewFormat);
+}
+
+void SmFormatAction::Repeat(SfxRepeatTarget& rDocSh)
+{
+    dynamic_cast< SmDocShell & >(rDocSh).SetFormat(aNewFormat);
+}
+
+OUString SmFormatAction::GetComment() const
+{
+    return RID_UNDOFORMATNAME;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/caret.cxx b/starmath/source/caret.cxx
new file mode 100644
index 000000000..4e2effaa2
--- /dev/null
+++ b/starmath/source/caret.cxx
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#include <caret.hxx>
+
+SmCaretPosGraph::SmCaretPosGraph() = default;
+
+SmCaretPosGraph::~SmCaretPosGraph() = default;
+
+SmCaretPosGraphEntry* SmCaretPosGraph::Add(SmCaretPos pos,
+                                           SmCaretPosGraphEntry* left)
+{
+    assert(pos.nIndex >= 0);
+    auto entry = std::make_unique<SmCaretPosGraphEntry>(pos, left, nullptr);
+    SmCaretPosGraphEntry* e = entry.get();
+    //Set Left and Right to point to the entry itself if they are NULL
+    entry->Left = entry->Left ? entry->Left : e;
+    entry->Right = entry->Right ? entry->Right : e;
+    mvEntries.push_back(std::move(entry));
+    return e;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/cfgitem.cxx b/starmath/source/cfgitem.cxx
new file mode 100644
index 000000000..f3c0ec3e9
--- /dev/null
+++ b/starmath/source/cfgitem.cxx
@@ -0,0 +1,1269 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <cassert>
+#include <memory>
+#include <vector>
+
+#include <svl/itemset.hxx>
+#include <svl/intitem.hxx>
+#include <svl/itempool.hxx>
+#include <svl/eitem.hxx>
+#include <svl/languageoptions.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+#include <i18nlangtag/languagetag.hxx>
+
+#include <com/sun/star/beans/PropertyValue.hpp>
+
+#include <officecfg/Office/Math.hxx>
+#include "cfgitem.hxx"
+
+#include <starmath.hrc>
+#include <smmod.hxx>
+#include <symbol.hxx>
+#include <format.hxx>
+
+using namespace com::sun::star::uno;
+using namespace com::sun::star::beans;
+
+#define SYMBOL_LIST         "SymbolList"
+#define FONT_FORMAT_LIST    "FontFormatList"
+
+static Sequence< OUString > lcl_GetFontPropertyNames()
+{
+    return Sequence< OUString > {
+                        "Name",
+                        "CharSet",
+                        "Family",
+                        "Pitch",
+                        "Weight",
+                        "Italic"
+                    };
+}
+
+static Sequence< OUString > lcl_GetSymbolPropertyNames()
+{
+    return Sequence< OUString > {
+                        "Char",
+                        "Set",
+                        "Predefined",
+                        "FontFormatId"
+                    };
+}
+
+static Sequence< OUString > lcl_GetFormatPropertyNames()
+{
+    //! Beware of order according to *_BEGIN *_END defines in format.hxx !
+    //! see respective load/save routines here
+    return Sequence< OUString > {
+                        "StandardFormat/Textmode",
+                        "StandardFormat/GreekCharStyle",
+                        "StandardFormat/ScaleNormalBracket",
+                        "StandardFormat/HorizontalAlignment",
+                        "StandardFormat/BaseSize",
+                        "StandardFormat/TextSize",
+                        "StandardFormat/IndexSize",
+                        "StandardFormat/FunctionSize",
+                        "StandardFormat/OperatorSize",
+                        "StandardFormat/LimitsSize",
+                        "StandardFormat/Distance/Horizontal",
+                        "StandardFormat/Distance/Vertical",
+                        "StandardFormat/Distance/Root",
+                        "StandardFormat/Distance/SuperScript",
+                        "StandardFormat/Distance/SubScript",
+                        "StandardFormat/Distance/Numerator",
+                        "StandardFormat/Distance/Denominator",
+                        "StandardFormat/Distance/Fraction",
+                        "StandardFormat/Distance/StrokeWidth",
+                        "StandardFormat/Distance/UpperLimit",
+                        "StandardFormat/Distance/LowerLimit",
+                        "StandardFormat/Distance/BracketSize",
+                        "StandardFormat/Distance/BracketSpace",
+                        "StandardFormat/Distance/MatrixRow",
+                        "StandardFormat/Distance/MatrixColumn",
+                        "StandardFormat/Distance/OrnamentSize",
+                        "StandardFormat/Distance/OrnamentSpace",
+                        "StandardFormat/Distance/OperatorSize",
+                        "StandardFormat/Distance/OperatorSpace",
+                        "StandardFormat/Distance/LeftSpace",
+                        "StandardFormat/Distance/RightSpace",
+                        "StandardFormat/Distance/TopSpace",
+                        "StandardFormat/Distance/BottomSpace",
+                        "StandardFormat/Distance/NormalBracketSize",
+                        "StandardFormat/VariableFont",
+                        "StandardFormat/FunctionFont",
+                        "StandardFormat/NumberFont",
+                        "StandardFormat/TextFont",
+                        "StandardFormat/SerifFont",
+                        "StandardFormat/SansFont",
+                        "StandardFormat/FixedFont"
+                    };
+}
+
+struct SmCfgOther
+{
+    SmPrintSize     ePrintSize;
+    sal_uInt16      nPrintZoomFactor;
+    bool            bPrintTitle;
+    bool            bPrintFormulaText;
+    bool            bPrintFrame;
+    bool            bIsSaveOnlyUsedSymbols;
+    bool            bIsAutoCloseBrackets;
+    bool            bIgnoreSpacesRight;
+    bool            bToolboxVisible;
+    bool            bAutoRedraw;
+    bool            bFormulaCursor;
+
+    SmCfgOther();
+};
+
+
+SmCfgOther::SmCfgOther()
+    : ePrintSize(PRINT_SIZE_NORMAL)
+    , nPrintZoomFactor(100)
+    , bPrintTitle(true)
+    , bPrintFormulaText(true)
+    , bPrintFrame(true)
+    , bIsSaveOnlyUsedSymbols(true)
+    , bIsAutoCloseBrackets(true)
+    , bIgnoreSpacesRight(true)
+    , bToolboxVisible(true)
+    , bAutoRedraw(true)
+    , bFormulaCursor(true)
+{
+}
+
+
+SmFontFormat::SmFontFormat()
+    : aName(FONTNAME_MATH)
+    , nCharSet(RTL_TEXTENCODING_UNICODE)
+    , nFamily(FAMILY_DONTKNOW)
+    , nPitch(PITCH_DONTKNOW)
+    , nWeight(WEIGHT_DONTKNOW)
+    , nItalic(ITALIC_NONE)
+{
+}
+
+
+SmFontFormat::SmFontFormat( const vcl::Font &rFont )
+    : aName(rFont.GetFamilyName())
+    , nCharSet(static_cast<sal_Int16>(rFont.GetCharSet()))
+    , nFamily(static_cast<sal_Int16>(rFont.GetFamilyType()))
+    , nPitch(static_cast<sal_Int16>(rFont.GetPitch()))
+    , nWeight(static_cast<sal_Int16>(rFont.GetWeight()))
+    , nItalic(static_cast<sal_Int16>(rFont.GetItalic()))
+{
+}
+
+
+vcl::Font SmFontFormat::GetFont() const
+{
+    vcl::Font aRes;
+    aRes.SetFamilyName( aName );
+    aRes.SetCharSet( static_cast<rtl_TextEncoding>(nCharSet) );
+    aRes.SetFamily( static_cast<FontFamily>(nFamily) );
+    aRes.SetPitch( static_cast<FontPitch>(nPitch) );
+    aRes.SetWeight( static_cast<FontWeight>(nWeight) );
+    aRes.SetItalic( static_cast<FontItalic>(nItalic) );
+    return aRes;
+}
+
+
+bool SmFontFormat::operator == ( const SmFontFormat &rFntFmt ) const
+{
+    return  aName    == rFntFmt.aName       &&
+            nCharSet == rFntFmt.nCharSet    &&
+            nFamily  == rFntFmt.nFamily     &&
+            nPitch   == rFntFmt.nPitch      &&
+            nWeight  == rFntFmt.nWeight     &&
+            nItalic  == rFntFmt.nItalic;
+}
+
+
+SmFntFmtListEntry::SmFntFmtListEntry( const OUString &rId, const SmFontFormat &rFntFmt ) :
+    aId     (rId),
+    aFntFmt (rFntFmt)
+{
+}
+
+
+SmFontFormatList::SmFontFormatList()
+    : bModified(false)
+{
+}
+
+
+void SmFontFormatList::Clear()
+{
+    if (!aEntries.empty())
+    {
+        aEntries.clear();
+        SetModified( true );
+    }
+}
+
+
+void SmFontFormatList::AddFontFormat( const OUString &rFntFmtId,
+        const SmFontFormat &rFntFmt )
+{
+    const SmFontFormat *pFntFmt = GetFontFormat( rFntFmtId );
+    OSL_ENSURE( !pFntFmt, "FontFormatId already exists" );
+    if (!pFntFmt)
+    {
+        SmFntFmtListEntry aEntry( rFntFmtId, rFntFmt );
+        aEntries.push_back( aEntry );
+        SetModified( true );
+    }
+}
+
+
+void SmFontFormatList::RemoveFontFormat( const OUString &rFntFmtId )
+{
+
+    // search for entry
+    for (size_t i = 0;  i < aEntries.size();  ++i)
+    {
+        if (aEntries[i].aId == rFntFmtId)
+        {
+            // remove entry if found
+            aEntries.erase( aEntries.begin() + i );
+            SetModified( true );
+            break;
+        }
+    }
+}
+
+
+const SmFontFormat * SmFontFormatList::GetFontFormat( const OUString &rFntFmtId ) const
+{
+    const SmFontFormat *pRes = nullptr;
+
+    for (const auto & rEntry : aEntries)
+    {
+        if (rEntry.aId == rFntFmtId)
+        {
+            pRes = &rEntry.aFntFmt;
+            break;
+        }
+    }
+
+    return pRes;
+}
+
+
+const SmFontFormat * SmFontFormatList::GetFontFormat( size_t nPos ) const
+{
+    const SmFontFormat *pRes = nullptr;
+    if (nPos < aEntries.size())
+        pRes = &aEntries[nPos].aFntFmt;
+    return pRes;
+}
+
+
+OUString SmFontFormatList::GetFontFormatId( const SmFontFormat &rFntFmt ) const
+{
+    OUString aRes;
+
+    for (const auto & rEntry : aEntries)
+    {
+        if (rEntry.aFntFmt == rFntFmt)
+        {
+            aRes = rEntry.aId;
+            break;
+        }
+    }
+
+    return aRes;
+}
+
+
+OUString SmFontFormatList::GetFontFormatId( const SmFontFormat &rFntFmt, bool bAdd )
+{
+    OUString aRes( GetFontFormatId( rFntFmt) );
+    if (aRes.isEmpty()  &&  bAdd)
+    {
+        aRes = GetNewFontFormatId();
+        AddFontFormat( aRes, rFntFmt );
+    }
+    return aRes;
+}
+
+
+OUString SmFontFormatList::GetFontFormatId( size_t nPos ) const
+{
+    OUString aRes;
+    if (nPos < aEntries.size())
+        aRes = aEntries[nPos].aId;
+    return aRes;
+}
+
+
+OUString SmFontFormatList::GetNewFontFormatId() const
+{
+    // returns first unused FormatId
+
+    sal_Int32 nCnt = GetCount();
+    for (sal_Int32 i = 1;  i <= nCnt + 1;  ++i)
+    {
+        OUString aTmpId = "Id" + OUString::number(i);
+        if (!GetFontFormat(aTmpId))
+            return aTmpId;
+    }
+    OSL_ENSURE( false, "failed to create new FontFormatId" );
+
+    return OUString();
+}
+
+
+SmMathConfig::SmMathConfig() :
+    ConfigItem("Office.Math")
+    , pFormat()
+    , pOther()
+    , pFontFormatList()
+    , pSymbolMgr()
+    , bIsOtherModified(false)
+    , bIsFormatModified(false)
+{
+}
+
+
+SmMathConfig::~SmMathConfig()
+{
+    Save();
+}
+
+
+void SmMathConfig::SetOtherModified( bool bVal )
+{
+    bIsOtherModified = bVal;
+}
+
+
+void SmMathConfig::SetFormatModified( bool bVal )
+{
+    bIsFormatModified = bVal;
+}
+
+
+void SmMathConfig::ReadSymbol( SmSym &rSymbol,
+                        const OUString &rSymbolName,
+                        const OUString &rBaseNode ) const
+{
+    Sequence< OUString > aNames = lcl_GetSymbolPropertyNames();
+    sal_Int32 nProps = aNames.getLength();
+
+    OUString aDelim( "/" );
+    for (auto& rName : aNames)
+        rName = rBaseNode + aDelim + rSymbolName + aDelim + rName;
+
+    const Sequence< Any > aValues = const_cast<SmMathConfig*>(this)->GetProperties(aNames);
+
+    if (!(nProps  &&  aValues.getLength() == nProps))
+        return;
+
+    const Any * pValue = aValues.getConstArray();
+    vcl::Font   aFont;
+    sal_UCS4    cChar = '\0';
+    OUString    aSet;
+    bool        bPredefined = false;
+
+    OUString    aTmpStr;
+    sal_Int32       nTmp32 = 0;
+    bool        bTmp = false;
+
+    bool bOK = true;
+    if (pValue->hasValue()  &&  (*pValue >>= nTmp32))
+        cChar = static_cast< sal_UCS4 >( nTmp32 );
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= aTmpStr))
+        aSet = aTmpStr;
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= bTmp))
+        bPredefined = bTmp;
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= aTmpStr))
+    {
+        const SmFontFormat *pFntFmt = GetFontFormatList().GetFontFormat( aTmpStr );
+        OSL_ENSURE( pFntFmt, "unknown FontFormat" );
+        if (pFntFmt)
+            aFont = pFntFmt->GetFont();
+    }
+    else
+        bOK = false;
+    ++pValue;
+
+    if (bOK)
+    {
+        OUString aUiName( rSymbolName );
+        OUString aUiSetName( aSet );
+        if (bPredefined)
+        {
+            OUString aTmp;
+            aTmp = SmLocalizedSymbolData::GetUiSymbolName( rSymbolName );
+            OSL_ENSURE( !aTmp.isEmpty(), "localized symbol-name not found" );
+            if (!aTmp.isEmpty())
+                aUiName = aTmp;
+            aTmp = SmLocalizedSymbolData::GetUiSymbolSetName( aSet );
+            OSL_ENSURE( !aTmp.isEmpty(), "localized symbolset-name not found" );
+            if (!aTmp.isEmpty())
+                aUiSetName = aTmp;
+        }
+
+        rSymbol = SmSym( aUiName, aFont, cChar, aUiSetName, bPredefined );
+        if (aUiName != rSymbolName)
+            rSymbol.SetExportName( rSymbolName );
+    }
+    else
+    {
+        SAL_WARN("starmath", "symbol read error");
+    }
+}
+
+
+SmSymbolManager & SmMathConfig::GetSymbolManager()
+{
+    if (!pSymbolMgr)
+    {
+        pSymbolMgr.reset(new SmSymbolManager);
+        pSymbolMgr->Load();
+    }
+    return *pSymbolMgr;
+}
+
+
+void SmMathConfig::ImplCommit()
+{
+    Save();
+}
+
+
+void SmMathConfig::Save()
+{
+    SaveOther();
+    SaveFormat();
+    SaveFontFormatList();
+}
+
+
+void SmMathConfig::GetSymbols( std::vector< SmSym > &rSymbols ) const
+{
+    Sequence< OUString > aNodes(const_cast<SmMathConfig*>(this)->GetNodeNames(SYMBOL_LIST));
+    const OUString *pNode = aNodes.getConstArray();
+    sal_Int32 nNodes = aNodes.getLength();
+
+    rSymbols.resize( nNodes );
+    for (auto& rSymbol : rSymbols)
+    {
+        ReadSymbol( rSymbol, *pNode++, SYMBOL_LIST );
+    }
+}
+
+
+void SmMathConfig::SetSymbols( const std::vector< SmSym > &rNewSymbols )
+{
+    auto nCount = sal::static_int_cast<sal_Int32>(rNewSymbols.size());
+
+    Sequence< OUString > aNames = lcl_GetSymbolPropertyNames();
+    const OUString *pNames = aNames.getConstArray();
+    sal_Int32 nSymbolProps = aNames.getLength();
+
+    Sequence< PropertyValue > aValues( nCount * nSymbolProps );
+    PropertyValue *pValues = aValues.getArray();
+
+    PropertyValue *pVal = pValues;
+    OUString aDelim( "/" );
+    for (const SmSym& rSymbol : rNewSymbols)
+    {
+        OUString  aNodeNameDelim = SYMBOL_LIST +
+            aDelim +
+            rSymbol.GetExportName() +
+            aDelim;
+
+        const OUString *pName = pNames;
+
+        // Char
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= rSymbol.GetCharacter();
+        pVal++;
+        // Set
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        OUString aTmp( rSymbol.GetSymbolSetName() );
+        if (rSymbol.IsPredefined())
+            aTmp = SmLocalizedSymbolData::GetExportSymbolSetName( aTmp );
+        pVal->Value <<= aTmp;
+        pVal++;
+        // Predefined
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= rSymbol.IsPredefined();
+        pVal++;
+        // FontFormatId
+        SmFontFormat aFntFmt( rSymbol.GetFace() );
+        OUString aFntFmtId( GetFontFormatList().GetFontFormatId( aFntFmt, true ) );
+        OSL_ENSURE( !aFntFmtId.isEmpty(), "FontFormatId not found" );
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmtId;
+        pVal++;
+    }
+    OSL_ENSURE( pVal - pValues == sal::static_int_cast< ptrdiff_t >(nCount * nSymbolProps), "properties missing" );
+    ReplaceSetProperties( SYMBOL_LIST, aValues );
+
+    StripFontFormatList( rNewSymbols );
+    SaveFontFormatList();
+}
+
+
+SmFontFormatList & SmMathConfig::GetFontFormatList()
+{
+    if (!pFontFormatList)
+    {
+        LoadFontFormatList();
+    }
+    return *pFontFormatList;
+}
+
+
+void SmMathConfig::LoadFontFormatList()
+{
+    if (!pFontFormatList)
+        pFontFormatList.reset(new SmFontFormatList);
+    else
+        pFontFormatList->Clear();
+
+    const Sequence< OUString > aNodes( GetNodeNames( FONT_FORMAT_LIST ) );
+
+    for (const OUString& rNode : aNodes)
+    {
+        SmFontFormat aFntFmt;
+        ReadFontFormat( aFntFmt, rNode, FONT_FORMAT_LIST );
+        if (!pFontFormatList->GetFontFormat( rNode ))
+            pFontFormatList->AddFontFormat( rNode, aFntFmt );
+    }
+    pFontFormatList->SetModified( false );
+}
+
+
+void SmMathConfig::ReadFontFormat( SmFontFormat &rFontFormat,
+        const OUString &rSymbolName, const OUString &rBaseNode ) const
+{
+    Sequence< OUString > aNames = lcl_GetFontPropertyNames();
+    sal_Int32 nProps = aNames.getLength();
+
+    OUString aDelim( "/" );
+    for (auto& rName : aNames)
+        rName = rBaseNode + aDelim + rSymbolName + aDelim + rName;
+
+    const Sequence< Any > aValues = const_cast<SmMathConfig*>(this)->GetProperties(aNames);
+
+    if (!(nProps  &&  aValues.getLength() == nProps))
+        return;
+
+    const Any * pValue = aValues.getConstArray();
+
+    OUString    aTmpStr;
+    sal_Int16       nTmp16 = 0;
+
+    bool bOK = true;
+    if (pValue->hasValue()  &&  (*pValue >>= aTmpStr))
+        rFontFormat.aName = aTmpStr;
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= nTmp16))
+        rFontFormat.nCharSet = nTmp16; // 6.0 file-format GetSOLoadTextEncoding not needed
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= nTmp16))
+        rFontFormat.nFamily = nTmp16;
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= nTmp16))
+        rFontFormat.nPitch = nTmp16;
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= nTmp16))
+        rFontFormat.nWeight = nTmp16;
+    else
+        bOK = false;
+    ++pValue;
+    if (pValue->hasValue()  &&  (*pValue >>= nTmp16))
+        rFontFormat.nItalic = nTmp16;
+    else
+        bOK = false;
+    ++pValue;
+
+    OSL_ENSURE( bOK, "read FontFormat failed" );
+}
+
+
+void SmMathConfig::SaveFontFormatList()
+{
+    SmFontFormatList &rFntFmtList = GetFontFormatList();
+
+    if (!rFntFmtList.IsModified())
+        return;
+
+    Sequence< OUString > aNames = lcl_GetFontPropertyNames();
+    sal_Int32 nSymbolProps = aNames.getLength();
+
+    size_t nCount = rFntFmtList.GetCount();
+
+    Sequence< PropertyValue > aValues( nCount * nSymbolProps );
+    PropertyValue *pValues = aValues.getArray();
+
+    PropertyValue *pVal = pValues;
+    OUString aDelim( "/" );
+    for (size_t i = 0;  i < nCount;  ++i)
+    {
+        OUString aFntFmtId(rFntFmtList.GetFontFormatId(i));
+        const SmFontFormat *pFntFmt = rFntFmtList.GetFontFormat(i);
+        assert(pFntFmt);
+        const SmFontFormat aFntFmt(*pFntFmt);
+
+        OUString  aNodeNameDelim = FONT_FORMAT_LIST +
+            aDelim +
+            aFntFmtId +
+            aDelim;
+
+        const OUString *pName = aNames.getConstArray();
+
+        // Name
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmt.aName;
+        pVal++;
+        // CharSet
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmt.nCharSet; // 6.0 file-format GetSOStoreTextEncoding not needed
+        pVal++;
+        // Family
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmt.nFamily;
+        pVal++;
+        // Pitch
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmt.nPitch;
+        pVal++;
+        // Weight
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmt.nWeight;
+        pVal++;
+        // Italic
+        pVal->Name  = aNodeNameDelim;
+        pVal->Name += *pName++;
+        pVal->Value <<= aFntFmt.nItalic;
+        pVal++;
+    }
+    OSL_ENSURE( sal::static_int_cast<size_t>(pVal - pValues) == nCount * nSymbolProps, "properties missing" );
+    ReplaceSetProperties( FONT_FORMAT_LIST, aValues );
+
+    rFntFmtList.SetModified( false );
+}
+
+
+void SmMathConfig::StripFontFormatList( const std::vector< SmSym > &rSymbols )
+{
+    size_t i;
+
+    // build list of used font-formats only
+    //!! font-format IDs may be different !!
+    SmFontFormatList aUsedList;
+    for (i = 0;  i < rSymbols.size();  ++i)
+    {
+        OSL_ENSURE( rSymbols[i].GetName().getLength() > 0, "non named symbol" );
+        aUsedList.GetFontFormatId( SmFontFormat( rSymbols[i].GetFace() ) , true );
+    }
+    const SmFormat & rStdFmt = GetStandardFormat();
+    for (i = FNT_BEGIN;  i <= FNT_END;  ++i)
+    {
+        aUsedList.GetFontFormatId( SmFontFormat( rStdFmt.GetFont( i ) ) , true );
+    }
+
+    // remove unused font-formats from list
+    SmFontFormatList &rFntFmtList = GetFontFormatList();
+    size_t nCnt = rFntFmtList.GetCount();
+    std::unique_ptr<SmFontFormat[]> pTmpFormat(new SmFontFormat[ nCnt ]);
+    std::unique_ptr<OUString[]> pId(new OUString[ nCnt ]);
+    size_t k;
+    for (k = 0;  k < nCnt;  ++k)
+    {
+        pTmpFormat[k] = *rFntFmtList.GetFontFormat( k );
+        pId[k]     = rFntFmtList.GetFontFormatId( k );
+    }
+    for (k = 0;  k < nCnt;  ++k)
+    {
+        if (aUsedList.GetFontFormatId( pTmpFormat[k] ).isEmpty())
+        {
+            rFntFmtList.RemoveFontFormat( pId[k] );
+        }
+    }
+}
+
+
+void SmMathConfig::LoadOther()
+{
+    if (!pOther)
+        pOther.reset(new SmCfgOther);
+
+    pOther->bPrintTitle = officecfg::Office::Math::Print::Title::get();
+    pOther->bPrintFormulaText = officecfg::Office::Math::Print::FormulaText::get();
+    pOther->bPrintFrame = officecfg::Office::Math::Print::Frame::get();
+    pOther->ePrintSize = static_cast<SmPrintSize>(officecfg::Office::Math::Print::Size::get());
+    pOther->nPrintZoomFactor = officecfg::Office::Math::Print::ZoomFactor::get();
+    pOther->bIsSaveOnlyUsedSymbols = officecfg::Office::Math::LoadSave::IsSaveOnlyUsedSymbols::get();
+    pOther->bIsAutoCloseBrackets = officecfg::Office::Math::Misc::AutoCloseBrackets::get();
+    pOther->bIgnoreSpacesRight = officecfg::Office::Math::Misc::IgnoreSpacesRight::get();
+    pOther->bToolboxVisible = officecfg::Office::Math::View::ToolboxVisible::get();
+    pOther->bAutoRedraw = officecfg::Office::Math::View::AutoRedraw::get();
+    pOther->bFormulaCursor = officecfg::Office::Math::View::FormulaCursor::get();
+    SetOtherModified( false );
+}
+
+
+void SmMathConfig::SaveOther()
+{
+    if (!pOther || !IsOtherModified())
+        return;
+
+    std::shared_ptr<comphelper::ConfigurationChanges> batch(comphelper::ConfigurationChanges::create());
+
+    officecfg::Office::Math::Print::Title::set(pOther->bPrintTitle, batch);
+    officecfg::Office::Math::Print::FormulaText::set(pOther->bPrintFormulaText, batch);
+    officecfg::Office::Math::Print::Frame::set(pOther->bPrintFrame, batch);
+    officecfg::Office::Math::Print::Size::set(pOther->ePrintSize, batch);
+    officecfg::Office::Math::Print::ZoomFactor::set(pOther->nPrintZoomFactor, batch);
+    officecfg::Office::Math::LoadSave::IsSaveOnlyUsedSymbols::set(pOther->bIsSaveOnlyUsedSymbols, batch);
+    officecfg::Office::Math::Misc::AutoCloseBrackets::set(pOther->bIsAutoCloseBrackets, batch);
+    officecfg::Office::Math::Misc::IgnoreSpacesRight::set(pOther->bIgnoreSpacesRight, batch);
+    officecfg::Office::Math::View::ToolboxVisible::set(pOther->bToolboxVisible, batch);
+    officecfg::Office::Math::View::AutoRedraw::set(pOther->bAutoRedraw, batch);
+    officecfg::Office::Math::View::FormulaCursor::set(pOther->bFormulaCursor, batch);
+
+    batch->commit();
+    SetOtherModified( false );
+}
+
+namespace {
+
+// Latin default-fonts
+const DefaultFontType aLatinDefFnts[FNT_END] =
+{
+    DefaultFontType::SERIF,  // FNT_VARIABLE
+    DefaultFontType::SERIF,  // FNT_FUNCTION
+    DefaultFontType::SERIF,  // FNT_NUMBER
+    DefaultFontType::SERIF,  // FNT_TEXT
+    DefaultFontType::SERIF,  // FNT_SERIF
+    DefaultFontType::SANS,   // FNT_SANS
+    DefaultFontType::FIXED   // FNT_FIXED
+    //OpenSymbol,    // FNT_MATH
+};
+
+// CJK default-fonts
+//! we use non-asian fonts for variables, functions and numbers since they
+//! look better and even in asia only latin letters will be used for those.
+//! At least that's what I was told...
+const DefaultFontType aCJKDefFnts[FNT_END] =
+{
+    DefaultFontType::SERIF,          // FNT_VARIABLE
+    DefaultFontType::SERIF,          // FNT_FUNCTION
+    DefaultFontType::SERIF,          // FNT_NUMBER
+    DefaultFontType::CJK_TEXT,       // FNT_TEXT
+    DefaultFontType::CJK_TEXT,       // FNT_SERIF
+    DefaultFontType::CJK_DISPLAY,    // FNT_SANS
+    DefaultFontType::CJK_TEXT        // FNT_FIXED
+    //OpenSymbol,    // FNT_MATH
+};
+
+// CTL default-fonts
+const DefaultFontType aCTLDefFnts[FNT_END] =
+{
+    DefaultFontType::CTL_TEXT,    // FNT_VARIABLE
+    DefaultFontType::CTL_TEXT,    // FNT_FUNCTION
+    DefaultFontType::CTL_TEXT,    // FNT_NUMBER
+    DefaultFontType::CTL_TEXT,    // FNT_TEXT
+    DefaultFontType::CTL_TEXT,    // FNT_SERIF
+    DefaultFontType::CTL_TEXT,    // FNT_SANS
+    DefaultFontType::CTL_TEXT     // FNT_FIXED
+    //OpenSymbol,    // FNT_MATH
+};
+
+
+OUString lcl_GetDefaultFontName( LanguageType nLang, sal_uInt16 nIdent )
+{
+    assert(nIdent < FNT_END);
+    const DefaultFontType *pTable;
+    switch ( SvtLanguageOptions::GetScriptTypeOfLanguage( nLang ) )
+    {
+        case SvtScriptType::LATIN :     pTable = aLatinDefFnts; break;
+        case SvtScriptType::ASIAN :     pTable = aCJKDefFnts; break;
+        case SvtScriptType::COMPLEX :   pTable = aCTLDefFnts; break;
+        default :
+            pTable = aLatinDefFnts;
+            SAL_WARN("starmath", "unknown script-type");
+    }
+
+    return OutputDevice::GetDefaultFont(pTable[ nIdent ], nLang,
+                                        GetDefaultFontFlags::OnlyOne ).GetFamilyName();
+}
+
+}
+
+
+void SmMathConfig::LoadFormat()
+{
+    if (!pFormat)
+        pFormat.reset(new SmFormat);
+
+
+    Sequence< OUString > aNames = lcl_GetFormatPropertyNames();
+
+    sal_Int32 nProps = aNames.getLength();
+
+    Sequence< Any > aValues( GetProperties( aNames ) );
+    if (!(nProps  &&  aValues.getLength() == nProps))
+        return;
+
+    const Any *pValues = aValues.getConstArray();
+    const Any *pVal = pValues;
+
+    OUString    aTmpStr;
+    sal_Int16       nTmp16 = 0;
+    bool        bTmp = false;
+
+    // StandardFormat/Textmode
+    if (pVal->hasValue()  &&  (*pVal >>= bTmp))
+        pFormat->SetTextmode( bTmp );
+    ++pVal;
+    // StandardFormat/GreekCharStyle
+    if (pVal->hasValue()  &&  (*pVal >>= nTmp16))
+        pFormat->SetGreekCharStyle( nTmp16 );
+    ++pVal;
+    // StandardFormat/ScaleNormalBracket
+    if (pVal->hasValue()  &&  (*pVal >>= bTmp))
+        pFormat->SetScaleNormalBrackets( bTmp );
+    ++pVal;
+    // StandardFormat/HorizontalAlignment
+    if (pVal->hasValue()  &&  (*pVal >>= nTmp16))
+        pFormat->SetHorAlign( static_cast<SmHorAlign>(nTmp16) );
+    ++pVal;
+    // StandardFormat/BaseSize
+    if (pVal->hasValue()  &&  (*pVal >>= nTmp16))
+        pFormat->SetBaseSize( Size(0, SmPtsTo100th_mm( nTmp16 )) );
+    ++pVal;
+
+    sal_uInt16 i;
+    for (i = SIZ_BEGIN;  i <= SIZ_END;  ++i)
+    {
+        if (pVal->hasValue()  &&  (*pVal >>= nTmp16))
+            pFormat->SetRelSize( i, nTmp16 );
+        ++pVal;
+    }
+
+    for (i = DIS_BEGIN;  i <= DIS_END;  ++i)
+    {
+        if (pVal->hasValue()  &&  (*pVal >>= nTmp16))
+            pFormat->SetDistance( i, nTmp16 );
+        ++pVal;
+    }
+
+    LanguageType nLang = Application::GetSettings().GetUILanguageTag().getLanguageType();
+    for (i = FNT_BEGIN;  i < FNT_END;  ++i)
+    {
+        vcl::Font aFnt;
+        bool bUseDefaultFont = true;
+        if (pVal->hasValue()  &&  (*pVal >>= aTmpStr))
+        {
+            bUseDefaultFont = aTmpStr.isEmpty();
+            if (bUseDefaultFont)
+            {
+                aFnt = pFormat->GetFont( i );
+                aFnt.SetFamilyName( lcl_GetDefaultFontName( nLang, i ) );
+            }
+            else
+            {
+                const SmFontFormat *pFntFmt = GetFontFormatList().GetFontFormat( aTmpStr );
+                OSL_ENSURE( pFntFmt, "unknown FontFormat" );
+                if (pFntFmt)
+                    aFnt = pFntFmt->GetFont();
+            }
+        }
+        ++pVal;
+
+        aFnt.SetFontSize( pFormat->GetBaseSize() );
+        pFormat->SetFont( i, aFnt, bUseDefaultFont );
+    }
+
+    OSL_ENSURE( pVal - pValues == nProps, "property mismatch" );
+    SetFormatModified( false );
+}
+
+
+void SmMathConfig::SaveFormat()
+{
+    if (!pFormat || !IsFormatModified())
+        return;
+
+    const Sequence< OUString > aNames = lcl_GetFormatPropertyNames();
+    sal_Int32 nProps = aNames.getLength();
+
+    Sequence< Any > aValues( nProps );
+    Any *pValues = aValues.getArray();
+    Any *pValue  = pValues;
+
+    // StandardFormat/Textmode
+    *pValue++ <<= pFormat->IsTextmode();
+    // StandardFormat/GreekCharStyle
+    *pValue++ <<= pFormat->GetGreekCharStyle();
+    // StandardFormat/ScaleNormalBracket
+    *pValue++ <<= pFormat->IsScaleNormalBrackets();
+    // StandardFormat/HorizontalAlignment
+    *pValue++ <<= static_cast<sal_Int16>(pFormat->GetHorAlign());
+    // StandardFormat/BaseSize
+    *pValue++ <<= static_cast<sal_Int16>(SmRoundFraction( Sm100th_mmToPts(
+                                    pFormat->GetBaseSize().Height() ) ));
+
+    sal_uInt16 i;
+    for (i = SIZ_BEGIN;  i <= SIZ_END;  ++i)
+        *pValue++ <<= static_cast<sal_Int16>(pFormat->GetRelSize( i ));
+
+    for (i = DIS_BEGIN;  i <= DIS_END;  ++i)
+        *pValue++ <<= static_cast<sal_Int16>(pFormat->GetDistance( i ));
+
+    for (i = FNT_BEGIN;  i < FNT_END;  ++i)
+    {
+        OUString aFntFmtId;
+
+        if (!pFormat->IsDefaultFont( i ))
+        {
+            SmFontFormat aFntFmt( pFormat->GetFont( i ) );
+            aFntFmtId = GetFontFormatList().GetFontFormatId( aFntFmt, true );
+            OSL_ENSURE( !aFntFmtId.isEmpty(), "FontFormatId not found" );
+        }
+
+        *pValue++ <<= aFntFmtId;
+    }
+
+    OSL_ENSURE( pValue - pValues == nProps, "property mismatch" );
+    PutProperties( aNames , aValues );
+
+    SetFormatModified( false );
+}
+
+
+const SmFormat & SmMathConfig::GetStandardFormat() const
+{
+    if (!pFormat)
+        const_cast<SmMathConfig*>(this)->LoadFormat();
+    return *pFormat;
+}
+
+
+void SmMathConfig::SetStandardFormat( const SmFormat &rFormat, bool bSaveFontFormatList )
+{
+    if (!pFormat)
+        LoadFormat();
+    if (rFormat == *pFormat)
+        return;
+
+    *pFormat = rFormat;
+    SetFormatModified( true );
+    SaveFormat();
+
+    if (bSaveFontFormatList)
+    {
+        // needed for SmFontTypeDialog's DefaultButtonClickHdl
+        if (pFontFormatList)
+            pFontFormatList->SetModified( true );
+        SaveFontFormatList();
+    }
+}
+
+
+SmPrintSize SmMathConfig::GetPrintSize() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->ePrintSize;
+}
+
+
+void SmMathConfig::SetPrintSize( SmPrintSize eSize )
+{
+    if (!pOther)
+        LoadOther();
+    if (eSize != pOther->ePrintSize)
+    {
+        pOther->ePrintSize = eSize;
+        SetOtherModified( true );
+    }
+}
+
+
+sal_uInt16 SmMathConfig::GetPrintZoomFactor() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->nPrintZoomFactor;
+}
+
+
+void SmMathConfig::SetPrintZoomFactor( sal_uInt16 nVal )
+{
+    if (!pOther)
+        LoadOther();
+    if (nVal != pOther->nPrintZoomFactor)
+    {
+        pOther->nPrintZoomFactor = nVal;
+        SetOtherModified( true );
+    }
+}
+
+
+void SmMathConfig::SetOtherIfNotEqual( bool &rbItem, bool bNewVal )
+{
+    if (bNewVal != rbItem)
+    {
+        rbItem = bNewVal;
+        SetOtherModified( true );
+    }
+}
+
+
+bool SmMathConfig::IsPrintTitle() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bPrintTitle;
+}
+
+
+void SmMathConfig::SetPrintTitle( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bPrintTitle, bVal );
+}
+
+
+bool SmMathConfig::IsPrintFormulaText() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bPrintFormulaText;
+}
+
+
+void SmMathConfig::SetPrintFormulaText( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bPrintFormulaText, bVal );
+}
+
+bool SmMathConfig::IsSaveOnlyUsedSymbols() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bIsSaveOnlyUsedSymbols;
+}
+
+bool SmMathConfig::IsAutoCloseBrackets() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bIsAutoCloseBrackets;
+}
+
+bool SmMathConfig::IsPrintFrame() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bPrintFrame;
+}
+
+
+void SmMathConfig::SetPrintFrame( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bPrintFrame, bVal );
+}
+
+
+void SmMathConfig::SetSaveOnlyUsedSymbols( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bIsSaveOnlyUsedSymbols, bVal );
+}
+
+
+void SmMathConfig::SetAutoCloseBrackets( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bIsAutoCloseBrackets, bVal );
+}
+
+
+bool SmMathConfig::IsIgnoreSpacesRight() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bIgnoreSpacesRight;
+}
+
+
+void SmMathConfig::SetIgnoreSpacesRight( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bIgnoreSpacesRight, bVal );
+}
+
+
+bool SmMathConfig::IsAutoRedraw() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bAutoRedraw;
+}
+
+
+void SmMathConfig::SetAutoRedraw( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bAutoRedraw, bVal );
+}
+
+
+bool SmMathConfig::IsShowFormulaCursor() const
+{
+    if (!pOther)
+        const_cast<SmMathConfig*>(this)->LoadOther();
+    return pOther->bFormulaCursor;
+}
+
+
+void SmMathConfig::SetShowFormulaCursor( bool bVal )
+{
+    if (!pOther)
+        LoadOther();
+    SetOtherIfNotEqual( pOther->bFormulaCursor, bVal );
+}
+
+void SmMathConfig::Notify( const css::uno::Sequence< OUString >& )
+{}
+
+
+void SmMathConfig::ItemSetToConfig(const SfxItemSet &rSet)
+{
+    const SfxPoolItem *pItem     = nullptr;
+
+    sal_uInt16 nU16;
+    bool bVal;
+    if (rSet.GetItemState(SID_PRINTSIZE, true, &pItem) == SfxItemState::SET)
+    {   nU16 = static_cast<const SfxUInt16Item *>(pItem)->GetValue();
+        SetPrintSize( static_cast<SmPrintSize>(nU16) );
+    }
+    if (rSet.GetItemState(SID_PRINTZOOM, true, &pItem) == SfxItemState::SET)
+    {   nU16 = static_cast<const SfxUInt16Item *>(pItem)->GetValue();
+        SetPrintZoomFactor( nU16 );
+    }
+    if (rSet.GetItemState(SID_PRINTTITLE, true, &pItem) == SfxItemState::SET)
+    {   bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        SetPrintTitle( bVal );
+    }
+    if (rSet.GetItemState(SID_PRINTTEXT, true, &pItem) == SfxItemState::SET)
+    {   bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        SetPrintFormulaText( bVal );
+    }
+    if (rSet.GetItemState(SID_PRINTFRAME, true, &pItem) == SfxItemState::SET)
+    {   bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        SetPrintFrame( bVal );
+    }
+    if (rSet.GetItemState(SID_AUTOREDRAW, true, &pItem) == SfxItemState::SET)
+    {   bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        SetAutoRedraw( bVal );
+    }
+    if (rSet.GetItemState(SID_NO_RIGHT_SPACES, true, &pItem) == SfxItemState::SET)
+    {   bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        if (IsIgnoreSpacesRight() != bVal)
+        {
+            SetIgnoreSpacesRight( bVal );
+
+            // reformat (displayed) formulas accordingly
+            Broadcast(SfxHint(SfxHintId::MathFormatChanged));
+        }
+    }
+    if (rSet.GetItemState(SID_SAVE_ONLY_USED_SYMBOLS, true, &pItem) == SfxItemState::SET)
+    {   bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        SetSaveOnlyUsedSymbols( bVal );
+    }
+
+    if (rSet.GetItemState(SID_AUTO_CLOSE_BRACKETS, true, &pItem) == SfxItemState::SET)
+    {
+        bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+        SetAutoCloseBrackets( bVal );
+    }
+
+    SaveOther();
+}
+
+
+void SmMathConfig::ConfigToItemSet(SfxItemSet &rSet) const
+{
+    const SfxItemPool *pPool = rSet.GetPool();
+
+    rSet.Put(SfxUInt16Item(pPool->GetWhich(SID_PRINTSIZE),
+                           sal::static_int_cast<sal_uInt16>(GetPrintSize())));
+    rSet.Put(SfxUInt16Item(pPool->GetWhich(SID_PRINTZOOM),
+                           GetPrintZoomFactor()));
+
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_PRINTTITLE), IsPrintTitle()));
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_PRINTTEXT),  IsPrintFormulaText()));
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_PRINTFRAME), IsPrintFrame()));
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_AUTOREDRAW), IsAutoRedraw()));
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_NO_RIGHT_SPACES), IsIgnoreSpacesRight()));
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_SAVE_ONLY_USED_SYMBOLS), IsSaveOnlyUsedSymbols()));
+    rSet.Put(SfxBoolItem(pPool->GetWhich(SID_AUTO_CLOSE_BRACKETS), IsAutoCloseBrackets()));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/cfgitem.hxx b/starmath/source/cfgitem.hxx
new file mode 100644
index 000000000..8fa101187
--- /dev/null
+++ b/starmath/source/cfgitem.hxx
@@ -0,0 +1,185 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_CFGITEM_HXX
+#define INCLUDED_STARMATH_SOURCE_CFGITEM_HXX
+
+#include <utility.hxx>
+
+#include <vector>
+
+#include <rtl/ustring.hxx>
+#include <svl/SfxBroadcaster.hxx>
+#include <unotools/configitem.hxx>
+
+#include <types.hxx>
+#include <memory>
+
+namespace com::sun::star::uno { template <class E> class Sequence; }
+
+class SmSym;
+class SmSymbolManager;
+class SmFormat;
+namespace vcl { class Font; }
+struct SmCfgOther;
+class SfxItemSet;
+
+struct SmFontFormat
+{
+    OUString        aName;
+    sal_Int16       nCharSet;
+    sal_Int16       nFamily;
+    sal_Int16       nPitch;
+    sal_Int16       nWeight;
+    sal_Int16       nItalic;
+
+    SmFontFormat();
+    explicit SmFontFormat( const vcl::Font &rFont );
+
+    vcl::Font       GetFont() const;
+    bool            operator == ( const SmFontFormat &rFntFmt ) const;
+};
+
+struct SmFntFmtListEntry
+{
+    OUString        aId;
+    SmFontFormat    aFntFmt;
+
+    SmFntFmtListEntry( const OUString &rId, const SmFontFormat &rFntFmt );
+};
+
+class SmFontFormatList
+{
+    std::vector<SmFntFmtListEntry> aEntries;
+    bool                    bModified;
+
+    SmFontFormatList(const SmFontFormatList&) = delete;
+    SmFontFormatList& operator=(const SmFontFormatList&) = delete;
+
+public:
+    SmFontFormatList();
+
+    void    Clear();
+    void    AddFontFormat( const OUString &rFntFmtId, const SmFontFormat &rFntFmt );
+    void    RemoveFontFormat( const OUString &rFntFmtId );
+
+    const SmFontFormat *    GetFontFormat( const OUString &rFntFmtId ) const;
+    const SmFontFormat *    GetFontFormat( size_t nPos ) const;
+    OUString                GetFontFormatId( const SmFontFormat &rFntFmt ) const;
+    OUString                GetFontFormatId( const SmFontFormat &rFntFmt, bool bAdd );
+    OUString                GetFontFormatId( size_t nPos ) const;
+    OUString                GetNewFontFormatId() const;
+    size_t                  GetCount() const    { return aEntries.size(); }
+
+    bool    IsModified() const          { return bModified; }
+    void    SetModified( bool bVal )    { bModified = bVal; }
+};
+
+class SmMathConfig final : public utl::ConfigItem, public SfxBroadcaster
+{
+    std::unique_ptr<SmFormat>         pFormat;
+    std::unique_ptr<SmCfgOther>       pOther;
+    std::unique_ptr<SmFontFormatList> pFontFormatList;
+    std::unique_ptr<SmSymbolManager>  pSymbolMgr;
+    bool                              bIsOtherModified;
+    bool                              bIsFormatModified;
+    SmFontPickList                    vFontPickList[7];
+
+    SmMathConfig(const SmMathConfig&) = delete;
+    SmMathConfig& operator=(const SmMathConfig&) = delete;
+
+    void    StripFontFormatList( const std::vector< SmSym > &rSymbols );
+
+
+    void    Save();
+
+    void    ReadSymbol( SmSym &rSymbol,
+                        const OUString &rSymbolName,
+                        const OUString &rBaseNode ) const;
+    void    ReadFontFormat( SmFontFormat &rFontFormat,
+                        const OUString &rSymbolName,
+                        const OUString &rBaseNode ) const;
+
+    void    SetOtherIfNotEqual( bool &rbItem, bool bNewVal );
+
+    void    LoadOther();
+    void    SaveOther();
+    void    LoadFormat();
+    void    SaveFormat();
+    void    LoadFontFormatList();
+    void    SaveFontFormatList();
+
+    void        SetOtherModified( bool bVal );
+    bool IsOtherModified() const     { return bIsOtherModified; }
+    void        SetFormatModified( bool bVal );
+    bool IsFormatModified() const    { return bIsFormatModified; }
+
+    SmFontFormatList &          GetFontFormatList();
+    const SmFontFormatList &    GetFontFormatList() const
+    {
+        return const_cast<SmMathConfig*>(this)->GetFontFormatList();
+    }
+
+    virtual void    ImplCommit() override;
+
+public:
+    SmMathConfig();
+    virtual ~SmMathConfig() override;
+
+    // utl::ConfigItem
+    virtual void    Notify( const css::uno::Sequence< OUString > &rPropertyNames ) override;
+
+    SmSymbolManager &   GetSymbolManager();
+    void                GetSymbols( std::vector< SmSym > &rSymbols ) const;
+    void                SetSymbols( const std::vector< SmSym > &rNewSymbols );
+
+    const SmFormat &    GetStandardFormat() const;
+    void                SetStandardFormat( const SmFormat &rFormat, bool bSaveFontFormatList = false );
+
+    bool            IsPrintTitle() const;
+    void            SetPrintTitle( bool bVal );
+    bool            IsPrintFormulaText() const;
+    void            SetPrintFormulaText( bool bVal );
+    bool            IsPrintFrame() const;
+    void            SetPrintFrame( bool bVal );
+    SmPrintSize     GetPrintSize() const;
+    void            SetPrintSize( SmPrintSize eSize );
+    sal_uInt16      GetPrintZoomFactor() const;
+    void            SetPrintZoomFactor( sal_uInt16 nVal );
+
+    bool            IsSaveOnlyUsedSymbols() const;
+    void            SetSaveOnlyUsedSymbols( bool bVal );
+    bool            IsAutoCloseBrackets() const;
+    void            SetAutoCloseBrackets( bool bVal );
+    bool            IsIgnoreSpacesRight() const;
+    void            SetIgnoreSpacesRight( bool bVal );
+    bool            IsAutoRedraw() const;
+    void            SetAutoRedraw( bool bVal );
+    bool            IsShowFormulaCursor() const;
+    void            SetShowFormulaCursor( bool bVal );
+
+    SmFontPickList & GetFontPickList(sal_uInt16 nIdent) { return vFontPickList[nIdent]; }
+
+    void ItemSetToConfig(const SfxItemSet &rSet);
+    void ConfigToItemSet(SfxItemSet &rSet) const;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/cursor.cxx b/starmath/source/cursor.cxx
new file mode 100644
index 000000000..2aae7adb5
--- /dev/null
+++ b/starmath/source/cursor.cxx
@@ -0,0 +1,1577 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#include <memory>
+#include <cursor.hxx>
+#include <visitors.hxx>
+#include <document.hxx>
+#include <view.hxx>
+#include <comphelper/string.hxx>
+#include <editeng/editeng.hxx>
+#include <osl/diagnose.h>
+#include <cassert>
+
+void SmCursor::Move(OutputDevice* pDev, SmMovementDirection direction, bool bMoveAnchor){
+    SmCaretPosGraphEntry* NewPos = nullptr;
+    switch(direction)
+    {
+        case MoveLeft:
+            if (mpPosition)
+                NewPos = mpPosition->Left;
+            OSL_ENSURE(NewPos, "NewPos shouldn't be NULL here!");
+            break;
+        case MoveRight:
+            if (mpPosition)
+                NewPos = mpPosition->Right;
+            OSL_ENSURE(NewPos, "NewPos shouldn't be NULL here!");
+            break;
+        case MoveUp:
+            //Implementation is practically identical to MoveDown, except for a single if statement
+            //so I've implemented them together and added a direction == MoveDown to the if statements.
+        case MoveDown:
+            if (mpPosition)
+            {
+                SmCaretLine from_line = SmCaretPos2LineVisitor(pDev, mpPosition->CaretPos).GetResult(),
+                            best_line,  //Best approximated line found so far
+                            curr_line;  //Current line
+                long dbp_sq = 0;        //Distance squared to best line
+                for(const auto &pEntry : *mpGraph)
+                {
+                    //Reject it if it's the current position
+                    if(pEntry->CaretPos == mpPosition->CaretPos) continue;
+                    //Compute caret line
+                    curr_line = SmCaretPos2LineVisitor(pDev, pEntry->CaretPos).GetResult();
+                    //Reject anything above if we're moving down
+                    if(curr_line.GetTop() <= from_line.GetTop() && direction == MoveDown) continue;
+                    //Reject anything below if we're moving up
+                    if(curr_line.GetTop() + curr_line.GetHeight() >= from_line.GetTop() + from_line.GetHeight()
+                            && direction == MoveUp) continue;
+                    //Compare if it to what we have, if we have anything yet
+                    if(NewPos){
+                        //Compute distance to current line squared, multiplied with a horizontal factor
+                        long dp_sq = curr_line.SquaredDistanceX(from_line) * HORIZONTICAL_DISTANCE_FACTOR +
+                                     curr_line.SquaredDistanceY(from_line);
+                        //Discard current line if best line is closer
+                        if(dbp_sq <= dp_sq) continue;
+                    }
+                    //Take current line as the best
+                    best_line = curr_line;
+                    NewPos = pEntry.get();
+                    //Update distance to best line
+                    dbp_sq = best_line.SquaredDistanceX(from_line) * HORIZONTICAL_DISTANCE_FACTOR +
+                             best_line.SquaredDistanceY(from_line);
+                }
+            }
+            break;
+        default:
+            assert(false);
+    }
+    if(NewPos){
+        mpPosition = NewPos;
+        if(bMoveAnchor)
+            mpAnchor = NewPos;
+        RequestRepaint();
+    }
+}
+
+void SmCursor::MoveTo(OutputDevice* pDev, const Point& pos, bool bMoveAnchor)
+{
+    SmCaretPosGraphEntry* NewPos = nullptr;
+    long dp_sq = 0,     //Distance to current line squared
+         dbp_sq = 1;    //Distance to best line squared
+    for(const auto &pEntry : *mpGraph)
+    {
+        OSL_ENSURE(pEntry->CaretPos.IsValid(), "The caret position graph may not have invalid positions!");
+        //Compute current line
+        SmCaretLine curr_line = SmCaretPos2LineVisitor(pDev, pEntry->CaretPos).GetResult();
+        //Compute squared distance to current line
+        dp_sq = curr_line.SquaredDistanceX(pos) + curr_line.SquaredDistanceY(pos);
+        //If we have a position compare to it
+        if(NewPos){
+            //If best line is closer, reject current line
+            if(dbp_sq <= dp_sq) continue;
+        }
+        //Accept current position as the best
+        NewPos = pEntry.get();
+        //Update distance to best line
+        dbp_sq = dp_sq;
+    }
+    if(NewPos){
+        mpPosition = NewPos;
+        if(bMoveAnchor)
+            mpAnchor = NewPos;
+        RequestRepaint();
+    }
+}
+
+void SmCursor::BuildGraph(){
+    //Save the current anchor and position
+    SmCaretPos _anchor, _position;
+    //Release mpGraph if allocated
+    if(mpGraph){
+        if(mpAnchor)
+            _anchor = mpAnchor->CaretPos;
+        if(mpPosition)
+            _position = mpPosition->CaretPos;
+        mpGraph.reset();
+        //Reset anchor and position as they point into an old graph
+        mpAnchor = nullptr;
+        mpPosition = nullptr;
+    }
+
+    //Build the new graph
+    mpGraph.reset(SmCaretPosGraphBuildingVisitor(mpTree).takeGraph());
+
+    //Restore anchor and position pointers
+    if(_anchor.IsValid() || _position.IsValid()){
+        for(const auto &pEntry : *mpGraph)
+        {
+            if(_anchor == pEntry->CaretPos)
+                mpAnchor = pEntry.get();
+            if(_position == pEntry->CaretPos)
+                mpPosition = pEntry.get();
+        }
+    }
+    //Set position and anchor to first caret position
+    auto it = mpGraph->begin();
+    assert(it != mpGraph->end());
+    if(!mpPosition)
+        mpPosition = it->get();
+    if(!mpAnchor)
+        mpAnchor = mpPosition;
+
+    assert(mpPosition);
+    assert(mpAnchor);
+    OSL_ENSURE(mpPosition->CaretPos.IsValid(), "Position must be valid");
+    OSL_ENSURE(mpAnchor->CaretPos.IsValid(), "Anchor must be valid");
+}
+
+bool SmCursor::SetCaretPosition(SmCaretPos pos){
+    for(const auto &pEntry : *mpGraph)
+    {
+        if(pEntry->CaretPos == pos)
+        {
+            mpPosition = pEntry.get();
+            mpAnchor = pEntry.get();
+            return true;
+        }
+    }
+    return false;
+}
+
+void SmCursor::AnnotateSelection(){
+    //TODO: Manage a state, reset it upon modification and optimize this call
+    SmSetSelectionVisitor(mpAnchor->CaretPos, mpPosition->CaretPos, mpTree);
+}
+
+void SmCursor::Draw(OutputDevice& pDev, Point Offset, bool isCaretVisible){
+    SmCaretDrawingVisitor(pDev, GetPosition(), Offset, isCaretVisible);
+}
+
+void SmCursor::DeletePrev(OutputDevice* pDev){
+    //Delete only a selection if there's a selection
+    if(HasSelection()){
+        Delete();
+        return;
+    }
+
+    SmNode* pLine = FindTopMostNodeInLine(mpPosition->CaretPos.pSelectedNode);
+    SmStructureNode* pLineParent = pLine->GetParent();
+    int nLineOffsetIdx = pLineParent->IndexOfSubNode(pLine);
+    assert(nLineOffsetIdx >= 0);
+
+    //If we're in front of a node who's parent is a TABLE
+    if (pLineParent->GetType() == SmNodeType::Table && mpPosition->CaretPos.nIndex == 0 && nLineOffsetIdx > 0)
+    {
+        size_t nLineOffset = nLineOffsetIdx;
+        //Now we can merge with nLineOffset - 1
+        BeginEdit();
+        //Line to merge things into, so we can delete pLine
+        SmNode* pMergeLine = pLineParent->GetSubNode(nLineOffset-1);
+        OSL_ENSURE(pMergeLine, "pMergeLine cannot be NULL!");
+        SmCaretPos PosAfterDelete;
+        //Convert first line to list
+        std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+        NodeToList(pMergeLine, *pLineList);
+        if(!pLineList->empty()){
+            //Find iterator to patch
+            SmNodeList::iterator patchPoint = pLineList->end();
+            --patchPoint;
+            //Convert second line to list
+            NodeToList(pLine, *pLineList);
+            //Patch the line list
+            ++patchPoint;
+            PosAfterDelete = PatchLineList(pLineList.get(), patchPoint);
+            //Parse the line
+            pLine = SmNodeListParser().Parse(pLineList.get());
+        }
+        pLineList.reset();
+        pLineParent->SetSubNode(nLineOffset-1, pLine);
+        //Delete the removed line slot
+        SmNodeArray lines(pLineParent->GetNumSubNodes()-1);
+        for (size_t i = 0; i < pLineParent->GetNumSubNodes(); ++i)
+        {
+            if(i < nLineOffset)
+                lines[i] = pLineParent->GetSubNode(i);
+            else if(i > nLineOffset)
+                lines[i-1] = pLineParent->GetSubNode(i);
+        }
+        pLineParent->SetSubNodes(std::move(lines));
+        //Rebuild graph
+        mpAnchor = nullptr;
+        mpPosition = nullptr;
+        BuildGraph();
+        AnnotateSelection();
+        //Set caret position
+        if(!SetCaretPosition(PosAfterDelete))
+            SetCaretPosition(SmCaretPos(pLine, 0));
+        //Finish editing
+        EndEdit();
+
+    //TODO: If we're in an empty (sub/super/*) script
+    /*}else if(pLineParent->GetType() == SmNodeType::SubSup &&
+             nLineOffset != 0 &&
+             pLine->GetType() == SmNodeType::Expression &&
+             pLine->GetNumSubNodes() == 0){
+        //There's a (sub/super) script we can delete
+    //Consider selecting the entire script if GetNumSubNodes() != 0 or pLine->GetType() != SmNodeType::Expression
+    //TODO: Handle case where we delete a limit
+    */
+
+    //Else move select, and delete if not complex
+    }else{
+        Move(pDev, MoveLeft, false);
+        if(!HasComplexSelection())
+            Delete();
+    }
+}
+
+void SmCursor::Delete(){
+    //Return if we don't have a selection to delete
+    if(!HasSelection())
+        return;
+
+    //Enter edit section
+    BeginEdit();
+
+    //Set selected on nodes
+    AnnotateSelection();
+
+    //Find an arbitrary selected node
+    SmNode* pSNode = FindSelectedNode(mpTree);
+    assert(pSNode);
+
+    //Find the topmost node of the line that holds the selection
+    SmNode* pLine = FindTopMostNodeInLine(pSNode, true);
+    OSL_ENSURE(pLine != mpTree, "Shouldn't be able to select the entire tree");
+
+    //Get the parent of the line
+    SmStructureNode* pLineParent = pLine->GetParent();
+    //Find line offset in parent
+    int nLineOffset = pLineParent->IndexOfSubNode(pLine);
+    assert(nLineOffset >= 0);
+
+    //Position after delete
+    SmCaretPos PosAfterDelete;
+
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pLine, *pLineList);
+
+    //Take the selected nodes and delete them...
+    SmNodeList::iterator patchIt = TakeSelectedNodesFromList(pLineList.get());
+
+    //Get the position to set after delete
+    PosAfterDelete = PatchLineList(pLineList.get(), patchIt);
+
+    //Finish editing
+    FinishEdit(std::move(pLineList), pLineParent, nLineOffset, PosAfterDelete);
+}
+
+void SmCursor::InsertNodes(std::unique_ptr<SmNodeList> pNewNodes){
+    if(pNewNodes->empty()){
+        return;
+    }
+
+    //Begin edit section
+    BeginEdit();
+
+    //Get the current position
+    const SmCaretPos pos = mpPosition->CaretPos;
+
+    //Find top most of line that holds position
+    SmNode* pLine = FindTopMostNodeInLine(pos.pSelectedNode);
+
+    //Find line parent and line index in parent
+    SmStructureNode* pLineParent = pLine->GetParent();
+    int nParentIndex = pLineParent->IndexOfSubNode(pLine);
+    assert(nParentIndex >= 0);
+
+    //Convert line to list
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pLine, *pLineList);
+
+    //Find iterator for place to insert nodes
+    SmNodeList::iterator it = FindPositionInLineList(pLineList.get(), pos);
+
+    //Insert all new nodes
+    SmNodeList::iterator newIt,
+                         patchIt = it, // (pointless default value, fixes compiler warnings)
+                         insIt;
+    for(newIt = pNewNodes->begin(); newIt != pNewNodes->end(); ++newIt){
+        insIt = pLineList->insert(it, *newIt);
+        if(newIt == pNewNodes->begin())
+            patchIt = insIt;
+    }
+    //Patch the places we've changed stuff
+    PatchLineList(pLineList.get(), patchIt);
+    SmCaretPos PosAfterInsert = PatchLineList(pLineList.get(), it);
+    //Release list, we've taken the nodes
+    pNewNodes.reset();
+
+    //Finish editing
+    FinishEdit(std::move(pLineList), pLineParent, nParentIndex, PosAfterInsert);
+}
+
+SmNodeList::iterator SmCursor::FindPositionInLineList(SmNodeList* pLineList,
+                                                      const SmCaretPos& rCaretPos)
+{
+    //Find iterator for position
+    SmNodeList::iterator it = std::find(pLineList->begin(), pLineList->end(), rCaretPos.pSelectedNode);
+    if (it != pLineList->end())
+    {
+        if((*it)->GetType() == SmNodeType::Text)
+        {
+            //Split textnode if needed
+            if(rCaretPos.nIndex > 0)
+            {
+                SmTextNode* pText = static_cast<SmTextNode*>(rCaretPos.pSelectedNode);
+                if (rCaretPos.nIndex == pText->GetText().getLength())
+                    return ++it;
+                OUString str1 = pText->GetText().copy(0, rCaretPos.nIndex);
+                OUString str2 = pText->GetText().copy(rCaretPos.nIndex);
+                pText->ChangeText(str1);
+                ++it;
+                //Insert str2 as new text node
+                assert(!str2.isEmpty());
+                SmTextNode* pNewText = new SmTextNode(pText->GetToken(), pText->GetFontDesc());
+                pNewText->ChangeText(str2);
+                it = pLineList->insert(it, pNewText);
+            }
+        }else
+            ++it;
+        //it now pointer to the node following pos, so pLineList->insert(it, ...) will insert correctly
+        return it;
+    }
+    //If we didn't find pSelectedNode, it must be because the caret is in front of the line
+    return pLineList->begin();
+}
+
+SmCaretPos SmCursor::PatchLineList(SmNodeList* pLineList, SmNodeList::iterator aIter) {
+    //The nodes we should consider merging
+    SmNode *prev = nullptr,
+           *next = nullptr;
+    if(aIter != pLineList->end())
+        next = *aIter;
+    if(aIter != pLineList->begin()) {
+        --aIter;
+        prev = *aIter;
+        ++aIter;
+    }
+
+    //Check if there's textnodes to merge
+    if( prev &&
+        next &&
+        prev->GetType() == SmNodeType::Text &&
+        next->GetType() == SmNodeType::Text &&
+        ( prev->GetToken().eType != TNUMBER ||
+          next->GetToken().eType == TNUMBER) ){
+        SmTextNode *pText = static_cast<SmTextNode*>(prev),
+                   *pOldN = static_cast<SmTextNode*>(next);
+        SmCaretPos retval(pText, pText->GetText().getLength());
+        OUString newText = pText->GetText() + pOldN->GetText();
+        pText->ChangeText(newText);
+        delete pOldN;
+        pLineList->erase(aIter);
+        return retval;
+    }
+
+    //Check if there's a SmPlaceNode to remove:
+    if(prev && next && prev->GetType() == SmNodeType::Place && !SmNodeListParser::IsOperator(next->GetToken())){
+        --aIter;
+        aIter = pLineList->erase(aIter);
+        delete prev;
+        //Return caret pos in front of aIter
+        if(aIter != pLineList->begin())
+            --aIter; //Thus find node before aIter
+        if(aIter == pLineList->begin())
+            return SmCaretPos();
+        return SmCaretPos::GetPosAfter(*aIter);
+    }
+    if(prev && next && next->GetType() == SmNodeType::Place && !SmNodeListParser::IsOperator(prev->GetToken())){
+        aIter = pLineList->erase(aIter);
+        delete next;
+        return SmCaretPos::GetPosAfter(prev);
+    }
+
+    //If we didn't do anything return
+    if(!prev) //return an invalid to indicate we're in front of line
+        return SmCaretPos();
+    return SmCaretPos::GetPosAfter(prev);
+}
+
+SmNodeList::iterator SmCursor::TakeSelectedNodesFromList(SmNodeList *pLineList,
+                                                         SmNodeList *pSelectedNodes) {
+    SmNodeList::iterator retval;
+    SmNodeList::iterator it = pLineList->begin();
+    while(it != pLineList->end()){
+        if((*it)->IsSelected()){
+            //Split text nodes
+            if((*it)->GetType() == SmNodeType::Text) {
+                SmTextNode* pText = static_cast<SmTextNode*>(*it);
+                OUString aText = pText->GetText();
+                //Start and lengths of the segments, 2 is the selected segment
+                int start2 = pText->GetSelectionStart(),
+                    start3 = pText->GetSelectionEnd(),
+                    len1 = start2 - 0,
+                    len2 = start3 - start2,
+                    len3 = aText.getLength() - start3;
+                SmToken aToken = pText->GetToken();
+                sal_uInt16 eFontDesc = pText->GetFontDesc();
+                //If we need make segment 1
+                if(len1 > 0) {
+                    OUString str = aText.copy(0, len1);
+                    pText->ChangeText(str);
+                    ++it;
+                } else {//Remove it if not needed
+                    it = pLineList->erase(it);
+                    delete pText;
+                }
+                //Set retval to be right after the selection
+                retval = it;
+                //if we need make segment 3
+                if(len3 > 0) {
+                    OUString str = aText.copy(start3, len3);
+                    SmTextNode* pSeg3 = new SmTextNode(aToken, eFontDesc);
+                    pSeg3->ChangeText(str);
+                    retval = pLineList->insert(it, pSeg3);
+                }
+                //If we need to save the selected text
+                if(pSelectedNodes && len2 > 0) {
+                    OUString str = aText.copy(start2, len2);
+                    SmTextNode* pSeg2 = new SmTextNode(aToken, eFontDesc);
+                    pSeg2->ChangeText(str);
+                    pSelectedNodes->push_back(pSeg2);
+                }
+            } else { //if it's not textnode
+                SmNode* pNode = *it;
+                retval = it = pLineList->erase(it);
+                if(pSelectedNodes)
+                    pSelectedNodes->push_back(pNode);
+                else
+                    delete pNode;
+            }
+        } else
+            ++it;
+    }
+    return retval;
+}
+
+void SmCursor::InsertSubSup(SmSubSup eSubSup) {
+    AnnotateSelection();
+
+    //Find line
+    SmNode *pLine;
+    if(HasSelection()) {
+        SmNode *pSNode = FindSelectedNode(mpTree);
+        assert(pSNode);
+        pLine = FindTopMostNodeInLine(pSNode, true);
+    } else
+        pLine = FindTopMostNodeInLine(mpPosition->CaretPos.pSelectedNode);
+
+    //Find Parent and offset in parent
+    SmStructureNode *pLineParent = pLine->GetParent();
+    int nParentIndex = pLineParent->IndexOfSubNode(pLine);
+    assert(nParentIndex >= 0);
+
+    //TODO: Consider handling special cases where parent is an SmOperNode,
+    //      Maybe this method should be able to add limits to an SmOperNode...
+
+    //We begin modifying the tree here
+    BeginEdit();
+
+    //Convert line to list
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pLine, *pLineList);
+
+    //Take the selection, and/or find iterator for current position
+    std::unique_ptr<SmNodeList> pSelectedNodesList(new SmNodeList);
+    SmNodeList::iterator it;
+    if(HasSelection())
+        it = TakeSelectedNodesFromList(pLineList.get(), pSelectedNodesList.get());
+    else
+        it = FindPositionInLineList(pLineList.get(), mpPosition->CaretPos);
+
+    //Find node that this should be applied to
+    SmNode* pSubject;
+    bool bPatchLine = !pSelectedNodesList->empty(); //If the line should be patched later
+    if(it != pLineList->begin()) {
+        --it;
+        pSubject = *it;
+        ++it;
+    } else {
+        //Create a new place node
+        pSubject = new SmPlaceNode();
+        pSubject->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+        it = pLineList->insert(it, pSubject);
+        ++it;
+        bPatchLine = true;  //We've modified the line it should be patched later.
+    }
+
+    //Wrap the subject in a SmSubSupNode
+    SmSubSupNode* pSubSup;
+    if(pSubject->GetType() != SmNodeType::SubSup){
+        SmToken token;
+        token.nGroup = TG::Power;
+        pSubSup = new SmSubSupNode(token);
+        pSubSup->SetBody(pSubject);
+        *(--it) = pSubSup;
+        ++it;
+    }else
+        pSubSup = static_cast<SmSubSupNode*>(pSubject);
+    //pSubject shouldn't be referenced anymore, pSubSup is the SmSubSupNode in pLineList we wish to edit.
+    //and it pointer to the element following pSubSup in pLineList.
+    pSubject = nullptr;
+
+    //Patch the line if we noted that was needed previously
+    if(bPatchLine)
+        PatchLineList(pLineList.get(), it);
+
+    //Convert existing, if any, sub-/superscript line to list
+    SmNode *pScriptLine = pSubSup->GetSubSup(eSubSup);
+    std::unique_ptr<SmNodeList> pScriptLineList(new SmNodeList);
+    NodeToList(pScriptLine, *pScriptLineList);
+
+    //Add selection to pScriptLineList
+    unsigned int nOldSize = pScriptLineList->size();
+    pScriptLineList->insert(pScriptLineList->end(), pSelectedNodesList->begin(), pSelectedNodesList->end());
+    pSelectedNodesList.reset();
+
+    //Patch pScriptLineList if needed
+    if(0 < nOldSize && nOldSize < pScriptLineList->size()) {
+        SmNodeList::iterator iPatchPoint = pScriptLineList->begin();
+        std::advance(iPatchPoint, nOldSize);
+        PatchLineList(pScriptLineList.get(), iPatchPoint);
+    }
+
+    //Find caret pos, that should be used after sub-/superscription.
+    SmCaretPos PosAfterScript; //Leave invalid for first position
+    if (!pScriptLineList->empty())
+        PosAfterScript = SmCaretPos::GetPosAfter(pScriptLineList->back());
+
+    //Parse pScriptLineList
+    pScriptLine = SmNodeListParser().Parse(pScriptLineList.get());
+    pScriptLineList.reset();
+
+    //Insert pScriptLine back into the tree
+    pSubSup->SetSubSup(eSubSup, pScriptLine);
+
+    //Finish editing
+    FinishEdit(std::move(pLineList), pLineParent, nParentIndex, PosAfterScript, pScriptLine);
+}
+
+void SmCursor::InsertBrackets(SmBracketType eBracketType) {
+    BeginEdit();
+
+    AnnotateSelection();
+
+    //Find line
+    SmNode *pLine;
+    if(HasSelection()) {
+        SmNode *pSNode = FindSelectedNode(mpTree);
+        assert(pSNode);
+        pLine = FindTopMostNodeInLine(pSNode, true);
+    } else
+        pLine = FindTopMostNodeInLine(mpPosition->CaretPos.pSelectedNode);
+
+    //Find parent and offset in parent
+    SmStructureNode *pLineParent = pLine->GetParent();
+    int nParentIndex = pLineParent->IndexOfSubNode(pLine);
+    assert(nParentIndex >= 0);
+
+    //Convert line to list
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pLine, *pLineList);
+
+    //Take the selection, and/or find iterator for current position
+    std::unique_ptr<SmNodeList> pSelectedNodesList(new SmNodeList);
+    SmNodeList::iterator it;
+    if(HasSelection())
+        it = TakeSelectedNodesFromList(pLineList.get(), pSelectedNodesList.get());
+    else
+        it = FindPositionInLineList(pLineList.get(), mpPosition->CaretPos);
+
+    //If there's no selected nodes, create a place node
+    std::unique_ptr<SmNode> pBodyNode;
+    SmCaretPos PosAfterInsert;
+    if(pSelectedNodesList->empty()) {
+        pBodyNode.reset(new SmPlaceNode());
+        PosAfterInsert = SmCaretPos(pBodyNode.get(), 1);
+    } else
+        pBodyNode.reset(SmNodeListParser().Parse(pSelectedNodesList.get()));
+
+    pSelectedNodesList.reset();
+
+    //Create SmBraceNode
+    SmToken aTok(TLEFT, '\0', "left", TG::NONE, 5);
+    SmBraceNode *pBrace = new SmBraceNode(aTok);
+    pBrace->SetScaleMode(SmScaleMode::Height);
+    std::unique_ptr<SmNode> pLeft( CreateBracket(eBracketType, true) ),
+                            pRight( CreateBracket(eBracketType, false) );
+    std::unique_ptr<SmBracebodyNode> pBody(new SmBracebodyNode(SmToken()));
+    pBody->SetSubNodes(std::move(pBodyNode), nullptr);
+    pBrace->SetSubNodes(std::move(pLeft), std::move(pBody), std::move(pRight));
+    pBrace->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+
+    //Insert into line
+    pLineList->insert(it, pBrace);
+    //Patch line (I think this is good enough)
+    SmCaretPos aAfter = PatchLineList(pLineList.get(), it);
+    if( !PosAfterInsert.IsValid() )
+        PosAfterInsert = aAfter;
+
+    //Finish editing
+    FinishEdit(std::move(pLineList), pLineParent, nParentIndex, PosAfterInsert);
+}
+
+SmNode *SmCursor::CreateBracket(SmBracketType eBracketType, bool bIsLeft) {
+    SmToken aTok;
+    if(bIsLeft){
+        switch(eBracketType){
+            case SmBracketType::Round:
+                aTok = SmToken(TLPARENT, MS_LPARENT, "(", TG::LBrace, 5);
+                break;
+            case SmBracketType::Square:
+                aTok = SmToken(TLBRACKET, MS_LBRACKET, "[", TG::LBrace, 5);
+                break;
+            case SmBracketType::Curly:
+                aTok = SmToken(TLBRACE, MS_LBRACE, "lbrace", TG::LBrace, 5);
+                break;
+        }
+    } else {
+        switch(eBracketType) {
+            case SmBracketType::Round:
+                aTok = SmToken(TRPARENT, MS_RPARENT, ")", TG::RBrace, 5);
+                break;
+            case SmBracketType::Square:
+                aTok = SmToken(TRBRACKET, MS_RBRACKET, "]", TG::RBrace, 5);
+                break;
+            case SmBracketType::Curly:
+                aTok = SmToken(TRBRACE, MS_RBRACE, "rbrace", TG::RBrace, 5);
+                break;
+        }
+    }
+    SmNode* pRetVal = new SmMathSymbolNode(aTok);
+    pRetVal->SetScaleMode(SmScaleMode::Height);
+    return pRetVal;
+}
+
+bool SmCursor::InsertRow() {
+    AnnotateSelection();
+
+    //Find line
+    SmNode *pLine;
+    if(HasSelection()) {
+        SmNode *pSNode = FindSelectedNode(mpTree);
+        assert(pSNode);
+        pLine = FindTopMostNodeInLine(pSNode, true);
+    } else
+        pLine = FindTopMostNodeInLine(mpPosition->CaretPos.pSelectedNode);
+
+    //Find parent and offset in parent
+    SmStructureNode *pLineParent = pLine->GetParent();
+    int nParentIndex = pLineParent->IndexOfSubNode(pLine);
+    assert(nParentIndex >= 0);
+
+    //Discover the context of this command
+    SmTableNode  *pTable  = nullptr;
+    SmMatrixNode *pMatrix = nullptr;
+    int nTableIndex = nParentIndex;
+    if(pLineParent->GetType() == SmNodeType::Table)
+        pTable = static_cast<SmTableNode*>(pLineParent);
+    //If it's wrapped in a SmLineNode, we can still insert a newline
+    else if(pLineParent->GetType() == SmNodeType::Line &&
+            pLineParent->GetParent() &&
+            pLineParent->GetParent()->GetType() == SmNodeType::Table) {
+        //NOTE: This hack might give problems if we stop ignoring SmAlignNode
+        pTable = static_cast<SmTableNode*>(pLineParent->GetParent());
+        nTableIndex = pTable->IndexOfSubNode(pLineParent);
+        assert(nTableIndex >= 0);
+    }
+    if(pLineParent->GetType() == SmNodeType::Matrix)
+        pMatrix = static_cast<SmMatrixNode*>(pLineParent);
+
+    //If we're not in a context that supports InsertRow, return sal_False
+    if(!pTable && !pMatrix)
+        return false;
+
+    //Now we start editing
+    BeginEdit();
+
+    //Convert line to list
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pLine, *pLineList);
+
+    //Find position in line
+    SmNodeList::iterator it;
+    if(HasSelection()) {
+        //Take the selected nodes and delete them...
+        it = TakeSelectedNodesFromList(pLineList.get());
+    } else
+        it = FindPositionInLineList(pLineList.get(), mpPosition->CaretPos);
+
+    //New caret position after inserting the newline/row in whatever context
+    SmCaretPos PosAfterInsert;
+
+    //If we're in the context of a table
+    if(pTable) {
+        std::unique_ptr<SmNodeList> pNewLineList(new SmNodeList);
+        //Move elements from pLineList to pNewLineList
+        SmNodeList& rLineList = *pLineList;
+        pNewLineList->splice(pNewLineList->begin(), rLineList, it, rLineList.end());
+        //Make sure it is valid again
+        it = pLineList->end();
+        if(it != pLineList->begin())
+            --it;
+        if(pNewLineList->empty())
+            pNewLineList->push_front(new SmPlaceNode());
+        //Parse new line
+        std::unique_ptr<SmNode> pNewLine(SmNodeListParser().Parse(pNewLineList.get()));
+        pNewLineList.reset();
+        //Wrap pNewLine in SmLineNode if needed
+        if(pLineParent->GetType() == SmNodeType::Line) {
+            std::unique_ptr<SmLineNode> pNewLineNode(new SmLineNode(SmToken(TNEWLINE, '\0', "newline")));
+            pNewLineNode->SetSubNodes(std::move(pNewLine), nullptr);
+            pNewLine = std::move(pNewLineNode);
+        }
+        //Get position
+        PosAfterInsert = SmCaretPos(pNewLine.get(), 0);
+        //Move other nodes if needed
+        for( int i = pTable->GetNumSubNodes(); i > nTableIndex + 1; i--)
+            pTable->SetSubNode(i, pTable->GetSubNode(i-1));
+
+        //Insert new line
+        pTable->SetSubNode(nTableIndex + 1, pNewLine.get());
+
+        //Check if we need to change token type:
+        if(pTable->GetNumSubNodes() > 2 && pTable->GetToken().eType == TBINOM) {
+            SmToken tok = pTable->GetToken();
+            tok.eType = TSTACK;
+            pTable->SetToken(tok);
+        }
+    }
+    //If we're in the context of a matrix
+    else {
+        //Find position after insert and patch the list
+        PosAfterInsert = PatchLineList(pLineList.get(), it);
+        //Move other children
+        sal_uInt16 rows = pMatrix->GetNumRows();
+        sal_uInt16 cols = pMatrix->GetNumCols();
+        int nRowStart = (nParentIndex - nParentIndex % cols) + cols;
+        for( int i = pMatrix->GetNumSubNodes() + cols - 1; i >= nRowStart + cols; i--)
+            pMatrix->SetSubNode(i, pMatrix->GetSubNode(i - cols));
+        for( int i = nRowStart; i < nRowStart + cols; i++) {
+            SmPlaceNode *pNewLine = new SmPlaceNode();
+            if(i == nParentIndex + cols)
+                PosAfterInsert = SmCaretPos(pNewLine, 0);
+            pMatrix->SetSubNode(i, pNewLine);
+        }
+        pMatrix->SetRowCol(rows + 1, cols);
+    }
+
+    //Finish editing
+    FinishEdit(std::move(pLineList), pLineParent, nParentIndex, PosAfterInsert);
+    //FinishEdit is actually used to handle situations where parent is an instance of
+    //SmSubSupNode. In this case parent should always be a table or matrix, however, for
+    //code reuse we just use FinishEdit() here too.
+    return true;
+}
+
+void SmCursor::InsertFraction() {
+    AnnotateSelection();
+
+    //Find line
+    SmNode *pLine;
+    if(HasSelection()) {
+        SmNode *pSNode = FindSelectedNode(mpTree);
+        assert(pSNode);
+        pLine = FindTopMostNodeInLine(pSNode, true);
+    } else
+        pLine = FindTopMostNodeInLine(mpPosition->CaretPos.pSelectedNode);
+
+    //Find Parent and offset in parent
+    SmStructureNode *pLineParent = pLine->GetParent();
+    int nParentIndex = pLineParent->IndexOfSubNode(pLine);
+    assert(nParentIndex >= 0);
+
+    //We begin modifying the tree here
+    BeginEdit();
+
+    //Convert line to list
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pLine, *pLineList);
+
+    //Take the selection, and/or find iterator for current position
+    std::unique_ptr<SmNodeList> pSelectedNodesList(new SmNodeList);
+    SmNodeList::iterator it;
+    if(HasSelection())
+        it = TakeSelectedNodesFromList(pLineList.get(), pSelectedNodesList.get());
+    else
+        it = FindPositionInLineList(pLineList.get(), mpPosition->CaretPos);
+
+    //Create pNum, and pDenom
+    bool bEmptyFraction = pSelectedNodesList->empty();
+    std::unique_ptr<SmNode> pNum( bEmptyFraction
+        ? new SmPlaceNode()
+        : SmNodeListParser().Parse(pSelectedNodesList.get()) );
+    std::unique_ptr<SmNode> pDenom(new SmPlaceNode());
+    pSelectedNodesList.reset();
+
+    //Create new fraction
+    SmBinVerNode *pFrac = new SmBinVerNode(SmToken(TOVER, '\0', "over", TG::Product, 0));
+    std::unique_ptr<SmNode> pRect(new SmRectangleNode(SmToken()));
+    pFrac->SetSubNodes(std::move(pNum), std::move(pRect), std::move(pDenom));
+
+    //Insert in pLineList
+    SmNodeList::iterator patchIt = pLineList->insert(it, pFrac);
+    PatchLineList(pLineList.get(), patchIt);
+    PatchLineList(pLineList.get(), it);
+
+    //Finish editing
+    SmNode *pSelectedNode = bEmptyFraction ? pFrac->GetSubNode(0) : pFrac->GetSubNode(2);
+    FinishEdit(std::move(pLineList), pLineParent, nParentIndex, SmCaretPos(pSelectedNode, 1));
+}
+
+void SmCursor::InsertText(const OUString& aString)
+{
+    BeginEdit();
+
+    Delete();
+
+    SmToken token;
+    token.eType = TIDENT;
+    token.cMathChar = '\0';
+    token.nGroup = TG::NONE;
+    token.nLevel = 5;
+    token.aText = aString;
+
+    SmTextNode* pText = new SmTextNode(token, FNT_VARIABLE);
+    pText->SetText(aString);
+    pText->AdjustFontDesc();
+    pText->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+
+    std::unique_ptr<SmNodeList> pList(new SmNodeList);
+    pList->push_front(pText);
+    InsertNodes(std::move(pList));
+
+    EndEdit();
+}
+
+void SmCursor::InsertElement(SmFormulaElement element){
+    BeginEdit();
+
+    Delete();
+
+    //Create new node
+    SmNode* pNewNode = nullptr;
+    switch(element){
+        case BlankElement:
+        {
+            SmToken token;
+            token.eType = TBLANK;
+            token.nGroup = TG::Blank;
+            token.aText = "~";
+            SmBlankNode* pBlankNode = new SmBlankNode(token);
+            pBlankNode->IncreaseBy(token);
+            pNewNode = pBlankNode;
+        }break;
+        case FactorialElement:
+        {
+            SmToken token(TFACT, MS_FACT, "fact", TG::UnOper, 5);
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case PlusElement:
+        {
+            SmToken token;
+            token.eType = TPLUS;
+            token.cMathChar = MS_PLUS;
+            token.nGroup = TG::UnOper | TG::Sum;
+            token.nLevel = 5;
+            token.aText = "+";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case MinusElement:
+        {
+            SmToken token;
+            token.eType = TMINUS;
+            token.cMathChar = MS_MINUS;
+            token.nGroup = TG::UnOper | TG::Sum;
+            token.nLevel = 5;
+            token.aText = "-";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case CDotElement:
+        {
+            SmToken token;
+            token.eType = TCDOT;
+            token.cMathChar = MS_CDOT;
+            token.nGroup = TG::Product;
+            token.aText = "cdot";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case EqualElement:
+        {
+            SmToken token;
+            token.eType = TASSIGN;
+            token.cMathChar = MS_ASSIGN;
+            token.nGroup = TG::Relation;
+            token.aText = "=";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case LessThanElement:
+        {
+            SmToken token;
+            token.eType = TLT;
+            token.cMathChar = MS_LT;
+            token.nGroup = TG::Relation;
+            token.aText = "<";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case GreaterThanElement:
+        {
+            SmToken token;
+            token.eType = TGT;
+            token.cMathChar = MS_GT;
+            token.nGroup = TG::Relation;
+            token.aText = ">";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+        case PercentElement:
+        {
+            SmToken token;
+            token.eType = TTEXT;
+            token.cMathChar = MS_PERCENT;
+            token.nGroup = TG::NONE;
+            token.aText = "\"%\"";
+            pNewNode = new SmMathSymbolNode(token);
+        }break;
+    }
+    assert(pNewNode);
+
+    //Prepare the new node
+    pNewNode->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+
+    //Insert new node
+    std::unique_ptr<SmNodeList> pList(new SmNodeList);
+    pList->push_front(pNewNode);
+    InsertNodes(std::move(pList));
+
+    EndEdit();
+}
+
+void SmCursor::InsertSpecial(const OUString& _aString)
+{
+    BeginEdit();
+    Delete();
+
+    OUString aString = comphelper::string::strip(_aString, ' ');
+
+    //Create instance of special node
+    SmToken token;
+    token.eType = TSPECIAL;
+    token.cMathChar = '\0';
+    token.nGroup = TG::NONE;
+    token.nLevel = 5;
+    token.aText = aString;
+    SmSpecialNode* pSpecial = new SmSpecialNode(token);
+
+    //Prepare the special node
+    pSpecial->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+
+    //Insert the node
+    std::unique_ptr<SmNodeList> pList(new SmNodeList);
+    pList->push_front(pSpecial);
+    InsertNodes(std::move(pList));
+
+    EndEdit();
+}
+
+void SmCursor::InsertCommandText(const OUString& aCommandText) {
+    //Parse the sub expression
+    auto xSubExpr = SmParser().ParseExpression(aCommandText);
+
+    //Prepare the subtree
+    xSubExpr->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+
+    //Convert subtree to list
+    SmNode* pSubExpr = xSubExpr.release();
+    std::unique_ptr<SmNodeList> pLineList(new SmNodeList);
+    NodeToList(pSubExpr, *pLineList);
+
+    BeginEdit();
+
+    //Delete any selection
+    Delete();
+
+    //Insert it
+    InsertNodes(std::move(pLineList));
+
+    EndEdit();
+}
+
+void SmCursor::Copy(){
+    if(!HasSelection())
+        return;
+
+    AnnotateSelection();
+    //Find selected node
+    SmNode* pSNode = FindSelectedNode(mpTree);
+    assert(pSNode);
+    //Find visual line
+    SmNode* pLine = FindTopMostNodeInLine(pSNode, true);
+    assert(pLine);
+
+    //Clone selected nodes
+    SmClipboard aClipboard;
+    if(IsLineCompositionNode(pLine))
+        CloneLineToClipboard(static_cast<SmStructureNode*>(pLine), &aClipboard);
+    else{
+        //Special care to only clone selected text
+        if(pLine->GetType() == SmNodeType::Text) {
+            SmTextNode *pText = static_cast<SmTextNode*>(pLine);
+            std::unique_ptr<SmTextNode> pClone(new SmTextNode( pText->GetToken(), pText->GetFontDesc() ));
+            int start  = pText->GetSelectionStart(),
+                length = pText->GetSelectionEnd() - pText->GetSelectionStart();
+            pClone->ChangeText(pText->GetText().copy(start, length));
+            pClone->SetScaleMode(pText->GetScaleMode());
+            aClipboard.push_front(std::move(pClone));
+        } else {
+            SmCloningVisitor aCloneFactory;
+            aClipboard.push_front(std::unique_ptr<SmNode>(aCloneFactory.Clone(pLine)));
+        }
+    }
+
+    //Set clipboard
+    if (!aClipboard.empty())
+        maClipboard = std::move(aClipboard);
+}
+
+void SmCursor::Paste() {
+    BeginEdit();
+    Delete();
+
+    if (!maClipboard.empty())
+        InsertNodes(CloneList(maClipboard));
+
+    EndEdit();
+}
+
+std::unique_ptr<SmNodeList> SmCursor::CloneList(SmClipboard &rClipboard){
+    SmCloningVisitor aCloneFactory;
+    std::unique_ptr<SmNodeList> pClones(new SmNodeList);
+
+    for(auto &xNode : rClipboard){
+        SmNode *pClone = aCloneFactory.Clone(xNode.get());
+        pClones->push_back(pClone);
+    }
+
+    return pClones;
+}
+
+SmNode* SmCursor::FindTopMostNodeInLine(SmNode* pSNode, bool MoveUpIfSelected){
+    assert(pSNode);
+    //Move up parent until we find a node who's
+    //parent is NULL or isn't selected and not a type of:
+    //      SmExpressionNode
+    //      SmLineNode
+    //      SmBinHorNode
+    //      SmUnHorNode
+    //      SmAlignNode
+    //      SmFontNode
+    while(pSNode->GetParent() &&
+          ((MoveUpIfSelected &&
+            pSNode->GetParent()->IsSelected()) ||
+           IsLineCompositionNode(pSNode->GetParent())))
+        pSNode = pSNode->GetParent();
+    //Now we have the selection line node
+    return pSNode;
+}
+
+SmNode* SmCursor::FindSelectedNode(SmNode* pNode){
+    if(pNode->GetNumSubNodes() == 0)
+        return nullptr;
+    for(auto pChild : *static_cast<SmStructureNode*>(pNode))
+    {
+        if(!pChild)
+            continue;
+        if(pChild->IsSelected())
+            return pChild;
+        SmNode* pRetVal = FindSelectedNode(pChild);
+        if(pRetVal)
+            return pRetVal;
+    }
+    return nullptr;
+}
+
+void SmCursor::LineToList(SmStructureNode* pLine, SmNodeList& list){
+    for(auto pChild : *pLine)
+    {
+        if (!pChild)
+            continue;
+        switch(pChild->GetType()){
+            case SmNodeType::Line:
+            case SmNodeType::UnHor:
+            case SmNodeType::Expression:
+            case SmNodeType::BinHor:
+            case SmNodeType::Align:
+            case SmNodeType::Font:
+                LineToList(static_cast<SmStructureNode*>(pChild), list);
+                break;
+            case SmNodeType::Error:
+                delete pChild;
+                break;
+            default:
+                list.push_back(pChild);
+        }
+    }
+    pLine->ClearSubNodes();
+    delete pLine;
+}
+
+void SmCursor::CloneLineToClipboard(SmStructureNode* pLine, SmClipboard* pClipboard){
+    SmCloningVisitor aCloneFactory;
+    for(auto pChild : *pLine)
+    {
+        if (!pChild)
+            continue;
+        if( IsLineCompositionNode( pChild ) )
+            CloneLineToClipboard( static_cast<SmStructureNode*>(pChild), pClipboard );
+        else if( pChild->IsSelected() && pChild->GetType() != SmNodeType::Error ) {
+            //Only clone selected text from SmTextNode
+            if(pChild->GetType() == SmNodeType::Text) {
+                SmTextNode *pText = static_cast<SmTextNode*>(pChild);
+                std::unique_ptr<SmTextNode> pClone(new SmTextNode( pChild->GetToken(), pText->GetFontDesc() ));
+                int start = pText->GetSelectionStart(),
+                    length = pText->GetSelectionEnd() - pText->GetSelectionStart();
+                pClone->ChangeText(pText->GetText().copy(start, length));
+                pClone->SetScaleMode(pText->GetScaleMode());
+                pClipboard->push_back(std::move(pClone));
+            } else
+                pClipboard->push_back(std::unique_ptr<SmNode>(aCloneFactory.Clone(pChild)));
+        }
+    }
+}
+
+bool SmCursor::IsLineCompositionNode(SmNode const * pNode){
+    switch(pNode->GetType()){
+        case SmNodeType::Line:
+        case SmNodeType::UnHor:
+        case SmNodeType::Expression:
+        case SmNodeType::BinHor:
+        case SmNodeType::Align:
+        case SmNodeType::Font:
+            return true;
+        default:
+            return false;
+    }
+}
+
+int SmCursor::CountSelectedNodes(SmNode* pNode){
+    if(pNode->GetNumSubNodes() == 0)
+        return 0;
+    int nCount = 0;
+    for(auto pChild : *static_cast<SmStructureNode*>(pNode))
+    {
+        if (!pChild)
+            continue;
+        if(pChild->IsSelected() && !IsLineCompositionNode(pChild))
+            nCount++;
+        nCount += CountSelectedNodes(pChild);
+    }
+    return nCount;
+}
+
+bool SmCursor::HasComplexSelection(){
+    if(!HasSelection())
+        return false;
+    AnnotateSelection();
+
+    return CountSelectedNodes(mpTree) > 1;
+}
+
+void SmCursor::FinishEdit(std::unique_ptr<SmNodeList> pLineList,
+                          SmStructureNode* pParent,
+                          int nParentIndex,
+                          SmCaretPos PosAfterEdit,
+                          SmNode* pStartLine) {
+    //Store number of nodes in line for later
+    int entries = pLineList->size();
+
+    //Parse list of nodes to a tree
+    SmNodeListParser parser;
+    std::unique_ptr<SmNode> pLine(parser.Parse(pLineList.get()));
+    pLineList.reset();
+
+    //Check if we're making the body of a subsup node bigger than one
+    if(pParent->GetType() == SmNodeType::SubSup &&
+       nParentIndex == 0 &&
+       entries > 1) {
+        //Wrap pLine in scalable round brackets
+        SmToken aTok(TLEFT, '\0', "left", TG::NONE, 5);
+        std::unique_ptr<SmBraceNode> pBrace(new SmBraceNode(aTok));
+        pBrace->SetScaleMode(SmScaleMode::Height);
+        std::unique_ptr<SmNode> pLeft(  CreateBracket(SmBracketType::Round, true) ),
+                                pRight( CreateBracket(SmBracketType::Round, false) );
+        std::unique_ptr<SmBracebodyNode> pBody(new SmBracebodyNode(SmToken()));
+        pBody->SetSubNodes(std::move(pLine), nullptr);
+        pBrace->SetSubNodes(std::move(pLeft), std::move(pBody), std::move(pRight));
+        pBrace->Prepare(mpDocShell->GetFormat(), *mpDocShell, 0);
+        pLine = std::move(pBrace);
+        //TODO: Consider the following alternative behavior:
+        //Consider the line: A + {B + C}^D lsub E
+        //Here pLineList is B, + and C and pParent is a subsup node with
+        //both RSUP and LSUB set. Imagine the user just inserted "B +" in
+        //the body of the subsup node...
+        //The most natural thing to do would be to make the line like this:
+        //A + B lsub E + C ^ D
+        //E.g. apply LSUB and LSUP to the first element in pLineList and RSUP
+        //and RSUB to the last element in pLineList. But how should this act
+        //for CSUP and CSUB ???
+        //For this reason and because brackets was faster to implement, this solution
+        //have been chosen. It might be worth working on the other solution later...
+    }
+
+    //Set pStartLine if NULL
+    if(!pStartLine)
+        pStartLine = pLine.get();
+
+    //Insert it back into the parent
+    pParent->SetSubNode(nParentIndex, pLine.release());
+
+    //Rebuild graph of caret position
+    mpAnchor = nullptr;
+    mpPosition = nullptr;
+    BuildGraph();
+    AnnotateSelection(); //Update selection annotation!
+
+    //Set caret position
+    if(!SetCaretPosition(PosAfterEdit))
+        SetCaretPosition(SmCaretPos(pStartLine, 0));
+
+    //End edit section
+    EndEdit();
+}
+
+void SmCursor::BeginEdit(){
+    if(mnEditSections++ > 0) return;
+
+    mbIsEnabledSetModifiedSmDocShell = mpDocShell->IsEnableSetModified();
+    if( mbIsEnabledSetModifiedSmDocShell )
+        mpDocShell->EnableSetModified( false );
+}
+
+void SmCursor::EndEdit(){
+    if(--mnEditSections > 0) return;
+
+    mpDocShell->SetFormulaArranged(false);
+    //Okay, I don't know what this does... :)
+    //It's used in SmDocShell::SetText and with places where everything is modified.
+    //I think it does some magic, with sfx, but everything is totally undocumented so
+    //it's kinda hard to tell...
+    if ( mbIsEnabledSetModifiedSmDocShell )
+        mpDocShell->EnableSetModified( mbIsEnabledSetModifiedSmDocShell );
+    //I think this notifies people around us that we've modified this document...
+    mpDocShell->SetModified();
+    //I think SmDocShell uses this value when it sends an update graphics event
+    //Anyway comments elsewhere suggests it needs to be updated...
+    mpDocShell->mnModifyCount++;
+
+    //TODO: Consider copying the update accessibility code from SmDocShell::SetText in here...
+    //This somehow updates the size of SmGraphicView if it is running in embedded mode
+    if( mpDocShell->GetCreateMode() == SfxObjectCreateMode::EMBEDDED )
+        mpDocShell->OnDocumentPrinterChanged(nullptr);
+
+    //Request a repaint...
+    RequestRepaint();
+
+    //Update the edit engine and text of the document
+    OUString formula;
+    SmNodeToTextVisitor(mpTree, formula);
+    //mpTree->CreateTextFromNode(formula);
+    mpDocShell->maText = formula;
+    mpDocShell->GetEditEngine().QuickInsertText( formula, ESelection( 0, 0, EE_PARA_ALL, EE_TEXTPOS_ALL ) );
+    mpDocShell->GetEditEngine().QuickFormatDoc();
+}
+
+void SmCursor::RequestRepaint(){
+    SmViewShell *pViewSh = SmGetActiveView();
+    if( pViewSh ) {
+        if ( SfxObjectCreateMode::EMBEDDED == mpDocShell->GetCreateMode() )
+            mpDocShell->Repaint();
+        else
+            pViewSh->GetGraphicWindow().Invalidate();
+    }
+}
+
+bool SmCursor::IsAtTailOfBracket(SmBracketType eBracketType, SmBraceNode** ppBraceNode) const {
+    const SmCaretPos pos = GetPosition();
+    if (!pos.IsValid()) {
+        return false;
+    }
+
+    SmNode* pNode = pos.pSelectedNode;
+
+    if (pNode->GetType() == SmNodeType::Text) {
+        SmTextNode* pTextNode = static_cast<SmTextNode*>(pNode);
+        if (pos.nIndex < pTextNode->GetText().getLength()) {
+            // The cursor is on a text node and at the middle of it.
+            return false;
+        }
+    } else {
+        if (pos.nIndex < 1) {
+            return false;
+        }
+    }
+
+    while (true) {
+        SmStructureNode* pParentNode = pNode->GetParent();
+        if (!pParentNode) {
+            // There's no brace body node in the ancestors.
+            return false;
+        }
+
+        int index = pParentNode->IndexOfSubNode(pNode);
+        assert(index >= 0);
+        if (static_cast<size_t>(index + 1) != pParentNode->GetNumSubNodes()) {
+            // The cursor is not at the tail at one of ancestor nodes.
+            return false;
+        }
+
+        pNode = pParentNode;
+        if (pNode->GetType() == SmNodeType::Bracebody) {
+            // Found the brace body node.
+            break;
+        }
+    }
+
+    SmStructureNode* pBraceNodeTmp = pNode->GetParent();
+    if (!pBraceNodeTmp || pBraceNodeTmp->GetType() != SmNodeType::Brace) {
+        // Brace node is invalid.
+        return false;
+    }
+
+    SmBraceNode* pBraceNode = static_cast<SmBraceNode*>(pBraceNodeTmp);
+    SmMathSymbolNode* pClosingNode = pBraceNode->ClosingBrace();
+    if (!pClosingNode) {
+        // Couldn't get closing symbol node.
+        return false;
+    }
+
+    // Check if the closing brace matches eBracketType.
+    SmTokenType eClosingTokenType = pClosingNode->GetToken().eType;
+    switch (eBracketType) {
+    case SmBracketType::Round:        if (eClosingTokenType != TRPARENT)   { return false; } break;
+    case SmBracketType::Square:       if (eClosingTokenType != TRBRACKET)  { return false; } break;
+    case SmBracketType::Curly:        if (eClosingTokenType != TRBRACE)    { return false; } break;
+    default:
+        return false;
+    }
+
+    if (ppBraceNode) {
+        *ppBraceNode = pBraceNode;
+    }
+
+    return true;
+}
+
+void SmCursor::MoveAfterBracket(SmBraceNode* pBraceNode)
+{
+    mpPosition->CaretPos.pSelectedNode = pBraceNode;
+    mpPosition->CaretPos.nIndex = 1;
+    mpAnchor->CaretPos.pSelectedNode = pBraceNode;
+    mpAnchor->CaretPos.nIndex = 1;
+    RequestRepaint();
+}
+
+
+/////////////////////////////////////// SmNodeListParser
+
+SmNode* SmNodeListParser::Parse(SmNodeList* list){
+    pList = list;
+    //Delete error nodes
+    SmNodeList::iterator it = pList->begin();
+    while(it != pList->end()) {
+        if((*it)->GetType() == SmNodeType::Error){
+            //Delete and erase
+            delete *it;
+            it = pList->erase(it);
+        }else
+            ++it;
+    }
+    SmNode* retval = Expression();
+    pList = nullptr;
+    return retval;
+}
+
+SmNode* SmNodeListParser::Expression(){
+    SmNodeArray NodeArray;
+    //Accept as many relations as there is
+    while(Terminal())
+        NodeArray.push_back(Relation());
+
+    //Create SmExpressionNode, I hope SmToken() will do :)
+    SmStructureNode* pExpr = new SmExpressionNode(SmToken());
+    pExpr->SetSubNodes(std::move(NodeArray));
+    return pExpr;
+}
+
+SmNode* SmNodeListParser::Relation(){
+    //Read a sum
+    std::unique_ptr<SmNode> pLeft(Sum());
+    //While we have tokens and the next is a relation
+    while(Terminal() && IsRelationOperator(Terminal()->GetToken())){
+        //Take the operator
+        std::unique_ptr<SmNode> pOper(Take());
+        //Find the right side of the relation
+        std::unique_ptr<SmNode> pRight(Sum());
+        //Create new SmBinHorNode
+        std::unique_ptr<SmStructureNode> pNewNode(new SmBinHorNode(SmToken()));
+        pNewNode->SetSubNodes(std::move(pLeft), std::move(pOper), std::move(pRight));
+        pLeft = std::move(pNewNode);
+    }
+    return pLeft.release();
+}
+
+SmNode* SmNodeListParser::Sum(){
+    //Read a product
+    std::unique_ptr<SmNode> pLeft(Product());
+    //While we have tokens and the next is a sum
+    while(Terminal() && IsSumOperator(Terminal()->GetToken())){
+        //Take the operator
+        std::unique_ptr<SmNode> pOper(Take());
+        //Find the right side of the sum
+        std::unique_ptr<SmNode> pRight(Product());
+        //Create new SmBinHorNode
+        std::unique_ptr<SmStructureNode> pNewNode(new SmBinHorNode(SmToken()));
+        pNewNode->SetSubNodes(std::move(pLeft), std::move(pOper), std::move(pRight));
+        pLeft = std::move(pNewNode);
+    }
+    return pLeft.release();
+}
+
+SmNode* SmNodeListParser::Product(){
+    //Read a Factor
+    std::unique_ptr<SmNode> pLeft(Factor());
+    //While we have tokens and the next is a product
+    while(Terminal() && IsProductOperator(Terminal()->GetToken())){
+        //Take the operator
+        std::unique_ptr<SmNode> pOper(Take());
+        //Find the right side of the operation
+        std::unique_ptr<SmNode> pRight(Factor());
+        //Create new SmBinHorNode
+        std::unique_ptr<SmStructureNode> pNewNode(new SmBinHorNode(SmToken()));
+        pNewNode->SetSubNodes(std::move(pLeft), std::move(pOper), std::move(pRight));
+        pLeft = std::move(pNewNode);
+    }
+    return pLeft.release();
+}
+
+SmNode* SmNodeListParser::Factor(){
+    //Read unary operations
+    if(!Terminal())
+        return Error();
+    //Take care of unary operators
+    else if(IsUnaryOperator(Terminal()->GetToken()))
+    {
+        SmStructureNode *pUnary = new SmUnHorNode(SmToken());
+        std::unique_ptr<SmNode> pOper(Terminal()),
+                                pArg;
+
+        if(Next())
+            pArg.reset(Factor());
+        else
+            pArg.reset(Error());
+
+        pUnary->SetSubNodes(std::move(pOper), std::move(pArg));
+        return pUnary;
+    }
+    return Postfix();
+}
+
+SmNode* SmNodeListParser::Postfix(){
+    if(!Terminal())
+        return Error();
+    std::unique_ptr<SmNode> pArg;
+    if(IsPostfixOperator(Terminal()->GetToken()))
+        pArg.reset(Error());
+    else if(IsOperator(Terminal()->GetToken()))
+        return Error();
+    else
+        pArg.reset(Take());
+    while(Terminal() && IsPostfixOperator(Terminal()->GetToken())) {
+        std::unique_ptr<SmStructureNode> pUnary(new SmUnHorNode(SmToken()) );
+        std::unique_ptr<SmNode> pOper(Take());
+        pUnary->SetSubNodes(std::move(pArg), std::move(pOper));
+        pArg = std::move(pUnary);
+    }
+    return pArg.release();
+}
+
+SmNode* SmNodeListParser::Error(){
+    return new SmErrorNode(SmToken());
+}
+
+bool SmNodeListParser::IsOperator(const SmToken &token) {
+    return  IsRelationOperator(token) ||
+            IsSumOperator(token) ||
+            IsProductOperator(token) ||
+            IsUnaryOperator(token) ||
+            IsPostfixOperator(token);
+}
+
+bool SmNodeListParser::IsRelationOperator(const SmToken &token) {
+    return bool(token.nGroup & TG::Relation);
+}
+
+bool SmNodeListParser::IsSumOperator(const SmToken &token) {
+    return bool(token.nGroup & TG::Sum);
+}
+
+bool SmNodeListParser::IsProductOperator(const SmToken &token) {
+    return token.nGroup & TG::Product &&
+           token.eType != TWIDESLASH &&
+           token.eType != TWIDEBACKSLASH &&
+           token.eType != TUNDERBRACE &&
+           token.eType != TOVERBRACE &&
+           token.eType != TOVER;
+}
+
+bool SmNodeListParser::IsUnaryOperator(const SmToken &token) {
+    return  token.nGroup & TG::UnOper &&
+            (token.eType == TPLUS ||
+             token.eType == TMINUS ||
+             token.eType == TPLUSMINUS ||
+             token.eType == TMINUSPLUS ||
+             token.eType == TNEG ||
+             token.eType == TUOPER);
+}
+
+bool SmNodeListParser::IsPostfixOperator(const SmToken &token) {
+    return token.eType == TFACT;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/dialog.cxx b/starmath/source/dialog.cxx
new file mode 100644
index 000000000..77fc823ba
--- /dev/null
+++ b/starmath/source/dialog.cxx
@@ -0,0 +1,2048 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <cassert>
+
+#include <comphelper/string.hxx>
+#include <svl/eitem.hxx>
+#include <svl/intitem.hxx>
+#include <svl/stritem.hxx>
+#include <vcl/event.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/weld.hxx>
+#include <svtools/ctrltool.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/wall.hxx>
+#include <vcl/fontcharmap.hxx>
+#include <sfx2/dispatch.hxx>
+#include <svx/charmap.hxx>
+#include <svx/ucsubset.hxx>
+
+#include <dialog.hxx>
+#include <starmath.hrc>
+#include <strings.hrc>
+#include <helpids.h>
+#include "cfgitem.hxx"
+#include <smmod.hxx>
+#include <symbol.hxx>
+#include <view.hxx>
+
+#include <algorithm>
+
+namespace
+{
+
+void lclGetSettingColors(Color& rBackgroundColor, Color& rTextColor)
+{
+    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+    if (rStyleSettings.GetHighContrastMode())
+    {
+        rBackgroundColor = rStyleSettings.GetFieldColor();
+        rTextColor = rStyleSettings.GetFieldTextColor();
+    }
+    else
+    {
+        rBackgroundColor = COL_WHITE;
+        rTextColor = COL_BLACK;
+    }
+}
+
+// Since it's better to set/query the FontStyle via its attributes rather
+// than via the StyleName we create a way to translate
+// Attribute <-> StyleName
+
+class SmFontStyles
+{
+    OUString aNormal;
+    OUString aBold;
+    OUString aItalic;
+    OUString aBoldItalic;
+
+public:
+    SmFontStyles();
+
+    static sal_uInt16 GetCount() { return 4; }
+    const OUString& GetStyleName(const vcl::Font& rFont) const;
+    const OUString& GetStyleName(sal_uInt16 nIdx) const;
+};
+
+} // end anonymous namespace
+
+SmFontStyles::SmFontStyles()
+    : aNormal(SmResId(RID_FONTREGULAR))
+    , aBold(SmResId(RID_FONTBOLD))
+    , aItalic(SmResId(RID_FONTITALIC))
+{
+    aBoldItalic = aBold;
+    aBoldItalic += ", ";
+    aBoldItalic += aItalic;
+}
+
+const OUString& SmFontStyles::GetStyleName(const vcl::Font& rFont) const
+{
+    //! compare also SmSpecialNode::Prepare
+    bool bBold   = IsBold( rFont ),
+         bItalic = IsItalic( rFont );
+
+    if (bBold && bItalic)
+        return aBoldItalic;
+    else if (bItalic)
+        return aItalic;
+    else if (bBold)
+        return aBold;
+    return aNormal;
+}
+
+const OUString& SmFontStyles::GetStyleName( sal_uInt16 nIdx ) const
+{
+    // 0 = "normal",  1 = "italic",
+    // 2 = "bold",    3 = "bold italic"
+
+    assert( nIdx < GetCount() );
+    switch (nIdx)
+    {
+        case 0 : return aNormal;
+        case 1 : return aItalic;
+        case 2 : return aBold;
+        default: /*case 3:*/ return aBoldItalic;
+    }
+}
+
+static const SmFontStyles & GetFontStyles()
+{
+    static const SmFontStyles aImpl;
+    return aImpl;
+}
+
+void SetFontStyle(const OUString &rStyleName, vcl::Font &rFont)
+{
+    // Find index related to StyleName. For an empty StyleName it's assumed to be
+    // 0 (neither bold nor italic).
+    sal_uInt16  nIndex = 0;
+    if (!rStyleName.isEmpty())
+    {
+        sal_uInt16 i;
+        const SmFontStyles &rStyles = GetFontStyles();
+        for (i = 0;  i < SmFontStyles::GetCount(); ++i)
+            if (rStyleName == rStyles.GetStyleName(i))
+                break;
+        assert(i < SmFontStyles::GetCount() && "style-name unknown");
+        nIndex = i;
+    }
+
+    rFont.SetItalic((nIndex & 0x1) ? ITALIC_NORMAL : ITALIC_NONE);
+    rFont.SetWeight((nIndex & 0x2) ? WEIGHT_BOLD : WEIGHT_NORMAL);
+}
+
+IMPL_LINK_NOARG(SmPrintOptionsTabPage, SizeButtonClickHdl, weld::ToggleButton&, void)
+{
+    m_xZoom->set_sensitive(m_xSizeZoomed->get_active());
+}
+
+SmPrintOptionsTabPage::SmPrintOptionsTabPage(weld::Container* pPage, weld::DialogController* pController, const SfxItemSet& rOptions)
+    : SfxTabPage(pPage, pController, "modules/smath/ui/smathsettings.ui", "SmathSettings", &rOptions)
+    , m_xTitle(m_xBuilder->weld_check_button("title"))
+    , m_xText(m_xBuilder->weld_check_button("text"))
+    , m_xFrame(m_xBuilder->weld_check_button("frame"))
+    , m_xSizeNormal(m_xBuilder->weld_radio_button("sizenormal"))
+    , m_xSizeScaled(m_xBuilder->weld_radio_button("sizescaled"))
+    , m_xSizeZoomed(m_xBuilder->weld_radio_button("sizezoomed"))
+    , m_xZoom(m_xBuilder->weld_metric_spin_button("zoom", FieldUnit::PERCENT))
+    , m_xNoRightSpaces(m_xBuilder->weld_check_button("norightspaces"))
+    , m_xSaveOnlyUsedSymbols(m_xBuilder->weld_check_button("saveonlyusedsymbols"))
+    , m_xAutoCloseBrackets(m_xBuilder->weld_check_button("autoclosebrackets"))
+{
+    m_xSizeNormal->connect_toggled(LINK(this, SmPrintOptionsTabPage, SizeButtonClickHdl));
+    m_xSizeScaled->connect_toggled(LINK(this, SmPrintOptionsTabPage, SizeButtonClickHdl));
+    m_xSizeZoomed->connect_toggled(LINK(this, SmPrintOptionsTabPage, SizeButtonClickHdl));
+
+    Reset(&rOptions);
+}
+
+SmPrintOptionsTabPage::~SmPrintOptionsTabPage()
+{
+}
+
+bool SmPrintOptionsTabPage::FillItemSet(SfxItemSet* rSet)
+{
+    sal_uInt16  nPrintSize;
+    if (m_xSizeNormal->get_active())
+        nPrintSize = PRINT_SIZE_NORMAL;
+    else if (m_xSizeScaled->get_active())
+        nPrintSize = PRINT_SIZE_SCALED;
+    else
+        nPrintSize = PRINT_SIZE_ZOOMED;
+
+    rSet->Put(SfxUInt16Item(GetWhich(SID_PRINTSIZE), nPrintSize));
+    rSet->Put(SfxUInt16Item(GetWhich(SID_PRINTZOOM), sal::static_int_cast<sal_uInt16>(m_xZoom->get_value(FieldUnit::PERCENT))));
+    rSet->Put(SfxBoolItem(GetWhich(SID_PRINTTITLE), m_xTitle->get_active()));
+    rSet->Put(SfxBoolItem(GetWhich(SID_PRINTTEXT), m_xText->get_active()));
+    rSet->Put(SfxBoolItem(GetWhich(SID_PRINTFRAME), m_xFrame->get_active()));
+    rSet->Put(SfxBoolItem(GetWhich(SID_NO_RIGHT_SPACES), m_xNoRightSpaces->get_active()));
+    rSet->Put(SfxBoolItem(GetWhich(SID_SAVE_ONLY_USED_SYMBOLS), m_xSaveOnlyUsedSymbols->get_active()));
+    rSet->Put(SfxBoolItem(GetWhich(SID_AUTO_CLOSE_BRACKETS), m_xAutoCloseBrackets->get_active()));
+
+    return true;
+}
+
+void SmPrintOptionsTabPage::Reset(const SfxItemSet* rSet)
+{
+    SmPrintSize ePrintSize = static_cast<SmPrintSize>(static_cast<const SfxUInt16Item &>(rSet->Get(GetWhich(SID_PRINTSIZE))).GetValue());
+
+    m_xSizeNormal->set_active(ePrintSize == PRINT_SIZE_NORMAL);
+    m_xSizeScaled->set_active(ePrintSize == PRINT_SIZE_SCALED);
+    m_xSizeZoomed->set_active(ePrintSize == PRINT_SIZE_ZOOMED);
+
+    m_xZoom->set_sensitive(m_xSizeZoomed->get_active());
+
+    m_xZoom->set_value(static_cast<const SfxUInt16Item &>(rSet->Get(GetWhich(SID_PRINTZOOM))).GetValue(), FieldUnit::PERCENT);
+
+    m_xTitle->set_active(static_cast<const SfxBoolItem &>(rSet->Get(GetWhich(SID_PRINTTITLE))).GetValue());
+    m_xNoRightSpaces->set_active(static_cast<const SfxBoolItem &>(rSet->Get(GetWhich(SID_NO_RIGHT_SPACES))).GetValue());
+    m_xSaveOnlyUsedSymbols->set_active(static_cast<const SfxBoolItem &>(rSet->Get(GetWhich(SID_SAVE_ONLY_USED_SYMBOLS))).GetValue());
+    m_xAutoCloseBrackets->set_active(static_cast<const SfxBoolItem &>(rSet->Get(GetWhich(SID_AUTO_CLOSE_BRACKETS))).GetValue());
+}
+
+std::unique_ptr<SfxTabPage> SmPrintOptionsTabPage::Create(weld::Container* pPage, weld::DialogController* pController, const SfxItemSet& rSet)
+{
+    return std::make_unique<SmPrintOptionsTabPage>(pPage, pController, rSet);
+}
+
+void SmShowFont::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/)
+{
+    Color aBackColor;
+    Color aTextColor;
+    lclGetSettingColors(aBackColor, aTextColor);
+
+    rRenderContext.SetBackground(Wallpaper(aBackColor));
+
+    vcl::Font aFont(maFont);
+    aFont.SetFontSize(Size(0, 24 * rRenderContext.GetDPIScaleFactor()));
+    aFont.SetAlignment(ALIGN_TOP);
+    rRenderContext.SetFont(aFont);
+    rRenderContext.SetTextColor(aTextColor);
+
+    OUString sText(rRenderContext.GetFont().GetFamilyName());
+    Size aTextSize(rRenderContext.GetTextWidth(sText), rRenderContext.GetTextHeight());
+
+    rRenderContext.DrawText(Point((rRenderContext.GetOutputSize().Width()  - aTextSize.Width())  / 2,
+                                  (rRenderContext.GetOutputSize().Height() - aTextSize.Height()) / 2), sText);
+}
+
+void SmShowFont::SetDrawingArea(weld::DrawingArea* pDrawingArea)
+{
+    CustomWidgetController::SetDrawingArea(pDrawingArea);
+    Size aSize(pDrawingArea->get_ref_device().LogicToPixel(Size(111 , 31), MapMode(MapUnit::MapAppFont)));
+    pDrawingArea->set_size_request(aSize.Width(), aSize.Height());
+}
+
+void SmShowFont::SetFont(const vcl::Font& rFont)
+{
+    maFont = rFont;
+    Invalidate();
+}
+
+IMPL_LINK( SmFontDialog, FontSelectHdl, weld::ComboBox&, rComboBox, void )
+{
+    maFont.SetFamilyName(rComboBox.get_active_text());
+    m_aShowFont.SetFont(maFont);
+}
+
+IMPL_LINK_NOARG(SmFontDialog, AttrChangeHdl, weld::ToggleButton&, void)
+{
+    if (m_xBoldCheckBox->get_active())
+        maFont.SetWeight(WEIGHT_BOLD);
+    else
+        maFont.SetWeight(WEIGHT_NORMAL);
+
+    if (m_xItalicCheckBox->get_active())
+        maFont.SetItalic(ITALIC_NORMAL);
+    else
+        maFont.SetItalic(ITALIC_NONE);
+
+    m_aShowFont.SetFont(maFont);
+}
+
+void SmFontDialog::SetFont(const vcl::Font &rFont)
+{
+    maFont = rFont;
+
+    m_xFontBox->set_active_text(maFont.GetFamilyName());
+    m_xBoldCheckBox->set_active(IsBold(maFont));
+    m_xItalicCheckBox->set_active(IsItalic(maFont));
+    m_aShowFont.SetFont(maFont);
+}
+
+SmFontDialog::SmFontDialog(weld::Window * pParent, OutputDevice *pFntListDevice, bool bHideCheckboxes)
+    : GenericDialogController(pParent, "modules/smath/ui/fontdialog.ui", "FontDialog")
+    , m_xFontBox(m_xBuilder->weld_entry_tree_view("fontgrid", "font", "fonts"))
+    , m_xAttrFrame(m_xBuilder->weld_widget("attrframe"))
+    , m_xBoldCheckBox(m_xBuilder->weld_check_button("bold"))
+    , m_xItalicCheckBox(m_xBuilder->weld_check_button("italic"))
+    , m_xShowFont(new weld::CustomWeld(*m_xBuilder, "preview", m_aShowFont))
+{
+    m_xFontBox->set_height_request_by_rows(8);
+
+    {
+        weld::WaitObject aWait(pParent);
+
+        FontList aFontList( pFntListDevice );
+
+        sal_uInt16  nCount = aFontList.GetFontNameCount();
+        for (sal_uInt16 i = 0;  i < nCount; ++i)
+        {
+            m_xFontBox->append_text(aFontList.GetFontName(i).GetFamilyName());
+        }
+        maFont.SetFontSize(Size(0, 24));
+        maFont.SetWeight(WEIGHT_NORMAL);
+        maFont.SetItalic(ITALIC_NONE);
+        maFont.SetFamily(FAMILY_DONTKNOW);
+        maFont.SetPitch(PITCH_DONTKNOW);
+        maFont.SetCharSet(RTL_TEXTENCODING_DONTKNOW);
+        maFont.SetTransparent(true);
+    }
+
+    m_xFontBox->connect_changed(LINK(this, SmFontDialog, FontSelectHdl));
+    m_xBoldCheckBox->connect_toggled(LINK(this, SmFontDialog, AttrChangeHdl));
+    m_xItalicCheckBox->connect_toggled(LINK(this, SmFontDialog, AttrChangeHdl));
+
+    if (bHideCheckboxes)
+    {
+        m_xBoldCheckBox->set_active(false);
+        m_xBoldCheckBox->set_sensitive(false);
+        m_xItalicCheckBox->set_active(false);
+        m_xItalicCheckBox->set_sensitive(false);
+        m_xAttrFrame->hide();
+    }
+}
+
+SmFontDialog::~SmFontDialog()
+{
+}
+
+namespace {
+
+class SaveDefaultsQuery : public weld::MessageDialogController
+{
+public:
+    explicit SaveDefaultsQuery(weld::Widget* pParent)
+        : MessageDialogController(pParent, "modules/smath/ui/savedefaultsdialog.ui",
+                "SaveDefaultsDialog")
+    {
+    }
+};
+
+}
+
+IMPL_LINK_NOARG( SmFontSizeDialog, DefaultButtonClickHdl, weld::Button&, void )
+{
+    SaveDefaultsQuery aQuery(m_xDialog.get());
+    if (aQuery.run() == RET_YES)
+    {
+        SmModule *pp = SM_MOD();
+        SmFormat aFmt( pp->GetConfig()->GetStandardFormat() );
+        WriteTo( aFmt );
+        pp->GetConfig()->SetStandardFormat( aFmt );
+    }
+}
+
+SmFontSizeDialog::SmFontSizeDialog(weld::Window* pParent)
+    : GenericDialogController(pParent, "modules/smath/ui/fontsizedialog.ui", "FontSizeDialog")
+    , m_xBaseSize(m_xBuilder->weld_metric_spin_button("spinB_baseSize", FieldUnit::POINT))
+    , m_xTextSize(m_xBuilder->weld_metric_spin_button("spinB_text", FieldUnit::PERCENT))
+    , m_xIndexSize(m_xBuilder->weld_metric_spin_button("spinB_index", FieldUnit::PERCENT))
+    , m_xFunctionSize(m_xBuilder->weld_metric_spin_button("spinB_function", FieldUnit::PERCENT))
+    , m_xOperatorSize(m_xBuilder->weld_metric_spin_button("spinB_operator", FieldUnit::PERCENT))
+    , m_xBorderSize(m_xBuilder->weld_metric_spin_button("spinB_limit", FieldUnit::PERCENT))
+    , m_xDefaultButton(m_xBuilder->weld_button("default"))
+{
+    m_xDefaultButton->connect_clicked(LINK(this, SmFontSizeDialog, DefaultButtonClickHdl));
+}
+
+SmFontSizeDialog::~SmFontSizeDialog()
+{
+}
+
+void SmFontSizeDialog::ReadFrom(const SmFormat &rFormat)
+{
+    //! watch out: round properly!
+    m_xBaseSize->set_value( SmRoundFraction(
+        Sm100th_mmToPts( rFormat.GetBaseSize().Height() ) ), FieldUnit::NONE );
+
+    m_xTextSize->set_value( rFormat.GetRelSize(SIZ_TEXT), FieldUnit::NONE );
+    m_xIndexSize->set_value( rFormat.GetRelSize(SIZ_INDEX), FieldUnit::NONE );
+    m_xFunctionSize->set_value( rFormat.GetRelSize(SIZ_FUNCTION), FieldUnit::NONE );
+    m_xOperatorSize->set_value( rFormat.GetRelSize(SIZ_OPERATOR), FieldUnit::NONE );
+    m_xBorderSize->set_value( rFormat.GetRelSize(SIZ_LIMITS), FieldUnit::NONE );
+}
+
+void SmFontSizeDialog::WriteTo(SmFormat &rFormat) const
+{
+    rFormat.SetBaseSize( Size(0, SmPtsTo100th_mm( static_cast< long >(m_xBaseSize->get_value(FieldUnit::NONE)))) );
+
+    rFormat.SetRelSize(SIZ_TEXT,     sal::static_int_cast<sal_uInt16>(m_xTextSize->get_value(FieldUnit::NONE)));
+    rFormat.SetRelSize(SIZ_INDEX,    sal::static_int_cast<sal_uInt16>(m_xIndexSize->get_value(FieldUnit::NONE)));
+    rFormat.SetRelSize(SIZ_FUNCTION, sal::static_int_cast<sal_uInt16>(m_xFunctionSize->get_value(FieldUnit::NONE)));
+    rFormat.SetRelSize(SIZ_OPERATOR, sal::static_int_cast<sal_uInt16>(m_xOperatorSize->get_value(FieldUnit::NONE)));
+    rFormat.SetRelSize(SIZ_LIMITS,   sal::static_int_cast<sal_uInt16>(m_xBorderSize->get_value(FieldUnit::NONE)));
+
+    const Size aTmp (rFormat.GetBaseSize());
+    for (sal_uInt16  i = FNT_BEGIN;  i <= FNT_END;  i++)
+        rFormat.SetFontSize(i, aTmp);
+
+    rFormat.RequestApplyChanges();
+}
+
+IMPL_LINK(SmFontTypeDialog, MenuSelectHdl, const OString&, rIdent, void)
+{
+    SmFontPickListBox *pActiveListBox;
+
+    bool bHideCheckboxes = false;
+    if (rIdent == "variables")
+        pActiveListBox = m_xVariableFont.get();
+    else if (rIdent == "functions")
+        pActiveListBox = m_xFunctionFont.get();
+    else if (rIdent == "numbers")
+        pActiveListBox = m_xNumberFont.get();
+    else if (rIdent == "text")
+        pActiveListBox = m_xTextFont.get();
+    else if (rIdent == "serif")
+    {
+        pActiveListBox = m_xSerifFont.get();
+        bHideCheckboxes = true;
+    }
+    else if (rIdent == "sansserif")
+    {
+        pActiveListBox = m_xSansFont.get();
+        bHideCheckboxes = true;
+    }
+    else if (rIdent == "fixedwidth")
+    {
+        pActiveListBox = m_xFixedFont.get();
+        bHideCheckboxes = true;
+    }
+    else
+        pActiveListBox = nullptr;
+
+    if (pActiveListBox)
+    {
+        SmFontDialog aFontDialog(m_xDialog.get(), pFontListDev, bHideCheckboxes);
+
+        pActiveListBox->WriteTo(aFontDialog);
+        if (aFontDialog.run() == RET_OK)
+            pActiveListBox->ReadFrom(aFontDialog);
+    }
+}
+
+IMPL_LINK_NOARG(SmFontTypeDialog, DefaultButtonClickHdl, weld::Button&, void)
+{
+    SaveDefaultsQuery aQuery(m_xDialog.get());
+    if (aQuery.run() == RET_YES)
+    {
+        SmModule *pp = SM_MOD();
+        SmFormat aFmt( pp->GetConfig()->GetStandardFormat() );
+        WriteTo( aFmt );
+        pp->GetConfig()->SetStandardFormat( aFmt, true );
+    }
+}
+
+SmFontTypeDialog::SmFontTypeDialog(weld::Window* pParent, OutputDevice *pFntListDevice)
+    : GenericDialogController(pParent, "modules/smath/ui/fonttypedialog.ui", "FontsDialog")
+    , pFontListDev(pFntListDevice)
+    , m_xVariableFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("variableCB")))
+    , m_xFunctionFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("functionCB")))
+    , m_xNumberFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("numberCB")))
+    , m_xTextFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("textCB")))
+    , m_xSerifFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("serifCB")))
+    , m_xSansFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("sansCB")))
+    , m_xFixedFont(new SmFontPickListBox(m_xBuilder->weld_combo_box("fixedCB")))
+    , m_xMenuButton(m_xBuilder->weld_menu_button("modify"))
+    , m_xDefaultButton(m_xBuilder->weld_button("default"))
+{
+    m_xDefaultButton->connect_clicked(LINK(this, SmFontTypeDialog, DefaultButtonClickHdl));
+    m_xMenuButton->connect_selected(LINK(this, SmFontTypeDialog, MenuSelectHdl));
+}
+
+SmFontTypeDialog::~SmFontTypeDialog()
+{
+}
+
+void SmFontTypeDialog::ReadFrom(const SmFormat &rFormat)
+{
+    SmModule *pp = SM_MOD();
+
+    *m_xVariableFont = pp->GetConfig()->GetFontPickList(FNT_VARIABLE);
+    *m_xFunctionFont = pp->GetConfig()->GetFontPickList(FNT_FUNCTION);
+    *m_xNumberFont   = pp->GetConfig()->GetFontPickList(FNT_NUMBER);
+    *m_xTextFont     = pp->GetConfig()->GetFontPickList(FNT_TEXT);
+    *m_xSerifFont    = pp->GetConfig()->GetFontPickList(FNT_SERIF);
+    *m_xSansFont     = pp->GetConfig()->GetFontPickList(FNT_SANS);
+    *m_xFixedFont    = pp->GetConfig()->GetFontPickList(FNT_FIXED);
+
+    m_xVariableFont->Insert( rFormat.GetFont(FNT_VARIABLE) );
+    m_xFunctionFont->Insert( rFormat.GetFont(FNT_FUNCTION) );
+    m_xNumberFont->Insert( rFormat.GetFont(FNT_NUMBER) );
+    m_xTextFont->Insert( rFormat.GetFont(FNT_TEXT) );
+    m_xSerifFont->Insert( rFormat.GetFont(FNT_SERIF) );
+    m_xSansFont->Insert( rFormat.GetFont(FNT_SANS) );
+    m_xFixedFont->Insert( rFormat.GetFont(FNT_FIXED) );
+}
+
+
+void SmFontTypeDialog::WriteTo(SmFormat &rFormat) const
+{
+    SmModule *pp = SM_MOD();
+
+    pp->GetConfig()->GetFontPickList(FNT_VARIABLE) = *m_xVariableFont;
+    pp->GetConfig()->GetFontPickList(FNT_FUNCTION) = *m_xFunctionFont;
+    pp->GetConfig()->GetFontPickList(FNT_NUMBER)   = *m_xNumberFont;
+    pp->GetConfig()->GetFontPickList(FNT_TEXT)     = *m_xTextFont;
+    pp->GetConfig()->GetFontPickList(FNT_SERIF)    = *m_xSerifFont;
+    pp->GetConfig()->GetFontPickList(FNT_SANS)     = *m_xSansFont;
+    pp->GetConfig()->GetFontPickList(FNT_FIXED)    = *m_xFixedFont;
+
+    rFormat.SetFont( FNT_VARIABLE, m_xVariableFont->Get() );
+    rFormat.SetFont( FNT_FUNCTION, m_xFunctionFont->Get() );
+    rFormat.SetFont( FNT_NUMBER,   m_xNumberFont->Get() );
+    rFormat.SetFont( FNT_TEXT,     m_xTextFont->Get() );
+    rFormat.SetFont( FNT_SERIF,    m_xSerifFont->Get() );
+    rFormat.SetFont( FNT_SANS,     m_xSansFont->Get() );
+    rFormat.SetFont( FNT_FIXED,    m_xFixedFont->Get() );
+
+    rFormat.RequestApplyChanges();
+}
+
+/**************************************************************************/
+
+namespace {
+
+struct FieldMinMax
+{
+    sal_uInt16 nMin, nMax;
+};
+
+}
+
+// Data for min and max values of the 4 metric fields
+// for each of the 10 categories
+static const FieldMinMax pMinMaxData[10][4] =
+{
+    // 0
+    {{ 0, 200 },    { 0, 200 },     { 0, 100 },     { 0, 0 }},
+    // 1
+    {{ 0, 100 },    { 0, 100 },     { 0, 0 },       { 0, 0 }},
+    // 2
+    {{ 0, 100 },    { 0, 100 },     { 0, 0 },       { 0, 0 }},
+    // 3
+    {{ 0, 100 },    { 1, 100 },     { 0, 0 },       { 0, 0 }},
+    // 4
+    {{ 0, 100 },    { 0, 100 },     { 0, 0 },       { 0, 0 }},
+    // 5
+    {{ 0, 100 },    { 0, 100 },     { 0, 0 },       { 0, 100 }},
+    // 6
+    {{ 0, 300 },    { 0, 300 },     { 0, 0 },       { 0, 0 }},
+    // 7
+    {{ 0, 100 },    { 0, 100 },     { 0, 0 },       { 0, 0 }},
+    // 8
+    {{ 0, 100 },    { 0, 100 },     { 0, 0 },       { 0, 0 }},
+    // 9
+    {{ 0, 10000 },  { 0, 10000 },   { 0, 10000 },   { 0, 10000 }}
+};
+
+SmCategoryDesc::SmCategoryDesc(weld::Builder& rBuilder, sal_uInt16 nCategoryIdx)
+{
+    ++nCategoryIdx;
+    std::unique_ptr<weld::Label> xTitle(rBuilder.weld_label(OString::number(nCategoryIdx)+"title"));
+    if (xTitle)
+    {
+        Name = xTitle->get_label();
+    }
+    for (int i = 0; i < 4; ++i)
+    {
+        std::unique_ptr<weld::Label> xLabel(rBuilder.weld_label(OString::number(nCategoryIdx)+"label"+OString::number(i+1)));
+
+        if (xLabel)
+        {
+            Strings[i] = xLabel->get_label();
+            Graphics[i] = rBuilder.weld_widget(OString::number(nCategoryIdx)+"image"+OString::number(i+1));
+        }
+        else
+        {
+            Strings[i].clear();
+            Graphics[i].reset();
+        }
+
+        const FieldMinMax& rMinMax = pMinMaxData[ nCategoryIdx-1 ][i];
+        Value[i] = Minimum[i] = rMinMax.nMin;
+        Maximum[i] = rMinMax.nMax;
+    }
+}
+
+SmCategoryDesc::~SmCategoryDesc()
+{
+}
+
+/**************************************************************************/
+
+IMPL_LINK( SmDistanceDialog, GetFocusHdl, weld::Widget&, rControl, void )
+{
+    if (!m_xCategories[nActiveCategory])
+        return;
+
+    sal_uInt16  i;
+
+    if (&rControl == &m_xMetricField1->get_widget())
+        i = 0;
+    else if (&rControl == &m_xMetricField2->get_widget())
+        i = 1;
+    else if (&rControl == &m_xMetricField3->get_widget())
+        i = 2;
+    else if (&rControl == &m_xMetricField4->get_widget())
+        i = 3;
+    else
+        return;
+    if (m_pCurrentImage)
+        m_pCurrentImage->hide();
+    m_pCurrentImage = m_xCategories[nActiveCategory]->GetGraphic(i);
+    m_pCurrentImage->show();
+}
+
+IMPL_LINK(SmDistanceDialog, MenuSelectHdl, const OString&, rId, void)
+{
+    assert(rId.startsWith("menuitem"));
+    SetCategory(rId.replaceFirst("menuitem", "").toInt32() - 1);
+}
+
+IMPL_LINK_NOARG( SmDistanceDialog, DefaultButtonClickHdl, weld::Button&, void )
+{
+    SaveDefaultsQuery aQuery(m_xDialog.get());
+    if (aQuery.run() == RET_YES)
+    {
+        SmModule *pp = SM_MOD();
+        SmFormat aFmt( pp->GetConfig()->GetStandardFormat() );
+        WriteTo( aFmt );
+        pp->GetConfig()->SetStandardFormat( aFmt );
+    }
+}
+
+IMPL_LINK( SmDistanceDialog, CheckBoxClickHdl, weld::ToggleButton&, rCheckBox, void )
+{
+    if (&rCheckBox == m_xCheckBox1.get())
+    {
+        bool bChecked = m_xCheckBox1->get_active();
+        m_xFixedText4->set_sensitive( bChecked );
+        m_xMetricField4->set_sensitive( bChecked );
+    }
+}
+
+void SmDistanceDialog::SetCategory(sal_uInt16 nCategory)
+{
+    assert(nCategory < NOCATEGORIES && "Sm: wrong category number in SmDistanceDialog");
+
+    // array to convert category- and metricfield-number in help ids.
+    // 0 is used in case of unused combinations.
+    assert(NOCATEGORIES == 10 && "Sm : array doesn't fit into the number of categories");
+    static const char * aCatMf2Hid[10][4] =
+    {
+        { HID_SMA_DEFAULT_DIST,         HID_SMA_LINE_DIST,          HID_SMA_ROOT_DIST, nullptr },
+        { HID_SMA_SUP_DIST,             HID_SMA_SUB_DIST ,          nullptr, nullptr },
+        { HID_SMA_NUMERATOR_DIST,       HID_SMA_DENOMINATOR_DIST,   nullptr, nullptr },
+        { HID_SMA_FRACLINE_EXCWIDTH,    HID_SMA_FRACLINE_LINEWIDTH, nullptr, nullptr },
+        { HID_SMA_UPPERLIMIT_DIST,      HID_SMA_LOWERLIMIT_DIST,    nullptr, nullptr },
+        { HID_SMA_BRACKET_EXCHEIGHT,    HID_SMA_BRACKET_DIST,       nullptr, HID_SMA_BRACKET_EXCHEIGHT2 },
+        { HID_SMA_MATRIXROW_DIST,       HID_SMA_MATRIXCOL_DIST,     nullptr, nullptr },
+        { HID_SMA_ATTRIBUT_DIST,        HID_SMA_INTERATTRIBUT_DIST, nullptr, nullptr },
+        { HID_SMA_OPERATOR_EXCHEIGHT,   HID_SMA_OPERATOR_DIST,      nullptr, nullptr },
+        { HID_SMA_LEFTBORDER_DIST,      HID_SMA_RIGHTBORDER_DIST,   HID_SMA_UPPERBORDER_DIST, HID_SMA_LOWERBORDER_DIST }
+    };
+
+    // array to help iterate over the controls
+    std::pair<weld::Label*, weld::MetricSpinButton*> const aWin[4] =
+    {
+        { m_xFixedText1.get(), m_xMetricField1.get() },
+        { m_xFixedText2.get(), m_xMetricField2.get() },
+        { m_xFixedText3.get(), m_xMetricField3.get() },
+        { m_xFixedText4.get(), m_xMetricField4.get() }
+    };
+
+    SmCategoryDesc *pCat;
+
+    // remember the (maybe new) settings of the active SmCategoryDesc
+    // before switching to the new one
+    if (nActiveCategory != CATEGORY_NONE)
+    {
+        pCat = m_xCategories[nActiveCategory].get();
+        pCat->SetValue(0, sal::static_int_cast<sal_uInt16>(m_xMetricField1->get_value(FieldUnit::NONE)));
+        pCat->SetValue(1, sal::static_int_cast<sal_uInt16>(m_xMetricField2->get_value(FieldUnit::NONE)));
+        pCat->SetValue(2, sal::static_int_cast<sal_uInt16>(m_xMetricField3->get_value(FieldUnit::NONE)));
+        pCat->SetValue(3, sal::static_int_cast<sal_uInt16>(m_xMetricField4->get_value(FieldUnit::NONE)));
+
+        if (nActiveCategory == 5)
+            bScaleAllBrackets = m_xCheckBox1->get_active();
+
+        m_xMenuButton->set_item_active("menuitem" + OString::number(nActiveCategory + 1), false);
+    }
+
+    // activation/deactivation of the associated controls depending on the chosen category
+    bool  bActive;
+    for (sal_uInt16 i = 0;  i < 4;  i++)
+    {
+        weld::Label *pFT = aWin[i].first;
+        weld::MetricSpinButton *pMF = aWin[i].second;
+
+        // To determine which Controls should be active, the existence
+        // of an associated HelpID is checked
+        bActive = aCatMf2Hid[nCategory][i] != nullptr;
+
+        pFT->set_visible(bActive);
+        pFT->set_sensitive(bActive);
+        pMF->set_visible(bActive);
+        pMF->set_sensitive(bActive);
+
+        // set measurement unit and number of decimal places
+        FieldUnit  eUnit;
+        sal_uInt16     nDigits;
+        if (nCategory < 9)
+        {
+            eUnit = FieldUnit::PERCENT;
+            nDigits = 0;
+        }
+        else
+        {
+            eUnit   = FieldUnit::MM_100TH;
+            nDigits = 2;
+        }
+        pMF->set_unit(eUnit);            // changes the value
+        pMF->set_digits(nDigits);
+
+        if (bActive)
+        {
+            pCat = m_xCategories[nCategory].get();
+            pFT->set_label(pCat->GetString(i));
+
+            pMF->set_range(pCat->GetMinimum(i), pCat->GetMaximum(i), FieldUnit::NONE);
+            pMF->set_value(pCat->GetValue(i), FieldUnit::NONE);
+
+            pMF->set_help_id(aCatMf2Hid[nCategory][i]);
+        }
+    }
+    // activate the CheckBox and the associated MetricField if we're dealing with the brackets menu
+    bActive = nCategory == 5;
+    m_xCheckBox1->set_visible(bActive);
+    m_xCheckBox1->set_sensitive(bActive);
+    if (bActive)
+    {
+        m_xCheckBox1->set_active(bScaleAllBrackets);
+
+        bool bChecked = m_xCheckBox1->get_active();
+        m_xFixedText4->set_sensitive( bChecked );
+        m_xMetricField4->set_sensitive( bChecked );
+    }
+
+    m_xMenuButton->set_item_active("menuitem" + OString::number(nCategory + 1), true);
+    m_xFrame->set_label(m_xCategories[nCategory]->GetName());
+
+    nActiveCategory = nCategory;
+
+    m_xMetricField1->grab_focus();
+}
+
+SmDistanceDialog::SmDistanceDialog(weld::Window *pParent)
+    : GenericDialogController(pParent, "modules/smath/ui/spacingdialog.ui", "SpacingDialog")
+    , m_xFrame(m_xBuilder->weld_frame("template"))
+    , m_xFixedText1(m_xBuilder->weld_label("label1"))
+    , m_xMetricField1(m_xBuilder->weld_metric_spin_button("spinbutton1", FieldUnit::CM))
+    , m_xFixedText2(m_xBuilder->weld_label("label2"))
+    , m_xMetricField2(m_xBuilder->weld_metric_spin_button("spinbutton2", FieldUnit::CM))
+    , m_xFixedText3(m_xBuilder->weld_label("label3"))
+    , m_xMetricField3(m_xBuilder->weld_metric_spin_button("spinbutton3", FieldUnit::CM))
+    , m_xCheckBox1(m_xBuilder->weld_check_button("checkbutton"))
+    , m_xFixedText4(m_xBuilder->weld_label("label4"))
+    , m_xMetricField4(m_xBuilder->weld_metric_spin_button("spinbutton4", FieldUnit::CM))
+    , m_xMenuButton(m_xBuilder->weld_menu_button("category"))
+    , m_xDefaultButton(m_xBuilder->weld_button("default"))
+    , m_xBitmap(m_xBuilder->weld_widget("image"))
+    , m_pCurrentImage(m_xBitmap.get())
+{
+    for (sal_uInt16 i = 0; i < NOCATEGORIES; ++i)
+        m_xCategories[i].reset( new SmCategoryDesc(*m_xBuilder, i) );
+    nActiveCategory   = CATEGORY_NONE;
+    bScaleAllBrackets = false;
+
+    m_xMetricField1->connect_focus_in(LINK(this, SmDistanceDialog, GetFocusHdl));
+    m_xMetricField2->connect_focus_in(LINK(this, SmDistanceDialog, GetFocusHdl));
+    m_xMetricField3->connect_focus_in(LINK(this, SmDistanceDialog, GetFocusHdl));
+    m_xMetricField4->connect_focus_in(LINK(this, SmDistanceDialog, GetFocusHdl));
+    m_xCheckBox1->connect_toggled(LINK(this, SmDistanceDialog, CheckBoxClickHdl));
+    m_xMenuButton->connect_selected(LINK(this, SmDistanceDialog, MenuSelectHdl));
+    m_xDefaultButton->connect_clicked(LINK(this, SmDistanceDialog, DefaultButtonClickHdl));
+
+    //set the initial size, with max visible widgets visible, as preferred size
+    m_xDialog->set_size_request(-1, m_xDialog->get_preferred_size().Height());
+}
+
+SmDistanceDialog::~SmDistanceDialog()
+{
+}
+
+void SmDistanceDialog::ReadFrom(const SmFormat &rFormat)
+{
+    m_xCategories[0]->SetValue(0, rFormat.GetDistance(DIS_HORIZONTAL));
+    m_xCategories[0]->SetValue(1, rFormat.GetDistance(DIS_VERTICAL));
+    m_xCategories[0]->SetValue(2, rFormat.GetDistance(DIS_ROOT));
+    m_xCategories[1]->SetValue(0, rFormat.GetDistance(DIS_SUPERSCRIPT));
+    m_xCategories[1]->SetValue(1, rFormat.GetDistance(DIS_SUBSCRIPT));
+    m_xCategories[2]->SetValue(0, rFormat.GetDistance(DIS_NUMERATOR));
+    m_xCategories[2]->SetValue(1, rFormat.GetDistance(DIS_DENOMINATOR));
+    m_xCategories[3]->SetValue(0, rFormat.GetDistance(DIS_FRACTION));
+    m_xCategories[3]->SetValue(1, rFormat.GetDistance(DIS_STROKEWIDTH));
+    m_xCategories[4]->SetValue(0, rFormat.GetDistance(DIS_UPPERLIMIT));
+    m_xCategories[4]->SetValue(1, rFormat.GetDistance(DIS_LOWERLIMIT));
+    m_xCategories[5]->SetValue(0, rFormat.GetDistance(DIS_BRACKETSIZE));
+    m_xCategories[5]->SetValue(1, rFormat.GetDistance(DIS_BRACKETSPACE));
+    m_xCategories[5]->SetValue(3, rFormat.GetDistance(DIS_NORMALBRACKETSIZE));
+    m_xCategories[6]->SetValue(0, rFormat.GetDistance(DIS_MATRIXROW));
+    m_xCategories[6]->SetValue(1, rFormat.GetDistance(DIS_MATRIXCOL));
+    m_xCategories[7]->SetValue(0, rFormat.GetDistance(DIS_ORNAMENTSIZE));
+    m_xCategories[7]->SetValue(1, rFormat.GetDistance(DIS_ORNAMENTSPACE));
+    m_xCategories[8]->SetValue(0, rFormat.GetDistance(DIS_OPERATORSIZE));
+    m_xCategories[8]->SetValue(1, rFormat.GetDistance(DIS_OPERATORSPACE));
+    m_xCategories[9]->SetValue(0, rFormat.GetDistance(DIS_LEFTSPACE));
+    m_xCategories[9]->SetValue(1, rFormat.GetDistance(DIS_RIGHTSPACE));
+    m_xCategories[9]->SetValue(2, rFormat.GetDistance(DIS_TOPSPACE));
+    m_xCategories[9]->SetValue(3, rFormat.GetDistance(DIS_BOTTOMSPACE));
+
+    bScaleAllBrackets = rFormat.IsScaleNormalBrackets();
+
+    // force update (even of category 0) by setting nActiveCategory to a
+    // non-existent category number
+    nActiveCategory = CATEGORY_NONE;
+    SetCategory(0);
+}
+
+
+void SmDistanceDialog::WriteTo(SmFormat &rFormat) /*const*/
+{
+    // TODO can they actually be different?
+    // if that's not the case 'const' could be used above!
+    SetCategory(nActiveCategory);
+
+    rFormat.SetDistance( DIS_HORIZONTAL,        m_xCategories[0]->GetValue(0) );
+    rFormat.SetDistance( DIS_VERTICAL,          m_xCategories[0]->GetValue(1) );
+    rFormat.SetDistance( DIS_ROOT,              m_xCategories[0]->GetValue(2) );
+    rFormat.SetDistance( DIS_SUPERSCRIPT,       m_xCategories[1]->GetValue(0) );
+    rFormat.SetDistance( DIS_SUBSCRIPT,         m_xCategories[1]->GetValue(1) );
+    rFormat.SetDistance( DIS_NUMERATOR,         m_xCategories[2]->GetValue(0) );
+    rFormat.SetDistance( DIS_DENOMINATOR,       m_xCategories[2]->GetValue(1) );
+    rFormat.SetDistance( DIS_FRACTION,          m_xCategories[3]->GetValue(0) );
+    rFormat.SetDistance( DIS_STROKEWIDTH,       m_xCategories[3]->GetValue(1) );
+    rFormat.SetDistance( DIS_UPPERLIMIT,        m_xCategories[4]->GetValue(0) );
+    rFormat.SetDistance( DIS_LOWERLIMIT,        m_xCategories[4]->GetValue(1) );
+    rFormat.SetDistance( DIS_BRACKETSIZE,       m_xCategories[5]->GetValue(0) );
+    rFormat.SetDistance( DIS_BRACKETSPACE,      m_xCategories[5]->GetValue(1) );
+    rFormat.SetDistance( DIS_MATRIXROW,         m_xCategories[6]->GetValue(0) );
+    rFormat.SetDistance( DIS_MATRIXCOL,         m_xCategories[6]->GetValue(1) );
+    rFormat.SetDistance( DIS_ORNAMENTSIZE,      m_xCategories[7]->GetValue(0) );
+    rFormat.SetDistance( DIS_ORNAMENTSPACE,     m_xCategories[7]->GetValue(1) );
+    rFormat.SetDistance( DIS_OPERATORSIZE,      m_xCategories[8]->GetValue(0) );
+    rFormat.SetDistance( DIS_OPERATORSPACE,     m_xCategories[8]->GetValue(1) );
+    rFormat.SetDistance( DIS_LEFTSPACE,         m_xCategories[9]->GetValue(0) );
+    rFormat.SetDistance( DIS_RIGHTSPACE,        m_xCategories[9]->GetValue(1) );
+    rFormat.SetDistance( DIS_TOPSPACE,          m_xCategories[9]->GetValue(2) );
+    rFormat.SetDistance( DIS_BOTTOMSPACE,       m_xCategories[9]->GetValue(3) );
+    rFormat.SetDistance( DIS_NORMALBRACKETSIZE, m_xCategories[5]->GetValue(3) );
+
+    rFormat.SetScaleNormalBrackets( bScaleAllBrackets );
+
+    rFormat.RequestApplyChanges();
+}
+
+IMPL_LINK_NOARG( SmAlignDialog, DefaultButtonClickHdl, weld::Button&, void )
+{
+    SaveDefaultsQuery aQuery(m_xDialog.get());
+    if (aQuery.run() == RET_YES)
+    {
+        SmModule *pp = SM_MOD();
+        SmFormat aFmt( pp->GetConfig()->GetStandardFormat() );
+        WriteTo( aFmt );
+        pp->GetConfig()->SetStandardFormat( aFmt );
+    }
+}
+
+SmAlignDialog::SmAlignDialog(weld::Window* pParent)
+    : GenericDialogController(pParent, "modules/smath/ui/alignmentdialog.ui", "AlignmentDialog")
+    , m_xLeft(m_xBuilder->weld_radio_button("left"))
+    , m_xCenter(m_xBuilder->weld_radio_button("center"))
+    , m_xRight(m_xBuilder->weld_radio_button("right"))
+    , m_xDefaultButton(m_xBuilder->weld_button("default"))
+{
+    m_xDefaultButton->connect_clicked(LINK(this, SmAlignDialog, DefaultButtonClickHdl));
+}
+
+SmAlignDialog::~SmAlignDialog()
+{
+}
+
+void SmAlignDialog::ReadFrom(const SmFormat &rFormat)
+{
+    switch (rFormat.GetHorAlign())
+    {
+        case SmHorAlign::Left:
+            m_xLeft->set_active(true);
+            break;
+        case SmHorAlign::Center:
+            m_xCenter->set_active(true);
+            break;
+        case SmHorAlign::Right:
+            m_xRight->set_active(true);
+            break;
+    }
+}
+
+void SmAlignDialog::WriteTo(SmFormat &rFormat) const
+{
+    if (m_xLeft->get_active())
+        rFormat.SetHorAlign(SmHorAlign::Left);
+    else if (m_xRight->get_active())
+        rFormat.SetHorAlign(SmHorAlign::Right);
+    else
+        rFormat.SetHorAlign(SmHorAlign::Center);
+
+    rFormat.RequestApplyChanges();
+}
+
+SmShowSymbolSet::SmShowSymbolSet(std::unique_ptr<weld::ScrolledWindow> pScrolledWindow)
+    : nLen(0)
+    , nRows(0)
+    , nColumns(0)
+    , nXOffset(0)
+    , nYOffset(0)
+    , nSelectSymbol(SYMBOL_NONE)
+    , m_xScrolledWindow(std::move(pScrolledWindow))
+{
+    m_xScrolledWindow->set_user_managed_scrolling();
+    m_xScrolledWindow->connect_vadjustment_changed(LINK(this, SmShowSymbolSet, ScrollHdl));
+}
+
+Point SmShowSymbolSet::OffsetPoint(const Point &rPoint) const
+{
+    return Point(rPoint.X() + nXOffset, rPoint.Y() + nYOffset);
+}
+
+void SmShowSymbolSet::Resize()
+{
+    CustomWidgetController::Resize();
+    Size aWinSize(GetOutputSizePixel());
+    if (aWinSize != m_aOldSize)
+    {
+        calccols(GetDrawingArea()->get_ref_device());
+        m_aOldSize = aWinSize;
+    }
+}
+
+void SmShowSymbolSet::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
+{
+    Color aBackgroundColor;
+    Color aTextColor;
+    lclGetSettingColors(aBackgroundColor, aTextColor);
+
+    rRenderContext.SetBackground(Wallpaper(aBackgroundColor));
+    rRenderContext.SetTextColor(aTextColor);
+
+    rRenderContext.Push(PushFlags::MAPMODE);
+
+    // set MapUnit for which 'nLen' has been calculated
+    rRenderContext.SetMapMode(MapMode(MapUnit::MapPixel));
+
+    sal_uInt16 v = sal::static_int_cast< sal_uInt16 >(m_xScrolledWindow->vadjustment_get_value() * nColumns);
+    size_t nSymbols = aSymbolSet.size();
+
+    Color aTxtColor(rRenderContext.GetTextColor());
+    for (size_t i = v; i < nSymbols ; i++)
+    {
+        SmSym aSymbol(*aSymbolSet[i]);
+        vcl::Font aFont(aSymbol.GetFace());
+        aFont.SetAlignment(ALIGN_TOP);
+
+        // taking a FontSize which is a bit smaller (compared to nLen) in order to have a buffer
+        // (hopefully enough for left and right, too)
+        aFont.SetFontSize(Size(0, nLen - (nLen / 3)));
+        rRenderContext.SetFont(aFont);
+        // keep text color
+        rRenderContext.SetTextColor(aTxtColor);
+
+        int nIV = i - v;
+        sal_UCS4 cChar = aSymbol.GetCharacter();
+        OUString aText(&cChar, 1);
+        Size  aSize(rRenderContext.GetTextWidth( aText ), rRenderContext.GetTextHeight());
+
+        Point aPoint((nIV % nColumns) * nLen + (nLen - aSize.Width()) / 2,
+                     (nIV / nColumns) * nLen + (nLen - aSize.Height()) / 2);
+
+        rRenderContext.DrawText(OffsetPoint(aPoint), aText);
+    }
+
+    if (nSelectSymbol != SYMBOL_NONE)
+    {
+        Point aPoint(((nSelectSymbol - v) % nColumns) * nLen,
+                                 ((nSelectSymbol - v) / nColumns) * nLen);
+
+        rRenderContext.Invert(tools::Rectangle(OffsetPoint(aPoint), Size(nLen, nLen)));
+
+    }
+
+    rRenderContext.Pop();
+}
+
+bool SmShowSymbolSet::MouseButtonDown(const MouseEvent& rMEvt)
+{
+    GrabFocus();
+
+    Size aOutputSize(nColumns * nLen, nRows * nLen);
+    aOutputSize.AdjustWidth(nXOffset );
+    aOutputSize.AdjustHeight(nYOffset );
+    Point aPoint(rMEvt.GetPosPixel());
+    aPoint.AdjustX( -nXOffset );
+    aPoint.AdjustY( -nYOffset );
+
+    if (rMEvt.IsLeft() && tools::Rectangle(Point(0, 0), aOutputSize).IsInside(rMEvt.GetPosPixel()))
+    {
+        long nPos = (aPoint.Y() / nLen) * nColumns + (aPoint.X() / nLen) +
+                      m_xScrolledWindow->vadjustment_get_value() * nColumns;
+        SelectSymbol( sal::static_int_cast< sal_uInt16 >(nPos) );
+
+        aSelectHdlLink.Call(*this);
+
+        if (rMEvt.GetClicks() > 1)
+            aDblClickHdlLink.Call(*this);
+    }
+
+    return true;
+}
+
+bool SmShowSymbolSet::KeyInput(const KeyEvent& rKEvt)
+{
+    sal_uInt16 n = nSelectSymbol;
+
+    if (n != SYMBOL_NONE)
+    {
+        switch (rKEvt.GetKeyCode().GetCode())
+        {
+            case KEY_DOWN:      n = n + nColumns;   break;
+            case KEY_UP:        n = n - nColumns;   break;
+            case KEY_LEFT:      n -= 1; break;
+            case KEY_RIGHT:     n += 1; break;
+            case KEY_HOME:      n  = 0; break;
+            case KEY_END:       n  = static_cast< sal_uInt16 >(aSymbolSet.size() - 1);   break;
+            case KEY_PAGEUP:    n -= nColumns * nRows;  break;
+            case KEY_PAGEDOWN:  n += nColumns * nRows;  break;
+            default:
+                return false;
+        }
+    }
+    else
+        n = 0;
+
+    if (n >= aSymbolSet.size())
+        n = nSelectSymbol;
+
+    // adjust scrollbar
+    if ((n < sal::static_int_cast<sal_uInt16>(m_xScrolledWindow->vadjustment_get_value() * nColumns)) ||
+        (n >= sal::static_int_cast<sal_uInt16>((m_xScrolledWindow->vadjustment_get_value() + nRows) * nColumns)))
+    {
+        m_xScrolledWindow->vadjustment_set_value(n / nColumns);
+        Invalidate();
+    }
+
+    SelectSymbol(n);
+    aSelectHdlLink.Call(*this);
+
+    return true;
+}
+
+void SmShowSymbolSet::calccols(const vcl::RenderContext& rRenderContext)
+{
+    // Height of 16pt in pixels (matching 'aOutputSize')
+    nLen = rRenderContext.LogicToPixel(Size(0, 16), MapMode(MapUnit::MapPoint)).Height();
+
+    Size aOutputSize(GetOutputSizePixel());
+
+    nColumns = aOutputSize.Width() / nLen;
+    nRows = aOutputSize.Height() / nLen;
+    nColumns = std::max<long>(1, nColumns);
+    nRows = std::max<long>(1, nRows);
+
+    nXOffset = (aOutputSize.Width() - (nColumns * nLen)) / 2;
+    nYOffset = (aOutputSize.Height() - (nRows * nLen)) / 2;
+
+    SetScrollBarRange();
+}
+
+void SmShowSymbolSet::SetSymbolSet(const SymbolPtrVec_t& rSymbolSet)
+{
+    aSymbolSet = rSymbolSet;
+    SetScrollBarRange();
+    Invalidate();
+}
+
+void SmShowSymbolSet::SetScrollBarRange()
+{
+    const int nLastRow = (aSymbolSet.size() - 1 + nColumns) / nColumns;
+    m_xScrolledWindow->vadjustment_configure(m_xScrolledWindow->vadjustment_get_value(), 0, nLastRow, 1, nRows - 1, nRows);
+    Invalidate();
+}
+
+void SmShowSymbolSet::SelectSymbol(sal_uInt16 nSymbol)
+{
+    int v = m_xScrolledWindow->vadjustment_get_value() * nColumns;
+
+    if (nSelectSymbol != SYMBOL_NONE && nColumns)
+    {
+        Point aPoint(OffsetPoint(Point(((nSelectSymbol - v) % nColumns) * nLen,
+                                       ((nSelectSymbol - v) / nColumns) * nLen)));
+        Invalidate(tools::Rectangle(aPoint, Size(nLen, nLen)));
+    }
+
+    if (nSymbol < aSymbolSet.size())
+        nSelectSymbol = nSymbol;
+
+    if (aSymbolSet.empty())
+        nSelectSymbol = SYMBOL_NONE;
+
+    if (nSelectSymbol != SYMBOL_NONE && nColumns)
+    {
+        Point aPoint(OffsetPoint(Point(((nSelectSymbol - v) % nColumns) * nLen,
+                                       ((nSelectSymbol - v) / nColumns) * nLen)));
+        Invalidate(tools::Rectangle(aPoint, Size(nLen, nLen)));
+    }
+
+    if (!nColumns)
+        Invalidate();
+}
+
+IMPL_LINK_NOARG(SmShowSymbolSet, ScrollHdl, weld::ScrolledWindow&, void)
+{
+    Invalidate();
+}
+
+SmShowSymbol::SmShowSymbol()
+{
+}
+
+void SmShowSymbol::setFontSize(vcl::Font &rFont) const
+{
+    Size aSize(GetOutputSizePixel());
+    rFont.SetFontSize(Size(0, aSize.Height() - aSize.Height() / 3));
+}
+
+void SmShowSymbol::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
+{
+    Color aBackgroundColor;
+    Color aTextColor;
+    lclGetSettingColors(aBackgroundColor, aTextColor);
+    rRenderContext.SetBackground(Wallpaper(aBackgroundColor));
+    rRenderContext.SetTextColor(aTextColor);
+    rRenderContext.Erase();
+
+    vcl::Font aFont(GetFont());
+    setFontSize(aFont);
+    rRenderContext.SetFont(aFont);
+
+    const OUString &rText = GetText();
+    Size aTextSize(rRenderContext.GetTextWidth(rText), rRenderContext.GetTextHeight());
+
+    rRenderContext.DrawText(Point((rRenderContext.GetOutputSize().Width()  - aTextSize.Width())  / 2,
+                                  (rRenderContext.GetOutputSize().Height() * 7 / 10)), rText);
+}
+
+bool SmShowSymbol::MouseButtonDown(const MouseEvent& rMEvt)
+{
+    if (rMEvt.GetClicks() > 1)
+        aDblClickHdlLink.Call(*this);
+    return true;
+}
+
+void SmShowSymbol::SetSymbol(const SmSym *pSymbol)
+{
+    if (pSymbol)
+    {
+        vcl::Font aFont(pSymbol->GetFace());
+        aFont.SetAlignment(ALIGN_BASELINE);
+        SetFont(aFont);
+
+        sal_UCS4 cChar = pSymbol->GetCharacter();
+        OUString aText(&cChar, 1);
+        SetText( aText );
+    }
+
+    Invalidate();
+}
+
+void SmSymbolDialog::FillSymbolSets()
+    // populate the entries of possible SymbolsSets in the dialog with
+    // current values of the SymbolSet manager but selects none of those
+{
+    m_xSymbolSets->clear();
+    m_xSymbolSets->set_active(-1);
+
+    std::set< OUString >  aSymbolSetNames( rSymbolMgr.GetSymbolSetNames() );
+    for (const auto& rSymbolSetName : aSymbolSetNames)
+        m_xSymbolSets->append_text(rSymbolSetName);
+}
+
+IMPL_LINK_NOARG( SmSymbolDialog, SymbolSetChangeHdl, weld::ComboBox&, void )
+{
+    SelectSymbolSet(m_xSymbolSets->get_active_text());
+}
+
+IMPL_LINK_NOARG( SmSymbolDialog, SymbolChangeHdl, SmShowSymbolSet&, void )
+{
+    SelectSymbol(m_xSymbolSetDisplay->GetSelectSymbol());
+}
+
+IMPL_LINK_NOARG(SmSymbolDialog, EditClickHdl, weld::Button&, void)
+{
+    SmSymDefineDialog aDialog(m_xDialog.get(), pFontListDev, rSymbolMgr);
+
+    // set current symbol and SymbolSet for the new dialog
+    const OUString  aSymSetName (m_xSymbolSets->get_active_text()),
+                    aSymName    (m_xSymbolName->get_label());
+    aDialog.SelectOldSymbolSet(aSymSetName);
+    aDialog.SelectOldSymbol(aSymName);
+    aDialog.SelectSymbolSet(aSymSetName);
+    aDialog.SelectSymbol(aSymName);
+
+    // remember old SymbolSet
+    OUString  aOldSymbolSet (m_xSymbolSets->get_active_text());
+
+    sal_uInt16 nSymPos = m_xSymbolSetDisplay->GetSelectSymbol();
+
+    // adapt dialog to data of the SymbolSet manager, which might have changed
+    if (aDialog.run() == RET_OK && rSymbolMgr.IsModified())
+    {
+        rSymbolMgr.Save();
+        FillSymbolSets();
+    }
+
+    // if the old SymbolSet doesn't exist anymore, go to the first one SymbolSet (if one exists)
+    if (!SelectSymbolSet(aOldSymbolSet) && m_xSymbolSets->get_count() > 0)
+        SelectSymbolSet(m_xSymbolSets->get_text(0));
+    else
+    {
+        // just update display of current symbol set
+        assert(aSymSetName == aSymSetName); //unexpected change in symbol set name
+        aSymbolSet = rSymbolMgr.GetSymbolSet( aSymbolSetName );
+        m_xSymbolSetDisplay->SetSymbolSet( aSymbolSet );
+    }
+
+    if (nSymPos >= aSymbolSet.size())
+        nSymPos = static_cast< sal_uInt16 >(aSymbolSet.size()) - 1;
+    SelectSymbol( nSymPos );
+}
+
+IMPL_LINK_NOARG( SmSymbolDialog, SymbolDblClickHdl2, SmShowSymbolSet&, void )
+{
+    SymbolDblClickHdl();
+}
+
+IMPL_LINK_NOARG( SmSymbolDialog, SymbolDblClickHdl, SmShowSymbol&, void )
+{
+    SymbolDblClickHdl();
+}
+
+void SmSymbolDialog::SymbolDblClickHdl()
+{
+    GetClickHdl(*m_xGetBtn);
+    m_xDialog->response(RET_OK);
+}
+
+IMPL_LINK_NOARG(SmSymbolDialog, GetClickHdl, weld::Button&, void)
+{
+    const SmSym *pSym = GetSymbol();
+    if (pSym)
+    {
+        OUString aText = "%" + pSym->GetName() + " ";
+
+        rViewSh.GetViewFrame()->GetDispatcher()->ExecuteList(
+                SID_INSERTSPECIAL, SfxCallMode::RECORD,
+                { new SfxStringItem(SID_INSERTSPECIAL, aText) });
+    }
+}
+
+SmSymbolDialog::SmSymbolDialog(weld::Window *pParent, OutputDevice *pFntListDevice,
+                               SmSymbolManager &rMgr, SmViewShell &rViewShell)
+    : GenericDialogController(pParent, "modules/smath/ui/catalogdialog.ui", "CatalogDialog")
+    , rViewSh(rViewShell)
+    , rSymbolMgr(rMgr)
+    , pFontListDev(pFntListDevice)
+    , m_xSymbolSets(m_xBuilder->weld_combo_box("symbolset"))
+    , m_xSymbolSetDisplay(new SmShowSymbolSet(m_xBuilder->weld_scrolled_window("scrolledwindow")))
+    , m_xSymbolSetDisplayArea(new weld::CustomWeld(*m_xBuilder, "symbolsetdisplay", *m_xSymbolSetDisplay))
+    , m_xSymbolName(m_xBuilder->weld_label("symbolname"))
+    , m_xSymbolDisplay(new weld::CustomWeld(*m_xBuilder, "preview", m_aSymbolDisplay))
+    , m_xGetBtn(m_xBuilder->weld_button("ok"))
+    , m_xEditBtn(m_xBuilder->weld_button("edit"))
+{
+    m_xSymbolSets->make_sorted();
+
+    aSymbolSetName.clear();
+    aSymbolSet.clear();
+    FillSymbolSets();
+    if (m_xSymbolSets->get_count() > 0)
+        SelectSymbolSet(m_xSymbolSets->get_text(0));
+
+    m_xSymbolSets->connect_changed(LINK(this, SmSymbolDialog, SymbolSetChangeHdl));
+    m_xSymbolSetDisplay->SetSelectHdl(LINK(this, SmSymbolDialog, SymbolChangeHdl));
+    m_xSymbolSetDisplay->SetDblClickHdl(LINK(this, SmSymbolDialog, SymbolDblClickHdl2));
+    m_aSymbolDisplay.SetDblClickHdl(LINK(this, SmSymbolDialog, SymbolDblClickHdl));
+    m_xEditBtn->connect_clicked(LINK(this, SmSymbolDialog, EditClickHdl));
+    m_xGetBtn->connect_clicked(LINK(this, SmSymbolDialog, GetClickHdl));
+}
+
+SmSymbolDialog::~SmSymbolDialog()
+{
+}
+
+bool SmSymbolDialog::SelectSymbolSet(const OUString &rSymbolSetName)
+{
+    bool bRet = false;
+    sal_Int32 nPos = m_xSymbolSets->find_text(rSymbolSetName);
+
+    aSymbolSetName.clear();
+    aSymbolSet.clear();
+    if (nPos != -1)
+    {
+        m_xSymbolSets->set_active(nPos);
+
+        aSymbolSetName  = rSymbolSetName;
+        aSymbolSet      = rSymbolMgr.GetSymbolSet( aSymbolSetName );
+
+        // sort symbols by Unicode position (useful for displaying Greek characters alphabetically)
+        std::sort( aSymbolSet.begin(), aSymbolSet.end(),
+                   [](const SmSym *pSym1, const SmSym *pSym2)
+                   {
+                       return pSym1->GetCharacter() < pSym2->GetCharacter();
+                   } );
+
+        m_xSymbolSetDisplay->SetSymbolSet( aSymbolSet );
+        if (!aSymbolSet.empty())
+            SelectSymbol(0);
+
+        bRet = true;
+    }
+    else
+        m_xSymbolSets->set_active(-1);
+
+    return bRet;
+}
+
+void SmSymbolDialog::SelectSymbol(sal_uInt16 nSymbolNo)
+{
+    const SmSym *pSym = nullptr;
+    if (!aSymbolSetName.isEmpty()  &&  nSymbolNo < static_cast< sal_uInt16 >(aSymbolSet.size()))
+        pSym = aSymbolSet[ nSymbolNo ];
+
+    m_xSymbolSetDisplay->SelectSymbol(nSymbolNo);
+    m_aSymbolDisplay.SetSymbol(pSym);
+    m_xSymbolName->set_label(pSym ? pSym->GetName() : OUString());
+}
+
+const SmSym* SmSymbolDialog::GetSymbol() const
+{
+    sal_uInt16 nSymbolNo = m_xSymbolSetDisplay->GetSelectSymbol();
+    bool bValid = !aSymbolSetName.isEmpty()  &&  nSymbolNo < static_cast< sal_uInt16 >(aSymbolSet.size());
+    return bValid ? aSymbolSet[ nSymbolNo ] : nullptr;
+}
+
+void SmShowChar::Resize()
+{
+    const OUString &rText = GetText();
+    if (rText.isEmpty())
+        return;
+    sal_Int32 nStrIndex = 0;
+    sal_UCS4 cChar = rText.iterateCodePoints(&nStrIndex);
+    SetSymbol(cChar, GetFont()); //force recalculation of size
+}
+
+void SmShowChar::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
+{
+    Color aTextCol = rRenderContext.GetTextColor();
+    Color aFillCol = rRenderContext.GetFillColor();
+
+    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+    const Color aWindowTextColor(rStyleSettings.GetDialogTextColor());
+    const Color aWindowColor(rStyleSettings.GetWindowColor());
+    rRenderContext.SetTextColor(aWindowTextColor);
+    rRenderContext.SetFillColor(aWindowColor);
+
+    Size aSize(GetOutputSizePixel());
+    rRenderContext.DrawRect(tools::Rectangle(Point(0, 0), aSize));
+
+    OUString aText(GetText());
+    if (!aText.isEmpty())
+    {
+        vcl::Font aFont(m_aFont);
+        aFont.SetAlignment(ALIGN_TOP);
+        rRenderContext.SetFont(aFont);
+
+        Size aTextSize(rRenderContext.GetTextWidth(aText), rRenderContext.GetTextHeight());
+
+        rRenderContext.DrawText(Point((aSize.Width()  - aTextSize.Width()) / 2,
+                                      (aSize.Height() - aTextSize.Height()) / 2), aText);
+    }
+
+    rRenderContext.SetTextColor(aTextCol);
+    rRenderContext.SetFillColor(aFillCol);
+}
+
+void SmShowChar::SetSymbol( const SmSym *pSym )
+{
+    if (pSym)
+        SetSymbol( pSym->GetCharacter(), pSym->GetFace() );
+}
+
+
+void SmShowChar::SetSymbol( sal_UCS4 cChar, const vcl::Font &rFont )
+{
+    vcl::Font aFont( rFont );
+    Size aSize(GetOutputSizePixel());
+    aFont.SetFontSize(Size(0, aSize.Height() - aSize.Height() / 3));
+    aFont.SetAlignment(ALIGN_BASELINE);
+    SetFont(aFont);
+
+    OUString aText(&cChar, 1);
+    SetText( aText );
+
+    Invalidate();
+}
+
+void SmSymDefineDialog::FillSymbols(weld::ComboBox& rComboBox, bool bDeleteText)
+{
+    assert((&rComboBox == m_xOldSymbols.get() || &rComboBox == m_xSymbols.get()) && "Sm : wrong ComboBox");
+
+    rComboBox.clear();
+    if (bDeleteText)
+        rComboBox.set_entry_text(OUString());
+
+    weld::ComboBox& rBox = &rComboBox == m_xOldSymbols.get() ? *m_xOldSymbolSets : *m_xSymbolSets;
+    SymbolPtrVec_t aSymSet(m_aSymbolMgrCopy.GetSymbolSet(rBox.get_active_text()));
+    for (const SmSym* i : aSymSet)
+        rComboBox.append_text(i->GetName());
+}
+
+void SmSymDefineDialog::FillSymbolSets(weld::ComboBox& rComboBox, bool bDeleteText)
+{
+    assert((&rComboBox == m_xOldSymbolSets.get() || &rComboBox == m_xSymbolSets.get()) && "Sm : wrong ComboBox");
+
+    rComboBox.clear();
+    if (bDeleteText)
+        rComboBox.set_entry_text(OUString());
+
+    const std::set< OUString >  aSymbolSetNames( m_aSymbolMgrCopy.GetSymbolSetNames() );
+    for (const auto& rSymbolSetName : aSymbolSetNames)
+        rComboBox.append_text(rSymbolSetName);
+}
+
+void SmSymDefineDialog::FillFonts()
+{
+    m_xFonts->clear();
+    m_xFonts->set_active(-1);
+
+    // Include all fonts of FontList into the font list.
+    // If there are duplicates, only include one entry of each font since the style will be
+    // already selected using the FontStyleBox.
+    if (m_xFontList)
+    {
+        sal_uInt16  nCount = m_xFontList->GetFontNameCount();
+        for (sal_uInt16 i = 0; i < nCount; ++i)
+            m_xFonts->append_text(m_xFontList->GetFontName(i).GetFamilyName());
+    }
+}
+
+void SmSymDefineDialog::FillStyles()
+{
+    m_xStyles->clear();
+//    pStyles->SetText(OUString());
+
+    OUString aText(m_xFonts->get_active_text());
+    if (!aText.isEmpty())
+    {
+        // use own StyleNames
+        const SmFontStyles &rStyles = GetFontStyles();
+        for (sal_uInt16 i = 0; i < SmFontStyles::GetCount(); ++i)
+            m_xStyles->append_text(rStyles.GetStyleName(i));
+
+        assert(m_xStyles->get_count() > 0 && "Sm : no styles available");
+        m_xStyles->set_active(0);
+    }
+}
+
+SmSym* SmSymDefineDialog::GetSymbol(const weld::ComboBox& rComboBox)
+{
+    assert((&rComboBox == m_xOldSymbols.get() || &rComboBox == m_xSymbols.get()) && "Sm : wrong combobox");
+    return m_aSymbolMgrCopy.GetSymbolByName(rComboBox.get_active_text());
+}
+
+IMPL_LINK(SmSymDefineDialog, OldSymbolChangeHdl, weld::ComboBox&, rComboBox, void)
+{
+    (void) rComboBox;
+    assert(&rComboBox == m_xOldSymbols.get() && "Sm : wrong argument");
+    SelectSymbol(*m_xOldSymbols, m_xOldSymbols->get_active_text(), false);
+}
+
+IMPL_LINK( SmSymDefineDialog, OldSymbolSetChangeHdl, weld::ComboBox&, rComboBox, void )
+{
+    (void) rComboBox;
+    assert(&rComboBox == m_xOldSymbolSets.get() && "Sm : wrong argument");
+    SelectSymbolSet(*m_xOldSymbolSets, m_xOldSymbolSets->get_active_text(), false);
+}
+
+IMPL_LINK(SmSymDefineDialog, ModifyHdl, weld::ComboBox&, rComboBox, void)
+{
+    // remember cursor position for later restoring of it
+    int nStartPos, nEndPos;
+    rComboBox.get_entry_selection_bounds(nStartPos, nEndPos);
+
+    if (&rComboBox == m_xSymbols.get())
+        SelectSymbol(*m_xSymbols, m_xSymbols->get_active_text(), false);
+    else if (&rComboBox == m_xSymbolSets.get())
+        SelectSymbolSet(*m_xSymbolSets, m_xSymbolSets->get_active_text(), false);
+    else if (&rComboBox == m_xOldSymbols.get())
+        // allow only names from the list
+        SelectSymbol(*m_xOldSymbols, m_xOldSymbols->get_active_text(), true);
+    else if (&rComboBox == m_xOldSymbolSets.get())
+        // allow only names from the list
+        SelectSymbolSet(*m_xOldSymbolSets, m_xOldSymbolSets->get_active_text(), true);
+    else if (&rComboBox == m_xStyles.get())
+        // allow only names from the list (that's the case here anyway)
+        SelectStyle(m_xStyles->get_active_text(), true);
+    else
+        SAL_WARN("starmath", "wrong combobox argument");
+
+    rComboBox.select_entry_region(nStartPos, nEndPos);
+
+    UpdateButtons();
+}
+
+IMPL_LINK(SmSymDefineDialog, FontChangeHdl, weld::ComboBox&, rListBox, void)
+{
+    (void) rListBox;
+    assert(&rListBox == m_xFonts.get() && "Sm : wrong argument");
+
+    SelectFont(m_xFonts->get_active_text());
+}
+
+IMPL_LINK_NOARG(SmSymDefineDialog, SubsetChangeHdl, weld::ComboBox&, void)
+{
+    int nPos = m_xFontsSubsetLB->get_active();
+    if (nPos != -1)
+    {
+        const Subset* pSubset = reinterpret_cast<const Subset*>(m_xFontsSubsetLB->get_active_id().toUInt64());
+        if (pSubset)
+        {
+            m_xCharsetDisplay->SelectCharacter( pSubset->GetRangeMin() );
+        }
+    }
+}
+
+IMPL_LINK( SmSymDefineDialog, StyleChangeHdl, weld::ComboBox&, rComboBox, void )
+{
+    (void) rComboBox;
+    assert(&rComboBox == m_xStyles.get() && "Sm : wrong argument");
+
+    SelectStyle(m_xStyles->get_active_text());
+}
+
+IMPL_LINK_NOARG(SmSymDefineDialog, CharHighlightHdl, SvxShowCharSet*, void)
+{
+    sal_UCS4 cChar = m_xCharsetDisplay->GetSelectCharacter();
+
+    if (m_xSubsetMap)
+    {
+        const Subset* pSubset = m_xSubsetMap->GetSubsetByUnicode(cChar);
+        if (pSubset)
+            m_xFontsSubsetLB->set_active_text(pSubset->GetName());
+        else
+            m_xFontsSubsetLB->set_active(-1);
+    }
+
+    m_aSymbolDisplay.SetSymbol(cChar, m_xCharsetDisplay->GetFont());
+
+    UpdateButtons();
+
+    // display Unicode position as symbol name while iterating over characters
+    const OUString aHex(OUString::number(cChar, 16).toAsciiUpperCase());
+    const OUString aPattern( (aHex.getLength() > 4) ? OUString("Ux000000") : OUString("Ux0000") );
+    OUString aUnicodePos = aPattern.copy( 0, aPattern.getLength() - aHex.getLength() ) +
+        aHex;
+    m_xSymbols->set_entry_text(aUnicodePos);
+    m_xSymbolName->set_label(aUnicodePos);
+}
+
+IMPL_LINK( SmSymDefineDialog, AddClickHdl, weld::Button&, rButton, void )
+{
+    (void) rButton;
+    assert(&rButton == m_xAddBtn.get() && "Sm : wrong argument");
+    assert(rButton.get_sensitive() && "Sm : requirements met ??");
+
+    // add symbol
+    const SmSym aNewSymbol(m_xSymbols->get_active_text(), m_xCharsetDisplay->GetFont(),
+            m_xCharsetDisplay->GetSelectCharacter(), m_xSymbolSets->get_active_text());
+    //OSL_ENSURE( m_aSymbolMgrCopy.GetSymbolByName(aTmpSymbolName) == NULL, "symbol already exists" );
+    m_aSymbolMgrCopy.AddOrReplaceSymbol( aNewSymbol );
+
+    // update display of new symbol
+    m_aSymbolDisplay.SetSymbol( &aNewSymbol );
+    m_xSymbolName->set_label(aNewSymbol.GetName());
+    m_xSymbolSetName->set_label(aNewSymbol.GetSymbolSetName());
+
+    // update list box entries
+    FillSymbolSets(*m_xOldSymbolSets, false);
+    FillSymbolSets(*m_xSymbolSets, false);
+    FillSymbols(*m_xOldSymbols, false);
+    FillSymbols(*m_xSymbols, false);
+
+    UpdateButtons();
+}
+
+IMPL_LINK( SmSymDefineDialog, ChangeClickHdl, weld::Button&, rButton, void )
+{
+    (void) rButton;
+    assert(&rButton == m_xChangeBtn.get() && "Sm : wrong argument");
+    assert(m_xChangeBtn->get_sensitive() && "Sm : requirements met ??");
+
+    // get new Symbol to use
+    //! get font from symbol-disp lay since charset-display does not keep
+    //! the bold attribute.
+    const SmSym aNewSymbol(m_xSymbols->get_active_text(), m_xCharsetDisplay->GetFont(),
+            m_xCharsetDisplay->GetSelectCharacter(), m_xSymbolSets->get_active_text());
+
+    // remove old symbol if the name was changed then add new one
+    const bool bNameChanged = m_xOldSymbols->get_active_text() != m_xSymbols->get_active_text();
+    if (bNameChanged)
+        m_aSymbolMgrCopy.RemoveSymbol(m_xOldSymbols->get_active_text());
+    m_aSymbolMgrCopy.AddOrReplaceSymbol( aNewSymbol, true );
+
+    // clear display for original symbol if necessary
+    if (bNameChanged)
+        SetOrigSymbol(nullptr, OUString());
+
+    // update display of new symbol
+    m_aSymbolDisplay.SetSymbol(&aNewSymbol);
+    m_xSymbolName->set_label(aNewSymbol.GetName());
+    m_xSymbolSetName->set_label(aNewSymbol.GetSymbolSetName());
+
+    // update list box entries
+    FillSymbolSets(*m_xOldSymbolSets, false);
+    FillSymbolSets(*m_xSymbolSets, false);
+    FillSymbols(*m_xOldSymbols, false);
+    FillSymbols(*m_xSymbols, false);
+
+    UpdateButtons();
+}
+
+IMPL_LINK(SmSymDefineDialog, DeleteClickHdl, weld::Button&, rButton, void)
+{
+    (void) rButton;
+    assert(&rButton == m_xDeleteBtn.get() && "Sm : wrong argument");
+    assert(m_xDeleteBtn->get_sensitive() && "Sm : requirements met ??");
+
+    if (m_xOrigSymbol)
+    {
+        m_aSymbolMgrCopy.RemoveSymbol(m_xOrigSymbol->GetName());
+
+        // clear display for original symbol
+        SetOrigSymbol(nullptr, OUString());
+
+        // update list box entries
+        FillSymbolSets(*m_xOldSymbolSets, false);
+        FillSymbolSets(*m_xSymbolSets,    false);
+        FillSymbols(*m_xOldSymbols ,false);
+        FillSymbols(*m_xSymbols    ,false);
+    }
+
+    UpdateButtons();
+}
+
+void SmSymDefineDialog::UpdateButtons()
+{
+    bool  bAdd    = false,
+          bChange = false,
+          bDelete = false;
+    OUString aTmpSymbolName(m_xSymbols->get_active_text()),
+             aTmpSymbolSetName(m_xSymbolSets->get_active_text());
+
+    if (!aTmpSymbolName.isEmpty() && !aTmpSymbolSetName.isEmpty())
+    {
+        // are all settings equal?
+        //! (Font-, Style- and SymbolSet name comparison is not case sensitive)
+        bool bEqual = m_xOrigSymbol
+                    && aTmpSymbolSetName.equalsIgnoreAsciiCase(m_xOldSymbolSetName->get_label())
+                    && aTmpSymbolName == m_xOrigSymbol->GetName()
+                    && m_xFonts->get_active_text().equalsIgnoreAsciiCase(
+                            m_xOrigSymbol->GetFace().GetFamilyName())
+                    && m_xStyles->get_active_text().equalsIgnoreAsciiCase(
+                            GetFontStyles().GetStyleName(m_xOrigSymbol->GetFace()))
+                    && m_xCharsetDisplay->GetSelectCharacter() == m_xOrigSymbol->GetCharacter();
+
+        // only add it if there isn't already a symbol with the same name
+        bAdd    = m_aSymbolMgrCopy.GetSymbolByName(aTmpSymbolName) == nullptr;
+
+        // only delete it if all settings are equal
+        bDelete = bool(m_xOrigSymbol);
+
+        // only change it if the old symbol exists and the new one is different
+        bChange = m_xOrigSymbol && !bEqual;
+    }
+
+    m_xAddBtn->set_sensitive(bAdd);
+    m_xChangeBtn->set_sensitive(bChange);
+    m_xDeleteBtn->set_sensitive(bDelete);
+}
+
+SmSymDefineDialog::SmSymDefineDialog(weld::Window* pParent, OutputDevice *pFntListDevice, SmSymbolManager &rMgr)
+    : GenericDialogController(pParent, "modules/smath/ui/symdefinedialog.ui", "EditSymbols")
+    , m_xVirDev(VclPtr<VirtualDevice>::Create())
+    , m_rSymbolMgr(rMgr)
+    , m_xFontList(new FontList(pFntListDevice))
+    , m_xOldSymbols(m_xBuilder->weld_combo_box("oldSymbols"))
+    , m_xOldSymbolSets(m_xBuilder->weld_combo_box("oldSymbolSets"))
+    , m_xSymbols(m_xBuilder->weld_combo_box("symbols"))
+    , m_xSymbolSets(m_xBuilder->weld_combo_box("symbolSets"))
+    , m_xFonts(m_xBuilder->weld_combo_box("fonts"))
+    , m_xFontsSubsetLB(m_xBuilder->weld_combo_box("fontsSubsetLB"))
+    , m_xStyles(m_xBuilder->weld_combo_box("styles"))
+    , m_xOldSymbolName(m_xBuilder->weld_label("oldSymbolName"))
+    , m_xOldSymbolSetName(m_xBuilder->weld_label("oldSymbolSetName"))
+    , m_xSymbolName(m_xBuilder->weld_label("symbolName"))
+    , m_xSymbolSetName(m_xBuilder->weld_label("symbolSetName"))
+    , m_xAddBtn(m_xBuilder->weld_button("add"))
+    , m_xChangeBtn(m_xBuilder->weld_button("modify"))
+    , m_xDeleteBtn(m_xBuilder->weld_button("delete"))
+    , m_xOldSymbolDisplay(new weld::CustomWeld(*m_xBuilder, "oldSymbolDisplay", m_aOldSymbolDisplay))
+    , m_xSymbolDisplay(new weld::CustomWeld(*m_xBuilder, "symbolDisplay", m_aSymbolDisplay))
+    , m_xCharsetDisplay(new SvxShowCharSet(m_xBuilder->weld_scrolled_window("showscroll"), m_xVirDev))
+    , m_xCharsetDisplayArea(new weld::CustomWeld(*m_xBuilder, "charsetDisplay", *m_xCharsetDisplay))
+{
+    // auto completion is troublesome since that symbols character also gets automatically selected in the
+    // display and if the user previously selected a character to define/redefine that one this is bad
+    m_xOldSymbols->set_entry_completion(false);
+    m_xSymbols->set_entry_completion(false);
+
+    FillFonts();
+    if (m_xFonts->get_count() > 0)
+        SelectFont(m_xFonts->get_text(0));
+
+    SetSymbolSetManager(m_rSymbolMgr);
+
+    m_xOldSymbols->connect_changed(LINK(this, SmSymDefineDialog, OldSymbolChangeHdl));
+    m_xOldSymbolSets->connect_changed(LINK(this, SmSymDefineDialog, OldSymbolSetChangeHdl));
+    m_xSymbolSets->connect_changed(LINK(this, SmSymDefineDialog, ModifyHdl));
+    m_xOldSymbolSets->connect_changed(LINK(this, SmSymDefineDialog, ModifyHdl));
+    m_xSymbols->connect_changed(LINK(this, SmSymDefineDialog, ModifyHdl));
+    m_xOldSymbols->connect_changed(LINK(this, SmSymDefineDialog, ModifyHdl));
+    m_xStyles->connect_changed(LINK(this, SmSymDefineDialog, ModifyHdl));
+    m_xFonts->connect_changed(LINK(this, SmSymDefineDialog, FontChangeHdl));
+    m_xFontsSubsetLB->connect_changed(LINK(this, SmSymDefineDialog, SubsetChangeHdl));
+    m_xStyles->connect_changed(LINK(this, SmSymDefineDialog, StyleChangeHdl));
+    m_xAddBtn->connect_clicked(LINK(this, SmSymDefineDialog, AddClickHdl));
+    m_xChangeBtn->connect_clicked(LINK(this, SmSymDefineDialog, ChangeClickHdl));
+    m_xDeleteBtn->connect_clicked(LINK(this, SmSymDefineDialog, DeleteClickHdl));
+    m_xCharsetDisplay->SetHighlightHdl( LINK( this, SmSymDefineDialog, CharHighlightHdl ) );
+}
+
+SmSymDefineDialog::~SmSymDefineDialog()
+{
+}
+
+short SmSymDefineDialog::run()
+{
+    short nResult = GenericDialogController::run();
+
+    // apply changes if dialog was closed by clicking OK
+    if (m_aSymbolMgrCopy.IsModified() && nResult == RET_OK)
+        m_rSymbolMgr = m_aSymbolMgrCopy;
+
+    return nResult;
+}
+
+void SmSymDefineDialog::SetSymbolSetManager(const SmSymbolManager &rMgr)
+{
+    m_aSymbolMgrCopy = rMgr;
+
+    // Set the modified flag of the copy to false so that
+    // we can check later on if anything has been changed
+    m_aSymbolMgrCopy.SetModified(false);
+
+    FillSymbolSets(*m_xOldSymbolSets);
+    if (m_xOldSymbolSets->get_count() > 0)
+        SelectSymbolSet(m_xOldSymbolSets->get_text(0));
+    FillSymbolSets(*m_xSymbolSets);
+    if (m_xSymbolSets->get_count() > 0)
+        SelectSymbolSet(m_xSymbolSets->get_text(0));
+    FillSymbols(*m_xOldSymbols);
+    if (m_xOldSymbols->get_count() > 0)
+        SelectSymbol(m_xOldSymbols->get_text(0));
+    FillSymbols(*m_xSymbols);
+    if (m_xSymbols->get_count() > 0)
+        SelectSymbol(m_xSymbols->get_text(0));
+
+    UpdateButtons();
+}
+
+bool SmSymDefineDialog::SelectSymbolSet(weld::ComboBox& rComboBox,
+        const OUString &rSymbolSetName, bool bDeleteText)
+{
+    assert((&rComboBox == m_xOldSymbolSets.get() || &rComboBox == m_xSymbolSets.get()) && "Sm : wrong ComboBox");
+
+    // trim SymbolName (no leading and trailing blanks)
+    OUString aNormName = comphelper::string::stripStart(rSymbolSetName, ' ');
+    aNormName = comphelper::string::stripEnd(aNormName, ' ');
+    // and remove possible deviations within the input
+    rComboBox.set_entry_text(aNormName);
+
+    bool   bRet = false;
+    int nPos = rComboBox.find_text(aNormName);
+
+    if (nPos != -1)
+    {
+        rComboBox.set_active(nPos);
+        bRet = true;
+    }
+    else if (bDeleteText)
+        rComboBox.set_entry_text(OUString());
+
+    bool  bIsOld = &rComboBox == m_xOldSymbolSets.get();
+
+    // setting the SymbolSet name at the associated display
+    weld::Label& rFT = bIsOld ? *m_xOldSymbolSetName : *m_xSymbolSetName;
+    rFT.set_label(rComboBox.get_active_text());
+
+    // set the symbol name which belongs to the SymbolSet at the associated combobox
+    weld::ComboBox& rCB = bIsOld ? *m_xOldSymbols : *m_xSymbols;
+    FillSymbols(rCB, false);
+
+    // display a valid respectively no symbol when changing the SymbolSets
+    if (bIsOld)
+    {
+        OUString aTmpOldSymbolName;
+        if (m_xOldSymbols->get_count() > 0)
+            aTmpOldSymbolName = m_xOldSymbols->get_text(0);
+        SelectSymbol(*m_xOldSymbols, aTmpOldSymbolName, true);
+    }
+
+    UpdateButtons();
+
+    return bRet;
+}
+
+void SmSymDefineDialog::SetOrigSymbol(const SmSym *pSymbol,
+                                      const OUString &rSymbolSetName)
+{
+    // clear old symbol
+    m_xOrigSymbol.reset();
+
+    OUString   aSymName,
+                aSymSetName;
+    if (pSymbol)
+    {
+        // set new symbol
+        m_xOrigSymbol.reset(new SmSym(*pSymbol));
+
+        aSymName    = pSymbol->GetName();
+        aSymSetName = rSymbolSetName;
+        m_aOldSymbolDisplay.SetSymbol( pSymbol );
+    }
+    else
+    {   // delete displayed symbols
+        m_aOldSymbolDisplay.SetText(OUString());
+        m_aOldSymbolDisplay.Invalidate();
+    }
+    m_xOldSymbolName->set_label(aSymName);
+    m_xOldSymbolSetName->set_label(aSymSetName);
+}
+
+
+bool SmSymDefineDialog::SelectSymbol(weld::ComboBox& rComboBox,
+        const OUString &rSymbolName, bool bDeleteText)
+{
+    assert((&rComboBox == m_xOldSymbols.get() || &rComboBox == m_xSymbols.get()) && "Sm : wrong ComboBox");
+
+    // trim SymbolName (no blanks)
+    OUString  aNormName = rSymbolName.replaceAll(" ", "");
+    // and remove possible deviations within the input
+    rComboBox.set_entry_text(aNormName);
+
+    bool   bRet = false;
+    int nPos = rComboBox.find_text(aNormName);
+
+    bool  bIsOld = &rComboBox == m_xOldSymbols.get();
+
+    if (nPos != -1)
+    {
+        rComboBox.set_active(nPos);
+
+        if (!bIsOld)
+        {
+            const SmSym *pSymbol = GetSymbol(*m_xSymbols);
+            if (pSymbol)
+            {
+                // choose font and style accordingly
+                const vcl::Font &rFont = pSymbol->GetFace();
+                SelectFont(rFont.GetFamilyName(), false);
+                SelectStyle(GetFontStyles().GetStyleName(rFont), false);
+
+                // Since setting the Font via the Style name of the SymbolFonts doesn't
+                // work really well (e.g. it can be empty even though the font itself is
+                // bold or italic) we're manually setting the Font with respect to the Symbol
+                m_xCharsetDisplay->SetFont(rFont);
+                m_aSymbolDisplay.SetFont(rFont);
+
+                // select associated character
+                SelectChar(pSymbol->GetCharacter());
+
+                // since SelectChar will also set the unicode point as text in the
+                // symbols box, we have to set the symbol name again to get that one displayed
+                m_xSymbols->set_entry_text(pSymbol->GetName());
+            }
+        }
+
+        bRet = true;
+    }
+    else if (bDeleteText)
+        rComboBox.set_entry_text(OUString());
+
+    if (bIsOld)
+    {
+        // if there's a change of the old symbol, show only the available ones, otherwise show none
+        const SmSym *pOldSymbol = nullptr;
+        OUString     aTmpOldSymbolSetName;
+        if (nPos != -1)
+        {
+            pOldSymbol        = m_aSymbolMgrCopy.GetSymbolByName(aNormName);
+            aTmpOldSymbolSetName = m_xOldSymbolSets->get_active_text();
+        }
+        SetOrigSymbol(pOldSymbol, aTmpOldSymbolSetName);
+    }
+    else
+        m_xSymbolName->set_label(rComboBox.get_active_text());
+
+    UpdateButtons();
+
+    return bRet;
+}
+
+
+void SmSymDefineDialog::SetFont(const OUString &rFontName, const OUString &rStyleName)
+{
+    // get Font (FontInfo) matching name and style
+    FontMetric aFontMetric;
+    if (m_xFontList)
+        aFontMetric = m_xFontList->Get(rFontName, WEIGHT_NORMAL, ITALIC_NONE);
+    SetFontStyle(rStyleName, aFontMetric);
+
+    m_xCharsetDisplay->SetFont(aFontMetric);
+    m_aSymbolDisplay.SetFont(aFontMetric);
+
+    // update subset listbox for new font's unicode subsets
+    FontCharMapRef xFontCharMap = m_xCharsetDisplay->GetFontCharMap();
+    m_xSubsetMap.reset(new SubsetMap( xFontCharMap ));
+
+    m_xFontsSubsetLB->clear();
+    bool bFirst = true;
+    for (auto & subset : m_xSubsetMap->GetSubsetMap())
+    {
+        m_xFontsSubsetLB->append(OUString::number(reinterpret_cast<sal_uInt64>(&subset)), subset.GetName());
+        // subset must live at least as long as the selected font !!!
+        if (bFirst)
+            m_xFontsSubsetLB->set_active(0);
+        bFirst = false;
+    }
+    if (bFirst)
+        m_xFontsSubsetLB->set_active(-1);
+    m_xFontsSubsetLB->set_sensitive(!bFirst);
+}
+
+bool SmSymDefineDialog::SelectFont(const OUString &rFontName, bool bApplyFont)
+{
+    bool   bRet = false;
+    int nPos = m_xFonts->find_text(rFontName);
+
+    if (nPos != -1)
+    {
+        m_xFonts->set_active(nPos);
+        if (m_xStyles->get_count() > 0)
+            SelectStyle(m_xStyles->get_text(0));
+        if (bApplyFont)
+        {
+            SetFont(m_xFonts->get_active_text(), m_xStyles->get_active_text());
+            m_aSymbolDisplay.SetSymbol(m_xCharsetDisplay->GetSelectCharacter(), m_xCharsetDisplay->GetFont());
+        }
+        bRet = true;
+    }
+    else
+        m_xFonts->set_active(-1);
+    FillStyles();
+
+    UpdateButtons();
+
+    return bRet;
+}
+
+
+bool SmSymDefineDialog::SelectStyle(const OUString &rStyleName, bool bApplyFont)
+{
+    bool   bRet = false;
+    int nPos = m_xStyles->find_text(rStyleName);
+
+    // if the style is not available take the first available one (if existent)
+    if (nPos == -1 && m_xStyles->get_count() > 0)
+        nPos = 0;
+
+    if (nPos != -1)
+    {
+        m_xStyles->set_active(nPos);
+        if (bApplyFont)
+        {
+            SetFont(m_xFonts->get_active_text(), m_xStyles->get_active_text());
+            m_aSymbolDisplay.SetSymbol(m_xCharsetDisplay->GetSelectCharacter(), m_xCharsetDisplay->GetFont());
+        }
+        bRet = true;
+    }
+    else
+        m_xStyles->set_entry_text(OUString());
+
+    UpdateButtons();
+
+    return bRet;
+}
+
+void SmSymDefineDialog::SelectChar(sal_Unicode cChar)
+{
+    m_xCharsetDisplay->SelectCharacter( cChar );
+    m_aSymbolDisplay.SetSymbol(cChar, m_xCharsetDisplay->GetFont());
+
+    UpdateButtons();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/document.cxx b/starmath/source/document.cxx
new file mode 100644
index 000000000..8f9925c3c
--- /dev/null
+++ b/starmath/source/document.cxx
@@ -0,0 +1,1291 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/uno/Any.h>
+
+#include <comphelper/fileformat.h>
+#include <comphelper/accessibletexthelper.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <unotools/eventcfg.hxx>
+#include <sfx2/event.hxx>
+#include <sfx2/app.hxx>
+#include <sfx2/bindings.hxx>
+#include <sfx2/docfile.hxx>
+#include <sfx2/docfilt.hxx>
+#include <sfx2/msg.hxx>
+#include <sfx2/objface.hxx>
+#include <sfx2/printer.hxx>
+#include <sfx2/request.hxx>
+#include <sfx2/viewfrm.hxx>
+#include <comphelper/classids.hxx>
+#include <sot/formats.hxx>
+#include <sot/storage.hxx>
+#include <svl/eitem.hxx>
+#include <svl/intitem.hxx>
+#include <svl/itempool.hxx>
+#include <svl/slstitm.hxx>
+#include <svl/hint.hxx>
+#include <svl/stritem.hxx>
+#include <svl/undo.hxx>
+#include <svl/whiter.hxx>
+#include <editeng/editeng.hxx>
+#include <editeng/editstat.hxx>
+#include <editeng/eeitem.hxx>
+#include <editeng/fhgtitem.hxx>
+#include <editeng/fontitem.hxx>
+#include <vcl/mapmod.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/virdev.hxx>
+#include <tools/mapunit.hxx>
+#include <vcl/settings.hxx>
+
+#include <document.hxx>
+#include <action.hxx>
+#include <dialog.hxx>
+#include <format.hxx>
+#include <starmath.hrc>
+#include <strings.hrc>
+#include <smmod.hxx>
+#include <symbol.hxx>
+#include <unomodel.hxx>
+#include <utility.hxx>
+#include <view.hxx>
+#include "mathtype.hxx"
+#include "ooxmlexport.hxx"
+#include "ooxmlimport.hxx"
+#include "rtfexport.hxx"
+#include "mathmlimport.hxx"
+#include "mathmlexport.hxx"
+#include <svx/svxids.hrc>
+#include <cursor.hxx>
+#include <tools/diagnose_ex.h>
+#include <visitors.hxx>
+#include "accessibility.hxx"
+#include "cfgitem.hxx"
+#include <memory>
+#include <utility>
+#include <oox/mathml/export.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star::uno;
+
+#define ShellClass_SmDocShell
+#include <smslots.hxx>
+
+
+SFX_IMPL_SUPERCLASS_INTERFACE(SmDocShell, SfxObjectShell)
+
+void SmDocShell::InitInterface_Impl()
+{
+    GetStaticInterface()->RegisterPopupMenu("view");
+}
+
+SFX_IMPL_OBJECTFACTORY(SmDocShell, SvGlobalName(SO3_SM_CLASSID), "smath" )
+
+void SmDocShell::Notify(SfxBroadcaster&, const SfxHint& rHint)
+{
+    if (rHint.GetId() == SfxHintId::MathFormatChanged)
+    {
+        SetFormulaArranged(false);
+
+        mnModifyCount++;     //! see comment for SID_GAPHIC_SM in SmDocShell::GetState
+
+        Repaint();
+    }
+}
+
+void SmDocShell::LoadSymbols()
+{
+    SmModule *pp = SM_MOD();
+    pp->GetSymbolManager().Load();
+}
+
+
+OUString SmDocShell::GetComment() const
+{
+    uno::Reference<document::XDocumentPropertiesSupplier> xDPS(
+        GetModel(), uno::UNO_QUERY_THROW);
+    uno::Reference<document::XDocumentProperties> xDocProps(
+        xDPS->getDocumentProperties());
+    return xDocProps->getDescription();
+}
+
+
+void SmDocShell::SetText(const OUString& rBuffer)
+{
+    if (rBuffer == maText)
+        return;
+
+    bool bIsEnabled = IsEnableSetModified();
+    if( bIsEnabled )
+        EnableSetModified( false );
+
+    maText = rBuffer;
+    SetFormulaArranged( false );
+
+    Parse();
+
+    SmViewShell *pViewSh = SmGetActiveView();
+    if( pViewSh )
+    {
+        pViewSh->GetViewFrame()->GetBindings().Invalidate(SID_TEXT);
+        if ( SfxObjectCreateMode::EMBEDDED == GetCreateMode() )
+        {
+            // have SwOleClient::FormatChanged() to align the modified formula properly
+            // even if the visible area does not change (e.g. when formula text changes from
+            // "{a over b + c} over d" to "d over {a over b + c}"
+            SfxGetpApp()->NotifyEvent(SfxEventHint( SfxEventHintId::VisAreaChanged, GlobalEventConfig::GetEventName(GlobalEventId::VISAREACHANGED), this));
+
+            Repaint();
+        }
+        else
+            pViewSh->GetGraphicWindow().Invalidate();
+    }
+
+    if ( bIsEnabled )
+        EnableSetModified( bIsEnabled );
+    SetModified();
+
+    // launch accessible event if necessary
+    SmGraphicAccessible *pAcc = pViewSh ? pViewSh->GetGraphicWindow().GetAccessible_Impl() : nullptr;
+    if (pAcc)
+    {
+        Any aOldValue, aNewValue;
+        if ( comphelper::OCommonAccessibleText::implInitTextChangedEvent( maText, rBuffer, aOldValue, aNewValue ) )
+        {
+            pAcc->LaunchEvent( AccessibleEventId::TEXT_CHANGED,
+                    aOldValue, aNewValue );
+        }
+    }
+
+    if ( GetCreateMode() == SfxObjectCreateMode::EMBEDDED )
+        OnDocumentPrinterChanged(nullptr);
+}
+
+void SmDocShell::SetFormat(SmFormat const & rFormat)
+{
+    maFormat = rFormat;
+    SetFormulaArranged( false );
+    SetModified();
+
+    mnModifyCount++;     //! see comment for SID_GAPHIC_SM in SmDocShell::GetState
+
+    // don't use SmGetActiveView since the view shell might not be active (0 pointer)
+    // if for example the Basic Macro dialog currently has the focus. Thus:
+    SfxViewFrame* pFrm = SfxViewFrame::GetFirst( this );
+    while (pFrm)
+    {
+        pFrm->GetBindings().Invalidate(SID_GAPHIC_SM);
+        pFrm = SfxViewFrame::GetNext( *pFrm, this );
+    }
+}
+
+OUString const & SmDocShell::GetAccessibleText()
+{
+    ArrangeFormula();
+    if (maAccText.isEmpty())
+    {
+        OSL_ENSURE( mpTree, "Tree missing" );
+        if (mpTree)
+        {
+            OUStringBuffer aBuf;
+            mpTree->GetAccessibleText(aBuf);
+            maAccText = aBuf.makeStringAndClear();
+        }
+    }
+    return maAccText;
+}
+
+void SmDocShell::Parse()
+{
+    mpTree.reset();
+    ReplaceBadChars();
+    mpTree = maParser.Parse(maText);
+    mnModifyCount++;     //! see comment for SID_GAPHIC_SM in SmDocShell::GetState
+    SetFormulaArranged( false );
+    InvalidateCursor();
+    maUsedSymbols = maParser.GetUsedSymbols();
+}
+
+
+void SmDocShell::ArrangeFormula()
+{
+    if (mbFormulaArranged)
+        return;
+
+    // Only for the duration of the existence of this object the correct settings
+    // at the printer are guaranteed!
+    SmPrinterAccess  aPrtAcc(*this);
+    OutputDevice* pOutDev = aPrtAcc.GetRefDev();
+
+    SAL_WARN_IF( !pOutDev, "starmath", "!! SmDocShell::ArrangeFormula: reference device missing !!");
+
+    // if necessary get another OutputDevice for which we format
+    if (!pOutDev)
+    {
+        SmViewShell *pView = SmGetActiveView();
+        if (pView)
+            pOutDev = &pView->GetGraphicWindow();
+        else
+        {
+            pOutDev = &SM_MOD()->GetDefaultVirtualDev();
+            pOutDev->SetMapMode( MapMode(MapUnit::Map100thMM) );
+        }
+    }
+    OSL_ENSURE(pOutDev->GetMapMode().GetMapUnit() == MapUnit::Map100thMM,
+               "Sm : wrong MapMode");
+
+    const SmFormat &rFormat = GetFormat();
+    mpTree->Prepare(rFormat, *this, 0);
+
+    // format/draw formulas always from left to right,
+    // and numbers should not be converted
+    ComplexTextLayoutFlags nLayoutMode = pOutDev->GetLayoutMode();
+    pOutDev->SetLayoutMode( ComplexTextLayoutFlags::Default );
+    LanguageType nDigitLang = pOutDev->GetDigitLanguage();
+    pOutDev->SetDigitLanguage( LANGUAGE_ENGLISH );
+
+    mpTree->Arrange(*pOutDev, rFormat);
+
+    pOutDev->SetLayoutMode( nLayoutMode );
+    pOutDev->SetDigitLanguage( nDigitLang );
+
+    SetFormulaArranged(true);
+
+    // invalidate accessible text
+    maAccText.clear();
+}
+
+void SmDocShell::UpdateEditEngineDefaultFonts(const Color& aTextColor)
+{
+    assert(mpEditEngineItemPool);
+    if (!mpEditEngineItemPool)
+        return;
+
+    // set fonts to be used
+    struct FontDta {
+        LanguageType    nFallbackLang;
+        LanguageType    nLang;
+        DefaultFontType nFontType;
+        sal_uInt16      nFontInfoId;
+        } aTable[3] =
+    {
+        // info to get western font to be used
+        {   LANGUAGE_ENGLISH_US,    LANGUAGE_NONE,
+            DefaultFontType::FIXED,      EE_CHAR_FONTINFO },
+        // info to get CJK font to be used
+        {   LANGUAGE_JAPANESE,      LANGUAGE_NONE,
+            DefaultFontType::CJK_TEXT,   EE_CHAR_FONTINFO_CJK },
+        // info to get CTL font to be used
+        {   LANGUAGE_ARABIC_SAUDI_ARABIA,  LANGUAGE_NONE,
+            DefaultFontType::CTL_TEXT,   EE_CHAR_FONTINFO_CTL }
+    };
+
+    aTable[0].nLang = maLinguOptions.nDefaultLanguage;
+    aTable[1].nLang = maLinguOptions.nDefaultLanguage_CJK;
+    aTable[2].nLang = maLinguOptions.nDefaultLanguage_CTL;
+
+    for (const FontDta & rFntDta : aTable)
+    {
+        LanguageType nLang = (LANGUAGE_NONE == rFntDta.nLang) ?
+                rFntDta.nFallbackLang : rFntDta.nLang;
+        vcl::Font aFont = OutputDevice::GetDefaultFont(
+                    rFntDta.nFontType, nLang, GetDefaultFontFlags::OnlyOne );
+        aFont.SetColor(aTextColor);
+        mpEditEngineItemPool->SetPoolDefaultItem(
+                SvxFontItem( aFont.GetFamilyType(), aFont.GetFamilyName(),
+                    aFont.GetStyleName(), aFont.GetPitch(), aFont.GetCharSet(),
+                    rFntDta.nFontInfoId ) );
+    }
+
+    // set font heights
+    SvxFontHeightItem aFontHeigt(
+                    Application::GetDefaultDevice()->LogicToPixel(
+                    Size( 0, 11 ), MapMode( MapUnit::MapPoint ) ).Height(), 100,
+                    EE_CHAR_FONTHEIGHT );
+    mpEditEngineItemPool->SetPoolDefaultItem( aFontHeigt );
+    aFontHeigt.SetWhich( EE_CHAR_FONTHEIGHT_CJK );
+    mpEditEngineItemPool->SetPoolDefaultItem( aFontHeigt );
+    aFontHeigt.SetWhich( EE_CHAR_FONTHEIGHT_CTL );
+    mpEditEngineItemPool->SetPoolDefaultItem( aFontHeigt );
+}
+
+EditEngine& SmDocShell::GetEditEngine()
+{
+    if (!mpEditEngine)
+    {
+        //!
+        //! see also SmEditWindow::DataChanged !
+        //!
+
+        mpEditEngineItemPool = EditEngine::CreatePool();
+
+        const StyleSettings& rStyleSettings = Application::GetDefaultDevice()->GetSettings().GetStyleSettings();
+        UpdateEditEngineDefaultFonts(rStyleSettings.GetFieldTextColor());
+
+        mpEditEngine.reset( new EditEngine( mpEditEngineItemPool ) );
+
+        mpEditEngine->SetAddExtLeading(true);
+
+        mpEditEngine->EnableUndo( true );
+        mpEditEngine->SetDefTab( sal_uInt16(
+            Application::GetDefaultDevice()->GetTextWidth("XXXX")) );
+
+        mpEditEngine->SetBackgroundColor(rStyleSettings.GetFieldColor());
+
+        mpEditEngine->SetControlWord(
+                (mpEditEngine->GetControlWord() | EEControlBits::AUTOINDENTING) &
+                EEControlBits(~EEControlBits::UNDOATTRIBS) &
+                EEControlBits(~EEControlBits::PASTESPECIAL) );
+
+        mpEditEngine->SetWordDelimiters(" .=+-*/(){}[];\"");
+        mpEditEngine->SetRefMapMode(MapMode(MapUnit::MapPixel));
+
+        mpEditEngine->SetPaperSize( Size( 800, 0 ) );
+
+        mpEditEngine->EraseVirtualDevice();
+
+        // set initial text if the document already has some...
+        // (may be the case when reloading a doc)
+        OUString aTxt( GetText() );
+        if (!aTxt.isEmpty())
+            mpEditEngine->SetText( aTxt );
+
+        mpEditEngine->ClearModifyFlag();
+
+    }
+    return *mpEditEngine;
+}
+
+
+void SmDocShell::DrawFormula(OutputDevice &rDev, Point &rPosition, bool bDrawSelection)
+{
+    if (!mpTree)
+        Parse();
+    OSL_ENSURE(mpTree, "Sm : NULL pointer");
+
+    ArrangeFormula();
+
+    // Problem: What happens to WYSIWYG? While we're active inplace, we don't have a reference
+    // device and aren't aligned to that either. So now there can be a difference between the
+    // VisArea (i.e. the size within the client) and the current size.
+    // Idea: The difference could be adapted with SmNod::SetSize (no long-term solution)
+
+    rPosition.AdjustX(maFormat.GetDistance( DIS_LEFTSPACE ) );
+    rPosition.AdjustY(maFormat.GetDistance( DIS_TOPSPACE  ) );
+
+    //! in case of high contrast-mode (accessibility option!)
+    //! the draw mode needs to be set to default, because when embedding
+    //! Math for example in Calc in "a over b" the fraction bar may not
+    //! be visible else. More generally: the FillColor may have been changed.
+    DrawModeFlags nOldDrawMode = DrawModeFlags::Default;
+    bool bRestoreDrawMode = false;
+    if (OUTDEV_WINDOW == rDev.GetOutDevType() &&
+        static_cast<vcl::Window &>(rDev).GetSettings().GetStyleSettings().GetHighContrastMode())
+    {
+        nOldDrawMode = rDev.GetDrawMode();
+        rDev.SetDrawMode( DrawModeFlags::Default );
+        bRestoreDrawMode = true;
+    }
+
+    // format/draw formulas always from left to right
+    // and numbers should not be converted
+    ComplexTextLayoutFlags nLayoutMode = rDev.GetLayoutMode();
+    rDev.SetLayoutMode( ComplexTextLayoutFlags::Default );
+    LanguageType nDigitLang = rDev.GetDigitLanguage();
+    rDev.SetDigitLanguage( LANGUAGE_ENGLISH );
+
+    //Set selection if any
+    if(mpCursor && bDrawSelection){
+        mpCursor->AnnotateSelection();
+        SmSelectionDrawingVisitor(rDev, mpTree.get(), rPosition);
+    }
+
+    //Drawing using visitor
+    SmDrawingVisitor(rDev, rPosition, mpTree.get());
+
+
+    rDev.SetLayoutMode( nLayoutMode );
+    rDev.SetDigitLanguage( nDigitLang );
+
+    if (bRestoreDrawMode)
+        rDev.SetDrawMode( nOldDrawMode );
+}
+
+Size SmDocShell::GetSize()
+{
+    Size aRet;
+
+    if (!mpTree)
+        Parse();
+
+    if (mpTree)
+    {
+        ArrangeFormula();
+        aRet = mpTree->GetSize();
+
+        if ( !aRet.Width() )
+            aRet.setWidth( 2000 );
+        else
+            aRet.AdjustWidth(maFormat.GetDistance( DIS_LEFTSPACE ) +
+                             maFormat.GetDistance( DIS_RIGHTSPACE ) );
+        if ( !aRet.Height() )
+            aRet.setHeight( 1000 );
+        else
+            aRet.AdjustHeight(maFormat.GetDistance( DIS_TOPSPACE ) +
+                             maFormat.GetDistance( DIS_BOTTOMSPACE ) );
+    }
+
+    return aRet;
+}
+
+void SmDocShell::InvalidateCursor(){
+    mpCursor.reset();
+}
+
+SmCursor& SmDocShell::GetCursor(){
+    if(!mpCursor)
+        mpCursor.reset(new SmCursor(mpTree.get(), this));
+    return *mpCursor;
+}
+
+bool SmDocShell::HasCursor() const { return mpCursor != nullptr; }
+
+SmPrinterAccess::SmPrinterAccess( SmDocShell &rDocShell )
+{
+    pPrinter = rDocShell.GetPrt();
+    if ( pPrinter )
+    {
+        pPrinter->Push( PushFlags::MAPMODE );
+        if ( SfxObjectCreateMode::EMBEDDED == rDocShell.GetCreateMode() )
+        {
+            // if it is an embedded object (without its own printer)
+            // we change the MapMode temporarily.
+            //!If it is a document with its own printer the MapMode should
+            //!be set correct (once) elsewhere(!), in order to avoid numerous
+            //!superfluous pushing and popping of the MapMode when using
+            //!this class.
+
+            const MapUnit eOld = pPrinter->GetMapMode().GetMapUnit();
+            if ( MapUnit::Map100thMM != eOld )
+            {
+                MapMode aMap( pPrinter->GetMapMode() );
+                aMap.SetMapUnit( MapUnit::Map100thMM );
+                Point aTmp( aMap.GetOrigin() );
+                aTmp.setX( OutputDevice::LogicToLogic( aTmp.X(), eOld, MapUnit::Map100thMM ) );
+                aTmp.setY( OutputDevice::LogicToLogic( aTmp.Y(), eOld, MapUnit::Map100thMM ) );
+                aMap.SetOrigin( aTmp );
+                pPrinter->SetMapMode( aMap );
+            }
+        }
+    }
+    pRefDev = rDocShell.GetRefDev();
+    if ( !pRefDev || pPrinter.get() == pRefDev.get() )
+        return;
+
+    pRefDev->Push( PushFlags::MAPMODE );
+    if ( SfxObjectCreateMode::EMBEDDED != rDocShell.GetCreateMode() )
+        return;
+
+    // if it is an embedded object (without its own printer)
+    // we change the MapMode temporarily.
+    //!If it is a document with its own printer the MapMode should
+    //!be set correct (once) elsewhere(!), in order to avoid numerous
+    //!superfluous pushing and popping of the MapMode when using
+    //!this class.
+
+    const MapUnit eOld = pRefDev->GetMapMode().GetMapUnit();
+    if ( MapUnit::Map100thMM != eOld )
+    {
+        MapMode aMap( pRefDev->GetMapMode() );
+        aMap.SetMapUnit( MapUnit::Map100thMM );
+        Point aTmp( aMap.GetOrigin() );
+        aTmp.setX( OutputDevice::LogicToLogic( aTmp.X(), eOld, MapUnit::Map100thMM ) );
+        aTmp.setY( OutputDevice::LogicToLogic( aTmp.Y(), eOld, MapUnit::Map100thMM ) );
+        aMap.SetOrigin( aTmp );
+        pRefDev->SetMapMode( aMap );
+    }
+}
+
+SmPrinterAccess::~SmPrinterAccess()
+{
+    if ( pPrinter )
+        pPrinter->Pop();
+    if ( pRefDev && pRefDev != pPrinter )
+        pRefDev->Pop();
+}
+
+Printer* SmDocShell::GetPrt()
+{
+    if (SfxObjectCreateMode::EMBEDDED == GetCreateMode())
+    {
+        // Normally the server provides the printer. But if it doesn't provide one (e.g. because
+        // there is no connection) it still can be the case that we know the printer because it
+        // has been passed on by the server in OnDocumentPrinterChanged and being kept temporarily.
+        Printer* pPrt = GetDocumentPrinter();
+        if (!pPrt && mpTmpPrinter)
+            pPrt = mpTmpPrinter;
+        return pPrt;
+    }
+    else if (!mpPrinter)
+    {
+        auto pOptions = std::make_unique<SfxItemSet>(
+            GetPool(),
+            svl::Items<
+                SID_PRINTTITLE, SID_PRINTZOOM,
+                SID_NO_RIGHT_SPACES, SID_SAVE_ONLY_USED_SYMBOLS,
+                SID_AUTO_CLOSE_BRACKETS, SID_AUTO_CLOSE_BRACKETS>{});
+        SmModule *pp = SM_MOD();
+        pp->GetConfig()->ConfigToItemSet(*pOptions);
+        mpPrinter = VclPtr<SfxPrinter>::Create(std::move(pOptions));
+        mpPrinter->SetMapMode(MapMode(MapUnit::Map100thMM));
+    }
+    return mpPrinter;
+}
+
+OutputDevice* SmDocShell::GetRefDev()
+{
+    if (SfxObjectCreateMode::EMBEDDED == GetCreateMode())
+    {
+        OutputDevice* pOutDev = GetDocumentRefDev();
+        if (pOutDev)
+            return pOutDev;
+    }
+
+    return GetPrt();
+}
+
+void SmDocShell::SetPrinter( SfxPrinter *pNew )
+{
+    mpPrinter.disposeAndClear();
+    mpPrinter = pNew;    //Transfer ownership
+    mpPrinter->SetMapMode( MapMode(MapUnit::Map100thMM) );
+    SetFormulaArranged(false);
+    Repaint();
+}
+
+void SmDocShell::OnDocumentPrinterChanged( Printer *pPrt )
+{
+    mpTmpPrinter = pPrt;
+    SetFormulaArranged(false);
+    Size aOldSize = GetVisArea().GetSize();
+    Repaint();
+    if( aOldSize != GetVisArea().GetSize() && !maText.isEmpty() )
+        SetModified();
+    mpTmpPrinter = nullptr;
+}
+
+void SmDocShell::Repaint()
+{
+    bool bIsEnabled = IsEnableSetModified();
+    if (bIsEnabled)
+        EnableSetModified( false );
+
+    SetFormulaArranged(false);
+
+    Size aVisSize = GetSize();
+    SetVisAreaSize(aVisSize);
+    SmViewShell* pViewSh = SmGetActiveView();
+    if (pViewSh)
+        pViewSh->GetGraphicWindow().Invalidate();
+
+    if (bIsEnabled)
+        EnableSetModified(bIsEnabled);
+}
+
+SmDocShell::SmDocShell( SfxModelFlags i_nSfxCreationFlags )
+    : SfxObjectShell(i_nSfxCreationFlags)
+    , mpEditEngineItemPool(nullptr)
+    , mpPrinter(nullptr)
+    , mpTmpPrinter(nullptr)
+    , mnModifyCount(0)
+    , mbFormulaArranged(false)
+{
+    SvtLinguConfig().GetOptions(maLinguOptions);
+
+    SetPool(&SfxGetpApp()->GetPool());
+
+    SmModule *pp = SM_MOD();
+    maFormat = pp->GetConfig()->GetStandardFormat();
+
+    StartListening(maFormat);
+    StartListening(*pp->GetConfig());
+
+    SetBaseModel(new SmModel(this));
+}
+
+SmDocShell::~SmDocShell()
+{
+    SmModule *pp = SM_MOD();
+
+    EndListening(maFormat);
+    EndListening(*pp->GetConfig());
+
+    mpCursor.reset();
+    mpEditEngine.reset();
+    SfxItemPool::Free(mpEditEngineItemPool);
+    mpPrinter.disposeAndClear();
+}
+
+bool SmDocShell::ConvertFrom(SfxMedium &rMedium)
+{
+    bool     bSuccess = false;
+    const OUString& rFltName = rMedium.GetFilter()->GetFilterName();
+
+    OSL_ENSURE( rFltName != STAROFFICE_XML, "Wrong filter!");
+
+    if ( rFltName == MATHML_XML )
+    {
+        if (mpTree)
+        {
+            mpTree.reset();
+            InvalidateCursor();
+        }
+        Reference<css::frame::XModel> xModel(GetModel());
+        SmXMLImportWrapper aEquation(xModel);
+        bSuccess = ( ERRCODE_NONE == aEquation.Import(rMedium) );
+    }
+    else
+    {
+        SvStream *pStream = rMedium.GetInStream();
+        if ( pStream )
+        {
+            if ( SotStorage::IsStorageFile( pStream ) )
+            {
+                tools::SvRef<SotStorage> aStorage = new SotStorage( pStream, false );
+                if ( aStorage->IsStream("Equation Native") )
+                {
+                    // is this a MathType Storage?
+                    OUStringBuffer aBuffer;
+                    MathType aEquation(aBuffer);
+                    bSuccess = aEquation.Parse( aStorage.get() );
+                    if ( bSuccess )
+                    {
+                        maText = aBuffer.makeStringAndClear();
+                        Parse();
+                    }
+                }
+            }
+        }
+    }
+
+    if ( GetCreateMode() == SfxObjectCreateMode::EMBEDDED )
+    {
+        SetFormulaArranged( false );
+        Repaint();
+    }
+
+    FinishedLoading();
+    return bSuccess;
+}
+
+
+bool SmDocShell::InitNew( const uno::Reference < embed::XStorage >& xStorage )
+{
+    bool bRet = false;
+    if ( SfxObjectShell::InitNew( xStorage ) )
+    {
+        bRet = true;
+        SetVisArea(tools::Rectangle(Point(0, 0), Size(2000, 1000)));
+    }
+    return bRet;
+}
+
+
+bool SmDocShell::Load( SfxMedium& rMedium )
+{
+    bool bRet = false;
+    if( SfxObjectShell::Load( rMedium ))
+    {
+        uno::Reference < embed::XStorage > xStorage = GetMedium()->GetStorage();
+        if (xStorage->hasByName("content.xml") && xStorage->isStreamElement("content.xml"))
+        {
+            // is this a fabulous math package ?
+            Reference<css::frame::XModel> xModel(GetModel());
+            SmXMLImportWrapper aEquation(xModel);
+            auto nError = aEquation.Import(rMedium);
+            bRet = ERRCODE_NONE == nError;
+            SetError(nError);
+        }
+    }
+
+    if ( GetCreateMode() == SfxObjectCreateMode::EMBEDDED )
+    {
+        SetFormulaArranged( false );
+        Repaint();
+    }
+
+    FinishedLoading();
+    return bRet;
+}
+
+
+bool SmDocShell::Save()
+{
+    //! apply latest changes if necessary
+    UpdateText();
+
+    if ( SfxObjectShell::Save() )
+    {
+        if (!mpTree)
+            Parse();
+        if( mpTree )
+            ArrangeFormula();
+
+        Reference<css::frame::XModel> xModel(GetModel());
+        SmXMLExportWrapper aEquation(xModel);
+        aEquation.SetFlat(false);
+        return aEquation.Export(*GetMedium());
+    }
+
+    return false;
+}
+
+/*
+ * replace bad characters that can not be saved. (#i74144)
+ * */
+void SmDocShell::ReplaceBadChars()
+{
+    bool bReplace = false;
+
+    if (!mpEditEngine)
+        return;
+
+    OUStringBuffer aBuf( mpEditEngine->GetText() );
+
+    for (sal_Int32 i = 0;  i < aBuf.getLength();  ++i)
+    {
+        if (aBuf[i] < ' ' && aBuf[i] != '\r' && aBuf[i] != '\n' && aBuf[i] != '\t')
+        {
+            aBuf[i] = ' ';
+            bReplace = true;
+        }
+    }
+
+    if (bReplace)
+        maText = aBuf.makeStringAndClear();
+}
+
+
+void SmDocShell::UpdateText()
+{
+    if (mpEditEngine && mpEditEngine->IsModified())
+    {
+        OUString aEngTxt( mpEditEngine->GetText() );
+        if (GetText() != aEngTxt)
+            SetText( aEngTxt );
+    }
+}
+
+
+bool SmDocShell::SaveAs( SfxMedium& rMedium )
+{
+    bool bRet = false;
+
+    //! apply latest changes if necessary
+    UpdateText();
+
+    if ( SfxObjectShell::SaveAs( rMedium ) )
+    {
+        if (!mpTree)
+            Parse();
+        if( mpTree )
+            ArrangeFormula();
+
+        Reference<css::frame::XModel> xModel(GetModel());
+        SmXMLExportWrapper aEquation(xModel);
+        aEquation.SetFlat(false);
+        bRet = aEquation.Export(rMedium);
+    }
+    return bRet;
+}
+
+bool SmDocShell::ConvertTo( SfxMedium &rMedium )
+{
+    bool bRet = false;
+    std::shared_ptr<const SfxFilter> pFlt = rMedium.GetFilter();
+    if( pFlt )
+    {
+        if( !mpTree )
+            Parse();
+        if( mpTree )
+            ArrangeFormula();
+
+        const OUString& rFltName = pFlt->GetFilterName();
+        if(rFltName == STAROFFICE_XML)
+        {
+            Reference<css::frame::XModel> xModel(GetModel());
+            SmXMLExportWrapper aEquation(xModel);
+            aEquation.SetFlat(false);
+            bRet = aEquation.Export(rMedium);
+        }
+        else if(rFltName == MATHML_XML)
+        {
+            Reference<css::frame::XModel> xModel(GetModel());
+            SmXMLExportWrapper aEquation(xModel);
+            aEquation.SetFlat(true);
+            bRet = aEquation.Export(rMedium);
+        }
+        else if (pFlt->GetFilterName() == "MathType 3.x")
+            bRet = WriteAsMathType3( rMedium );
+    }
+    return bRet;
+}
+
+void SmDocShell::writeFormulaOoxml(
+        ::sax_fastparser::FSHelperPtr const& pSerializer,
+        oox::core::OoxmlVersion const version,
+        oox::drawingml::DocumentType const documentType,
+        const sal_Int8 nAlign)
+{
+    if( !mpTree )
+        Parse();
+    if( mpTree )
+        ArrangeFormula();
+    SmOoxmlExport aEquation(mpTree.get(), version, documentType);
+    if(documentType == oox::drawingml::DOCUMENT_DOCX)
+        aEquation.ConvertFromStarMath( pSerializer, nAlign);
+    else
+        aEquation.ConvertFromStarMath(pSerializer, oox::FormulaExportBase::eFormulaAlign::INLINE);
+}
+
+void SmDocShell::writeFormulaRtf(OStringBuffer& rBuffer, rtl_TextEncoding nEncoding)
+{
+    if (!mpTree)
+        Parse();
+    if (mpTree)
+        ArrangeFormula();
+    SmRtfExport aEquation(mpTree.get());
+    aEquation.ConvertFromStarMath(rBuffer, nEncoding);
+}
+
+void SmDocShell::readFormulaOoxml( oox::formulaimport::XmlStream& stream )
+{
+    SmOoxmlImport aEquation( stream );
+    SetText( aEquation.ConvertToStarMath());
+}
+
+void SmDocShell::Execute(SfxRequest& rReq)
+{
+    switch (rReq.GetSlot())
+    {
+        case SID_TEXTMODE:
+        {
+            SmFormat aOldFormat  = GetFormat();
+            SmFormat aNewFormat( aOldFormat );
+            aNewFormat.SetTextmode(!aOldFormat.IsTextmode());
+
+            SfxUndoManager *pTmpUndoMgr = GetUndoManager();
+            if (pTmpUndoMgr)
+                pTmpUndoMgr->AddUndoAction(
+                    std::make_unique<SmFormatAction>(this, aOldFormat, aNewFormat));
+
+            SetFormat( aNewFormat );
+            Repaint();
+        }
+        break;
+
+        case SID_AUTO_REDRAW :
+        {
+            SmModule *pp = SM_MOD();
+            bool bRedraw = pp->GetConfig()->IsAutoRedraw();
+            pp->GetConfig()->SetAutoRedraw(!bRedraw);
+        }
+        break;
+
+        case SID_LOADSYMBOLS:
+            LoadSymbols();
+        break;
+
+        case SID_SAVESYMBOLS:
+            SaveSymbols();
+        break;
+
+        case SID_FONT:
+        {
+            // get device used to retrieve the FontList
+            OutputDevice *pDev = GetPrinter();
+            if (!pDev || pDev->GetDevFontCount() == 0)
+                pDev = &SM_MOD()->GetDefaultVirtualDev();
+            OSL_ENSURE (pDev, "device for font list missing" );
+
+            SmFontTypeDialog aFontTypeDialog(rReq.GetFrameWeld(), pDev);
+
+            SmFormat aOldFormat  = GetFormat();
+            aFontTypeDialog.ReadFrom( aOldFormat );
+            if (aFontTypeDialog.run() == RET_OK)
+            {
+                SmFormat aNewFormat( aOldFormat );
+
+                aFontTypeDialog.WriteTo(aNewFormat);
+                SfxUndoManager *pTmpUndoMgr = GetUndoManager();
+                if (pTmpUndoMgr)
+                    pTmpUndoMgr->AddUndoAction(
+                        std::make_unique<SmFormatAction>(this, aOldFormat, aNewFormat));
+
+                SetFormat( aNewFormat );
+                Repaint();
+            }
+        }
+        break;
+
+        case SID_FONTSIZE:
+        {
+            SmFontSizeDialog aFontSizeDialog(rReq.GetFrameWeld());
+
+            SmFormat aOldFormat  = GetFormat();
+            aFontSizeDialog.ReadFrom( aOldFormat );
+            if (aFontSizeDialog.run() == RET_OK)
+            {
+                SmFormat aNewFormat( aOldFormat );
+
+                aFontSizeDialog.WriteTo(aNewFormat);
+
+                SfxUndoManager *pTmpUndoMgr = GetUndoManager();
+                if (pTmpUndoMgr)
+                    pTmpUndoMgr->AddUndoAction(
+                        std::make_unique<SmFormatAction>(this, aOldFormat, aNewFormat));
+
+                SetFormat( aNewFormat );
+                Repaint();
+            }
+        }
+        break;
+
+        case SID_DISTANCE:
+        {
+            SmDistanceDialog aDistanceDialog(rReq.GetFrameWeld());
+
+            SmFormat aOldFormat  = GetFormat();
+            aDistanceDialog.ReadFrom( aOldFormat );
+            if (aDistanceDialog.run() == RET_OK)
+            {
+                SmFormat aNewFormat( aOldFormat );
+
+                aDistanceDialog.WriteTo(aNewFormat);
+
+                SfxUndoManager *pTmpUndoMgr = GetUndoManager();
+                if (pTmpUndoMgr)
+                    pTmpUndoMgr->AddUndoAction(
+                        std::make_unique<SmFormatAction>(this, aOldFormat, aNewFormat));
+
+                SetFormat( aNewFormat );
+                Repaint();
+            }
+        }
+        break;
+
+        case SID_ALIGN:
+        {
+            SmAlignDialog aAlignDialog(rReq.GetFrameWeld());
+
+            SmFormat aOldFormat  = GetFormat();
+            aAlignDialog.ReadFrom( aOldFormat );
+            if (aAlignDialog.run() == RET_OK)
+            {
+                SmFormat aNewFormat( aOldFormat );
+
+                aAlignDialog.WriteTo(aNewFormat);
+
+                SmModule *pp = SM_MOD();
+                SmFormat aFmt( pp->GetConfig()->GetStandardFormat() );
+                aAlignDialog.WriteTo( aFmt );
+                pp->GetConfig()->SetStandardFormat( aFmt );
+
+                SfxUndoManager *pTmpUndoMgr = GetUndoManager();
+                if (pTmpUndoMgr)
+                    pTmpUndoMgr->AddUndoAction(
+                        std::make_unique<SmFormatAction>(this, aOldFormat, aNewFormat));
+
+                SetFormat( aNewFormat );
+                Repaint();
+            }
+        }
+        break;
+
+        case SID_TEXT:
+        {
+            const SfxStringItem& rItem = static_cast<const SfxStringItem&>(rReq.GetArgs()->Get(SID_TEXT));
+            if (GetText() != rItem.GetValue())
+                SetText(rItem.GetValue());
+        }
+        break;
+
+        case SID_UNDO:
+        case SID_REDO:
+        {
+            SfxUndoManager* pTmpUndoMgr = GetUndoManager();
+            if( pTmpUndoMgr )
+            {
+                sal_uInt16 nId = rReq.GetSlot(), nCnt = 1;
+                const SfxItemSet* pArgs = rReq.GetArgs();
+                const SfxPoolItem* pItem;
+                if( pArgs && SfxItemState::SET == pArgs->GetItemState( nId, false, &pItem ))
+                    nCnt = static_cast<const SfxUInt16Item*>(pItem)->GetValue();
+
+                bool (SfxUndoManager:: *fnDo)();
+
+                size_t nCount;
+                if( SID_UNDO == rReq.GetSlot() )
+                {
+                    nCount = pTmpUndoMgr->GetUndoActionCount();
+                    fnDo = &SfxUndoManager::Undo;
+                }
+                else
+                {
+                    nCount = pTmpUndoMgr->GetRedoActionCount();
+                    fnDo = &SfxUndoManager::Redo;
+                }
+
+                try
+                {
+                    for( ; nCnt && nCount; --nCnt, --nCount )
+                        (pTmpUndoMgr->*fnDo)();
+                }
+                catch( const Exception& )
+                {
+                    DBG_UNHANDLED_EXCEPTION("starmath");
+                }
+            }
+            Repaint();
+            UpdateText();
+            SfxViewFrame* pFrm = SfxViewFrame::GetFirst( this );
+            while( pFrm )
+            {
+                SfxBindings& rBind = pFrm->GetBindings();
+                rBind.Invalidate(SID_UNDO);
+                rBind.Invalidate(SID_REDO);
+                rBind.Invalidate(SID_REPEAT);
+                rBind.Invalidate(SID_CLEARHISTORY);
+                pFrm = SfxViewFrame::GetNext( *pFrm, this );
+            }
+        }
+        break;
+    }
+
+    rReq.Done();
+}
+
+
+void SmDocShell::GetState(SfxItemSet &rSet)
+{
+    SfxWhichIter aIter(rSet);
+
+    for (sal_uInt16 nWh = aIter.FirstWhich();  0 != nWh;  nWh = aIter.NextWhich())
+    {
+        switch (nWh)
+        {
+        case SID_TEXTMODE:
+            rSet.Put(SfxBoolItem(SID_TEXTMODE, GetFormat().IsTextmode()));
+            break;
+
+        case SID_DOCTEMPLATE :
+            rSet.DisableItem(SID_DOCTEMPLATE);
+            break;
+
+        case SID_AUTO_REDRAW :
+            {
+                SmModule  *pp = SM_MOD();
+                bool       bRedraw = pp->GetConfig()->IsAutoRedraw();
+
+                rSet.Put(SfxBoolItem(SID_AUTO_REDRAW, bRedraw));
+            }
+            break;
+
+        case SID_MODIFYSTATUS:
+            {
+                sal_Unicode cMod = ' ';
+                if (IsModified())
+                    cMod = '*';
+                rSet.Put(SfxStringItem(SID_MODIFYSTATUS, OUString(cMod)));
+            }
+            break;
+
+        case SID_TEXT:
+            rSet.Put(SfxStringItem(SID_TEXT, GetText()));
+            break;
+
+        case SID_GAPHIC_SM:
+            //! very old (pre UNO) and ugly hack to invalidate the SmGraphicWindow.
+            //! If mnModifyCount gets changed then the call below will implicitly notify
+            //! SmGraphicController::StateChanged and there the window gets invalidated.
+            //! Thus all the 'mnModifyCount++' before invalidating this slot.
+            rSet.Put(SfxInt16Item(SID_GAPHIC_SM, mnModifyCount));
+            break;
+
+        case SID_UNDO:
+        case SID_REDO:
+            {
+                SfxViewFrame* pFrm = SfxViewFrame::GetFirst( this );
+                if( pFrm )
+                    pFrm->GetSlotState( nWh, nullptr, &rSet );
+                else
+                    rSet.DisableItem( nWh );
+            }
+            break;
+
+        case SID_GETUNDOSTRINGS:
+        case SID_GETREDOSTRINGS:
+            {
+                SfxUndoManager* pTmpUndoMgr = GetUndoManager();
+                if( pTmpUndoMgr )
+                {
+                    OUString(SfxUndoManager:: *fnGetComment)( size_t, bool const ) const;
+
+                    size_t nCount;
+                    if( SID_GETUNDOSTRINGS == nWh )
+                    {
+                        nCount = pTmpUndoMgr->GetUndoActionCount();
+                        fnGetComment = &SfxUndoManager::GetUndoActionComment;
+                    }
+                    else
+                    {
+                        nCount = pTmpUndoMgr->GetRedoActionCount();
+                        fnGetComment = &SfxUndoManager::GetRedoActionComment;
+                    }
+                    if (nCount)
+                    {
+                        OUStringBuffer aBuf;
+                        for (size_t n = 0; n < nCount; ++n)
+                        {
+                            aBuf.append((pTmpUndoMgr->*fnGetComment)( n, SfxUndoManager::TopLevel ));
+                            aBuf.append('\n');
+                        }
+
+                        SfxStringListItem aItem( nWh );
+                        aItem.SetString( aBuf.makeStringAndClear() );
+                        rSet.Put( aItem );
+                    }
+                }
+                else
+                    rSet.DisableItem( nWh );
+            }
+            break;
+        }
+    }
+}
+
+
+SfxUndoManager *SmDocShell::GetUndoManager()
+{
+    if (!mpEditEngine)
+        GetEditEngine();
+    return &mpEditEngine->GetUndoManager();
+}
+
+
+void SmDocShell::SaveSymbols()
+{
+    SmModule *pp = SM_MOD();
+    pp->GetSymbolManager().Save();
+}
+
+
+void SmDocShell::Draw(OutputDevice *pDevice,
+                      const JobSetup &,
+                      sal_uInt16 /*nAspect*/)
+{
+    pDevice->IntersectClipRegion(GetVisArea());
+    Point atmppoint;
+    DrawFormula(*pDevice, atmppoint);
+}
+
+SfxItemPool& SmDocShell::GetPool()
+{
+    return SfxGetpApp()->GetPool();
+}
+
+void SmDocShell::SetVisArea(const tools::Rectangle & rVisArea)
+{
+    tools::Rectangle aNewRect(rVisArea);
+
+    aNewRect.SetPos(Point());
+
+    if (aNewRect.IsWidthEmpty())
+        aNewRect.SetRight( 2000 );
+    if (aNewRect.IsHeightEmpty())
+        aNewRect.SetBottom( 1000 );
+
+    bool bIsEnabled = IsEnableSetModified();
+    if ( bIsEnabled )
+        EnableSetModified( false );
+
+    //TODO/LATER: it's unclear how this interacts with the SFX code
+    // If outplace editing, then don't resize the OutplaceWindow. But the
+    // ObjectShell has to resize.
+    bool bUnLockFrame;
+    if( GetCreateMode() == SfxObjectCreateMode::EMBEDDED && !IsInPlaceActive() && GetFrame() )
+    {
+        GetFrame()->LockAdjustPosSizePixel();
+        bUnLockFrame = true;
+    }
+    else
+        bUnLockFrame = false;
+
+    SfxObjectShell::SetVisArea( aNewRect );
+
+    if( bUnLockFrame )
+        GetFrame()->UnlockAdjustPosSizePixel();
+
+    if ( bIsEnabled )
+        EnableSetModified( bIsEnabled );
+}
+
+
+void SmDocShell::FillClass(SvGlobalName* pClassName,
+                           SotClipboardFormatId*  pFormat,
+                           OUString* pFullTypeName,
+                           sal_Int32 nFileFormat,
+                           bool bTemplate /* = false */) const
+{
+    if (nFileFormat == SOFFICE_FILEFORMAT_60 )
+    {
+        *pClassName     = SvGlobalName(SO3_SM_CLASSID_60);
+        *pFormat        = SotClipboardFormatId::STARMATH_60;
+        *pFullTypeName  = SmResId(STR_MATH_DOCUMENT_FULLTYPE_CURRENT);
+    }
+    else if (nFileFormat == SOFFICE_FILEFORMAT_8 )
+    {
+        *pClassName     = SvGlobalName(SO3_SM_CLASSID_60);
+        *pFormat        = bTemplate ? SotClipboardFormatId::STARMATH_8_TEMPLATE : SotClipboardFormatId::STARMATH_8;
+        *pFullTypeName  = SmResId(STR_MATH_DOCUMENT_FULLTYPE_CURRENT);
+    }
+}
+
+void SmDocShell::SetModified(bool bModified)
+{
+    if( IsEnableSetModified() )
+    {
+        SfxObjectShell::SetModified( bModified );
+        Broadcast(SfxHint(SfxHintId::DocChanged));
+    }
+}
+
+bool SmDocShell::WriteAsMathType3( SfxMedium& rMedium )
+{
+    OUStringBuffer aTextAsBuffer(maText);
+    MathType aEquation(aTextAsBuffer, mpTree.get());
+    return aEquation.ConvertFromStarMath( rMedium );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/edit.cxx b/starmath/source/edit.cxx
new file mode 100644
index 000000000..755bb3b5c
--- /dev/null
+++ b/starmath/source/edit.cxx
@@ -0,0 +1,999 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <starmath.hrc>
+#include <helpids.h>
+
+#include <vcl/commandevent.hxx>
+#include <vcl/event.hxx>
+#include <vcl/scrbar.hxx>
+#include <vcl/settings.hxx>
+
+#include <editeng/editview.hxx>
+#include <editeng/editeng.hxx>
+#include <sfx2/dispatch.hxx>
+#include <sfx2/sfxsids.hrc>
+#include <svl/stritem.hxx>
+#include <sfx2/viewfrm.hxx>
+#include <svx/AccessibleTextHelper.hxx>
+#include <svtools/colorcfg.hxx>
+#include <osl/diagnose.h>
+
+#include <edit.hxx>
+#include <smmod.hxx>
+#include <view.hxx>
+#include <document.hxx>
+#include "cfgitem.hxx"
+#include "accessibility.hxx"
+#include <memory>
+
+#define SCROLL_LINE         24
+
+
+using namespace com::sun::star::accessibility;
+using namespace com::sun::star;
+
+
+void SmGetLeftSelectionPart(const ESelection &rSel,
+                            sal_Int32 &nPara, sal_uInt16 &nPos)
+    // returns paragraph number and position of the selections left part
+{
+    // compare start and end of selection and use the one that comes first
+    if (    rSel.nStartPara <  rSel.nEndPara
+        ||  (rSel.nStartPara == rSel.nEndPara  &&  rSel.nStartPos < rSel.nEndPos) )
+    {   nPara = rSel.nStartPara;
+        nPos  = rSel.nStartPos;
+    }
+    else
+    {   nPara = rSel.nEndPara;
+        nPos  = rSel.nEndPos;
+    }
+}
+
+bool SmEditWindow::IsInlineEditEnabled()
+{
+    SmViewShell *pView = GetView();
+    return pView && pView->IsInlineEditEnabled();
+}
+
+
+SmEditWindow::SmEditWindow( SmCmdBoxWindow &rMyCmdBoxWin ) :
+    Window              (&rMyCmdBoxWin, WB_BORDER),
+    DropTargetHelper    ( this ),
+    rCmdBox             (rMyCmdBoxWin),
+    aModifyIdle         ("SmEditWindow ModifyIdle"),
+    aCursorMoveIdle     ("SmEditWindow CursorMoveIdle")
+{
+    set_id("math_edit");
+    SetHelpId(HID_SMA_COMMAND_WIN_EDIT);
+    SetMapMode(MapMode(MapUnit::MapPixel));
+
+    // Even RTL languages don't use RTL for math
+    EnableRTL( false );
+
+    // compare DataChanged
+    SetBackground( GetSettings().GetStyleSettings().GetWindowColor() );
+
+    aModifyIdle.SetInvokeHandler(LINK(this, SmEditWindow, ModifyTimerHdl));
+    aModifyIdle.SetPriority(TaskPriority::LOWEST);
+
+    if (!IsInlineEditEnabled())
+    {
+        aCursorMoveIdle.SetInvokeHandler(LINK(this, SmEditWindow, CursorMoveTimerHdl));
+        aCursorMoveIdle.SetPriority(TaskPriority::LOWEST);
+    }
+
+    // if not called explicitly the this edit window within the
+    // command window will just show an empty gray panel.
+    Show();
+}
+
+
+SmEditWindow::~SmEditWindow()
+{
+    disposeOnce();
+}
+
+void SmEditWindow::dispose()
+{
+    aModifyIdle.Stop();
+
+    StartCursorMove();
+
+    // clean up of classes used for accessibility
+    // must be done before EditView (and thus EditEngine) is no longer
+    // available for those classes.
+    if (mxAccessible.is())
+    {
+        mxAccessible->ClearWin();    // make Accessible nonfunctional
+        mxAccessible.clear();
+    }
+
+    if (pEditView)
+    {
+        EditEngine *pEditEngine = pEditView->GetEditEngine();
+        if (pEditEngine)
+        {
+            pEditEngine->SetStatusEventHdl( Link<EditStatus&,void>() );
+            pEditEngine->RemoveView( pEditView.get() );
+        }
+        pEditView.reset();
+    }
+
+    pHScrollBar.disposeAndClear();
+    pVScrollBar.disposeAndClear();
+    pScrollBox.disposeAndClear();
+
+    DropTargetHelper::dispose();
+    vcl::Window::dispose();
+}
+
+void SmEditWindow::StartCursorMove()
+{
+    if (!IsInlineEditEnabled())
+        aCursorMoveIdle.Stop();
+}
+
+void SmEditWindow::InvalidateSlots()
+{
+    SfxBindings& rBind = GetView()->GetViewFrame()->GetBindings();
+    rBind.Invalidate(SID_COPY);
+    rBind.Invalidate(SID_CUT);
+    rBind.Invalidate(SID_DELETE);
+}
+
+SmViewShell * SmEditWindow::GetView()
+{
+    return rCmdBox.GetView();
+}
+
+
+SmDocShell * SmEditWindow::GetDoc()
+{
+    SmViewShell *pView = rCmdBox.GetView();
+    return pView ? pView->GetDoc() : nullptr;
+}
+
+EditView * SmEditWindow::GetEditView()
+{
+    return pEditView.get();
+}
+
+EditEngine * SmEditWindow::GetEditEngine()
+{
+    EditEngine *pEditEng = nullptr;
+    if (pEditView)
+        pEditEng = pEditView->GetEditEngine();
+    else
+    {
+        SmDocShell *pDoc = GetDoc();
+        if (pDoc)
+            pEditEng = &pDoc->GetEditEngine();
+    }
+    return pEditEng;
+}
+
+void SmEditWindow::ApplySettings(vcl::RenderContext& rRenderContext)
+{
+    const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
+    rRenderContext.SetBackground(rStyleSettings.GetWindowColor());
+}
+
+void SmEditWindow::DataChanged( const DataChangedEvent& rDCEvt )
+{
+    Window::DataChanged( rDCEvt );
+
+    if (!((rDCEvt.GetType() == DataChangedEventType::FONTS) ||
+          (rDCEvt.GetType() == DataChangedEventType::FONTSUBSTITUTION) ||
+          ((rDCEvt.GetType() == DataChangedEventType::SETTINGS) &&
+           (rDCEvt.GetFlags() & AllSettingsFlags::STYLE))))
+        return;
+
+    EditEngine *pEditEngine = GetEditEngine();
+    SmDocShell *pDoc = GetDoc();
+
+    if (pEditEngine && pDoc)
+    {
+        //!
+        //! see also SmDocShell::GetEditEngine() !
+        //!
+        const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
+
+        pDoc->UpdateEditEngineDefaultFonts(rStyleSettings.GetFieldTextColor());
+        pEditEngine->SetBackgroundColor(rStyleSettings.GetFieldColor());
+        pEditEngine->SetDefTab(sal_uInt16(GetTextWidth("XXXX")));
+
+        // forces new settings to be used
+        // unfortunately this resets the whole edit engine
+        // thus we need to save at least the text
+        OUString aTxt( pEditEngine->GetText() );
+        pEditEngine->Clear();   //incorrect font size
+        pEditEngine->SetText( aTxt );
+
+        AdjustScrollBars();
+        Resize();
+    }
+
+    Invalidate();
+}
+
+IMPL_LINK_NOARG( SmEditWindow, ModifyTimerHdl, Timer *, void )
+{
+    UpdateStatus(false);
+    aModifyIdle.Stop();
+}
+
+IMPL_LINK_NOARG(SmEditWindow, CursorMoveTimerHdl, Timer *, void)
+    // every once in a while check cursor position (selection) of edit
+    // window and if it has changed (try to) set the formula-cursor
+    // according to that.
+{
+    if (IsInlineEditEnabled())
+        return;
+
+    ESelection aNewSelection(GetSelection());
+
+    if (aNewSelection != aOldSelection)
+    {
+        SmViewShell *pView = rCmdBox.GetView();
+        if (pView)
+        {
+            // get row and column to look for
+            sal_Int32  nRow;
+            sal_uInt16 nCol;
+            SmGetLeftSelectionPart(aNewSelection, nRow, nCol);
+            nRow++;
+            nCol++;
+            pView->GetGraphicWindow().SetCursorPos(static_cast<sal_uInt16>(nRow), nCol);
+            aOldSelection = aNewSelection;
+        }
+    }
+    aCursorMoveIdle.Stop();
+}
+
+void SmEditWindow::Resize()
+{
+    if (!pEditView)
+        CreateEditView();
+
+    if (pEditView)
+    {
+        pEditView->SetOutputArea(AdjustScrollBars());
+        pEditView->ShowCursor();
+
+        OSL_ENSURE( pEditView->GetEditEngine(), "EditEngine missing" );
+        const long nMaxVisAreaStart = pEditView->GetEditEngine()->GetTextHeight() -
+                                      pEditView->GetOutputArea().GetHeight();
+        if (pEditView->GetVisArea().Top() > nMaxVisAreaStart)
+        {
+            tools::Rectangle aVisArea(pEditView->GetVisArea() );
+            aVisArea.SetTop( std::max<long>(nMaxVisAreaStart, 0) );
+            aVisArea.SetSize(pEditView->GetOutputArea().GetSize());
+            pEditView->SetVisArea(aVisArea);
+            pEditView->ShowCursor();
+        }
+        InitScrollBars();
+    }
+    Invalidate();
+}
+
+void SmEditWindow::MouseButtonUp(const MouseEvent &rEvt)
+{
+    if (pEditView)
+        pEditView->MouseButtonUp(rEvt);
+    else
+        Window::MouseButtonUp (rEvt);
+
+    if (!IsInlineEditEnabled())
+        CursorMoveTimerHdl(&aCursorMoveIdle);
+    InvalidateSlots();
+}
+
+void SmEditWindow::MouseButtonDown(const MouseEvent &rEvt)
+{
+    if (pEditView)
+        pEditView->MouseButtonDown(rEvt);
+    else
+        Window::MouseButtonDown (rEvt);
+
+    GrabFocus();
+}
+
+void SmEditWindow::Command(const CommandEvent& rCEvt)
+{
+    //pass alt press/release to parent impl
+    if (rCEvt.GetCommand() == CommandEventId::ModKeyChange)
+    {
+        Window::Command(rCEvt);
+        return;
+    }
+
+    bool bForwardEvt = true;
+    if (rCEvt.GetCommand() == CommandEventId::ContextMenu)
+    {
+        GetParent()->ToTop();
+
+        Point aPoint = rCEvt.GetMousePosPixel();
+        SmViewShell* pViewSh = rCmdBox.GetView();
+        if (pViewSh)
+            pViewSh->GetViewFrame()->GetDispatcher()->ExecutePopup("edit", this, &aPoint);
+        bForwardEvt = false;
+    }
+    else if (rCEvt.GetCommand() == CommandEventId::Wheel)
+        bForwardEvt = !HandleWheelCommands( rCEvt );
+
+    if (bForwardEvt)
+    {
+        if (pEditView)
+            pEditView->Command( rCEvt );
+        else
+            Window::Command (rCEvt);
+    }
+}
+
+bool SmEditWindow::HandleWheelCommands( const CommandEvent &rCEvt )
+{
+    bool bCommandHandled = false;    // true if the CommandEvent needs not
+                                    // to be passed on (because it has fully
+                                    // been taken care of).
+
+    const CommandWheelData* pWData = rCEvt.GetWheelData();
+    if (pWData)
+    {
+        if (CommandWheelMode::ZOOM == pWData->GetMode())
+            bCommandHandled = true;     // no zooming in Command window
+        else
+            bCommandHandled = HandleScrollCommand( rCEvt, pHScrollBar.get(), pVScrollBar.get());
+    }
+
+    return bCommandHandled;
+}
+
+void SmEditWindow::KeyInput(const KeyEvent& rKEvt)
+{
+    if (rKEvt.GetKeyCode().GetCode() == KEY_ESCAPE)
+    {
+        bool bCallBase = true;
+        SfxViewShell* pViewShell = GetView();
+        if ( dynamic_cast<const SmViewShell *>(pViewShell) )
+        {
+            // Terminate possible InPlace mode
+            bCallBase = !pViewShell->Escape();
+        }
+        if ( bCallBase )
+            Window::KeyInput( rKEvt );
+    }
+    else
+    {
+        StartCursorMove();
+
+        bool autoClose = false;
+        if (!pEditView)
+            CreateEditView();
+        ESelection aSelection = pEditView->GetSelection();
+        // as we don't support RTL in Math, we need to swap values from selection when they were done
+        // in RTL form
+        aSelection.Adjust();
+        OUString selected = pEditView->GetEditEngine()->GetText(aSelection);
+
+        // Check is auto close brackets/braces is disabled
+        SmModule *pMod = SM_MOD();
+        if (pMod && !pMod->GetConfig()->IsAutoCloseBrackets())
+            autoClose = false;
+        else if (selected.trim() == "<?>")
+            autoClose = true;
+        else if (selected.isEmpty() && !aSelection.HasRange())
+        {
+            selected = pEditView->GetEditEngine()->GetText(aSelection.nEndPara);
+            if (!selected.isEmpty())
+            {
+                sal_Int32 index = selected.indexOf("\n", aSelection.nEndPos);
+                if (index != -1)
+                {
+                    selected = selected.copy(index, sal_Int32(aSelection.nEndPos-index));
+                    if (selected.trim().isEmpty())
+                        autoClose = true;
+                }
+                else
+                {
+                    sal_Int32 length = selected.getLength();
+                    if (aSelection.nEndPos == length)
+                        autoClose = true;
+                    else
+                    {
+                        selected = selected.copy(aSelection.nEndPos);
+                        if (selected.trim().isEmpty())
+                            autoClose = true;
+                    }
+                }
+            }
+            else
+                autoClose = true;
+        }
+
+        if ( !pEditView->PostKeyEvent(rKEvt) )
+        {
+            SmViewShell *pView = GetView();
+            if ( pView && !pView->KeyInput(rKEvt) )
+            {
+                // F1 (help) leads to the destruction of this
+                Flush();
+                if ( aModifyIdle.IsActive() )
+                    aModifyIdle.Stop();
+                Window::KeyInput(rKEvt);
+            }
+            else
+            {
+                // SFX has maybe called a slot of the view and thus (because of a hack in SFX)
+                // set the focus to the view
+                SfxViewShell* pVShell = GetView();
+                if ( dynamic_cast<const SmViewShell *>(pVShell) &&
+                     static_cast<SmViewShell*>(pVShell)->GetGraphicWindow().HasFocus() )
+                {
+                    GrabFocus();
+                }
+            }
+        }
+        else
+        {
+            // have doc-shell modified only for formula input/change and not
+            // cursor travelling and such things...
+            SmDocShell *pDocShell = GetDoc();
+            EditEngine *pEditEngine = GetEditEngine();
+            if (pDocShell && pEditEngine)
+                pDocShell->SetModified(pEditEngine->IsModified());
+            aModifyIdle.Start();
+        }
+
+        // get the current char of the key event
+        sal_Unicode cCharCode = rKEvt.GetCharCode();
+        OUString sClose;
+
+        if (cCharCode == '{')
+            sClose = "  }";
+        else if (cCharCode == '[')
+            sClose = "  ]";
+        else if (cCharCode == '(')
+            sClose = "  )";
+
+        // auto close the current character only when needed
+        if (!sClose.isEmpty() && autoClose)
+        {
+            pEditView->InsertText(sClose);
+            // position it at center of brackets
+            aSelection.nStartPos += 2;
+            aSelection.nEndPos = aSelection.nStartPos;
+            pEditView->SetSelection(aSelection);
+        }
+
+        InvalidateSlots();
+    }
+}
+
+void SmEditWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
+{
+    if (!pEditView)
+        CreateEditView();
+    pEditView->Paint(rRect, &rRenderContext);
+}
+
+void SmEditWindow::CreateEditView()
+{
+    EditEngine *pEditEngine = GetEditEngine();
+
+    //! pEditEngine and pEditView may be 0.
+    //! For example when the program is used by the document-converter
+    if (pEditView || !pEditEngine)
+        return;
+
+    pEditView.reset(new EditView(pEditEngine, this));
+    pEditEngine->InsertView( pEditView.get() );
+
+    if (!pVScrollBar)
+        pVScrollBar = VclPtr<ScrollBar>::Create(this, WinBits(WB_VSCROLL));
+    if (!pHScrollBar)
+        pHScrollBar = VclPtr<ScrollBar>::Create(this, WinBits(WB_HSCROLL));
+    if (!pScrollBox)
+        pScrollBox  = VclPtr<ScrollBarBox>::Create(this);
+    pVScrollBar->SetScrollHdl(LINK(this, SmEditWindow, ScrollHdl));
+    pHScrollBar->SetScrollHdl(LINK(this, SmEditWindow, ScrollHdl));
+    pVScrollBar->EnableDrag();
+    pHScrollBar->EnableDrag();
+
+    pEditView->SetOutputArea(AdjustScrollBars());
+
+    ESelection eSelection;
+
+    pEditView->SetSelection(eSelection);
+    PaintImmediately();
+    pEditView->ShowCursor();
+
+    pEditEngine->SetStatusEventHdl( LINK(this, SmEditWindow, EditStatusHdl) );
+    SetPointer(pEditView->GetPointer());
+
+    SetScrollBarRanges();
+}
+
+
+IMPL_LINK_NOARG( SmEditWindow, EditStatusHdl, EditStatus&, void )
+{
+    if (pEditView)
+        Resize();
+}
+
+IMPL_LINK( SmEditWindow, ScrollHdl, ScrollBar *, /*pScrollBar*/, void )
+{
+    OSL_ENSURE(pEditView, "EditView missing");
+    if (pEditView)
+    {
+        pEditView->SetVisArea(tools::Rectangle(Point(pHScrollBar->GetThumbPos(),
+                                            pVScrollBar->GetThumbPos()),
+                                        pEditView->GetVisArea().GetSize()));
+        pEditView->Invalidate();
+    }
+}
+
+tools::Rectangle SmEditWindow::AdjustScrollBars()
+{
+    const Size aOut( GetOutputSizePixel() );
+    tools::Rectangle aRect( Point(), aOut );
+
+    if (pVScrollBar && pHScrollBar && pScrollBox)
+    {
+        const long nTmp = GetSettings().GetStyleSettings().GetScrollBarSize();
+        Point aPt( aRect.TopRight() ); aPt.AdjustX( -(nTmp -1) );
+        pVScrollBar->SetPosSizePixel( aPt, Size(nTmp, aOut.Height() - nTmp));
+
+        aPt = aRect.BottomLeft(); aPt.AdjustY( -(nTmp - 1) );
+        pHScrollBar->SetPosSizePixel( aPt, Size(aOut.Width() - nTmp, nTmp));
+
+        aPt.setX( pHScrollBar->GetSizePixel().Width() );
+        aPt.setY( pVScrollBar->GetSizePixel().Height() );
+        pScrollBox->SetPosSizePixel(aPt, Size(nTmp, nTmp ));
+
+        aRect.SetRight( aPt.X() - 2 );
+        aRect.SetBottom( aPt.Y() - 2 );
+    }
+    return aRect;
+}
+
+void SmEditWindow::SetScrollBarRanges()
+{
+    // Extra method, not InitScrollBars, since it's also being used for EditEngine events
+    EditEngine *pEditEngine = GetEditEngine();
+    if (pVScrollBar && pHScrollBar && pEditEngine && pEditView)
+    {
+        long nTmp = pEditEngine->GetTextHeight();
+        pVScrollBar->SetRange(Range(0, nTmp));
+        pVScrollBar->SetThumbPos(pEditView->GetVisArea().Top());
+
+        nTmp = pEditEngine->GetPaperSize().Width();
+        pHScrollBar->SetRange(Range(0,nTmp));
+        pHScrollBar->SetThumbPos(pEditView->GetVisArea().Left());
+    }
+}
+
+void SmEditWindow::InitScrollBars()
+{
+    if (!(pVScrollBar && pHScrollBar && pScrollBox && pEditView))
+        return;
+
+    const Size aOut( pEditView->GetOutputArea().GetSize() );
+    pVScrollBar->SetVisibleSize(aOut.Height());
+    pVScrollBar->SetPageSize(aOut.Height() * 8 / 10);
+    pVScrollBar->SetLineSize(aOut.Height() * 2 / 10);
+
+    pHScrollBar->SetVisibleSize(aOut.Width());
+    pHScrollBar->SetPageSize(aOut.Width() * 8 / 10);
+    pHScrollBar->SetLineSize(SCROLL_LINE );
+
+    SetScrollBarRanges();
+
+    pVScrollBar->Show();
+    pHScrollBar->Show();
+    pScrollBox->Show();
+}
+
+
+OUString SmEditWindow::GetText() const
+{
+    OUString aText;
+    EditEngine *pEditEngine = const_cast< SmEditWindow* >(this)->GetEditEngine();
+    OSL_ENSURE( pEditEngine, "EditEngine missing" );
+    if (pEditEngine)
+        aText = pEditEngine->GetText();
+    return aText;
+}
+
+
+void SmEditWindow::SetText(const OUString& rText)
+{
+    EditEngine *pEditEngine = GetEditEngine();
+    OSL_ENSURE( pEditEngine, "EditEngine missing" );
+    if (!pEditEngine || pEditEngine->IsModified())
+        return;
+
+    if (!pEditView)
+        CreateEditView();
+
+    ESelection eSelection = pEditView->GetSelection();
+
+    pEditEngine->SetText(rText);
+    pEditEngine->ClearModifyFlag();
+
+    // Restarting the timer here, prevents calling the handlers for other (currently inactive)
+    // math tasks
+    aModifyIdle.Start();
+
+    pEditView->SetSelection(eSelection);
+}
+
+
+void SmEditWindow::GetFocus()
+{
+    Window::GetFocus();
+
+    if (mxAccessible.is())
+    {
+        // Note: will implicitly send the AccessibleStateType::FOCUSED event
+        ::accessibility::AccessibleTextHelper *pHelper = mxAccessible->GetTextHelper();
+        if (pHelper)
+            pHelper->SetFocus();
+    }
+
+    if (!pEditView)
+         CreateEditView();
+    EditEngine *pEditEngine = GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->SetStatusEventHdl( LINK(this, SmEditWindow, EditStatusHdl) );
+
+    //Let SmViewShell know we got focus
+    if(GetView() && IsInlineEditEnabled())
+        GetView()->SetInsertIntoEditWindow(true);
+}
+
+
+void SmEditWindow::LoseFocus()
+{
+    EditEngine *pEditEngine = GetEditEngine();
+    if (pEditEngine)
+        pEditEngine->SetStatusEventHdl( Link<EditStatus&,void>() );
+
+    Window::LoseFocus();
+
+    if (mxAccessible.is())
+    {
+        // Note: will implicitly send the AccessibleStateType::FOCUSED event
+        ::accessibility::AccessibleTextHelper *pHelper = mxAccessible->GetTextHelper();
+        if (pHelper)
+            pHelper->SetFocus(false);
+    }
+}
+
+
+bool SmEditWindow::IsAllSelected() const
+{
+    bool bRes = false;
+    EditEngine *pEditEngine = const_cast<SmEditWindow *>(this)->GetEditEngine();
+    OSL_ENSURE( pEditView, "NULL pointer" );
+    OSL_ENSURE( pEditEngine, "NULL pointer" );
+    if (pEditEngine  &&  pEditView)
+    {
+        ESelection eSelection( pEditView->GetSelection() );
+        sal_Int32 nParaCnt = pEditEngine->GetParagraphCount();
+        if (!(nParaCnt - 1))
+        {
+            sal_Int32 nTextLen = pEditEngine->GetText().getLength();
+            bRes = !eSelection.nStartPos && (eSelection.nEndPos == nTextLen - 1);
+        }
+        else
+        {
+            bRes = !eSelection.nStartPara && (eSelection.nEndPara == nParaCnt - 1);
+        }
+    }
+    return bRes;
+}
+
+void SmEditWindow::SelectAll()
+{
+    OSL_ENSURE( pEditView, "NULL pointer" );
+    if (pEditView)
+    {
+        // ALL as last two parameters refers to the end of the text
+        pEditView->SetSelection( ESelection( 0, 0, EE_PARA_ALL, EE_TEXTPOS_ALL ) );
+    }
+}
+
+void SmEditWindow::MarkError(const Point &rPos)
+{
+    OSL_ENSURE( pEditView, "EditView missing" );
+    if (pEditView)
+    {
+        const sal_uInt16        nCol = sal::static_int_cast< sal_uInt16 >(rPos.X());
+        const sal_uInt16        nRow = sal::static_int_cast< sal_uInt16 >(rPos.Y() - 1);
+
+        pEditView->SetSelection(ESelection(nRow, nCol - 1, nRow, nCol));
+        GrabFocus();
+    }
+}
+
+// Makes selection to next <?> symbol
+void SmEditWindow::SelNextMark()
+{
+    EditEngine *pEditEngine = GetEditEngine();
+    OSL_ENSURE( pEditView, "NULL pointer" );
+    OSL_ENSURE( pEditEngine, "NULL pointer" );
+    if (!pEditEngine || !pEditView)
+        return;
+
+    ESelection eSelection = pEditView->GetSelection();
+    sal_Int32 nPos = eSelection.nEndPos;
+    sal_Int32 nCounts = pEditEngine->GetParagraphCount();
+
+    while (eSelection.nEndPara < nCounts)
+    {
+        OUString aText = pEditEngine->GetText(eSelection.nEndPara);
+        nPos = aText.indexOf("<?>", nPos);
+        if (nPos != -1)
+        {
+            pEditView->SetSelection(ESelection(
+                eSelection.nEndPara, nPos, eSelection.nEndPara, nPos + 3));
+            break;
+        }
+
+        nPos = 0;
+        eSelection.nEndPara++;
+    }
+}
+
+void SmEditWindow::SelPrevMark()
+{
+    EditEngine *pEditEngine = GetEditEngine();
+    OSL_ENSURE( pEditEngine, "NULL pointer" );
+    OSL_ENSURE( pEditView, "NULL pointer" );
+    if (!(pEditEngine  &&  pEditView))
+        return;
+
+    ESelection eSelection = pEditView->GetSelection();
+    sal_Int32 nPara = eSelection.nStartPara;
+    sal_Int32 nMax = eSelection.nStartPos;
+    OUString aText(pEditEngine->GetText(nPara));
+    const OUString aMark("<?>");
+    sal_Int32 nPos;
+
+    while ( (nPos = aText.lastIndexOf(aMark, nMax)) < 0 )
+    {
+        if (--nPara < 0)
+            return;
+        aText = pEditEngine->GetText(nPara);
+        nMax = aText.getLength();
+    }
+    pEditView->SetSelection(ESelection(nPara, nPos, nPara, nPos + 3));
+}
+
+bool SmEditWindow::HasMark(const OUString& rText)
+    // returns true iff 'rText' contains a mark
+{
+    return rText.indexOf("<?>") != -1;
+}
+
+void SmEditWindow::MouseMove(const MouseEvent &rEvt)
+{
+    if (pEditView)
+        pEditView->MouseMove(rEvt);
+}
+
+sal_Int8 SmEditWindow::AcceptDrop( const AcceptDropEvent& /*rEvt*/ )
+{
+    return DND_ACTION_NONE;
+}
+
+sal_Int8 SmEditWindow::ExecuteDrop( const ExecuteDropEvent& /*rEvt*/ )
+{
+    return DND_ACTION_NONE;
+}
+
+ESelection SmEditWindow::GetSelection() const
+{
+    // pointer may be 0 when reloading a document and the old view
+    // was already destroyed
+    //(OSL_ENSURE( pEditView, "NULL pointer" );
+    ESelection eSel;
+    if (pEditView)
+        eSel = pEditView->GetSelection();
+    return eSel;
+}
+
+void SmEditWindow::SetSelection(const ESelection &rSel)
+{
+    OSL_ENSURE( pEditView, "NULL pointer" );
+    if (pEditView)
+        pEditView->SetSelection(rSel);
+    InvalidateSlots();
+}
+
+bool SmEditWindow::IsEmpty() const
+{
+    EditEngine *pEditEngine = const_cast<SmEditWindow *>(this)->GetEditEngine();
+    bool bEmpty = ( pEditEngine && pEditEngine->GetTextLen() == 0 );
+    return bEmpty;
+}
+
+bool SmEditWindow::IsSelected() const
+{
+    return pEditView && pEditView->HasSelection();
+}
+
+
+void SmEditWindow::UpdateStatus( bool bSetDocModified )
+{
+    SmModule *pMod = SM_MOD();
+    if (pMod && pMod->GetConfig()->IsAutoRedraw())
+        Flush();
+    if ( bSetDocModified )
+        GetDoc()->SetModified();
+}
+
+void SmEditWindow::Cut()
+{
+    OSL_ENSURE( pEditView, "EditView missing" );
+    if (pEditView)
+    {
+        pEditView->Cut();
+        UpdateStatus(true);
+    }
+}
+
+void SmEditWindow::Copy()
+{
+    OSL_ENSURE( pEditView, "EditView missing" );
+    if (pEditView)
+        pEditView->Copy();
+}
+
+void SmEditWindow::Paste()
+{
+    OSL_ENSURE( pEditView, "EditView missing" );
+    if (pEditView)
+    {
+        pEditView->Paste();
+        UpdateStatus(true);
+    }
+}
+
+void SmEditWindow::Delete()
+{
+    OSL_ENSURE( pEditView, "EditView missing" );
+    if (pEditView)
+    {
+        pEditView->DeleteSelected();
+        UpdateStatus(true);
+    }
+}
+
+void SmEditWindow::InsertText(const OUString& rText)
+{
+    OSL_ENSURE( pEditView, "EditView missing" );
+    if (!pEditView)
+        return;
+
+    // Note: Insertion of a space in front of commands is done here and
+    // in SmEditWindow::InsertCommand.
+    ESelection aSelection = pEditView->GetSelection();
+    OUString aCurrentFormula = pEditView->GetEditEngine()->GetText();
+    sal_Int32 nStartIndex = 0;
+
+    // get the start position (when we get a multi line formula)
+    for (sal_Int32 nParaPos = 0; nParaPos < aSelection.nStartPara; nParaPos++)
+         nStartIndex = aCurrentFormula.indexOf("\n", nStartIndex) + 1;
+
+    nStartIndex += aSelection.nStartPos;
+
+    // TODO: unify this function with the InsertCommand: The do the same thing for different
+    // callers
+    OUString string(rText);
+
+    OUString selected(pEditView->GetSelected());
+    // if we have text selected, use it in the first placeholder
+    if (!selected.isEmpty())
+        string = string.replaceFirst("<?>", selected);
+
+    // put a space before a new command if not in the beginning of a line
+    if (aSelection.nStartPos > 0 && aCurrentFormula[nStartIndex - 1] != ' ')
+        string = " " + string;
+
+    /*
+      fdo#65588 -  Elements Dock: Scrollbar moves into input window
+      This change "solves" the visual problem. But I don't think so
+      this is the best solution.
+    */
+    pVScrollBar->Hide();
+    pHScrollBar->Hide();
+    pEditView->InsertText(string);
+    AdjustScrollBars();
+    pVScrollBar->Show();
+    pHScrollBar->Show();
+
+    // Remember start of the selection and move the cursor there afterwards.
+    aSelection.nEndPara = aSelection.nStartPara;
+    if (HasMark(string))
+    {
+        aSelection.nEndPos = aSelection.nStartPos;
+        pEditView->SetSelection(aSelection);
+        SelNextMark();
+    }
+    else
+    {   // set selection after inserted text
+        aSelection.nEndPos = aSelection.nStartPos + string.getLength();
+        aSelection.nStartPos = aSelection.nEndPos;
+        pEditView->SetSelection(aSelection);
+    }
+
+    aModifyIdle.Start();
+    StartCursorMove();
+    GrabFocus();
+}
+
+void SmEditWindow::Flush()
+{
+    EditEngine *pEditEngine = GetEditEngine();
+    if (pEditEngine  &&  pEditEngine->IsModified())
+    {
+        pEditEngine->ClearModifyFlag();
+        SmViewShell *pViewSh = rCmdBox.GetView();
+        if (pViewSh)
+        {
+            std::unique_ptr<SfxStringItem> pTextToFlush = std::make_unique<SfxStringItem>(SID_TEXT, GetText());
+            pViewSh->GetViewFrame()->GetDispatcher()->ExecuteList(
+                    SID_TEXT, SfxCallMode::RECORD,
+                    { pTextToFlush.get() });
+        }
+    }
+    if (aCursorMoveIdle.IsActive())
+    {
+        aCursorMoveIdle.Stop();
+        CursorMoveTimerHdl(&aCursorMoveIdle);
+    }
+}
+
+void SmEditWindow::DeleteEditView()
+{
+    if (pEditView)
+    {
+        std::unique_ptr<EditEngine> xEditEngine(pEditView->GetEditEngine());
+        if (xEditEngine)
+        {
+            xEditEngine->SetStatusEventHdl( Link<EditStatus&,void>() );
+            xEditEngine->RemoveView( pEditView.get() );
+        }
+        pEditView.reset();
+    }
+}
+
+uno::Reference< XAccessible > SmEditWindow::CreateAccessible()
+{
+    if (!mxAccessible.is())
+    {
+        mxAccessible.set(new SmEditAccessible( this ));
+        mxAccessible->Init();
+    }
+    return uno::Reference< XAccessible >(mxAccessible.get());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/eqnolefilehdr.cxx b/starmath/source/eqnolefilehdr.cxx
new file mode 100644
index 000000000..f211f1aaa
--- /dev/null
+++ b/starmath/source/eqnolefilehdr.cxx
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "eqnolefilehdr.hxx"
+#include <sot/storage.hxx>
+
+
+bool GetMathTypeVersion( SotStorage* pStor, sal_uInt8 &nVersion )
+{
+    sal_uInt8 nVer = 0;
+    bool bSuccess = false;
+
+
+    // code snippet copied from MathType::Parse
+
+    tools::SvRef<SotStorageStream> xSrc = pStor->OpenSotStream(
+        "Equation Native",
+        StreamMode::STD_READ);
+    if ( (!xSrc.is()) || (ERRCODE_NONE != xSrc->GetError()))
+        return bSuccess;
+    SotStorageStream *pS = xSrc.get();
+    pS->SetEndian( SvStreamEndian::LITTLE );
+
+    EQNOLEFILEHDR aHdr;
+    aHdr.Read(pS);
+    pS->ReadUChar( nVer );
+
+    if (!pS->GetError())
+    {
+        nVersion = nVer;
+        bSuccess = true;
+    }
+    return bSuccess;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/eqnolefilehdr.hxx b/starmath/source/eqnolefilehdr.hxx
new file mode 100644
index 000000000..29f93cd00
--- /dev/null
+++ b/starmath/source/eqnolefilehdr.hxx
@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_EQNOLEFILEHDR_HXX
+#define INCLUDED_STARMATH_SOURCE_EQNOLEFILEHDR_HXX
+
+#include <sal/types.h>
+#include <tools/stream.hxx>
+
+class SotStorage;
+
+#define EQNOLEFILEHDR_SIZE 28
+
+class EQNOLEFILEHDR
+{
+public:
+    EQNOLEFILEHDR() : nCBHdr(0),nVersion(0),
+        nCf(0),nCBObject(0),nReserved1(0),nReserved2(0),
+        nReserved3(0), nReserved4(0) {}
+    explicit EQNOLEFILEHDR(sal_uInt32 nLenMTEF) : nCBHdr(0x1c),nVersion(0x20000),
+        nCf(0xc1c6),nCBObject(nLenMTEF),nReserved1(0),nReserved2(0x0014F690),
+        nReserved3(0x0014EBB4), nReserved4(0) {}
+
+    sal_uInt16   nCBHdr;     // length of header, sizeof(EQNOLEFILEHDR) = 28
+    sal_uInt32   nVersion;   // hiword = 2, loword = 0
+    sal_uInt16   nCf;        // clipboard format ("MathType EF")
+    sal_uInt32   nCBObject;  // length of MTEF data following this header
+    sal_uInt32   nReserved1; // not used
+    sal_uInt32   nReserved2; // not used
+    sal_uInt32   nReserved3; // not used
+    sal_uInt32   nReserved4; // not used
+
+    void Read(SvStream* pS)
+    {
+        pS->ReadUInt16( nCBHdr );
+        pS->ReadUInt32( nVersion );
+        pS->ReadUInt16( nCf );
+        pS->ReadUInt32( nCBObject );
+        pS->ReadUInt32( nReserved1 );
+        pS->ReadUInt32( nReserved2 );
+        pS->ReadUInt32( nReserved3 );
+        pS->ReadUInt32( nReserved4 );
+    }
+    void Write(SvStream* pS)
+    {
+        pS->WriteUInt16( nCBHdr );
+        pS->WriteUInt32( nVersion );
+        pS->WriteUInt16( nCf );
+        pS->WriteUInt32( nCBObject );
+        pS->WriteUInt32( nReserved1 );
+        pS->WriteUInt32( nReserved2 );
+        pS->WriteUInt32( nReserved3 );
+        pS->WriteUInt32( nReserved4 );
+    }
+};
+
+bool GetMathTypeVersion( SotStorage* pStor, sal_uInt8 &nVersion );
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/format.cxx b/starmath/source/format.cxx
new file mode 100644
index 000000000..a4bf960fd
--- /dev/null
+++ b/starmath/source/format.cxx
@@ -0,0 +1,153 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <format.hxx>
+
+
+SmFormat::SmFormat()
+:   aBaseSize(0, SmPtsTo100th_mm(12))
+{
+    eHorAlign       = SmHorAlign::Center;
+    nGreekCharStyle = 0;
+    bIsTextmode     = bScaleNormalBrackets = false;
+
+    vSize[SIZ_TEXT]     = 100;
+    vSize[SIZ_INDEX]    = 60;
+    vSize[SIZ_FUNCTION] =
+    vSize[SIZ_OPERATOR] = 100;
+    vSize[SIZ_LIMITS]   = 60;
+
+    vDist[DIS_HORIZONTAL]           = 10;
+    vDist[DIS_VERTICAL]             = 5;
+    vDist[DIS_ROOT]                 = 0;
+    vDist[DIS_SUPERSCRIPT]          =
+    vDist[DIS_SUBSCRIPT]            = 20;
+    vDist[DIS_NUMERATOR]            =
+    vDist[DIS_DENOMINATOR]          = 0;
+    vDist[DIS_FRACTION]             = 10;
+    vDist[DIS_STROKEWIDTH]          = 5;
+    vDist[DIS_UPPERLIMIT]           =
+    vDist[DIS_LOWERLIMIT]           = 0;
+    vDist[DIS_BRACKETSIZE]          =
+    vDist[DIS_BRACKETSPACE]         = 5;
+    vDist[DIS_MATRIXROW]            = 3;
+    vDist[DIS_MATRIXCOL]            = 30;
+    vDist[DIS_ORNAMENTSIZE]         =
+    vDist[DIS_ORNAMENTSPACE]        = 0;
+    vDist[DIS_OPERATORSIZE]         = 50;
+    vDist[DIS_OPERATORSPACE]        = 20;
+    vDist[DIS_LEFTSPACE]            =
+    vDist[DIS_RIGHTSPACE]           = 100;
+    vDist[DIS_TOPSPACE]             =
+    vDist[DIS_BOTTOMSPACE]          =
+    vDist[DIS_NORMALBRACKETSIZE]    = 0;
+
+    vFont[FNT_VARIABLE] =
+    vFont[FNT_FUNCTION] =
+    vFont[FNT_NUMBER]   =
+    vFont[FNT_TEXT]     =
+    vFont[FNT_SERIF]    = SmFace(FNTNAME_TIMES, aBaseSize);
+    vFont[FNT_SANS]     = SmFace(FNTNAME_HELV,  aBaseSize);
+    vFont[FNT_FIXED]    = SmFace(FNTNAME_COUR,  aBaseSize);
+    vFont[FNT_MATH]     = SmFace(FNTNAME_MATH,  aBaseSize);
+
+    vFont[FNT_MATH].SetCharSet( RTL_TEXTENCODING_UNICODE );
+
+    vFont[FNT_VARIABLE].SetItalic(ITALIC_NORMAL);
+    vFont[FNT_FUNCTION].SetItalic(ITALIC_NONE);
+    vFont[FNT_NUMBER]  .SetItalic(ITALIC_NONE);
+    vFont[FNT_TEXT]    .SetItalic(ITALIC_NONE);
+    vFont[FNT_SERIF]   .SetItalic(ITALIC_NONE);
+    vFont[FNT_SANS]    .SetItalic(ITALIC_NONE);
+    vFont[FNT_FIXED]   .SetItalic(ITALIC_NONE);
+
+    for ( sal_uInt16 i = FNT_BEGIN;  i <= FNT_END;  i++ )
+    {
+        SmFace &rFace = vFont[i];
+        rFace.SetTransparent( true );
+        rFace.SetAlignment( ALIGN_BASELINE );
+        rFace.SetColor( COL_AUTO );
+        bDefaultFont[i] = false;
+    }
+}
+
+
+void SmFormat::SetFont(sal_uInt16 nIdent, const SmFace &rFont, bool bDefault )
+{
+    vFont[nIdent] = rFont;
+    vFont[nIdent].SetTransparent( true );
+    vFont[nIdent].SetAlignment( ALIGN_BASELINE );
+
+    bDefaultFont[nIdent] = bDefault;
+}
+
+SmFormat & SmFormat::operator = (const SmFormat &rFormat)
+{
+    SetBaseSize(rFormat.GetBaseSize());
+    SetHorAlign(rFormat.GetHorAlign());
+    SetTextmode(rFormat.IsTextmode());
+    SetGreekCharStyle(rFormat.GetGreekCharStyle());
+    SetScaleNormalBrackets(rFormat.IsScaleNormalBrackets());
+
+    sal_uInt16  i;
+    for (i = FNT_BEGIN;  i <= FNT_END;  i++)
+    {
+        SetFont(i, rFormat.GetFont(i));
+        SetDefaultFont(i, rFormat.IsDefaultFont(i));
+    }
+    for (i = SIZ_BEGIN;  i <= SIZ_END;  i++)
+        SetRelSize(i, rFormat.GetRelSize(i));
+    for (i = DIS_BEGIN;  i <= DIS_END;  i++)
+        SetDistance(i, rFormat.GetDistance(i));
+
+    return *this;
+}
+
+
+bool SmFormat::operator == (const SmFormat &rFormat) const
+{
+    bool bRes = aBaseSize == rFormat.aBaseSize  &&
+                eHorAlign == rFormat.eHorAlign  &&
+                nGreekCharStyle == rFormat.nGreekCharStyle &&
+                bIsTextmode == rFormat.bIsTextmode  &&
+                bScaleNormalBrackets  == rFormat.bScaleNormalBrackets;
+
+    sal_uInt16 i;
+    for (i = 0;  i <= SIZ_END && bRes;  ++i)
+    {
+        if (vSize[i] != rFormat.vSize[i])
+            bRes = false;
+    }
+    for (i = 0;  i <= DIS_END && bRes;  ++i)
+    {
+        if (vDist[i] != rFormat.vDist[i])
+            bRes = false;
+    }
+    for (i = 0;  i <= FNT_END && bRes;  ++i)
+    {
+        if (vFont[i] != rFormat.vFont[i]  ||
+            bDefaultFont[i] != rFormat.bDefaultFont[i])
+            bRes = false;
+    }
+
+    return bRes;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/mathmlattr.cxx b/starmath/source/mathmlattr.cxx
new file mode 100644
index 000000000..5e3f09df9
--- /dev/null
+++ b/starmath/source/mathmlattr.cxx
@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "mathmlattr.hxx"
+
+#include <unordered_map>
+
+static sal_Int32 ParseMathMLUnsignedNumber(const OUString &rStr, Fraction& rUN)
+{
+    auto nLen = rStr.getLength();
+    sal_Int32 nDecimalPoint = -1;
+    sal_Int32 nIdx;
+    for (nIdx = 0; nIdx < nLen; nIdx++)
+    {
+        auto cD = rStr[nIdx];
+        if (cD == u'.')
+        {
+            if (nDecimalPoint >= 0)
+                return -1;
+            nDecimalPoint = nIdx;
+            continue;
+        }
+        if (cD < u'0' || u'9' < cD)
+            break;
+    }
+    if (nIdx == 0 || (nIdx == 1 && nDecimalPoint == 0))
+        return -1;
+
+    rUN = Fraction(rStr.copy(0, nIdx).toDouble());
+
+    return nIdx;
+}
+
+static sal_Int32 ParseMathMLNumber(const OUString &rStr, Fraction& rN)
+{
+    if (rStr.isEmpty())
+        return -1;
+    bool bNegative = (rStr[0] == '-');
+    sal_Int32 nOffset = bNegative ? 1 : 0;
+    auto nIdx = ParseMathMLUnsignedNumber(rStr.copy(nOffset), rN);
+    if (nIdx <= 0 || !rN.IsValid())
+        return -1;
+    if (bNegative)
+        rN *= -1;
+    return nOffset + nIdx;
+}
+
+sal_Int32 ParseMathMLAttributeLengthValue(const OUString &rStr, MathMLAttributeLengthValue& rV)
+{
+    auto nIdx = ParseMathMLNumber(rStr, rV.aNumber);
+    if (nIdx <= 0)
+        return -1;
+    OUString sRest = rStr.copy(nIdx);
+    if (sRest.isEmpty())
+    {
+        rV.eUnit = MathMLLengthUnit::None;
+        return nIdx;
+    }
+    if (sRest.startsWith("em"))
+    {
+        rV.eUnit = MathMLLengthUnit::Em;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("ex"))
+    {
+        rV.eUnit = MathMLLengthUnit::Ex;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("px"))
+    {
+        rV.eUnit = MathMLLengthUnit::Px;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("in"))
+    {
+        rV.eUnit = MathMLLengthUnit::In;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("cm"))
+    {
+        rV.eUnit = MathMLLengthUnit::Cm;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("mm"))
+    {
+        rV.eUnit = MathMLLengthUnit::Mm;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("pt"))
+    {
+        rV.eUnit = MathMLLengthUnit::Pt;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("pc"))
+    {
+        rV.eUnit = MathMLLengthUnit::Pc;
+        return nIdx + 2;
+    }
+    if (sRest[0] == u'%')
+    {
+        rV.eUnit = MathMLLengthUnit::Percent;
+        return nIdx + 2;
+    }
+    return nIdx;
+}
+
+bool GetMathMLMathvariantValue(const OUString &rStr, MathMLMathvariantValue& rV)
+{
+    static const std::unordered_map<OUString, MathMLMathvariantValue> aMap{
+        {"normal", MathMLMathvariantValue::Normal},
+        {"bold", MathMLMathvariantValue::Bold},
+        {"italic", MathMLMathvariantValue::Italic},
+        {"bold-italic", MathMLMathvariantValue::BoldItalic},
+        {"double-struck", MathMLMathvariantValue::DoubleStruck},
+        {"bold-fraktur", MathMLMathvariantValue::BoldFraktur},
+        {"script", MathMLMathvariantValue::Script},
+        {"bold-script", MathMLMathvariantValue::BoldScript},
+        {"fraktur", MathMLMathvariantValue::Fraktur},
+        {"sans-serif", MathMLMathvariantValue::SansSerif},
+        {"bold-sans-serif", MathMLMathvariantValue::BoldSansSerif},
+        {"sans-serif-italic", MathMLMathvariantValue::SansSerifItalic},
+        {"sans-serif-bold-italic", MathMLMathvariantValue::SansSerifBoldItalic},
+        {"monospace", MathMLMathvariantValue::Monospace},
+        {"initial", MathMLMathvariantValue::Initial},
+        {"tailed", MathMLMathvariantValue::Tailed},
+        {"looped", MathMLMathvariantValue::Looped},
+        {"stretched", MathMLMathvariantValue::Stretched}
+    };
+
+    auto it = aMap.find(rStr);
+    if (it != aMap.end())
+    {
+        rV = it->second;
+        return true;
+    }
+    return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/source/mathmlattr.hxx b/starmath/source/mathmlattr.hxx
new file mode 100644
index 000000000..232e080e6
--- /dev/null
+++ b/starmath/source/mathmlattr.hxx
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_MATHMLATTR_HXX
+#define INCLUDED_STARMATH_SOURCE_MATHMLATTR_HXX
+
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <tools/fract.hxx>
+
+// MathML 3: 2.1.5.1 Syntax notation used in the MathML specification
+// <https://www.w3.org/TR/MathML/chapter2.html#id.2.1.5.1>
+// MathML 2: 2.4.4.2 Attributes with units
+// <https://www.w3.org/TR/MathML2/chapter2.html#fund.attval>
+// MathML 3: 2.1.5.2 Length Valued Attributes
+// <https://www.w3.org/TR/MathML/chapter2.html#fund.units>
+
+enum class MathMLLengthUnit {
+    None,
+    Em,
+    Ex,
+    Px,
+    In,
+    Cm,
+    Mm,
+    Pt,
+    Pc,
+    Percent
+};
+
+struct MathMLAttributeLengthValue
+{
+    Fraction aNumber;
+    MathMLLengthUnit eUnit;
+    MathMLAttributeLengthValue()
+        : eUnit(MathMLLengthUnit::None)
+    {
+    }
+};
+
+sal_Int32 ParseMathMLAttributeLengthValue(const OUString &rStr, MathMLAttributeLengthValue& rV);
+
+
+// MathML 3: 3.2.2 Mathematics style attributes common to token elements
+// <https://www.w3.org/TR/MathML3/chapter3.html#presm.commatt>
+
+enum class MathMLMathvariantValue {
+    Normal,
+    Bold,
+    Italic,
+    BoldItalic,
+    DoubleStruck,
+    BoldFraktur,
+    Script,
+    BoldScript,
+    Fraktur,
+    SansSerif,
+    BoldSansSerif,
+    SansSerifItalic,
+    SansSerifBoldItalic,
+    Monospace,
+    Initial,
+    Tailed,
+    Looped,
+    Stretched
+};
+
+bool GetMathMLMathvariantValue(const OUString &rStr, MathMLMathvariantValue& rV);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/starmath/source/mathmlexport.cxx b/starmath/source/mathmlexport.cxx
new file mode 100644
index 000000000..c619f22f4
--- /dev/null
+++ b/starmath/source/mathmlexport.cxx
@@ -0,0 +1,1526 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/*
+ Warning: The SvXMLElementExport helper class creates the beginning and
+ closing tags of xml elements in its constructor and destructor, so there's
+ hidden stuff going on, on occasion the ordering of these classes declarations
+ may be significant
+*/
+
+#include <com/sun/star/xml/sax/Writer.hpp>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/embed/ElementModes.hpp>
+#include <com/sun/star/util/MeasureUnit.hpp>
+#include <com/sun/star/task/XStatusIndicator.hpp>
+#include <com/sun/star/uno/Any.h>
+
+#include <rtl/math.hxx>
+#include <sfx2/frame.hxx>
+#include <sfx2/docfile.hxx>
+#include <sfx2/sfxsids.hrc>
+#include <osl/diagnose.h>
+#include <unotools/saveopt.hxx>
+#include <sot/storage.hxx>
+#include <svl/itemset.hxx>
+#include <svl/stritem.hxx>
+#include <comphelper/fileformat.h>
+#include <comphelper/processfactory.hxx>
+#include <unotools/streamwrap.hxx>
+#include <sax/tools/converter.hxx>
+#include <xmloff/xmlnmspe.hxx>
+#include <xmloff/xmltoken.hxx>
+#include <xmloff/nmspmap.hxx>
+#include <xmloff/attrlist.hxx>
+#include <comphelper/genericpropertyset.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <comphelper/propertysetinfo.hxx>
+#include <tools/diagnose_ex.h>
+#include <sal/log.hxx>
+
+#include <memory>
+#include <stack>
+
+#include "mathmlexport.hxx"
+#include <strings.hrc>
+#include <smmod.hxx>
+#include <unomodel.hxx>
+#include <document.hxx>
+#include <utility.hxx>
+#include "cfgitem.hxx"
+
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::document;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star;
+using namespace ::xmloff::token;
+
+namespace {
+
+bool IsInPrivateUseArea( sal_Unicode cChar ) { return 0xE000 <= cChar  &&  cChar <= 0xF8FF; }
+
+sal_Unicode ConvertMathToMathML( sal_Unicode cChar )
+{
+    sal_Unicode cRes = cChar;
+    if (IsInPrivateUseArea( cChar ))
+    {
+        SAL_WARN("starmath", "Error: private use area characters should no longer be in use!" );
+        cRes = u'@'; // just some character that should easily be notice as odd in the context
+    }
+    return cRes;
+}
+
+}
+
+bool SmXMLExportWrapper::Export(SfxMedium &rMedium)
+{
+    bool bRet=true;
+    uno::Reference<uno::XComponentContext> xContext(comphelper::getProcessComponentContext());
+
+    //Get model
+    uno::Reference< lang::XComponent > xModelComp = xModel;
+
+    bool bEmbedded = false;
+    SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+
+    SmDocShell *pDocShell = pModel ?
+            static_cast<SmDocShell*>(pModel->GetObjectShell()) : nullptr;
+    if ( pDocShell &&
+        SfxObjectCreateMode::EMBEDDED == pDocShell->GetCreateMode() )
+        bEmbedded = true;
+
+    uno::Reference<task::XStatusIndicator> xStatusIndicator;
+    if (!bEmbedded)
+    {
+        if (pDocShell /*&& pDocShell->GetMedium()*/)
+        {
+            OSL_ENSURE( pDocShell->GetMedium() == &rMedium,
+                    "different SfxMedium found" );
+
+            SfxItemSet* pSet = rMedium.GetItemSet();
+            if (pSet)
+            {
+                const SfxUnoAnyItem* pItem = static_cast<const SfxUnoAnyItem*>(
+                    pSet->GetItem(SID_PROGRESS_STATUSBAR_CONTROL) );
+                if (pItem)
+                    pItem->GetValue() >>= xStatusIndicator;
+            }
+        }
+
+        // set progress range and start status indicator
+        if (xStatusIndicator.is())
+        {
+            sal_Int32 nProgressRange = bFlat ? 1 : 3;
+            xStatusIndicator->start(SmResId(STR_STATSTR_WRITING),
+                nProgressRange);
+        }
+    }
+
+
+    // create XPropertySet with three properties for status indicator
+    comphelper::PropertyMapEntry aInfoMap[] =
+    {
+        { OUString("UsePrettyPrinting"), 0,
+              cppu::UnoType<bool>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0},
+        { OUString("BaseURI"), 0,
+              ::cppu::UnoType<OUString>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString("StreamRelPath"), 0,
+              ::cppu::UnoType<OUString>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString("StreamName"), 0,
+              ::cppu::UnoType<OUString>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString(), 0, css::uno::Type(), 0, 0 }
+    };
+    uno::Reference< beans::XPropertySet > xInfoSet(
+                comphelper::GenericPropertySet_CreateInstance(
+                            new comphelper::PropertySetInfo( aInfoMap ) ) );
+
+    SvtSaveOptions aSaveOpt;
+    bool bUsePrettyPrinting( bFlat || aSaveOpt.IsPrettyPrinting() );
+    xInfoSet->setPropertyValue( "UsePrettyPrinting", Any(bUsePrettyPrinting) );
+
+    // Set base URI
+    OUString sPropName( "BaseURI" );
+    xInfoSet->setPropertyValue( sPropName, makeAny( rMedium.GetBaseURL( true ) ) );
+
+    sal_Int32 nSteps=0;
+    if (xStatusIndicator.is())
+            xStatusIndicator->setValue(nSteps++);
+    if (!bFlat) //Storage (Package) of Stream
+    {
+        uno::Reference < embed::XStorage > xStg = rMedium.GetOutputStorage();
+        bool bOASIS = ( SotStorage::GetVersion( xStg ) > SOFFICE_FILEFORMAT_60 );
+
+        // TODO/LATER: handle the case of embedded links gracefully
+        if ( bEmbedded ) //&& !pStg->IsRoot() )
+        {
+            OUString aName;
+            if ( rMedium.GetItemSet() )
+            {
+                const SfxStringItem* pDocHierarchItem = static_cast<const SfxStringItem*>(
+                    rMedium.GetItemSet()->GetItem(SID_DOC_HIERARCHICALNAME) );
+                if ( pDocHierarchItem )
+                    aName = pDocHierarchItem->GetValue();
+            }
+
+            if ( !aName.isEmpty() )
+            {
+                sPropName = "StreamRelPath";
+                xInfoSet->setPropertyValue( sPropName, makeAny( aName ) );
+            }
+        }
+
+        if ( !bEmbedded )
+        {
+            if (xStatusIndicator.is())
+                xStatusIndicator->setValue(nSteps++);
+
+            bRet = WriteThroughComponent(
+                    xStg, xModelComp, "meta.xml", xContext, xInfoSet,
+                    (bOASIS ? "com.sun.star.comp.Math.XMLOasisMetaExporter"
+                            : "com.sun.star.comp.Math.XMLMetaExporter"));
+        }
+        if ( bRet )
+        {
+            if (xStatusIndicator.is())
+                xStatusIndicator->setValue(nSteps++);
+
+            bRet = WriteThroughComponent(
+                    xStg, xModelComp, "content.xml", xContext, xInfoSet,
+                    "com.sun.star.comp.Math.XMLContentExporter");
+        }
+
+        if ( bRet )
+        {
+            if (xStatusIndicator.is())
+                xStatusIndicator->setValue(nSteps++);
+
+            bRet = WriteThroughComponent(
+                    xStg, xModelComp, "settings.xml", xContext, xInfoSet,
+                    (bOASIS ? "com.sun.star.comp.Math.XMLOasisSettingsExporter"
+                            : "com.sun.star.comp.Math.XMLSettingsExporter") );
+        }
+    }
+    else
+    {
+        SvStream *pStream = rMedium.GetOutStream();
+        uno::Reference<io::XOutputStream> xOut(
+            new utl::OOutputStreamWrapper(*pStream) );
+
+        if (xStatusIndicator.is())
+            xStatusIndicator->setValue(nSteps++);
+
+        bRet = WriteThroughComponent(
+            xOut, xModelComp, xContext, xInfoSet,
+            "com.sun.star.comp.Math.XMLContentExporter");
+    }
+
+    if (xStatusIndicator.is())
+        xStatusIndicator->end();
+
+    return bRet;
+}
+
+
+/// export through an XML exporter component (output stream version)
+bool SmXMLExportWrapper::WriteThroughComponent(
+    const Reference<io::XOutputStream>& xOutputStream,
+    const Reference<XComponent>& xComponent,
+    Reference<uno::XComponentContext> const & rxContext,
+    Reference<beans::XPropertySet> const & rPropSet,
+    const char* pComponentName )
+{
+    OSL_ENSURE(xOutputStream.is(), "I really need an output stream!");
+    OSL_ENSURE(xComponent.is(), "Need component!");
+    OSL_ENSURE(nullptr != pComponentName, "Need component name!");
+
+    // get component
+    Reference< xml::sax::XWriter > xSaxWriter = xml::sax::Writer::create(rxContext );
+
+    // connect XML writer to output stream
+    xSaxWriter->setOutputStream( xOutputStream );
+
+    // prepare arguments (prepend doc handler to given arguments)
+    Sequence<Any> aArgs( 2 );
+    aArgs[0] <<= xSaxWriter;
+    aArgs[1] <<= rPropSet;
+
+    // get filter component
+    Reference< document::XExporter > xExporter(
+        rxContext->getServiceManager()->createInstanceWithArgumentsAndContext(OUString::createFromAscii(pComponentName), aArgs, rxContext),
+        UNO_QUERY);
+    OSL_ENSURE( xExporter.is(),
+            "can't instantiate export filter component" );
+    if ( !xExporter.is() )
+        return false;
+
+
+    // connect model and filter
+    xExporter->setSourceDocument( xComponent );
+
+    // filter!
+    Reference < XFilter > xFilter( xExporter, UNO_QUERY );
+    uno::Sequence< PropertyValue > aProps(0);
+    xFilter->filter( aProps );
+
+    auto pFilter = comphelper::getUnoTunnelImplementation<SmXMLExport>(xFilter);
+    return pFilter == nullptr || pFilter->GetSuccess();
+}
+
+
+/// export through an XML exporter component (storage version)
+bool SmXMLExportWrapper::WriteThroughComponent(
+    const Reference < embed::XStorage >& xStorage,
+    const Reference<XComponent>& xComponent,
+    const char* pStreamName,
+    Reference<uno::XComponentContext> const & rxContext,
+    Reference<beans::XPropertySet> const & rPropSet,
+    const char* pComponentName
+    )
+{
+    OSL_ENSURE(xStorage.is(), "Need storage!");
+    OSL_ENSURE(nullptr != pStreamName, "Need stream name!");
+
+    // open stream
+    Reference < io::XStream > xStream;
+    OUString sStreamName = OUString::createFromAscii(pStreamName);
+    try
+    {
+        xStream = xStorage->openStreamElement( sStreamName,
+            embed::ElementModes::READWRITE | embed::ElementModes::TRUNCATE );
+    }
+    catch ( const uno::Exception& )
+    {
+        DBG_UNHANDLED_EXCEPTION("starmath", "Can't create output stream in package" );
+        return false;
+    }
+
+    uno::Reference < beans::XPropertySet > xSet( xStream, uno::UNO_QUERY );
+    xSet->setPropertyValue( "MediaType", Any(OUString( "text/xml" )) );
+
+    // all streams must be encrypted in encrypted document
+    xSet->setPropertyValue( "UseCommonStoragePasswordEncryption", Any(true) );
+
+    // set Base URL
+    if ( rPropSet.is() )
+    {
+        rPropSet->setPropertyValue( "StreamName", makeAny( sStreamName ) );
+    }
+
+    // write the stuff
+    bool bRet = WriteThroughComponent( xStream->getOutputStream(), xComponent, rxContext,
+        rPropSet, pComponentName );
+
+    return bRet;
+}
+
+SmXMLExport::SmXMLExport(
+    const css::uno::Reference< css::uno::XComponentContext >& rContext,
+    OUString const & implementationName, SvXMLExportFlags nExportFlags)
+    : SvXMLExport(util::MeasureUnit::INCH, rContext, implementationName, XML_MATH,
+                  nExportFlags)
+    , pTree(nullptr)
+    , bSuccess(false)
+{
+}
+
+sal_Int64 SAL_CALL SmXMLExport::getSomething(
+    const uno::Sequence< sal_Int8 >& rId )
+{
+    if ( isUnoTunnelId<SmXMLExport>(rId) )
+        return sal::static_int_cast< sal_Int64 >(reinterpret_cast< sal_uIntPtr >(this));
+
+    return SvXMLExport::getSomething( rId );
+}
+
+namespace
+{
+    class theSmXMLExportUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theSmXMLExportUnoTunnelId> {};
+}
+
+const uno::Sequence< sal_Int8 > & SmXMLExport::getUnoTunnelId() throw()
+{
+    return theSmXMLExportUnoTunnelId::get().getSeq();
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+Math_XMLExporter_get_implementation(css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SmXMLExport(context, "com.sun.star.comp.Math.XMLExporter", SvXMLExportFlags::OASIS|SvXMLExportFlags::ALL));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+Math_XMLMetaExporter_get_implementation(css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SmXMLExport(context, "com.sun.star.comp.Math.XMLMetaExporter", SvXMLExportFlags::META));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+Math_XMLOasisMetaExporter_get_implementation(css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SmXMLExport(context, "com.sun.star.comp.Math.XMLOasisMetaExporter", SvXMLExportFlags::OASIS|SvXMLExportFlags::META));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+Math_XMLSettingsExporter_get_implementation(css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SmXMLExport(context, "com.sun.star.comp.Math.XMLSettingsExporter", SvXMLExportFlags::SETTINGS));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+Math_XMLOasisSettingsExporter_get_implementation(css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SmXMLExport(context, "com.sun.star.comp.Math.XMLOasisSettingsExporter", SvXMLExportFlags::OASIS|SvXMLExportFlags::SETTINGS));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+Math_XMLContentExporter_get_implementation(css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SmXMLExport(context, "com.sun.star.comp.Math.XMLContentExporter", SvXMLExportFlags::OASIS|SvXMLExportFlags::CONTENT));
+}
+
+ErrCode SmXMLExport::exportDoc(enum XMLTokenEnum eClass)
+{
+    if ( !(getExportFlags() & SvXMLExportFlags::CONTENT) )
+    {
+        SvXMLExport::exportDoc( eClass );
+    }
+    else
+    {
+        uno::Reference <frame::XModel> xModel = GetModel();
+        SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+
+        if (pModel)
+        {
+            SmDocShell *pDocShell =
+                static_cast<SmDocShell*>(pModel->GetObjectShell());
+            pTree = pDocShell->GetFormulaTree();
+            aText = pDocShell->GetText();
+        }
+
+        GetDocHandler()->startDocument();
+
+        addChaffWhenEncryptedStorage();
+
+        /*Add xmlns line*/
+        SvXMLAttributeList &rList = GetAttrList();
+
+        // make use of a default namespace
+        ResetNamespaceMap();    // Math doesn't need namespaces from xmloff, since it now uses default namespaces (because that is common with current MathML usage in the web)
+        GetNamespaceMap_().Add( OUString(), GetXMLToken(XML_N_MATH), XML_NAMESPACE_MATH );
+
+        rList.AddAttribute(GetNamespaceMap().GetAttrNameByKey(XML_NAMESPACE_MATH),
+                GetNamespaceMap().GetNameByKey( XML_NAMESPACE_MATH));
+
+        //I think we need something like ImplExportEntities();
+        ExportContent_();
+        GetDocHandler()->endDocument();
+    }
+
+    bSuccess=true;
+    return ERRCODE_NONE;
+}
+
+void SmXMLExport::ExportContent_()
+{
+    uno::Reference <frame::XModel> xModel = GetModel();
+    SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+    SmDocShell *pDocShell = pModel ?
+        static_cast<SmDocShell*>(pModel->GetObjectShell()) : nullptr;
+    OSL_ENSURE( pDocShell, "doc shell missing" );
+
+    if (pDocShell && !pDocShell->GetFormat().IsTextmode())
+    {
+        // If the Math equation is not in text mode, we attach a display="block"
+        // attribute on the <math> root. We don't do anything if it is in
+        // text mode, the default display="inline" value will be used.
+        AddAttribute(XML_NAMESPACE_MATH, XML_DISPLAY, XML_BLOCK);
+    }
+    SvXMLElementExport aEquation(*this, XML_NAMESPACE_MATH, XML_MATH, true, true);
+    std::unique_ptr<SvXMLElementExport> pSemantics;
+
+    if (!aText.isEmpty())
+    {
+        pSemantics.reset( new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+            XML_SEMANTICS, true, true) );
+    }
+
+    ExportNodes(pTree, 0);
+
+    if (aText.isEmpty())
+        return;
+
+    // Convert symbol names
+    if (pDocShell)
+    {
+        SmParser &rParser = pDocShell->GetParser();
+        bool bVal = rParser.IsExportSymbolNames();
+        rParser.SetExportSymbolNames( true );
+        auto pTmpTree = rParser.Parse( aText );
+        aText = rParser.GetText();
+        pTmpTree.reset();
+        rParser.SetExportSymbolNames( bVal );
+    }
+
+    AddAttribute(XML_NAMESPACE_MATH, XML_ENCODING,
+        OUString("StarMath 5.0"));
+    SvXMLElementExport aAnnotation(*this, XML_NAMESPACE_MATH,
+        XML_ANNOTATION, true, false);
+    GetDocHandler()->characters( aText );
+}
+
+void SmXMLExport::GetViewSettings( Sequence < PropertyValue >& aProps)
+{
+    uno::Reference <frame::XModel> xModel = GetModel();
+    if ( !xModel.is() )
+        return;
+
+    SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+
+    if ( !pModel )
+        return;
+
+    SmDocShell *pDocShell =
+        static_cast<SmDocShell*>(pModel->GetObjectShell());
+    if ( !pDocShell )
+        return;
+
+    aProps.realloc( 4 );
+    PropertyValue *pValue = aProps.getArray();
+    sal_Int32 nIndex = 0;
+
+    tools::Rectangle aRect( pDocShell->GetVisArea() );
+
+    pValue[nIndex].Name = "ViewAreaTop";
+    pValue[nIndex++].Value <<= aRect.Top();
+
+    pValue[nIndex].Name = "ViewAreaLeft";
+    pValue[nIndex++].Value <<= aRect.Left();
+
+    pValue[nIndex].Name = "ViewAreaWidth";
+    pValue[nIndex++].Value <<= aRect.GetWidth();
+
+    pValue[nIndex].Name = "ViewAreaHeight";
+    pValue[nIndex++].Value <<= aRect.GetHeight();
+}
+
+void SmXMLExport::GetConfigurationSettings( Sequence < PropertyValue > & rProps)
+{
+    Reference < XPropertySet > xProps ( GetModel(), UNO_QUERY );
+    if ( !xProps.is() )
+        return;
+
+    Reference< XPropertySetInfo > xPropertySetInfo = xProps->getPropertySetInfo();
+    if (!xPropertySetInfo.is())
+        return;
+
+    Sequence< Property > aProps = xPropertySetInfo->getProperties();
+    const sal_Int32 nCount = aProps.getLength();
+    if (!nCount)
+        return;
+
+    rProps.realloc(nCount);
+    SmMathConfig* pConfig = SM_MOD()->GetConfig();
+    const bool bUsedSymbolsOnly = pConfig && pConfig->IsSaveOnlyUsedSymbols();
+
+    std::transform(aProps.begin(), aProps.end(), rProps.begin(),
+                   [bUsedSymbolsOnly, &xProps](Property& prop) {
+                       PropertyValue aRet;
+                       if (prop.Name != "Formula" && prop.Name != "BasicLibraries"
+                           && prop.Name != "DialogLibraries"
+                           && prop.Name != "RuntimeUID")
+                       {
+                           aRet.Name = prop.Name;
+                           OUString aActualName(prop.Name);
+                           // handle 'save used symbols only'
+                           if (bUsedSymbolsOnly && prop.Name == "Symbols")
+                               aActualName = "UserDefinedSymbolsInUse";
+                           aRet.Value = xProps->getPropertyValue(aActualName);
+                       }
+                       return aRet;
+                   });
+}
+
+void SmXMLExport::ExportLine(const SmNode *pNode, int nLevel)
+{
+    ExportExpression(pNode, nLevel);
+}
+
+void SmXMLExport::ExportBinaryHorizontal(const SmNode *pNode, int nLevel)
+{
+    TG nGroup = pNode->GetToken().nGroup;
+
+    SvXMLElementExport aRow(*this, XML_NAMESPACE_MATH, XML_MROW, true, true);
+
+    // Unfold the binary tree structure as long as the nodes are SmBinHorNode
+    // with the same nGroup. This will reduce the number of nested <mrow>
+    // elements e.g. we only need three <mrow> levels to export
+
+    // "a*b*c*d+e*f*g*h+i*j*k*l = a*b*c*d+e*f*g*h+i*j*k*l =
+    //  a*b*c*d+e*f*g*h+i*j*k*l = a*b*c*d+e*f*g*h+i*j*k*l"
+
+    // See https://www.libreoffice.org/bugzilla/show_bug.cgi?id=66081
+    ::std::stack< const SmNode* > s;
+    s.push(pNode);
+    while (!s.empty())
+    {
+        const SmNode *node = s.top();
+        s.pop();
+        if (node->GetType() != SmNodeType::BinHor || node->GetToken().nGroup != nGroup)
+        {
+            ExportNodes(node, nLevel+1);
+            continue;
+        }
+        const SmBinHorNode* binNode = static_cast<const SmBinHorNode*>(node);
+        s.push(binNode->RightOperand());
+        s.push(binNode->Symbol());
+        s.push(binNode->LeftOperand());
+    }
+}
+
+void SmXMLExport::ExportUnaryHorizontal(const SmNode *pNode, int nLevel)
+{
+    ExportExpression(pNode, nLevel);
+}
+
+void SmXMLExport::ExportExpression(const SmNode *pNode, int nLevel,
+                                   bool bNoMrowContainer /*=false*/)
+{
+    std::unique_ptr<SvXMLElementExport> pRow;
+    size_t nSize = pNode->GetNumSubNodes();
+
+    // #i115443: nodes of type expression always need to be grouped with mrow statement
+    if (!bNoMrowContainer &&
+        (nSize > 1 || pNode->GetType() == SmNodeType::Expression))
+        pRow.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MROW, true, true));
+
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (const SmNode *pTemp = pNode->GetSubNode(i))
+            ExportNodes(pTemp, nLevel+1);
+    }
+}
+
+void SmXMLExport::ExportBinaryVertical(const SmNode *pNode, int nLevel)
+{
+    assert(pNode->GetNumSubNodes() == 3);
+    const SmNode *pNum = pNode->GetSubNode(0);
+    const SmNode *pDenom = pNode->GetSubNode(2);
+    if (pNum->GetType() == SmNodeType::Align && pNum->GetToken().eType != TALIGNC)
+    {
+        // A left or right alignment is specified on the numerator:
+        // attach the corresponding numalign attribute.
+        AddAttribute(XML_NAMESPACE_MATH, XML_NUMALIGN,
+            pNum->GetToken().eType == TALIGNL ? XML_LEFT : XML_RIGHT);
+    }
+    if (pDenom->GetType() == SmNodeType::Align && pDenom->GetToken().eType != TALIGNC)
+    {
+        // A left or right alignment is specified on the denominator:
+        // attach the corresponding denomalign attribute.
+        AddAttribute(XML_NAMESPACE_MATH, XML_DENOMALIGN,
+            pDenom->GetToken().eType == TALIGNL ? XML_LEFT : XML_RIGHT);
+    }
+    SvXMLElementExport aFraction(*this, XML_NAMESPACE_MATH, XML_MFRAC, true, true);
+    ExportNodes(pNum, nLevel);
+    ExportNodes(pDenom, nLevel);
+}
+
+void SmXMLExport::ExportBinaryDiagonal(const SmNode *pNode, int nLevel)
+{
+    assert(pNode->GetNumSubNodes() == 3);
+
+    if (pNode->GetToken().eType == TWIDESLASH)
+    {
+        // wideslash
+        // export the node as <mfrac bevelled="true">
+        AddAttribute(XML_NAMESPACE_MATH, XML_BEVELLED, XML_TRUE);
+        SvXMLElementExport aFraction(*this, XML_NAMESPACE_MATH, XML_MFRAC,
+            true, true);
+        ExportNodes(pNode->GetSubNode(0), nLevel);
+        ExportNodes(pNode->GetSubNode(1), nLevel);
+    }
+    else
+    {
+        // widebslash
+        // We can not use <mfrac> to a backslash, so just use <mo>\</mo>
+        SvXMLElementExport aRow(*this, XML_NAMESPACE_MATH, XML_MROW, true, true);
+
+        ExportNodes(pNode->GetSubNode(0), nLevel);
+
+        { // Scoping for <mo> creation
+        SvXMLElementExport aMo(*this, XML_NAMESPACE_MATH, XML_MO,
+            true, true);
+        sal_Unicode const nArse[2] = {MS_BACKSLASH,0x00};
+        GetDocHandler()->characters(nArse);
+        }
+
+        ExportNodes(pNode->GetSubNode(1), nLevel);
+    }
+}
+
+void SmXMLExport::ExportTable(const SmNode *pNode, int nLevel)
+{
+    std::unique_ptr<SvXMLElementExport> pTable;
+
+    size_t nSize = pNode->GetNumSubNodes();
+
+    //If the list ends in newline then the last entry has
+    //no subnodes, the newline is superfluous so we just drop
+    //the last node, inclusion would create a bad MathML
+    //table
+    if (nSize >= 1)
+    {
+        const SmNode *pLine = pNode->GetSubNode(nSize-1);
+        if (pLine->GetType() == SmNodeType::Line && pLine->GetNumSubNodes() == 1 &&
+            pLine->GetSubNode(0) != nullptr &&
+            pLine->GetSubNode(0)->GetToken().eType == TNEWLINE)
+            --nSize;
+    }
+
+    // try to avoid creating a mtable element when the formula consists only
+    // of a single output line
+    if (nLevel || (nSize >1))
+        pTable.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MTABLE, true, true));
+
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (const SmNode *pTemp = pNode->GetSubNode(i))
+        {
+            std::unique_ptr<SvXMLElementExport> pRow;
+            std::unique_ptr<SvXMLElementExport> pCell;
+            if (pTable)
+            {
+                pRow.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MTR, true, true));
+                SmTokenType eAlign = TALIGNC;
+                if (pTemp->GetType() == SmNodeType::Align)
+                {
+                    // For Binom() and Stack() constructions, the SmNodeType::Align nodes
+                    // are direct children.
+                    // binom{alignl ...}{alignr ...} and
+                    // stack{alignl ... ## alignr ... ## ...}
+                    eAlign = pTemp->GetToken().eType;
+                }
+                else if (pTemp->GetType() == SmNodeType::Line &&
+                         pTemp->GetNumSubNodes() == 1 &&
+                         pTemp->GetSubNode(0) &&
+                         pTemp->GetSubNode(0)->GetType() == SmNodeType::Align)
+                {
+                    // For the Table() construction, the SmNodeType::Align node is a child
+                    // of an SmNodeType::Line node.
+                    // alignl ... newline alignr ... newline ...
+                    eAlign = pTemp->GetSubNode(0)->GetToken().eType;
+                }
+                if (eAlign != TALIGNC)
+                {
+                    // If a left or right alignment is specified on this line,
+                    // attach the corresponding columnalign attribute.
+                    AddAttribute(XML_NAMESPACE_MATH, XML_COLUMNALIGN,
+                        eAlign == TALIGNL ? XML_LEFT : XML_RIGHT);
+                }
+                pCell.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MTD, true, true));
+            }
+            ExportNodes(pTemp, nLevel+1);
+        }
+    }
+}
+
+void SmXMLExport::ExportMath(const SmNode *pNode)
+{
+    const SmTextNode *pTemp = static_cast<const SmTextNode *>(pNode);
+    std::unique_ptr<SvXMLElementExport> pMath;
+
+    if (pNode->GetType() == SmNodeType::Math || pNode->GetType() == SmNodeType::GlyphSpecial)
+    {
+        // Export SmNodeType::Math and SmNodeType::GlyphSpecial symbols as <mo> elements
+        pMath.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MO, true, false));
+    }
+    else if (pNode->GetType() == SmNodeType::Special)
+    {
+        bool bIsItalic = IsItalic(pNode->GetFont());
+        if (!bIsItalic)
+            AddAttribute(XML_NAMESPACE_MATH, XML_MATHVARIANT, XML_NORMAL);
+        pMath.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MI, true, false));
+    }
+    else
+    {
+        // Export SmNodeType::MathIdent and SmNodeType::Place symbols as <mi> elements:
+        // - These math symbols should not be drawn slanted. Hence we should
+        // attach a mathvariant="normal" attribute to single-char <mi> elements
+        // that are not mathematical alphanumeric symbol. For simplicity and to
+        // work around browser limitations, we always attach such an attribute.
+        // - The MathML specification suggests to use empty <mi> elements as
+        // placeholders but they won't be visible in most MathML rendering
+        // engines so let's use an empty square for SmNodeType::Place instead.
+        AddAttribute(XML_NAMESPACE_MATH, XML_MATHVARIANT, XML_NORMAL);
+        pMath.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MI, true, false));
+    }
+    sal_Unicode nArse[2];
+    nArse[0] = pTemp->GetText()[0];
+    sal_Unicode cTmp = ConvertMathToMathML( nArse[0] );
+    if (cTmp != 0)
+        nArse[0] = cTmp;
+    OSL_ENSURE(nArse[0] != 0xffff,"Non existent symbol");
+    nArse[1] = 0;
+    GetDocHandler()->characters(nArse);
+}
+
+void SmXMLExport::ExportText(const SmNode *pNode)
+{
+    std::unique_ptr<SvXMLElementExport> pText;
+    const SmTextNode *pTemp = static_cast<const SmTextNode *>(pNode);
+    switch (pNode->GetToken().eType)
+    {
+        default:
+        case TIDENT:
+        {
+            //Note that we change the fontstyle to italic for strings that
+            //are italic and longer than a single character.
+            bool bIsItalic = IsItalic( pTemp->GetFont() );
+            if ((pTemp->GetText().getLength() > 1) && bIsItalic)
+                AddAttribute(XML_NAMESPACE_MATH, XML_MATHVARIANT, XML_ITALIC);
+            else if ((pTemp->GetText().getLength() == 1) && !bIsItalic)
+                AddAttribute(XML_NAMESPACE_MATH, XML_MATHVARIANT, XML_NORMAL);
+            pText.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MI, true, false));
+            break;
+        }
+        case TNUMBER:
+            pText.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MN, true, false));
+            break;
+        case TTEXT:
+            pText.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MTEXT, true, false));
+            break;
+        }
+    GetDocHandler()->characters(pTemp->GetText());
+}
+
+void SmXMLExport::ExportBlank(const SmNode *pNode)
+{
+    const SmBlankNode *pTemp = static_cast<const SmBlankNode *>(pNode);
+    //!! exports an <mspace> element. Note that for example "~_~" is allowed in
+    //!! Math (so it has no sense at all) but must not result in an empty
+    //!! <msub> tag in MathML !!
+
+    if (pTemp->GetBlankNum() != 0)
+    {
+        // Attach a width attribute. We choose the (somewhat arbitrary) values
+        // ".5em" for a small gap '`' and "2em" for a large gap '~'.
+        // (see SmBlankNode::IncreaseBy for how pTemp->mnNum is set).
+        OUStringBuffer sStrBuf;
+        ::sax::Converter::convertDouble(sStrBuf, pTemp->GetBlankNum() * .5);
+        sStrBuf.append("em");
+        AddAttribute(XML_NAMESPACE_MATH, XML_WIDTH, sStrBuf.getStr());
+    }
+
+    SvXMLElementExport aTextExport(*this, XML_NAMESPACE_MATH, XML_MSPACE,
+                                true, false);
+
+    GetDocHandler()->characters( OUString() );
+}
+
+void SmXMLExport::ExportSubSupScript(const SmNode *pNode, int nLevel)
+{
+    const SmNode *pSub  = nullptr;
+    const SmNode *pSup  = nullptr;
+    const SmNode *pCSub = nullptr;
+    const SmNode *pCSup = nullptr;
+    const SmNode *pLSub = nullptr;
+    const SmNode *pLSup = nullptr;
+    std::unique_ptr<SvXMLElementExport> pThing2;
+
+    //if we have prescripts at all then we must use the tensor notation
+
+    //This is one of those excellent locations where scope is vital to
+    //arrange the construction and destruction of the element helper
+    //classes correctly
+    pLSub = pNode->GetSubNode(LSUB+1);
+    pLSup = pNode->GetSubNode(LSUP+1);
+    if (pLSub || pLSup)
+    {
+        SvXMLElementExport aMultiScripts(*this, XML_NAMESPACE_MATH,
+            XML_MMULTISCRIPTS, true, true);
+
+
+        if (nullptr != (pCSub = pNode->GetSubNode(CSUB+1))
+            && nullptr != (pCSup = pNode->GetSubNode(CSUP+1)))
+        {
+            pThing2.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MUNDEROVER, true, true));
+        }
+        else if (nullptr != (pCSub = pNode->GetSubNode(CSUB+1)))
+        {
+            pThing2.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MUNDER, true, true));
+        }
+        else if (nullptr != (pCSup = pNode->GetSubNode(CSUP+1)))
+        {
+            pThing2.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MOVER, true, true));
+        }
+
+        ExportNodes(pNode->GetSubNode(0), nLevel+1);    //Main Term
+
+        if (pCSub)
+            ExportNodes(pCSub, nLevel+1);
+        if (pCSup)
+            ExportNodes(pCSup, nLevel+1);
+        pThing2.reset();
+
+        pSub = pNode->GetSubNode(RSUB+1);
+        pSup = pNode->GetSubNode(RSUP+1);
+        if (pSub || pSup)
+        {
+            if (pSub)
+                ExportNodes(pSub, nLevel+1);
+            else
+            {
+                SvXMLElementExport aNone(*this, XML_NAMESPACE_MATH, XML_NONE, true, true);
+            }
+            if (pSup)
+                ExportNodes(pSup, nLevel+1);
+            else
+            {
+                SvXMLElementExport aNone(*this, XML_NAMESPACE_MATH, XML_NONE, true, true);
+            }
+        }
+
+        //Separator element between suffix and prefix sub/sup pairs
+        {
+            SvXMLElementExport aPrescripts(*this, XML_NAMESPACE_MATH,
+                XML_MPRESCRIPTS, true, true);
+        }
+
+        if (pLSub)
+            ExportNodes(pLSub, nLevel+1);
+        else
+        {
+            SvXMLElementExport aNone(*this, XML_NAMESPACE_MATH, XML_NONE,
+                true, true);
+
+        }
+        if (pLSup)
+            ExportNodes(pLSup, nLevel+1);
+        else
+        {
+            SvXMLElementExport aNone(*this, XML_NAMESPACE_MATH, XML_NONE,
+                true, true);
+
+        }
+    }
+    else
+    {
+        std::unique_ptr<SvXMLElementExport> pThing;
+        if (nullptr != (pSub = pNode->GetSubNode(RSUB+1)) &&
+            nullptr != (pSup = pNode->GetSubNode(RSUP+1)))
+        {
+            pThing.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MSUBSUP, true, true));
+        }
+        else if (nullptr != (pSub = pNode->GetSubNode(RSUB+1)))
+        {
+            pThing.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MSUB,
+                true, true));
+        }
+        else if (nullptr != (pSup = pNode->GetSubNode(RSUP+1)))
+        {
+            pThing.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MSUP,
+                true, true));
+        }
+
+        if (nullptr != (pCSub = pNode->GetSubNode(CSUB+1))
+            && nullptr != (pCSup=pNode->GetSubNode(CSUP+1)))
+        {
+            pThing2.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MUNDEROVER, true, true));
+        }
+        else if (nullptr != (pCSub = pNode->GetSubNode(CSUB+1)))
+        {
+            pThing2.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MUNDER, true, true));
+        }
+        else if (nullptr != (pCSup = pNode->GetSubNode(CSUP+1)))
+        {
+            pThing2.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+                XML_MOVER, true, true));
+        }
+        ExportNodes(pNode->GetSubNode(0), nLevel+1);    //Main Term
+
+        if (pCSub)
+            ExportNodes(pCSub, nLevel+1);
+        if (pCSup)
+            ExportNodes(pCSup, nLevel+1);
+        pThing2.reset();
+
+        if (pSub)
+            ExportNodes(pSub, nLevel+1);
+        if (pSup)
+            ExportNodes(pSup, nLevel+1);
+        pThing.reset();
+    }
+}
+
+void SmXMLExport::ExportBrace(const SmNode *pNode, int nLevel)
+{
+    const SmNode *pTemp;
+    const SmNode *pLeft=pNode->GetSubNode(0);
+    const SmNode *pRight=pNode->GetSubNode(2);
+
+    // This used to generate <mfenced> or <mrow>+<mo> elements according to
+    // the stretchiness of fences. The MathML recommendation defines an
+    // <mrow>+<mo> construction that is equivalent to the <mfenced> element:
+    // http://www.w3.org/TR/MathML3/chapter3.html#presm.mfenced
+    // To simplify our code and avoid issues with mfenced implementations in
+    // MathML rendering engines, we now always generate <mrow>+<mo> elements.
+    // See #fdo 66282.
+
+    // <mrow>
+    SvXMLElementExport aRow(*this, XML_NAMESPACE_MATH, XML_MROW,
+                                    true, true);
+
+    //   <mo fence="true"> opening-fence </mo>
+    if (pLeft && (pLeft->GetToken().eType != TNONE))
+    {
+        AddAttribute(XML_NAMESPACE_MATH, XML_FENCE, XML_TRUE);
+        if (pNode->GetScaleMode() == SmScaleMode::Height)
+            AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_TRUE);
+        else
+            AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_FALSE);
+        ExportNodes(pLeft, nLevel+1);
+    }
+
+    if (nullptr != (pTemp = pNode->GetSubNode(1)))
+    {
+        // <mrow>
+        SvXMLElementExport aRowExport(*this, XML_NAMESPACE_MATH, XML_MROW,
+            true, true);
+        ExportNodes(pTemp, nLevel+1);
+        // </mrow>
+    }
+
+    //   <mo fence="true"> closing-fence </mo>
+    if (pRight && (pRight->GetToken().eType != TNONE))
+    {
+        AddAttribute(XML_NAMESPACE_MATH, XML_FENCE, XML_TRUE);
+        if (pNode->GetScaleMode() == SmScaleMode::Height)
+            AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_TRUE);
+        else
+            AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_FALSE);
+        ExportNodes(pRight, nLevel+1);
+    }
+
+    // </mrow>
+}
+
+void SmXMLExport::ExportRoot(const SmNode *pNode, int nLevel)
+{
+    if (pNode->GetSubNode(0))
+    {
+        SvXMLElementExport aRoot(*this, XML_NAMESPACE_MATH, XML_MROOT, true,
+            true);
+        ExportNodes(pNode->GetSubNode(2), nLevel+1);
+        ExportNodes(pNode->GetSubNode(0), nLevel+1);
+    }
+    else
+    {
+        SvXMLElementExport aSqrt(*this, XML_NAMESPACE_MATH, XML_MSQRT, true,
+            true);
+        ExportNodes(pNode->GetSubNode(2), nLevel+1);
+    }
+}
+
+void SmXMLExport::ExportOperator(const SmNode *pNode, int nLevel)
+{
+    /*we need to either use content or font and size attributes
+     *here*/
+    SvXMLElementExport aRow(*this, XML_NAMESPACE_MATH, XML_MROW,
+        true, true);
+    ExportNodes(pNode->GetSubNode(0), nLevel+1);
+    ExportNodes(pNode->GetSubNode(1), nLevel+1);
+}
+
+void SmXMLExport::ExportAttributes(const SmNode *pNode, int nLevel)
+{
+    std::unique_ptr<SvXMLElementExport> pElement;
+
+    if (pNode->GetToken().eType == TUNDERLINE)
+    {
+        AddAttribute(XML_NAMESPACE_MATH, XML_ACCENTUNDER,
+            XML_TRUE);
+        pElement.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MUNDER,
+            true, true));
+    }
+    else if (pNode->GetToken().eType == TOVERSTRIKE)
+    {
+        // export as <menclose notation="horizontalstrike">
+        AddAttribute(XML_NAMESPACE_MATH, XML_NOTATION, XML_HORIZONTALSTRIKE);
+        pElement.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH,
+            XML_MENCLOSE, true, true));
+    }
+    else
+    {
+        AddAttribute(XML_NAMESPACE_MATH, XML_ACCENT,
+            XML_TRUE);
+        pElement.reset(new SvXMLElementExport(*this, XML_NAMESPACE_MATH, XML_MOVER,
+            true, true));
+    }
+
+    ExportNodes(pNode->GetSubNode(1), nLevel+1);
+    switch (pNode->GetToken().eType)
+    {
+        case TOVERLINE:
+            {
+            //proper entity support required
+            SvXMLElementExport aMath(*this, XML_NAMESPACE_MATH, XML_MO,
+                true, true);
+            sal_Unicode const nArse[2] = {0xAF,0x00};
+            GetDocHandler()->characters(nArse);
+            }
+            break;
+        case TUNDERLINE:
+            {
+            //proper entity support required
+            SvXMLElementExport aMath(*this, XML_NAMESPACE_MATH, XML_MO,
+                true, true);
+            sal_Unicode const nArse[2] = {0x0332,0x00};
+            GetDocHandler()->characters(nArse);
+            }
+            break;
+        case TOVERSTRIKE:
+            break;
+        case TWIDETILDE:
+        case TWIDEHAT:
+        case TWIDEVEC:
+        case TWIDEHARPOON:
+            {
+            // make these wide accents stretchy
+            AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_TRUE);
+            ExportNodes(pNode->GetSubNode(0), nLevel+1);
+            }
+            break;
+        default:
+            ExportNodes(pNode->GetSubNode(0), nLevel+1);
+            break;
+    }
+}
+
+static bool lcl_HasEffectOnMathvariant( const SmTokenType eType )
+{
+    return  eType == TBOLD || eType == TNBOLD ||
+            eType == TITALIC || eType == TNITALIC ||
+            eType == TSANS || eType == TSERIF || eType == TFIXED;
+}
+
+void SmXMLExport::ExportFont(const SmNode *pNode, int nLevel)
+{
+
+    // gather the mathvariant attribute relevant data from all
+    // successively following SmFontNodes...
+
+    int nBold   = -1;   // for the following variables: -1 = yet undefined; 0 = false; 1 = true;
+    int nItalic = -1;   // for the following variables: -1 = yet undefined; 0 = false; 1 = true;
+    int nSansSerifFixed   = -1;
+    SmTokenType eNodeType = TUNKNOWN;
+    for (;;)
+    {
+        eNodeType = pNode->GetToken().eType;
+        if (!lcl_HasEffectOnMathvariant(eNodeType))
+            break;
+        switch (eNodeType)
+        {
+            case TBOLD      : nBold   = 1; break;
+            case TNBOLD     : nBold   = 0; break;
+            case TITALIC    : nItalic = 1; break;
+            case TNITALIC   : nItalic = 0; break;
+            case TSANS      : nSansSerifFixed  = 0; break;
+            case TSERIF     : nSansSerifFixed  = 1; break;
+            case TFIXED     : nSansSerifFixed  = 2; break;
+            default:
+                SAL_WARN("starmath", "unexpected case");
+        }
+        // According to the parser every node that is to be evaluated here
+        // has a single non-zero subnode at index 1!! Thus we only need to check
+        // that single node for follow-up nodes that have an effect on the attribute.
+        if (pNode->GetNumSubNodes() > 1 && pNode->GetSubNode(1) &&
+            lcl_HasEffectOnMathvariant( pNode->GetSubNode(1)->GetToken().eType))
+        {
+            pNode = pNode->GetSubNode(1);
+        }
+        else
+            break;
+    }
+
+    switch (pNode->GetToken().eType)
+    {
+        case TPHANTOM:
+            // No attribute needed. An <mphantom> element will be used below.
+            break;
+        case TBLACK:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_BLACK);
+            break;
+        case TWHITE:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_WHITE);
+            break;
+        case TRED:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_RED);
+            break;
+        case TGREEN:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_GREEN);
+            break;
+        case TBLUE:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_BLUE);
+            break;
+        case TCYAN:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_AQUA);
+            break;
+        case TMAGENTA:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_FUCHSIA);
+            break;
+        case TYELLOW:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_YELLOW);
+            break;
+        case TSILVER:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_SILVER);
+            break;
+        case TGRAY:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_GRAY);
+            break;
+        case TMAROON:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_MAROON);
+            break;
+        case TOLIVE:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_OLIVE);
+            break;
+        case TLIME:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_LIME);
+            break;
+        case TAQUA:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_AQUA);
+            break;
+        case TTEAL:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_TEAL);
+            break;
+        case TNAVY:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_NAVY);
+            break;
+        case TFUCHSIA:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_FUCHSIA);
+            break;
+        case TPURPLE:
+            AddAttribute(XML_NAMESPACE_MATH, XML_COLOR, XML_PURPLE);
+            break;
+        case TSIZE:
+            {
+                const SmFontNode *pFontNode = static_cast<const SmFontNode *>(pNode);
+                const Fraction &aFrac = pFontNode->GetSizeParameter();
+
+                OUStringBuffer sStrBuf;
+                switch(pFontNode->GetSizeType())
+                {
+                    case FontSizeType::MULTIPLY:
+                        ::sax::Converter::convertDouble(sStrBuf,
+                            static_cast<double>(aFrac*Fraction(100.00)));
+                        sStrBuf.append('%');
+                        break;
+                    case FontSizeType::DIVIDE:
+                        ::sax::Converter::convertDouble(sStrBuf,
+                            static_cast<double>(Fraction(100.00)/aFrac));
+                        sStrBuf.append('%');
+                        break;
+                    case FontSizeType::ABSOLUT:
+                        ::sax::Converter::convertDouble(sStrBuf,
+                            static_cast<double>(aFrac));
+                        sStrBuf.append(
+                            GetXMLToken(XML_UNIT_PT));
+                        break;
+                    default:
+                        {
+                            //The problem here is that the wheels fall off because
+                            //font size is stored in 100th's of a mm not pts, and
+                            //rounding errors take their toll on the original
+                            //value specified in points.
+
+                            //Must fix StarMath to retain the original pt values
+                            Fraction aTemp = Sm100th_mmToPts(pFontNode->GetFont().GetFontSize().Height());
+
+                            if (pFontNode->GetSizeType() == FontSizeType::MINUS)
+                                aTemp-=aFrac;
+                            else
+                                aTemp+=aFrac;
+
+                            double mytest = static_cast<double>(aTemp);
+
+                            mytest = ::rtl::math::round(mytest,1);
+                            ::sax::Converter::convertDouble(sStrBuf,mytest);
+                            sStrBuf.append(GetXMLToken(XML_UNIT_PT));
+                        }
+                        break;
+                }
+
+                OUString sStr(sStrBuf.makeStringAndClear());
+                AddAttribute(XML_NAMESPACE_MATH, XML_MATHSIZE, sStr);
+            }
+            break;
+        case TBOLD:
+        case TITALIC:
+        case TNBOLD:
+        case TNITALIC:
+        case TFIXED:
+        case TSANS:
+        case TSERIF:
+            {
+                // nBold:   -1 = yet undefined; 0 = false; 1 = true;
+                // nItalic: -1 = yet undefined; 0 = false; 1 = true;
+                // nSansSerifFixed: -1 = undefined; 0 = sans; 1 = serif; 2 = fixed;
+                const char *pText = "normal";
+                if (nSansSerifFixed == -1 || nSansSerifFixed == 1)
+                {
+                    pText = "normal";
+                    if (nBold == 1 && nItalic != 1)
+                        pText = "bold";
+                    else if (nBold != 1 && nItalic == 1)
+                        pText = "italic";
+                    else if (nBold == 1 && nItalic == 1)
+                        pText = "bold-italic";
+                }
+                else if (nSansSerifFixed == 0)
+                {
+                    pText = "sans-serif";
+                    if (nBold == 1 && nItalic != 1)
+                        pText = "bold-sans-serif";
+                    else if (nBold != 1 && nItalic == 1)
+                        pText = "sans-serif-italic";
+                    else if (nBold == 1 && nItalic == 1)
+                        pText = "sans-serif-bold-italic";
+                }
+                else if (nSansSerifFixed == 2)
+                    pText = "monospace";    // no modifiers allowed for monospace ...
+                else
+                {
+                    SAL_WARN("starmath", "unexpected case");
+                }
+                AddAttribute(XML_NAMESPACE_MATH, XML_MATHVARIANT, OUString::createFromAscii( pText ));
+            }
+            break;
+        default:
+            break;
+
+    }
+    {
+        // Wrap everything in an <mphantom> or <mstyle> element. These elements
+        // are mrow-like, so ExportExpression doesn't need to add an explicit
+        // <mrow> element. See #fdo 66283.
+        SvXMLElementExport aElement(*this, XML_NAMESPACE_MATH,
+            pNode->GetToken().eType == TPHANTOM ? XML_MPHANTOM : XML_MSTYLE,
+            true, true);
+        ExportExpression(pNode, nLevel, true);
+    }
+}
+
+
+void SmXMLExport::ExportVerticalBrace(const SmVerticalBraceNode *pNode, int nLevel)
+{
+    // "[body] overbrace [script]"
+
+    // Position body, overbrace and script vertically. First place the overbrace
+    // OVER the body and then the script OVER this expression.
+
+    //      [script]
+    //   --[overbrace]--
+    // XXXXXX[body]XXXXXXX
+
+    // Similarly for the underbrace construction.
+
+    XMLTokenEnum which;
+
+    switch (pNode->GetToken().eType)
+    {
+        case TOVERBRACE:
+        default:
+            which = XML_MOVER;
+            break;
+        case TUNDERBRACE:
+            which = XML_MUNDER;
+            break;
+    }
+
+    SvXMLElementExport aOver1(*this, XML_NAMESPACE_MATH,which, true, true);
+    {//Scoping
+        // using accents will draw the over-/underbraces too close to the base
+        // see http://www.w3.org/TR/MathML2/chapter3.html#id.3.4.5.2
+        // also XML_ACCENT is illegal with XML_MUNDER. Thus no XML_ACCENT attribute here!
+        SvXMLElementExport aOver2(*this, XML_NAMESPACE_MATH,which, true, true);
+        ExportNodes(pNode->Body(), nLevel);
+        AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_TRUE);
+        ExportNodes(pNode->Brace(), nLevel);
+    }
+    ExportNodes(pNode->Script(), nLevel);
+}
+
+void SmXMLExport::ExportMatrix(const SmNode *pNode, int nLevel)
+{
+    SvXMLElementExport aTable(*this, XML_NAMESPACE_MATH, XML_MTABLE, true, true);
+    const SmMatrixNode *pMatrix = static_cast<const SmMatrixNode *>(pNode);
+    size_t i = 0;
+    for (sal_uInt16 y = 0; y < pMatrix->GetNumRows(); y++)
+    {
+        SvXMLElementExport aRow(*this, XML_NAMESPACE_MATH, XML_MTR, true, true);
+        for (sal_uInt16 x = 0; x < pMatrix->GetNumCols(); x++)
+        {
+            if (const SmNode *pTemp = pNode->GetSubNode(i++))
+            {
+                if (pTemp->GetType() == SmNodeType::Align &&
+                    pTemp->GetToken().eType != TALIGNC)
+                {
+                    // A left or right alignment is specified on this cell,
+                    // attach the corresponding columnalign attribute.
+                    AddAttribute(XML_NAMESPACE_MATH, XML_COLUMNALIGN,
+                        pTemp->GetToken().eType == TALIGNL ?
+                        XML_LEFT : XML_RIGHT);
+                }
+                SvXMLElementExport aCell(*this, XML_NAMESPACE_MATH, XML_MTD, true, true);
+                ExportNodes(pTemp, nLevel+1);
+            }
+        }
+    }
+}
+
+void SmXMLExport::ExportNodes(const SmNode *pNode, int nLevel)
+{
+    if (!pNode)
+        return;
+    switch(pNode->GetType())
+    {
+        case SmNodeType::Table:
+            ExportTable(pNode, nLevel);
+            break;
+        case SmNodeType::Align:
+        case SmNodeType::Bracebody:
+        case SmNodeType::Expression:
+            ExportExpression(pNode, nLevel);
+            break;
+        case SmNodeType::Line:
+            ExportLine(pNode, nLevel);
+            break;
+        case SmNodeType::Text:
+            ExportText(pNode);
+            break;
+        case SmNodeType::GlyphSpecial:
+        case SmNodeType::Math:
+            {
+                sal_Unicode cTmp = 0;
+                const SmTextNode *pTemp = static_cast< const SmTextNode * >(pNode);
+                if (!pTemp->GetText().isEmpty())
+                    cTmp = ConvertMathToMathML( pTemp->GetText()[0] );
+                if (cTmp == 0)
+                {
+                    // no conversion to MathML implemented -> export it as text
+                    // thus at least it will not vanish into nothing
+                    ExportText(pNode);
+                }
+                else
+                {
+                    switch (pNode->GetToken().eType)
+                    {
+                        case TINTD:
+                            AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_TRUE);
+                            break;
+                        default:
+                            break;
+                    }
+                    //To fully handle generic MathML we need to implement the full
+                    //operator dictionary, we will generate MathML with explicit
+                    //stretchiness for now.
+                    sal_Int16 nLength = GetAttrList().getLength();
+                    bool bAddStretch=true;
+                    for ( sal_Int16 i = 0; i < nLength; i++ )
+                    {
+                        OUString sLocalName;
+                        sal_uInt16 nPrefix = GetNamespaceMap().GetKeyByAttrName(
+                            GetAttrList().getNameByIndex(i), &sLocalName );
+
+                        if ( ( XML_NAMESPACE_MATH == nPrefix ) &&
+                            IsXMLToken(sLocalName, XML_STRETCHY) )
+                        {
+                            bAddStretch = false;
+                            break;
+                        }
+                    }
+                    if (bAddStretch)
+                    {
+                        AddAttribute(XML_NAMESPACE_MATH, XML_STRETCHY, XML_FALSE);
+                    }
+                    ExportMath(pNode);
+                }
+            }
+            break;
+        case SmNodeType::Special: //SmNodeType::Special requires some sort of Entity preservation in the XML engine.
+        case SmNodeType::MathIdent:
+        case SmNodeType::Place:
+            ExportMath(pNode);
+            break;
+        case SmNodeType::BinHor:
+            ExportBinaryHorizontal(pNode, nLevel);
+            break;
+        case SmNodeType::UnHor:
+            ExportUnaryHorizontal(pNode, nLevel);
+            break;
+        case SmNodeType::Brace:
+            ExportBrace(pNode, nLevel);
+            break;
+        case SmNodeType::BinVer:
+            ExportBinaryVertical(pNode, nLevel);
+            break;
+        case SmNodeType::BinDiagonal:
+            ExportBinaryDiagonal(pNode, nLevel);
+            break;
+        case SmNodeType::SubSup:
+            ExportSubSupScript(pNode, nLevel);
+            break;
+        case SmNodeType::Root:
+            ExportRoot(pNode, nLevel);
+            break;
+        case SmNodeType::Oper:
+            ExportOperator(pNode, nLevel);
+            break;
+        case SmNodeType::Attribut:
+            ExportAttributes(pNode, nLevel);
+            break;
+        case SmNodeType::Font:
+            ExportFont(pNode, nLevel);
+            break;
+        case SmNodeType::VerticalBrace:
+            ExportVerticalBrace(static_cast<const SmVerticalBraceNode *>(pNode), nLevel);
+            break;
+        case SmNodeType::Matrix:
+            ExportMatrix(pNode, nLevel);
+            break;
+        case SmNodeType::Blank:
+            ExportBlank(pNode);
+            break;
+       default:
+            SAL_WARN("starmath", "Warning: failed to export a node?");
+            break;
+
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/mathmlexport.hxx b/starmath/source/mathmlexport.hxx
new file mode 100644
index 000000000..376365842
--- /dev/null
+++ b/starmath/source/mathmlexport.hxx
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_MATHMLEXPORT_HXX
+#define INCLUDED_STARMATH_SOURCE_MATHMLEXPORT_HXX
+
+#include <xmloff/xmlexp.hxx>
+#include <xmloff/xmltoken.hxx>
+
+class SfxMedium;
+class SmNode;
+class SmVerticalBraceNode;
+namespace com::sun::star {
+    namespace io {
+        class XOutputStream; }
+    namespace beans {
+        class XPropertySet; }
+}
+
+
+class SmXMLExportWrapper
+{
+    css::uno::Reference<css::frame::XModel> xModel;
+    bool bFlat;     //set true for export to flat .mml, set false for
+                        //export to a .sxm (or whatever) package
+public:
+    explicit SmXMLExportWrapper(css::uno::Reference<css::frame::XModel> const &rRef)
+        : xModel(rRef), bFlat(true) {}
+
+    bool Export(SfxMedium &rMedium);
+    void SetFlat(bool bIn) {bFlat = bIn;}
+
+    static bool WriteThroughComponent(
+        const css::uno::Reference< css::io::XOutputStream >&   xOutputStream,
+        const css::uno::Reference< css::lang::XComponent >&    xComponent,
+        css::uno::Reference< css::uno::XComponentContext > const & rxContext,
+        css::uno::Reference< css::beans::XPropertySet > const & rPropSet,
+        const char* pComponentName );
+
+    static bool WriteThroughComponent(
+        const css::uno::Reference< css::embed::XStorage >& xStor,
+        const css::uno::Reference< css::lang::XComponent >& xComponent,
+        const char* pStreamName,
+        css::uno::Reference< css::uno::XComponentContext > const & rxContext,
+        css::uno::Reference< css::beans::XPropertySet > const & rPropSet,
+        const char* pComponentName );
+};
+
+
+class SmXMLExport final : public SvXMLExport
+{
+    const SmNode *  pTree;
+    OUString        aText;
+    bool        bSuccess;
+
+    void ExportNodes(const SmNode *pNode, int nLevel);
+    void ExportTable(const SmNode *pNode, int nLevel);
+    void ExportLine(const SmNode *pNode, int nLevel);
+    void ExportExpression(const SmNode *pNode, int nLevel,
+                          bool bNoMrowContainer = false);
+    void ExportText(const SmNode *pNode);
+    void ExportMath(const SmNode *pNode);
+    void ExportBinaryHorizontal(const SmNode *pNode, int nLevel);
+    void ExportUnaryHorizontal(const SmNode *pNode, int nLevel);
+    void ExportBrace(const SmNode *pNode, int nLevel);
+    void ExportBinaryVertical(const SmNode *pNode, int nLevel);
+    void ExportBinaryDiagonal(const SmNode *pNode, int nLevel);
+    void ExportSubSupScript(const SmNode *pNode, int nLevel);
+    void ExportRoot(const SmNode *pNode, int nLevel);
+    void ExportOperator(const SmNode *pNode, int nLevel);
+    void ExportAttributes(const SmNode *pNode, int nLevel);
+    void ExportFont(const SmNode *pNode, int nLevel);
+    void ExportVerticalBrace(const SmVerticalBraceNode *pNode, int nLevel);
+    void ExportMatrix(const SmNode *pNode, int nLevel);
+    void ExportBlank(const SmNode *pNode);
+
+public:
+    SmXMLExport(
+        const css::uno::Reference< css::uno::XComponentContext >& rContext,
+        OUString const & implementationName, SvXMLExportFlags nExportFlags);
+
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& rId ) override;
+    static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId() throw();
+
+    void ExportAutoStyles_() override {}
+    void ExportMasterStyles_() override {}
+    void ExportContent_() override;
+    ErrCode exportDoc(enum ::xmloff::token::XMLTokenEnum eClass = ::xmloff::token::XML_TOKEN_INVALID) override;
+
+    virtual void GetViewSettings(css::uno::Sequence<css::beans::PropertyValue>& aProps) override;
+    virtual void GetConfigurationSettings(css::uno::Sequence<css::beans::PropertyValue>& aProps) override;
+
+    bool GetSuccess() const {return bSuccess;}
+};
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/mathmlimport.cxx b/starmath/source/mathmlimport.cxx
new file mode 100644
index 000000000..6ae00afbb
--- /dev/null
+++ b/starmath/source/mathmlimport.cxx
@@ -0,0 +1,2744 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+/*todo: Change characters and tcharacters to accumulate the characters together
+into one string, xml parser hands them to us line by line rather than all in
+one go*/
+
+#include <com/sun/star/xml/sax/InputSource.hpp>
+#include <com/sun/star/xml/sax/FastParser.hpp>
+#include <com/sun/star/xml/sax/XFastParser.hpp>
+#include <com/sun/star/xml/sax/SAXParseException.hpp>
+#include <com/sun/star/document/XDocumentPropertiesSupplier.hpp>
+#include <com/sun/star/packages/WrongPasswordException.hpp>
+#include <com/sun/star/packages/zip/ZipIOException.hpp>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/embed/ElementModes.hpp>
+#include <com/sun/star/uno/Any.h>
+#include <com/sun/star/task/XStatusIndicator.hpp>
+
+#include <comphelper/fileformat.h>
+#include <comphelper/genericpropertyset.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <comphelper/propertysetinfo.hxx>
+#include <rtl/character.hxx>
+#include <sal/log.hxx>
+#include <sfx2/frame.hxx>
+#include <sfx2/docfile.hxx>
+#include <sfx2/sfxsids.hrc>
+#include <sfx2/sfxmodelfactory.hxx>
+#include <osl/diagnose.h>
+#include <sot/storage.hxx>
+#include <svtools/sfxecode.hxx>
+#include <svl/itemset.hxx>
+#include <svl/stritem.hxx>
+#include <unotools/streamwrap.hxx>
+#include <sax/tools/converter.hxx>
+#include <xmloff/DocumentSettingsContext.hxx>
+#include <xmloff/xmlnmspe.hxx>
+#include <xmloff/xmltoken.hxx>
+#include <xmloff/nmspmap.hxx>
+#include <xmloff/xmluconv.hxx>
+#include <xmloff/xmlmetai.hxx>
+#include <svx/dialmgr.hxx>
+#include <svx/strings.hrc>
+#include <tools/diagnose_ex.h>
+
+#include <memory>
+
+#include "mathmlattr.hxx"
+#include "mathmlimport.hxx"
+#include <document.hxx>
+#include <smdll.hxx>
+#include <unomodel.hxx>
+#include <utility.hxx>
+
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::container;
+using namespace ::com::sun::star::document;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star;
+using namespace ::xmloff::token;
+
+namespace {
+
+std::unique_ptr<SmNode> popOrZero(SmNodeStack& rStack)
+{
+    if (rStack.empty())
+        return nullptr;
+    auto pTmp = std::move(rStack.front());
+    rStack.pop_front();
+    return pTmp;
+}
+
+}
+
+ErrCode SmXMLImportWrapper::Import(SfxMedium &rMedium)
+{
+    ErrCode nError = ERRCODE_SFX_DOLOADFAILED;
+
+    uno::Reference<uno::XComponentContext> xContext( comphelper::getProcessComponentContext() );
+
+    //Make a model component from our SmModel
+    uno::Reference< lang::XComponent > xModelComp = xModel;
+    OSL_ENSURE( xModelComp.is(), "XMLReader::Read: got no model" );
+
+    // try to get an XStatusIndicator from the Medium
+    uno::Reference<task::XStatusIndicator> xStatusIndicator;
+
+    bool bEmbedded = false;
+    SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+
+    SmDocShell *pDocShell = pModel ?
+            static_cast<SmDocShell*>(pModel->GetObjectShell()) : nullptr;
+    if (pDocShell)
+    {
+        OSL_ENSURE( pDocShell->GetMedium() == &rMedium,
+                "different SfxMedium found" );
+
+        SfxItemSet* pSet = rMedium.GetItemSet();
+        if (pSet)
+        {
+            const SfxUnoAnyItem* pItem = static_cast<const SfxUnoAnyItem*>(
+                pSet->GetItem(SID_PROGRESS_STATUSBAR_CONTROL) );
+            if (pItem)
+                pItem->GetValue() >>= xStatusIndicator;
+        }
+
+        if ( SfxObjectCreateMode::EMBEDDED == pDocShell->GetCreateMode() )
+            bEmbedded = true;
+    }
+
+    comphelper::PropertyMapEntry aInfoMap[] =
+    {
+        { OUString("PrivateData"), 0,
+              cppu::UnoType<XInterface>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString("BaseURI"), 0,
+              ::cppu::UnoType<OUString>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString("StreamRelPath"), 0,
+              ::cppu::UnoType<OUString>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString("StreamName"), 0,
+              ::cppu::UnoType<OUString>::get(),
+              beans::PropertyAttribute::MAYBEVOID, 0 },
+        { OUString(), 0, css::uno::Type(), 0, 0 }
+    };
+    uno::Reference< beans::XPropertySet > xInfoSet(
+                comphelper::GenericPropertySet_CreateInstance(
+                            new comphelper::PropertySetInfo( aInfoMap ) ) );
+
+    // Set base URI
+    OUString const baseURI(rMedium.GetBaseURL());
+    // needed for relative URLs; but it's OK to import e.g. MathML from the
+    // clipboard without one
+    SAL_INFO_IF(baseURI.isEmpty(), "starmath", "SmXMLImportWrapper: no base URL");
+    xInfoSet->setPropertyValue("BaseURI", makeAny(baseURI));
+
+    sal_Int32 nSteps=3;
+    if ( !(rMedium.IsStorage()))
+        nSteps = 1;
+
+    sal_Int32 nProgressRange(nSteps);
+    if (xStatusIndicator.is())
+    {
+        xStatusIndicator->start(SvxResId(RID_SVXSTR_DOC_LOAD), nProgressRange);
+    }
+
+    nSteps=0;
+    if (xStatusIndicator.is())
+        xStatusIndicator->setValue(nSteps++);
+
+    if ( rMedium.IsStorage())
+    {
+        // TODO/LATER: handle the case of embedded links gracefully
+        if ( bEmbedded ) // && !rMedium.GetStorage()->IsRoot() )
+        {
+            OUString aName( "dummyObjName" );
+            if ( rMedium.GetItemSet() )
+            {
+                const SfxStringItem* pDocHierarchItem = static_cast<const SfxStringItem*>(
+                    rMedium.GetItemSet()->GetItem(SID_DOC_HIERARCHICALNAME) );
+                if ( pDocHierarchItem )
+                    aName = pDocHierarchItem->GetValue();
+            }
+
+            if ( !aName.isEmpty() )
+            {
+                xInfoSet->setPropertyValue("StreamRelPath", makeAny(aName));
+            }
+        }
+
+        bool bOASIS = ( SotStorage::GetVersion( rMedium.GetStorage() ) > SOFFICE_FILEFORMAT_60 );
+        if (xStatusIndicator.is())
+            xStatusIndicator->setValue(nSteps++);
+
+        auto nWarn = ReadThroughComponent(
+            rMedium.GetStorage(), xModelComp, "meta.xml",
+            xContext, xInfoSet,
+                (bOASIS ? "com.sun.star.comp.Math.XMLOasisMetaImporter"
+                        : "com.sun.star.comp.Math.XMLMetaImporter") );
+
+        if ( nWarn != ERRCODE_IO_BROKENPACKAGE )
+        {
+            if (xStatusIndicator.is())
+                xStatusIndicator->setValue(nSteps++);
+
+            nWarn = ReadThroughComponent(
+                rMedium.GetStorage(), xModelComp, "settings.xml",
+                xContext, xInfoSet,
+                (bOASIS ? "com.sun.star.comp.Math.XMLOasisSettingsImporter"
+                        : "com.sun.star.comp.Math.XMLSettingsImporter" ) );
+
+            if ( nWarn != ERRCODE_IO_BROKENPACKAGE )
+            {
+                if (xStatusIndicator.is())
+                    xStatusIndicator->setValue(nSteps++);
+
+                nError = ReadThroughComponent(
+                    rMedium.GetStorage(), xModelComp, "content.xml",
+                    xContext, xInfoSet, "com.sun.star.comp.Math.XMLImporter" );
+            }
+            else
+                nError = ERRCODE_IO_BROKENPACKAGE;
+        }
+        else
+            nError = ERRCODE_IO_BROKENPACKAGE;
+    }
+    else
+    {
+        Reference<io::XInputStream> xInputStream =
+            new utl::OInputStreamWrapper(rMedium.GetInStream());
+
+        if (xStatusIndicator.is())
+            xStatusIndicator->setValue(nSteps++);
+
+        nError = ReadThroughComponent( xInputStream, xModelComp,
+            xContext, xInfoSet, "com.sun.star.comp.Math.XMLImporter", false );
+    }
+
+    if (xStatusIndicator.is())
+        xStatusIndicator->end();
+    return nError;
+}
+
+
+/// read a component (file + filter version)
+ErrCode SmXMLImportWrapper::ReadThroughComponent(
+    const Reference<io::XInputStream>& xInputStream,
+    const Reference<XComponent>& xModelComponent,
+    Reference<uno::XComponentContext> const & rxContext,
+    Reference<beans::XPropertySet> const & rPropSet,
+    const char* pFilterName,
+    bool bEncrypted )
+{
+    ErrCode nError = ERRCODE_SFX_DOLOADFAILED;
+    OSL_ENSURE(xInputStream.is(), "input stream missing");
+    OSL_ENSURE(xModelComponent.is(), "document missing");
+    OSL_ENSURE(rxContext.is(), "factory missing");
+    OSL_ENSURE(nullptr != pFilterName,"I need a service name for the component!");
+
+    // prepare ParserInputSrouce
+    xml::sax::InputSource aParserInput;
+    aParserInput.aInputStream = xInputStream;
+
+    // get parser
+    Reference< xml::sax::XFastParser > xParser = xml::sax::FastParser::create(rxContext);
+
+    Sequence<Any> aArgs( 1 );
+    aArgs[0] <<= rPropSet;
+
+    // get filter
+    Reference< xml::sax::XFastDocumentHandler > xFilter(
+        rxContext->getServiceManager()->createInstanceWithArgumentsAndContext(
+            OUString::createFromAscii(pFilterName), aArgs, rxContext),
+        UNO_QUERY );
+    OSL_ENSURE( xFilter.is(), "Can't instantiate filter component." );
+    if ( !xFilter.is() )
+        return nError;
+
+    // connect parser and filter
+    xParser->setFastDocumentHandler( xFilter );
+
+    // connect model and filter
+    Reference < XImporter > xImporter( xFilter, UNO_QUERY );
+    xImporter->setTargetDocument( xModelComponent );
+
+    uno::Reference< xml::sax::XFastParser > xFastParser = dynamic_cast<
+                            xml::sax::XFastParser* >( xFilter.get() );
+
+    // finally, parser the stream
+    try
+    {
+        if( xFastParser.is() )
+            xFastParser->parseStream( aParserInput );
+        else
+            xParser->parseStream( aParserInput );
+
+        auto pFilter = comphelper::getUnoTunnelImplementation<SmXMLImport>(xFilter);
+        if ( pFilter && pFilter->GetSuccess() )
+            nError = ERRCODE_NONE;
+    }
+    catch (const xml::sax::SAXParseException& r)
+    {
+        // sax parser sends wrapped exceptions,
+        // try to find the original one
+        xml::sax::SAXException aSaxEx = *static_cast<const xml::sax::SAXException*>(&r);
+        bool bTryChild = true;
+
+        while( bTryChild )
+        {
+            xml::sax::SAXException aTmp;
+            if ( aSaxEx.WrappedException >>= aTmp )
+                aSaxEx = aTmp;
+            else
+                bTryChild = false;
+        }
+
+        packages::zip::ZipIOException aBrokenPackage;
+        if ( aSaxEx.WrappedException >>= aBrokenPackage )
+            return ERRCODE_IO_BROKENPACKAGE;
+
+        if ( bEncrypted )
+            nError = ERRCODE_SFX_WRONGPASSWORD;
+    }
+    catch (const xml::sax::SAXException& r)
+    {
+        packages::zip::ZipIOException aBrokenPackage;
+        if ( r.WrappedException >>= aBrokenPackage )
+            return ERRCODE_IO_BROKENPACKAGE;
+
+        if ( bEncrypted )
+            nError = ERRCODE_SFX_WRONGPASSWORD;
+    }
+    catch (const packages::zip::ZipIOException&)
+    {
+        nError = ERRCODE_IO_BROKENPACKAGE;
+    }
+    catch (const io::IOException&)
+    {
+    }
+    catch (const std::range_error&)
+    {
+    }
+
+    return nError;
+}
+
+
+ErrCode SmXMLImportWrapper::ReadThroughComponent(
+    const uno::Reference< embed::XStorage >& xStorage,
+    const Reference<XComponent>& xModelComponent,
+    const char* pStreamName,
+    Reference<uno::XComponentContext> const & rxContext,
+    Reference<beans::XPropertySet> const & rPropSet,
+    const char* pFilterName )
+{
+    OSL_ENSURE(xStorage.is(), "Need storage!");
+    OSL_ENSURE(nullptr != pStreamName, "Please, please, give me a name!");
+
+    // open stream (and set parser input)
+    OUString sStreamName = OUString::createFromAscii(pStreamName);
+
+    // get input stream
+    try
+    {
+        uno::Reference < io::XStream > xEventsStream = xStorage->openStreamElement( sStreamName, embed::ElementModes::READ );
+
+        // determine if stream is encrypted or not
+        uno::Reference < beans::XPropertySet > xProps( xEventsStream, uno::UNO_QUERY );
+        Any aAny = xProps->getPropertyValue( "Encrypted" );
+        bool bEncrypted = false;
+        if ( aAny.getValueType() == cppu::UnoType<bool>::get() )
+            aAny >>= bEncrypted;
+
+        // set Base URL
+        if ( rPropSet.is() )
+        {
+            rPropSet->setPropertyValue( "StreamName", makeAny( sStreamName ) );
+        }
+
+
+        Reference < io::XInputStream > xStream = xEventsStream->getInputStream();
+        return ReadThroughComponent( xStream, xModelComponent, rxContext, rPropSet, pFilterName, bEncrypted );
+    }
+    catch ( packages::WrongPasswordException& )
+    {
+        return ERRCODE_SFX_WRONGPASSWORD;
+    }
+    catch( packages::zip::ZipIOException& )
+    {
+        return ERRCODE_IO_BROKENPACKAGE;
+    }
+    catch ( uno::Exception& )
+    {
+    }
+
+    return ERRCODE_SFX_DOLOADFAILED;
+}
+
+
+SmXMLImport::SmXMLImport(
+    const css::uno::Reference< css::uno::XComponentContext >& rContext,
+    OUString const & implementationName, SvXMLImportFlags nImportFlags)
+:   SvXMLImport(rContext, implementationName, nImportFlags),
+    bSuccess(false),
+    nParseDepth(0)
+{
+}
+
+namespace
+{
+    class theSmXMLImportUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theSmXMLImportUnoTunnelId> {};
+}
+
+const uno::Sequence< sal_Int8 > & SmXMLImport::getUnoTunnelId() throw()
+{
+    return theSmXMLImportUnoTunnelId::get().getSeq();
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
+Math_XMLImporter_get_implementation(uno::XComponentContext* pCtx,
+                                    uno::Sequence<uno::Any> const& /*rSeq*/)
+{
+    return cppu::acquire(
+        new SmXMLImport(pCtx, "com.sun.star.comp.Math.XMLImporter", SvXMLImportFlags::ALL));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
+Math_XMLOasisMetaImporter_get_implementation(uno::XComponentContext* pCtx,
+                                             uno::Sequence<uno::Any> const& /*rSeq*/)
+{
+    return cppu::acquire(new SmXMLImport(pCtx, "com.sun.star.comp.Math.XMLOasisMetaImporter",
+                                         SvXMLImportFlags::META));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
+Math_XMLOasisSettingsImporter_get_implementation(uno::XComponentContext* pCtx,
+                                                 uno::Sequence<uno::Any> const& /*rSeq*/)
+{
+    return cppu::acquire(new SmXMLImport(pCtx, "com.sun.star.comp.Math.XMLOasisSettingsImporter",
+                                         SvXMLImportFlags::SETTINGS));
+}
+
+sal_Int64 SAL_CALL SmXMLImport::getSomething(
+    const uno::Sequence< sal_Int8 >&rId )
+{
+    if ( isUnoTunnelId<SmXMLImport>(rId) )
+        return sal::static_int_cast< sal_Int64 >(reinterpret_cast< sal_uIntPtr >(this));
+
+    return SvXMLImport::getSomething( rId );
+}
+
+void SmXMLImport::endDocument()
+{
+    //Set the resulted tree into the SmDocShell where it belongs
+    std::unique_ptr<SmNode> pTree = popOrZero(aNodeStack);
+    if (pTree && pTree->GetType() == SmNodeType::Table)
+    {
+        uno::Reference <frame::XModel> xModel = GetModel();
+        SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+
+        if (pModel)
+        {
+            SmDocShell *pDocShell =
+                static_cast<SmDocShell*>(pModel->GetObjectShell());
+            auto pTreeTmp = pTree.get();
+            pDocShell->SetFormulaTree(static_cast<SmTableNode *>(pTree.release()));
+            if (aText.isEmpty())  //If we picked up no annotation text
+            {
+                OUStringBuffer aStrBuf;
+                // Get text from imported formula
+                pTreeTmp->CreateTextFromNode(aStrBuf);
+                aStrBuf.stripEnd(' ');
+                aText = aStrBuf.makeStringAndClear();
+            }
+
+            // Convert symbol names
+            SmParser &rParser = pDocShell->GetParser();
+            bool bVal = rParser.IsImportSymbolNames();
+            rParser.SetImportSymbolNames( true );
+            auto pTmpTree = rParser.Parse( aText );
+            aText = rParser.GetText();
+            pTmpTree.reset();
+            rParser.SetImportSymbolNames( bVal );
+
+            pDocShell->SetText( aText );
+        }
+        OSL_ENSURE(pModel,"So there *was* a UNO problem after all");
+
+        bSuccess = true;
+    }
+
+    SvXMLImport::endDocument();
+}
+
+namespace {
+
+class SmXMLImportContext: public SvXMLImportContext
+{
+public:
+    SmXMLImportContext( SmXMLImport &rImport)
+        : SvXMLImportContext(rImport)
+    {
+        GetSmImport().IncParseDepth();
+    }
+
+    virtual ~SmXMLImportContext() override
+    {
+        GetSmImport().DecParseDepth();
+    }
+
+    SmXMLImport& GetSmImport()
+    {
+        return static_cast<SmXMLImport&>(GetImport());
+    }
+
+    virtual void TCharacters(const OUString & /*rChars*/);
+    virtual void SAL_CALL characters(const OUString &rChars) override;
+    virtual uno::Reference< xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+    virtual void SAL_CALL startFastElement(sal_Int32 /*nElement*/, const css::uno::Reference<css::xml::sax::XFastAttributeList>& /*rAttrList*/) override
+    {
+        if (GetSmImport().TooDeep())
+            throw std::range_error("too deep");
+    }
+};
+
+}
+
+void SmXMLImportContext::TCharacters(const OUString & /*rChars*/)
+{
+}
+
+void SmXMLImportContext::characters(const OUString &rChars)
+{
+    /*
+    Whitespace occurring within the content of token elements is "trimmed"
+    from the ends (i.e. all whitespace at the beginning and end of the
+    content is removed), and "collapsed" internally (i.e. each sequence of
+    1 or more whitespace characters is replaced with one blank character).
+    */
+    //collapsing not done yet!
+    const OUString &rChars2 = rChars.trim();
+    if (!rChars2.isEmpty())
+        TCharacters(rChars2/*.collapse()*/);
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SAL_CALL SmXMLImportContext::createFastChildContext(
+        sal_Int32 /*nElement*/, const uno::Reference< xml::sax::XFastAttributeList >& /*xAttrList*/ )
+{
+    return nullptr;
+}
+
+namespace {
+
+struct SmXMLContext_Helper
+{
+    sal_Int8 nIsBold;
+    sal_Int8 nIsItalic;
+    double nFontSize;
+    OUString sFontFamily;
+    OUString sColor;
+
+    SmXMLImportContext & rContext;
+
+    explicit SmXMLContext_Helper(SmXMLImportContext &rImport)
+        : nIsBold( -1 )
+        , nIsItalic( -1 )
+        , nFontSize( 0.0 )
+        , rContext( rImport )
+        {}
+
+    bool IsFontNodeNeeded() const;
+    void RetrieveAttrs(const uno::Reference< xml::sax::XFastAttributeList > &xAttrList );
+    void ApplyAttrs();
+};
+
+}
+
+bool SmXMLContext_Helper::IsFontNodeNeeded() const
+{
+    return nIsBold != -1 ||
+        nIsItalic != -1 ||
+        nFontSize != 0.0 ||
+        !sFontFamily.isEmpty() ||
+        !sColor.isEmpty();
+}
+
+void SmXMLContext_Helper::RetrieveAttrs(const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    bool bMvFound = false;
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        // sometimes they have namespace, sometimes not?
+        switch(aIter.getToken() & TOKEN_MASK)
+        {
+            case XML_FONTWEIGHT:
+                nIsBold = sal_Int8(sValue == GetXMLToken(XML_BOLD));
+                break;
+            case XML_FONTSTYLE:
+                nIsItalic = sal_Int8(sValue == GetXMLToken(XML_ITALIC));
+                break;
+            case XML_FONTSIZE:
+            case XML_MATHSIZE:
+                ::sax::Converter::convertDouble(nFontSize, sValue);
+                rContext.GetSmImport().GetMM100UnitConverter().
+                    SetXMLMeasureUnit(util::MeasureUnit::POINT);
+                if (-1 == sValue.indexOf(GetXMLToken(XML_UNIT_PT)))
+                {
+                    if (-1 == sValue.indexOf('%'))
+                        nFontSize=0.0;
+                    else
+                    {
+                        rContext.GetSmImport().GetMM100UnitConverter().
+                            SetXMLMeasureUnit(util::MeasureUnit::PERCENT);
+                    }
+                }
+                break;
+            case XML_FONTFAMILY:
+                sFontFamily = sValue;
+                break;
+            case XML_COLOR:
+                sColor = sValue;
+                break;
+            case XML_MATHCOLOR:
+                sColor = sValue;
+                break;
+            case XML_MATHVARIANT:
+                bMvFound = true;
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                break;
+        }
+    }
+
+    if (bMvFound)
+    {
+        // Ignore deprecated attributes fontfamily, fontweight, and fontstyle
+        // in favor of mathvariant, as specified in
+        // <https://www.w3.org/TR/MathML3/chapter3.html#presm.deprecatt>.
+        sFontFamily.clear();
+        nIsBold = -1;
+        nIsItalic = -1;
+    }
+}
+
+void SmXMLContext_Helper::ApplyAttrs()
+{
+    SmNodeStack &rNodeStack = rContext.GetSmImport().GetNodeStack();
+
+    if (!IsFontNodeNeeded())
+        return;
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.nLevel = 5;
+
+    if (nIsBold != -1)
+    {
+        if (nIsBold)
+            aToken.eType = TBOLD;
+        else
+            aToken.eType = TNBOLD;
+        std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(aToken));
+        pFontNode->SetSubNodes(nullptr, popOrZero(rNodeStack));
+        rNodeStack.push_front(std::move(pFontNode));
+    }
+    if (nIsItalic != -1)
+    {
+        if (nIsItalic)
+            aToken.eType = TITALIC;
+        else
+            aToken.eType = TNITALIC;
+        std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(aToken));
+        pFontNode->SetSubNodes(nullptr,popOrZero(rNodeStack));
+        rNodeStack.push_front(std::move(pFontNode));
+    }
+    if (nFontSize != 0.0)
+    {
+        aToken.eType = TSIZE;
+        std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(aToken));
+
+        if (util::MeasureUnit::PERCENT == rContext.GetSmImport()
+                .GetMM100UnitConverter().GetXMLMeasureUnit())
+        {
+            if (nFontSize < 100.00)
+                pFontNode->SetSizeParameter(Fraction(100.00/nFontSize),
+                    FontSizeType::DIVIDE);
+            else
+                pFontNode->SetSizeParameter(Fraction(nFontSize/100.00),
+                    FontSizeType::MULTIPLY);
+        }
+        else
+            pFontNode->SetSizeParameter(Fraction(nFontSize),FontSizeType::ABSOLUT);
+
+        pFontNode->SetSubNodes(nullptr, popOrZero(rNodeStack));
+        rNodeStack.push_front(std::move(pFontNode));
+    }
+    if (!sFontFamily.isEmpty())
+    {
+        if (sFontFamily.equalsIgnoreAsciiCase(GetXMLToken(XML_FIXED)))
+            aToken.eType = TFIXED;
+        else if (sFontFamily.equalsIgnoreAsciiCase("sans"))
+            aToken.eType = TSANS;
+        else if (sFontFamily.equalsIgnoreAsciiCase("serif"))
+            aToken.eType = TSERIF;
+        else //Just give up, we need to extend our font mechanism to be
+            //more general
+            return;
+
+        aToken.aText = sFontFamily;
+        std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(aToken));
+        pFontNode->SetSubNodes(nullptr, popOrZero(rNodeStack));
+        rNodeStack.push_front(std::move(pFontNode));
+    }
+    if (sColor.isEmpty())
+        return;
+
+    //Again we can only handle a small set of colours in
+    //StarMath for now.
+    const SvXMLTokenMap& rTokenMap =
+        rContext.GetSmImport().GetColorTokenMap();
+    sal_uInt16 tok = rTokenMap.Get(XML_NAMESPACE_MATH, sColor);
+    if (tok != XML_TOK_UNKNOWN)
+    {
+        aToken.eType = static_cast<SmTokenType>(tok);
+        std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(aToken));
+        pFontNode->SetSubNodes(nullptr, popOrZero(rNodeStack));
+        rNodeStack.push_front(std::move(pFontNode));
+    }
+}
+
+namespace {
+
+class SmXMLTokenAttrHelper
+{
+    SmXMLImportContext& mrContext;
+    MathMLMathvariantValue meMv;
+    bool mbMvFound;
+
+public:
+    SmXMLTokenAttrHelper(SmXMLImportContext& rContext)
+        : mrContext(rContext)
+        , meMv(MathMLMathvariantValue::Normal)
+        , mbMvFound(false)
+    {}
+
+    void RetrieveAttrs(const uno::Reference<xml::sax::XFastAttributeList>& xAttrList);
+    void ApplyAttrs(MathMLMathvariantValue eDefaultMv);
+};
+
+}
+
+void SmXMLTokenAttrHelper::RetrieveAttrs(const uno::Reference<xml::sax::XFastAttributeList>& xAttrList)
+{
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        switch(aIter.getToken())
+        {
+            case XML_MATHVARIANT:
+                if (!GetMathMLMathvariantValue(sValue, meMv))
+                    SAL_WARN("starmath", "failed to recognize mathvariant: " << sValue);
+                mbMvFound = true;
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                break;
+        }
+    }
+}
+
+void SmXMLTokenAttrHelper::ApplyAttrs(MathMLMathvariantValue eDefaultMv)
+{
+    assert( eDefaultMv == MathMLMathvariantValue::Normal ||
+            eDefaultMv == MathMLMathvariantValue::Italic );
+
+    std::vector<SmTokenType> vVariant;
+    MathMLMathvariantValue eMv = mbMvFound ? meMv : eDefaultMv;
+    switch(eMv)
+    {
+        case MathMLMathvariantValue::Normal:
+            vVariant.push_back(TNITALIC);
+            break;
+        case MathMLMathvariantValue::Bold:
+            vVariant.push_back(TBOLD);
+            break;
+        case MathMLMathvariantValue::Italic:
+            // nothing to do
+            break;
+        case MathMLMathvariantValue::BoldItalic:
+            vVariant.push_back(TITALIC);
+            vVariant.push_back(TBOLD);
+            break;
+        case MathMLMathvariantValue::DoubleStruck:
+            // TODO
+            break;
+        case MathMLMathvariantValue::BoldFraktur:
+            // TODO: Fraktur
+            vVariant.push_back(TBOLD);
+            break;
+        case MathMLMathvariantValue::Script:
+            // TODO
+            break;
+        case MathMLMathvariantValue::BoldScript:
+            // TODO: Script
+            vVariant.push_back(TBOLD);
+            break;
+        case MathMLMathvariantValue::Fraktur:
+            // TODO
+            break;
+        case MathMLMathvariantValue::SansSerif:
+            vVariant.push_back(TSANS);
+            break;
+        case MathMLMathvariantValue::BoldSansSerif:
+            vVariant.push_back(TSANS);
+            vVariant.push_back(TBOLD);
+            break;
+        case MathMLMathvariantValue::SansSerifItalic:
+            vVariant.push_back(TITALIC);
+            vVariant.push_back(TSANS);
+            break;
+        case MathMLMathvariantValue::SansSerifBoldItalic:
+            vVariant.push_back(TITALIC);
+            vVariant.push_back(TBOLD);
+            vVariant.push_back(TSANS);
+            break;
+        case MathMLMathvariantValue::Monospace:
+            vVariant.push_back(TFIXED);
+            break;
+        case MathMLMathvariantValue::Initial:
+        case MathMLMathvariantValue::Tailed:
+        case MathMLMathvariantValue::Looped:
+        case MathMLMathvariantValue::Stretched:
+            // TODO
+            break;
+    }
+    if (vVariant.empty())
+        return;
+    SmNodeStack &rNodeStack = mrContext.GetSmImport().GetNodeStack();
+    for (auto eType : vVariant)
+    {
+        SmToken aToken;
+        aToken.eType = eType;
+        aToken.cMathChar = '\0';
+        aToken.nLevel = 5;
+        std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(aToken));
+        pFontNode->SetSubNodes(nullptr, popOrZero(rNodeStack));
+        rNodeStack.push_front(std::move(pFontNode));
+    }
+}
+
+namespace {
+
+class SmXMLDocContext_Impl : public SmXMLImportContext
+{
+public:
+    SmXMLDocContext_Impl( SmXMLImport &rImport)
+        : SmXMLImportContext(rImport) {}
+
+    virtual uno::Reference< xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+
+/*avert the gaze from the originator*/
+class SmXMLRowContext_Impl : public SmXMLDocContext_Impl
+{
+protected:
+    size_t nElementCount;
+
+public:
+    SmXMLRowContext_Impl(SmXMLImport &rImport)
+        : SmXMLDocContext_Impl(rImport)
+        , nElementCount(GetSmImport().GetNodeStack().size())
+    {
+    }
+
+    virtual uno::Reference< xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+
+    uno::Reference< xml::sax::XFastContextHandler > StrictCreateChildContext(sal_Int32 nElement);
+
+    virtual void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+class SmXMLEncloseContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    // TODO/LATER: convert <menclose notation="horizontalstrike"> into
+    // "overstrike{}" and extend the Math syntax to support more notations
+    SmXMLEncloseContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLEncloseContext_Impl::endFastElement(sal_Int32 nElement)
+{
+    /*
+    <menclose> accepts any number of arguments; if this number is not 1, its
+    contents are treated as a single "inferred <mrow>" containing its
+    arguments
+    */
+    if (GetSmImport().GetNodeStack().size() - nElementCount != 1)
+        SmXMLRowContext_Impl::endFastElement( nElement );
+}
+
+namespace {
+
+class SmXMLFracContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    // TODO/LATER: convert <mfrac bevelled="true"> into "wideslash{}{}"
+    SmXMLFracContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+
+class SmXMLSqrtContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    SmXMLSqrtContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+
+class SmXMLRootContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    SmXMLRootContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+
+class SmXMLStyleContext_Impl : public SmXMLRowContext_Impl
+{
+protected:
+    SmXMLContext_Helper aStyleHelper;
+
+public:
+    /*Right now the style tag is completely ignored*/
+    SmXMLStyleContext_Impl(SmXMLImport &rImport) : SmXMLRowContext_Impl(rImport),
+        aStyleHelper(*this) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList > &xAttrList ) override;
+};
+
+}
+
+void SmXMLStyleContext_Impl::startFastElement( sal_Int32 /*nElement*/, const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    aStyleHelper.RetrieveAttrs(xAttrList);
+}
+
+
+void SmXMLStyleContext_Impl::endFastElement(sal_Int32 nElement)
+{
+    /*
+    <mstyle> accepts any number of arguments; if this number is not 1, its
+    contents are treated as a single "inferred <mrow>" containing its
+    arguments
+    */
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    if (rNodeStack.size() - nElementCount != 1)
+        SmXMLRowContext_Impl::endFastElement(nElement);
+    aStyleHelper.ApplyAttrs();
+}
+
+namespace {
+
+class SmXMLPaddedContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    /*Right now the style tag is completely ignored*/
+    SmXMLPaddedContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLPaddedContext_Impl::endFastElement(sal_Int32 nElement)
+{
+    /*
+    <mpadded> accepts any number of arguments; if this number is not 1, its
+    contents are treated as a single "inferred <mrow>" containing its
+    arguments
+    */
+    if (GetSmImport().GetNodeStack().size() - nElementCount != 1)
+        SmXMLRowContext_Impl::endFastElement(nElement);
+}
+
+namespace {
+
+class SmXMLPhantomContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    /*Right now the style tag is completely ignored*/
+    SmXMLPhantomContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLPhantomContext_Impl::endFastElement(sal_Int32 nElement)
+{
+    /*
+    <mphantom> accepts any number of arguments; if this number is not 1, its
+    contents are treated as a single "inferred <mrow>" containing its
+    arguments
+    */
+    if (GetSmImport().GetNodeStack().size() - nElementCount != 1)
+        SmXMLRowContext_Impl::endFastElement(nElement);
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.nLevel = 5;
+    aToken.eType = TPHANTOM;
+
+    std::unique_ptr<SmFontNode> pPhantom(new SmFontNode(aToken));
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    pPhantom->SetSubNodes(nullptr, popOrZero(rNodeStack));
+    rNodeStack.push_front(std::move(pPhantom));
+}
+
+namespace {
+
+class SmXMLFencedContext_Impl : public SmXMLRowContext_Impl
+{
+protected:
+    sal_Unicode cBegin;
+    sal_Unicode cEnd;
+
+public:
+    SmXMLFencedContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport),
+        cBegin('('), cEnd(')') {}
+
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList > & xAttrList ) override;
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLFencedContext_Impl::startFastElement(sal_Int32 /*nElement*/, const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        switch(aIter.getToken())
+        {
+            //temp, starmath cannot handle multichar brackets (I think)
+            case XML_OPEN:
+                cBegin = sValue[0];
+                break;
+            case XML_CLOSE:
+                cEnd = sValue[0];
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                /*Go to superclass*/
+                break;
+        }
+    }
+}
+
+
+void SmXMLFencedContext_Impl::endFastElement(sal_Int32 /*nElement*/)
+{
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.aText = ",";
+    aToken.nLevel = 5;
+
+    aToken.eType = TLPARENT;
+    aToken.cMathChar = cBegin;
+    std::unique_ptr<SmStructureNode> pSNode(new SmBraceNode(aToken));
+    std::unique_ptr<SmNode> pLeft(new SmMathSymbolNode(aToken));
+
+    aToken.cMathChar = cEnd;
+    aToken.eType = TRPARENT;
+    std::unique_ptr<SmNode> pRight(new SmMathSymbolNode(aToken));
+
+    SmNodeArray aRelationArray;
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    aToken.cMathChar = '\0';
+    aToken.eType = TIDENT;
+
+    auto i = rNodeStack.size() - nElementCount;
+    if (rNodeStack.size() - nElementCount > 1)
+        i += rNodeStack.size() - 1 - nElementCount;
+    aRelationArray.resize(i);
+    while (rNodeStack.size() > nElementCount)
+    {
+        auto pNode = std::move(rNodeStack.front());
+        rNodeStack.pop_front();
+        aRelationArray[--i] = pNode.release();
+        if (i > 1 && rNodeStack.size() > 1)
+            aRelationArray[--i] = new SmGlyphSpecialNode(aToken);
+    }
+
+    SmToken aDummy;
+    std::unique_ptr<SmStructureNode> pBody(new SmExpressionNode(aDummy));
+    pBody->SetSubNodes(std::move(aRelationArray));
+
+
+    pSNode->SetSubNodes(std::move(pLeft), std::move(pBody), std::move(pRight));
+    pSNode->SetScaleMode(SmScaleMode::Height);
+    GetSmImport().GetNodeStack().push_front(std::move(pSNode));
+}
+
+namespace {
+
+class SmXMLErrorContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    SmXMLErrorContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLErrorContext_Impl::endFastElement(sal_Int32 /*nElement*/)
+{
+    /*Right now the error tag is completely ignored, what
+     can I do with it in starmath, ?, maybe we need a
+     report window ourselves, do a test for validity of
+     the xml input, use mirrors, and then generate
+     the markup inside the merror with a big red colour
+     of something. For now just throw them all away.
+     */
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    while (rNodeStack.size() > nElementCount)
+    {
+        rNodeStack.pop_front();
+    }
+}
+
+namespace {
+
+class SmXMLNumberContext_Impl : public SmXMLImportContext
+{
+protected:
+    SmToken aToken;
+
+public:
+    SmXMLNumberContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport)
+    {
+        aToken.cMathChar = '\0';
+        aToken.nLevel = 5;
+        aToken.eType = TNUMBER;
+    }
+
+    virtual void TCharacters(const OUString &rChars) override;
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLNumberContext_Impl::TCharacters(const OUString &rChars)
+{
+    aToken.aText = rChars;
+}
+
+void SmXMLNumberContext_Impl::endFastElement(sal_Int32 )
+{
+    GetSmImport().GetNodeStack().push_front(std::make_unique<SmTextNode>(aToken,FNT_NUMBER));
+}
+
+namespace {
+
+class SmXMLAnnotationContext_Impl : public SmXMLImportContext
+{
+    bool bIsStarMath;
+
+public:
+    SmXMLAnnotationContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport), bIsStarMath(false) {}
+
+    void SAL_CALL characters(const OUString &rChars) override;
+
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference<xml::sax::XFastAttributeList > & xAttrList ) override;
+};
+
+}
+
+void SmXMLAnnotationContext_Impl::startFastElement(sal_Int32 /*nElement*/, const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        // sometimes they have namespace, sometimes not?
+        switch(aIter.getToken() & TOKEN_MASK)
+        {
+            case XML_ENCODING:
+                bIsStarMath= sValue == "StarMath 5.0";
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                break;
+        }
+    }
+}
+
+void SmXMLAnnotationContext_Impl::characters(const OUString &rChars)
+{
+    if (bIsStarMath)
+        GetSmImport().SetText( GetSmImport().GetText() + rChars );
+}
+
+namespace {
+
+class SmXMLTextContext_Impl : public SmXMLImportContext
+{
+protected:
+    SmToken aToken;
+
+public:
+    SmXMLTextContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport)
+    {
+        aToken.cMathChar = '\0';
+        aToken.nLevel = 5;
+        aToken.eType = TTEXT;
+    }
+
+    virtual void TCharacters(const OUString &rChars) override;
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLTextContext_Impl::TCharacters(const OUString &rChars)
+{
+    aToken.aText = rChars;
+}
+
+void SmXMLTextContext_Impl::endFastElement(sal_Int32 )
+{
+    GetSmImport().GetNodeStack().push_front(std::make_unique<SmTextNode>(aToken,FNT_TEXT));
+}
+
+namespace {
+
+class SmXMLStringContext_Impl : public SmXMLImportContext
+{
+protected:
+    SmToken aToken;
+
+public:
+    SmXMLStringContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport)
+    {
+        aToken.cMathChar = '\0';
+        aToken.nLevel = 5;
+        aToken.eType = TTEXT;
+    }
+
+    virtual void TCharacters(const OUString &rChars) override;
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLStringContext_Impl::TCharacters(const OUString &rChars)
+{
+    /*
+    The content of <ms> elements should be rendered with visible "escaping" of
+    certain characters in the content, including at least "double quote"
+    itself, and preferably whitespace other than individual blanks. The intent
+    is for the viewer to see that the expression is a string literal, and to
+    see exactly which characters form its content. For example, <ms>double
+    quote is "</ms> might be rendered as "double quote is \"".
+
+    Obviously this isn't fully done here.
+    */
+    aToken.aText = "\"" + rChars + "\"";
+}
+
+void SmXMLStringContext_Impl::endFastElement(sal_Int32 )
+{
+    GetSmImport().GetNodeStack().push_front(std::make_unique<SmTextNode>(aToken,FNT_FIXED));
+}
+
+namespace {
+
+class SmXMLIdentifierContext_Impl : public SmXMLImportContext
+{
+    SmXMLTokenAttrHelper maTokenAttrHelper;
+    SmXMLContext_Helper aStyleHelper;
+    SmToken aToken;
+
+public:
+    SmXMLIdentifierContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport)
+        , maTokenAttrHelper(*this)
+        , aStyleHelper(*this)
+    {
+        aToken.cMathChar = '\0';
+        aToken.nLevel = 5;
+        aToken.eType = TIDENT;
+    }
+
+    void TCharacters(const OUString &rChars) override;
+    void SAL_CALL startFastElement(sal_Int32 /*nElement*/, const uno::Reference< xml::sax::XFastAttributeList > & xAttrList ) override
+    {
+        maTokenAttrHelper.RetrieveAttrs(xAttrList);
+        aStyleHelper.RetrieveAttrs(xAttrList);
+    };
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLIdentifierContext_Impl::endFastElement(sal_Int32 )
+{
+    std::unique_ptr<SmTextNode> pNode;
+    //we will handle identifier italic/normal here instead of with a standalone
+    //font node
+    if (((aStyleHelper.nIsItalic == -1) && (aToken.aText.getLength() > 1))
+        || ((aStyleHelper.nIsItalic == 0) && (aToken.aText.getLength() == 1)))
+    {
+        pNode.reset(new SmTextNode(aToken,FNT_FUNCTION));
+        pNode->GetFont().SetItalic(ITALIC_NONE);
+        aStyleHelper.nIsItalic = -1;
+    }
+    else
+        pNode.reset(new SmTextNode(aToken,FNT_VARIABLE));
+    if (aStyleHelper.nIsItalic != -1)
+    {
+        if (aStyleHelper.nIsItalic)
+            pNode->GetFont().SetItalic(ITALIC_NORMAL);
+        else
+            pNode->GetFont().SetItalic(ITALIC_NONE);
+        aStyleHelper.nIsItalic = -1;
+    }
+    GetSmImport().GetNodeStack().push_front(std::move(pNode));
+    aStyleHelper.ApplyAttrs();
+
+    maTokenAttrHelper.ApplyAttrs( (aToken.aText.getLength() == 1)
+                                  ? MathMLMathvariantValue::Italic
+                                  : MathMLMathvariantValue::Normal );
+}
+
+void SmXMLIdentifierContext_Impl::TCharacters(const OUString &rChars)
+{
+    aToken.aText = rChars;
+}
+
+namespace {
+
+class SmXMLOperatorContext_Impl : public SmXMLImportContext
+{
+    SmXMLTokenAttrHelper maTokenAttrHelper;
+    bool bIsStretchy;
+    SmToken aToken;
+
+public:
+    SmXMLOperatorContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport)
+        , maTokenAttrHelper(*this)
+        , bIsStretchy(false)
+    {
+        aToken.eType = TSPECIAL;
+        aToken.nLevel = 5;
+    }
+
+    void TCharacters(const OUString &rChars) override;
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList > &xAttrList ) override;
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLOperatorContext_Impl::TCharacters(const OUString &rChars)
+{
+    aToken.cMathChar = rChars[0];
+}
+
+void SmXMLOperatorContext_Impl::endFastElement(sal_Int32 )
+{
+    std::unique_ptr<SmMathSymbolNode> pNode(new SmMathSymbolNode(aToken));
+    //For stretchy scaling the scaling must be retrieved from this node
+    //and applied to the expression itself so as to get the expression
+    //to scale the operator to the height of the expression itself
+    if (bIsStretchy)
+        pNode->SetScaleMode(SmScaleMode::Height);
+    GetSmImport().GetNodeStack().push_front(std::move(pNode));
+
+    // TODO: apply to non-alphabetic characters too
+    if (rtl::isAsciiAlpha(aToken.cMathChar))
+        maTokenAttrHelper.ApplyAttrs(MathMLMathvariantValue::Normal);
+}
+
+
+void SmXMLOperatorContext_Impl::startFastElement(sal_Int32 /*nElement*/, const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    maTokenAttrHelper.RetrieveAttrs(xAttrList);
+
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        switch(aIter.getToken())
+        {
+            case XML_STRETCHY:
+                bIsStretchy = sValue == GetXMLToken(XML_TRUE);
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                break;
+        }
+    }
+}
+
+namespace {
+
+class SmXMLSpaceContext_Impl : public SmXMLImportContext
+{
+public:
+    SmXMLSpaceContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport) {}
+
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+};
+
+bool lcl_CountBlanks(const MathMLAttributeLengthValue &rLV,
+                     sal_Int32 *pWide, sal_Int32 *pNarrow)
+{
+    assert(pWide);
+    assert(pNarrow);
+    if (rLV.aNumber.GetNumerator() == 0)
+    {
+        *pWide = *pNarrow = 0;
+        return true;
+    }
+    // TODO: honor other units than em
+    if (rLV.eUnit != MathMLLengthUnit::Em)
+        return false;
+    if (rLV.aNumber.GetNumerator() < 0)
+        return false;
+    const Fraction aTwo(2, 1);
+    auto aWide = rLV.aNumber / aTwo;
+    auto nWide = static_cast<sal_Int32>(static_cast<long>(aWide));
+    if (nWide < 0)
+        return false;
+    const Fraction aPointFive(1, 2);
+    auto aNarrow = (rLV.aNumber - Fraction(nWide, 1) * aTwo) / aPointFive;
+    auto nNarrow = static_cast<sal_Int32>(static_cast<long>(aNarrow));
+    if (nNarrow < 0)
+        return false;
+    *pWide = nWide;
+    *pNarrow = nNarrow;
+    return true;
+}
+
+}
+
+void SmXMLSpaceContext_Impl::startFastElement(sal_Int32 /*nElement*/,
+    const uno::Reference<xml::sax::XFastAttributeList > & xAttrList )
+{
+    // There is no syntax in Math to specify blank nodes of arbitrary size yet.
+    MathMLAttributeLengthValue aLV;
+    sal_Int32 nWide = 0, nNarrow = 0;
+
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        switch (aIter.getToken())
+        {
+            case XML_WIDTH:
+                if ( ParseMathMLAttributeLengthValue(sValue.trim(), aLV) <= 0 ||
+                     !lcl_CountBlanks(aLV, &nWide, &nNarrow) )
+                    SAL_WARN("starmath", "ignore mspace's width: " << sValue);
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                break;
+        }
+    }
+    SmToken aToken;
+    aToken.eType = TBLANK;
+    aToken.cMathChar = '\0';
+    aToken.nGroup = TG::Blank;
+    aToken.nLevel = 5;
+    std::unique_ptr<SmBlankNode> pBlank(new SmBlankNode(aToken));
+    if (nWide > 0)
+        pBlank->IncreaseBy(aToken, nWide);
+    if (nNarrow > 0)
+    {
+        aToken.eType = TSBLANK;
+        pBlank->IncreaseBy(aToken, nNarrow);
+    }
+    GetSmImport().GetNodeStack().push_front(std::move(pBlank));
+}
+
+namespace {
+
+class SmXMLSubContext_Impl : public SmXMLRowContext_Impl
+{
+protected:
+    void GenericEndElement(SmTokenType eType,SmSubSup aSubSup);
+
+public:
+    SmXMLSubContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 ) override
+    {
+        GenericEndElement(TRSUB,RSUB);
+    }
+};
+
+}
+
+void SmXMLSubContext_Impl::GenericEndElement(SmTokenType eType, SmSubSup eSubSup)
+{
+    /*The <msub> element requires exactly 2 arguments.*/
+    const bool bNodeCheck = GetSmImport().GetNodeStack().size() - nElementCount == 2;
+    OSL_ENSURE( bNodeCheck, "Sub has not two arguments" );
+    if (!bNodeCheck)
+        return;
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.eType = eType;
+    std::unique_ptr<SmSubSupNode> pNode(new SmSubSupNode(aToken));
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    // initialize subnodes array
+    SmNodeArray  aSubNodes;
+    aSubNodes.resize(1 + SUBSUP_NUM_ENTRIES);
+    for (size_t i = 1;  i < aSubNodes.size();  i++)
+        aSubNodes[i] = nullptr;
+
+    aSubNodes[eSubSup+1] = popOrZero(rNodeStack).release();
+    aSubNodes[0] = popOrZero(rNodeStack).release();
+    pNode->SetSubNodes(std::move(aSubNodes));
+    rNodeStack.push_front(std::move(pNode));
+}
+
+namespace {
+
+class SmXMLSupContext_Impl : public SmXMLSubContext_Impl
+{
+public:
+    SmXMLSupContext_Impl(SmXMLImport &rImport)
+        : SmXMLSubContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 ) override
+    {
+        GenericEndElement(TRSUP,RSUP);
+    }
+};
+
+
+class SmXMLSubSupContext_Impl : public SmXMLRowContext_Impl
+{
+protected:
+    void GenericEndElement(SmTokenType eType, SmSubSup aSub,SmSubSup aSup);
+
+public:
+    SmXMLSubSupContext_Impl(SmXMLImport &rImport)
+        : SmXMLRowContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 ) override
+    {
+        GenericEndElement(TRSUB,RSUB,RSUP);
+    }
+};
+
+}
+
+void SmXMLSubSupContext_Impl::GenericEndElement(SmTokenType eType,
+        SmSubSup aSub,SmSubSup aSup)
+{
+    /*The <msub> element requires exactly 3 arguments.*/
+    const bool bNodeCheck = GetSmImport().GetNodeStack().size() - nElementCount == 3;
+    OSL_ENSURE( bNodeCheck, "SubSup has not three arguments" );
+    if (!bNodeCheck)
+        return;
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.eType = eType;
+    std::unique_ptr<SmSubSupNode> pNode(new SmSubSupNode(aToken));
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    // initialize subnodes array
+    SmNodeArray  aSubNodes;
+    aSubNodes.resize(1 + SUBSUP_NUM_ENTRIES);
+    for (size_t i = 1;  i < aSubNodes.size();  i++)
+        aSubNodes[i] = nullptr;
+
+    aSubNodes[aSup+1] = popOrZero(rNodeStack).release();
+    aSubNodes[aSub+1] = popOrZero(rNodeStack).release();
+    aSubNodes[0] =  popOrZero(rNodeStack).release();
+    pNode->SetSubNodes(std::move(aSubNodes));
+    rNodeStack.push_front(std::move(pNode));
+}
+
+namespace {
+
+class SmXMLUnderContext_Impl : public SmXMLSubContext_Impl
+{
+protected:
+    sal_Int16 nAttrCount;
+
+public:
+    SmXMLUnderContext_Impl(SmXMLImport &rImport)
+        : SmXMLSubContext_Impl(rImport)
+        , nAttrCount( 0 )
+        {}
+
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList > &xAttrList ) override;
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+    void HandleAccent();
+};
+
+}
+
+void SmXMLUnderContext_Impl::startFastElement(sal_Int32 /*nElement*/, const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    sax_fastparser::FastAttributeList& rAttribList =
+        sax_fastparser::castToFastAttributeList( xAttrList );
+    nAttrCount = rAttribList.getFastAttributeTokens().size();
+}
+
+void SmXMLUnderContext_Impl::HandleAccent()
+{
+    const bool bNodeCheck = GetSmImport().GetNodeStack().size() - nElementCount == 2;
+    OSL_ENSURE( bNodeCheck, "Sub has not two arguments" );
+    if (!bNodeCheck)
+        return;
+
+    /*Just one special case for the underline thing*/
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    std::unique_ptr<SmNode> pTest = popOrZero(rNodeStack);
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.eType = TUNDERLINE;
+
+    std::unique_ptr<SmNode> pFirst;
+    std::unique_ptr<SmStructureNode> pNode(new SmAttributNode(aToken));
+    if ((pTest->GetToken().cMathChar & 0x0FFF) == 0x0332)
+    {
+        pFirst.reset(new SmRectangleNode(aToken));
+    }
+    else
+        pFirst = std::move(pTest);
+
+    std::unique_ptr<SmNode> pSecond = popOrZero(rNodeStack);
+    pNode->SetSubNodes(std::move(pFirst), std::move(pSecond));
+    pNode->SetScaleMode(SmScaleMode::Width);
+    rNodeStack.push_front(std::move(pNode));
+}
+
+
+void SmXMLUnderContext_Impl::endFastElement(sal_Int32 )
+{
+    if (!nAttrCount)
+        GenericEndElement(TCSUB,CSUB);
+    else
+        HandleAccent();
+}
+
+namespace {
+
+class SmXMLOverContext_Impl : public SmXMLSubContext_Impl
+{
+protected:
+    sal_Int16 nAttrCount;
+
+public:
+    SmXMLOverContext_Impl(SmXMLImport &rImport)
+        : SmXMLSubContext_Impl(rImport), nAttrCount(0) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList > &xAttrList ) override;
+    void HandleAccent();
+};
+
+}
+
+void SmXMLOverContext_Impl::startFastElement(sal_Int32 /*nElement*/, const uno::Reference<
+    xml::sax::XFastAttributeList > & xAttrList )
+{
+    sax_fastparser::FastAttributeList& rAttribList =
+        sax_fastparser::castToFastAttributeList( xAttrList );
+    nAttrCount = rAttribList.getFastAttributeTokens().size();
+}
+
+
+void SmXMLOverContext_Impl::endFastElement(sal_Int32 )
+{
+    if (!nAttrCount)
+        GenericEndElement(TCSUP,CSUP);
+    else
+        HandleAccent();
+}
+
+
+void SmXMLOverContext_Impl::HandleAccent()
+{
+    const bool bNodeCheck = GetSmImport().GetNodeStack().size() - nElementCount == 2;
+    OSL_ENSURE (bNodeCheck, "Sub has not two arguments");
+    if (!bNodeCheck)
+        return;
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.eType = TACUTE;
+
+    std::unique_ptr<SmAttributNode> pNode(new SmAttributNode(aToken));
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    std::unique_ptr<SmNode> pFirst = popOrZero(rNodeStack);
+    std::unique_ptr<SmNode> pSecond = popOrZero(rNodeStack);
+    pNode->SetSubNodes(std::move(pFirst), std::move(pSecond));
+    pNode->SetScaleMode(SmScaleMode::Width);
+    rNodeStack.push_front(std::move(pNode));
+
+}
+
+namespace {
+
+class SmXMLUnderOverContext_Impl : public SmXMLSubSupContext_Impl
+{
+public:
+    SmXMLUnderOverContext_Impl(SmXMLImport &rImport)
+        : SmXMLSubSupContext_Impl(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 ) override
+    {
+        GenericEndElement(TCSUB,CSUB,CSUP);
+    }
+};
+
+
+class SmXMLMultiScriptsContext_Impl : public SmXMLSubSupContext_Impl
+{
+    bool bHasPrescripts;
+
+    void ProcessSubSupPairs(bool bIsPrescript);
+
+public:
+    SmXMLMultiScriptsContext_Impl(SmXMLImport &rImport) :
+        SmXMLSubSupContext_Impl(rImport),
+        bHasPrescripts(false) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+    virtual uno::Reference< xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+};
+
+
+class SmXMLNoneContext_Impl : public SmXMLImportContext
+{
+public:
+    SmXMLNoneContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport) {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+}
+
+void SmXMLNoneContext_Impl::endFastElement(sal_Int32 )
+{
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.aText.clear();
+    aToken.nLevel = 5;
+    aToken.eType = TIDENT;
+    GetSmImport().GetNodeStack().push_front(
+        std::make_unique<SmTextNode>(aToken,FNT_VARIABLE));
+}
+
+namespace {
+
+class SmXMLPrescriptsContext_Impl : public SmXMLImportContext
+{
+public:
+    SmXMLPrescriptsContext_Impl(SmXMLImport &rImport)
+        : SmXMLImportContext(rImport) {}
+};
+
+
+class SmXMLTableRowContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    SmXMLTableRowContext_Impl(SmXMLImport &rImport) :
+        SmXMLRowContext_Impl(rImport)
+        {}
+
+    virtual uno::Reference< xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+};
+
+
+class SmXMLTableContext_Impl : public SmXMLTableRowContext_Impl
+{
+public:
+    SmXMLTableContext_Impl(SmXMLImport &rImport) :
+        SmXMLTableRowContext_Impl(rImport)
+        {}
+
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+    virtual uno::Reference< xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList ) override;
+};
+
+
+class SmXMLTableCellContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    SmXMLTableCellContext_Impl(SmXMLImport &rImport) :
+        SmXMLRowContext_Impl(rImport)
+        {}
+};
+
+
+class SmXMLAlignGroupContext_Impl : public SmXMLRowContext_Impl
+{
+public:
+    SmXMLAlignGroupContext_Impl(SmXMLImport &rImport) :
+        SmXMLRowContext_Impl(rImport)
+        {}
+
+    /*Don't do anything with alignment for now*/
+    void SAL_CALL endFastElement(sal_Int32 ) override
+    {
+    }
+};
+
+
+class SmXMLActionContext_Impl : public SmXMLRowContext_Impl
+{
+    size_t mnSelection; // 1-based
+
+public:
+    SmXMLActionContext_Impl(SmXMLImport &rImport) :
+        SmXMLRowContext_Impl(rImport)
+      , mnSelection(1)
+        {}
+
+    void SAL_CALL startFastElement(sal_Int32 nElement, const uno::Reference<xml::sax::XFastAttributeList> &xAttrList) override;
+    void SAL_CALL endFastElement(sal_Int32 nElement) override;
+};
+
+
+// NB: virtually inherit so we can multiply inherit properly
+//     in SmXMLFlatDocContext_Impl
+class SmXMLOfficeContext_Impl : public virtual SvXMLImportContext
+{
+public:
+    SmXMLOfficeContext_Impl( SmXMLImport &rImport )
+        : SvXMLImportContext(rImport) {}
+
+    virtual void SAL_CALL characters( const OUString& /*aChars*/ ) override {}
+
+    virtual void SAL_CALL startFastElement( sal_Int32 /*nElement*/,
+        const css::uno::Reference< css::xml::sax::XFastAttributeList >& /*xAttrList*/ ) override {}
+
+    virtual void SAL_CALL endFastElement( sal_Int32 /*nElement*/ ) override {}
+
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList ) override;
+};
+
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLOfficeContext_Impl::createFastChildContext(sal_Int32 nElement,
+        const uno::Reference< xml::sax::XFastAttributeList > &/*xAttrList*/)
+{
+    if ( nElement == XML_ELEMENT(OFFICE, XML_META) )
+    {
+        SAL_WARN("starmath", "XML_TOK_DOC_META: should not have come here, maybe document is invalid?");
+    }
+    else if ( nElement == XML_ELEMENT(OFFICE, XML_SETTINGS) )
+    {
+        return new XMLDocumentSettingsContext( GetImport() );
+    }
+    return nullptr;
+}
+
+namespace {
+
+// context for flat file xml format
+class SmXMLFlatDocContext_Impl
+    : public SmXMLOfficeContext_Impl, public SvXMLMetaDocumentContext
+{
+public:
+    SmXMLFlatDocContext_Impl( SmXMLImport& i_rImport,
+        const uno::Reference<document::XDocumentProperties>& i_xDocProps);
+
+    virtual void SAL_CALL characters( const OUString& aChars ) override;
+
+    virtual void SAL_CALL startFastElement( sal_Int32 nElement,
+        const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList ) override;
+
+    virtual void SAL_CALL endFastElement( sal_Int32 nElement ) override;
+
+    virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
+        sal_Int32 nElement, const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList ) override;
+};
+
+}
+
+SmXMLFlatDocContext_Impl::SmXMLFlatDocContext_Impl( SmXMLImport& i_rImport,
+        const uno::Reference<document::XDocumentProperties>& i_xDocProps) :
+    SvXMLImportContext(i_rImport),
+    SmXMLOfficeContext_Impl(i_rImport),
+    SvXMLMetaDocumentContext(i_rImport, i_xDocProps)
+{
+}
+
+void SAL_CALL SmXMLFlatDocContext_Impl::startFastElement( sal_Int32 nElement,
+    const uno::Reference< xml::sax::XFastAttributeList >& xAttrList )
+{
+    SvXMLMetaDocumentContext::startFastElement(nElement, xAttrList);
+}
+
+void SAL_CALL SmXMLFlatDocContext_Impl::endFastElement( sal_Int32 nElement )
+{
+    SvXMLMetaDocumentContext::endFastElement(nElement);
+}
+
+void SAL_CALL SmXMLFlatDocContext_Impl::characters( const OUString& rChars )
+{
+    SvXMLMetaDocumentContext::characters(rChars);
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SAL_CALL SmXMLFlatDocContext_Impl::createFastChildContext(
+    sal_Int32 nElement, const uno::Reference< xml::sax::XFastAttributeList >& xAttrList )
+{
+    // behave like meta base class iff we encounter office:meta
+    if ( nElement == XML_ELEMENT(OFFICE, XML_META) )
+    {
+        return SvXMLMetaDocumentContext::createFastChildContext(
+                    nElement, xAttrList );
+    }
+    else
+    {
+        return SmXMLOfficeContext_Impl::createFastChildContext(
+                    nElement, xAttrList );
+    }
+}
+
+static const SvXMLTokenMapEntry aColorTokenMap[] =
+{
+    { XML_NAMESPACE_MATH,   XML_BLACK,        TBLACK},
+    { XML_NAMESPACE_MATH,   XML_WHITE,        TWHITE},
+    { XML_NAMESPACE_MATH,   XML_RED,          TRED},
+    { XML_NAMESPACE_MATH,   XML_GREEN,        TGREEN},
+    { XML_NAMESPACE_MATH,   XML_BLUE,         TBLUE},
+    { XML_NAMESPACE_MATH,   XML_AQUA,         TAQUA},
+    { XML_NAMESPACE_MATH,   XML_FUCHSIA,      TFUCHSIA},
+    { XML_NAMESPACE_MATH,   XML_YELLOW,       TYELLOW},
+    { XML_NAMESPACE_MATH,   XML_NAVY,         TNAVY},
+    { XML_NAMESPACE_MATH,   XML_TEAL,         TTEAL},
+    { XML_NAMESPACE_MATH,   XML_MAROON,       TMAROON},
+    { XML_NAMESPACE_MATH,   XML_PURPLE,       TPURPLE},
+    { XML_NAMESPACE_MATH,   XML_OLIVE,        TOLIVE},
+    { XML_NAMESPACE_MATH,   XML_GRAY,         TGRAY},
+    { XML_NAMESPACE_MATH,   XML_SILVER,       TSILVER},
+    { XML_NAMESPACE_MATH,   XML_LIME,         TLIME},
+    XML_TOKEN_MAP_END
+};
+
+
+const SvXMLTokenMap& SmXMLImport::GetColorTokenMap()
+{
+    if (!pColorTokenMap)
+        pColorTokenMap.reset(new SvXMLTokenMap(aColorTokenMap));
+    return *pColorTokenMap;
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLDocContext_Impl::createFastChildContext(
+    sal_Int32 nElement,
+    const uno::Reference<xml::sax::XFastAttributeList>& /*xAttrList*/)
+{
+    uno::Reference< xml::sax::XFastContextHandler > xContext;
+
+    switch(nElement)
+    {
+        //Consider semantics a dummy except for any starmath annotations
+        case XML_ELEMENT(MATH, XML_SEMANTICS):
+            xContext = new SmXMLRowContext_Impl(GetSmImport());
+            break;
+        /*General Layout Schemata*/
+        case XML_ELEMENT(MATH, XML_MROW):
+            xContext = new SmXMLRowContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MENCLOSE):
+            xContext = new SmXMLEncloseContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MFRAC):
+            xContext = new SmXMLFracContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MSQRT):
+            xContext = new SmXMLSqrtContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MROOT):
+            xContext = new SmXMLRootContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MSTYLE):
+            xContext = new SmXMLStyleContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MERROR):
+            xContext = new SmXMLErrorContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MPADDED):
+            xContext = new SmXMLPaddedContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MPHANTOM):
+            xContext = new SmXMLPhantomContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MFENCED):
+            xContext = new SmXMLFencedContext_Impl(GetSmImport());
+            break;
+        /*Script and Limit Schemata*/
+        case XML_ELEMENT(MATH, XML_MSUB):
+            xContext = new SmXMLSubContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MSUP):
+            xContext = new SmXMLSupContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MSUBSUP):
+            xContext = new SmXMLSubSupContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MUNDER):
+            xContext = new SmXMLUnderContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MOVER):
+            xContext = new SmXMLOverContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MUNDEROVER):
+            xContext = new SmXMLUnderOverContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MMULTISCRIPTS):
+            xContext = new SmXMLMultiScriptsContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MTABLE):
+            xContext = new SmXMLTableContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MACTION):
+            xContext = new SmXMLActionContext_Impl(GetSmImport());
+            break;
+        default:
+            /*Basically there's an implicit mrow around certain bare
+             *elements, use a RowContext to see if this is one of
+             *those ones*/
+            rtl::Reference<SmXMLRowContext_Impl> aTempContext(new SmXMLRowContext_Impl(GetSmImport()));
+
+            xContext = aTempContext->StrictCreateChildContext(nElement);
+            break;
+    }
+    return xContext;
+}
+
+void SmXMLDocContext_Impl::endFastElement(sal_Int32)
+{
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    std::unique_ptr<SmNode> pContextNode = popOrZero(rNodeStack);
+
+    SmToken aDummy;
+    std::unique_ptr<SmStructureNode> pSNode(new SmLineNode(aDummy));
+    pSNode->SetSubNodes(std::move(pContextNode), nullptr);
+    rNodeStack.push_front(std::move(pSNode));
+
+    SmNodeArray  LineArray;
+    auto n = rNodeStack.size();
+    LineArray.resize(n);
+    for (size_t j = 0; j < n; j++)
+    {
+        auto pNode = std::move(rNodeStack.front());
+        rNodeStack.pop_front();
+        LineArray[n - (j + 1)] = pNode.release();
+    }
+    std::unique_ptr<SmStructureNode> pSNode2(new SmTableNode(aDummy));
+    pSNode2->SetSubNodes(std::move(LineArray));
+    rNodeStack.push_front(std::move(pSNode2));
+}
+
+void SmXMLFracContext_Impl::endFastElement(sal_Int32 )
+{
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    const bool bNodeCheck = rNodeStack.size() - nElementCount == 2;
+    OSL_ENSURE( bNodeCheck, "Fraction (mfrac) tag is missing component" );
+    if (!bNodeCheck)
+        return;
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.eType = TOVER;
+    std::unique_ptr<SmStructureNode> pSNode(new SmBinVerNode(aToken));
+    std::unique_ptr<SmNode> pOper(new SmRectangleNode(aToken));
+    std::unique_ptr<SmNode> pSecond = popOrZero(rNodeStack);
+    std::unique_ptr<SmNode> pFirst = popOrZero(rNodeStack);
+    pSNode->SetSubNodes(std::move(pFirst), std::move(pOper), std::move(pSecond));
+    rNodeStack.push_front(std::move(pSNode));
+}
+
+void SmXMLRootContext_Impl::endFastElement(sal_Int32 )
+{
+    /*The <mroot> element requires exactly 2 arguments.*/
+    const bool bNodeCheck = GetSmImport().GetNodeStack().size() - nElementCount == 2;
+    OSL_ENSURE( bNodeCheck, "Root tag is missing component");
+    if (!bNodeCheck)
+        return;
+
+    SmToken aToken;
+    aToken.cMathChar = MS_SQRT;  //Temporary: alert, based on StarSymbol font
+    aToken.eType = TNROOT;
+    std::unique_ptr<SmStructureNode> pSNode(new SmRootNode(aToken));
+    std::unique_ptr<SmNode> pOper(new SmRootSymbolNode(aToken));
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    std::unique_ptr<SmNode> pIndex = popOrZero(rNodeStack);
+    std::unique_ptr<SmNode> pBase = popOrZero(rNodeStack);
+    pSNode->SetSubNodes(std::move(pIndex), std::move(pOper), std::move(pBase));
+    rNodeStack.push_front(std::move(pSNode));
+}
+
+void SmXMLSqrtContext_Impl::endFastElement(sal_Int32 nElement)
+{
+    /*
+    <msqrt> accepts any number of arguments; if this number is not 1, its
+    contents are treated as a single "inferred <mrow>" containing its
+    arguments
+    */
+    if (GetSmImport().GetNodeStack().size() - nElementCount != 1)
+        SmXMLRowContext_Impl::endFastElement(nElement);
+
+    SmToken aToken;
+    aToken.cMathChar = MS_SQRT;  //Temporary: alert, based on StarSymbol font
+    aToken.eType = TSQRT;
+    std::unique_ptr<SmStructureNode> pSNode(new SmRootNode(aToken));
+    std::unique_ptr<SmNode> pOper(new SmRootSymbolNode(aToken));
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    pSNode->SetSubNodes(nullptr, std::move(pOper), popOrZero(rNodeStack));
+    rNodeStack.push_front(std::move(pSNode));
+}
+
+void SmXMLRowContext_Impl::endFastElement(sal_Int32 )
+{
+    SmNodeArray aRelationArray;
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    if (rNodeStack.size() > nElementCount)
+    {
+        auto nSize = rNodeStack.size() - nElementCount;
+
+        aRelationArray.resize(nSize);
+        for (auto j=nSize;j > 0;j--)
+        {
+            auto pNode = std::move(rNodeStack.front());
+            rNodeStack.pop_front();
+            aRelationArray[j-1] = pNode.release();
+        }
+
+        //If the first or last element is an operator with stretchyness
+        //set then we must create a brace node here from those elements,
+        //removing the stretchness from the operators and applying it to
+        //ourselves, and creating the appropriate dummy StarMath none bracket
+        //to balance the arrangement
+        if (((aRelationArray[0]->GetScaleMode() == SmScaleMode::Height)
+            && (aRelationArray[0]->GetType() == SmNodeType::Math))
+        || ((aRelationArray[nSize-1]->GetScaleMode() == SmScaleMode::Height)
+            && (aRelationArray[nSize-1]->GetType() == SmNodeType::Math)))
+        {
+            SmToken aToken;
+            aToken.cMathChar = '\0';
+            aToken.nLevel = 5;
+
+            int nLeft=0,nRight=0;
+            if ((aRelationArray[0]->GetScaleMode() == SmScaleMode::Height)
+                && (aRelationArray[0]->GetType() == SmNodeType::Math))
+            {
+                aToken = aRelationArray[0]->GetToken();
+                nLeft=1;
+            }
+            else
+                aToken.cMathChar = '\0';
+
+            aToken.eType = TLPARENT;
+            std::unique_ptr<SmNode> pLeft(new SmMathSymbolNode(aToken));
+
+            if ((aRelationArray[nSize-1]->GetScaleMode() == SmScaleMode::Height)
+                && (aRelationArray[nSize-1]->GetType() == SmNodeType::Math))
+            {
+                aToken = aRelationArray[nSize-1]->GetToken();
+                nRight=1;
+            }
+            else
+                aToken.cMathChar = '\0';
+
+            aToken.eType = TRPARENT;
+            std::unique_ptr<SmNode> pRight(new SmMathSymbolNode(aToken));
+
+            SmNodeArray aRelationArray2;
+
+            //!! nSize-nLeft-nRight may be < 0 !!
+            int nRelArrSize = nSize-nLeft-nRight;
+            if (nRelArrSize > 0)
+            {
+                aRelationArray2.resize(nRelArrSize);
+                for (int i=0;i < nRelArrSize;i++)
+                {
+                    aRelationArray2[i] = aRelationArray[i+nLeft];
+                    aRelationArray[i+nLeft] = nullptr;
+                }
+            }
+
+            SmToken aDummy;
+            std::unique_ptr<SmStructureNode> pSNode(new SmBraceNode(aToken));
+            std::unique_ptr<SmStructureNode> pBody(new SmExpressionNode(aDummy));
+            pBody->SetSubNodes(std::move(aRelationArray2));
+
+            pSNode->SetSubNodes(std::move(pLeft), std::move(pBody), std::move(pRight));
+            pSNode->SetScaleMode(SmScaleMode::Height);
+            rNodeStack.push_front(std::move(pSNode));
+
+            for (auto a : aRelationArray)
+                delete a;
+
+            return;
+        }
+    }
+    else
+    {
+        // The elements msqrt, mstyle, merror, menclose, mpadded, mphantom, mtd, and math
+        // treat their content as a single inferred mrow in case their content is empty.
+        // Here an empty group {} is used to catch those cases and transform them without error
+        // to StarMath.
+        aRelationArray.resize(2);
+        SmToken aToken;
+        aToken.cMathChar = MS_LBRACE;
+        aToken.nLevel = 5;
+        aToken.eType = TLGROUP;
+        aToken.aText = "{";
+        aRelationArray[0] = new SmLineNode(aToken);
+
+        aToken.cMathChar = MS_RBRACE;
+        aToken.nLevel = 0;
+        aToken.eType = TRGROUP;
+        aToken.aText = "}";
+        aRelationArray[1] = new SmLineNode(aToken);
+    }
+
+    SmToken aDummy;
+    std::unique_ptr<SmStructureNode> pSNode(new SmExpressionNode(aDummy));
+    pSNode->SetSubNodes(std::move(aRelationArray));
+    rNodeStack.push_front(std::move(pSNode));
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLRowContext_Impl::StrictCreateChildContext(
+    sal_Int32 nElement)
+{
+    uno::Reference< xml::sax::XFastContextHandler > pContext;
+
+    switch(nElement)
+    {
+        /*Note that these should accept malignmark subelements, but do not*/
+        case XML_ELEMENT(MATH, XML_MN):
+            pContext = new SmXMLNumberContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MI):
+            pContext = new SmXMLIdentifierContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MO):
+            pContext = new SmXMLOperatorContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MTEXT):
+            pContext = new SmXMLTextContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MSPACE):
+            pContext = new SmXMLSpaceContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_MS):
+            pContext = new SmXMLStringContext_Impl(GetSmImport());
+            break;
+
+        /*Note: The maligngroup should only be seen when the row
+         * (or descendants) are in a table*/
+        case XML_ELEMENT(MATH, XML_MALIGNGROUP):
+            pContext = new SmXMLAlignGroupContext_Impl(GetSmImport());
+            break;
+
+        case XML_ELEMENT(MATH, XML_ANNOTATION):
+            pContext = new SmXMLAnnotationContext_Impl(GetSmImport());
+            break;
+
+        default:
+            break;
+    }
+    return pContext;
+}
+
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLRowContext_Impl::createFastChildContext(
+    sal_Int32 nElement,
+    const uno::Reference<xml::sax::XFastAttributeList>& xAttrList)
+{
+    uno::Reference< xml::sax::XFastContextHandler > xContext = StrictCreateChildContext(nElement);
+
+    if (!xContext)
+    {
+        //Hmm, unrecognized for this level, check to see if its
+        //an element that can have an implicit schema around it
+        xContext = SmXMLDocContext_Impl::createFastChildContext(nElement, xAttrList);
+    }
+    return xContext;
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLMultiScriptsContext_Impl::createFastChildContext(
+    sal_Int32 nElement,
+    const uno::Reference<xml::sax::XFastAttributeList>& xAttrList)
+{
+    uno::Reference< xml::sax::XFastContextHandler > xContext;
+
+    switch(nElement)
+    {
+        case XML_ELEMENT(MATH, XML_MPRESCRIPTS):
+            bHasPrescripts = true;
+            ProcessSubSupPairs(false);
+            xContext = new SmXMLPrescriptsContext_Impl(GetSmImport());
+            break;
+        case XML_ELEMENT(MATH, XML_NONE):
+            xContext = new SmXMLNoneContext_Impl(GetSmImport());
+            break;
+        default:
+            xContext = SmXMLRowContext_Impl::createFastChildContext(nElement,xAttrList);
+            break;
+    }
+    return xContext;
+}
+
+void SmXMLMultiScriptsContext_Impl::ProcessSubSupPairs(bool bIsPrescript)
+{
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+
+    if (rNodeStack.size() <= nElementCount)
+        return;
+
+    auto nCount = rNodeStack.size() - nElementCount - 1;
+    if (nCount == 0)
+        return;
+
+    if (nCount % 2 == 0)
+    {
+        SmToken aToken;
+        aToken.cMathChar = '\0';
+        aToken.eType = bIsPrescript ? TLSUB : TRSUB;
+
+        SmNodeStack aReverseStack;
+        for (size_t i = 0; i < nCount + 1; i++)
+        {
+            auto pNode = std::move(rNodeStack.front());
+            rNodeStack.pop_front();
+            aReverseStack.push_front(std::move(pNode));
+        }
+
+        SmSubSup eSub = bIsPrescript ? LSUB : RSUB;
+        SmSubSup eSup = bIsPrescript ? LSUP : RSUP;
+
+        for (size_t i = 0; i < nCount; i += 2)
+        {
+            std::unique_ptr<SmSubSupNode> pNode(new SmSubSupNode(aToken));
+
+            // initialize subnodes array
+            SmNodeArray aSubNodes(1 + SUBSUP_NUM_ENTRIES);
+
+            /*On each loop the base and its sub sup pair becomes the
+             base for the next loop to which the next sub sup pair is
+             attached, i.e. wheels within wheels*/
+            aSubNodes[0] = popOrZero(aReverseStack).release();
+
+            std::unique_ptr<SmNode> pScriptNode = popOrZero(aReverseStack);
+
+            if (pScriptNode && ((pScriptNode->GetToken().eType != TIDENT) ||
+                (!pScriptNode->GetToken().aText.isEmpty())))
+                aSubNodes[eSub+1] = pScriptNode.release();
+            pScriptNode = popOrZero(aReverseStack);
+            if (pScriptNode && ((pScriptNode->GetToken().eType != TIDENT) ||
+                (!pScriptNode->GetToken().aText.isEmpty())))
+                aSubNodes[eSup+1] = pScriptNode.release();
+
+            pNode->SetSubNodes(std::move(aSubNodes));
+            aReverseStack.push_front(std::move(pNode));
+        }
+        assert(!aReverseStack.empty());
+        auto pNode = std::move(aReverseStack.front());
+        aReverseStack.pop_front();
+        rNodeStack.push_front(std::move(pNode));
+    }
+    else
+    {
+        // Ignore odd number of elements.
+        for (size_t i = 0; i < nCount; i++)
+        {
+            rNodeStack.pop_front();
+        }
+    }
+}
+
+
+void SmXMLTableContext_Impl::endFastElement(sal_Int32 )
+{
+    SmNodeArray aExpressionArray;
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    SmNodeStack aReverseStack;
+    aExpressionArray.resize(rNodeStack.size()-nElementCount);
+
+    size_t nRows = rNodeStack.size()-nElementCount;
+    size_t nCols = 0;
+
+    for (size_t i = nRows; i > 0; --i)
+    {
+        SmNode* pArray = rNodeStack.front().release();
+        rNodeStack.pop_front();
+        if (pArray->GetNumSubNodes() == 0)
+        {
+            //This is a little tricky, it is possible that there was
+            //be elements that were not inside a <mtd> pair, in which
+            //case they will not be in a row, i.e. they will not have
+            //SubNodes, so we have to wait until here before we can
+            //resolve the situation. Implicit surrounding tags are
+            //surprisingly difficult to get right within this
+            //architecture
+
+            SmNodeArray aRelationArray;
+            aRelationArray.resize(1);
+            aRelationArray[0] = pArray;
+            SmToken aDummy;
+            SmExpressionNode* pExprNode = new SmExpressionNode(aDummy);
+            pExprNode->SetSubNodes(std::move(aRelationArray));
+            pArray = pExprNode;
+        }
+
+        nCols = std::max(nCols, pArray->GetNumSubNodes());
+        aReverseStack.push_front(std::unique_ptr<SmNode>(pArray));
+    }
+    if (nCols > SAL_MAX_UINT16)
+        throw std::range_error("column limit");
+    if (nRows > SAL_MAX_UINT16)
+        throw std::range_error("row limit");
+    aExpressionArray.resize(nCols*nRows);
+    size_t j=0;
+    for (auto & elem : aReverseStack)
+    {
+        std::unique_ptr<SmStructureNode> xArray(static_cast<SmStructureNode*>(elem.release()));
+        for (size_t i = 0; i < xArray->GetNumSubNodes(); ++i)
+            aExpressionArray[j++] = xArray->GetSubNode(i);
+        xArray->ClearSubNodes();
+    }
+    aReverseStack.clear();
+
+    SmToken aToken;
+    aToken.cMathChar = '\0';
+    aToken.eType = TMATRIX;
+    std::unique_ptr<SmMatrixNode> pSNode(new SmMatrixNode(aToken));
+    pSNode->SetSubNodes(std::move(aExpressionArray));
+    pSNode->SetRowCol(nRows, nCols);
+    rNodeStack.push_front(std::move(pSNode));
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLTableRowContext_Impl::createFastChildContext(
+    sal_Int32 nElement,
+    const uno::Reference<xml::sax::XFastAttributeList>& xAttrList)
+{
+    uno::Reference< xml::sax::XFastContextHandler > xContext;
+
+    switch(nElement)
+    {
+        case XML_ELEMENT(MATH, XML_MTD):
+            xContext = new SmXMLTableCellContext_Impl(GetSmImport());
+            break;
+        default:
+            xContext = SmXMLRowContext_Impl::createFastChildContext(nElement,xAttrList);
+            break;
+    }
+    return xContext;
+}
+
+uno::Reference< xml::sax::XFastContextHandler > SmXMLTableContext_Impl::createFastChildContext(
+    sal_Int32 nElement,
+    const uno::Reference<xml::sax::XFastAttributeList>& xAttrList)
+{
+    uno::Reference< xml::sax::XFastContextHandler > xContext;
+
+    switch(nElement)
+    {
+        case XML_ELEMENT(MATH, XML_MTR):
+            xContext = new SmXMLTableRowContext_Impl(GetSmImport());
+            break;
+        default:
+            xContext = SmXMLTableRowContext_Impl::createFastChildContext(nElement, xAttrList);
+            break;
+    }
+    return xContext;
+}
+
+void SmXMLMultiScriptsContext_Impl::endFastElement(sal_Int32 )
+{
+    ProcessSubSupPairs(bHasPrescripts);
+}
+
+void SmXMLActionContext_Impl::startFastElement(sal_Int32 /*nElement*/, const uno::Reference<xml::sax::XFastAttributeList> & xAttrList)
+{
+    for (auto &aIter : sax_fastparser::castToFastAttributeList( xAttrList ))
+    {
+        OUString sValue = aIter.toString();
+        switch(aIter.getToken())
+        {
+            case XML_SELECTION:
+                {
+                    sal_uInt32 n = sValue.toUInt32();
+                    if (n > 0) mnSelection = static_cast<size_t>(n);
+                }
+                break;
+            default:
+                SAL_WARN("starmath", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(aIter.getToken()) << "=" << aIter.toString());
+                break;
+        }
+    }
+}
+
+void SmXMLActionContext_Impl::endFastElement(sal_Int32 )
+{
+    SmNodeStack &rNodeStack = GetSmImport().GetNodeStack();
+    auto nSize = rNodeStack.size();
+    if (nSize <= nElementCount) {
+        // not compliant to maction's specification, e.g., no subexpressions
+        return;
+    }
+    assert(mnSelection > 0);
+    if (nSize < nElementCount + mnSelection) {
+        // No selected subexpression exists, which is a MathML error;
+        // fallback to selecting the first
+        mnSelection = 1;
+    }
+    assert(nSize >= nElementCount + mnSelection);
+    for (auto i=nSize-(nElementCount+mnSelection); i > 0; i--)
+    {
+        rNodeStack.pop_front();
+    }
+    auto pSelected = std::move(rNodeStack.front());
+    rNodeStack.pop_front();
+    for (auto i=rNodeStack.size()-nElementCount; i > 0; i--)
+    {
+        rNodeStack.pop_front();
+    }
+    rNodeStack.push_front(std::move(pSelected));
+}
+
+SvXMLImportContext *SmXMLImport::CreateFastContext(sal_Int32 nElement,
+    const uno::Reference <xml::sax::XFastAttributeList> & /*xAttrList*/)
+{
+    SvXMLImportContext *pContext = nullptr;
+
+    switch (nElement)
+    {
+        case XML_ELEMENT( OFFICE, XML_DOCUMENT ):
+        case XML_ELEMENT( OFFICE, XML_DOCUMENT_META ):
+        {
+            uno::Reference<document::XDocumentPropertiesSupplier> xDPS(
+                GetModel(), uno::UNO_QUERY_THROW);
+            pContext = ( (nElement & TOKEN_MASK) == XML_DOCUMENT_META )
+                ? new SvXMLMetaDocumentContext( *this,
+                        xDPS->getDocumentProperties() )
+                // flat OpenDocument file format -- this has not been tested...
+                : new SmXMLFlatDocContext_Impl( *this,
+                            xDPS->getDocumentProperties() );
+        }
+        break;
+        default:
+            if (IsTokenInNamespace(nElement, XML_NAMESPACE_OFFICE))
+                pContext = new SmXMLOfficeContext_Impl(*this);
+            else
+                pContext = new SmXMLDocContext_Impl(*this);
+    }
+    return pContext;
+}
+
+SmXMLImport::~SmXMLImport() throw ()
+{
+    cleanup();
+}
+
+void SmXMLImport::SetViewSettings(const Sequence<PropertyValue>& aViewProps)
+{
+    uno::Reference <frame::XModel> xModel = GetModel();
+    if ( !xModel.is() )
+        return;
+
+    SmModel *pModel = comphelper::getUnoTunnelImplementation<SmModel>(xModel);
+
+    if ( !pModel )
+        return;
+
+    SmDocShell *pDocShell =
+        static_cast<SmDocShell*>(pModel->GetObjectShell());
+    if ( !pDocShell )
+        return;
+
+    tools::Rectangle aRect( pDocShell->GetVisArea() );
+
+    long nTmp = 0;
+
+    for (const PropertyValue& rValue : aViewProps)
+    {
+        if (rValue.Name == "ViewAreaTop" )
+        {
+            rValue.Value >>= nTmp;
+            aRect.SaturatingSetY(nTmp);
+        }
+        else if (rValue.Name == "ViewAreaLeft" )
+        {
+            rValue.Value >>= nTmp;
+            aRect.SaturatingSetX(nTmp);
+        }
+        else if (rValue.Name == "ViewAreaWidth" )
+        {
+            rValue.Value >>= nTmp;
+            Size aSize( aRect.GetSize() );
+            aSize.setWidth( nTmp );
+            aRect.SaturatingSetSize(aSize);
+        }
+        else if (rValue.Name == "ViewAreaHeight" )
+        {
+            rValue.Value >>= nTmp;
+            Size aSize( aRect.GetSize() );
+            aSize.setHeight( nTmp );
+            aRect.SaturatingSetSize(aSize);
+        }
+    }
+
+    pDocShell->SetVisArea ( aRect );
+}
+
+void SmXMLImport::SetConfigurationSettings(const Sequence<PropertyValue>& aConfProps)
+{
+    uno::Reference < XPropertySet > xProps ( GetModel(), UNO_QUERY );
+    if ( !xProps.is() )
+        return;
+
+    Reference < XPropertySetInfo > xInfo ( xProps->getPropertySetInfo() );
+    if (!xInfo.is() )
+        return;
+
+    const OUString sFormula ( "Formula" );
+    const OUString sBasicLibraries ( "BasicLibraries" );
+    const OUString sDialogLibraries ( "DialogLibraries" );
+    for ( const PropertyValue& rValue : aConfProps )
+    {
+        if (rValue.Name != sFormula &&
+            rValue.Name != sBasicLibraries &&
+            rValue.Name != sDialogLibraries)
+        {
+            try
+            {
+                if ( xInfo->hasPropertyByName( rValue.Name ) )
+                    xProps->setPropertyValue( rValue.Name, rValue.Value );
+            }
+            catch (const beans::PropertyVetoException &)
+            {
+                // dealing with read-only properties here. Nothing to do...
+            }
+            catch (const Exception&)
+            {
+                DBG_UNHANDLED_EXCEPTION("starmath");
+            }
+        }
+    }
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT bool TestImportMML(SvStream &rStream)
+{
+    SmGlobals::ensure();
+
+    SfxObjectShellLock xDocSh(new SmDocShell(SfxModelFlags::EMBEDDED_OBJECT));
+    xDocSh->DoInitNew();
+    uno::Reference<frame::XModel> xModel(xDocSh->GetModel());
+
+    uno::Reference<beans::XPropertySet> xInfoSet;
+    uno::Reference<uno::XComponentContext> xContext(comphelper::getProcessComponentContext());
+    uno::Reference<io::XInputStream> xStream(new utl::OSeekableInputStreamWrapper(rStream));
+
+    //SetLoading hack because the document properties will be re-initted
+    //by the xml filter and during the init, while it's considered uninitialized,
+    //setting a property will inform the document it's modified, which attempts
+    //to update the properties, which throws cause the properties are uninitialized
+    xDocSh->SetLoading(SfxLoadedFlags::NONE);
+
+    ErrCode nRet = ERRCODE_SFX_DOLOADFAILED;
+
+    try
+    {
+        nRet = SmXMLImportWrapper::ReadThroughComponent(xStream, xModel, xContext, xInfoSet, "com.sun.star.comp.Math.XMLImporter", false);
+    }
+    catch (...)
+    {
+    }
+
+    xDocSh->SetLoading(SfxLoadedFlags::ALL);
+
+    xDocSh->DoClose();
+
+    return nRet != ERRCODE_NONE;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/mathmlimport.hxx b/starmath/source/mathmlimport.hxx
new file mode 100644
index 000000000..555ea0d2c
--- /dev/null
+++ b/starmath/source/mathmlimport.hxx
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_MATHMLIMPORT_HXX
+#define INCLUDED_STARMATH_SOURCE_MATHMLIMPORT_HXX
+
+#include <xmloff/xmlimp.hxx>
+#include <vcl/errcode.hxx>
+
+#include <deque>
+#include <memory>
+
+class SmNode;
+class SfxMedium;
+namespace com::sun::star {
+    namespace beans {
+        class XPropertySet; }
+}
+
+
+typedef std::deque<std::unique_ptr<SmNode>> SmNodeStack;
+
+class SmXMLImportWrapper
+{
+    css::uno::Reference<css::frame::XModel> xModel;
+
+public:
+    explicit SmXMLImportWrapper(css::uno::Reference<css::frame::XModel> const &rRef)
+        : xModel(rRef) {}
+
+    ErrCode Import(SfxMedium &rMedium);
+
+    static ErrCode ReadThroughComponent(
+        const css::uno::Reference< css::io::XInputStream >& xInputStream,
+        const css::uno::Reference< css::lang::XComponent >& xModelComponent,
+        css::uno::Reference< css::uno::XComponentContext > const & rxContext,
+        css::uno::Reference< css::beans::XPropertySet > const & rPropSet,
+        const char* pFilterName,
+        bool bEncrypted );
+
+    static ErrCode ReadThroughComponent(
+        const css::uno::Reference< css::embed::XStorage >& xStorage,
+        const css::uno::Reference< css::lang::XComponent >& xModelComponent,
+        const char* pStreamName,
+        css::uno::Reference< css::uno::XComponentContext > const & rxContext,
+        css::uno::Reference< css::beans::XPropertySet > const & rPropSet,
+        const char* pFilterName );
+};
+
+
+class SmXMLImport : public SvXMLImport
+{
+    std::unique_ptr<SvXMLTokenMap> pColorTokenMap;
+
+        SmNodeStack aNodeStack;
+        bool bSuccess;
+        int nParseDepth;
+        OUString aText;
+
+public:
+    SmXMLImport(
+        const css::uno::Reference< css::uno::XComponentContext >& rContext,
+        OUString const & implementationName, SvXMLImportFlags nImportFlags);
+    virtual ~SmXMLImport() throw () override;
+
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& rId ) override;
+    static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId() throw();
+
+    void SAL_CALL endDocument() override;
+
+    SvXMLImportContext *CreateFastContext( sal_Int32 nElement,
+        const css::uno::Reference<
+        css::xml::sax::XFastAttributeList >& xAttrList ) override;
+
+    const SvXMLTokenMap &GetColorTokenMap();
+
+    SmNodeStack & GetNodeStack()    { return aNodeStack; }
+
+    bool GetSuccess() const              { return bSuccess; }
+    [[nodiscard]] const OUString& GetText() const { return aText; }
+    void SetText(const OUString &rStr) { aText = rStr; }
+
+    virtual void SetViewSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+    virtual void SetConfigurationSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    void IncParseDepth() { ++nParseDepth; }
+    bool TooDeep() const { return nParseDepth >= 2048; }
+    void DecParseDepth() { --nParseDepth; }
+};
+
+
+enum SmXMLPresScriptEmptyElemTokenMap
+{
+    XML_TOK_MPRESCRIPTS,
+    XML_TOK_NONE
+};
+
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/mathtype.cxx b/starmath/source/mathtype.cxx
new file mode 100644
index 000000000..13297eb7f
--- /dev/null
+++ b/starmath/source/mathtype.cxx
@@ -0,0 +1,3345 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "mathtype.hxx"
+
+#include <filter/msfilter/classids.hxx>
+#include <osl/diagnose.h>
+#include <sfx2/docfile.hxx>
+#include <sot/storage.hxx>
+#include <sal/log.hxx>
+
+#include "eqnolefilehdr.hxx"
+#include <node.hxx>
+
+void MathType::Init()
+{
+    //These are the default MathType sizes
+    aSizeTable.push_back(12);
+    aSizeTable.push_back(8);
+    aSizeTable.push_back(6);
+    aSizeTable.push_back(24);
+    aSizeTable.push_back(10);
+    aSizeTable.push_back(12);
+    aSizeTable.push_back(12);
+
+    /*
+    These are the default MathType italic/bold settings If mathtype is changed
+    from its defaults, there is nothing we can do, as this information is not
+    stored in the document
+    */
+    MathTypeFont aFont;
+    for(sal_uInt8 i=1;i<=11;i++)
+    {
+        aFont.nTface = i+128;
+        switch (i)
+        {
+            default:
+                aFont.nStyle=0;
+                break;
+            case 3:
+            case 4:
+                aFont.nStyle=1;
+                break;
+            case 7:
+                aFont.nStyle=2;
+                break;
+        }
+        aUserStyles.insert(aFont);
+    }
+}
+
+
+/*ToDo replace with table rather than switch, returns
+ sal_True in the case that the char is just a char, and
+ sal_False if the character is an operator which must not be
+ placed inside the quote sequence designed to protect
+ against being parsed as a keyword
+
+ General solution required to force starmath to handle
+ unicode math chars the way it handles its own math
+ chars rather than handle them as text as it will do
+ for the default case below, i.e. incorrect spacing
+ between math symbols and ordinary text e.g. 1=2 rather
+ than 1 = 2
+ */
+bool MathType::LookupChar(sal_Unicode nChar,OUStringBuffer &rRet,sal_uInt8 nVersion,
+    sal_uInt8 nTypeFace)
+{
+    bool bRet=false;
+    const char *pC = nullptr;
+    switch(nChar)
+    {
+        case 0x0000:
+            pC = " none ";
+            break;
+        case 0x00ac:
+            pC = " neg ";
+            break;
+        case 0x00b1:
+            pC = " +- ";
+            break;
+        case '(':
+            pC = " \\( ";
+            break;
+        case ')':
+            pC = " \\) ";
+            break;
+        case '[':
+            pC = " \\[ ";
+            break;
+        case ']':
+            pC = " \\] ";
+            break;
+        case '.':
+            pC = " \".\" ";
+            break;
+        case 0xae:
+            if ((nVersion < 3) && (nTypeFace == 0x86))
+                pC = " rightarrow ";
+            else
+            {
+                rRet.append(OUStringChar(nChar));
+                bRet=true;
+            }
+            break;
+        case 0x00fb:
+            if ((nVersion < 3) && (nTypeFace == 0x81))
+                nChar = 0xDF;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 'a':
+            if ((nVersion < 3) && (nTypeFace == 0x84))
+                nChar = 0x3b1;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 'b':
+            if ((nVersion < 3) && (nTypeFace == 0x84))
+                nChar = 0x3b2;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 'l':
+            if ((nVersion < 3) && (nTypeFace == 0x84))
+                nChar = 0x3bb;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 'n':
+            if ((nVersion < 3) && (nTypeFace == 0x84))
+                nChar = 0x3bd;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 'r':
+            if ((nVersion < 3) && (nTypeFace == 0x84))
+                nChar = 0x3c1;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 'D':
+            if ((nVersion < 3) && (nTypeFace == 0x84))
+                nChar = 0x394;
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 0xa9:
+            if ((nVersion < 3) && (nTypeFace == 0x82))
+                nChar = '\'';
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+        case 0x00f1:
+            if ((nVersion < 3) && (nTypeFace == 0x86))
+                pC = " \\rangle ";
+            else
+            {
+                rRet.append(OUStringChar(nChar));
+                bRet=true;
+            }
+            break;
+        case 0x00a3:
+            if ((nVersion < 3) && (nTypeFace == 0x86))
+                pC = " <= ";
+            else
+            {
+                rRet.append(OUStringChar(nChar));
+                bRet=true;
+            }
+            break;
+        case 0x00de:
+            if ((nVersion < 3) && (nTypeFace == 0x86))
+                pC = " drarrow ";
+            else
+            {
+                rRet.append(OUStringChar(nChar));
+                bRet=true;
+            }
+            break;
+        case 0x0057:
+            if ((nVersion < 3) && (nTypeFace == 0x85))
+                pC = " %OMEGA ";
+            else
+            {
+                rRet.append(OUStringChar(nChar));
+                bRet=true;
+            }
+            break;
+        case 0x007b:
+            pC = " lbrace ";
+            break;
+        case 0x007c:
+            pC = " \\lline ";
+            break;
+        case 0x007d:
+            pC = " rbrace ";
+            break;
+        case 0x007e:
+            pC = " \"~\" ";
+            break;
+        case 0x2224:
+            pC = " ndivides ";
+            break;
+        case 0x2225:
+            pC = " parallel ";
+            break;
+        case 0x00d7:
+            if (nVersion < 3)
+                pC = " cdot ";
+            else
+                pC = " times ";
+            break;
+        case 0x00f7:
+            pC = " div ";
+            break;
+        case 0x019b:
+            pC = " lambdabar ";
+            break;
+        case 0x2026:
+            pC = " dotslow ";
+            break;
+        case 0x2022:
+            pC = " cdot ";
+            break;
+        case 0x2102:
+            pC = " setC ";
+            break;
+        case 0x210f:
+            pC = " hbar ";
+            break;
+        case 0x2111:
+            pC = " Im ";
+            break;
+        case 0x2115:
+            pC = " setN ";
+            break;
+        case 0x2118:
+            pC = " wp ";
+            break;
+        case 0x211a:
+            pC = " setQ ";
+            break;
+        case 0x211c:
+            pC = " Re ";
+            break;
+        case 0x211d:
+            pC = " setR ";
+            break;
+        case 0x2124:
+            pC = " setZ ";
+            break;
+        case 0x2135:
+            pC = " aleph ";
+            break;
+        case 0x2190:
+            pC = " leftarrow ";
+            break;
+        case 0x2191:
+            pC = " uparrow ";
+            break;
+        case 0x2192:
+            pC = " rightarrow ";
+            break;
+        case 0x0362:
+            pC = " widevec ";
+            break;
+        case 0x2193:
+            pC = " downarrow ";
+            break;
+        case 0x21d0:
+            pC = " dlarrow ";
+            break;
+        case 0x21d2:
+            pC = " drarrow ";
+            break;
+        case 0x21d4:
+            pC = " dlrarrow ";
+            break;
+        case 0x2200:
+            pC = " forall ";
+            break;
+        case 0x2202:
+            pC = " partial ";
+            break;
+        case 0x2203:
+            pC = " exists ";
+            break;
+        case 0x2204:
+            pC = " notexists ";
+            break;
+        case 0x2205:
+            pC = " emptyset ";
+            break;
+        case 0x2207:
+            pC = " nabla ";
+            break;
+        case 0x2112:
+            pC = " laplace ";
+            break;
+        case 0x2208: // in
+        case 0x2209: // notin
+            rRet.append(" func ").append(OUStringChar(nChar)).append(" ");
+            break;
+        case 0x220d: // owns
+            rRet.append(u" func \u220b ");
+            break;
+        case 0x220f:
+            pC = " prod ";
+            break;
+        case 0x2210:
+            pC = " coprod ";
+            break;
+        case 0x2211:
+            pC = " sum ";
+            break;
+        case 0x2212:
+            pC = " - ";
+            break;
+        case 0x2213:
+            pC = " -+ ";
+            break;
+        case 0x2217:
+            pC = " * ";
+            break;
+        case 0x2218:
+            pC = " circ ";
+            break;
+        case 0x221d:
+            pC = " prop ";
+            break;
+        case 0x221e:
+            pC = " infinity ";
+            break;
+        case 0x2227:
+            pC = " and ";
+            break;
+        case 0x2228:
+            pC = " or ";
+            break;
+        case 0x2229:
+            pC = " intersection ";
+            break;
+        case 0x222a:
+            pC = " union ";
+            break;
+        case 0x222b:
+            pC = " int ";
+            break;
+        case 0x222c:
+            pC = " iint ";
+            break;
+        case 0x222d:
+            pC = " iiint ";
+            break;
+        case 0x222e:
+            pC = " lint ";
+            break;
+        case 0x222f:
+            pC = " llint ";
+            break;
+        case 0x2230:
+            pC = " lllint ";
+            break;
+        case 0x2245:
+            pC = " simeq ";
+            break;
+        case 0x2248:
+            pC = " approx ";
+            break;
+        case 0x2260:
+            pC = " <> ";
+            break;
+        case 0x2261:
+            pC = " equiv ";
+            break;
+        case 0x2264:
+            pC = " <= ";
+            break;
+        case 0x2265:
+            pC = " >= ";
+            break;
+
+        case 0x227A:
+            pC = " prec ";
+            break;
+        case 0x227B:
+            pC = " succ ";
+            break;
+        case 0x227C:
+            pC = " preccurlyeq ";
+            break;
+        case 0x227D:
+            pC = " succcurlyeq ";
+            break;
+        case 0x227E:
+            pC = " precsim ";
+            break;
+        case 0x227F:
+            pC = " succsim ";
+            break;
+        case 0x2280:
+            pC = " nprec ";
+            break;
+        case 0x2281:
+            pC = " nsucc ";
+            break;
+
+        case 0x2282: // subset
+        case 0x2283: // supset
+        case 0x2284: // nsubset
+        case 0x2285: // nsupset
+        case 0x2286: // subseteq
+        case 0x2287: // supseteq
+        case 0x2288: // nsubseteq
+        case 0x2289: // nsupseteq
+        case 0x22b2: // NORMAL SUBGROUP OF
+        case 0x22b3: // CONTAINS AS NORMAL SUBGROUP
+            rRet.append(" func ").append(OUStringChar(nChar)).append(" ");
+            break;
+        case 0x22a5:
+            pC = " ortho ";
+            break;
+        case 0x22c5:
+            pC = " cdot ";
+            break;
+        case 0x22ee:
+            pC = " dotsvert ";
+            break;
+        case 0x22ef:
+            pC = " dotsaxis ";
+            break;
+        case 0x22f0:
+            pC = " dotsup ";
+            break;
+        case 0x22f1:
+            pC = " dotsdown ";
+            break;
+        case MS_LANGLE:
+        case MS_LMATHANGLE:
+            pC = " langle ";
+            break;
+        case MS_RANGLE:
+        case MS_RMATHANGLE:
+            pC = " rangle ";
+            break;
+        case 0x301a:
+            pC = " ldbracket ";
+            break;
+        case 0x301b:
+            pC = " rdbracket ";
+            break;
+        case 0xe083:
+            rRet.append("+");
+            bRet=true;
+            break;
+        case '^':
+        case 0xe091:
+            pC = " widehat ";
+            break;
+        case 0xe096:
+            pC = " widetilde ";
+            break;
+        case 0xe098:
+            pC = " widevec ";
+            break;
+        case 0xE421:
+            pC = " geslant ";
+            break;
+        case 0xE425:
+            pC = " leslant ";
+            break;
+        case 0xeb01:    //no space
+        case 0xeb08:    //normal space
+            bRet=true;
+            break;
+        case 0xef04:    //tiny space
+        case 0xef05:    //tiny space
+        case 0xeb02:    //small space
+        case 0xeb04:    //medium space
+            rRet.append("`");
+            break;
+        case 0xeb05:    //large space
+            rRet.append("~");
+            break;
+        case 0x3a9:
+            pC = " %OMEGA ";
+            break;
+        default:
+            rRet.append(OUStringChar(nChar));
+            bRet=true;
+            break;
+    }
+    if (pC)
+        rRet.appendAscii(pC);
+    return bRet;
+}
+
+void MathTypeFont::AppendStyleToText(OUString &rRet)
+{
+    const char *pC = nullptr;
+    switch (nStyle)
+    {
+        default:
+        case 0:
+            break;
+        case 1:
+            pC = " ital ";
+            break;
+        case 2:
+            pC = " bold ";
+            break;
+        case 3:
+            pC = " bold italic";
+            break;
+    }
+    if (pC)
+        rRet += OUString::createFromAscii( pC );
+}
+
+void MathType::TypeFaceToString(OUString &rTxt,sal_uInt8 nFace)
+{
+    MathTypeFont aFont(nFace);
+    MathTypeFontSet::iterator aItr = aUserStyles.find(aFont);
+    if (aItr != aUserStyles.end())
+        aFont.nStyle = aItr->nStyle;
+    aFont.AppendStyleToText(rTxt);
+}
+
+bool MathType::Parse(SotStorage *pStor)
+{
+    tools::SvRef<SotStorageStream> xSrc = pStor->OpenSotStream(
+        "Equation Native",
+        StreamMode::STD_READ);
+    if ( (!xSrc.is()) || (ERRCODE_NONE != xSrc->GetError()))
+        return false;
+    return Parse(xSrc.get());
+}
+
+bool MathType::Parse(SvStream* pStream)
+{
+    pS = pStream;
+    pS->SetEndian( SvStreamEndian::LITTLE );
+
+    EQNOLEFILEHDR aHdr;
+    aHdr.Read(pS);
+    sal_uInt8 nProdVersion;
+    sal_uInt8 nProdSubVersion;
+    sal_uInt8 nPlatform;
+    sal_uInt8 nProduct;
+    pS->ReadUChar( nVersion );
+    pS->ReadUChar( nPlatform );
+    pS->ReadUChar( nProduct );
+    pS->ReadUChar( nProdVersion );
+    pS->ReadUChar( nProdSubVersion );
+
+    if (nVersion > 3)   // allow only supported versions of MathType to be parsed
+        return false;
+
+    bool bRet = HandleRecords(0);
+    //little crude hack to close occasionally open expressions
+    //a sophisticated system to determine what expressions are
+    //opened is required, but this is as much work as rewriting
+    //starmaths internals.
+    rRet.append("{}");
+
+    return bRet;
+}
+
+static void lcl_PrependDummyTerm(OUStringBuffer &rRet, sal_Int32 &rTextStart)
+{
+    if ((rTextStart < rRet.getLength()) &&
+        (rRet[rTextStart] == '=') &&
+        ((rTextStart == 0) || (rRet[ rTextStart-1 ] == '{'))
+       )
+    {
+        rRet.insert(rTextStart, " {}");
+        rTextStart+=3;
+    }
+}
+
+static void lcl_AppendDummyTerm(OUStringBuffer &rRet)
+{
+    bool bOk=false;
+    for(int nI=rRet.getLength()-1;nI >= 0; nI--)
+    {
+        sal_Int32 nIdx = sal::static_int_cast< sal_Int32 >(nI);
+        sal_Unicode nChar = rRet[nIdx];
+        if (nChar == ' ')
+            continue;
+        if (rRet[nIdx] != '{')
+            bOk=true;
+        break;
+    }
+    if (!bOk)   //No term, use dummy
+        rRet.append(" {}");
+}
+
+void MathType::HandleNudge()
+{
+    sal_uInt8 nXNudge;
+    pS->ReadUChar( nXNudge );
+    sal_uInt8 nYNudge;
+    pS->ReadUChar( nYNudge );
+    if (nXNudge == 128 && nYNudge == 128)
+    {
+        sal_uInt16 nXLongNudge;
+        sal_uInt16 nYLongNudge;
+        pS->ReadUInt16( nXLongNudge );
+        pS->ReadUInt16( nYLongNudge );
+    }
+}
+
+/* Fabulously complicated as many tokens have to be reordered and generally
+ * moved around from mathtypes paradigm to starmaths. */
+bool MathType::HandleRecords(int nLevel, sal_uInt8 nSelector,
+    sal_uInt8 nVariation, int nMatrixRows, int nMatrixCols)
+{
+    //depth-protect
+    if (nLevel > 1024)
+        return false;
+
+    sal_uInt8 nTag,nRecord;
+    sal_uInt8 nTabType,nTabStops;
+    sal_uInt16 nTabOffset;
+    int i, newline=0;
+    bool bSilent=false;
+    int nPart=0;
+    OUString sPush,sMainTerm;
+    int nSetSize=0,nSetAlign=0;
+    int nCurRow=0,nCurCol=0;
+    bool bOpenString=false;
+    sal_Int32 nTextStart = 0;
+    sal_Int32 nSubSupStartPos = 0;
+    sal_Int32 nLastTemplateBracket=-1;
+    bool bRet = true;
+
+    do
+    {
+        nTag = 0;
+        pS->ReadUChar( nTag );
+        nRecord = nTag&0x0F;
+
+        /*MathType strings can of course include words which
+         *are StarMath keywords, the simplest solution is
+         to escape strings of greater than len 1 with double
+         quotes to avoid scanning the TokenTable for matches
+
+         Unfortunately it may turn out that the string gets
+         split during the handling of a character emblishment
+         so this special case must be handled in the
+         character handler case 2:
+         */
+        if ((nRecord == CHAR) && (!bOpenString))
+        {
+            bOpenString=true;
+            nTextStart = rRet.getLength();
+        }
+        else if ((nRecord != CHAR) && bOpenString)
+        {
+            bOpenString=false;
+            if ((rRet.getLength() - nTextStart) > 1)
+            {
+                OUString aStr;
+                TypeFaceToString(aStr,nTypeFace);
+                aStr += "\"";
+                rRet.insert(nTextStart,aStr);
+                rRet.append("\"");
+            }
+            else if (nRecord == END && !rRet.isEmpty())
+            {
+                sal_Unicode cChar = 0;
+                sal_Int32 nI = rRet.getLength()-1;
+                while (nI)
+                {
+                    cChar = rRet[nI];
+                    if (cChar != ' ')
+                        break;
+                    --nI;
+                }
+                if ((cChar == '=') || (cChar == '+') || (cChar == '-'))
+                    rRet.append("{}");
+            }
+        }
+
+        switch(nRecord)
+        {
+            case LINE:
+                {
+                    if (xfLMOVE(nTag))
+                        HandleNudge();
+
+                    if (newline>0)
+                        rRet.append("\nnewline\n");
+                    if (!(xfNULL(nTag)))
+                    {
+                        switch (nSelector)
+                        {
+                        case tmANGLE:
+                            if (nVariation==0)
+                                rRet.append(" langle ");
+                            else if (nVariation==1)
+                                rRet.append(" \\langle ");
+                            break;
+                        case tmPAREN:
+                            if (nVariation==0)
+                                rRet.append(" left (");
+                            else if (nVariation==1)
+                                rRet.append("\\(");
+                            break;
+                        case tmBRACE:
+                            if ((nVariation==0) || (nVariation==1))
+                                rRet.append(" left lbrace ");
+                            else
+                                rRet.append(" left none ");
+                            break;
+                        case tmBRACK:
+                            if (nVariation==0)
+                                rRet.append(" left [");
+                            else if (nVariation==1)
+                                rRet.append("\\[");
+                            break;
+                        case tmLBLB:
+                        case tmLBRP:
+                            rRet.append(" \\[");
+                            break;
+                        case tmBAR:
+                            if (nVariation==0)
+                                rRet.append(" lline ");
+                            else if (nVariation==1)
+                                rRet.append(" \\lline ");
+                            break;
+                        case tmDBAR:
+                            if (nVariation==0)
+                                rRet.append(" ldline ");
+                            else if (nVariation==1)
+                                rRet.append(" \\ldline ");
+                            break;
+                        case tmFLOOR:
+                            if (nVariation == 0 || nVariation & 0x01) // tvFENCE_L
+                                rRet.append(" left lfloor ");
+                            else
+                                rRet.append(" left none ");
+                            break;
+                        case tmCEILING:
+                            if (nVariation==0)
+                                rRet.append(" lceil ");
+                            else if (nVariation==1)
+                                rRet.append(" \\lceil ");
+                            break;
+                        case tmRBRB:
+                        case tmRBLB:
+                            rRet.append(" \\]");
+                            break;
+                        case tmLPRB:
+                            rRet.append(" \\(");
+                            break;
+                        case tmROOT:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 0)
+                                    rRet.append(" sqrt");
+                                else
+                                {
+                                    rRet.append(" nroot");
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            rRet.append(" {");
+                            break;
+                        case tmFRACT:
+                            if (nPart == 0)
+                                rRet.append(" { ");
+
+
+                            if (nPart == 1)
+                                rRet.append(" over ");
+                            rRet.append(" {");
+                            break;
+                        case tmSCRIPT:
+                            nSubSupStartPos = rRet.getLength();
+                            if ((nVariation == 0) ||
+                                    ((nVariation == 2) && (nPart==1)))
+                            {
+                                lcl_AppendDummyTerm(rRet);
+                                rRet.append(" rSup");
+                            }
+                            else if ((nVariation == 1) ||
+                                    ((nVariation == 2) && (nPart==0)))
+                            {
+                                lcl_AppendDummyTerm(rRet);
+                                rRet.append(" rSub");
+                            }
+                            rRet.append(" {");
+                            break;
+                        case tmUBAR:
+                            if (nVariation == 0)
+                                rRet.append(" {underline ");
+                            else if (nVariation == 1)
+                                rRet.append(" {underline underline ");
+                            rRet.append(" {");
+                            break;
+                        case tmOBAR:
+                            if (nVariation == 0)
+                                rRet.append(" {overline ");
+                            else if (nVariation == 1)
+                                rRet.append(" {overline overline ");
+                            rRet.append(" {");
+                            break;
+                        case tmLARROW:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 0)
+                                    rRet.append(" widevec ");//left arrow above
+                                else if (nVariation == 1)
+                                    rRet.append(" widevec ");//left arrow below
+                                rRet.append(" {");
+                            }
+                            break;
+                        case tmRARROW:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 0)
+                                    rRet.append(" widevec ");//right arrow above
+                                else if (nVariation == 1)
+                                    rRet.append(" widevec ");//right arrow below
+                                rRet.append(" {");
+                            }
+                            break;
+                        case tmBARROW:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 0)
+                                    rRet.append(" widevec ");//double arrow above
+                                else if (nVariation == 1)
+                                    rRet.append(" widevec ");//double arrow below
+                                rRet.append(" {");
+                            }
+                            break;
+                        case tmSINT:
+                            if (nPart == 0)
+                            {
+                                if ((nVariation == 3) || (nVariation == 4))
+                                    rRet.append(" lInt");
+                                else
+                                    rRet.append(" Int");
+                                if ( (nVariation != 0) && (nVariation != 3))
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if (((nVariation == 1) ||
+                                    (nVariation == 4)) && (nPart==1))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 2) && (nPart==2))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 2) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmDINT:
+                            if (nPart == 0)
+                            {
+                                if ((nVariation == 2) || (nVariation == 3))
+                                    rRet.append(" llInt");
+                                else
+                                    rRet.append(" iInt");
+                                if ( (nVariation != 0) && (nVariation != 2))
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if (((nVariation == 1) ||
+                                    (nVariation == 3)) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmTINT:
+                            if (nPart == 0)
+                            {
+                                if ((nVariation == 2) || (nVariation == 3))
+                                    rRet.append(" lllInt");
+                                else
+                                    rRet.append(" iiInt");
+                                if ( (nVariation != 0) && (nVariation != 2))
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if (((nVariation == 1) ||
+                                    (nVariation == 3)) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmSSINT:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 2)
+                                    rRet.append(" lInt");
+                                else
+                                    rRet.append(" Int");
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if (((nVariation == 1) ||
+                                    (nVariation == 2)) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 0) && (nPart==2))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmDSINT:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 0)
+                                    rRet.append(" llInt");
+                                else
+                                    rRet.append(" iInt");
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if (nPart==1)
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmTSINT:
+                            if (nPart == 0)
+                            {
+                                if (nVariation == 0)
+                                    rRet.append(" lllInt");
+                                else
+                                    rRet.append(" iiInt");
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if (nPart==1)
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmUHBRACE:
+                        case tmLHBRACE:
+                            rRet.append(" {");
+                            break;
+                        case tmSUM:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" Sum");
+                                if (nVariation != 2)
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmISUM:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" Sum");
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmPROD:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" Prod");
+                                if (nVariation != 2)
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmIPROD:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" Prod");
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmCOPROD:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" coProd");
+                                if (nVariation != 2)
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmICOPROD:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" coProd");
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmUNION:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" union"); //union
+                                if (nVariation != 2)
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmIUNION:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" union"); //union
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmINTER:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" intersect"); //intersect
+                                if (nVariation != 2)
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmIINTER:
+                            if (nPart == 0)
+                            {
+                                rRet.append(" intersect"); //intersect
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 1) && (nPart==2))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmLIM:
+                            if ((nVariation == 0) && (nPart==1))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 2) && (nPart==1))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 2) && (nPart==2))
+                                rRet.append(" cSup");
+                            rRet.append(" {");
+                            break;
+                        case tmLDIV:
+                            if (nVariation == 0)
+                            {
+                                if (nPart == 0)
+                                {
+                                    sPush = rRet.makeStringAndClear();
+                                }
+                            }
+                            rRet.append(" {");
+                            if (nVariation == 0)
+                            {
+                                if (nPart == 1)
+                                    rRet.append("alignr ");
+                            }
+                            if (nPart == 0)
+                                rRet.append("\\lline ");
+                            if (nVariation == 1)
+                                rRet.append("overline ");
+                            break;
+                        case tmSLFRACT:
+                            rRet.append(" {");
+                            break;
+                        case tmINTOP:
+                            if (nPart == 0)
+                            {
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==0))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 2) && (nPart==1))
+                                rRet.append(" rSup");
+                            else if ((nVariation == 1) && (nPart==0))
+                                rRet.append(" rSub");
+                            else if ((nVariation == 2) && (nPart==0))
+                                rRet.append(" rSub");
+                            rRet.append(" {");
+                            break;
+                        case tmSUMOP:
+                            if (nPart == 0)
+                            {
+                                sPush = rRet.makeStringAndClear();
+                            }
+                            if ((nVariation == 0) && (nPart==0))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 2) && (nPart==1))
+                                rRet.append(" cSup");
+                            else if ((nVariation == 1) && (nPart==0))
+                                rRet.append(" cSub");
+                            else if ((nVariation == 2) && (nPart==0))
+                                rRet.append(" cSub");
+                            rRet.append(" {");
+                            break;
+                        case tmLSCRIPT:
+                            if (nPart == 0)
+                                rRet.append("\"\"");
+                            if ((nVariation == 0)
+                                    || ((nVariation == 2) && (nPart==1)))
+                                rRet.append(" lSup");
+                            else if ((nVariation == 1)
+                                    || ((nVariation == 2) && (nPart==0)))
+                                rRet.append(" lSub");
+                            rRet.append(" {");
+                            break;
+                        case tmDIRAC:
+                            if (nVariation==0)
+                            {
+                                if (nPart == 0)
+                                    rRet.append(" langle ");
+                            }
+                            else if (nVariation==1)
+                            {
+                                rRet.append(" \\langle ");
+                                newline--;
+                            }
+                            else if (nVariation==2)
+                            {
+                                rRet.append(" \\lline ");
+                                newline--;
+                            }
+                            break;
+                        case tmUARROW:
+                            if (nVariation == 0)
+                                rRet.append(" widevec ");//left below
+                            else if (nVariation == 1)
+                                rRet.append(" widevec ");//right below
+                            else if (nVariation == 2)
+                                rRet.append(" widevec ");//double headed below
+                            rRet.append(" {");
+                            break;
+                        case tmOARROW:
+                            if (nVariation == 0)
+                                rRet.append(" widevec ");//left above
+                            else if (nVariation == 1)
+                                rRet.append(" widevec ");//right above
+                            else if (nVariation == 2)
+                                rRet.append(" widevec ");//double headed above
+                            rRet.append(" {");
+                            break;
+                        default:
+                            break;
+                        }
+                        sal_Int16 nOldCurSize=nCurSize;
+                        sal_Int32 nSizeStartPos = rRet.getLength();
+                        HandleSize( nLSize, nDSize, nSetSize );
+                        bRet = HandleRecords( nLevel+1 );
+                        while (nSetSize)
+                        {
+                            bool bOk=false;
+                            sal_Int32 nI = rRet.lastIndexOf('{');
+                            if (nI != -1)
+                            {
+                                for(nI=nI+1;nI<rRet.getLength();nI++)
+                                    if (rRet[nI] != ' ')
+                                    {
+                                        bOk=true;
+                                        break;
+                                    }
+                            }
+                            else
+                                bOk=true;
+
+                            if (bOk)
+                                rRet.append("} ");
+                            else if (rRet.getLength() > nSizeStartPos)
+                                rRet = rRet.truncate(nSizeStartPos);
+                            nSetSize--;
+                            nCurSize=nOldCurSize;
+                        }
+
+
+                        HandleMatrixSeparator(nMatrixRows,nMatrixCols,
+                            nCurCol,nCurRow);
+
+                        switch (nSelector)
+                        {
+                        case tmANGLE:
+                            if (nVariation==0)
+                                rRet.append(" rangle ");
+                            else if (nVariation==2)
+                                rRet.append(" \\rangle ");
+                            break;
+                        case tmPAREN:
+                            if (nVariation==0)
+                                rRet.append(" right )");
+                            else if (nVariation==2)
+                                rRet.append("\\)");
+                            break;
+                        case tmBRACE:
+                            if ((nVariation==0) || (nVariation==2))
+                                rRet.append(" right rbrace ");
+                            else
+                                rRet.append(" right none ");
+                            break;
+                        case tmBRACK:
+                            if (nVariation==0)
+                                rRet.append(" right ]");
+                            else if (nVariation==2)
+                                rRet.append("\\]");
+                            break;
+                        case tmBAR:
+                            if (nVariation==0)
+                                rRet.append(" rline ");
+                            else if (nVariation==2)
+                                rRet.append(" \\rline ");
+                            break;
+                        case tmDBAR:
+                            if (nVariation==0)
+                                rRet.append(" rdline ");
+                            else if (nVariation==2)
+                                rRet.append(" \\rdline ");
+                            break;
+                        case tmFLOOR:
+                            if (nVariation == 0 || nVariation & 0x02) // tvFENCE_R
+                                rRet.append(" right rfloor ");
+                            else
+                                rRet.append(" right none ");
+                            break;
+                        case tmCEILING:
+                            if (nVariation==0)
+                                rRet.append(" rceil ");
+                            else if (nVariation==2)
+                                rRet.append(" \\rceil ");
+                            break;
+                        case tmLBLB:
+                        case tmRBLB:
+                            rRet.append("\\[");
+                            break;
+                        case tmRBRB:
+                        case tmLPRB:
+                            rRet.append("\\]");
+                            break;
+                        case tmROOT:
+                            rRet.append("} ");
+                            if (nVariation == 1)
+                            {
+                                if (nPart == 0)
+                                {
+                                    newline--;
+                                    sMainTerm = rRet.makeStringAndClear();
+                                }
+                                else if (nPart == 1)
+                                {
+                                    rRet.insert(0, sPush);
+                                    rRet.append(sMainTerm);
+                                    sPush.clear();
+                                    sMainTerm.clear();
+                                }
+                            }
+                            else
+                            {
+                                if (nPart == 0)
+                                    newline--;
+                            }
+                            nPart++;
+                            break;
+                        case tmLBRP:
+                            rRet.append("\\)");
+                            break;
+                        case tmFRACT:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                                newline--;
+                            else
+                                rRet.append("} ");
+                            nPart++;
+                            break;
+                        case tmSCRIPT:
+                            {
+                            if ((nPart == 0) &&
+                                    ((nVariation == 2) || (nVariation == 1)))
+                                newline--;
+
+                            bool bOk=false;
+                            sal_Int32 nI = rRet.lastIndexOf('{');
+                            if (nI != -1)
+                            {
+                                for(nI=nI+1;nI<rRet.getLength();nI++)
+                                    if (rRet[nI] != ' ')
+                                    {
+                                        bOk=true;
+                                        break;
+                                    }
+                            }
+                            else
+                                bOk=true;
+
+                            if (bOk)
+                                rRet.append("} ");
+                            else if (rRet.getLength() > nSubSupStartPos)
+                                rRet = rRet.truncate(nSubSupStartPos);
+                            nPart++;
+                            }
+                            break;
+                        case tmLSCRIPT:
+                            if ((nPart == 0) &&
+                                    ((nVariation == 2) || (nVariation == 1)))
+                                newline--;
+                            rRet.append("} ");
+                            nPart++;
+                            break;
+                        case tmUARROW:
+                        case tmOARROW:
+                            rRet.append("} ");
+                            break;
+                        case tmUBAR:
+                        case tmOBAR:
+                            rRet.append("}} ");
+                            break;
+                        case tmLARROW:
+                        case tmRARROW:
+                        case tmBARROW:
+                            if (nPart == 0)
+                            {
+                                newline--;
+                                rRet.append("} ");
+                            }
+                            nPart++;
+                            break;
+                        case tmUHBRACE:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                newline--;
+                                rRet.append("overbrace");
+                            }
+                            nPart++;
+                            break;
+                        case tmLHBRACE:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                newline--;
+                                rRet.append("underbrace");
+                            }
+                            nPart++;
+                            break;
+                        case tmLIM:
+                            if (nPart==0)
+                                newline--;
+                            else if ((nPart==1) &&
+                                    ((nVariation == 2) || (nVariation == 1)))
+                                newline--;
+                            rRet.append("} ");
+                            nPart++;
+                            break;
+                        case tmLDIV:
+                            rRet.append("} ");
+                            if (nVariation == 0)
+                            {
+                                if (nPart == 0)
+                                {
+                                    sMainTerm = rRet.makeStringAndClear();
+                                }
+                                else if (nPart == 1)
+                                {
+                                    rRet.insert(0, sPush);
+                                    rRet.append(" over ").append(sMainTerm);
+                                    sPush.clear();
+                                    sMainTerm.clear();
+                                }
+                            }
+                            if (nPart == 0)
+                                newline--;
+                            nPart++;
+                            break;
+                        case tmSLFRACT:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                newline--;
+                                switch (nVariation)
+                                {
+                                case 1:
+                                    rRet.append("slash");
+                                    break;
+                                default:
+                                    rRet.append("wideslash");
+                                    break;
+                                }
+                            }
+                            nPart++;
+                            break;
+                        case tmSUM:
+                        case tmISUM:
+                        case tmPROD:
+                        case tmIPROD:
+                        case tmCOPROD:
+                        case tmICOPROD:
+                        case tmUNION:
+                        case tmIUNION:
+                        case tmINTER:
+                        case tmIINTER:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                if (nVariation != 2)
+                                {
+                                    sMainTerm = rRet.makeStringAndClear();
+                                }
+                                newline--;
+                            }
+                            else if ((nPart == 1) && (nVariation == 0))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            else if ((nPart == 1) && (nVariation == 1))
+                                newline--;
+                            else if ((nPart == 2) && (nVariation == 1))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            nPart++;
+                            break;
+                        case tmSINT:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                if ((nVariation != 0) && (nVariation != 3))
+                                {
+                                    sMainTerm = rRet.makeStringAndClear();
+                                }
+                                newline--;
+                            }
+                            else if ((nPart == 1) &&
+                                    ((nVariation == 1) || (nVariation==4)))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            else if ((nPart == 1) && (nVariation == 2))
+                                newline--;
+                            else if ((nPart == 2) && (nVariation == 2))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            nPart++;
+                            break;
+                        case tmDINT:
+                        case tmTINT:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                if ((nVariation != 0) && (nVariation != 2))
+                                {
+                                    sMainTerm = rRet.makeStringAndClear();
+                                }
+                                newline--;
+                            }
+                            else if ((nPart == 1) &&
+                                    ((nVariation == 1) || (nVariation==3)))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            nPart++;
+                            break;
+                        case tmSSINT:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                sMainTerm = rRet.makeStringAndClear();
+                                newline--;
+                            }
+                            else if ((nPart == 1) &&
+                                    ((nVariation == 1) || (nVariation==2)))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            else if ((nPart == 1) && (nVariation == 0))
+                                newline--;
+                            else if ((nPart == 2) && (nVariation == 0))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            nPart++;
+                            break;
+                        case tmDSINT:
+                        case tmTSINT:
+                            rRet.append("} ");
+                            if (nPart == 0)
+                            {
+                                sMainTerm = rRet.makeStringAndClear();
+                                newline--;
+                            }
+                            else if (nPart == 1)
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                                newline--;
+                            }
+                            nPart++;
+                            break;
+                        case tmINTOP:
+                        case tmSUMOP:
+                            rRet.append("} ");
+
+                            if ((nPart == 0) &&
+                                    ((nVariation == 0) || (nVariation == 1)))
+                            {
+                                sMainTerm = rRet.makeStringAndClear();
+                                newline--;
+                            }
+                            else if ((nPart == 0) && (nVariation == 2))
+                                newline--;
+                            else if ((nPart == 1) && (nVariation == 2))
+                            {
+                                sMainTerm = rRet.makeStringAndClear();
+                                newline--;
+                            }
+                            else if ((nPart == 2) || ((nPart == 1) &&
+                                    (nVariation == 0 || nVariation == 1)))
+                            {
+                                rRet.insert(0, sPush);
+                                rRet.append(sMainTerm);
+                                sPush.clear();
+                                sMainTerm.clear();
+                            }
+                            nPart++;
+                            break;
+                        case tmDIRAC:
+                            if (nVariation==0)
+                            {
+                                if (nPart == 0)
+                                {
+                                    newline--; //there is another term to arrive
+                                    rRet.append(" mline ");
+                                }
+                                else
+                                    rRet.append(" rangle ");
+                            }
+                            else if (nVariation==1)
+                                rRet.append(" \\lline ");
+                            else if (nVariation==2)
+                                rRet.append(" \\rangle ");
+                            nPart++;
+                            break;
+                        default:
+                            break;
+                        }
+                        bSilent = true; //Skip the optional brackets and/or
+                                        //symbols that follow some of these
+                                        //records. Foo Data.
+
+                        /*In matrices and piles we cannot separate equation
+                         *lines with the newline keyword*/
+                        if (nMatrixCols==0)
+                            newline++;
+                    }
+                }
+                break;
+            case CHAR:
+                if (xfLMOVE(nTag))
+                    HandleNudge();
+                bRet = HandleChar( nTextStart, nSetSize, nLevel, nTag, nSelector, nVariation, bSilent );
+                break;
+            case TMPL:
+                if (xfLMOVE(nTag))
+                    HandleNudge();
+                bRet = HandleTemplate( nLevel, nSelector, nVariation, nLastTemplateBracket );
+                break;
+            case PILE:
+                if (xfLMOVE(nTag))
+                    HandleNudge();
+                bRet = HandlePile( nSetAlign, nLevel, nSelector, nVariation );
+                HandleMatrixSeparator( nMatrixRows, nMatrixCols, nCurCol, nCurRow );
+                break;
+            case MATRIX:
+                if (xfLMOVE(nTag))
+                    HandleNudge();
+                bRet = HandleMatrix( nLevel, nSelector, nVariation );
+                HandleMatrixSeparator( nMatrixRows, nMatrixCols, nCurCol, nCurRow );
+                break;
+            case EMBEL:
+                if (xfLMOVE(nTag))
+                    HandleNudge();
+                HandleEmblishments();
+                break;
+            case RULER:
+                pS->ReadUChar( nTabStops );
+                for (i=0;i<nTabStops;i++)
+                {
+                    pS->ReadUChar( nTabType );
+                    pS->ReadUInt16( nTabOffset );
+                }
+                SAL_WARN("starmath", "Not seen in the wild Equation Ruler Field");
+                break;
+            case FONT:
+                {
+                    MathTypeFont aFont;
+                    pS->ReadUChar( aFont.nTface );
+                    /*
+                    The typeface number is the negative (which makes it
+                    positive) of the typeface value (unbiased) that appears in
+                    CHAR records that might follow a given FONT record
+                    */
+                    aFont.nTface = 128-aFont.nTface;
+                    pS->ReadUChar( aFont.nStyle );
+                    aUserStyles.insert(aFont);
+                    // read font name
+                    while(true)
+                    {
+                        char nChar8(0);
+                        pS->ReadChar( nChar8 );
+                        if (nChar8 == 0)
+                            break;
+                    }
+                }
+                break;
+            case SIZE:
+                HandleSetSize();
+                break;
+            case 10:
+            case 11:
+            case 12:
+            case 13:
+            case 14:
+                nLSize=nRecord-10;
+                break;
+            case END:
+            default:
+                break;
+        }
+    }
+    while (nRecord != END && !pS->eof());
+    while (nSetSize)
+    {
+        rRet.append("}");
+        nSetSize--;
+    }
+    return bRet;
+}
+
+/*Simply determine if we are at the end of a record or the end of a line,
+ *with fiddly logic to see if we are in a matrix or a pile or neither
+
+ Note we cannot tell until after the event that this is the last entry
+ of a pile, so we must strip the last separator of a pile after this
+ is detected in the PILE handler
+ */
+void MathType::HandleMatrixSeparator(int nMatrixRows,int nMatrixCols,
+    int &rCurCol,int &rCurRow)
+{
+    if (nMatrixRows==0)
+        return;
+
+    if (rCurCol == nMatrixCols-1)
+    {
+        if (rCurRow != nMatrixRows-1)
+            rRet.append(" {} ##\n");
+        if (nMatrixRows!=-1)
+        {
+            rCurCol=0;
+            rCurRow++;
+        }
+    }
+    else
+    {
+        rRet.append(" {} # ");
+        if (nMatrixRows!=-1)
+            rCurCol++;
+        else
+            rRet.append("\n");
+    }
+}
+
+/* set the alignment of the following term, but starmath currently
+ * cannot handle vertical alignment */
+void MathType::HandleAlign(sal_uInt8 nHorAlign, int &rSetAlign)
+{
+    switch(nHorAlign)
+    {
+    case 1:
+    default:
+        rRet.append("alignl {");
+        break;
+    case 2:
+        rRet.append("alignc {");
+        break;
+    case 3:
+        rRet.append("alignr {");
+        break;
+    }
+    rSetAlign++;
+}
+
+/* set size of text, complexity due to overuse of signedness as a flag
+ * indicator by mathtype file format*/
+bool MathType::HandleSize(sal_Int16 nLstSize,sal_Int16 nDefSize, int &rSetSize)
+{
+    const sal_Int16 nDefaultSize = 12;
+    bool bRet=false;
+    if (nLstSize < 0)
+    {
+        if ((-nLstSize/32 != nDefaultSize) && (-nLstSize/32 != nCurSize))
+        {
+            if (rSetSize)
+            {
+                rSetSize--;
+                rRet.append("}");
+                bRet=true;
+            }
+            if (-nLstSize/32 != nLastSize)
+            {
+                nLastSize = nCurSize;
+                rRet.append(" size ");
+                rRet.append(OUString::number(-nLstSize/32));
+                rRet.append("{");
+                bRet=true;
+                rSetSize++;
+            }
+            nCurSize = -nLstSize/32;
+        }
+    }
+    else
+    {
+        /*sizetable should theoretically be filled with the default sizes
+         *of the various font groupings matching starmaths equivalents
+         in aTypeFaces, and a test would be done to see if the new font
+         size would be the same as what starmath would have chosen for
+         itself anyway in which case the size setting could be ignored*/
+        nLstSize = aSizeTable.at(nLstSize);
+        nLstSize = nLstSize + nDefSize;
+        if (nLstSize != nCurSize)
+        {
+            if (rSetSize)
+            {
+                rSetSize--;
+                rRet.append("}");
+                bRet=true;
+            }
+            if (nLstSize != nLastSize)
+            {
+                nLastSize = nCurSize;
+                rRet.append(" size ");
+                rRet.append(OUString::number(nLstSize));
+                rRet.append("{");
+                bRet=true;
+                rSetSize++;
+            }
+            nCurSize = nLstSize;
+        }
+    }
+    return bRet;
+}
+
+bool MathType::ConvertFromStarMath( SfxMedium& rMedium )
+{
+    if (!pTree)
+        return false;
+
+    SvStream *pStream = rMedium.GetOutStream();
+    if ( pStream )
+    {
+        tools::SvRef<SotStorage> pStor = new SotStorage( pStream, false );
+
+        SvGlobalName aGName(MSO_EQUATION3_CLASSID);
+        pStor->SetClass( aGName, SotClipboardFormatId::NONE, "Microsoft Equation 3.0");
+
+        static sal_uInt8 const aCompObj[] = {
+            0x01, 0x00, 0xFE, 0xFF, 0x03, 0x0A, 0x00, 0x00,
+            0xFF, 0xFF, 0xFF, 0xFF, 0x02, 0xCE, 0x02, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x46, 0x17, 0x00, 0x00, 0x00,
+            0x4D, 0x69, 0x63, 0x72, 0x6F, 0x73, 0x6F, 0x66,
+            0x74, 0x20, 0x45, 0x71, 0x75, 0x61, 0x74, 0x69,
+            0x6F, 0x6E, 0x20, 0x33, 0x2E, 0x30, 0x00, 0x0C,
+            0x00, 0x00, 0x00, 0x44, 0x53, 0x20, 0x45, 0x71,
+            0x75, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x00, 0x0B,
+            0x00, 0x00, 0x00, 0x45, 0x71, 0x75, 0x61, 0x74,
+            0x69, 0x6F, 0x6E, 0x2E, 0x33, 0x00, 0xF4, 0x39,
+            0xB2, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+        };
+        tools::SvRef<SotStorageStream> xStor( pStor->OpenSotStream("\1CompObj"));
+        xStor->WriteBytes(aCompObj, sizeof(aCompObj));
+
+        static sal_uInt8 const aOle[] = {
+            0x01, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00
+            };
+        tools::SvRef<SotStorageStream> xStor2( pStor->OpenSotStream("\1Ole"));
+        xStor2->WriteBytes(aOle, sizeof(aOle));
+        xStor.clear();
+        xStor2.clear();
+
+        tools::SvRef<SotStorageStream> xSrc = pStor->OpenSotStream("Equation Native");
+        if ( (!xSrc.is()) || (ERRCODE_NONE != xSrc->GetError()))
+            return false;
+
+        pS = xSrc.get();
+        pS->SetEndian( SvStreamEndian::LITTLE );
+
+        pS->SeekRel(EQNOLEFILEHDR_SIZE); //Skip 28byte Header and fill it in later
+        pS->WriteUChar( 0x03 );
+        pS->WriteUChar( 0x01 );
+        pS->WriteUChar( 0x01 );
+        pS->WriteUChar( 0x03 );
+        pS->WriteUChar( 0x00 );
+        sal_uInt32 nSize = pS->Tell();
+        nPendingAttributes=0;
+
+        HandleNodes(pTree, 0);
+        pS->WriteUChar( END );
+
+        nSize = pS->Tell()-nSize;
+        pS->Seek(0);
+        EQNOLEFILEHDR aHdr(nSize+4+1);
+        aHdr.Write(pS);
+
+        pStor->Commit();
+    }
+
+    return true;
+}
+
+
+void MathType::HandleNodes(SmNode *pNode,int nLevel)
+{
+    switch(pNode->GetType())
+    {
+        case SmNodeType::Attribut:
+            HandleAttributes(pNode,nLevel);
+            break;
+        case SmNodeType::Text:
+            HandleText(pNode);
+            break;
+        case SmNodeType::VerticalBrace:
+            HandleVerticalBrace(pNode,nLevel);
+            break;
+        case SmNodeType::Brace:
+            HandleBrace(pNode,nLevel);
+            break;
+        case SmNodeType::Oper:
+            HandleOperator(pNode,nLevel);
+            break;
+        case SmNodeType::BinVer:
+            HandleFractions(pNode,nLevel);
+            break;
+        case SmNodeType::Root:
+            HandleRoot(pNode,nLevel);
+            break;
+        case SmNodeType::Special:
+            {
+            SmTextNode *pText = static_cast<SmTextNode *>(pNode);
+            //if the token str and the result text are the same then this
+            //is to be seen as text, else assume it's a mathchar
+            if (pText->GetText() == pText->GetToken().aText)
+                HandleText(pText);
+            else
+                HandleMath(pText);
+            }
+            break;
+        case SmNodeType::Math:
+        case SmNodeType::MathIdent:
+            HandleMath(pNode);
+            break;
+        case SmNodeType::SubSup:
+            HandleSubSupScript(pNode,nLevel);
+            break;
+        case SmNodeType::Expression:
+        {
+            size_t nSize = pNode->GetNumSubNodes();
+            for (size_t i = 0; i < nSize; ++i)
+            {
+                if (SmNode *pTemp = pNode->GetSubNode(i))
+                    HandleNodes(pTemp,nLevel+1);
+            }
+            break;
+        }
+        case SmNodeType::Table:
+            //Root Node, PILE equivalent, i.e. vertical stack
+            HandleTable(pNode,nLevel);
+            break;
+        case SmNodeType::Matrix:
+            HandleSmMatrix(static_cast<SmMatrixNode *>(pNode),nLevel);
+            break;
+        case SmNodeType::Line:
+        {
+            pS->WriteUChar( 0x0a );
+            pS->WriteUChar( LINE );
+            size_t nSize = pNode->GetNumSubNodes();
+            for (size_t i = 0; i < nSize; ++i)
+            {
+                if (SmNode *pTemp = pNode->GetSubNode(i))
+                    HandleNodes(pTemp,nLevel+1);
+            }
+            pS->WriteUChar( END );
+            break;
+        }
+        case SmNodeType::Align:
+            HandleMAlign(pNode,nLevel);
+            break;
+        case SmNodeType::Blank:
+            pS->WriteUChar( CHAR );
+            pS->WriteUChar( 0x98 );
+            if (pNode->GetToken().eType == TSBLANK)
+                pS->WriteUInt16( 0xEB04 );
+            else
+                pS->WriteUInt16( 0xEB05 );
+            break;
+        default:
+        {
+            size_t nSize = pNode->GetNumSubNodes();
+            for (size_t i = 0; i < nSize; ++i)
+            {
+                if (SmNode *pTemp = pNode->GetSubNode(i))
+                    HandleNodes(pTemp,nLevel+1);
+            }
+            break;
+        }
+    }
+}
+
+
+int MathType::StartTemplate(sal_uInt16 nSelector,sal_uInt16 nVariation)
+{
+    int nOldPending=nPendingAttributes;
+    pS->WriteUChar( TMPL ); //Template
+    pS->WriteUChar( nSelector ); //selector
+    pS->WriteUChar( nVariation ); //variation
+    pS->WriteUChar( 0x00 ); //options
+    pS->WriteUChar( LINE );
+    //there's just no way we can now handle any character
+    //attributes (from mathtypes perspective) centered
+    //over an expression but above template attribute
+    //such as widevec and similar constructs
+    //we have to drop them
+    nPendingAttributes=0;
+    return nOldPending;
+}
+
+void MathType::EndTemplate(int nOldPendingAttributes)
+{
+    pS->WriteUChar( END ); //end line
+    pS->WriteUChar( END ); //end template
+    nPendingAttributes=nOldPendingAttributes;
+}
+
+
+void MathType::HandleSmMatrix(SmMatrixNode *pMatrix,int nLevel)
+{
+    pS->WriteUChar( MATRIX );
+    pS->WriteUChar( 0x00 ); //vAlign ?
+    pS->WriteUChar( 0x00 ); //h_just
+    pS->WriteUChar( 0x00 ); //v_just
+    pS->WriteUChar( pMatrix->GetNumRows() ); //v_just
+    pS->WriteUChar( pMatrix->GetNumCols() ); //v_just
+    int nBytes=(pMatrix->GetNumRows()+1)*2/8;
+    if (((pMatrix->GetNumRows()+1)*2)%8)
+        nBytes++;
+    for (int j = 0; j < nBytes; j++)
+        pS->WriteUChar( 0x00 ); //row_parts
+    nBytes=(pMatrix->GetNumCols()+1)*2/8;
+    if (((pMatrix->GetNumCols()+1)*2)%8)
+        nBytes++;
+    for (int k = 0; k < nBytes; k++)
+        pS->WriteUChar( 0x00 ); //col_parts
+    size_t nSize = pMatrix->GetNumSubNodes();
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (SmNode *pTemp = pMatrix->GetSubNode(i))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //end line
+        }
+    }
+    pS->WriteUChar( END );
+}
+
+
+//Root Node, PILE equivalent, i.e. vertical stack
+void MathType::HandleTable(SmNode *pNode,int nLevel)
+{
+    size_t nSize = pNode->GetNumSubNodes();
+    //The root of the starmath is a table, if
+    //we convert this them each iteration of
+    //conversion from starmath to mathtype will
+    //add an extra unnecessary level to the
+    //mathtype output stack which would grow
+    //without bound in a multi step conversion
+
+    if (nLevel == 0)
+        pS->WriteUChar( 0x0A ); //initial size
+
+    if ( nLevel || (nSize >1))
+    {
+        pS->WriteUChar( PILE );
+        pS->WriteUChar( nHAlign ); //vAlign ?
+        pS->WriteUChar( 0x01 ); //hAlign
+    }
+
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (SmNode *pTemp = pNode->GetSubNode(i))
+        {
+            pS->WriteUChar( LINE );
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END );
+        }
+    }
+    if (nLevel || (nSize>1))
+        pS->WriteUChar( END );
+}
+
+
+void MathType::HandleRoot(SmNode *pNode,int nLevel)
+{
+    SmNode *pTemp;
+    pS->WriteUChar( TMPL ); //Template
+    pS->WriteUChar( 0x0D ); //selector
+    if (pNode->GetSubNode(0))
+        pS->WriteUChar( 0x01 ); //variation
+    else
+        pS->WriteUChar( 0x00 ); //variation
+    pS->WriteUChar( 0x00 ); //options
+
+    if (nullptr != (pTemp = pNode->GetSubNode(2)))
+    {
+        pS->WriteUChar( LINE ); //line
+        HandleNodes(pTemp,nLevel+1);
+        pS->WriteUChar( END );
+    }
+
+    if (nullptr != (pTemp = pNode->GetSubNode(0)))
+    {
+        pS->WriteUChar( LINE ); //line
+        HandleNodes(pTemp,nLevel+1);
+        pS->WriteUChar( END );
+    }
+    else
+        pS->WriteUChar( LINE|0x10 ); //dummy line
+
+
+    pS->WriteUChar( END );
+}
+
+sal_uInt8 MathType::HandleCScript(SmNode *pNode,SmNode *pContent,int nLevel,
+    sal_uInt64 *pPos,bool bTest)
+{
+    sal_uInt8 nVariation2=0xff;
+
+    if (bTest && pNode->GetSubNode(CSUP+1))
+    {
+        nVariation2=0;
+        if (pNode->GetSubNode(CSUB+1))
+            nVariation2=2;
+    }
+    else if (pNode->GetSubNode(CSUB+1))
+        nVariation2=1;
+
+    if (nVariation2!=0xff)
+    {
+        if (pPos)
+            *pPos = pS->Tell();
+        pS->WriteUChar( TMPL ); //Template
+        pS->WriteUChar( 0x2B ); //selector
+        pS->WriteUChar( nVariation2 );
+        pS->WriteUChar( 0x00 ); //options
+
+        if (pContent)
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pContent,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+
+        pS->WriteUChar( 0x0B );
+
+        SmNode *pTemp;
+        if (nullptr != (pTemp = pNode->GetSubNode(CSUB+1)))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+        if (bTest && nullptr != (pTemp = pNode->GetSubNode(CSUP+1)))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+    }
+    return nVariation2;
+}
+
+
+/*
+ Sub and Sup scripts and another problem area, StarMath
+ can have all possible options used at the same time, whereas
+ Mathtype cannot. The ordering of the nodes for each system
+ is quite different as well leading to some complexity
+ */
+void MathType::HandleSubSupScript(SmNode *pNode,int nLevel)
+{
+    sal_uInt8 nVariation=0xff;
+    if (pNode->GetSubNode(LSUP+1))
+    {
+        nVariation=0;
+        if (pNode->GetSubNode(LSUB+1))
+            nVariation=2;
+    }
+    else if ( nullptr != pNode->GetSubNode(LSUB+1) )
+        nVariation=1;
+
+    SmNode *pTemp;
+    if (nVariation!=0xff)
+    {
+        pS->WriteUChar( TMPL ); //Template
+        pS->WriteUChar( 0x2c ); //selector
+        pS->WriteUChar( nVariation );
+        pS->WriteUChar( 0x00 ); //options
+        pS->WriteUChar( 0x0B );
+
+        if (nullptr != (pTemp = pNode->GetSubNode(LSUB+1)))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+        if (nullptr != (pTemp = pNode->GetSubNode(LSUP+1)))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+        pS->WriteUChar( END );
+        nVariation=0xff;
+    }
+
+
+    sal_uInt8 nVariation2=HandleCScript(pNode,nullptr,nLevel);
+
+    if (nullptr != (pTemp = pNode->GetSubNode(0)))
+    {
+        HandleNodes(pTemp,nLevel+1);
+    }
+
+    if (nVariation2 != 0xff)
+        pS->WriteUChar( END );
+
+    if (nullptr != (pNode->GetSubNode(RSUP+1)))
+    {
+        nVariation=0;
+        if (pNode->GetSubNode(RSUB+1))
+            nVariation=2;
+    }
+    else if (nullptr != pNode->GetSubNode(RSUB+1))
+        nVariation=1;
+
+    if (nVariation!=0xff)
+    {
+        pS->WriteUChar( TMPL ); //Template
+        pS->WriteUChar( 0x0F ); //selector
+        pS->WriteUChar( nVariation );
+        pS->WriteUChar( 0x00 ); //options
+        pS->WriteUChar( 0x0B );
+
+        if (nullptr != (pTemp = pNode->GetSubNode(RSUB+1)))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+        if (nullptr != (pTemp = pNode->GetSubNode(RSUP+1)))
+        {
+            pS->WriteUChar( LINE ); //line
+            HandleNodes(pTemp,nLevel+1);
+            pS->WriteUChar( END ); //line
+        }
+        else
+            pS->WriteUChar( LINE|0x10 );
+        pS->WriteUChar( END ); //line
+    }
+
+    //After subscript mathtype will keep the size of
+    //normal text at the subscript size, sigh.
+    pS->WriteUChar( 0x0A );
+}
+
+
+void MathType::HandleFractions(SmNode *pNode,int nLevel)
+{
+    SmNode *pTemp;
+    pS->WriteUChar( TMPL ); //Template
+    pS->WriteUChar( 0x0E ); //selector
+    pS->WriteUChar( 0x00 ); //variation
+    pS->WriteUChar( 0x00 ); //options
+
+    pS->WriteUChar( 0x0A );
+    pS->WriteUChar( LINE ); //line
+    if (nullptr != (pTemp = pNode->GetSubNode(0)))
+        HandleNodes(pTemp,nLevel+1);
+    pS->WriteUChar( END );
+
+    pS->WriteUChar( 0x0A );
+    pS->WriteUChar( LINE ); //line
+    if (nullptr != (pTemp = pNode->GetSubNode(2)))
+        HandleNodes(pTemp,nLevel+1);
+    pS->WriteUChar( END );
+
+    pS->WriteUChar( END );
+}
+
+
+void MathType::HandleBrace(SmNode *pNode,int nLevel)
+{
+    SmNode *pTemp;
+    SmNode *pLeft=pNode->GetSubNode(0);
+    SmNode *pRight=pNode->GetSubNode(2);
+
+    pS->WriteUChar( TMPL ); //Template
+    bIsReInterpBrace=false;
+    sal_uInt8 nBSpec=0x10;
+    auto nLoc = pS->Tell();
+    if (pLeft)
+    {
+        switch (pLeft->GetToken().eType)
+        {
+            case TLANGLE:
+                pS->WriteUChar( tmANGLE ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                break;
+            case TLBRACE:
+                pS->WriteUChar( tmBRACE ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                nBSpec+=3;
+                break;
+            case TLBRACKET:
+                pS->WriteUChar( tmBRACK ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                nBSpec+=3;
+                break;
+            case TLFLOOR:
+                pS->WriteUChar( tmFLOOR ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                break;
+            case TLLINE:
+                pS->WriteUChar( tmBAR ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                nBSpec+=3;
+                break;
+            case TLDLINE:
+                pS->WriteUChar( tmDBAR ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                break;
+            default:
+                pS->WriteUChar( tmPAREN ); //selector
+                pS->WriteUChar( 0 ); //variation
+                pS->WriteUChar( 0 ); //options
+                nBSpec+=3;
+                break;
+        }
+    }
+
+    if (nullptr != (pTemp = pNode->GetSubNode(1)))
+    {
+        pS->WriteUChar( LINE ); //line
+        HandleNodes(pTemp,nLevel+1);
+        pS->WriteUChar( END ); //options
+    }
+    nSpec=nBSpec;
+    if (pLeft)
+        HandleNodes(pLeft,nLevel+1);
+    if (bIsReInterpBrace)
+    {
+        auto nLoc2 = pS->Tell();
+        pS->Seek(nLoc);
+        pS->WriteUChar( 0x2D );
+        pS->Seek(nLoc2);
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x96 );
+        pS->WriteUInt16( 0xEC07 );
+        bIsReInterpBrace=false;
+    }
+    if (pRight)
+        HandleNodes(pRight,nLevel+1);
+    nSpec=0x0;
+    pS->WriteUChar( END );
+}
+
+
+void MathType::HandleVerticalBrace(SmNode *pNode,int nLevel)
+{
+    SmNode *pTemp;
+    pS->WriteUChar( TMPL ); //Template
+    if (pNode->GetToken().eType == TUNDERBRACE)
+        pS->WriteUChar( tmLHBRACE ); //selector
+    else
+        pS->WriteUChar( tmUHBRACE ); //selector
+    pS->WriteUChar( 0 ); //variation
+    pS->WriteUChar( 0 ); //options
+
+    if (nullptr != (pTemp = pNode->GetSubNode(0)))
+    {
+        pS->WriteUChar( LINE ); //line
+        HandleNodes(pTemp,nLevel+1);
+        pS->WriteUChar( END ); //options
+    }
+
+    if (nullptr != (pTemp = pNode->GetSubNode(2)))
+    {
+        pS->WriteUChar( LINE ); //line
+        HandleNodes(pTemp,nLevel+1);
+        pS->WriteUChar( END ); //options
+    }
+    pS->WriteUChar( END );
+}
+
+void MathType::HandleOperator(SmNode *pNode,int nLevel)
+{
+    if (HandleLim(pNode,nLevel))
+        return;
+
+    sal_uInt64 nPos;
+    sal_uInt8 nVariation;
+
+    switch (pNode->GetToken().eType)
+    {
+        case TIINT:
+        case TIIINT:
+        case TLINT:
+        case TLLINT:
+        case TLLLINT:
+            nVariation=HandleCScript(pNode->GetSubNode(0),
+                pNode->GetSubNode(1),nLevel,&nPos,false);
+            break;
+        default:
+            nVariation=HandleCScript(pNode->GetSubNode(0),
+                pNode->GetSubNode(1),nLevel,&nPos);
+            break;
+    }
+
+    sal_uInt8 nOldVariation=nVariation;
+    sal_uInt8 nIntVariation=nVariation;
+
+    sal_uInt64 nPos2=0;
+    if (nVariation != 0xff)
+    {
+        nPos2 = pS->Tell();
+        pS->Seek(nPos);
+        if (nVariation == 2)
+        {
+            nIntVariation=0;
+            nVariation = 1;
+        }
+        else if (nVariation == 0)
+            nVariation = 1;
+        else if (nVariation == 1)
+            nVariation = 0;
+    }
+    else
+    {
+        nVariation = 2;
+        nIntVariation=0;
+    }
+    pS->WriteUChar( TMPL );
+    switch(pNode->GetToken().eType)
+    {
+    case TINT:
+    case TINTD:
+        if (nOldVariation != 0xff)
+            pS->WriteUChar( 0x18 ); //selector
+        else
+            pS->WriteUChar( 0x15 ); //selector
+        pS->WriteUChar( nIntVariation ); //variation
+        break;
+    case TIINT:
+        if (nOldVariation != 0xff)
+        {
+            pS->WriteUChar( 0x19 );
+            pS->WriteUChar( 0x01 );
+        }
+        else
+        {
+            pS->WriteUChar( 0x16 );
+            pS->WriteUChar( 0x00 );
+        }
+        break;
+    case TIIINT:
+        if (nOldVariation != 0xff)
+        {
+            pS->WriteUChar( 0x1a );
+            pS->WriteUChar( 0x01 );
+        }
+        else
+        {
+            pS->WriteUChar( 0x17 );
+            pS->WriteUChar( 0x00 );
+        }
+        break;
+    case TLINT:
+        if (nOldVariation != 0xff)
+        {
+            pS->WriteUChar( 0x18 );
+            pS->WriteUChar( 0x02 );
+        }
+        else
+        {
+            pS->WriteUChar( 0x15 );
+            pS->WriteUChar( 0x03 );
+        }
+        break;
+    case TLLINT:
+        if (nOldVariation != 0xff)
+        {
+            pS->WriteUChar( 0x19 );
+            pS->WriteUChar( 0x00 );
+        }
+        else
+        {
+            pS->WriteUChar( 0x16 );
+            pS->WriteUChar( 0x02 );
+        }
+        break;
+    case TLLLINT:
+        if (nOldVariation != 0xff)
+        {
+            pS->WriteUChar( 0x1a );
+            pS->WriteUChar( 0x00 );
+        }
+        else
+        {
+            pS->WriteUChar( 0x17 );
+            pS->WriteUChar( 0x02 );
+        }
+        break;
+    case TSUM:
+    default:
+        pS->WriteUChar( 0x1d );
+        pS->WriteUChar( nVariation );
+        break;
+    case TPROD:
+        pS->WriteUChar( 0x1f );
+        pS->WriteUChar( nVariation );
+        break;
+    case TCOPROD:
+        pS->WriteUChar( 0x21 );
+        pS->WriteUChar( nVariation );
+        break;
+    }
+    pS->WriteUChar( 0 ); //options
+
+    if (nPos2)
+        pS->Seek(nPos2);
+    else
+    {
+        pS->WriteUChar( LINE ); //line
+        HandleNodes(pNode->GetSubNode(1),nLevel+1);
+        pS->WriteUChar( END ); //line
+        pS->WriteUChar( LINE|0x10 );
+        pS->WriteUChar( LINE|0x10 );
+    }
+
+    pS->WriteUChar( 0x0D );
+    switch(pNode->GetToken().eType)
+    {
+    case TSUM:
+    default:
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x86 );
+        pS->WriteUInt16( 0x2211 );
+        break;
+    case TPROD:
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x86 );
+        pS->WriteUInt16( 0x220F );
+        break;
+    case TCOPROD:
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x8B );
+        pS->WriteUInt16( 0x2210 );
+        break;
+    case TIIINT:
+    case TLLLINT:
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x86 );
+        pS->WriteUInt16( 0x222B );
+        [[fallthrough]];
+    case TIINT:
+    case TLLINT:
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x86 );
+        pS->WriteUInt16( 0x222B );
+        [[fallthrough]];
+    case TINT:
+    case TINTD:
+    case TLINT:
+        pS->WriteUChar( CHAR );
+        pS->WriteUChar( 0x86 );
+        pS->WriteUInt16( 0x222B );
+        break;
+    }
+    pS->WriteUChar( END );
+    pS->WriteUChar( 0x0A );
+}
+
+
+bool MathType::HandlePile(int &rSetAlign, int nLevel, sal_uInt8 nSelector, sal_uInt8 nVariation)
+{
+    sal_uInt8 nVAlign;
+    pS->ReadUChar( nHAlign );
+    pS->ReadUChar( nVAlign );
+
+    HandleAlign(nHAlign, rSetAlign);
+
+    rRet.append(" stack {\n");
+    bool bRet = HandleRecords( nLevel+1, nSelector, nVariation, -1, -1 );
+    int nRemoveFrom = rRet.getLength() >= 3 ? rRet.getLength() - 3 : 0;
+    rRet.remove(nRemoveFrom, 2);
+    rRet.append("} ");
+
+    while (rSetAlign)
+    {
+        rRet.append("} ");
+        rSetAlign--;
+    }
+    return bRet;
+}
+
+bool MathType::HandleMatrix(int nLevel, sal_uInt8 nSelector, sal_uInt8 nVariation)
+{
+    sal_uInt8 nH_just,nV_just,nRows,nCols,nVAlign;
+    pS->ReadUChar( nVAlign );
+    pS->ReadUChar( nH_just );
+    pS->ReadUChar( nV_just );
+    pS->ReadUChar( nRows );
+    pS->ReadUChar( nCols );
+    int nBytes = ((nRows+1)*2)/8;
+    if (((nRows+1)*2)%8)
+        nBytes++;
+    pS->SeekRel(nBytes);
+    nBytes = ((nCols+1)*2)/8;
+    if (((nCols+1)*2)%8)
+        nBytes++;
+    pS->SeekRel(nBytes);
+    rRet.append(" matrix {\n");
+    bool bRet = HandleRecords( nLevel+1, nSelector, nVariation, nRows, nCols );
+
+    sal_Int32 nI = rRet.lastIndexOf('#');
+    if (nI > 0)
+        if (rRet[nI-1] != '#')  //missing column
+            rRet.append("{}");
+
+    rRet.append("\n} ");
+    return bRet;
+}
+
+bool MathType::HandleTemplate(int nLevel, sal_uInt8 &rSelector,
+    sal_uInt8 &rVariation, sal_Int32 &rLastTemplateBracket)
+{
+    sal_uInt8 nOption; //This appears utterly unused
+    pS->ReadUChar( rSelector );
+    pS->ReadUChar( rVariation );
+    pS->ReadUChar( nOption );
+    OSL_ENSURE(rSelector < 48,"Selector out of range");
+    if ((rSelector >= 21) && (rSelector <=26))
+    {
+        OSL_ENSURE(nOption < 2,"Option out of range");
+    }
+    else if (rSelector <= 12)
+    {
+        OSL_ENSURE(nOption < 3,"Option out of range");
+    }
+
+    //For the (broken) case where one subscript template ends, and there is
+    //another one after it, mathtype handles it as if the second one was
+    //inside the first one and renders it as sub of sub
+    bool bRemove=false;
+    if ( (rSelector == 0xf) && (rLastTemplateBracket != -1) )
+    {
+        bRemove=true;
+        for (sal_Int32 nI = rLastTemplateBracket+1; nI < rRet.getLength(); nI++ )
+            if (rRet[nI] != ' ')
+            {
+                bRemove=false;
+                break;
+            }
+    }
+
+    //suborderlist
+    bool bRet = HandleRecords( nLevel+1, rSelector, rVariation );
+
+    if (bRemove)
+    {
+        if (rLastTemplateBracket < rRet.getLength())
+            rRet.remove(rLastTemplateBracket, 1);
+        rRet.append("} ");
+        rLastTemplateBracket = -1;
+    }
+    if (rSelector == 0xf)
+        rLastTemplateBracket = rRet.lastIndexOf('}');
+    else
+        rLastTemplateBracket = -1;
+
+    rSelector = sal::static_int_cast< sal_uInt8 >(-1);
+    return bRet;
+}
+
+void MathType::HandleEmblishments()
+{
+    sal_uInt8 nEmbel;
+    do
+    {
+        pS->ReadUChar( nEmbel );
+        if (!pS->good())
+            break;
+        switch (nEmbel)
+        {
+        case 0x02:
+            rRet.append(" dot ");
+            break;
+        case 0x03:
+            rRet.append(" ddot ");
+            break;
+        case 0x04:
+            rRet.append(" dddot ");
+            break;
+        case 0x05:
+            if (!nPostSup)
+            {
+                sPost.append(" sup {}");
+                nPostSup = sPost.getLength();
+            }
+            sPost.insert(nPostSup-1," ' ");
+            nPostSup += 3;
+            break;
+        case 0x06:
+            if (!nPostSup)
+            {
+                sPost.append(" sup {}");
+                nPostSup = sPost.getLength();
+            }
+            sPost.insert(nPostSup-1," '' ");
+            nPostSup += 4;
+            break;
+        case 0x07:
+            if (!nPostlSup)
+            {
+                sPost.append(" lsup {}");
+                nPostlSup = sPost.getLength();
+            }
+            sPost.insert(nPostlSup-1," ' ");
+            nPostlSup += 3;
+            break;
+        case 0x08:
+            rRet.append(" tilde ");
+            break;
+        case 0x09:
+            rRet.append(" hat ");
+            break;
+        case 0x0b:
+            rRet.append(" vec ");
+            break;
+        case 0x10:
+            rRet.append(" overstrike ");
+            break;
+        case 0x11:
+            rRet.append(" bar ");
+            break;
+        case 0x12:
+            if (!nPostSup)
+            {
+                sPost.append(" sup {}");
+                nPostSup = sPost.getLength();
+            }
+            sPost.insert(nPostSup-1," ''' ");
+            nPostSup += 5;
+            break;
+        case 0x14:
+            rRet.append(" breve ");
+            break;
+        default:
+            OSL_ENSURE(nEmbel < 21,"Embel out of range");
+            break;
+        }
+        if (nVersion < 3)
+            break;
+    }while (nEmbel);
+}
+
+void MathType::HandleSetSize()
+{
+    sal_uInt8 nTemp;
+    pS->ReadUChar( nTemp );
+    switch (nTemp)
+    {
+        case 101:
+            pS->ReadInt16( nLSize );
+            nLSize = -nLSize;
+            break;
+        case 100:
+            pS->ReadUChar( nTemp );
+            nLSize = nTemp;
+            pS->ReadInt16( nDSize );
+            break;
+        default:
+            nLSize = nTemp;
+            pS->ReadUChar( nTemp );
+            nDSize = nTemp-128;
+            break;
+    }
+}
+
+bool MathType::HandleChar(sal_Int32 &rTextStart, int &rSetSize, int nLevel,
+    sal_uInt8 nTag, sal_uInt8 nSelector, sal_uInt8 nVariation, bool bSilent)
+{
+    sal_Unicode nChar(0);
+    bool bRet = true;
+
+    if (xfAUTO(nTag))
+    {
+    //This is a candidate for function recognition, whatever
+    //that is!
+    }
+
+    sal_uInt8 nOldTypeFace = nTypeFace;
+    pS->ReadUChar( nTypeFace );
+    if (nVersion < 3)
+    {
+        sal_uInt8 nChar8(0);
+        pS->ReadUChar( nChar8 );
+        nChar = nChar8;
+    }
+    else
+        pS->ReadUtf16( nChar );
+
+    /*
+    bad character, old mathtype < 3 has these
+    */
+    if (nChar < 0x20)
+        return bRet;
+
+    if (xfEMBELL(nTag))
+    {
+        //A bit tricky, the character emblishments for
+        //mathtype can all be listed after each other, in
+        //starmath some must go before the character and some
+        //must go after. In addition some of the emblishments
+        //may repeated and in starmath some of these groups
+        //must be gathered together. sPost is the portion that
+        //follows the char and nPostSup and nPostlSup are the
+        //indexes at which this class of emblishment is
+        //collated together
+        sPost = "";
+        nPostSup = nPostlSup = 0;
+        int nOriglen=rRet.getLength()-rTextStart;
+        rRet.append(" {");  // #i24340# make what would be "vec {A}_n" become "{vec {A}}_n"
+        if ((!bSilent) && (nOriglen > 1))
+            rRet.append("\"");
+        bRet = HandleRecords( nLevel+1, nSelector, nVariation );
+        if (!bSilent)
+        {
+            if (nOriglen > 1)
+            {
+                OUString aStr;
+                TypeFaceToString(aStr,nOldTypeFace);
+                aStr += "\"";
+                rRet.insert(std::min(rTextStart, rRet.getLength()), aStr);
+
+                aStr.clear();
+                TypeFaceToString(aStr,nTypeFace);
+                rRet.append(aStr).append("{");
+            }
+            else
+                rRet.append(" {");
+            rTextStart = rRet.getLength();
+        }
+    }
+
+    if (!bSilent)
+    {
+        sal_Int32 nOldLen = rRet.getLength();
+        if (
+            HandleSize(nLSize,nDSize,rSetSize) ||
+            (nOldTypeFace != nTypeFace)
+           )
+        {
+            if ((nOldLen - rTextStart) > 1)
+            {
+                rRet.insert(nOldLen, "\"");
+                OUString aStr;
+                TypeFaceToString(aStr,nOldTypeFace);
+                aStr += "\"";
+                rRet.insert(rTextStart,aStr);
+            }
+            rTextStart = rRet.getLength();
+        }
+        nOldLen = rRet.getLength();
+        if (!LookupChar(nChar,rRet,nVersion,nTypeFace))
+        {
+            if (nOldLen - rTextStart > 1)
+            {
+                rRet.insert(nOldLen, "\"");
+                OUString aStr;
+                TypeFaceToString(aStr,nOldTypeFace);
+                aStr += "\"";
+                rRet.insert(rTextStart, aStr);
+            }
+            rTextStart = rRet.getLength();
+        }
+        lcl_PrependDummyTerm(rRet, rTextStart);
+    }
+
+    if ((xfEMBELL(nTag)) && (!bSilent))
+    {
+        rRet.append("}}").append(sPost);  // #i24340# make what would be "vec {A}_n" become "{vec {A}}_n"
+        rTextStart = rRet.getLength();
+    }
+    return bRet;
+}
+
+bool MathType::HandleLim(SmNode *pNode,int nLevel)
+{
+    bool bRet=false;
+    //Special case for the "lim" option in StarMath
+    if ((pNode->GetToken().eType == TLIM)
+        || (pNode->GetToken().eType == TLIMSUP)
+        || (pNode->GetToken().eType == TLIMINF)
+        )
+    {
+        if (pNode->GetSubNode(1))
+        {
+            sal_uInt8 nVariation2=HandleCScript(pNode->GetSubNode(0),nullptr,
+                nLevel);
+
+            pS->WriteUChar( 0x0A );
+            pS->WriteUChar( LINE ); //line
+            pS->WriteUChar( CHAR|0x10 );
+            pS->WriteUChar( 0x82 );
+            pS->WriteUInt16( 'l' );
+            pS->WriteUChar( CHAR|0x10 );
+            pS->WriteUChar( 0x82 );
+            pS->WriteUInt16( 'i' );
+            pS->WriteUChar( CHAR|0x10 );
+            pS->WriteUChar( 0x82 );
+            pS->WriteUInt16( 'm' );
+
+            if (pNode->GetToken().eType == TLIMSUP)
+            {
+                pS->WriteUChar( CHAR ); //some space
+                pS->WriteUChar( 0x98 );
+                pS->WriteUInt16( 0xEB04 );
+
+                pS->WriteUChar( CHAR|0x10 );
+                pS->WriteUChar( 0x82 );
+                pS->WriteUInt16( 's' );
+                pS->WriteUChar( CHAR|0x10 );
+                pS->WriteUChar( 0x82 );
+                pS->WriteUInt16( 'u' );
+                pS->WriteUChar( CHAR|0x10 );
+                pS->WriteUChar( 0x82 );
+                pS->WriteUInt16( 'p' );
+            }
+            else if (pNode->GetToken().eType == TLIMINF)
+            {
+                pS->WriteUChar( CHAR ); //some space
+                pS->WriteUChar( 0x98 );
+                pS->WriteUInt16( 0xEB04 );
+
+                pS->WriteUChar( CHAR|0x10 );
+                pS->WriteUChar( 0x82 );
+                pS->WriteUInt16( 'i' );
+                pS->WriteUChar( CHAR|0x10 );
+                pS->WriteUChar( 0x82 );
+                pS->WriteUInt16( 'n' );
+                pS->WriteUChar( CHAR|0x10 );
+                pS->WriteUChar( 0x82 );
+                pS->WriteUInt16( 'f' );
+            }
+
+
+            pS->WriteUChar( CHAR ); //some space
+            pS->WriteUChar( 0x98 );
+            pS->WriteUInt16( 0xEB04 );
+
+            if (nVariation2 != 0xff)
+            {
+                pS->WriteUChar( END );
+                pS->WriteUChar( END );
+            }
+            HandleNodes(pNode->GetSubNode(1),nLevel+1);
+            bRet = true;
+        }
+    }
+    return bRet;
+}
+
+void MathType::HandleMAlign(SmNode *pNode,int nLevel)
+{
+    sal_uInt8 nPushedHAlign=nHAlign;
+    switch(pNode->GetToken().eType)
+    {
+        case TALIGNC:
+            nHAlign=2;
+            break;
+        case TALIGNR:
+            nHAlign=3;
+            break;
+        default:
+            nHAlign=1;
+            break;
+    }
+    size_t nSize = pNode->GetNumSubNodes();
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (SmNode *pTemp = pNode->GetSubNode(i))
+            HandleNodes(pTemp,nLevel+1);
+    }
+    nHAlign=nPushedHAlign;
+}
+
+void MathType::HandleMath(SmNode *pNode)
+{
+    if (pNode->GetToken().eType == TMLINE)
+    {
+        pS->WriteUChar( END );
+        pS->WriteUChar( LINE );
+        bIsReInterpBrace=true;
+        return;
+    }
+    SmMathSymbolNode *pTemp = static_cast<SmMathSymbolNode *>(pNode);
+    for(sal_Int32 i=0;i<pTemp->GetText().getLength();i++)
+    {
+        sal_Unicode nArse = SmTextNode::ConvertSymbolToUnicode(pTemp->GetText()[i]);
+        if ((nArse == 0x2224) || (nArse == 0x2288) || (nArse == 0x2285) ||
+            (nArse == 0x2289))
+        {
+            pS->WriteUChar( CHAR|0x20 );
+        }
+        else if (nPendingAttributes &&
+                (i == ((pTemp->GetText().getLength()+1)/2)-1))
+            {
+                pS->WriteUChar( 0x22 );
+            }
+        else
+            pS->WriteUChar( CHAR ); //char without formula recognition
+        //The typeface seems to be MTEXTRA for unicode characters,
+        //though how to determine when mathtype chooses one over
+        //the other is unknown. This should do the trick
+        //nevertheless.
+        sal_uInt8 nBias;
+        if ( (nArse == 0x2213) || (nArse == 0x2218) ||
+            (nArse == 0x210F) || (
+                (nArse >= 0x22EE) && (nArse <= 0x22FF)
+            ))
+        {
+            nBias = 0xB; //typeface
+        }
+        else if ((nArse == 0x2F) || (nArse == 0x2225))
+            nBias = 0x2; //typeface
+        else if ((nArse > 0x2000) || (nArse == 0x00D7))
+            nBias = 0x6; //typeface
+        else if (nArse == 0x3d1)
+            nBias = 0x4;
+        else if ((nArse > 0xFF) && ((nArse < 0x393) || (nArse > 0x3c9)))
+            nBias = 0xB; //typeface
+        else
+            nBias = 0x3; //typeface
+
+        pS->WriteUChar( nSpec+nBias+128 ); //typeface
+
+        if (nArse == 0x2224)
+        {
+            pS->WriteUInt16( 0x7C );
+            pS->WriteUChar( EMBEL );
+            pS->WriteUChar( 0x0A );
+            pS->WriteUChar( END ); //end embel
+            pS->WriteUChar( END ); //end embel
+        }
+        else if (nArse == 0x2225)
+            pS->WriteUInt16( 0xEC09 );
+        else if (nArse == 0xE421)
+            pS->WriteUInt16( 0x2265 );
+        else if (nArse == 0x230A)
+            pS->WriteUInt16( 0xF8F0 );
+        else if (nArse == 0x230B)
+            pS->WriteUInt16( 0xF8FB );
+        else if (nArse == 0xE425)
+            pS->WriteUInt16( 0x2264 );
+        else if (nArse == 0x226A)
+        {
+            pS->WriteUInt16( 0x3C );
+            pS->WriteUChar( CHAR );
+            pS->WriteUChar( 0x98 );
+            pS->WriteUInt16( 0xEB01 );
+            pS->WriteUChar( CHAR );
+            pS->WriteUChar( 0x86 );
+            pS->WriteUInt16( 0x3c );
+        }
+        else if (nArse == 0x2288)
+        {
+            pS->WriteUInt16( 0x2286 );
+            pS->WriteUChar( EMBEL );
+            pS->WriteUChar( 0x0A );
+            pS->WriteUChar( END ); //end embel
+            pS->WriteUChar( END ); //end embel
+        }
+        else if (nArse == 0x2289)
+        {
+            pS->WriteUInt16( 0x2287 );
+            pS->WriteUChar( EMBEL );
+            pS->WriteUChar( 0x0A );
+            pS->WriteUChar( END ); //end embel
+            pS->WriteUChar( END ); //end embel
+        }
+        else if (nArse == 0x2285)
+        {
+            pS->WriteUInt16( 0x2283 );
+            pS->WriteUChar( EMBEL );
+            pS->WriteUChar( 0x0A );
+            pS->WriteUChar( END ); //end embel
+            pS->WriteUChar( END ); //end embel
+        }
+        else
+            pS->WriteUInt16( nArse );
+    }
+    nPendingAttributes = 0;
+}
+
+void MathType::HandleAttributes(SmNode *pNode,int nLevel)
+{
+    int nOldPending = 0;
+    SmNode *pTemp       = nullptr;
+    SmTextNode *pIsText = nullptr;
+
+    if (nullptr != (pTemp = pNode->GetSubNode(0)))
+    {
+        pIsText = static_cast<SmTextNode *>(pNode->GetSubNode(1));
+
+        switch (pTemp->GetToken().eType)
+        {
+        case TWIDEVEC:
+            //there's just no way we can now handle any character
+            //attributes (from mathtypes perspective) centered
+            //over an expression but above template attributes
+            //such as widevec and similar constructs
+            //we have to drop them
+            nOldPending = StartTemplate(0x2f,0x01);
+            break;
+        case TCHECK: //Not Exportable
+        case TACUTE: //Not Exportable
+        case TGRAVE: //Not Exportable
+        case TCIRCLE: //Not Exportable
+        case TWIDEHARPOON: //Not Exportable
+        case TWIDETILDE: //Not Exportable
+        case TWIDEHAT: //Not Exportable
+            break;
+        case TUNDERLINE:
+            nOldPending = StartTemplate(0x10);
+            break;
+        case TOVERLINE: //If the next node is not text
+                        //or text with more than one char
+            if ((pIsText->GetToken().eType != TTEXT) ||
+                (pIsText->GetText().getLength() > 1))
+                nOldPending = StartTemplate(0x11);
+            break;
+        default:
+            nPendingAttributes++;
+            break;
+        }
+    }
+
+    if (pIsText)
+        HandleNodes(pIsText,nLevel+1);
+
+    switch (pTemp->GetToken().eType)
+    {
+        case TWIDEVEC:
+        case TUNDERLINE:
+            EndTemplate(nOldPending);
+            break;
+        case TOVERLINE:
+            if ((pIsText->GetToken().eType != TTEXT) ||
+                (pIsText->GetText().getLength() > 1))
+                EndTemplate(nOldPending);
+            break;
+        default:
+            break;
+    }
+
+    //if there was no suitable place to put the attribute,
+    //then we have to just give up on it
+    if (nPendingAttributes)
+        nPendingAttributes--;
+    else
+    {
+        if ((nInsertion != 0) && nullptr != (pTemp = pNode->GetSubNode(0)))
+        {
+            auto nPos = pS->Tell();
+            nInsertion--;
+            pS->Seek(nInsertion);
+            switch(pTemp->GetToken().eType)
+            {
+            case TACUTE: //Not Exportable
+            case TGRAVE: //Not Exportable
+            case TCIRCLE: //Not Exportable
+                break;
+            case TCDOT:
+                pS->WriteUChar( 2 );
+                break;
+            case TDDOT:
+                pS->WriteUChar( 3 );
+                break;
+            case TDDDOT:
+                pS->WriteUChar( 4 );
+                break;
+            case TTILDE:
+                pS->WriteUChar( 8 );
+                break;
+            case THAT:
+                pS->WriteUChar( 9 );
+                break;
+            case TVEC:
+                pS->WriteUChar( 11 );
+                break;
+            case TOVERSTRIKE:
+                pS->WriteUChar( 16 );
+                break;
+            case TOVERLINE:
+                if ((pIsText->GetToken().eType == TTEXT) &&
+                    (pIsText->GetText().getLength() == 1))
+                    pS->WriteUChar( 17 );
+                break;
+            case TBREVE:
+                pS->WriteUChar( 20 );
+                break;
+            case TWIDEVEC:
+            case TWIDEHARPOON:
+            case TUNDERLINE:
+            case TWIDETILDE:
+            case TWIDEHAT:
+                break;
+            case TBAR:
+                pS->WriteUChar( 17 );
+                break;
+            default:
+                pS->WriteUChar( 2 );
+                break;
+            }
+            pS->Seek(nPos);
+        }
+    }
+}
+
+void MathType::HandleText(SmNode *pNode)
+{
+    SmTextNode *pTemp = static_cast<SmTextNode *>(pNode);
+    for(sal_Int32 i=0;i<pTemp->GetText().getLength();i++)
+    {
+        if (nPendingAttributes &&
+            (i == ((pTemp->GetText().getLength()+1)/2)-1))
+        {
+            pS->WriteUChar( 0x22 );     //char, with attributes right
+                                //after the character
+        }
+        else
+            pS->WriteUChar( CHAR );
+
+        sal_uInt8 nFace = 0x1;
+        if (pNode->GetFont().GetItalic() == ITALIC_NORMAL)
+            nFace = 0x3;
+        else if (pNode->GetFont().GetWeight() == WEIGHT_BOLD)
+            nFace = 0x7;
+        pS->WriteUChar( nFace+128 ); //typeface
+        sal_uInt16 nChar = pTemp->GetText()[i];
+        pS->WriteUInt16( SmTextNode::ConvertSymbolToUnicode(nChar) );
+
+        //Mathtype can only have these sort of character
+        //attributes on a single character, starmath can put them
+        //anywhere, when the entity involved is a text run this is
+        //a large effort to place the character attribute on the
+        //central mathtype character so that it does pretty much
+        //what the user probably has in mind. The attributes
+        //filled in here are dummy ones which are replaced in the
+        //ATTRIBUT handler if a suitable location for the
+        //attributes was found here. Unfortunately it is
+        //possible for starmath to place character attributes on
+        //entities which cannot occur in mathtype e.g. a Summation
+        //symbol so these attributes may be lost
+        if (nPendingAttributes &&
+            (i == ((pTemp->GetText().getLength()+1)/2)-1))
+        {
+            pS->WriteUChar( EMBEL );
+            while (nPendingAttributes)
+            {
+                pS->WriteUChar( 2 );
+                //wedge the attributes in here and clear
+                //the pending stack
+                nPendingAttributes--;
+            }
+            nInsertion=pS->Tell();
+            pS->WriteUChar( END ); //end embel
+            pS->WriteUChar( END ); //end embel
+        }
+    }
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT bool TestImportMathType(SvStream &rStream)
+{
+    OUStringBuffer sText;
+    MathType aEquation(sText);
+    bool bRet = false;
+    try
+    {
+        bRet = aEquation.Parse(&rStream);
+    }
+    catch (const std::out_of_range&)
+    {
+    }
+    return bRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/mathtype.hxx b/starmath/source/mathtype.hxx
new file mode 100644
index 000000000..1e3a744d7
--- /dev/null
+++ b/starmath/source/mathtype.hxx
@@ -0,0 +1,193 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_MATHTYPE_HXX
+#define INCLUDED_STARMATH_SOURCE_MATHTYPE_HXX
+
+#include <rtl/ustring.hxx>
+#include <rtl/ustrbuf.hxx>
+
+#include <set>
+#include <vector>
+
+class SfxMedium;
+class SmMatrixNode;
+class SmNode;
+class SotStorage;
+class SvStream;
+
+class MathTypeFont
+{
+public:
+    sal_uInt8 nTface;
+    sal_uInt8 nStyle;
+    MathTypeFont() : nTface(0),nStyle(0) {}
+    explicit MathTypeFont(sal_uInt8 nFace) : nTface(nFace),nStyle(0) {}
+    void AppendStyleToText(OUString &rS);
+};
+
+struct LessMathTypeFont
+{
+    bool operator() (const MathTypeFont &rValue1,
+        const MathTypeFont &rValue2) const
+    {
+        return rValue1.nTface < rValue2.nTface;
+    }
+};
+
+typedef ::std::set< MathTypeFont, LessMathTypeFont > MathTypeFontSet;
+
+class MathType
+{
+public:
+    explicit MathType(OUStringBuffer &rIn)
+        : nVersion(0)
+        , pS(nullptr)
+        , rRet(rIn)
+        , pTree(nullptr)
+        , nHAlign(0)
+        , nPendingAttributes(0)
+        , nInsertion(0)
+        , nLSize(0)
+        , nDSize(0)
+        , nCurSize(0)
+        , nLastSize(0)
+        , nSpec(0)
+        , bIsReInterpBrace(false)
+        , nPostSup(0)
+        , nPostlSup(0)
+        , nTypeFace(0)
+    {
+        Init();
+    }
+
+    MathType(OUStringBuffer &rIn,SmNode *pIn)
+        : nVersion(0)
+        , pS(nullptr)
+        , rRet(rIn)
+        , pTree(pIn)
+        , nHAlign(2)
+        , nPendingAttributes(0)
+        , nInsertion(0)
+        , nLSize(0)
+        , nDSize(0)
+        , nCurSize(0)
+        , nLastSize(0)
+        , nSpec(0)
+        , bIsReInterpBrace(false)
+        , nPostSup(0)
+        , nPostlSup(0)
+        , nTypeFace(0)
+    {
+        Init();
+    }
+
+    bool Parse(SotStorage* pStor);
+    bool Parse(SvStream* pStream);
+    bool ConvertFromStarMath( SfxMedium& rMedium );
+
+private:
+/*Ver 2 Header*/
+    sal_uInt8 nVersion;
+
+    SvStream* pS;
+
+    void Init();
+
+    bool HandleRecords(int nLevel, sal_uInt8 nSelector =0xFF,
+        sal_uInt8 nVariation =0xFF, int nRows =0, int nCols =0);
+    bool HandleSize(sal_Int16 nLSize, sal_Int16 nDSize, int &rSetSize);
+    void HandleAlign(sal_uInt8 nHAlign, int &rSetAlign);
+    bool HandlePile(int &rSetAlign, int nLevel, sal_uInt8 nSelector, sal_uInt8 nVariation);
+    bool HandleMatrix(int nLevel, sal_uInt8 nSelector, sal_uInt8 nVariarion);
+    void HandleMatrixSeparator(int nMatrixRows, int nMatrixCols, int &rCurCol, int &rCurRow);
+    bool HandleTemplate(int nLevel, sal_uInt8 &rSelector, sal_uInt8 &rVariation,
+        sal_Int32 &rLastTemplateBracket);
+    void HandleEmblishments();
+    void HandleSetSize();
+    bool HandleChar(sal_Int32 &rTextStart, int &rSetSize, int nLevel,
+        sal_uInt8 nTag, sal_uInt8 nSelector, sal_uInt8 nVariation, bool bSilent);
+    void HandleNudge();
+
+    static int xfLMOVE(sal_uInt8 nTest) {return nTest&0x80;}
+    static int xfAUTO(sal_uInt8 nTest) {return nTest&0x10;}
+    static int xfEMBELL(sal_uInt8 nTest) {return nTest&0x20;}
+    static int xfNULL(sal_uInt8 nTest) {return nTest&0x10;}
+
+    void HandleNodes(SmNode *pNode,int nLevel);
+    int StartTemplate(sal_uInt16 nSelector,sal_uInt16 nVariation=0);
+    void EndTemplate(int nOldPendingAttributes);
+    void HandleSmMatrix(SmMatrixNode *pMatrix,int nLevel);
+    void HandleTable(SmNode *pNode,int nLevel);
+    void HandleRoot(SmNode *pNode,int nLevel);
+    void HandleSubSupScript(SmNode *pNode,int nLevel);
+    sal_uInt8 HandleCScript(SmNode *pNode,SmNode *pContent,int nLevel,
+        sal_uInt64 *pPos=nullptr,bool bTest=true);
+    void HandleFractions(SmNode *pNode,int nLevel);
+    void HandleBrace(SmNode *pNode,int nLevel);
+    void HandleVerticalBrace(SmNode *pNode,int nLevel);
+    void HandleOperator(SmNode *pNode,int nLevel);
+    bool HandleLim(SmNode *pNode,int nLevel);
+    void HandleMAlign(SmNode *pNode,int nLevel);
+    void HandleMath(SmNode *pNode);
+    void HandleText(SmNode *pNode);
+    void HandleAttributes(SmNode *pNode,int nLevel);
+    void TypeFaceToString(OUString &rRet,sal_uInt8 nFace);
+
+    OUStringBuffer &rRet;
+    SmNode *pTree;
+
+    sal_uInt8 nHAlign;
+
+    int nPendingAttributes;
+    sal_uInt64 nInsertion;
+
+    std::vector<sal_Int16> aSizeTable;
+    sal_Int16 nLSize;
+    sal_Int16 nDSize;
+    sal_Int16 nCurSize;
+    sal_Int16 nLastSize;
+    sal_uInt8 nSpec;
+    bool  bIsReInterpBrace;
+    OUStringBuffer sPost;
+    sal_Int32 nPostSup;
+    sal_Int32 nPostlSup;
+    sal_uInt8 nTypeFace;
+    MathTypeFontSet aUserStyles;
+
+    enum MTOKENS {END,LINE,CHAR,TMPL,PILE,MATRIX,EMBEL,RULER,FONT,SIZE};
+    enum MTEMPLATES
+    {
+        tmANGLE,tmPAREN,tmBRACE,tmBRACK,tmBAR,tmDBAR,tmFLOOR,tmCEILING,
+        tmLBLB,tmRBRB,tmRBLB,tmLBRP,tmLPRB,tmROOT,tmFRACT,tmSCRIPT,tmUBAR,
+        tmOBAR,tmLARROW,tmRARROW,tmBARROW,tmSINT,tmDINT,tmTINT,tmSSINT,
+        tmDSINT,tmTSINT,tmUHBRACE,tmLHBRACE,tmSUM,tmISUM,tmPROD,tmIPROD,
+        tmCOPROD,tmICOPROD,tmUNION,tmIUNION,tmINTER,tmIINTER,tmLIM,tmLDIV,
+        tmSLFRACT,tmINTOP,tmSUMOP,tmLSCRIPT,tmDIRAC,tmUARROW,tmOARROW,
+        tmOARC
+    };
+public:
+    static bool LookupChar(sal_Unicode nChar,OUStringBuffer &rRet,
+        sal_uInt8 nVersion,sal_uInt8 nTypeFace=0);
+};
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/node.cxx b/starmath/source/node.cxx
new file mode 100644
index 000000000..526b2e3ee
--- /dev/null
+++ b/starmath/source/node.cxx
@@ -0,0 +1,2940 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <node.hxx>
+#include <parse.hxx>
+#include <rect.hxx>
+#include <symbol.hxx>
+#include <smmod.hxx>
+#include "mathtype.hxx"
+#include "tmpdevice.hxx"
+#include <visitors.hxx>
+
+#include <comphelper/string.hxx>
+#include <tools/color.hxx>
+#include <tools/fract.hxx>
+#include <tools/gen.hxx>
+#include <vcl/metric.hxx>
+#include <vcl/outdev.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+#include <rtl/math.hxx>
+
+#include <cassert>
+#include <math.h>
+#include <memory>
+#include <float.h>
+#include <vector>
+
+namespace {
+
+template<typename F>
+void ForEachNonNull(SmNode *pNode, F && f)
+{
+    size_t nSize = pNode->GetNumSubNodes();
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        SmNode *pSubNode = pNode->GetSubNode(i);
+        if (pSubNode != nullptr)
+            f(pSubNode);
+    }
+}
+
+}
+
+SmNode::SmNode(SmNodeType eNodeType, const SmToken &rNodeToken)
+    : maNodeToken( rNodeToken )
+    , meType( eNodeType )
+    , meScaleMode( SmScaleMode::None )
+    , meRectHorAlign( RectHorAlign::Left )
+    , mnFlags( FontChangeMask::None )
+    , mnAttributes( FontAttribute::None )
+    , mbIsPhantom( false )
+    , mbIsSelected( false )
+    , mnAccIndex( -1 )
+    , mpParentNode( nullptr )
+{
+}
+
+SmNode::~SmNode()
+{
+}
+
+const SmNode * SmNode::GetLeftMost() const
+    //  returns leftmost node of current subtree.
+    //! (this assumes the one with index 0 is always the leftmost subnode
+    //! for the current node).
+{
+    const SmNode *pNode = GetNumSubNodes() > 0 ?
+                        GetSubNode(0) : nullptr;
+
+    return pNode ? pNode->GetLeftMost() : this;
+}
+
+
+void SmNode::SetPhantom(bool bIsPhantomP)
+{
+    if (! (Flags() & FontChangeMask::Phantom))
+        mbIsPhantom = bIsPhantomP;
+
+    bool b = mbIsPhantom;
+    ForEachNonNull(this, [b](SmNode *pNode){pNode->SetPhantom(b);});
+}
+
+
+void SmNode::SetColor(const Color& rColor)
+{
+    if (! (Flags() & FontChangeMask::Color))
+        GetFont().SetColor(rColor);
+
+    ForEachNonNull(this, [&rColor](SmNode *pNode){pNode->SetColor(rColor);});
+}
+
+
+void SmNode::SetAttribut(FontAttribute nAttrib)
+{
+    if (
+        (nAttrib == FontAttribute::Bold && !(Flags() & FontChangeMask::Bold)) ||
+        (nAttrib == FontAttribute::Italic && !(Flags() & FontChangeMask::Italic))
+       )
+    {
+        mnAttributes |= nAttrib;
+    }
+
+    ForEachNonNull(this, [nAttrib](SmNode *pNode){pNode->SetAttribut(nAttrib);});
+}
+
+
+void SmNode::ClearAttribut(FontAttribute nAttrib)
+{
+    if (
+        (nAttrib == FontAttribute::Bold && !(Flags() & FontChangeMask::Bold)) ||
+        (nAttrib == FontAttribute::Italic && !(Flags() & FontChangeMask::Italic))
+       )
+    {
+        mnAttributes &= ~nAttrib;
+    }
+
+    ForEachNonNull(this, [nAttrib](SmNode *pNode){pNode->ClearAttribut(nAttrib);});
+}
+
+
+void SmNode::SetFont(const SmFace &rFace)
+{
+    if (!(Flags() & FontChangeMask::Face))
+        GetFont() = rFace;
+
+    ForEachNonNull(this, [&rFace](SmNode *pNode){pNode->SetFont(rFace);});
+}
+
+
+void SmNode::SetFontSize(const Fraction &rSize, FontSizeType nType)
+    //! 'rSize' is in units of pts
+{
+    Size  aFntSize;
+
+    if (!(Flags() & FontChangeMask::Size))
+    {
+        Fraction  aVal (SmPtsTo100th_mm(rSize.GetNumerator()),
+                        rSize.GetDenominator());
+        long      nHeight = static_cast<long>(aVal);
+
+        aFntSize = GetFont().GetFontSize();
+        aFntSize.setWidth( 0 );
+        switch(nType)
+        {
+            case FontSizeType::ABSOLUT:
+                aFntSize.setHeight( nHeight );
+                break;
+
+            case FontSizeType::PLUS:
+                aFntSize.AdjustHeight(nHeight );
+                break;
+
+            case FontSizeType::MINUS:
+                aFntSize.AdjustHeight( -nHeight );
+                break;
+
+            case FontSizeType::MULTIPLY:
+                aFntSize.setHeight( static_cast<long>(Fraction(aFntSize.Height()) * rSize) );
+                break;
+
+            case FontSizeType::DIVIDE:
+                if (rSize != Fraction(0))
+                    aFntSize.setHeight( static_cast<long>(Fraction(aFntSize.Height()) / rSize) );
+                break;
+            default:
+                break;
+        }
+
+        // check the requested size against maximum value
+        static int const    nMaxVal = SmPtsTo100th_mm(128);
+        if (aFntSize.Height() > nMaxVal)
+            aFntSize.setHeight( nMaxVal );
+
+        GetFont().SetSize(aFntSize);
+    }
+
+    ForEachNonNull(this, [&rSize, &nType](SmNode *pNode){pNode->SetFontSize(rSize, nType);});
+}
+
+
+void SmNode::SetSize(const Fraction &rSize)
+{
+    GetFont() *= rSize;
+
+    ForEachNonNull(this, [&rSize](SmNode *pNode){pNode->SetSize(rSize);});
+}
+
+
+void SmNode::SetRectHorAlign(RectHorAlign eHorAlign, bool bApplyToSubTree )
+{
+    meRectHorAlign = eHorAlign;
+
+    if (bApplyToSubTree)
+        ForEachNonNull(this, [eHorAlign](SmNode *pNode){pNode->SetRectHorAlign(eHorAlign);});
+}
+
+
+void SmNode::PrepareAttributes()
+{
+    GetFont().SetWeight((Attributes() & FontAttribute::Bold)   ? WEIGHT_BOLD   : WEIGHT_NORMAL);
+    GetFont().SetItalic((Attributes() & FontAttribute::Italic) ? ITALIC_NORMAL : ITALIC_NONE);
+}
+
+
+void SmNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    if (nDepth > 1024)
+        throw std::range_error("parser depth limit");
+
+    mbIsPhantom  = false;
+    mnFlags      = FontChangeMask::None;
+    mnAttributes = FontAttribute::None;
+
+    switch (rFormat.GetHorAlign())
+    {   case SmHorAlign::Left:     meRectHorAlign = RectHorAlign::Left;   break;
+        case SmHorAlign::Center:   meRectHorAlign = RectHorAlign::Center; break;
+        case SmHorAlign::Right:    meRectHorAlign = RectHorAlign::Right;  break;
+    }
+
+    GetFont() = rFormat.GetFont(FNT_MATH);
+    OSL_ENSURE( GetFont().GetCharSet() == RTL_TEXTENCODING_UNICODE,
+            "unexpected CharSet" );
+    GetFont().SetWeight(WEIGHT_NORMAL);
+    GetFont().SetItalic(ITALIC_NONE);
+
+    ForEachNonNull(this, [&rFormat, &rDocShell, nDepth](SmNode *pNode){pNode->Prepare(rFormat, rDocShell, nDepth + 1);});
+}
+
+void SmNode::Move(const Point& rPosition)
+{
+    if (rPosition.X() == 0  &&  rPosition.Y() == 0)
+        return;
+
+    SmRect::Move(rPosition);
+
+    ForEachNonNull(this, [&rPosition](SmNode *pNode){pNode->Move(rPosition);});
+}
+
+void SmNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    auto nSize = GetNumSubNodes();
+    if (nSize > 1)
+        rText.append("{");
+    ForEachNonNull(this, [&rText](SmNode *pNode){pNode->CreateTextFromNode(rText);});
+    if (nSize > 1)
+    {
+        rText.stripEnd(' ');
+        rText.append("} ");
+    }
+}
+
+void SmNode::AdaptToX(OutputDevice &/*rDev*/, sal_uLong /*nWidth*/)
+{
+}
+
+
+void SmNode::AdaptToY(OutputDevice &/*rDev*/, sal_uLong /*nHeight*/)
+{
+}
+
+
+const SmNode * SmNode::FindTokenAt(sal_uInt16 nRow, sal_uInt16 nCol) const
+    // returns (first) ** visible ** (sub)node with the tokens text at
+    // position 'nRow', 'nCol'.
+    //! (there should be exactly one such node if any)
+{
+    if (    IsVisible()
+        &&  nRow == GetToken().nRow
+        &&  nCol >= GetToken().nCol  &&  nCol < GetToken().nCol + GetToken().aText.getLength())
+        return this;
+    else
+    {
+        size_t nNumSubNodes = GetNumSubNodes();
+        for (size_t i = 0;  i < nNumSubNodes; ++i)
+        {
+            const SmNode *pNode = GetSubNode(i);
+
+            if (!pNode)
+                continue;
+
+            const SmNode *pResult = pNode->FindTokenAt(nRow, nCol);
+            if (pResult)
+                return pResult;
+        }
+    }
+
+    return nullptr;
+}
+
+
+const SmNode * SmNode::FindRectClosestTo(const Point &rPoint) const
+{
+    long          nDist   = LONG_MAX;
+    const SmNode *pResult = nullptr;
+
+    if (IsVisible())
+        pResult = this;
+    else
+    {
+        size_t nNumSubNodes = GetNumSubNodes();
+        for (size_t i = 0;  i < nNumSubNodes; ++i)
+        {
+            const SmNode *pNode = GetSubNode(i);
+
+            if (!pNode)
+                continue;
+
+            const SmNode *pFound = pNode->FindRectClosestTo(rPoint);
+            if (pFound)
+            {
+                long nTmp = pFound->OrientedDist(rPoint);
+                if (nTmp < nDist)
+                {
+                    nDist   = nTmp;
+                    pResult = pFound;
+
+                    // quit immediately if 'rPoint' is inside the *should not
+                    // overlap with other rectangles* part.
+                    // This (partly) serves for getting the attributes in eg
+                    // "bar overstrike a".
+                    // ('nDist < 0' is used as *quick shot* to avoid evaluation of
+                    // the following expression, where the result is already determined)
+                    if (nDist < 0  &&  pFound->IsInsideRect(rPoint))
+                        break;
+                }
+            }
+        }
+    }
+
+    return pResult;
+}
+
+const SmNode * SmNode::FindNodeWithAccessibleIndex(sal_Int32 nAccIdx) const
+{
+    const SmNode *pResult = nullptr;
+
+    sal_Int32 nIdx = GetAccessibleIndex();
+    OUStringBuffer aTxt;
+    if (nIdx >= 0)
+        GetAccessibleText( aTxt );  // get text if used in following 'if' statement
+
+    if (nIdx >= 0
+        &&  nIdx <= nAccIdx  &&  nAccIdx < nIdx + aTxt.getLength())
+        pResult = this;
+    else
+    {
+        size_t nNumSubNodes = GetNumSubNodes();
+        for (size_t i = 0; i < nNumSubNodes; ++i)
+        {
+            const SmNode *pNode = GetSubNode(i);
+            if (!pNode)
+                continue;
+
+            pResult = pNode->FindNodeWithAccessibleIndex(nAccIdx);
+            if (pResult)
+                return pResult;
+        }
+    }
+
+    return pResult;
+}
+
+
+SmStructureNode::~SmStructureNode()
+{
+    ForEachNonNull(this, std::default_delete<SmNode>());
+}
+
+
+void SmStructureNode::ClearSubNodes()
+{
+    maSubNodes.clear();
+}
+
+void SmStructureNode::SetSubNodes(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond, std::unique_ptr<SmNode> pThird)
+{
+    size_t nSize = pThird ? 3 : (pSecond ? 2 : (pFirst ? 1 : 0));
+    maSubNodes.resize( nSize );
+    if (pFirst)
+        maSubNodes[0] = pFirst.release();
+    if (pSecond)
+        maSubNodes[1] = pSecond.release();
+    if (pThird)
+        maSubNodes[2] = pThird.release();
+
+    ClaimPaternity();
+}
+
+void SmStructureNode::SetSubNodes(SmNodeArray&& rNodeArray)
+{
+    maSubNodes = std::move(rNodeArray);
+    ClaimPaternity();
+}
+
+bool SmStructureNode::IsVisible() const
+{
+    return false;
+}
+
+size_t SmStructureNode::GetNumSubNodes() const
+{
+    return maSubNodes.size();
+}
+
+SmNode* SmStructureNode::GetSubNode(size_t nIndex)
+{
+    return maSubNodes[nIndex];
+}
+
+void SmStructureNode::GetAccessibleText( OUStringBuffer &rText ) const
+{
+    ForEachNonNull(const_cast<SmStructureNode *>(this),
+                   [&rText](SmNode *pNode)
+        {
+            if (pNode->IsVisible())
+                pNode->SetAccessibleIndex(rText.getLength());
+            pNode->GetAccessibleText( rText );
+        });
+}
+
+void SmStructureNode::ClaimPaternity()
+{
+    ForEachNonNull(this, [this](SmNode *pNode){pNode->SetParent(this);});
+}
+
+bool SmVisibleNode::IsVisible() const
+{
+    return true;
+}
+
+size_t SmVisibleNode::GetNumSubNodes() const
+{
+    return 0;
+}
+
+SmNode * SmVisibleNode::GetSubNode(size_t /*nIndex*/)
+{
+    return nullptr;
+}
+
+void SmGraphicNode::GetAccessibleText( OUStringBuffer &rText ) const
+{
+    rText.append(GetToken().aText);
+}
+
+void SmExpressionNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    size_t nSize = GetNumSubNodes();
+    if (nSize > 1)
+        rText.append("{");
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        SmNode *pNode = GetSubNode(i);
+        if (pNode)
+        {
+            pNode->CreateTextFromNode(rText);
+            //Just a bit of foo to make unary +asd -asd +-asd -+asd look nice
+            if (pNode->GetType() == SmNodeType::Math)
+                if ((nSize != 2) || rText.isEmpty() ||
+                    (rText[rText.getLength() - 1] != '+' && rText[rText.getLength() - 1] != '-') )
+                    rText.append(" ");
+        }
+    }
+
+    if (nSize > 1)
+    {
+        rText.stripEnd(' ');
+        rText.append("} ");
+    }
+}
+
+void SmTableNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+    // arranges all subnodes in one column
+{
+    SmNode *pNode;
+    size_t nSize = GetNumSubNodes();
+
+    // make distance depend on font size
+    long  nDist = +(rFormat.GetDistance(DIS_VERTICAL)
+                    * GetFont().GetFontSize().Height()) / 100;
+
+    if (nSize < 1)
+        return;
+
+    // arrange subnodes and get maximum width of them
+    long  nMaxWidth = 0,
+          nTmp;
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (nullptr != (pNode = GetSubNode(i)))
+        {   pNode->Arrange(rDev, rFormat);
+            if ((nTmp = pNode->GetItalicWidth()) > nMaxWidth)
+                nMaxWidth = nTmp;
+        }
+    }
+
+    Point  aPos;
+    SmRect::operator = (SmRect(nMaxWidth, 1));
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (nullptr != (pNode = GetSubNode(i)))
+        {   const SmRect &rNodeRect = pNode->GetRect();
+            const SmNode *pCoNode   = pNode->GetLeftMost();
+            RectHorAlign  eHorAlign = pCoNode->GetRectHorAlign();
+
+            aPos = rNodeRect.AlignTo(*this, RectPos::Bottom,
+                        eHorAlign, RectVerAlign::Baseline);
+            if (i)
+                aPos.AdjustY(nDist );
+            pNode->MoveTo(aPos);
+            ExtendBy(rNodeRect, nSize > 1 ? RectCopyMBL::None : RectCopyMBL::Arg);
+        }
+    }
+    // #i972#
+    if (HasBaseline())
+        mnFormulaBaseline = GetBaseline();
+    else
+    {
+        SmTmpDevice aTmpDev (rDev, true);
+        aTmpDev.SetFont(GetFont());
+
+        SmRect aRect(aTmpDev, &rFormat, "a", GetFont().GetBorderWidth());
+        mnFormulaBaseline = GetAlignM();
+        // move from middle position by constant - distance
+        // between middle and baseline for single letter
+        mnFormulaBaseline += aRect.GetBaseline() - aRect.GetAlignM();
+    }
+}
+
+const SmNode * SmTableNode::GetLeftMost() const
+{
+    return this;
+}
+
+
+long SmTableNode::GetFormulaBaseline() const
+{
+    return mnFormulaBaseline;
+}
+
+
+/**************************************************************************/
+
+
+void SmLineNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    // Here we use the 'FNT_VARIABLE' font since it's ascent and descent in general fit better
+    // to the rest of the formula compared to the 'FNT_MATH' font.
+    GetFont() = rFormat.GetFont(FNT_VARIABLE);
+    Flags() |= FontChangeMask::Face;
+}
+
+
+/**************************************************************************/
+
+
+void SmLineNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+    // arranges all subnodes in one row with some extra space between
+{
+    SmNode *pNode;
+    size_t nSize = GetNumSubNodes();
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        if (nullptr != (pNode = GetSubNode(i)))
+            pNode->Arrange(rDev, rFormat);
+    }
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    if (nSize < 1)
+    {
+        // provide an empty rectangle with alignment parameters for the "current"
+        // font (in order to make "a^1 {}_2^3 a_4" work correct, that is, have the
+        // same sub-/supscript positions.)
+        //! be sure to use a character that has explicitly defined HiAttribut
+        //! line in rect.cxx such as 'a' in order to make 'vec a' look same to
+        //! 'vec {a}'.
+        SmRect::operator = (SmRect(aTmpDev, &rFormat, "a",
+                            GetFont().GetBorderWidth()));
+        // make sure that the rectangle occupies (almost) no space
+        SetWidth(1);
+        SetItalicSpaces(0, 0);
+        return;
+    }
+
+    // make distance depend on font size
+    long nDist = (rFormat.GetDistance(DIS_HORIZONTAL) * GetFont().GetFontSize().Height()) / 100;
+    if (!IsUseExtraSpaces())
+        nDist = 0;
+
+    Point   aPos;
+    // copy the first node into LineNode and extend by the others
+    if (nullptr != (pNode = GetSubNode(0)))
+        SmRect::operator = (pNode->GetRect());
+
+    for (size_t i = 1;  i < nSize; ++i)
+    {
+        if (nullptr != (pNode = GetSubNode(i)))
+        {
+            aPos = pNode->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
+
+            // add horizontal space to the left for each but the first sub node
+            aPos.AdjustX(nDist );
+
+            pNode->MoveTo(aPos);
+            ExtendBy( *pNode, RectCopyMBL::Xor );
+        }
+    }
+}
+
+
+/**************************************************************************/
+
+
+void SmExpressionNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+    // as 'SmLineNode::Arrange' but keeps alignment of leftmost subnode
+{
+    SmLineNode::Arrange(rDev, rFormat);
+
+    //  copy alignment of leftmost subnode if any
+    const SmNode *pNode = GetLeftMost();
+    if (pNode)
+        SetRectHorAlign(pNode->GetRectHorAlign(), false);
+}
+
+
+/**************************************************************************/
+
+
+void SmUnHorNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    bool  bIsPostfix = GetToken().eType == TFACT;
+
+    SmNode *pNode0 = GetSubNode(0),
+           *pNode1 = GetSubNode(1);
+    SmNode *pOper = bIsPostfix ? pNode1 : pNode0,
+           *pBody = bIsPostfix ? pNode0 : pNode1;
+    assert(pOper);
+    assert(pBody);
+
+    pOper->SetSize(Fraction (rFormat.GetRelSize(SIZ_OPERATOR), 100));
+    pOper->Arrange(rDev, rFormat);
+    pBody->Arrange(rDev, rFormat);
+
+    long nDist = (pOper->GetRect().GetWidth() * rFormat.GetDistance(DIS_HORIZONTAL)) / 100;
+
+    SmRect::operator = (*pNode0);
+
+    Point aPos = pNode1->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
+    aPos.AdjustX(nDist );
+    pNode1->MoveTo(aPos);
+    ExtendBy(*pNode1, RectCopyMBL::Xor);
+}
+
+
+/**************************************************************************/
+
+namespace {
+
+void lcl_GetHeightVerOffset(const SmRect &rRect,
+                                    long &rHeight, long &rVerOffset)
+    // calculate height and vertical offset of root sign suitable for 'rRect'
+{
+    rVerOffset = (rRect.GetBottom() - rRect.GetAlignB()) / 2;
+    rHeight    = rRect.GetHeight() - rVerOffset;
+
+    OSL_ENSURE(rHeight    >= 0, "Sm : Ooops...");
+    OSL_ENSURE(rVerOffset >= 0, "Sm : Ooops...");
+}
+
+
+Point lcl_GetExtraPos(const SmRect &rRootSymbol,
+                              const SmRect &rExtra)
+{
+    const Size &rSymSize = rRootSymbol.GetSize();
+
+    Point  aPos = rRootSymbol.GetTopLeft()
+            + Point((rSymSize.Width()  * 70) / 100,
+                    (rSymSize.Height() * 52) / 100);
+
+    // from this calculate topleft edge of 'rExtra'
+    aPos.AdjustX( -(rExtra.GetWidth() + rExtra.GetItalicRightSpace()) );
+    aPos.AdjustY( -(rExtra.GetHeight()) );
+    // if there's enough space move a bit less to the right
+    // examples: "nroot i a", "nroot j a"
+    // (it looks better if we don't use italic-spaces here)
+    long  nX = rRootSymbol.GetLeft() + (rSymSize.Width() * 30) / 100;
+    if (aPos.X() > nX)
+        aPos.setX( nX );
+
+    return aPos;
+}
+
+}
+
+void SmRootNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    //! pExtra needs to have the smaller index than pRootSym in order to
+    //! not to get the root symbol but the pExtra when clicking on it in the
+    //! GraphicWindow. (That is because of the simplicity of the algorithm
+    //! that finds the node corresponding to a mouseclick in the window.)
+    SmNode *pExtra   = GetSubNode(0),
+           *pRootSym = GetSubNode(1),
+           *pBody    = GetSubNode(2);
+    assert(pRootSym);
+    assert(pBody);
+
+    pBody->Arrange(rDev, rFormat);
+
+    long  nHeight,
+          nVerOffset;
+    lcl_GetHeightVerOffset(*pBody, nHeight, nVerOffset);
+    nHeight += rFormat.GetDistance(DIS_ROOT)
+               * GetFont().GetFontSize().Height() / 100;
+
+    // font specialist advised to change the width first
+    pRootSym->AdaptToY(rDev, nHeight);
+    pRootSym->AdaptToX(rDev, pBody->GetItalicWidth());
+
+    pRootSym->Arrange(rDev, rFormat);
+
+    Point  aPos = pRootSym->AlignTo(*pBody, RectPos::Left, RectHorAlign::Center, RectVerAlign::Baseline);
+    //! override calculated vertical position
+    aPos.setY( pRootSym->GetTop() + pBody->GetBottom() - pRootSym->GetBottom() );
+    aPos.AdjustY( -nVerOffset );
+    pRootSym->MoveTo(aPos);
+
+    if (pExtra)
+    {   pExtra->SetSize(Fraction(rFormat.GetRelSize(SIZ_INDEX), 100));
+        pExtra->Arrange(rDev, rFormat);
+
+        aPos = lcl_GetExtraPos(*pRootSym, *pExtra);
+        pExtra->MoveTo(aPos);
+    }
+
+    SmRect::operator = (*pBody);
+    ExtendBy(*pRootSym, RectCopyMBL::This);
+    if (pExtra)
+        ExtendBy(*pExtra, RectCopyMBL::This, true);
+}
+
+
+void SmRootNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    SmNode *pExtra = GetSubNode(0);
+    if (pExtra)
+    {
+        rText.append("nroot ");
+        pExtra->CreateTextFromNode(rText);
+    }
+    else
+        rText.append("sqrt ");
+
+    if (!pExtra && GetSubNode(2)->GetNumSubNodes() > 1)
+        rText.append("{ ");
+
+    GetSubNode(2)->CreateTextFromNode(rText);
+
+    if (!pExtra && GetSubNode(2)->GetNumSubNodes() > 1)
+        rText.append("} ");
+}
+
+/**************************************************************************/
+
+
+void SmBinHorNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pLeft  = LeftOperand(),
+           *pOper  = Symbol(),
+           *pRight = RightOperand();
+    assert(pLeft);
+    assert(pOper);
+    assert(pRight);
+
+    pOper->SetSize(Fraction (rFormat.GetRelSize(SIZ_OPERATOR), 100));
+
+    pLeft ->Arrange(rDev, rFormat);
+    pOper ->Arrange(rDev, rFormat);
+    pRight->Arrange(rDev, rFormat);
+
+    const SmRect &rOpRect = pOper->GetRect();
+
+    long nDist = (rOpRect.GetWidth() *
+                 rFormat.GetDistance(DIS_HORIZONTAL)) / 100;
+
+    SmRect::operator = (*pLeft);
+
+    Point aPos;
+    aPos = pOper->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
+    aPos.AdjustX(nDist );
+    pOper->MoveTo(aPos);
+    ExtendBy(*pOper, RectCopyMBL::Xor);
+
+    aPos = pRight->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
+    aPos.AdjustX(nDist );
+
+    pRight->MoveTo(aPos);
+    ExtendBy(*pRight, RectCopyMBL::Xor);
+}
+
+
+/**************************************************************************/
+
+
+void SmBinVerNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pNum   = GetSubNode(0),
+           *pLine  = GetSubNode(1),
+           *pDenom = GetSubNode(2);
+    assert(pNum);
+    assert(pLine);
+    assert(pDenom);
+
+    bool  bIsTextmode = rFormat.IsTextmode();
+    if (bIsTextmode)
+    {
+        Fraction  aFraction(rFormat.GetRelSize(SIZ_INDEX), 100);
+        pNum  ->SetSize(aFraction);
+        pLine ->SetSize(aFraction);
+        pDenom->SetSize(aFraction);
+    }
+
+    pNum  ->Arrange(rDev, rFormat);
+    pDenom->Arrange(rDev, rFormat);
+
+    long  nFontHeight = GetFont().GetFontSize().Height(),
+          nExtLen     = nFontHeight * rFormat.GetDistance(DIS_FRACTION) / 100,
+          nThick      = nFontHeight * rFormat.GetDistance(DIS_STROKEWIDTH) / 100,
+          nWidth      = std::max(pNum->GetItalicWidth(), pDenom->GetItalicWidth()),
+          nNumDist    = bIsTextmode ? 0 :
+                            nFontHeight * rFormat.GetDistance(DIS_NUMERATOR)   / 100,
+          nDenomDist  = bIsTextmode ? 0 :
+                            nFontHeight * rFormat.GetDistance(DIS_DENOMINATOR) / 100;
+
+    // font specialist advised to change the width first
+    pLine->AdaptToY(rDev, nThick);
+    pLine->AdaptToX(rDev, nWidth + 2 * nExtLen);
+    pLine->Arrange(rDev, rFormat);
+
+    // get horizontal alignment for numerator
+    const SmNode *pLM       = pNum->GetLeftMost();
+    RectHorAlign  eHorAlign = pLM->GetRectHorAlign();
+
+    // move numerator to its position
+    Point  aPos = pNum->AlignTo(*pLine, RectPos::Top, eHorAlign, RectVerAlign::Baseline);
+    aPos.AdjustY( -nNumDist );
+    pNum->MoveTo(aPos);
+
+    // get horizontal alignment for denominator
+    pLM       = pDenom->GetLeftMost();
+    eHorAlign = pLM->GetRectHorAlign();
+
+    // move denominator to its position
+    aPos = pDenom->AlignTo(*pLine, RectPos::Bottom, eHorAlign, RectVerAlign::Baseline);
+    aPos.AdjustY(nDenomDist );
+    pDenom->MoveTo(aPos);
+
+    SmRect::operator = (*pNum);
+    ExtendBy(*pDenom, RectCopyMBL::None).ExtendBy(*pLine, RectCopyMBL::None, pLine->GetCenterY());
+}
+
+void SmBinVerNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    SmNode *pNum   = GetSubNode(0),
+           *pDenom = GetSubNode(2);
+    pNum->CreateTextFromNode(rText);
+    rText.append("over ");
+    pDenom->CreateTextFromNode(rText);
+}
+
+const SmNode * SmBinVerNode::GetLeftMost() const
+{
+    return this;
+}
+
+
+namespace {
+
+/// @return value of the determinant formed by the two points
+double Det(const Point &rHeading1, const Point &rHeading2)
+{
+    return rHeading1.X() * rHeading2.Y() - rHeading1.Y() * rHeading2.X();
+}
+
+
+/// Is true iff the point 'rPoint1' belongs to the straight line through 'rPoint2'
+/// and has the direction vector 'rHeading2'
+bool IsPointInLine(const Point &rPoint1,
+                   const Point &rPoint2, const Point &rHeading2)
+{
+    assert(rHeading2 != Point());
+
+    bool bRes = false;
+    static const double eps = 5.0 * DBL_EPSILON;
+
+    double fLambda;
+    if (labs(rHeading2.X()) > labs(rHeading2.Y()))
+    {
+        fLambda = (rPoint1.X() - rPoint2.X()) / static_cast<double>(rHeading2.X());
+        bRes = fabs(rPoint1.Y() - (rPoint2.Y() + fLambda * rHeading2.Y())) < eps;
+    }
+    else
+    {
+        fLambda = (rPoint1.Y() - rPoint2.Y()) / static_cast<double>(rHeading2.Y());
+        bRes = fabs(rPoint1.X() - (rPoint2.X() + fLambda * rHeading2.X())) < eps;
+    }
+
+    return bRes;
+}
+
+
+sal_uInt16 GetLineIntersectionPoint(Point &rResult,
+                                const Point& rPoint1, const Point &rHeading1,
+                                const Point& rPoint2, const Point &rHeading2)
+{
+    assert(rHeading1 != Point());
+    assert(rHeading2 != Point());
+
+    sal_uInt16 nRes = 1;
+    static const double eps = 5.0 * DBL_EPSILON;
+
+    // are the direction vectors linearly dependent?
+    double  fDet = Det(rHeading1, rHeading2);
+    if (fabs(fDet) < eps)
+    {
+        nRes    = IsPointInLine(rPoint1, rPoint2, rHeading2) ? USHRT_MAX : 0;
+        rResult = nRes ? rPoint1 : Point();
+    }
+    else
+    {
+        // here we do not pay attention to the computational accuracy
+        // (that would be more complicated and is not really worth it in this case)
+        double fLambda = (    (rPoint1.Y() - rPoint2.Y()) * rHeading2.X()
+                            - (rPoint1.X() - rPoint2.X()) * rHeading2.Y())
+                         / fDet;
+        rResult = Point(rPoint1.X() + static_cast<long>(fLambda * rHeading1.X()),
+                        rPoint1.Y() + static_cast<long>(fLambda * rHeading1.Y()));
+    }
+
+    return nRes;
+}
+
+}
+
+
+/// @return position and size of the diagonal line
+/// premise: SmRect of the node defines the limitation(!) consequently it has to be known upfront
+void SmBinDiagonalNode::GetOperPosSize(Point &rPos, Size &rSize,
+                        const Point &rDiagPoint, double fAngleDeg) const
+
+{
+    static const double  fPi   = 3.1415926535897932384626433;
+    double  fAngleRad   = fAngleDeg / 180.0 * fPi;
+    long    nRectLeft   = GetItalicLeft(),
+            nRectRight  = GetItalicRight(),
+            nRectTop    = GetTop(),
+            nRectBottom = GetBottom();
+    Point   aRightHdg     (100, 0),
+            aDownHdg      (0, 100),
+            aDiagHdg      ( static_cast<long>(100.0 * cos(fAngleRad)),
+                            static_cast<long>(-100.0 * sin(fAngleRad)) );
+
+    long  nLeft, nRight, nTop, nBottom;     // margins of the rectangle for the diagonal
+    Point aPoint;
+    if (IsAscending())
+    {
+        // determine top right corner
+        GetLineIntersectionPoint(aPoint,
+            Point(nRectLeft, nRectTop), aRightHdg,
+            rDiagPoint, aDiagHdg);
+        // is there a point of intersection with the top border?
+        if (aPoint.X() <= nRectRight)
+        {
+            nRight = aPoint.X();
+            nTop   = nRectTop;
+        }
+        else
+        {
+            // there has to be a point of intersection with the right border!
+            GetLineIntersectionPoint(aPoint,
+                Point(nRectRight, nRectTop), aDownHdg,
+                rDiagPoint, aDiagHdg);
+
+            nRight = nRectRight;
+            nTop   = aPoint.Y();
+        }
+
+        // determine bottom left corner
+        GetLineIntersectionPoint(aPoint,
+            Point(nRectLeft, nRectBottom), aRightHdg,
+            rDiagPoint, aDiagHdg);
+        // is there a point of intersection with the bottom border?
+        if (aPoint.X() >= nRectLeft)
+        {
+            nLeft   = aPoint.X();
+            nBottom = nRectBottom;
+        }
+        else
+        {
+            // there has to be a point of intersection with the left border!
+            GetLineIntersectionPoint(aPoint,
+                Point(nRectLeft, nRectTop), aDownHdg,
+                rDiagPoint, aDiagHdg);
+
+            nLeft   = nRectLeft;
+            nBottom = aPoint.Y();
+        }
+    }
+    else
+    {
+        // determine top left corner
+        GetLineIntersectionPoint(aPoint,
+            Point(nRectLeft, nRectTop), aRightHdg,
+            rDiagPoint, aDiagHdg);
+        // is there a point of intersection with the top border?
+        if (aPoint.X() >= nRectLeft)
+        {
+            nLeft = aPoint.X();
+            nTop  = nRectTop;
+        }
+        else
+        {
+            // there has to be a point of intersection with the left border!
+            GetLineIntersectionPoint(aPoint,
+                Point(nRectLeft, nRectTop), aDownHdg,
+                rDiagPoint, aDiagHdg);
+
+            nLeft = nRectLeft;
+            nTop  = aPoint.Y();
+        }
+
+        // determine bottom right corner
+        GetLineIntersectionPoint(aPoint,
+            Point(nRectLeft, nRectBottom), aRightHdg,
+            rDiagPoint, aDiagHdg);
+        // is there a point of intersection with the bottom border?
+        if (aPoint.X() <= nRectRight)
+        {
+            nRight  = aPoint.X();
+            nBottom = nRectBottom;
+        }
+        else
+        {
+            // there has to be a point of intersection with the right border!
+            GetLineIntersectionPoint(aPoint,
+                Point(nRectRight, nRectTop), aDownHdg,
+                rDiagPoint, aDiagHdg);
+
+            nRight  = nRectRight;
+            nBottom = aPoint.Y();
+        }
+    }
+
+    rSize = Size(nRight - nLeft + 1, nBottom - nTop + 1);
+    rPos.setX( nLeft );
+    rPos.setY( nTop );
+}
+
+
+void SmBinDiagonalNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    // Both arguments have to get into the SubNodes before the Operator so that clicking
+    // within the GraphicWindow sets the FormulaCursor correctly (cf. SmRootNode)
+    SmNode *pLeft  = GetSubNode(0),
+           *pRight = GetSubNode(1),
+           *pLine  = GetSubNode(2);
+    assert(pLeft);
+    assert(pRight);
+    assert(pLine && pLine->GetType() == SmNodeType::PolyLine);
+
+    SmPolyLineNode *pOper = static_cast<SmPolyLineNode *>(pLine);
+    assert(pOper);
+
+    //! some routines being called extract some info from the OutputDevice's
+    //! font (eg the space to be used for borders OR the font name(!!)).
+    //! Thus the font should reflect the needs and has to be set!
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    pLeft->Arrange(aTmpDev, rFormat);
+    pRight->Arrange(aTmpDev, rFormat);
+
+    // determine implicitly the values (incl. the margin) of the diagonal line
+    pOper->Arrange(aTmpDev, rFormat);
+
+    long nDelta = pOper->GetWidth() * 8 / 10;
+
+    // determine TopLeft position from the right argument
+    Point aPos;
+    aPos.setX( pLeft->GetItalicRight() + nDelta + pRight->GetItalicLeftSpace() );
+    if (IsAscending())
+        aPos.setY( pLeft->GetBottom() + nDelta );
+    else
+        aPos.setY( pLeft->GetTop() - nDelta - pRight->GetHeight() );
+
+    pRight->MoveTo(aPos);
+
+    // determine new baseline
+    long nTmpBaseline = IsAscending() ? (pLeft->GetBottom() + pRight->GetTop()) / 2
+                        : (pLeft->GetTop() + pRight->GetBottom()) / 2;
+    Point  aLogCenter ((pLeft->GetItalicRight() + pRight->GetItalicLeft()) / 2,
+                       nTmpBaseline);
+
+    SmRect::operator = (*pLeft);
+    ExtendBy(*pRight, RectCopyMBL::None);
+
+
+    // determine position and size of diagonal line
+    Size  aTmpSize;
+    GetOperPosSize(aPos, aTmpSize, aLogCenter, IsAscending() ? 60.0 : -60.0);
+
+    // font specialist advised to change the width first
+    pOper->AdaptToY(aTmpDev, aTmpSize.Height());
+    pOper->AdaptToX(aTmpDev, aTmpSize.Width());
+    // and make it active
+    pOper->Arrange(aTmpDev, rFormat);
+
+    pOper->MoveTo(aPos);
+
+    ExtendBy(*pOper, RectCopyMBL::None, nTmpBaseline);
+}
+
+
+/**************************************************************************/
+
+
+void SmSubSupNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    OSL_ENSURE(GetNumSubNodes() == 1 + SUBSUP_NUM_ENTRIES,
+               "Sm: wrong number of subnodes");
+
+    SmNode *pBody = GetBody();
+    assert(pBody);
+
+    long  nOrigHeight = pBody->GetFont().GetFontSize().Height();
+
+    pBody->Arrange(rDev, rFormat);
+
+    const SmRect &rBodyRect = pBody->GetRect();
+    SmRect::operator = (rBodyRect);
+
+    // line that separates sub- and supscript rectangles
+    long  nDelimLine = SmFromTo(GetAlignB(), GetAlignT(), 0.4);
+
+    Point  aPos;
+    long   nDelta, nDist;
+
+    // iterate over all possible sub-/supscripts
+    SmRect  aTmpRect (rBodyRect);
+    for (int i = 0;  i < SUBSUP_NUM_ENTRIES;  i++)
+    {
+        SmSubSup eSubSup = static_cast<SmSubSup>(i);
+        SmNode *pSubSup = GetSubSup(eSubSup);
+
+        if (!pSubSup)
+            continue;
+
+        // switch position of limits if we are in textmode
+        if (rFormat.IsTextmode()  &&  (GetToken().nGroup & TG::Limit))
+            switch (eSubSup)
+            {   case CSUB:  eSubSup = RSUB;     break;
+                case CSUP:  eSubSup = RSUP;     break;
+                default:
+                    break;
+            }
+
+        // prevent sub-/supscripts from diminishing in size
+        // (as would be in "a_{1_{2_{3_4}}}")
+        if (GetFont().GetFontSize().Height() > rFormat.GetBaseSize().Height() / 3)
+        {
+            sal_uInt16 nIndex = (eSubSup == CSUB  ||  eSubSup == CSUP) ?
+                                    SIZ_LIMITS : SIZ_INDEX;
+            Fraction  aFraction ( rFormat.GetRelSize(nIndex), 100 );
+            pSubSup->SetSize(aFraction);
+        }
+
+        pSubSup->Arrange(rDev, rFormat);
+
+        bool  bIsTextmode = rFormat.IsTextmode();
+        nDist = 0;
+
+        //! be sure that CSUB, CSUP are handled before the other cases!
+        switch (eSubSup)
+        {   case RSUB :
+            case LSUB :
+                if (!bIsTextmode)
+                    nDist = nOrigHeight
+                            * rFormat.GetDistance(DIS_SUBSCRIPT) / 100;
+                aPos  = pSubSup->GetRect().AlignTo(aTmpRect,
+                                eSubSup == LSUB ? RectPos::Left : RectPos::Right,
+                                RectHorAlign::Center, RectVerAlign::Bottom);
+                aPos.AdjustY(nDist );
+                nDelta = nDelimLine - aPos.Y();
+                if (nDelta > 0)
+                    aPos.AdjustY(nDelta );
+                break;
+            case RSUP :
+            case LSUP :
+                if (!bIsTextmode)
+                    nDist = nOrigHeight
+                            * rFormat.GetDistance(DIS_SUPERSCRIPT) / 100;
+                aPos  = pSubSup->GetRect().AlignTo(aTmpRect,
+                                eSubSup == LSUP ? RectPos::Left : RectPos::Right,
+                                RectHorAlign::Center, RectVerAlign::Top);
+                aPos.AdjustY( -nDist );
+                nDelta = aPos.Y() + pSubSup->GetHeight() - nDelimLine;
+                if (nDelta > 0)
+                    aPos.AdjustY( -nDelta );
+                break;
+            case CSUB :
+                if (!bIsTextmode)
+                    nDist = nOrigHeight
+                            * rFormat.GetDistance(DIS_LOWERLIMIT) / 100;
+                aPos = pSubSup->GetRect().AlignTo(rBodyRect, RectPos::Bottom,
+                                RectHorAlign::Center, RectVerAlign::Baseline);
+                aPos.AdjustY(nDist );
+                break;
+            case CSUP :
+                if (!bIsTextmode)
+                    nDist = nOrigHeight
+                            * rFormat.GetDistance(DIS_UPPERLIMIT) / 100;
+                aPos = pSubSup->GetRect().AlignTo(rBodyRect, RectPos::Top,
+                                RectHorAlign::Center, RectVerAlign::Baseline);
+                aPos.AdjustY( -nDist );
+                break;
+        }
+
+        pSubSup->MoveTo(aPos);
+        ExtendBy(*pSubSup, RectCopyMBL::This, true);
+
+        // update rectangle to which  RSUB, RSUP, LSUB, LSUP
+        // will be aligned to
+        if (eSubSup == CSUB  ||  eSubSup == CSUP)
+            aTmpRect = *this;
+    }
+}
+
+void SmSubSupNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    SmNode *pNode;
+    GetSubNode(0)->CreateTextFromNode(rText);
+
+    if (nullptr != (pNode = GetSubNode(LSUB+1)))
+    {
+        rText.append("lsub ");
+        pNode->CreateTextFromNode(rText);
+    }
+    if (nullptr != (pNode = GetSubNode(LSUP+1)))
+    {
+        rText.append("lsup ");
+        pNode->CreateTextFromNode(rText);
+    }
+    if (nullptr != (pNode = GetSubNode(CSUB+1)))
+    {
+        rText.append("csub ");
+        pNode->CreateTextFromNode(rText);
+    }
+    if (nullptr != (pNode = GetSubNode(CSUP+1)))
+    {
+        rText.append("csup ");
+        pNode->CreateTextFromNode(rText);
+    }
+    if (nullptr != (pNode = GetSubNode(RSUB+1)))
+    {
+        rText.stripEnd(' ');
+        rText.append("_");
+        pNode->CreateTextFromNode(rText);
+    }
+    if (nullptr != (pNode = GetSubNode(RSUP+1)))
+    {
+        rText.stripEnd(' ');
+        rText.append("^");
+        pNode->CreateTextFromNode(rText);
+    }
+}
+
+
+/**************************************************************************/
+
+void SmBraceNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    if (GetScaleMode() == SmScaleMode::Height)
+        rText.append("left ");
+    {
+        OUStringBuffer aStrBuf;
+        OpeningBrace()->CreateTextFromNode(aStrBuf);
+        OUString aStr = aStrBuf.makeStringAndClear();
+        aStr = comphelper::string::strip(aStr, ' ');
+        aStr = comphelper::string::stripStart(aStr, '\\');
+        if (!aStr.isEmpty())
+        {
+            if (aStr == "divides")
+                rText.append("lline");
+            else if (aStr == "parallel")
+                rText.append("ldline");
+            else if (aStr == "<")
+                rText.append("langle");
+            else
+                rText.append(aStr);
+            rText.append(" ");
+        }
+        else
+            rText.append("none ");
+    }
+    Body()->CreateTextFromNode(rText);
+    if (GetScaleMode() == SmScaleMode::Height)
+        rText.append("right ");
+    {
+        OUStringBuffer aStrBuf;
+        ClosingBrace()->CreateTextFromNode(aStrBuf);
+        OUString aStr = aStrBuf.makeStringAndClear();
+        aStr = comphelper::string::strip(aStr, ' ');
+        aStr = comphelper::string::stripStart(aStr, '\\');
+        if (!aStr.isEmpty())
+        {
+            if (aStr == "divides")
+                rText.append("rline");
+            else if (aStr == "parallel")
+                rText.append("rdline");
+            else if (aStr == ">")
+                rText.append("rangle");
+            else
+                rText.append(aStr);
+            rText.append(" ");
+        }
+        else
+            rText.append("none ");
+    }
+    rText.append(" ");
+}
+
+void SmBraceNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pLeft  = OpeningBrace(),
+           *pBody  = Body(),
+           *pRight = ClosingBrace();
+    assert(pLeft);
+    assert(pBody);
+    assert(pRight);
+
+    pBody->Arrange(rDev, rFormat);
+
+    bool  bIsScaleNormal = rFormat.IsScaleNormalBrackets(),
+          bScale         = pBody->GetHeight() > 0  &&
+                           (GetScaleMode() == SmScaleMode::Height  ||  bIsScaleNormal),
+          bIsABS         = GetToken().eType == TABS;
+
+    long  nFaceHeight = GetFont().GetFontSize().Height();
+
+    // determine oversize in %
+    sal_uInt16  nPerc = 0;
+    if (!bIsABS && bScale)
+    {   // in case of oversize braces...
+        sal_uInt16 nIndex = GetScaleMode() == SmScaleMode::Height ?
+                            DIS_BRACKETSIZE : DIS_NORMALBRACKETSIZE;
+        nPerc = rFormat.GetDistance(nIndex);
+    }
+
+    // determine the height for the braces
+    long  nBraceHeight;
+    if (bScale)
+    {
+        nBraceHeight = pBody->GetType() == SmNodeType::Bracebody ?
+                              static_cast<SmBracebodyNode *>(pBody)->GetBodyHeight()
+                            : pBody->GetHeight();
+        nBraceHeight += 2 * (nBraceHeight * nPerc / 100);
+    }
+    else
+        nBraceHeight = nFaceHeight;
+
+    // distance to the argument
+    nPerc = bIsABS ? 0 : rFormat.GetDistance(DIS_BRACKETSPACE);
+    long  nDist = nFaceHeight * nPerc / 100;
+
+    // if wanted, scale the braces to the wanted size
+    if (bScale)
+    {
+        Size  aTmpSize (pLeft->GetFont().GetFontSize());
+        OSL_ENSURE(pRight->GetFont().GetFontSize() == aTmpSize,
+                    "Sm : different font sizes");
+        aTmpSize.setWidth( std::min(nBraceHeight * 60 / 100,
+                            rFormat.GetBaseSize().Height() * 3 / 2) );
+        // correction factor since change from StarMath to OpenSymbol font
+        // because of the different font width in the FontMetric
+        aTmpSize.setWidth( aTmpSize.Width() * 182 );
+        aTmpSize.setWidth( aTmpSize.Width() / 267 );
+
+        sal_Unicode cChar = pLeft->GetToken().cMathChar;
+        if (cChar != MS_LINE  &&  cChar != MS_DLINE &&
+            cChar != MS_VERTLINE  &&  cChar != MS_DVERTLINE)
+            pLeft ->GetFont().SetSize(aTmpSize);
+
+        cChar = pRight->GetToken().cMathChar;
+        if (cChar != MS_LINE  &&  cChar != MS_DLINE &&
+            cChar != MS_VERTLINE  &&  cChar != MS_DVERTLINE)
+            pRight->GetFont().SetSize(aTmpSize);
+
+        pLeft ->AdaptToY(rDev, nBraceHeight);
+        pRight->AdaptToY(rDev, nBraceHeight);
+    }
+
+    pLeft ->Arrange(rDev, rFormat);
+    pRight->Arrange(rDev, rFormat);
+
+    // required in order to make "\(a\) - (a) - left ( a right )" look alright
+    RectVerAlign  eVerAlign = bScale ? RectVerAlign::CenterY : RectVerAlign::Baseline;
+
+    Point         aPos;
+    aPos = pLeft->AlignTo(*pBody, RectPos::Left, RectHorAlign::Center, eVerAlign);
+    aPos.AdjustX( -nDist );
+    pLeft->MoveTo(aPos);
+
+    aPos = pRight->AlignTo(*pBody, RectPos::Right, RectHorAlign::Center, eVerAlign);
+    aPos.AdjustX(nDist );
+    pRight->MoveTo(aPos);
+
+    SmRect::operator = (*pBody);
+    ExtendBy(*pLeft, RectCopyMBL::This).ExtendBy(*pRight, RectCopyMBL::This);
+}
+
+
+/**************************************************************************/
+
+
+void SmBracebodyNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    size_t nNumSubNodes = GetNumSubNodes();
+    if (nNumSubNodes == 0)
+        return;
+
+    // arrange arguments
+    for (size_t i = 0;  i < nNumSubNodes; i += 2)
+        GetSubNode(i)->Arrange(rDev, rFormat);
+
+    // build reference rectangle with necessary info for vertical alignment
+    SmRect  aRefRect (*GetSubNode(0));
+    for (size_t i = 0;  i < nNumSubNodes; i += 2)
+    {
+        SmRect aTmpRect (*GetSubNode(i));
+        Point  aPos = aTmpRect.AlignTo(aRefRect, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
+        aTmpRect.MoveTo(aPos);
+        aRefRect.ExtendBy(aTmpRect, RectCopyMBL::Xor);
+    }
+
+    mnBodyHeight = aRefRect.GetHeight();
+
+    // scale separators to required height and arrange them
+    bool bScale  = GetScaleMode() == SmScaleMode::Height  ||  rFormat.IsScaleNormalBrackets();
+    long nHeight = bScale ? aRefRect.GetHeight() : GetFont().GetFontSize().Height();
+    sal_uInt16 nIndex  = GetScaleMode() == SmScaleMode::Height ?
+                        DIS_BRACKETSIZE : DIS_NORMALBRACKETSIZE;
+    sal_uInt16 nPerc   = rFormat.GetDistance(nIndex);
+    if (bScale)
+        nHeight += 2 * (nHeight * nPerc / 100);
+    for (size_t i = 1; i < nNumSubNodes; i += 2)
+    {
+        SmNode *pNode = GetSubNode(i);
+        pNode->AdaptToY(rDev, nHeight);
+        pNode->Arrange(rDev, rFormat);
+    }
+
+    // horizontal distance between argument and brackets or separators
+    long  nDist = GetFont().GetFontSize().Height()
+                  * rFormat.GetDistance(DIS_BRACKETSPACE) / 100;
+
+    SmNode *pLeft = GetSubNode(0);
+    SmRect::operator = (*pLeft);
+    for (size_t i = 1; i < nNumSubNodes; ++i)
+    {
+        bool          bIsSeparator = i % 2 != 0;
+        RectVerAlign  eVerAlign    = bIsSeparator ? RectVerAlign::CenterY : RectVerAlign::Baseline;
+
+        SmNode *pRight = GetSubNode(i);
+        Point  aPosX = pRight->AlignTo(*pLeft,   RectPos::Right, RectHorAlign::Center, eVerAlign),
+               aPosY = pRight->AlignTo(aRefRect, RectPos::Right, RectHorAlign::Center, eVerAlign);
+        aPosX.AdjustX(nDist );
+
+        pRight->MoveTo(Point(aPosX.X(), aPosY.Y()));
+        ExtendBy(*pRight, bIsSeparator ? RectCopyMBL::This : RectCopyMBL::Xor);
+
+        pLeft = pRight;
+    }
+}
+
+
+/**************************************************************************/
+
+
+void SmVerticalBraceNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pBody   = Body(),
+           *pBrace  = Brace(),
+           *pScript = Script();
+    assert(pBody);
+    assert(pBrace);
+    assert(pScript);
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    pBody->Arrange(aTmpDev, rFormat);
+
+    // size is the same as for limits for this part
+    pScript->SetSize( Fraction( rFormat.GetRelSize(SIZ_LIMITS), 100 ) );
+    // braces are a bit taller than usually
+    pBrace ->SetSize( Fraction(3, 2) );
+
+    long  nItalicWidth = pBody->GetItalicWidth();
+    if (nItalicWidth > 0)
+        pBrace->AdaptToX(aTmpDev, nItalicWidth);
+
+    pBrace ->Arrange(aTmpDev, rFormat);
+    pScript->Arrange(aTmpDev, rFormat);
+
+    // determine the relative position and the distances between each other
+    RectPos  eRectPos;
+    long nFontHeight = pBody->GetFont().GetFontSize().Height();
+    long nDistBody   = nFontHeight * rFormat.GetDistance(DIS_ORNAMENTSIZE),
+         nDistScript = nFontHeight;
+    if (GetToken().eType == TOVERBRACE)
+    {
+        eRectPos = RectPos::Top;
+        nDistBody    = - nDistBody;
+        nDistScript *= - rFormat.GetDistance(DIS_UPPERLIMIT);
+    }
+    else // TUNDERBRACE
+    {
+        eRectPos = RectPos::Bottom;
+        nDistScript *= + rFormat.GetDistance(DIS_LOWERLIMIT);
+    }
+    nDistBody   /= 100;
+    nDistScript /= 100;
+
+    Point  aPos = pBrace->AlignTo(*pBody, eRectPos, RectHorAlign::Center, RectVerAlign::Baseline);
+    aPos.AdjustY(nDistBody );
+    pBrace->MoveTo(aPos);
+
+    aPos = pScript->AlignTo(*pBrace, eRectPos, RectHorAlign::Center, RectVerAlign::Baseline);
+    aPos.AdjustY(nDistScript );
+    pScript->MoveTo(aPos);
+
+    SmRect::operator = (*pBody);
+    ExtendBy(*pBrace, RectCopyMBL::This).ExtendBy(*pScript, RectCopyMBL::This);
+}
+
+
+/**************************************************************************/
+
+
+SmNode * SmOperNode::GetSymbol()
+{
+    SmNode *pNode = GetSubNode(0);
+    assert(pNode);
+
+    if (pNode->GetType() == SmNodeType::SubSup)
+        pNode = static_cast<SmSubSupNode *>(pNode)->GetBody();
+
+    OSL_ENSURE(pNode, "Sm: NULL pointer!");
+    return pNode;
+}
+
+
+long SmOperNode::CalcSymbolHeight(const SmNode &rSymbol,
+                                  const SmFormat &rFormat) const
+    // returns the font height to be used for operator-symbol
+{
+    long  nHeight = GetFont().GetFontSize().Height();
+
+    SmTokenType  eTmpType = GetToken().eType;
+    if (eTmpType == TLIM  ||  eTmpType == TLIMINF  ||  eTmpType == TLIMSUP)
+        return nHeight;
+
+    if (!rFormat.IsTextmode())
+    {
+        // set minimum size ()
+        nHeight += (nHeight * 20) / 100;
+
+        nHeight += nHeight
+                   * rFormat.GetDistance(DIS_OPERATORSIZE) / 100;
+        nHeight = nHeight * 686 / 845;
+    }
+
+    // correct user-defined symbols to match height of sum from used font
+    if (rSymbol.GetToken().eType == TSPECIAL)
+        nHeight = nHeight * 845 / 686;
+
+    return nHeight;
+}
+
+
+void SmOperNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pOper = GetSubNode(0);
+    SmNode *pBody = GetSubNode(1);
+
+    assert(pOper);
+    assert(pBody);
+
+    SmNode *pSymbol = GetSymbol();
+    pSymbol->SetSize(Fraction(CalcSymbolHeight(*pSymbol, rFormat),
+                              pSymbol->GetFont().GetFontSize().Height()));
+
+    pBody->Arrange(rDev, rFormat);
+    bool bDynamicallySized = false;
+    if (pSymbol->GetToken().eType == TINTD)
+    {
+        long nBodyHeight = pBody->GetHeight();
+        long nFontHeight = pSymbol->GetFont().GetFontSize().Height();
+        if (nFontHeight < nBodyHeight)
+        {
+            pSymbol->SetSize(Fraction(nBodyHeight, nFontHeight));
+            bDynamicallySized = true;
+        }
+    }
+    pOper->Arrange(rDev, rFormat);
+
+    long  nOrigHeight = GetFont().GetFontSize().Height(),
+          nDist = nOrigHeight
+                  * rFormat.GetDistance(DIS_OPERATORSPACE) / 100;
+
+    Point aPos = pOper->AlignTo(*pBody, RectPos::Left, RectHorAlign::Center, bDynamicallySized ? RectVerAlign::CenterY : RectVerAlign::Mid);
+    aPos.AdjustX( -nDist );
+    pOper->MoveTo(aPos);
+
+    SmRect::operator = (*pBody);
+    ExtendBy(*pOper, RectCopyMBL::This);
+}
+
+
+/**************************************************************************/
+
+
+void SmAlignNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+    // set alignment within the entire subtree (including current node)
+{
+    assert(GetNumSubNodes() == 1);
+
+    SmNode  *pNode = GetSubNode(0);
+    assert(pNode);
+
+    RectHorAlign  eHorAlign = RectHorAlign::Center;
+    switch (GetToken().eType)
+    {
+        case TALIGNL:   eHorAlign = RectHorAlign::Left;   break;
+        case TALIGNC:   eHorAlign = RectHorAlign::Center; break;
+        case TALIGNR:   eHorAlign = RectHorAlign::Right;  break;
+        default:
+            break;
+    }
+    SetRectHorAlign(eHorAlign);
+
+    pNode->Arrange(rDev, rFormat);
+
+    SmRect::operator = (pNode->GetRect());
+}
+
+
+/**************************************************************************/
+
+
+void SmAttributNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pAttr = Attribute(),
+           *pBody = Body();
+    assert(pBody);
+    assert(pAttr);
+
+    pBody->Arrange(rDev, rFormat);
+
+    if (GetScaleMode() == SmScaleMode::Width)
+        pAttr->AdaptToX(rDev, pBody->GetItalicWidth());
+    pAttr->Arrange(rDev, rFormat);
+
+    // get relative position of attribute
+    RectVerAlign  eVerAlign;
+    long          nDist = 0;
+    switch (GetToken().eType)
+    {   case TUNDERLINE :
+            eVerAlign = RectVerAlign::AttributeLo;
+            break;
+        case TOVERSTRIKE :
+            eVerAlign = RectVerAlign::AttributeMid;
+            break;
+        default :
+            eVerAlign = RectVerAlign::AttributeHi;
+            if (pBody->GetType() == SmNodeType::Attribut)
+                nDist = GetFont().GetFontSize().Height()
+                        * rFormat.GetDistance(DIS_ORNAMENTSPACE) / 100;
+    }
+    Point  aPos = pAttr->AlignTo(*pBody, RectPos::Attribute, RectHorAlign::Center, eVerAlign);
+    aPos.AdjustY( -nDist );
+    pAttr->MoveTo(aPos);
+
+    SmRect::operator = (*pBody);
+    ExtendBy(*pAttr, RectCopyMBL::This, true);
+}
+
+void SmFontNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    rText.append("{");
+    sal_Int32 nc,r,g,b;
+
+    switch (GetToken().eType)
+    {
+        case TBOLD:
+            rText.append("bold ");
+            break;
+        case TNBOLD:
+            rText.append("nbold ");
+            break;
+        case TITALIC:
+            rText.append("italic ");
+            break;
+        case TNITALIC:
+            rText.append("nitalic ");
+            break;
+        case TPHANTOM:
+            rText.append("phantom ");
+            break;
+        case TSIZE:
+            {
+                rText.append("size ");
+                switch (meSizeType)
+                {
+                    case FontSizeType::PLUS:
+                        rText.append("+");
+                        break;
+                    case FontSizeType::MINUS:
+                        rText.append("-");
+                        break;
+                    case FontSizeType::MULTIPLY:
+                        rText.append("*");
+                        break;
+                    case FontSizeType::DIVIDE:
+                        rText.append("/");
+                        break;
+                    case FontSizeType::ABSOLUT:
+                    default:
+                        break;
+                }
+                rText.append(::rtl::math::doubleToUString(
+                            static_cast<double>(maFontSize),
+                            rtl_math_StringFormat_Automatic,
+                            rtl_math_DecimalPlaces_Max, '.', true));
+                rText.append(" ");
+            }
+            break;
+        case TBLACK:
+            rText.append("color black ");
+            break;
+        case TWHITE:
+            rText.append("color white ");
+            break;
+        case TRED:
+            rText.append("color red ");
+            break;
+        case TGREEN:
+            rText.append("color green ");
+            break;
+        case TBLUE:
+            rText.append("color blue ");
+            break;
+        case TCYAN:
+            rText.append("color cyan ");
+            break;
+        case TMAGENTA:
+            rText.append("color magenta ");
+            break;
+        case TYELLOW:
+            rText.append("color yellow ");
+            break;
+        case TTEAL:
+            rText.append("color teal ");
+            break;
+        case TSILVER:
+            rText.append("color silver ");
+            break;
+        case TGRAY:
+            rText.append("color gray ");
+            break;
+        case TMAROON:
+            rText.append("color maroon ");
+            break;
+        case TPURPLE:
+            rText.append("color purple ");
+            break;
+        case TLIME:
+            rText.append("color lime ");
+            break;
+        case TOLIVE:
+            rText.append("color olive ");
+            break;
+        case TNAVY:
+            rText.append("color navy ");
+            break;
+        case TAQUA:
+            rText.append("color aqua ");
+            break;
+        case TFUCHSIA:
+            rText.append("color fuchsia ");
+            break;
+        case TRGB:
+            rText.append("color rgb ");
+            nc = GetToken().aText.toInt32();
+            b = nc % 256;
+            nc /= 256;
+            g = nc % 256;
+            nc /= 256;
+            r = nc % 256;
+            rText.append(r);
+            rText.append(" ");
+            rText.append(g);
+            rText.append(" ");
+            rText.append(b);
+            rText.append(" ");
+            break;
+        case TSANS:
+            rText.append("font sans ");
+            break;
+        case TSERIF:
+            rText.append("font serif ");
+            break;
+        case TFIXED:
+            rText.append("font fixed ");
+            break;
+        default:
+            break;
+    }
+    if (GetNumSubNodes() > 1)
+        GetSubNode(1)->CreateTextFromNode(rText);
+
+    rText.stripEnd(' ');
+    rText.append("} ");
+}
+
+void SmFontNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    //! prepare subnodes first
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    int  nFnt = -1;
+    switch (GetToken().eType)
+    {
+        case TFIXED:    nFnt = FNT_FIXED;   break;
+        case TSANS:     nFnt = FNT_SANS;    break;
+        case TSERIF:    nFnt = FNT_SERIF;   break;
+        default:
+            break;
+    }
+    if (nFnt != -1)
+    {   GetFont() = rFormat.GetFont( sal::static_int_cast< sal_uInt16 >(nFnt) );
+        SetFont(GetFont());
+    }
+
+    //! prevent overwrites of this font by 'Arrange' or 'SetFont' calls of
+    //! other font nodes (those with lower depth in the tree)
+    Flags() |= FontChangeMask::Face;
+}
+
+void SmFontNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pNode = GetSubNode(1);
+    assert(pNode);
+    sal_Int32 nc;
+    Color col_perso_rgb_color (0);
+
+    switch (GetToken().eType)
+    {   case TSIZE :
+            pNode->SetFontSize(maFontSize, meSizeType);
+            break;
+        case TSANS :
+        case TSERIF :
+        case TFIXED :
+            pNode->SetFont(GetFont());
+            break;
+        case TUNKNOWN : break;  // no assertion on "font <?> <?>"
+
+        case TPHANTOM : SetPhantom(true);               break;
+        case TBOLD :    SetAttribut(FontAttribute::Bold);     break;
+        case TITALIC :  SetAttribut(FontAttribute::Italic);   break;
+        case TNBOLD :   ClearAttribut(FontAttribute::Bold);   break;
+        case TNITALIC : ClearAttribut(FontAttribute::Italic); break;
+
+        case TBLACK :   SetColor(COL_BLACK);     break;
+        case TWHITE :   SetColor(COL_WHITE);     break;
+        case TRED :     SetColor(COL_LIGHTRED);      break;
+        case TGREEN :   SetColor(COL_GREEN);     break;
+        case TBLUE :    SetColor(COL_LIGHTBLUE);     break;
+        case TCYAN :    SetColor(COL_LIGHTCYAN);     break; // as in Calc
+        case TMAGENTA : SetColor(COL_LIGHTMAGENTA);  break; // as in Calc
+        case TYELLOW :  SetColor(COL_YELLOW);    break;
+        case TTEAL :    SetColor(COL_CYAN);  break;
+        case TSILVER :  SetColor(COL_LIGHTGRAY);  break;
+        case TGRAY :    SetColor(COL_GRAY);  break;
+        case TMAROON :  SetColor(COL_RED);  break;
+        case TPURPLE :  SetColor(COL_MAGENTA);  break;
+        case TLIME :    SetColor(COL_LIGHTGREEN);  break;
+        case TOLIVE :   SetColor(COL_BROWN);  break;
+        case TNAVY :    SetColor(COL_BLUE);  break;
+        case TAQUA :    SetColor(COL_LIGHTCYAN);  break;
+        case TFUCHSIA : SetColor(COL_LIGHTMAGENTA);  break;
+        case TRGB :
+            nc = GetToken().aText.toInt32();
+            col_perso_rgb_color.SetBlue(nc % 256);
+            nc /= 256;
+            col_perso_rgb_color.SetGreen(nc % 256);
+            nc /= 256;
+            col_perso_rgb_color.SetRed(nc % 256);
+            SetColor(col_perso_rgb_color);
+            break;
+
+        default:
+            SAL_WARN("starmath", "unknown case");
+    }
+
+    pNode->Arrange(rDev, rFormat);
+
+    SmRect::operator = (pNode->GetRect());
+}
+
+
+void SmFontNode::SetSizeParameter(const Fraction& rValue, FontSizeType eType)
+{
+    meSizeType = eType;
+    maFontSize = rValue;
+}
+
+
+/**************************************************************************/
+
+
+SmPolyLineNode::SmPolyLineNode(const SmToken &rNodeToken)
+    : SmGraphicNode(SmNodeType::PolyLine, rNodeToken)
+    , maPoly(2)
+    , maToSize()
+    , mnWidth(0)
+{
+}
+
+
+void SmPolyLineNode::AdaptToX(OutputDevice &/*rDev*/, sal_uLong nNewWidth)
+{
+    maToSize.setWidth( nNewWidth );
+}
+
+
+void SmPolyLineNode::AdaptToY(OutputDevice &/*rDev*/, sal_uLong nNewHeight)
+{
+    GetFont().FreezeBorderWidth();
+    maToSize.setHeight( nNewHeight );
+}
+
+
+void SmPolyLineNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    //! some routines being called extract some info from the OutputDevice's
+    //! font (eg the space to be used for borders OR the font name(!!)).
+    //! Thus the font should reflect the needs and has to be set!
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    long  nBorderwidth = GetFont().GetBorderWidth();
+
+    // create polygon using both endpoints
+    assert(maPoly.GetSize() == 2);
+    Point  aPointA, aPointB;
+    if (GetToken().eType == TWIDESLASH)
+    {
+        aPointA.setX( nBorderwidth );
+        aPointA.setY( maToSize.Height() - nBorderwidth );
+        aPointB.setX( maToSize.Width() - nBorderwidth );
+        aPointB.setY( nBorderwidth );
+    }
+    else
+    {
+        OSL_ENSURE(GetToken().eType == TWIDEBACKSLASH, "Sm : unexpected token");
+        aPointA.setX( nBorderwidth );
+        aPointA.setY( nBorderwidth );
+        aPointB.setX( maToSize.Width() - nBorderwidth );
+        aPointB.setY( maToSize.Height() - nBorderwidth );
+    }
+    maPoly.SetPoint(aPointA, 0);
+    maPoly.SetPoint(aPointB, 1);
+
+    long  nThick       = GetFont().GetFontSize().Height()
+                            * rFormat.GetDistance(DIS_STROKEWIDTH) / 100;
+    mnWidth = nThick + 2 * nBorderwidth;
+
+    SmRect::operator = (SmRect(maToSize.Width(), maToSize.Height()));
+}
+
+
+/**************************************************************************/
+
+void SmRootSymbolNode::AdaptToX(OutputDevice &/*rDev*/, sal_uLong nWidth)
+{
+    mnBodyWidth = nWidth;
+}
+
+
+void SmRootSymbolNode::AdaptToY(OutputDevice &rDev, sal_uLong nHeight)
+{
+    // some additional length so that the horizontal
+    // bar will be positioned above the argument
+    SmMathSymbolNode::AdaptToY(rDev, nHeight + nHeight / 10);
+}
+
+
+/**************************************************************************/
+
+
+void SmRectangleNode::AdaptToX(OutputDevice &/*rDev*/, sal_uLong nWidth)
+{
+    maToSize.setWidth( nWidth );
+}
+
+
+void SmRectangleNode::AdaptToY(OutputDevice &/*rDev*/, sal_uLong nHeight)
+{
+    GetFont().FreezeBorderWidth();
+    maToSize.setHeight( nHeight );
+}
+
+
+void SmRectangleNode::Arrange(OutputDevice &rDev, const SmFormat &/*rFormat*/)
+{
+    long  nFontHeight = GetFont().GetFontSize().Height();
+    long  nWidth  = maToSize.Width(),
+          nHeight = maToSize.Height();
+    if (nHeight == 0)
+        nHeight = nFontHeight / 30;
+    if (nWidth == 0)
+        nWidth  = nFontHeight / 3;
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    // add some borderspace
+    sal_uLong  nTmpBorderWidth = GetFont().GetBorderWidth();
+    nHeight += 2 * nTmpBorderWidth;
+
+    //! use this method in order to have 'SmRect::HasAlignInfo() == true'
+    //! and thus having the attribute-fences updated in 'SmRect::ExtendBy'
+    SmRect::operator = (SmRect(nWidth, nHeight));
+}
+
+
+/**************************************************************************/
+
+
+SmTextNode::SmTextNode( SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 nFontDescP )
+    : SmVisibleNode(eNodeType, rNodeToken)
+    , mnFontDesc(nFontDescP)
+    , mnSelectionStart(0)
+    , mnSelectionEnd(0)
+{
+}
+
+SmTextNode::SmTextNode( const SmToken &rNodeToken, sal_uInt16 nFontDescP )
+    : SmVisibleNode(SmNodeType::Text, rNodeToken)
+    , mnFontDesc(nFontDescP)
+    , mnSelectionStart(0)
+    , mnSelectionEnd(0)
+{
+}
+
+void SmTextNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    // default setting for horizontal alignment of nodes with TTEXT
+    // content is as alignl (cannot be done in Arrange since it would
+    // override the settings made by an SmAlignNode before)
+    if (TTEXT == GetToken().eType)
+        SetRectHorAlign( RectHorAlign::Left );
+
+    maText = GetToken().aText;
+    GetFont() = rFormat.GetFont(GetFontDesc());
+
+    if (IsItalic( GetFont() ))
+        Attributes() |= FontAttribute::Italic;
+    if (IsBold( GetFont() ))
+        Attributes() |= FontAttribute::Bold;
+
+    // special handling for ':' where it is a token on its own and is likely
+    // to be used for mathematical notations. (E.g. a:b = 2:3)
+    // In that case it should not be displayed in italic.
+    if (GetToken().aText.getLength() == 1 && GetToken().aText[0] == ':')
+        Attributes() &= ~FontAttribute::Italic;
+};
+
+
+void SmTextNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    PrepareAttributes();
+
+    sal_uInt16  nSizeDesc = GetFontDesc() == FNT_FUNCTION ?
+                            SIZ_FUNCTION : SIZ_TEXT;
+    GetFont() *= Fraction (rFormat.GetRelSize(nSizeDesc), 100);
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, maText, GetFont().GetBorderWidth()));
+}
+
+void SmTextNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    bool bQuoted=false;
+    if (GetToken().eType == TTEXT)
+    {
+        rText.append("\"");
+        bQuoted=true;
+    }
+    else
+    {
+        SmParser aParseTest;
+        auto pTable = aParseTest.Parse(GetToken().aText);
+        assert(pTable->GetType() == SmNodeType::Table);
+        bQuoted=true;
+        if (pTable->GetNumSubNodes() == 1)
+        {
+            SmNode *pResult = pTable->GetSubNode(0);
+            if ( (pResult->GetType() == SmNodeType::Line) &&
+                (pResult->GetNumSubNodes() == 1) )
+            {
+                pResult = pResult->GetSubNode(0);
+                if (pResult->GetType() == SmNodeType::Text)
+                    bQuoted=false;
+            }
+        }
+
+        if ((GetToken().eType == TIDENT) && (GetFontDesc() == FNT_FUNCTION))
+        {
+            //Search for existing functions and remove extraneous keyword
+            rText.append("func ");
+        }
+        else if (bQuoted)
+            rText.append("italic ");
+
+        if (bQuoted)
+            rText.append("\"");
+
+    }
+
+    rText.append(GetToken().aText);
+
+    if (bQuoted)
+        rText.append("\"");
+    rText.append(" ");
+}
+
+void SmTextNode::GetAccessibleText( OUStringBuffer &rText ) const
+{
+    rText.append(maText);
+}
+
+void SmTextNode::AdjustFontDesc()
+{
+    if (GetToken().eType == TTEXT)
+        mnFontDesc = FNT_TEXT;
+    else if(GetToken().eType == TFUNC)
+        mnFontDesc = FNT_FUNCTION;
+    else {
+        SmTokenType nTok;
+        const SmTokenTableEntry *pEntry = SmParser::GetTokenTableEntry( maText );
+        if (pEntry && pEntry->nGroup == TG::Function) {
+            nTok = pEntry->eType;
+            mnFontDesc = FNT_FUNCTION;
+        } else {
+            sal_Unicode firstChar = maText[0];
+            if( ('0' <= firstChar && firstChar <= '9') || firstChar == '.' || firstChar == ',') {
+                mnFontDesc = FNT_NUMBER;
+                nTok = TNUMBER;
+            } else if (maText.getLength() > 1) {
+                mnFontDesc = FNT_VARIABLE;
+                nTok = TIDENT;
+            } else {
+                mnFontDesc = FNT_VARIABLE;
+                nTok = TCHARACTER;
+            }
+        }
+        SmToken tok = GetToken();
+        tok.eType = nTok;
+        SetToken(tok);
+    }
+}
+
+sal_Unicode SmTextNode::ConvertSymbolToUnicode(sal_Unicode nIn)
+{
+    //Find the best match in accepted unicode for our private area symbols
+    static const sal_Unicode aStarMathPrivateToUnicode[] =
+    {
+        0x2030, 0xF613, 0xF612, 0x002B, 0x003C, 0x003E, 0xE425, 0xE421, 0xE088, 0x2208,
+        0x0192, 0x2026, 0x2192, 0x221A, 0x221A, 0x221A, 0xE090, 0x005E, 0x02C7, 0x02D8,
+        0x00B4, 0x0060, 0x02DC, 0x00AF, 0x0362, 0xE099, 0xE09A, 0x20DB, 0xE09C, 0xE09D,
+        0x0028, 0x0029, 0x2220, 0x22AF, 0xE0A2, 0xE0A3, 0xE0A4, 0xE0A5, 0xE0A6, 0xE0A7,
+        0x002F, 0x005C, 0x274F, 0xE0AB, 0x0393, 0x0394, 0x0398, 0x039b, 0x039e, 0x03A0,
+        0x03a3, 0x03a5, 0x03a6, 0x03a8, 0x03A9, 0x03B1, 0x03B2, 0x03b3, 0x03b4, 0x03b5,
+        0x03b6, 0x03b7, 0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf,
+        0x03c0, 0x03c1, 0x03c3, 0x03c4, 0x03c5, 0x03c6, 0x03c7, 0x03c8, 0x03c9, 0x03b5,
+        0x03d1, 0x03d6, 0xE0D2, 0x03db, 0x2118, 0x2202, 0x2129, 0xE0D7, 0xE0D8, 0x22A4,
+        0xE0DA, 0x2190, 0x2191, 0x2193
+    };
+    if ((nIn >= 0xE080) && (nIn <= 0xE0DD))
+        nIn = aStarMathPrivateToUnicode[nIn-0xE080];
+
+    //For whatever unicode glyph that equation editor doesn't ship with that
+    //we have a possible match we can munge it to.
+    switch (nIn)
+    {
+        case 0x2223:
+            nIn = '|';
+            break;
+        default:
+            break;
+    }
+
+    return nIn;
+}
+
+/**************************************************************************/
+
+void SmMatrixNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    rText.append("matrix {");
+    for (size_t i = 0;  i < mnNumRows; ++i)
+    {
+        for (size_t j = 0;  j < mnNumCols; ++j)
+        {
+            SmNode *pNode = GetSubNode(i * mnNumCols + j);
+            if (pNode)
+                pNode->CreateTextFromNode(rText);
+            if (j != mnNumCols - 1U)
+                rText.append("# ");
+        }
+        if (i != mnNumRows - 1U)
+            rText.append("## ");
+    }
+    rText.stripEnd(' ');
+    rText.append("} ");
+}
+
+void SmMatrixNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmNode *pNode;
+
+    // initialize array that is to hold the maximum widths of all
+    // elements (subnodes) in that column.
+    std::vector<long> aColWidth(mnNumCols);
+
+    // arrange subnodes and calculate the above arrays contents
+    size_t nNodes = GetNumSubNodes();
+    for (size_t i = 0; i < nNodes; ++i)
+    {
+        size_t nIdx = nNodes - 1 - i;
+        if (nullptr != (pNode = GetSubNode(nIdx)))
+        {
+            pNode->Arrange(rDev, rFormat);
+            int  nCol = nIdx % mnNumCols;
+            aColWidth[nCol] = std::max(aColWidth[nCol], pNode->GetItalicWidth());
+        }
+    }
+
+    // norm distance from which the following two are calculated
+    const long  nNormDist = 3 * GetFont().GetFontSize().Height();
+
+    // define horizontal and vertical minimal distances that separate
+    // the elements
+    long  nHorDist = nNormDist * rFormat.GetDistance(DIS_MATRIXCOL) / 100,
+          nVerDist = nNormDist * rFormat.GetDistance(DIS_MATRIXROW) / 100;
+
+    // build array that holds the leftmost position for each column
+    std::vector<long> aColLeft(mnNumCols);
+    long  nX = 0;
+    for (size_t j = 0; j < mnNumCols; ++j)
+    {
+        aColLeft[j] = nX;
+        nX += aColWidth[j] + nHorDist;
+    }
+
+    SmRect::operator = (SmRect());
+    for (size_t i = 0;  i < mnNumRows; ++i)
+    {
+        Point aPos;
+        SmRect aLineRect;
+        for (size_t j = 0;  j < mnNumCols; ++j)
+        {
+            SmNode *pTmpNode = GetSubNode(i * mnNumCols + j);
+            assert(pTmpNode);
+
+            const SmRect &rNodeRect = pTmpNode->GetRect();
+
+            // align all baselines in that row if possible
+            aPos = rNodeRect.AlignTo(aLineRect, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
+
+            // get horizontal alignment
+            const SmNode *pCoNode   = pTmpNode->GetLeftMost();
+            RectHorAlign  eHorAlign = pCoNode->GetRectHorAlign();
+
+            // calculate horizontal position of element depending on column
+            // and horizontal alignment
+            switch (eHorAlign)
+            {   case RectHorAlign::Left:
+                    aPos.setX( aColLeft[j] );
+                    break;
+                case RectHorAlign::Center:
+                    aPos.setX( rNodeRect.GetLeft() + aColLeft[j]
+                               + aColWidth[j] / 2
+                               - rNodeRect.GetItalicCenterX() );
+                    break;
+                case RectHorAlign::Right:
+                    aPos.setX( aColLeft[j]
+                               + aColWidth[j] - rNodeRect.GetItalicWidth() );
+                    break;
+                default:
+                    assert(false);
+            }
+
+            pTmpNode->MoveTo(aPos);
+            aLineRect.ExtendBy(rNodeRect, RectCopyMBL::Xor);
+        }
+
+        aPos = aLineRect.AlignTo(*this, RectPos::Bottom, RectHorAlign::Center, RectVerAlign::Baseline);
+        if (i > 0)
+            aPos.AdjustY(nVerDist );
+
+        // move 'aLineRect' and rectangles in that line to final position
+        Point aDelta(0, // since horizontal alignment is already done
+                     aPos.Y() - aLineRect.GetTop());
+        aLineRect.Move(aDelta);
+        for (size_t j = 0;  j < mnNumCols; ++j)
+        {
+            if (nullptr != (pNode = GetSubNode(i * mnNumCols + j)))
+                pNode->Move(aDelta);
+        }
+
+        ExtendBy(aLineRect, RectCopyMBL::None);
+    }
+}
+
+
+void SmMatrixNode::SetRowCol(sal_uInt16 nMatrixRows, sal_uInt16 nMatrixCols)
+{
+    mnNumRows = nMatrixRows;
+    mnNumCols = nMatrixCols;
+}
+
+
+const SmNode * SmMatrixNode::GetLeftMost() const
+{
+    return this;
+}
+
+
+/**************************************************************************/
+
+
+SmMathSymbolNode::SmMathSymbolNode(const SmToken &rNodeToken)
+:   SmSpecialNode(SmNodeType::Math, rNodeToken, FNT_MATH)
+{
+    sal_Unicode cChar = GetToken().cMathChar;
+    if (u'\0' != cChar)
+        SetText(OUString(cChar));
+}
+
+void SmMathSymbolNode::AdaptToX(OutputDevice &rDev, sal_uLong nWidth)
+{
+    // Since there is no function to do this, we try to approximate it:
+    Size  aFntSize (GetFont().GetFontSize());
+
+    //! however the result is a bit better with 'nWidth' as initial font width
+    aFntSize.setWidth( nWidth );
+    GetFont().SetSize(aFntSize);
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    // get denominator of error factor for width
+    long nTmpBorderWidth = GetFont().GetBorderWidth();
+    long nDenom = SmRect(aTmpDev, nullptr, GetText(), nTmpBorderWidth).GetItalicWidth();
+
+    // scale fontwidth with this error factor
+    aFntSize.setWidth( aFntSize.Width() * nWidth );
+    aFntSize.setWidth( aFntSize.Width() / ( nDenom ? nDenom : 1) );
+
+    GetFont().SetSize(aFntSize);
+}
+
+void SmMathSymbolNode::AdaptToY(OutputDevice &rDev, sal_uLong nHeight)
+{
+    GetFont().FreezeBorderWidth();
+    Size  aFntSize (GetFont().GetFontSize());
+
+    // Since we only want to scale the height, we might have
+    // to determine the font width in order to keep it
+    if (aFntSize.Width() == 0)
+    {
+        rDev.Push(PushFlags::FONT | PushFlags::MAPMODE);
+        rDev.SetFont(GetFont());
+        aFntSize.setWidth( rDev.GetFontMetric().GetFontSize().Width() );
+        rDev.Pop();
+    }
+    OSL_ENSURE(aFntSize.Width() != 0, "Sm: ");
+
+    //! however the result is a bit better with 'nHeight' as initial
+    //! font height
+    aFntSize.setHeight( nHeight );
+    GetFont().SetSize(aFntSize);
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    // get denominator of error factor for height
+    long nTmpBorderWidth = GetFont().GetBorderWidth();
+    long nDenom = 0;
+    if (!GetText().isEmpty())
+        nDenom = SmRect(aTmpDev, nullptr, GetText(), nTmpBorderWidth).GetHeight();
+
+    // scale fontwidth with this error factor
+    aFntSize.setHeight( aFntSize.Height() * nHeight );
+    aFntSize.setHeight( aFntSize.Height() / ( nDenom ? nDenom : 1) );
+
+    GetFont().SetSize(aFntSize);
+}
+
+
+void SmMathSymbolNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    GetFont() = rFormat.GetFont(GetFontDesc());
+    // use same font size as is used for variables
+    GetFont().SetSize( rFormat.GetFont( FNT_VARIABLE ).GetFontSize() );
+
+    OSL_ENSURE(GetFont().GetCharSet() == RTL_TEXTENCODING_SYMBOL  ||
+               GetFont().GetCharSet() == RTL_TEXTENCODING_UNICODE,
+        "wrong charset for character from StarMath/OpenSymbol font");
+
+    Flags() |= FontChangeMask::Face | FontChangeMask::Italic;
+};
+
+
+void SmMathSymbolNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    const OUString &rText = GetText();
+
+    if (rText.isEmpty() || rText[0] == '\0')
+    {   SmRect::operator = (SmRect());
+        return;
+    }
+
+    PrepareAttributes();
+
+    GetFont() *= Fraction (rFormat.GetRelSize(SIZ_TEXT), 100);
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, rText, GetFont().GetBorderWidth()));
+}
+
+void SmMathSymbolNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    sal_Unicode cChar = GetToken().cMathChar;
+    if (cChar == MS_INT && GetScaleMode() == SmScaleMode::Height)
+        rText.append("intd ");
+    else
+        MathType::LookupChar(cChar, rText, 3);
+}
+
+void SmRectangleNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    switch (GetToken().eType)
+    {
+    case TUNDERLINE:
+        rText.append("underline ");
+        break;
+    case TOVERLINE:
+        rText.append("overline ");
+        break;
+    case TOVERSTRIKE:
+        rText.append("overstrike ");
+        break;
+    default:
+        break;
+    }
+}
+
+void SmAttributNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    SmNode *pNode;
+    assert(GetNumSubNodes() == 2);
+    rText.append("{");
+    sal_Unicode nLast=0;
+    if (nullptr != (pNode = Attribute()))
+    {
+        OUStringBuffer aStr;
+        pNode->CreateTextFromNode(aStr);
+        if (aStr.getLength() > 1)
+            rText.append(aStr);
+        else
+        {
+            nLast = aStr[0];
+            switch (nLast)
+            {
+            case MS_BAR: // MACRON
+                rText.append("overline ");
+                break;
+            case MS_DOT: // DOT ABOVE
+                rText.append("dot ");
+                break;
+            case 0x2dc: // SMALL TILDE
+                rText.append("widetilde ");
+                break;
+            case MS_DDOT: // DIAERESIS
+                rText.append("ddot ");
+                break;
+            case 0xE082:
+                break;
+            case 0xE09B:
+            case MS_DDDOT: // COMBINING THREE DOTS ABOVE
+                rText.append("dddot ");
+                break;
+            case MS_ACUTE: // ACUTE ACCENT
+            case MS_COMBACUTE: // COMBINING ACUTE ACCENT
+                rText.append("acute ");
+                break;
+            case MS_GRAVE: // GRAVE ACCENT
+            case MS_COMBGRAVE: // COMBINING GRAVE ACCENT
+                rText.append("grave ");
+                break;
+            case MS_CHECK: // CARON
+            case MS_COMBCHECK: // COMBINING CARON
+                rText.append("check ");
+                break;
+            case MS_BREVE: // BREVE
+            case MS_COMBBREVE: // COMBINING BREVE
+                rText.append("breve ");
+                break;
+            case MS_CIRCLE: // RING ABOVE
+            case MS_COMBCIRCLE: // COMBINING RING ABOVE
+                rText.append("circle ");
+                break;
+            case MS_RIGHTARROW: // RIGHTWARDS ARROW
+            case MS_VEC: // COMBINING RIGHT ARROW ABOVE
+                rText.append("vec ");
+                break;
+            case MS_HARPOON: // COMBINING RIGHT HARPOON ABOVE
+                rText.append("harpoon ");
+                break;
+            case MS_TILDE: // TILDE
+            case MS_COMBTILDE: // COMBINING TILDE
+                rText.append("tilde ");
+                break;
+            case MS_HAT: // CIRCUMFLEX ACCENT
+            case MS_COMBHAT: // COMBINING CIRCUMFLEX ACCENT
+                rText.append("hat ");
+                break;
+            case MS_COMBBAR: // COMBINING MACRON
+                rText.append("bar ");
+                break;
+            default:
+                rText.append(OUStringChar(nLast));
+                break;
+            }
+        }
+    }
+
+    if (nullptr != (pNode = Body()))
+        pNode->CreateTextFromNode(rText);
+
+    rText.stripEnd(' ');
+
+    if (nLast == 0xE082)
+        rText.append(" overbrace {}");
+
+    rText.append("} ");
+}
+
+/**************************************************************************/
+
+static bool lcl_IsFromGreekSymbolSet( const OUString &rTokenText )
+{
+    bool bRes = false;
+
+    // valid symbol name needs to have a '%' at pos 0 and at least an additional char
+    if (rTokenText.getLength() > 2 && rTokenText[0] == u'%')
+    {
+        OUString aName( rTokenText.copy(1) );
+        SmSym *pSymbol = SM_MOD()->GetSymbolManager().GetSymbolByName( aName );
+        if (pSymbol && SmLocalizedSymbolData::GetExportSymbolSetName(pSymbol->GetSymbolSetName()) == "Greek")
+            bRes = true;
+    }
+
+    return bRes;
+}
+
+
+SmSpecialNode::SmSpecialNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 _nFontDesc)
+    : SmTextNode(eNodeType, rNodeToken, _nFontDesc)
+    , mbIsFromGreekSymbolSet(lcl_IsFromGreekSymbolSet( rNodeToken.aText ))
+{
+}
+
+
+SmSpecialNode::SmSpecialNode(const SmToken &rNodeToken)
+    : SmTextNode(SmNodeType::Special, rNodeToken, FNT_MATH)  // default Font isn't always correct!
+    , mbIsFromGreekSymbolSet(lcl_IsFromGreekSymbolSet( rNodeToken.aText ))
+{
+}
+
+
+void SmSpecialNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    const SmSym   *pSym;
+    SmModule  *pp = SM_MOD();
+
+    OUString aName(GetToken().aText.copy(1));
+    if (nullptr != (pSym = pp->GetSymbolManager().GetSymbolByName( aName )))
+    {
+        sal_UCS4 cChar = pSym->GetCharacter();
+        OUString aTmp( &cChar, 1 );
+        SetText( aTmp );
+        GetFont() = pSym->GetFace();
+    }
+    else
+    {
+        SetText( GetToken().aText );
+        GetFont() = rFormat.GetFont(FNT_VARIABLE);
+    }
+    // use same font size as is used for variables
+    GetFont().SetSize( rFormat.GetFont( FNT_VARIABLE ).GetFontSize() );
+
+    // Actually only WEIGHT_NORMAL and WEIGHT_BOLD should occur... However, the sms-file also
+    // contains e.g. 'WEIGHT_ULTRALIGHT'. Consequently, compare here with '>' instead of '!='.
+    // (In the long term the necessity for 'PrepareAttribut' and thus also for this here should be dropped)
+
+    //! see also SmFontStyles::GetStyleName
+    if (IsItalic( GetFont() ))
+        SetAttribut(FontAttribute::Italic);
+    if (IsBold( GetFont() ))
+        SetAttribut(FontAttribute::Bold);
+
+    Flags() |= FontChangeMask::Face;
+
+    if (!mbIsFromGreekSymbolSet)
+        return;
+
+    OSL_ENSURE( GetText().getLength() == 1, "a symbol should only consist of 1 char!" );
+    bool bItalic = false;
+    sal_Int16 nStyle = rFormat.GetGreekCharStyle();
+    OSL_ENSURE( nStyle >= 0 && nStyle <= 2, "unexpected value for GreekCharStyle" );
+    if (nStyle == 1)
+        bItalic = true;
+    else if (nStyle == 2)
+    {
+        const OUString& rTmp(GetText());
+        if (!rTmp.isEmpty())
+        {
+            static const sal_Unicode cUppercaseAlpha = 0x0391;
+            static const sal_Unicode cUppercaseOmega = 0x03A9;
+            sal_Unicode cChar = rTmp[0];
+            // uppercase letters should be straight and lowercase letters italic
+            bItalic = cUppercaseAlpha > cChar || cChar > cUppercaseOmega;
+        }
+    }
+
+    if (bItalic)
+        Attributes() |= FontAttribute::Italic;
+    else
+        Attributes() &= ~FontAttribute::Italic;
+};
+
+
+void SmSpecialNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    PrepareAttributes();
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(), GetFont().GetBorderWidth()));
+}
+
+/**************************************************************************/
+
+
+void SmGlyphSpecialNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    PrepareAttributes();
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(),
+                               GetFont().GetBorderWidth()).AsGlyphRect());
+}
+
+
+/**************************************************************************/
+
+
+void SmPlaceNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    GetFont().SetColor(COL_GRAY);
+    Flags() |= FontChangeMask::Color | FontChangeMask::Face | FontChangeMask::Italic;
+};
+
+
+void SmPlaceNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    PrepareAttributes();
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(), GetFont().GetBorderWidth()));
+}
+
+
+/**************************************************************************/
+
+
+void SmErrorNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    GetFont().SetColor(COL_RED);
+    Flags() |= FontChangeMask::Phantom | FontChangeMask::Bold | FontChangeMask::Italic
+               | FontChangeMask::Color | FontChangeMask::Face | FontChangeMask::Size;
+}
+
+
+void SmErrorNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    PrepareAttributes();
+
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    const OUString &rText = GetText();
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, rText, GetFont().GetBorderWidth()));
+}
+
+/**************************************************************************/
+
+void SmBlankNode::IncreaseBy(const SmToken &rToken, sal_uInt32 nMultiplyBy)
+{
+    switch(rToken.eType)
+    {
+        case TBLANK:  mnNum += (4 * nMultiplyBy); break;
+        case TSBLANK: mnNum += (1 * nMultiplyBy); break;
+        default:
+            break;
+    }
+}
+
+void SmBlankNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
+{
+    SmNode::Prepare(rFormat, rDocShell, nDepth);
+
+    // Here it need/should not be the StarMath font, so that for the character
+    // used in Arrange a normal (non-clipped) rectangle is generated
+    GetFont() = rFormat.GetFont(FNT_VARIABLE);
+
+    Flags() |= FontChangeMask::Face | FontChangeMask::Bold | FontChangeMask::Italic;
+}
+
+
+void SmBlankNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
+{
+    SmTmpDevice aTmpDev (rDev, true);
+    aTmpDev.SetFont(GetFont());
+
+    // make distance depend on the font height
+    // (so that it increases when scaling (e.g. size *2 {a ~ b})
+    long  nDist  = GetFont().GetFontSize().Height() / 10,
+          nSpace = mnNum * nDist;
+
+    // get a SmRect with Baseline and all the bells and whistles
+    SmRect::operator = (SmRect(aTmpDev, &rFormat, OUString(' '),
+                               GetFont().GetBorderWidth()));
+
+    // and resize it to the requested size
+    SetItalicSpaces(0, 0);
+    SetWidth(nSpace);
+}
+
+void SmBlankNode::CreateTextFromNode(OUStringBuffer &rText)
+{
+    if (mnNum <= 0)
+        return;
+    sal_uInt16 nWide = mnNum / 4;
+    sal_uInt16 nNarrow = mnNum % 4;
+    for (sal_uInt16 i = 0; i < nWide; i++)
+        rText.append("~");
+    for (sal_uInt16 i = 0; i < nNarrow; i++)
+        rText.append("`");
+    rText.append(" ");
+}
+
+
+/**************************************************************************/
+//Implementation of all accept methods for SmVisitor
+
+void SmTableNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmBraceNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmBracebodyNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmOperNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmAlignNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmAttributNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmFontNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmUnHorNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmBinHorNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmBinVerNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmBinDiagonalNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmSubSupNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmMatrixNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmPlaceNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmTextNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmSpecialNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmGlyphSpecialNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmMathSymbolNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmBlankNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmErrorNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmLineNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmExpressionNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmPolyLineNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmRootNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmRootSymbolNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmRectangleNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+void SmVerticalBraceNode::Accept(SmVisitor* pVisitor) {
+    pVisitor->Visit(this);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/ooxmlexport.cxx b/starmath/source/ooxmlexport.cxx
new file mode 100644
index 000000000..fff9cd7c5
--- /dev/null
+++ b/starmath/source/ooxmlexport.cxx
@@ -0,0 +1,600 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "ooxmlexport.hxx"
+#include <node.hxx>
+
+#include <oox/token/tokens.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <oox/mathml/export.hxx>
+
+using namespace oox;
+using namespace oox::core;
+
+SmOoxmlExport::SmOoxmlExport(const SmNode *const pIn, OoxmlVersion const v,
+        drawingml::DocumentType const documentType)
+: SmWordExportBase( pIn )
+, version( v )
+, m_DocumentType(documentType)
+{
+}
+
+void SmOoxmlExport::ConvertFromStarMath( const ::sax_fastparser::FSHelperPtr& serializer, const sal_Int8 nAlign )
+{
+    if( m_pTree == nullptr )
+        return;
+    m_pSerializer = serializer;
+
+    //Formula alignment situations:
+    //
+    //  1)Inline(as before):
+    //
+    //      <m:oMath>
+    //          <m:r>  ... </m:r>
+    //      </m:oMath>
+    //
+    //  2)Aligned:
+    //
+    //      <m:oMathPara>
+    //          <m:oMathParaPr>
+    //              <m:jc m:val="left|right|center">
+    //          </m:oMathParaPr>
+    //          <m:oMath>
+    //              <m:r>  ... </m:r>
+    //          </m:oMath>
+    //      </m:oMathPara>
+
+    if (nAlign != FormulaExportBase::eFormulaAlign::INLINE)
+    {
+        m_pSerializer->startElementNS(XML_m, XML_oMathPara,
+            FSNS(XML_xmlns, XML_m), "http://schemas.openxmlformats.org/officeDocument/2006/math");
+        m_pSerializer->startElementNS(XML_m, XML_oMathParaPr);
+        if (nAlign == FormulaExportBase::eFormulaAlign::CENTER)
+            m_pSerializer->singleElementNS(XML_m, XML_jc, FSNS(XML_m, XML_val), "center");
+        if (nAlign == FormulaExportBase::eFormulaAlign::GROUPEDCENTER)
+            m_pSerializer->singleElementNS(XML_m, XML_jc, FSNS(XML_m, XML_val), "center");
+        if (nAlign == FormulaExportBase::eFormulaAlign::LEFT)
+            m_pSerializer->singleElementNS(XML_m, XML_jc, FSNS(XML_m, XML_val), "left");
+        if (nAlign == FormulaExportBase::eFormulaAlign::RIGHT)
+            m_pSerializer->singleElementNS(XML_m, XML_jc, FSNS(XML_m, XML_val), "right");
+        m_pSerializer->endElementNS(XML_m, XML_oMathParaPr);
+        m_pSerializer->startElementNS(XML_m, XML_oMath);
+        HandleNode(m_pTree, 0);
+        m_pSerializer->endElementNS(XML_m, XML_oMath);
+        m_pSerializer->endElementNS(XML_m, XML_oMathPara);
+    }
+    else //else, inline as was before
+    {
+        m_pSerializer->startElementNS(XML_m, XML_oMath,
+            FSNS(XML_xmlns, XML_m), "http://schemas.openxmlformats.org/officeDocument/2006/math");
+        HandleNode( m_pTree, 0 );
+        m_pSerializer->endElementNS( XML_m, XML_oMath );
+    }
+}
+
+// NOTE: This is still work in progress and unfinished, but it already covers a good
+// part of the ooxml math stuff.
+
+void SmOoxmlExport::HandleVerticalStack( const SmNode* pNode, int nLevel )
+{
+    m_pSerializer->startElementNS(XML_m, XML_eqArr);
+    int size = pNode->GetNumSubNodes();
+    for( int i = 0;
+         i < size;
+         ++i )
+    {
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        HandleNode( pNode->GetSubNode( i ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+    }
+    m_pSerializer->endElementNS( XML_m, XML_eqArr );
+}
+
+void SmOoxmlExport::HandleText( const SmNode* pNode, int /*nLevel*/)
+{
+    m_pSerializer->startElementNS(XML_m, XML_r);
+
+    if( pNode->GetToken().eType == TTEXT ) // literal text (in quotes)
+    {
+        m_pSerializer->startElementNS(XML_m, XML_rPr);
+        m_pSerializer->singleElementNS(XML_m, XML_lit);
+        m_pSerializer->singleElementNS(XML_m, XML_nor);
+        m_pSerializer->endElementNS( XML_m, XML_rPr );
+    }
+    if (drawingml::DOCUMENT_DOCX == m_DocumentType && ECMA_DIALECT == version)
+    { // HACK: MSOffice2007 does not import characters properly unless this font is explicitly given
+        m_pSerializer->startElementNS(XML_w, XML_rPr);
+        m_pSerializer->singleElementNS( XML_w, XML_rFonts, FSNS( XML_w, XML_ascii ), "Cambria Math",
+            FSNS( XML_w, XML_hAnsi ), "Cambria Math" );
+        m_pSerializer->endElementNS( XML_w, XML_rPr );
+    }
+    m_pSerializer->startElementNS(XML_m, XML_t, FSNS(XML_xml, XML_space), "preserve");
+    const SmTextNode* pTemp = static_cast<const SmTextNode* >(pNode);
+    SAL_INFO( "starmath.ooxml", "Text:" << pTemp->GetText());
+    OUStringBuffer buf(pTemp->GetText());
+    for(sal_Int32 i=0;i<pTemp->GetText().getLength();i++)
+    {
+#if 0
+        if ((nPendingAttributes) &&
+            (i == ((pTemp->GetText().getLength()+1)/2)-1))
+        {
+            *pS << sal_uInt8(0x22);     //char, with attributes right
+                                //after the character
+        }
+        else
+            *pS << sal_uInt8(CHAR);
+
+        sal_uInt8 nFace = 0x1;
+        if (pNode->GetFont().GetItalic() == ITALIC_NORMAL)
+            nFace = 0x3;
+        else if (pNode->GetFont().GetWeight() == WEIGHT_BOLD)
+            nFace = 0x7;
+        *pS << sal_uInt8(nFace+128); //typeface
+#endif
+        buf[i] = SmTextNode::ConvertSymbolToUnicode(buf[i]);
+#if 0
+        //Mathtype can only have these sort of character
+        //attributes on a single character, starmath can put them
+        //anywhere, when the entity involved is a text run this is
+        //a large effort to place the character attribute on the
+        //central mathtype character so that it does pretty much
+        //what the user probably has in mind. The attributes
+        //filled in here are dummy ones which are replaced in the
+        //ATTRIBUT handler if a suitable location for the
+        //attributes was found here. Unfortunately it is
+        //possible for starmath to place character attributes on
+        //entities which cannot occur in mathtype e.g. a Summation
+        //symbol so these attributes may be lost
+        if ((nPendingAttributes) &&
+            (i == ((pTemp->GetText().getLength()+1)/2)-1))
+        {
+            *pS << sal_uInt8(EMBEL);
+            while (nPendingAttributes)
+            {
+                *pS << sal_uInt8(2);
+                //wedge the attributes in here and clear
+                //the pending stack
+                nPendingAttributes--;
+            }
+            nInsertion=pS->Tell();
+            *pS << sal_uInt8(END); //end embel
+            *pS << sal_uInt8(END); //end embel
+        }
+#endif
+    }
+    m_pSerializer->writeEscaped(buf.makeStringAndClear());
+    m_pSerializer->endElementNS( XML_m, XML_t );
+    m_pSerializer->endElementNS( XML_m, XML_r );
+}
+
+void SmOoxmlExport::HandleFractions( const SmNode* pNode, int nLevel, const char* type )
+{
+    m_pSerializer->startElementNS(XML_m, XML_f);
+    if( type != nullptr )
+    {
+        m_pSerializer->startElementNS(XML_m, XML_fPr);
+        m_pSerializer->singleElementNS(XML_m, XML_type, FSNS(XML_m, XML_val), type);
+        m_pSerializer->endElementNS( XML_m, XML_fPr );
+    }
+    assert( pNode->GetNumSubNodes() == 3 );
+    m_pSerializer->startElementNS(XML_m, XML_num);
+    HandleNode( pNode->GetSubNode( 0 ), nLevel + 1 );
+    m_pSerializer->endElementNS( XML_m, XML_num );
+    m_pSerializer->startElementNS(XML_m, XML_den);
+    HandleNode( pNode->GetSubNode( 2 ), nLevel + 1 );
+    m_pSerializer->endElementNS( XML_m, XML_den );
+    m_pSerializer->endElementNS( XML_m, XML_f );
+}
+
+void SmOoxmlExport::HandleAttribute( const SmAttributNode* pNode, int nLevel )
+{
+    switch( pNode->Attribute()->GetToken().eType )
+    {
+        case TCHECK:
+        case TACUTE:
+        case TGRAVE:
+        case TBREVE:
+        case TCIRCLE:
+        case TVEC:
+        case TTILDE:
+        case THAT:
+        case TDOT:
+        case TDDOT:
+        case TDDDOT:
+        case TWIDETILDE:
+        case TWIDEHAT:
+        case TWIDEHARPOON:
+        case TWIDEVEC:
+        case TBAR:
+        {
+            m_pSerializer->startElementNS(XML_m, XML_acc);
+            m_pSerializer->startElementNS(XML_m, XML_accPr);
+            OString value = OUStringToOString(
+                OUString( pNode->Attribute()->GetToken().cMathChar ), RTL_TEXTENCODING_UTF8 );
+            m_pSerializer->singleElementNS(XML_m, XML_chr, FSNS(XML_m, XML_val), value);
+            m_pSerializer->endElementNS( XML_m, XML_accPr );
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->Body(), nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->endElementNS( XML_m, XML_acc );
+            break;
+        }
+        case TOVERLINE:
+        case TUNDERLINE:
+            m_pSerializer->startElementNS(XML_m, XML_bar);
+            m_pSerializer->startElementNS(XML_m, XML_barPr);
+            m_pSerializer->singleElementNS( XML_m, XML_pos, FSNS( XML_m, XML_val ),
+                ( pNode->Attribute()->GetToken().eType == TUNDERLINE ) ? "bot" : "top" );
+            m_pSerializer->endElementNS( XML_m, XML_barPr );
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->Body(), nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->endElementNS( XML_m, XML_bar );
+            break;
+        case TOVERSTRIKE:
+            m_pSerializer->startElementNS(XML_m, XML_borderBox);
+            m_pSerializer->startElementNS(XML_m, XML_borderBoxPr);
+            m_pSerializer->singleElementNS(XML_m, XML_hideTop, FSNS(XML_m, XML_val), "1");
+            m_pSerializer->singleElementNS(XML_m, XML_hideBot, FSNS(XML_m, XML_val), "1");
+            m_pSerializer->singleElementNS(XML_m, XML_hideLeft, FSNS(XML_m, XML_val), "1");
+            m_pSerializer->singleElementNS(XML_m, XML_hideRight, FSNS(XML_m, XML_val), "1");
+            m_pSerializer->singleElementNS(XML_m, XML_strikeH, FSNS(XML_m, XML_val), "1");
+            m_pSerializer->endElementNS( XML_m, XML_borderBoxPr );
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->Body(), nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->endElementNS( XML_m, XML_borderBox );
+            break;
+        default:
+            HandleAllSubNodes( pNode, nLevel );
+            break;
+    }
+}
+
+void SmOoxmlExport::HandleRoot( const SmRootNode* pNode, int nLevel )
+{
+    m_pSerializer->startElementNS(XML_m, XML_rad);
+    if( const SmNode* argument = pNode->Argument())
+    {
+        m_pSerializer->startElementNS(XML_m, XML_deg);
+        HandleNode( argument, nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_deg );
+    }
+    else
+    {
+        m_pSerializer->startElementNS(XML_m, XML_radPr);
+        m_pSerializer->singleElementNS(XML_m, XML_degHide, FSNS(XML_m, XML_val), "1");
+        m_pSerializer->endElementNS( XML_m, XML_radPr );
+        m_pSerializer->singleElementNS(XML_m, XML_deg); // empty but present
+    }
+    m_pSerializer->startElementNS(XML_m, XML_e);
+    HandleNode( pNode->Body(), nLevel + 1 );
+    m_pSerializer->endElementNS( XML_m, XML_e );
+    m_pSerializer->endElementNS( XML_m, XML_rad );
+}
+
+static OString mathSymbolToString( const SmNode* node )
+{
+    assert( node->GetType() == SmNodeType::Math || node->GetType() == SmNodeType::MathIdent );
+    const SmTextNode* txtnode = static_cast< const SmTextNode* >( node );
+    assert( txtnode->GetText().getLength() == 1 );
+    sal_Unicode chr = SmTextNode::ConvertSymbolToUnicode( txtnode->GetText()[0] );
+    return OUStringToOString( OUString( chr ), RTL_TEXTENCODING_UTF8 );
+}
+
+void SmOoxmlExport::HandleOperator( const SmOperNode* pNode, int nLevel )
+{
+    SAL_INFO( "starmath.ooxml", "Operator: " << int( pNode->GetToken().eType ));
+    switch( pNode->GetToken().eType )
+    {
+        case TINT:
+        case TINTD:
+        case TIINT:
+        case TIIINT:
+        case TLINT:
+        case TLLINT:
+        case TLLLINT:
+        case TPROD:
+        case TCOPROD:
+        case TSUM:
+        {
+            const SmSubSupNode* subsup = pNode->GetSubNode( 0 )->GetType() == SmNodeType::SubSup
+                ? static_cast< const SmSubSupNode* >( pNode->GetSubNode( 0 )) : nullptr;
+            const SmNode* operation = subsup != nullptr ? subsup->GetBody() : pNode->GetSubNode( 0 );
+            m_pSerializer->startElementNS(XML_m, XML_nary);
+            m_pSerializer->startElementNS(XML_m, XML_naryPr);
+            m_pSerializer->singleElementNS( XML_m, XML_chr,
+                FSNS( XML_m, XML_val ), mathSymbolToString(operation) );
+            if( subsup == nullptr || subsup->GetSubSup( CSUB ) == nullptr )
+                m_pSerializer->singleElementNS(XML_m, XML_subHide, FSNS(XML_m, XML_val), "1");
+            if( subsup == nullptr || subsup->GetSubSup( CSUP ) == nullptr )
+                m_pSerializer->singleElementNS(XML_m, XML_supHide, FSNS(XML_m, XML_val), "1");
+            m_pSerializer->endElementNS( XML_m, XML_naryPr );
+            if( subsup == nullptr || subsup->GetSubSup( CSUB ) == nullptr )
+                m_pSerializer->singleElementNS(XML_m, XML_sub);
+            else
+            {
+                m_pSerializer->startElementNS(XML_m, XML_sub);
+                HandleNode( subsup->GetSubSup( CSUB ), nLevel + 1 );
+                m_pSerializer->endElementNS( XML_m, XML_sub );
+            }
+            if( subsup == nullptr || subsup->GetSubSup( CSUP ) == nullptr )
+                m_pSerializer->singleElementNS(XML_m, XML_sup);
+            else
+            {
+                m_pSerializer->startElementNS(XML_m, XML_sup);
+                HandleNode( subsup->GetSubSup( CSUP ), nLevel + 1 );
+                m_pSerializer->endElementNS( XML_m, XML_sup );
+            }
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->GetSubNode( 1 ), nLevel + 1 ); // body
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->endElementNS( XML_m, XML_nary );
+            break;
+        }
+        case TLIM:
+            m_pSerializer->startElementNS(XML_m, XML_func);
+            m_pSerializer->startElementNS(XML_m, XML_fName);
+            m_pSerializer->startElementNS(XML_m, XML_limLow);
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->GetSymbol(), nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->startElementNS(XML_m, XML_lim);
+            if( const SmSubSupNode* subsup = pNode->GetSubNode( 0 )->GetType() == SmNodeType::SubSup
+                ? static_cast< const SmSubSupNode* >( pNode->GetSubNode( 0 )) : nullptr )
+            {
+                if( subsup->GetSubSup( CSUB ) != nullptr )
+                    HandleNode( subsup->GetSubSup( CSUB ), nLevel + 1 );
+            }
+            m_pSerializer->endElementNS( XML_m, XML_lim );
+            m_pSerializer->endElementNS( XML_m, XML_limLow );
+            m_pSerializer->endElementNS( XML_m, XML_fName );
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->GetSubNode( 1 ), nLevel + 1 ); // body
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->endElementNS( XML_m, XML_func );
+            break;
+        default:
+            SAL_WARN("starmath.ooxml", "Unhandled operation");
+            HandleAllSubNodes( pNode, nLevel );
+            break;
+    }
+}
+
+void SmOoxmlExport::HandleSubSupScriptInternal( const SmSubSupNode* pNode, int nLevel, int flags )
+{
+// docx supports only a certain combination of sub/super scripts, but LO can have any,
+// so try to merge it using several tags if necessary
+    if( flags == 0 ) // none
+        return;
+    if(( flags & ( 1 << RSUP | 1 << RSUB )) == ( 1 << RSUP | 1 << RSUB ))
+    { // m:sSubSup
+        m_pSerializer->startElementNS(XML_m, XML_sSubSup);
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        flags &= ~( 1 << RSUP | 1 << RSUB );
+        if( flags == 0 )
+            HandleNode( pNode->GetBody(), nLevel + 1 );
+        else
+            HandleSubSupScriptInternal( pNode, nLevel, flags );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+        m_pSerializer->startElementNS(XML_m, XML_sub);
+        HandleNode( pNode->GetSubSup( RSUB ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_sub );
+        m_pSerializer->startElementNS(XML_m, XML_sup);
+        HandleNode( pNode->GetSubSup( RSUP ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_sup );
+        m_pSerializer->endElementNS( XML_m, XML_sSubSup );
+    }
+    else if(( flags & ( 1 << RSUB )) == 1 << RSUB )
+    { // m:sSub
+        m_pSerializer->startElementNS(XML_m, XML_sSub);
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        flags &= ~( 1 << RSUB );
+        if( flags == 0 )
+            HandleNode( pNode->GetBody(), nLevel + 1 );
+        else
+            HandleSubSupScriptInternal( pNode, nLevel, flags );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+        m_pSerializer->startElementNS(XML_m, XML_sub);
+        HandleNode( pNode->GetSubSup( RSUB ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_sub );
+        m_pSerializer->endElementNS( XML_m, XML_sSub );
+    }
+    else if(( flags & ( 1 << RSUP )) == 1 << RSUP )
+    { // m:sSup
+        m_pSerializer->startElementNS(XML_m, XML_sSup);
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        flags &= ~( 1 << RSUP );
+        if( flags == 0 )
+            HandleNode( pNode->GetBody(), nLevel + 1 );
+        else
+            HandleSubSupScriptInternal( pNode, nLevel, flags );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+        m_pSerializer->startElementNS(XML_m, XML_sup);
+        HandleNode( pNode->GetSubSup( RSUP ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_sup );
+        m_pSerializer->endElementNS( XML_m, XML_sSup );
+    }
+    else if(( flags & ( 1 << LSUP | 1 << LSUB )) == ( 1 << LSUP | 1 << LSUB ))
+    { // m:sPre
+        m_pSerializer->startElementNS(XML_m, XML_sPre);
+        m_pSerializer->startElementNS(XML_m, XML_sub);
+        HandleNode( pNode->GetSubSup( LSUB ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_sub );
+        m_pSerializer->startElementNS(XML_m, XML_sup);
+        HandleNode( pNode->GetSubSup( LSUP ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_sup );
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        flags &= ~( 1 << LSUP | 1 << LSUB );
+        if( flags == 0 )
+            HandleNode( pNode->GetBody(), nLevel + 1 );
+        else
+            HandleSubSupScriptInternal( pNode, nLevel, flags );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+        m_pSerializer->endElementNS( XML_m, XML_sPre );
+    }
+    else if(( flags & ( 1 << CSUB )) == ( 1 << CSUB ))
+    { // m:limLow looks like a good element for central superscript
+        m_pSerializer->startElementNS(XML_m, XML_limLow);
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        flags &= ~( 1 << CSUB );
+        if( flags == 0 )
+            HandleNode( pNode->GetBody(), nLevel + 1 );
+        else
+            HandleSubSupScriptInternal( pNode, nLevel, flags );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+        m_pSerializer->startElementNS(XML_m, XML_lim);
+        HandleNode( pNode->GetSubSup( CSUB ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_lim );
+        m_pSerializer->endElementNS( XML_m, XML_limLow );
+    }
+    else if(( flags & ( 1 << CSUP )) == ( 1 << CSUP ))
+    { // m:limUpp looks like a good element for central superscript
+        m_pSerializer->startElementNS(XML_m, XML_limUpp);
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        flags &= ~( 1 << CSUP );
+        if( flags == 0 )
+            HandleNode( pNode->GetBody(), nLevel + 1 );
+        else
+            HandleSubSupScriptInternal( pNode, nLevel, flags );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+        m_pSerializer->startElementNS(XML_m, XML_lim);
+        HandleNode( pNode->GetSubSup( CSUP ), nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_lim );
+        m_pSerializer->endElementNS( XML_m, XML_limUpp );
+    }
+    else
+    {
+        SAL_WARN("starmath.ooxml", "Unhandled sub/sup combination");
+        // TODO do not do anything, this should be probably an assert()
+        // HandleAllSubNodes( pNode, nLevel );
+    }
+}
+
+void SmOoxmlExport::HandleMatrix( const SmMatrixNode* pNode, int nLevel )
+{
+    m_pSerializer->startElementNS(XML_m, XML_m);
+    for (size_t row = 0; row < pNode->GetNumRows(); ++row)
+    {
+        m_pSerializer->startElementNS(XML_m, XML_mr);
+        for (size_t col = 0; col < pNode->GetNumCols(); ++col)
+        {
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            if( const SmNode* node = pNode->GetSubNode( row * pNode->GetNumCols() + col ))
+                HandleNode( node, nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+        }
+        m_pSerializer->endElementNS( XML_m, XML_mr );
+    }
+    m_pSerializer->endElementNS( XML_m, XML_m );
+}
+
+void SmOoxmlExport::HandleBrace( const SmBraceNode* pNode, int nLevel )
+{
+    m_pSerializer->startElementNS(XML_m, XML_d);
+    m_pSerializer->startElementNS(XML_m, XML_dPr);
+
+    //check if the node has an opening brace
+    if( TNONE == pNode->OpeningBrace()->GetToken().eType )
+        m_pSerializer->singleElementNS(XML_m, XML_begChr, FSNS(XML_m, XML_val), "");
+    else
+        m_pSerializer->singleElementNS( XML_m, XML_begChr,
+            FSNS( XML_m, XML_val ), mathSymbolToString( pNode->OpeningBrace()) );
+
+    std::vector< const SmNode* > subnodes;
+    if( pNode->Body()->GetType() == SmNodeType::Bracebody )
+    {
+        const SmBracebodyNode* body = static_cast< const SmBracebodyNode* >( pNode->Body());
+        bool separatorWritten = false; // assume all separators are the same
+        for (size_t i = 0; i < body->GetNumSubNodes(); ++i)
+        {
+            const SmNode* subnode = body->GetSubNode( i );
+            if (subnode->GetType() == SmNodeType::Math || subnode->GetType() == SmNodeType::MathIdent)
+            { // do not write, but write what separator it is
+                const SmMathSymbolNode* math = static_cast< const SmMathSymbolNode* >( subnode );
+                if( !separatorWritten )
+                {
+                    m_pSerializer->singleElementNS( XML_m, XML_sepChr,
+                        FSNS( XML_m, XML_val ), mathSymbolToString(math) );
+                    separatorWritten = true;
+                }
+            }
+            else
+                subnodes.push_back( subnode );
+        }
+    }
+    else
+        subnodes.push_back( pNode->Body());
+
+    if( TNONE == pNode->ClosingBrace()->GetToken().eType )
+        m_pSerializer->singleElementNS(XML_m, XML_endChr, FSNS(XML_m, XML_val), "");
+    else
+        m_pSerializer->singleElementNS( XML_m, XML_endChr,
+            FSNS( XML_m, XML_val ), mathSymbolToString(pNode->ClosingBrace()) );
+
+    m_pSerializer->endElementNS( XML_m, XML_dPr );
+    for(const SmNode* subnode : subnodes)
+    {
+        m_pSerializer->startElementNS(XML_m, XML_e);
+        HandleNode( subnode, nLevel + 1 );
+        m_pSerializer->endElementNS( XML_m, XML_e );
+    }
+    m_pSerializer->endElementNS( XML_m, XML_d );
+}
+
+void SmOoxmlExport::HandleVerticalBrace( const SmVerticalBraceNode* pNode, int nLevel )
+{
+    SAL_INFO( "starmath.ooxml", "Vertical: " << int( pNode->GetToken().eType ));
+    switch( pNode->GetToken().eType )
+    {
+        case TOVERBRACE:
+        case TUNDERBRACE:
+        {
+            bool top = ( pNode->GetToken().eType == TOVERBRACE );
+            m_pSerializer->startElementNS(XML_m, top ? XML_limUpp : XML_limLow);
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            m_pSerializer->startElementNS(XML_m, XML_groupChr);
+            m_pSerializer->startElementNS(XML_m, XML_groupChrPr);
+            m_pSerializer->singleElementNS( XML_m, XML_chr,
+                FSNS( XML_m, XML_val ), mathSymbolToString(pNode->Brace()) );
+            // TODO not sure if pos and vertJc are correct
+            m_pSerializer->singleElementNS( XML_m, XML_pos,
+                FSNS( XML_m, XML_val ), top ? "top" : "bot" );
+            m_pSerializer->singleElementNS(XML_m, XML_vertJc, FSNS(XML_m, XML_val),
+                                           top ? "bot" : "top");
+            m_pSerializer->endElementNS( XML_m, XML_groupChrPr );
+            m_pSerializer->startElementNS(XML_m, XML_e);
+            HandleNode( pNode->Body(), nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->endElementNS( XML_m, XML_groupChr );
+            m_pSerializer->endElementNS( XML_m, XML_e );
+            m_pSerializer->startElementNS(XML_m, XML_lim);
+            HandleNode( pNode->Script(), nLevel + 1 );
+            m_pSerializer->endElementNS( XML_m, XML_lim );
+            m_pSerializer->endElementNS( XML_m, top ? XML_limUpp : XML_limLow );
+            break;
+        }
+        default:
+            SAL_WARN("starmath.ooxml", "Unhandled vertical brace");
+            HandleAllSubNodes( pNode, nLevel );
+            break;
+    }
+}
+
+void SmOoxmlExport::HandleBlank()
+{
+    m_pSerializer->startElementNS(XML_m, XML_r);
+    m_pSerializer->startElementNS(XML_m, XML_t, FSNS(XML_xml, XML_space), "preserve");
+    m_pSerializer->write( " " );
+    m_pSerializer->endElementNS( XML_m, XML_t );
+    m_pSerializer->endElementNS( XML_m, XML_r );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/ooxmlexport.hxx b/starmath/source/ooxmlexport.hxx
new file mode 100644
index 000000000..fec33ab8e
--- /dev/null
+++ b/starmath/source/ooxmlexport.hxx
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_OOXMLEXPORT_HXX
+#define INCLUDED_STARMATH_SOURCE_OOXMLEXPORT_HXX
+
+#include "wordexportbase.hxx"
+
+#include <sax/fshelper.hxx>
+#include <oox/core/filterbase.hxx>
+#include <oox/export/utils.hxx>
+
+/**
+ Class implementing writing of formulas to OOXML.
+ */
+class SmOoxmlExport : public SmWordExportBase
+{
+public:
+    SmOoxmlExport(const SmNode* pIn, oox::core::OoxmlVersion version,
+            oox::drawingml::DocumentType documentType);
+    void ConvertFromStarMath( const ::sax_fastparser::FSHelperPtr& m_pSerializer, const sal_Int8 );
+private:
+    void HandleVerticalStack( const SmNode* pNode, int nLevel ) override;
+    void HandleText( const SmNode* pNode, int nLevel ) override;
+    void HandleFractions( const SmNode* pNode, int nLevel, const char* type ) override;
+    void HandleRoot( const SmRootNode* pNode, int nLevel ) override;
+    void HandleAttribute( const SmAttributNode* pNode, int nLevel ) override;
+    void HandleOperator( const SmOperNode* pNode, int nLevel ) override;
+    void HandleSubSupScriptInternal( const SmSubSupNode* pNode, int nLevel, int flags ) override;
+    void HandleMatrix( const SmMatrixNode* pNode, int nLevel ) override;
+    void HandleBrace( const SmBraceNode* pNode, int nLevel ) override;
+    void HandleVerticalBrace( const SmVerticalBraceNode* pNode, int nLevel ) override;
+    void HandleBlank() override;
+    ::sax_fastparser::FSHelperPtr m_pSerializer;
+    oox::core::OoxmlVersion version;
+    /// needed to determine markup for nested run properties
+    oox::drawingml::DocumentType const m_DocumentType;
+};
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/ooxmlimport.cxx b/starmath/source/ooxmlimport.cxx
new file mode 100644
index 000000000..034919787
--- /dev/null
+++ b/starmath/source/ooxmlimport.cxx
@@ -0,0 +1,681 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+
+#include "ooxmlimport.hxx"
+#include <types.hxx>
+
+#include <oox/mathml/importutils.hxx>
+#include <oox/token/namespaces.hxx>
+#include <rtl/ustring.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <sal/log.hxx>
+
+using namespace oox::formulaimport;
+
+/*
+The primary internal data structure for the formula is the text representation
+(the SmNode tree is built from it), so read data must be converted into this format.
+*/
+
+#define OPENING( token ) XML_STREAM_OPENING( token )
+#define CLOSING( token ) XML_STREAM_CLOSING( token )
+
+// TODO create IS_OPENING(), IS_CLOSING() instead of doing 'next == OPENING( next )' ?
+
+SmOoxmlImport::SmOoxmlImport( oox::formulaimport::XmlStream& s )
+    : m_rStream( s )
+{
+}
+
+OUString SmOoxmlImport::ConvertToStarMath()
+{
+    return handleStream();
+}
+
+// "toplevel" of reading, there will be oMath (if there was oMathPara, that was
+// up to the parent component to handle)
+
+// NOT complete
+OUString SmOoxmlImport::handleStream()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( oMath ));
+    OUStringBuffer ret;
+    while( !m_rStream.atEnd() && m_rStream.currentToken() != CLOSING( M_TOKEN( oMath )))
+    {
+        // strictly speaking, it is not OMathArg here, but currently supported
+        // functionality is the same like OMathArg, in the future this may need improving
+        OUString item = readOMathArg( M_TOKEN( oMath ));
+        if( item.isEmpty())
+            continue;
+        if( !ret.isEmpty())
+            ret.append(" ");
+        ret.append(item);
+    }
+    m_rStream.ensureClosingTag( M_TOKEN( oMath ));
+    // Placeholders are written out as nothing (i.e. nothing inside e.g. the <e> element),
+    // which will result in "{}" in the formula text. Fix this up.
+    OUString ret2 = ret.makeStringAndClear().replaceAll( "{}", "<?>" );
+    // And as a result, empty parts of the formula that are not placeholders are written out
+    // as a single space, so fix that up too.
+    ret2 = ret2.replaceAll( "{ }", "{}" );
+    SAL_INFO( "starmath.ooxml", "Formula: " << ret2 );
+    return ret2;
+}
+
+OUString SmOoxmlImport::readOMathArg( int stoptoken )
+{
+    OUStringBuffer ret;
+    while( !m_rStream.atEnd() && m_rStream.currentToken() != CLOSING( stoptoken ))
+    {
+        if( !ret.isEmpty())
+            ret.append(" ");
+        switch( m_rStream.currentToken())
+        {
+            case OPENING( M_TOKEN( acc )):
+                ret.append(handleAcc());
+                break;
+            case OPENING( M_TOKEN( bar )):
+                ret.append(handleBar());
+                break;
+            case OPENING( M_TOKEN( box )):
+                ret.append(handleBox());
+                break;
+            case OPENING( M_TOKEN( borderBox )):
+                ret.append(handleBorderBox());
+                break;
+            case OPENING( M_TOKEN( d )):
+                ret.append(handleD());
+                break;
+            case OPENING( M_TOKEN( eqArr )):
+                ret.append(handleEqArr());
+                break;
+            case OPENING( M_TOKEN( f )):
+                ret.append(handleF());
+                break;
+            case OPENING( M_TOKEN( func )):
+                ret.append(handleFunc());
+                break;
+            case OPENING( M_TOKEN( limLow )):
+                ret.append(handleLimLowUpp( LimLow ));
+                break;
+            case OPENING( M_TOKEN( limUpp )):
+                ret.append(handleLimLowUpp( LimUpp ));
+                break;
+            case OPENING( M_TOKEN( groupChr )):
+                ret.append(handleGroupChr());
+                break;
+            case OPENING( M_TOKEN( m )):
+                ret.append(handleM());
+                break;
+            case OPENING( M_TOKEN( nary )):
+                ret.append(handleNary());
+                break;
+            case OPENING( M_TOKEN( r )):
+                ret.append(handleR());
+                break;
+            case OPENING( M_TOKEN( rad )):
+                ret.append(handleRad());
+                break;
+            case OPENING( M_TOKEN( sPre )):
+                ret.append(handleSpre());
+                break;
+            case OPENING( M_TOKEN( sSub )):
+                ret.append(handleSsub());
+                break;
+            case OPENING( M_TOKEN( sSubSup )):
+                ret.append(handleSsubsup());
+                break;
+            case OPENING( M_TOKEN( sSup )):
+                ret.append(handleSsup());
+                break;
+            default:
+                m_rStream.handleUnexpectedTag();
+                break;
+        }
+    }
+    return ret.makeStringAndClear();
+}
+
+OUString SmOoxmlImport::readOMathArgInElement( int token )
+{
+    m_rStream.ensureOpeningTag( token );
+    OUString ret = readOMathArg( token );
+    m_rStream.ensureClosingTag( token );
+    return ret;
+}
+
+OUString SmOoxmlImport::handleAcc()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( acc ));
+    sal_Unicode accChr = 0x302;
+    if( XmlStream::Tag accPr = m_rStream.checkOpeningTag( M_TOKEN( accPr )))
+    {
+        if( XmlStream::Tag chr = m_rStream.checkOpeningTag( M_TOKEN( chr )))
+        {
+            accChr = chr.attribute( M_TOKEN( val ), accChr );
+            m_rStream.ensureClosingTag( M_TOKEN( chr ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( accPr ));
+    }
+    // see aTokenTable in parse.cxx
+    OUString acc;
+    switch( accChr )
+    {
+        case MS_BAR:
+        case MS_COMBBAR:
+            acc = "bar";
+            break;
+        case MS_CHECK:
+        case MS_COMBCHECK:
+            acc = "check";
+            break;
+        case MS_ACUTE:
+        case MS_COMBACUTE:
+            acc = "acute";
+            break;
+        case MS_COMBOVERLINE:
+            acc = "overline";
+            break;
+        case MS_GRAVE:
+        case MS_COMBGRAVE:
+            acc = "grave";
+            break;
+        case MS_BREVE:
+        case MS_COMBBREVE:
+            acc = "breve";
+            break;
+        case MS_CIRCLE:
+        case MS_COMBCIRCLE:
+            acc = "circle";
+            break;
+        case MS_RIGHTARROW:
+        case MS_VEC:
+            // prefer wide variants for these 3, .docx can't seem to differentiate
+            // between e.g. 'vec' and 'widevec', if whatever the accent is above is short, this
+            // shouldn't matter, but short above a longer expression doesn't look right
+            acc = "widevec";
+            break;
+        case MS_HARPOON:
+            acc = "wideharpoon";
+            break;
+        case MS_TILDE:
+        case MS_COMBTILDE:
+            acc = "widetilde";
+            break;
+        case MS_HAT:
+        case MS_COMBHAT:
+            acc = "widehat";
+            break;
+        case MS_DOT:
+        case MS_COMBDOT:
+            acc = "dot";
+            break;
+        case MS_DDOT:
+        case MS_COMBDDOT:
+            acc = "ddot";
+            break;
+        case MS_DDDOT:
+            acc = "dddot";
+            break;
+        default:
+            acc = "acute";
+            SAL_WARN( "starmath.ooxml", "Unknown m:chr in m:acc \'" << OUString(accChr) << "\'" );
+            break;
+    }
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( acc ));
+    return acc + " {" + e + "}";
+}
+
+OUString SmOoxmlImport::handleBar()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( bar ));
+    enum pos_t { top, bot } topbot = bot;
+    if( m_rStream.checkOpeningTag( M_TOKEN( barPr )))
+    {
+        if( XmlStream::Tag pos = m_rStream.checkOpeningTag( M_TOKEN( pos )))
+        {
+            if( pos.attribute( M_TOKEN( val )) == "top" )
+                topbot = top;
+            else if( pos.attribute( M_TOKEN( val )) == "bot" )
+                topbot = bot;
+            m_rStream.ensureClosingTag( M_TOKEN( pos ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( barPr ));
+    }
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( bar ));
+    if( topbot == top )
+        return "overline {" + e + "}";
+    else
+        return "underline {" + e + "}";
+}
+
+OUString SmOoxmlImport::handleBox()
+{
+    // there does not seem to be functionality in LO to actually implement this
+    // (or is there), but at least read in the contents instead of ignoring them
+    m_rStream.ensureOpeningTag( M_TOKEN( box ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( box ));
+    return e;
+}
+
+
+OUString SmOoxmlImport::handleBorderBox()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( borderBox ));
+    bool isStrikeH = false;
+    if( m_rStream.checkOpeningTag( M_TOKEN( borderBoxPr )))
+    {
+        if( XmlStream::Tag strikeH = m_rStream.checkOpeningTag( M_TOKEN( strikeH )))
+        {
+            if( strikeH.attribute( M_TOKEN( val ), false ))
+                isStrikeH = true;
+            m_rStream.ensureClosingTag( M_TOKEN( strikeH ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( borderBoxPr ));
+    }
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( borderBox ));
+    if( isStrikeH )
+        return "overstrike {" + e + "}";
+    // LO does not seem to implement anything for handling the other cases
+    return e;
+}
+
+OUString SmOoxmlImport::handleD()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( d ));
+    OUString opening = "(";
+    OUString closing = ")";
+    OUString separator = "|";
+    if( XmlStream::Tag dPr = m_rStream.checkOpeningTag( M_TOKEN( dPr )))
+    {
+        if( XmlStream::Tag begChr = m_rStream.checkOpeningTag( M_TOKEN( begChr )))
+        {
+            opening = begChr.attribute( M_TOKEN( val ), opening );
+            m_rStream.ensureClosingTag( M_TOKEN( begChr ));
+        }
+        if( XmlStream::Tag sepChr = m_rStream.checkOpeningTag( M_TOKEN( sepChr )))
+        {
+            separator = sepChr.attribute( M_TOKEN( val ), separator );
+            m_rStream.ensureClosingTag( M_TOKEN( sepChr ));
+        }
+        if( XmlStream::Tag endChr = m_rStream.checkOpeningTag( M_TOKEN( endChr )))
+        {
+            closing = endChr.attribute( M_TOKEN( val ), closing );
+            m_rStream.ensureClosingTag( M_TOKEN( endChr ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( dPr ));
+    }
+    if( opening == "{" )
+        opening = "left lbrace ";
+    if( closing == "}" )
+        closing = " right rbrace";
+    if( opening == u"\u27e6" )
+        opening = "left ldbracket ";
+    if( closing == u"\u27e7" )
+        closing = " right rdbracket";
+    if( opening == "|" )
+        opening = "left lline ";
+    if( closing == "|" )
+        closing = " right rline";
+    if (opening == OUStringChar(MS_DLINE)
+        || opening == OUStringChar(MS_DVERTLINE))
+        opening = "left ldline ";
+    if (closing == OUStringChar(MS_DLINE)
+        || closing == OUStringChar(MS_DVERTLINE))
+        closing = " right rdline";
+    if (opening == OUStringChar(MS_LANGLE)
+        || opening == OUStringChar(MS_LMATHANGLE))
+        opening = "left langle ";
+    if (closing == OUStringChar(MS_RANGLE)
+        || closing == OUStringChar(MS_RMATHANGLE))
+        closing = " right rangle";
+    // use scalable brackets (the explicit "left" or "right")
+    if( opening == "(" || opening == "[" )
+        opening = "left " + opening;
+    if( closing == ")" || closing == "]" )
+        closing = " right " + closing;
+    if( separator == "|" ) // plain "|" would be actually "V" (logical or)
+        separator = " mline ";
+    if( opening.isEmpty())
+        opening = "left none ";
+    if( closing.isEmpty())
+        closing = " right none";
+    OUStringBuffer ret;
+    ret.append( opening );
+    bool first = true;
+    while( m_rStream.findTag( OPENING( M_TOKEN( e ))))
+    {
+        if( !first )
+            ret.append( separator );
+        first = false;
+        ret.append( readOMathArgInElement( M_TOKEN( e )));
+    }
+    ret.append( closing );
+    m_rStream.ensureClosingTag( M_TOKEN( d ));
+    return ret.makeStringAndClear();
+}
+
+OUString SmOoxmlImport::handleEqArr()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( eqArr ));
+    OUStringBuffer ret;
+    do
+    { // there must be at least one m:e
+        if( !ret.isEmpty())
+            ret.append("#");
+        ret.append(" ");
+        ret.append(readOMathArgInElement( M_TOKEN( e )));
+        ret.append(" ");
+    } while( !m_rStream.atEnd() && m_rStream.findTag( OPENING( M_TOKEN( e ))));
+    m_rStream.ensureClosingTag( M_TOKEN( eqArr ));
+    return "stack {" + ret.makeStringAndClear() + "}";
+}
+
+OUString SmOoxmlImport::handleF()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( f ));
+    enum operation_t { bar, lin, noBar } operation = bar;
+    if( m_rStream.checkOpeningTag( M_TOKEN( fPr )))
+    {
+        if( XmlStream::Tag type = m_rStream.checkOpeningTag( M_TOKEN( type )))
+        {
+            if( type.attribute( M_TOKEN( val )) == "bar" )
+                operation = bar;
+            else if( type.attribute( M_TOKEN( val )) == "lin" )
+                operation = lin;
+            else if( type.attribute( M_TOKEN( val )) == "noBar" )
+                operation = noBar;
+            m_rStream.ensureClosingTag( M_TOKEN( type ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( fPr ));
+    }
+    OUString num = readOMathArgInElement( M_TOKEN( num ));
+    OUString den = readOMathArgInElement( M_TOKEN( den ));
+    m_rStream.ensureClosingTag( M_TOKEN( f ));
+    if( operation == bar )
+        return "{" + num + "} over {" + den + "}";
+    else if( operation == lin )
+        return "{" + num + "} / {" + den + "}";
+    else // noBar
+    {
+        return "binom {" + num + "} {" + den + "}";
+    }
+}
+
+OUString SmOoxmlImport::handleFunc()
+{
+//lim from{x rightarrow 1} x
+    m_rStream.ensureOpeningTag( M_TOKEN( func ));
+    OUString fname = readOMathArgInElement( M_TOKEN( fName ));
+    // fix the various functions
+    if( fname.startsWith( "lim csub {" ))
+        fname = "lim from {" + fname.copy( 10 );
+    OUString ret = fname + " {" + readOMathArgInElement( M_TOKEN( e )) + "}";
+    m_rStream.ensureClosingTag( M_TOKEN( func ));
+    return ret;
+}
+
+OUString SmOoxmlImport::handleLimLowUpp( LimLowUpp_t limlowupp )
+{
+    int token = limlowupp == LimLow ? M_TOKEN( limLow ) : M_TOKEN( limUpp );
+    m_rStream.ensureOpeningTag( token );
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    OUString lim = readOMathArgInElement( M_TOKEN( lim ));
+    m_rStream.ensureClosingTag( token );
+    // fix up overbrace/underbrace  (use { }, as {} will be converted to a placeholder)
+    if( limlowupp == LimUpp && e.endsWith( " overbrace { }" ))
+        return e.copy( 0, e.getLength() - 2 ) + lim + "}";
+    if( limlowupp == LimLow && e.endsWith( " underbrace { }" ))
+        return e.copy( 0, e.getLength() - 2 ) + lim + "}";
+    return e
+        + ( limlowupp == LimLow ? OUStringLiteral( " csub {" ) : OUStringLiteral( " csup {" ))
+        + lim + "}";
+}
+
+OUString SmOoxmlImport::handleGroupChr()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( groupChr ));
+    sal_Unicode chr = 0x23df;
+    enum pos_t { top, bot } pos = bot;
+    if( m_rStream.checkOpeningTag( M_TOKEN( groupChrPr )))
+    {
+        if( XmlStream::Tag chrTag = m_rStream.checkOpeningTag( M_TOKEN( chr )))
+        {
+            chr = chrTag.attribute( M_TOKEN( val ), chr );
+            m_rStream.ensureClosingTag( M_TOKEN( chr ));
+        }
+        if( XmlStream::Tag posTag = m_rStream.checkOpeningTag( M_TOKEN( pos )))
+        {
+            if( posTag.attribute( M_TOKEN( val ), OUString( "bot" )) == "top" )
+                pos = top;
+            m_rStream.ensureClosingTag( M_TOKEN( pos ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( groupChrPr ));
+    }
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( groupChr ));
+    if( pos == top && chr == u'\x23de')
+        return "{" + e + "} overbrace { }";
+    if( pos == bot && chr == u'\x23df')
+        return "{" + e + "} underbrace { }";
+    if( pos == top )
+        return "{" + e + "} csup {" + OUStringChar( chr ) + "}";
+    else
+        return "{" + e + "} csub {" + OUStringChar( chr ) + "}";
+}
+
+OUString SmOoxmlImport::handleM()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( m ));
+    OUStringBuffer allrows;
+    do // there must be at least one m:mr
+    {
+        m_rStream.ensureOpeningTag( M_TOKEN( mr ));
+        OUStringBuffer row;
+        do // there must be at least one m:e
+        {
+            if( !row.isEmpty())
+                row.append(" # ");
+            row.append(readOMathArgInElement( M_TOKEN( e )));
+        } while( !m_rStream.atEnd() && m_rStream.findTag( OPENING( M_TOKEN( e ))));
+        if( !allrows.isEmpty())
+            allrows.append(" ## ");
+        allrows.append(row);
+        m_rStream.ensureClosingTag( M_TOKEN( mr ));
+    } while( !m_rStream.atEnd() && m_rStream.findTag( OPENING( M_TOKEN( mr ))));
+    m_rStream.ensureClosingTag( M_TOKEN( m ));
+    return "matrix {" + allrows.makeStringAndClear() + "}";
+}
+
+OUString SmOoxmlImport::handleNary()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( nary ));
+    sal_Unicode chr = 0x222b;
+    bool subHide = false;
+    bool supHide = false;
+    if( m_rStream.checkOpeningTag( M_TOKEN( naryPr )))
+    {
+        if( XmlStream::Tag chrTag = m_rStream.checkOpeningTag( M_TOKEN( chr )))
+        {
+            chr = chrTag.attribute( M_TOKEN( val ), chr );
+            m_rStream.ensureClosingTag( M_TOKEN( chr ));
+        }
+        if( XmlStream::Tag subHideTag = m_rStream.checkOpeningTag( M_TOKEN( subHide )))
+        {
+            subHide = subHideTag.attribute( M_TOKEN( val ), subHide );
+            m_rStream.ensureClosingTag( M_TOKEN( subHide ));
+        }
+        if( XmlStream::Tag supHideTag = m_rStream.checkOpeningTag( M_TOKEN( supHide )))
+        {
+            supHide = supHideTag.attribute( M_TOKEN( val ), supHide );
+            m_rStream.ensureClosingTag( M_TOKEN( supHide ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( naryPr ));
+    }
+    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
+    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    OUString ret;
+    switch( chr )
+    {
+        case MS_INT:
+            ret = "int";
+            break;
+        case MS_IINT:
+            ret = "iint";
+            break;
+        case MS_IIINT:
+            ret = "iiint";
+            break;
+        case MS_LINT:
+            ret = "lint";
+            break;
+        case MS_LLINT:
+            ret = "llint";
+            break;
+        case MS_LLLINT:
+            ret = "lllint";
+            break;
+        case MS_PROD:
+            ret = "prod";
+            break;
+        case MS_COPROD:
+            ret = "coprod";
+            break;
+        case MS_SUM:
+            ret = "sum";
+            break;
+        default:
+            SAL_WARN( "starmath.ooxml", "Unknown m:nary chr \'" << OUString(chr) << "\'" );
+            break;
+    }
+    if( !subHide )
+        ret += " from {" + sub + "}";
+    if( !supHide )
+        ret += " to {" + sup + "}";
+    ret += " {" + e + "}";
+    m_rStream.ensureClosingTag( M_TOKEN( nary ));
+    return ret;
+}
+
+// NOT complete
+OUString SmOoxmlImport::handleR()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( r ));
+    bool normal = false;
+    bool literal = false;
+    if( XmlStream::Tag rPr = m_rStream.checkOpeningTag( M_TOKEN( rPr )))
+    {
+        if( XmlStream::Tag litTag = m_rStream.checkOpeningTag( M_TOKEN( lit )))
+        {
+            literal = litTag.attribute( M_TOKEN( val ), true );
+            m_rStream.ensureClosingTag( M_TOKEN( lit ));
+        }
+        if( XmlStream::Tag norTag = m_rStream.checkOpeningTag( M_TOKEN( nor )))
+        {
+            normal = norTag.attribute( M_TOKEN( val ), true );
+            m_rStream.ensureClosingTag( M_TOKEN( nor ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( rPr ));
+    }
+    OUStringBuffer text;
+    while( !m_rStream.atEnd() && m_rStream.currentToken() != CLOSING( m_rStream.currentToken()))
+    {
+        switch( m_rStream.currentToken())
+        {
+            case OPENING( M_TOKEN( t )):
+            {
+                XmlStream::Tag rtag = m_rStream.ensureOpeningTag( M_TOKEN( t ));
+                if( rtag.attribute( OOX_TOKEN( xml, space )) != "preserve" )
+                    text.append(rtag.text.trim());
+                else
+                    text.append(rtag.text);
+                m_rStream.ensureClosingTag( M_TOKEN( t ));
+                break;
+            }
+            default:
+                m_rStream.handleUnexpectedTag();
+                break;
+        }
+    }
+    m_rStream.ensureClosingTag( M_TOKEN( r ));
+    if( normal || literal )
+    {
+        text.insert(0, "\"");
+        text.append("\"");
+    }
+    return text.makeStringAndClear().replaceAll("{", "\\{").replaceAll("}", "\\}");
+}
+
+OUString SmOoxmlImport::handleRad()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( rad ));
+    bool degHide = false;
+    if( m_rStream.checkOpeningTag( M_TOKEN( radPr )))
+    {
+        if( XmlStream::Tag degHideTag = m_rStream.checkOpeningTag( M_TOKEN( degHide )))
+        {
+            degHide = degHideTag.attribute( M_TOKEN( val ), degHide );
+            m_rStream.ensureClosingTag( M_TOKEN( degHide ));
+        }
+        m_rStream.ensureClosingTag( M_TOKEN( radPr ));
+    }
+    OUString deg = readOMathArgInElement( M_TOKEN( deg ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( rad ));
+    if( degHide )
+        return "sqrt {" + e + "}";
+    else
+        return "nroot {" + deg + "} {" + e + "}";
+}
+
+OUString SmOoxmlImport::handleSpre()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( sPre ));
+    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
+    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    m_rStream.ensureClosingTag( M_TOKEN( sPre ));
+    return "{" + e + "} lsub {" + sub + "} lsup {" + sup + "}";
+}
+
+OUString SmOoxmlImport::handleSsub()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( sSub ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
+    m_rStream.ensureClosingTag( M_TOKEN( sSub ));
+    return "{" + e + "} rsub {" + sub + "}";
+}
+
+OUString SmOoxmlImport::handleSsubsup()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( sSubSup ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
+    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
+    m_rStream.ensureClosingTag( M_TOKEN( sSubSup ));
+    return "{" + e + "} rsub {" + sub + "} rsup {" + sup + "}";
+}
+
+OUString SmOoxmlImport::handleSsup()
+{
+    m_rStream.ensureOpeningTag( M_TOKEN( sSup ));
+    OUString e = readOMathArgInElement( M_TOKEN( e ));
+    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
+    m_rStream.ensureClosingTag( M_TOKEN( sSup ));
+    return "{" + e + "} ^ {" + sup + "}";
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/ooxmlimport.hxx b/starmath/source/ooxmlimport.hxx
new file mode 100644
index 000000000..5fc7a6a33
--- /dev/null
+++ b/starmath/source/ooxmlimport.hxx
@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_OOXMLIMPORT_HXX
+#define INCLUDED_STARMATH_SOURCE_OOXMLIMPORT_HXX
+
+#include <rtl/ustring.hxx>
+
+namespace oox::formulaimport { class XmlStream; }
+/**
+ Class implementing reading of formulas from OOXML. The toplevel element is expected
+ to be oMath (handle oMathPara outside of this code).
+ */
+class SmOoxmlImport
+{
+public:
+    explicit SmOoxmlImport( oox::formulaimport::XmlStream& stream );
+    OUString ConvertToStarMath();
+private:
+    OUString handleStream();
+    OUString handleAcc();
+    OUString handleBar();
+    OUString handleBox();
+    OUString handleBorderBox();
+    OUString handleD();
+    OUString handleEqArr();
+    OUString handleF();
+    OUString handleFunc();
+    enum LimLowUpp_t { LimLow, LimUpp };
+    OUString handleLimLowUpp( LimLowUpp_t limlowupp );
+    OUString handleGroupChr();
+    OUString handleM();
+    OUString handleNary();
+    OUString handleR();
+    OUString handleRad();
+    OUString handleSpre();
+    OUString handleSsub();
+    OUString handleSsubsup();
+    OUString handleSsup();
+    OUString readOMathArg( int stoptoken );
+    OUString readOMathArgInElement( int token );
+
+    oox::formulaimport::XmlStream& m_rStream;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/parse.cxx b/starmath/source/parse.cxx
new file mode 100644
index 000000000..67512e4a4
--- /dev/null
+++ b/starmath/source/parse.cxx
@@ -0,0 +1,2502 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <memory>
+#include <com/sun/star/i18n/UnicodeType.hpp>
+#include <com/sun/star/i18n/KParseTokens.hpp>
+#include <com/sun/star/i18n/KParseType.hpp>
+#include <i18nlangtag/lang.h>
+#include <tools/lineend.hxx>
+#include <unotools/configmgr.hxx>
+#include <unotools/syslocale.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+#include <rtl/character.hxx>
+#include <node.hxx>
+#include <parse.hxx>
+#include <strings.hrc>
+#include <smmod.hxx>
+#include "cfgitem.hxx"
+#include <cassert>
+#include <stack>
+
+using namespace ::com::sun::star::i18n;
+
+
+SmToken::SmToken()
+    : eType(TUNKNOWN)
+    , cMathChar('\0')
+    , nGroup(TG::NONE)
+    , nLevel(0)
+    , nRow(0)
+    , nCol(0)
+{
+}
+
+SmToken::SmToken(SmTokenType eTokenType,
+                 sal_Unicode cMath,
+                 const char* pText,
+                 TG nTokenGroup,
+                 sal_uInt16 nTokenLevel)
+    : aText(OUString::createFromAscii(pText))
+    , eType(eTokenType)
+    , cMathChar(cMath)
+    , nGroup(nTokenGroup)
+    , nLevel(nTokenLevel)
+    , nRow(0)
+    , nCol(0)
+{
+}
+
+//Definition of math keywords
+static const SmTokenTableEntry aTokenTable[] =
+{
+    { "abs", TABS, '\0', TG::UnOper, 13 },
+    { "acute", TACUTE, MS_ACUTE, TG::Attribute, 5 },
+    { "aleph" , TALEPH, MS_ALEPH, TG::Standalone, 5 },
+    { "alignb", TALIGNC, '\0', TG::Align, 0},
+    { "alignc", TALIGNC, '\0', TG::Align, 0},
+    { "alignl", TALIGNL, '\0', TG::Align, 0},
+    { "alignm", TALIGNC, '\0', TG::Align, 0},
+    { "alignr", TALIGNR, '\0', TG::Align, 0},
+    { "alignt", TALIGNC, '\0', TG::Align, 0},
+    { "and", TAND, MS_AND, TG::Product, 0},
+    { "approx", TAPPROX, MS_APPROX, TG::Relation, 0},
+    { "aqua", TAQUA, '\0', TG::Color, 0},
+    { "arccos", TACOS, '\0', TG::Function, 5},
+    { "arccot", TACOT, '\0', TG::Function, 5},
+    { "arcosh", TACOSH, '\0', TG::Function, 5 },
+    { "arcoth", TACOTH, '\0', TG::Function, 5 },
+    { "arcsin", TASIN, '\0', TG::Function, 5},
+    { "arctan", TATAN, '\0', TG::Function, 5},
+    { "arsinh", TASINH, '\0', TG::Function, 5},
+    { "artanh", TATANH, '\0', TG::Function, 5},
+    { "backepsilon" , TBACKEPSILON, MS_BACKEPSILON, TG::Standalone, 5},
+    { "bar", TBAR, MS_BAR, TG::Attribute, 5},
+    { "binom", TBINOM, '\0', TG::NONE, 5 },
+    { "black", TBLACK, '\0', TG::Color, 0},
+    { "blue", TBLUE, '\0', TG::Color, 0},
+    { "bold", TBOLD, '\0', TG::FontAttr, 5},
+    { "boper", TBOPER, '\0', TG::Product, 0},
+    { "breve", TBREVE, MS_BREVE, TG::Attribute, 5},
+    { "bslash", TBACKSLASH, MS_BACKSLASH, TG::Product, 0 },
+    { "cdot", TCDOT, MS_CDOT, TG::Product, 0},
+    { "check", TCHECK, MS_CHECK, TG::Attribute, 5},
+    { "circ" , TCIRC, MS_CIRC, TG::Standalone, 5},
+    { "circle", TCIRCLE, MS_CIRCLE, TG::Attribute, 5},
+    { "color", TCOLOR, '\0', TG::FontAttr, 5},
+    { "coprod", TCOPROD, MS_COPROD, TG::Oper, 5},
+    { "cos", TCOS, '\0', TG::Function, 5},
+    { "cosh", TCOSH, '\0', TG::Function, 5},
+    { "cot", TCOT, '\0', TG::Function, 5},
+    { "coth", TCOTH, '\0', TG::Function, 5},
+    { "csub", TCSUB, '\0', TG::Power, 0},
+    { "csup", TCSUP, '\0', TG::Power, 0},
+    { "cyan", TCYAN, '\0', TG::Color, 0},
+    { "dddot", TDDDOT, MS_DDDOT, TG::Attribute, 5},
+    { "ddot", TDDOT, MS_DDOT, TG::Attribute, 5},
+    { "def", TDEF, MS_DEF, TG::Relation, 0},
+    { "div", TDIV, MS_DIV, TG::Product, 0},
+    { "divides", TDIVIDES, MS_LINE, TG::Relation, 0},
+    { "dlarrow" , TDLARROW, MS_DLARROW, TG::Standalone, 5},
+    { "dlrarrow" , TDLRARROW, MS_DLRARROW, TG::Standalone, 5},
+    { "dot", TDOT, MS_DOT, TG::Attribute, 5},
+    { "dotsaxis", TDOTSAXIS, MS_DOTSAXIS, TG::Standalone, 5}, // 5 to continue expression
+    { "dotsdiag", TDOTSDIAG, MS_DOTSUP, TG::Standalone, 5},
+    { "dotsdown", TDOTSDOWN, MS_DOTSDOWN, TG::Standalone, 5},
+    { "dotslow", TDOTSLOW, MS_DOTSLOW, TG::Standalone, 5},
+    { "dotsup", TDOTSUP, MS_DOTSUP, TG::Standalone, 5},
+    { "dotsvert", TDOTSVERT, MS_DOTSVERT, TG::Standalone, 5},
+    { "downarrow" , TDOWNARROW, MS_DOWNARROW, TG::Standalone, 5},
+    { "drarrow" , TDRARROW, MS_DRARROW, TG::Standalone, 5},
+    { "emptyset" , TEMPTYSET, MS_EMPTYSET, TG::Standalone, 5},
+    { "equiv", TEQUIV, MS_EQUIV, TG::Relation, 0},
+    { "exists", TEXISTS, MS_EXISTS, TG::Standalone, 5},
+    { "exp", TEXP, '\0', TG::Function, 5},
+    { "fact", TFACT, MS_FACT, TG::UnOper, 5},
+    { "fixed", TFIXED, '\0', TG::Font, 0},
+    { "font", TFONT, '\0', TG::FontAttr, 5},
+    { "forall", TFORALL, MS_FORALL, TG::Standalone, 5},
+    { "from", TFROM, '\0', TG::Limit, 0},
+    { "fuchsia", TFUCHSIA, '\0', TG::Color, 0},
+    { "func", TFUNC, '\0', TG::Function, 5},
+    { "ge", TGE, MS_GE, TG::Relation, 0},
+    { "geslant", TGESLANT, MS_GESLANT, TG::Relation, 0 },
+    { "gg", TGG, MS_GG, TG::Relation, 0},
+    { "grave", TGRAVE, MS_GRAVE, TG::Attribute, 5},
+    { "gray", TGRAY, '\0', TG::Color, 0},
+    { "green", TGREEN, '\0', TG::Color, 0},
+    { "gt", TGT, MS_GT, TG::Relation, 0},
+    { "harpoon", THARPOON, MS_HARPOON, TG::Attribute, 5},
+    { "hat", THAT, MS_HAT, TG::Attribute, 5},
+    { "hbar" , THBAR, MS_HBAR, TG::Standalone, 5},
+    { "iiint", TIIINT, MS_IIINT, TG::Oper, 5},
+    { "iint", TIINT, MS_IINT, TG::Oper, 5},
+    { "im" , TIM, MS_IM, TG::Standalone, 5 },
+    { "in", TIN, MS_IN, TG::Relation, 0},
+    { "infinity" , TINFINITY, MS_INFINITY, TG::Standalone, 5},
+    { "infty" , TINFINITY, MS_INFINITY, TG::Standalone, 5},
+    { "int", TINT, MS_INT, TG::Oper, 5},
+    { "intd", TINTD, MS_INT, TG::Oper, 5},
+    { "intersection", TINTERSECT, MS_INTERSECT, TG::Product, 0},
+    { "ital", TITALIC, '\0', TG::FontAttr, 5},
+    { "italic", TITALIC, '\0', TG::FontAttr, 5},
+    { "lambdabar" , TLAMBDABAR, MS_LAMBDABAR, TG::Standalone, 5},
+    { "langle", TLANGLE, MS_LMATHANGLE, TG::LBrace, 5},
+    { "laplace", TLAPLACE, MS_LAPLACE, TG::Standalone, 5},
+    { "lbrace", TLBRACE, MS_LBRACE, TG::LBrace, 5},
+    { "lceil", TLCEIL, MS_LCEIL, TG::LBrace, 5},
+    { "ldbracket", TLDBRACKET, MS_LDBRACKET, TG::LBrace, 5},
+    { "ldline", TLDLINE, MS_DVERTLINE, TG::LBrace, 5},
+    { "le", TLE, MS_LE, TG::Relation, 0},
+    { "left", TLEFT, '\0', TG::NONE, 5},
+    { "leftarrow" , TLEFTARROW, MS_LEFTARROW, TG::Standalone, 5},
+    { "leslant", TLESLANT, MS_LESLANT, TG::Relation, 0 },
+    { "lfloor", TLFLOOR, MS_LFLOOR, TG::LBrace, 5},
+    { "lim", TLIM, '\0', TG::Oper, 5},
+    { "lime", TLIME, '\0', TG::Color, 0},
+    { "liminf", TLIMINF, '\0', TG::Oper, 5},
+    { "limsup", TLIMSUP, '\0', TG::Oper, 5},
+    { "lint", TLINT, MS_LINT, TG::Oper, 5},
+    { "ll", TLL, MS_LL, TG::Relation, 0},
+    { "lline", TLLINE, MS_VERTLINE, TG::LBrace, 5},
+    { "llint", TLLINT, MS_LLINT, TG::Oper, 5},
+    { "lllint", TLLLINT, MS_LLLINT, TG::Oper, 5},
+    { "ln", TLN, '\0', TG::Function, 5},
+    { "log", TLOG, '\0', TG::Function, 5},
+    { "lsub", TLSUB, '\0', TG::Power, 0},
+    { "lsup", TLSUP, '\0', TG::Power, 0},
+    { "lt", TLT, MS_LT, TG::Relation, 0},
+    { "magenta", TMAGENTA, '\0', TG::Color, 0},
+    { "maroon", TMAROON, '\0', TG::Color, 0},
+    { "matrix", TMATRIX, '\0', TG::NONE, 5},
+    { "minusplus", TMINUSPLUS, MS_MINUSPLUS, TG::UnOper | TG::Sum, 5},
+    { "mline", TMLINE, MS_VERTLINE, TG::NONE, 0},      //! not in TG::RBrace, Level 0
+    { "nabla", TNABLA, MS_NABLA, TG::Standalone, 5},
+    { "navy", TNAVY, '\0', TG::Color, 0},
+    { "nbold", TNBOLD, '\0', TG::FontAttr, 5},
+    { "ndivides", TNDIVIDES, MS_NDIVIDES, TG::Relation, 0},
+    { "neg", TNEG, MS_NEG, TG::UnOper, 5 },
+    { "neq", TNEQ, MS_NEQ, TG::Relation, 0},
+    { "newline", TNEWLINE, '\0', TG::NONE, 0},
+    { "ni", TNI, MS_NI, TG::Relation, 0},
+    { "nitalic", TNITALIC, '\0', TG::FontAttr, 5},
+    { "none", TNONE, '\0', TG::LBrace | TG::RBrace, 0},
+    { "nospace", TNOSPACE, '\0', TG::Standalone, 5},
+    { "notexists", TNOTEXISTS, MS_NOTEXISTS, TG::Standalone, 5},
+    { "notin", TNOTIN, MS_NOTIN, TG::Relation, 0},
+    { "nprec", TNOTPRECEDES, MS_NOTPRECEDES, TG::Relation, 0 },
+    { "nroot", TNROOT, MS_SQRT, TG::UnOper, 5},
+    { "nsubset", TNSUBSET, MS_NSUBSET, TG::Relation, 0 },
+    { "nsubseteq", TNSUBSETEQ, MS_NSUBSETEQ, TG::Relation, 0 },
+    { "nsucc", TNOTSUCCEEDS, MS_NOTSUCCEEDS, TG::Relation, 0 },
+    { "nsupset", TNSUPSET, MS_NSUPSET, TG::Relation, 0 },
+    { "nsupseteq", TNSUPSETEQ, MS_NSUPSETEQ, TG::Relation, 0 },
+    { "odivide", TODIVIDE, MS_ODIVIDE, TG::Product, 0},
+    { "odot", TODOT, MS_ODOT, TG::Product, 0},
+    { "olive", TOLIVE, '\0', TG::Color, 0},
+    { "ominus", TOMINUS, MS_OMINUS, TG::Sum, 0},
+    { "oper", TOPER, '\0', TG::Oper, 5},
+    { "oplus", TOPLUS, MS_OPLUS, TG::Sum, 0},
+    { "or", TOR, MS_OR, TG::Sum, 0},
+    { "ortho", TORTHO, MS_ORTHO, TG::Relation, 0},
+    { "otimes", TOTIMES, MS_OTIMES, TG::Product, 0},
+    { "over", TOVER, '\0', TG::Product, 0},
+    { "overbrace", TOVERBRACE, MS_OVERBRACE, TG::Product, 5},
+    { "overline", TOVERLINE, '\0', TG::Attribute, 5},
+    { "overstrike", TOVERSTRIKE, '\0', TG::Attribute, 5},
+    { "owns", TNI, MS_NI, TG::Relation, 0},
+    { "parallel", TPARALLEL, MS_DLINE, TG::Relation, 0},
+    { "partial", TPARTIAL, MS_PARTIAL, TG::Standalone, 5 },
+    { "phantom", TPHANTOM, '\0', TG::FontAttr, 5},
+    { "plusminus", TPLUSMINUS, MS_PLUSMINUS, TG::UnOper | TG::Sum, 5},
+    { "prec", TPRECEDES, MS_PRECEDES, TG::Relation, 0 },
+    { "preccurlyeq", TPRECEDESEQUAL, MS_PRECEDESEQUAL, TG::Relation, 0 },
+    { "precsim", TPRECEDESEQUIV, MS_PRECEDESEQUIV, TG::Relation, 0 },
+    { "prod", TPROD, MS_PROD, TG::Oper, 5},
+    { "prop", TPROP, MS_PROP, TG::Relation, 0},
+    { "purple", TPURPLE, '\0', TG::Color, 0},
+    { "rangle", TRANGLE, MS_RMATHANGLE, TG::RBrace, 0},  //! 0 to terminate expression
+    { "rbrace", TRBRACE, MS_RBRACE, TG::RBrace, 0},
+    { "rceil", TRCEIL, MS_RCEIL, TG::RBrace, 0},
+    { "rdbracket", TRDBRACKET, MS_RDBRACKET, TG::RBrace, 0},
+    { "rdline", TRDLINE, MS_DVERTLINE, TG::RBrace, 0},
+    { "re" , TRE, MS_RE, TG::Standalone, 5 },
+    { "red", TRED, '\0', TG::Color, 0},
+    { "rfloor", TRFLOOR, MS_RFLOOR, TG::RBrace, 0},  //! 0 to terminate expression
+    { "rgb", TRGB, '\0', TG::Color, 0},
+    { "right", TRIGHT, '\0', TG::NONE, 0},
+    { "rightarrow" , TRIGHTARROW, MS_RIGHTARROW, TG::Standalone, 5},
+    { "rline", TRLINE, MS_VERTLINE, TG::RBrace, 0},  //! 0 to terminate expression
+    { "rsub", TRSUB, '\0', TG::Power, 0},
+    { "rsup", TRSUP, '\0', TG::Power, 0},
+    { "sans", TSANS, '\0', TG::Font, 0},
+    { "serif", TSERIF, '\0', TG::Font, 0},
+    { "setC" , TSETC, MS_SETC, TG::Standalone, 5},
+    { "setminus", TBACKSLASH, MS_BACKSLASH, TG::Product, 0 },
+    { "setN" , TSETN, MS_SETN, TG::Standalone, 5},
+    { "setQ" , TSETQ, MS_SETQ, TG::Standalone, 5},
+    { "setR" , TSETR, MS_SETR, TG::Standalone, 5},
+    { "setZ" , TSETZ, MS_SETZ, TG::Standalone, 5},
+    { "silver", TSILVER, '\0', TG::Color, 0},
+    { "sim", TSIM, MS_SIM, TG::Relation, 0},
+    { "simeq", TSIMEQ, MS_SIMEQ, TG::Relation, 0},
+    { "sin", TSIN, '\0', TG::Function, 5},
+    { "sinh", TSINH, '\0', TG::Function, 5},
+    { "size", TSIZE, '\0', TG::FontAttr, 5},
+    { "slash", TSLASH, MS_SLASH, TG::Product, 0 },
+    { "sqrt", TSQRT, MS_SQRT, TG::UnOper, 5},
+    { "stack", TSTACK, '\0', TG::NONE, 5},
+    { "sub", TRSUB, '\0', TG::Power, 0},
+    { "subset", TSUBSET, MS_SUBSET, TG::Relation, 0},
+    { "subseteq", TSUBSETEQ, MS_SUBSETEQ, TG::Relation, 0},
+    { "succ", TSUCCEEDS, MS_SUCCEEDS, TG::Relation, 0 },
+    { "succcurlyeq", TSUCCEEDSEQUAL, MS_SUCCEEDSEQUAL, TG::Relation, 0 },
+    { "succsim", TSUCCEEDSEQUIV, MS_SUCCEEDSEQUIV, TG::Relation, 0 },
+    { "sum", TSUM, MS_SUM, TG::Oper, 5},
+    { "sup", TRSUP, '\0', TG::Power, 0},
+    { "supset", TSUPSET, MS_SUPSET, TG::Relation, 0},
+    { "supseteq", TSUPSETEQ, MS_SUPSETEQ, TG::Relation, 0},
+    { "tan", TTAN, '\0', TG::Function, 5},
+    { "tanh", TTANH, '\0', TG::Function, 5},
+    { "teal", TTEAL, '\0', TG::Color, 0},
+    { "tilde", TTILDE, MS_TILDE, TG::Attribute, 5},
+    { "times", TTIMES, MS_TIMES, TG::Product, 0},
+    { "to", TTO, '\0', TG::Limit, 0},
+    { "toward", TTOWARD, MS_RIGHTARROW, TG::Relation, 0},
+    { "transl", TTRANSL, MS_TRANSL, TG::Relation, 0},
+    { "transr", TTRANSR, MS_TRANSR, TG::Relation, 0},
+    { "underbrace", TUNDERBRACE, MS_UNDERBRACE, TG::Product, 5},
+    { "underline", TUNDERLINE, '\0', TG::Attribute, 5},
+    { "union", TUNION, MS_UNION, TG::Sum, 0},
+    { "uoper", TUOPER, '\0', TG::UnOper, 5},
+    { "uparrow" , TUPARROW, MS_UPARROW, TG::Standalone, 5},
+    { "vec", TVEC, MS_VEC, TG::Attribute, 5},
+    { "white", TWHITE, '\0', TG::Color, 0},
+    { "widebslash", TWIDEBACKSLASH, MS_BACKSLASH, TG::Product, 0 },
+    { "wideharpoon", TWIDEHARPOON, MS_HARPOON, TG::Attribute, 5},
+    { "widehat", TWIDEHAT, MS_HAT, TG::Attribute, 5},
+    { "wideslash", TWIDESLASH, MS_SLASH, TG::Product, 0 },
+    { "widetilde", TWIDETILDE, MS_TILDE, TG::Attribute, 5},
+    { "widevec", TWIDEVEC, MS_VEC, TG::Attribute, 5},
+    { "wp" , TWP, MS_WP, TG::Standalone, 5},
+    { "yellow", TYELLOW, '\0', TG::Color, 0}
+};
+
+//Checks if keyword is in the list by SmTokenTableEntry.
+#if !defined NDEBUG
+static bool sortCompare(const SmTokenTableEntry & lhs, const SmTokenTableEntry & rhs)
+{
+    return OUString::createFromAscii(lhs.pIdent).compareToIgnoreAsciiCase(OUString::createFromAscii(rhs.pIdent)) < 0;
+}
+#endif
+
+//Checks if keyword is in the list.
+static bool findCompare(const SmTokenTableEntry & lhs, const OUString & s)
+{
+    return s.compareToIgnoreAsciiCaseAscii(lhs.pIdent) > 0;
+}
+
+//Returns the SmTokenTableEntry for a keyword
+const SmTokenTableEntry * SmParser::GetTokenTableEntry( const OUString &rName )
+{
+    static bool bSortKeyWords = false; // Flag: RTF-token table has been sorted.
+    if( !bSortKeyWords ) //First time sorts it.
+    {
+        assert( std::is_sorted( std::begin(aTokenTable), std::end(aTokenTable), sortCompare ) );
+        bSortKeyWords = true;
+    }
+
+    if (rName.isEmpty())return nullptr; //avoid null pointer exceptions
+
+    //Looks for the first keyword after or equal to rName in alphabetical order.
+    auto findIter = std::lower_bound( std::begin(aTokenTable), std::end(aTokenTable), rName, findCompare );
+    if ( findIter != std::end(aTokenTable) && rName.equalsIgnoreAsciiCaseAscii( findIter->pIdent ))return &*findIter; //check is equal
+
+    return nullptr; //not found
+}
+
+namespace {
+
+bool IsDelimiter( const OUString &rTxt, sal_Int32 nPos )
+    // returns 'true' iff cChar is '\0' or a delimiter
+{
+    assert(nPos <= rTxt.getLength()); //index out of range
+
+    if (nPos == rTxt.getLength())return true; //This is EOF
+
+    sal_Unicode cChar = rTxt[nPos];
+
+    // check if 'cChar' is in the delimiter table
+    static const sal_Unicode aDelimiterTable[] =
+    {
+        ' ', '{',  '}',  '(',  ')', '\t', '\n', '\r', '+',  '-',
+        '*',  '/',  '=',  '[',  ']',  '^',  '_',  '#',
+        '%',  '>',  '<',  '&',  '|', '\\', '"',  '~',  '`'
+    };//reordered by usage (by eye) for nanoseconds saving.
+
+    //checks the array
+    for (auto const &cDelimiter : aDelimiterTable)
+    {
+        if (cDelimiter == cChar)return true;
+    }
+
+    //special chars support
+    sal_Int16 nTypJp = SM_MOD()->GetSysLocale().GetCharClass().getType( rTxt, nPos );
+    return ( nTypJp == css::i18n::UnicodeType::SPACE_SEPARATOR ||
+             nTypJp == css::i18n::UnicodeType::CONTROL);
+}
+
+}//end namespace
+
+//Text replace onto m_aBufferString
+void SmParser::Replace( sal_Int32 nPos, sal_Int32 nLen, const OUString &rText )
+{
+    assert( nPos + nLen <= m_aBufferString.getLength() ); //checks if length allows text replace
+
+    m_aBufferString = m_aBufferString.replaceAt( nPos, nLen, rText ); //replace and reindex
+    sal_Int32 nChg = rText.getLength() - nLen;
+    m_nBufferIndex = m_nBufferIndex + nChg;
+    m_nTokenIndex = m_nTokenIndex + nChg;
+}
+
+void SmParser::NextToken() //Central part of the parser
+{
+    // First character may be any alphabetic
+    static const sal_Int32 coStartFlags =
+        KParseTokens::ANY_LETTER |
+        KParseTokens::IGNORE_LEADING_WS;
+
+    // Continuing characters may be any alphabetic
+    static const sal_Int32 coContFlags =
+        (coStartFlags & ~KParseTokens::IGNORE_LEADING_WS)
+        | KParseTokens::TWO_DOUBLE_QUOTES_BREAK_STRING;
+
+    // user-defined char continuing characters may be any alphanumeric or dot.
+    static const sal_Int32 coUserDefinedCharContFlags =
+        KParseTokens::ANY_LETTER_OR_NUMBER |
+        KParseTokens::ASC_DOT |
+        KParseTokens::TWO_DOUBLE_QUOTES_BREAK_STRING;
+
+    // First character for numbers, may be any numeric or dot
+    static const sal_Int32 coNumStartFlags =
+        KParseTokens::ASC_DIGIT |
+        KParseTokens::ASC_DOT |
+        KParseTokens::IGNORE_LEADING_WS;
+
+    // Continuing characters for numbers, may be any numeric or dot.
+    // tdf#127873: additionally accept ',' comma group separator as too many
+    // existing documents unwittingly may have used that as decimal separator
+    // in such locales (though it never was as this is always the en-US locale
+    // and the group separator is only parsed away).
+    static const sal_Int32 coNumContFlags =
+        (coNumStartFlags & ~KParseTokens::IGNORE_LEADING_WS) |
+        KParseTokens::GROUP_SEPARATOR_IN_NUMBER;
+
+    sal_Int32   nBufLen = m_aBufferString.getLength();
+    ParseResult aRes;
+    sal_Int32   nRealStart;
+    bool        bCont;
+    do
+    {
+        // skip white spaces
+        while (UnicodeType::SPACE_SEPARATOR ==
+                        m_pSysCC->getType( m_aBufferString, m_nBufferIndex ))
+           ++m_nBufferIndex;
+
+        // Try to parse a number in a locale-independent manner using
+        // '.' as decimal separator.
+        // See https://bz.apache.org/ooo/show_bug.cgi?id=45779
+        aRes = m_aNumCC.parsePredefinedToken(KParseType::ASC_NUMBER,
+                                        m_aBufferString, m_nBufferIndex,
+                                        coNumStartFlags, "",
+                                        coNumContFlags, "");
+
+        if (aRes.TokenType == 0)
+        {
+            // Try again with the default token parsing.
+            aRes = m_pSysCC->parseAnyToken(m_aBufferString, m_nBufferIndex,
+                                     coStartFlags, "",
+                                     coContFlags, "");
+        }
+
+        nRealStart = m_nBufferIndex + aRes.LeadingWhiteSpace;
+        m_nBufferIndex = nRealStart;
+
+        bCont = false;
+        if ( aRes.TokenType == 0  &&
+                nRealStart < nBufLen &&
+                '\n' == m_aBufferString[ nRealStart ] )
+        {
+            // keep data needed for tokens row and col entry up to date
+            ++m_nRow;
+            m_nBufferIndex = m_nColOff = nRealStart + 1;
+            bCont = true;
+        }
+        else if (aRes.TokenType & KParseType::ONE_SINGLE_CHAR)
+        {
+            if (nRealStart + 2 <= nBufLen && m_aBufferString.match("%%", nRealStart))
+            {
+                //SkipComment
+                m_nBufferIndex = nRealStart + 2;
+                while (m_nBufferIndex < nBufLen  &&
+                    '\n' != m_aBufferString[ m_nBufferIndex ])
+                    ++m_nBufferIndex;
+                bCont = true;
+            }
+        }
+
+    } while (bCont);
+
+    // set index of current token
+    m_nTokenIndex = m_nBufferIndex;
+
+    m_aCurToken.nRow   = m_nRow;
+    m_aCurToken.nCol   = nRealStart - m_nColOff + 1;
+
+    bool bHandled = true;
+    if (nRealStart >= nBufLen)
+    {
+        m_aCurToken.eType    = TEND;
+        m_aCurToken.cMathChar = '\0';
+        m_aCurToken.nGroup       = TG::NONE;
+        m_aCurToken.nLevel       = 0;
+        m_aCurToken.aText.clear();
+    }
+    else if (aRes.TokenType & KParseType::ANY_NUMBER)
+    {
+        assert(aRes.EndPos > 0);
+        if ( m_aBufferString[aRes.EndPos-1] == ',' &&
+             aRes.EndPos < nBufLen &&
+             m_pSysCC->getType( m_aBufferString, aRes.EndPos ) != UnicodeType::SPACE_SEPARATOR )
+        {
+            // Comma followed by a non-space char is unlikely for decimal/thousands separator.
+            --aRes.EndPos;
+        }
+        sal_Int32 n = aRes.EndPos - nRealStart;
+        assert(n >= 0);
+        m_aCurToken.eType      = TNUMBER;
+        m_aCurToken.cMathChar  = '\0';
+        m_aCurToken.nGroup     = TG::NONE;
+        m_aCurToken.nLevel     = 5;
+        m_aCurToken.aText      = m_aBufferString.copy( nRealStart, n );
+
+        SAL_WARN_IF( !IsDelimiter( m_aBufferString, aRes.EndPos ), "starmath", "identifier really finished? (compatibility!)" );
+    }
+    else if (aRes.TokenType & KParseType::DOUBLE_QUOTE_STRING)
+    {
+        m_aCurToken.eType      = TTEXT;
+        m_aCurToken.cMathChar  = '\0';
+        m_aCurToken.nGroup     = TG::NONE;
+        m_aCurToken.nLevel     = 5;
+        m_aCurToken.aText     = aRes.DequotedNameOrString;
+        m_aCurToken.nRow       = m_nRow;
+        m_aCurToken.nCol       = nRealStart - m_nColOff + 2;
+    }
+    else if (aRes.TokenType & KParseType::IDENTNAME)
+    {
+        sal_Int32 n = aRes.EndPos - nRealStart;
+        assert(n >= 0);
+        OUString aName( m_aBufferString.copy( nRealStart, n ) );
+        const SmTokenTableEntry *pEntry = GetTokenTableEntry( aName );
+
+        if (pEntry)
+        {
+            m_aCurToken.eType      = pEntry->eType;
+            m_aCurToken.cMathChar  = pEntry->cMathChar;
+            m_aCurToken.nGroup     = pEntry->nGroup;
+            m_aCurToken.nLevel     = pEntry->nLevel;
+            m_aCurToken.aText      = OUString::createFromAscii( pEntry->pIdent );
+        }
+        else
+        {
+            m_aCurToken.eType      = TIDENT;
+            m_aCurToken.cMathChar  = '\0';
+            m_aCurToken.nGroup     = TG::NONE;
+            m_aCurToken.nLevel     = 5;
+            m_aCurToken.aText      = aName;
+
+            SAL_WARN_IF(!IsDelimiter(m_aBufferString, aRes.EndPos),"starmath", "identifier really finished? (compatibility!)");
+        }
+    }
+    else if (aRes.TokenType == 0  &&  '_' == m_aBufferString[ nRealStart ])
+    {
+        m_aCurToken.eType    = TRSUB;
+        m_aCurToken.cMathChar = '\0';
+        m_aCurToken.nGroup       = TG::Power;
+        m_aCurToken.nLevel       = 0;
+        m_aCurToken.aText = "_";
+
+        aRes.EndPos = nRealStart + 1;
+    }
+    else if (aRes.TokenType & KParseType::BOOLEAN)
+    {
+        sal_Int32   &rnEndPos = aRes.EndPos;
+        if (rnEndPos - nRealStart <= 2)
+        {
+            sal_Unicode ch = m_aBufferString[ nRealStart ];
+            switch (ch)
+            {
+                case '<':
+                    {
+                        if (m_aBufferString.match("<<", nRealStart))
+                        {
+                            m_aCurToken.eType    = TLL;
+                            m_aCurToken.cMathChar = MS_LL;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = "<<";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else if (m_aBufferString.match("<=", nRealStart))
+                        {
+                            m_aCurToken.eType    = TLE;
+                            m_aCurToken.cMathChar = MS_LE;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = "<=";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else if (m_aBufferString.match("<-", nRealStart))
+                        {
+                            m_aCurToken.eType    = TLEFTARROW;
+                            m_aCurToken.cMathChar = MS_LEFTARROW;
+                            m_aCurToken.nGroup       = TG::Standalone;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "<-";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else if (m_aBufferString.match("<>", nRealStart))
+                        {
+                            m_aCurToken.eType    = TNEQ;
+                            m_aCurToken.cMathChar = MS_NEQ;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = "<>";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else if (m_aBufferString.match("<?>", nRealStart))
+                        {
+                            m_aCurToken.eType    = TPLACE;
+                            m_aCurToken.cMathChar = MS_PLACE;
+                            m_aCurToken.nGroup       = TG::NONE;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "<?>";
+
+                            rnEndPos = nRealStart + 3;
+                        }
+                        else
+                        {
+                            m_aCurToken.eType    = TLT;
+                            m_aCurToken.cMathChar = MS_LT;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = "<";
+                        }
+                    }
+                    break;
+                case '>':
+                    {
+                        if (m_aBufferString.match(">=", nRealStart))
+                        {
+                            m_aCurToken.eType    = TGE;
+                            m_aCurToken.cMathChar = MS_GE;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = ">=";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else if (m_aBufferString.match(">>", nRealStart))
+                        {
+                            m_aCurToken.eType    = TGG;
+                            m_aCurToken.cMathChar = MS_GG;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = ">>";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else
+                        {
+                            m_aCurToken.eType    = TGT;
+                            m_aCurToken.cMathChar = MS_GT;
+                            m_aCurToken.nGroup       = TG::Relation;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = ">";
+                        }
+                    }
+                    break;
+                default:
+                    bHandled = false;
+            }
+        }
+    }
+    else if (aRes.TokenType & KParseType::ONE_SINGLE_CHAR)
+    {
+        sal_Int32   &rnEndPos = aRes.EndPos;
+        if (rnEndPos - nRealStart == 1)
+        {
+            sal_Unicode ch = m_aBufferString[ nRealStart ];
+            switch (ch)
+            {
+                case '%':
+                    {
+                        //! modifies aRes.EndPos
+
+                        OSL_ENSURE( rnEndPos >= nBufLen  ||
+                                    '%' != m_aBufferString[ rnEndPos ],
+                                "unexpected comment start" );
+
+                        // get identifier of user-defined character
+                        ParseResult aTmpRes = m_pSysCC->parseAnyToken(
+                                m_aBufferString, rnEndPos,
+                                KParseTokens::ANY_LETTER,
+                                "",
+                                coUserDefinedCharContFlags,
+                                "" );
+
+                        sal_Int32 nTmpStart = rnEndPos + aTmpRes.LeadingWhiteSpace;
+
+                        // default setting for the case that no identifier
+                        // i.e. a valid symbol-name is following the '%'
+                        // character
+                        m_aCurToken.eType      = TTEXT;
+                        m_aCurToken.cMathChar  = '\0';
+                        m_aCurToken.nGroup     = TG::NONE;
+                        m_aCurToken.nLevel     = 5;
+                        m_aCurToken.aText      ="%";
+                        m_aCurToken.nRow       = m_nRow;
+                        m_aCurToken.nCol       = nTmpStart - m_nColOff;
+
+                        if (aTmpRes.TokenType & KParseType::IDENTNAME)
+                        {
+
+                            sal_Int32 n = aTmpRes.EndPos - nTmpStart;
+                            m_aCurToken.eType      = TSPECIAL;
+                            m_aCurToken.aText      = m_aBufferString.copy( nTmpStart-1, n+1 );
+
+                            OSL_ENSURE( aTmpRes.EndPos > rnEndPos,
+                                    "empty identifier" );
+                            if (aTmpRes.EndPos > rnEndPos)
+                                rnEndPos = aTmpRes.EndPos;
+                            else
+                                ++rnEndPos;
+                        }
+
+                        // if no symbol-name was found we start-over with
+                        // finding the next token right after the '%' sign.
+                        // I.e. we leave rnEndPos unmodified.
+                    }
+                    break;
+                case '[':
+                    {
+                        m_aCurToken.eType    = TLBRACKET;
+                        m_aCurToken.cMathChar = MS_LBRACKET;
+                        m_aCurToken.nGroup       = TG::LBrace;
+                        m_aCurToken.nLevel       = 5;
+                        m_aCurToken.aText = "[";
+                    }
+                    break;
+                case '\\':
+                    {
+                        m_aCurToken.eType    = TESCAPE;
+                        m_aCurToken.cMathChar = '\0';
+                        m_aCurToken.nGroup       = TG::NONE;
+                        m_aCurToken.nLevel       = 5;
+                        m_aCurToken.aText = "\\";
+                    }
+                    break;
+                case ']':
+                    {
+                        m_aCurToken.eType    = TRBRACKET;
+                        m_aCurToken.cMathChar = MS_RBRACKET;
+                        m_aCurToken.nGroup       = TG::RBrace;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "]";
+                    }
+                    break;
+                case '^':
+                    {
+                        m_aCurToken.eType    = TRSUP;
+                        m_aCurToken.cMathChar = '\0';
+                        m_aCurToken.nGroup       = TG::Power;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "^";
+                    }
+                    break;
+                case '`':
+                    {
+                        m_aCurToken.eType    = TSBLANK;
+                        m_aCurToken.cMathChar = '\0';
+                        m_aCurToken.nGroup       = TG::Blank;
+                        m_aCurToken.nLevel       = 5;
+                        m_aCurToken.aText = "`";
+                    }
+                    break;
+                case '{':
+                    {
+                        m_aCurToken.eType    = TLGROUP;
+                        m_aCurToken.cMathChar = MS_LBRACE;
+                        m_aCurToken.nGroup       = TG::NONE;
+                        m_aCurToken.nLevel       = 5;
+                        m_aCurToken.aText = "{";
+                    }
+                    break;
+                case '|':
+                    {
+                        m_aCurToken.eType    = TOR;
+                        m_aCurToken.cMathChar = MS_OR;
+                        m_aCurToken.nGroup       = TG::Sum;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "|";
+                    }
+                    break;
+                case '}':
+                    {
+                        m_aCurToken.eType    = TRGROUP;
+                        m_aCurToken.cMathChar = MS_RBRACE;
+                        m_aCurToken.nGroup       = TG::NONE;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "}";
+                    }
+                    break;
+                case '~':
+                    {
+                        m_aCurToken.eType    = TBLANK;
+                        m_aCurToken.cMathChar = '\0';
+                        m_aCurToken.nGroup       = TG::Blank;
+                        m_aCurToken.nLevel       = 5;
+                        m_aCurToken.aText = "~";
+                    }
+                    break;
+                case '#':
+                    {
+                        if (m_aBufferString.match("##", nRealStart))
+                        {
+                            m_aCurToken.eType    = TDPOUND;
+                            m_aCurToken.cMathChar = '\0';
+                            m_aCurToken.nGroup       = TG::NONE;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = "##";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else
+                        {
+                            m_aCurToken.eType    = TPOUND;
+                            m_aCurToken.cMathChar = '\0';
+                            m_aCurToken.nGroup       = TG::NONE;
+                            m_aCurToken.nLevel       = 0;
+                            m_aCurToken.aText = "#";
+                        }
+                    }
+                    break;
+                case '&':
+                    {
+                        m_aCurToken.eType    = TAND;
+                        m_aCurToken.cMathChar = MS_AND;
+                        m_aCurToken.nGroup       = TG::Product;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "&";
+                    }
+                    break;
+                case '(':
+                    {
+                        m_aCurToken.eType    = TLPARENT;
+                        m_aCurToken.cMathChar = MS_LPARENT;
+                        m_aCurToken.nGroup       = TG::LBrace;
+                        m_aCurToken.nLevel       = 5;     //! 0 to continue expression
+                        m_aCurToken.aText = "(";
+                    }
+                    break;
+                case ')':
+                    {
+                        m_aCurToken.eType    = TRPARENT;
+                        m_aCurToken.cMathChar = MS_RPARENT;
+                        m_aCurToken.nGroup       = TG::RBrace;
+                        m_aCurToken.nLevel       = 0;     //! 0 to terminate expression
+                        m_aCurToken.aText = ")";
+                    }
+                    break;
+                case '*':
+                    {
+                        m_aCurToken.eType    = TMULTIPLY;
+                        m_aCurToken.cMathChar = MS_MULTIPLY;
+                        m_aCurToken.nGroup       = TG::Product;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "*";
+                    }
+                    break;
+                case '+':
+                    {
+                        if (m_aBufferString.match("+-", nRealStart))
+                        {
+                            m_aCurToken.eType    = TPLUSMINUS;
+                            m_aCurToken.cMathChar = MS_PLUSMINUS;
+                            m_aCurToken.nGroup       = TG::UnOper | TG::Sum;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "+-";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else
+                        {
+                            m_aCurToken.eType    = TPLUS;
+                            m_aCurToken.cMathChar = MS_PLUS;
+                            m_aCurToken.nGroup       = TG::UnOper | TG::Sum;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "+";
+                        }
+                    }
+                    break;
+                case '-':
+                    {
+                        if (m_aBufferString.match("-+", nRealStart))
+                        {
+                            m_aCurToken.eType    = TMINUSPLUS;
+                            m_aCurToken.cMathChar = MS_MINUSPLUS;
+                            m_aCurToken.nGroup       = TG::UnOper | TG::Sum;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "-+";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else if (m_aBufferString.match("->", nRealStart))
+                        {
+                            m_aCurToken.eType    = TRIGHTARROW;
+                            m_aCurToken.cMathChar = MS_RIGHTARROW;
+                            m_aCurToken.nGroup       = TG::Standalone;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "->";
+
+                            rnEndPos = nRealStart + 2;
+                        }
+                        else
+                        {
+                            m_aCurToken.eType    = TMINUS;
+                            m_aCurToken.cMathChar = MS_MINUS;
+                            m_aCurToken.nGroup       = TG::UnOper | TG::Sum;
+                            m_aCurToken.nLevel       = 5;
+                            m_aCurToken.aText = "-";
+                        }
+                    }
+                    break;
+                case '.':
+                    {
+                        // Only one character? Then it can't be a number.
+                        if (m_nBufferIndex < m_aBufferString.getLength() - 1)
+                        {
+                            // for compatibility with SO5.2
+                            // texts like .34 ...56 ... h ...78..90
+                            // will be treated as numbers
+                            m_aCurToken.eType     = TNUMBER;
+                            m_aCurToken.cMathChar = '\0';
+                            m_aCurToken.nGroup    = TG::NONE;
+                            m_aCurToken.nLevel    = 5;
+
+                            sal_Int32 nTxtStart = m_nBufferIndex;
+                            sal_Unicode cChar;
+                            // if the equation ends with dot(.) then increment m_nBufferIndex till end of string only
+                            do
+                            {
+                                cChar = m_aBufferString[ ++m_nBufferIndex ];
+                            }
+                            while ( (cChar == '.' || rtl::isAsciiDigit( cChar )) &&
+                                     ( m_nBufferIndex < m_aBufferString.getLength() - 1 ) );
+
+                            m_aCurToken.aText = m_aBufferString.copy( nTxtStart, m_nBufferIndex - nTxtStart );
+                            aRes.EndPos = m_nBufferIndex;
+                        }
+                        else
+                            bHandled = false;
+                    }
+                    break;
+                case '/':
+                    {
+                        m_aCurToken.eType    = TDIVIDEBY;
+                        m_aCurToken.cMathChar = MS_SLASH;
+                        m_aCurToken.nGroup       = TG::Product;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "/";
+                    }
+                    break;
+                case '=':
+                    {
+                        m_aCurToken.eType    = TASSIGN;
+                        m_aCurToken.cMathChar = MS_ASSIGN;
+                        m_aCurToken.nGroup       = TG::Relation;
+                        m_aCurToken.nLevel       = 0;
+                        m_aCurToken.aText = "=";
+                    }
+                    break;
+                default:
+                    bHandled = false;
+            }
+        }
+    }
+    else
+        bHandled = false;
+
+    if (!bHandled)
+    {
+        m_aCurToken.eType      = TCHARACTER;
+        m_aCurToken.cMathChar  = '\0';
+        m_aCurToken.nGroup     = TG::NONE;
+        m_aCurToken.nLevel     = 5;
+
+        // tdf#129372: we may have to deal with surrogate pairs
+        // (see https://en.wikipedia.org/wiki/Universal_Character_Set_characters#Surrogates)
+        // in this case, we must read 2 sal_Unicode instead of 1
+        int nOffset(rtl::isSurrogate(m_aBufferString[nRealStart])? 2 : 1);
+        m_aCurToken.aText      = m_aBufferString.copy( nRealStart, nOffset );
+
+        aRes.EndPos = nRealStart + nOffset;
+    }
+
+    if (TEND != m_aCurToken.eType)
+        m_nBufferIndex = aRes.EndPos;
+}
+
+namespace
+{
+    SmNodeArray buildNodeArray(std::vector<std::unique_ptr<SmNode>>& rSubNodes)
+    {
+        SmNodeArray aSubArray(rSubNodes.size());
+        for (size_t i = 0; i < rSubNodes.size(); ++i)
+            aSubArray[i] = rSubNodes[i].release();
+        return aSubArray;
+    }
+} //end namespace
+
+// grammar
+
+std::unique_ptr<SmTableNode> SmParser::DoTable()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    std::vector<std::unique_ptr<SmNode>> aLineArray;
+    aLineArray.push_back(DoLine());
+    while (m_aCurToken.eType == TNEWLINE)
+    {
+        NextToken();
+        aLineArray.push_back(DoLine());
+    }
+    assert(m_aCurToken.eType == TEND);
+    std::unique_ptr<SmTableNode> xSNode(new SmTableNode(m_aCurToken));
+    xSNode->SetSubNodes(buildNodeArray(aLineArray));
+    return xSNode;
+}
+
+std::unique_ptr<SmNode> SmParser::DoAlign(bool bUseExtraSpaces)
+    // parse alignment info (if any), then go on with rest of expression
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    std::unique_ptr<SmStructureNode> xSNode;
+
+    if (TokenInGroup(TG::Align))
+    {
+        xSNode.reset(new SmAlignNode(m_aCurToken));
+
+        NextToken();
+
+        // allow for just one align statement in 5.0
+        if (TokenInGroup(TG::Align))
+            return DoError(SmParseError::DoubleAlign);
+    }
+
+    auto pNode = DoExpression(bUseExtraSpaces);
+
+    if (xSNode)
+    {
+        xSNode->SetSubNode(0, pNode.release());
+        return xSNode;
+    }
+    return pNode;
+}
+
+// Postcondition: m_aCurToken.eType == TEND || m_aCurToken.eType == TNEWLINE
+std::unique_ptr<SmNode> SmParser::DoLine()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    std::vector<std::unique_ptr<SmNode>> ExpressionArray;
+
+    // start with single expression that may have an alignment statement
+    // (and go on with expressions that must not have alignment
+    // statements in 'while' loop below. See also 'Expression()'.)
+    if (m_aCurToken.eType != TEND  &&  m_aCurToken.eType != TNEWLINE)
+        ExpressionArray.push_back(DoAlign());
+
+    while (m_aCurToken.eType != TEND  &&  m_aCurToken.eType != TNEWLINE)
+        ExpressionArray.push_back(DoExpression());
+
+    //If there's no expression, add an empty one.
+    //this is to avoid a formula tree without any caret
+    //positions, in visual formula editor.
+    if(ExpressionArray.empty())
+    {
+        SmToken aTok;
+        aTok.eType = TNEWLINE;
+        ExpressionArray.emplace_back(std::unique_ptr<SmNode>(new SmExpressionNode(aTok)));
+    }
+
+    auto xSNode = std::make_unique<SmLineNode>(m_aCurToken);
+    xSNode->SetSubNodes(buildNodeArray(ExpressionArray));
+    return xSNode;
+}
+
+std::unique_ptr<SmNode> SmParser::DoExpression(bool bUseExtraSpaces)
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    std::vector<std::unique_ptr<SmNode>> RelationArray;
+    RelationArray.push_back(DoRelation());
+    while (m_aCurToken.nLevel >= 4)
+        RelationArray.push_back(DoRelation());
+
+    if (RelationArray.size() > 1)
+    {
+        std::unique_ptr<SmExpressionNode> xSNode(new SmExpressionNode(m_aCurToken));
+        xSNode->SetSubNodes(buildNodeArray(RelationArray));
+        xSNode->SetUseExtraSpaces(bUseExtraSpaces);
+        return xSNode;
+    }
+    else
+    {
+        // This expression has only one node so just push this node.
+        return std::move(RelationArray[0]);
+    }
+}
+
+std::unique_ptr<SmNode> SmParser::DoRelation()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto xFirst = DoSum();
+    while (TokenInGroup(TG::Relation))
+    {
+        std::unique_ptr<SmStructureNode> xSNode(new SmBinHorNode(m_aCurToken));
+        auto xSecond = DoOpSubSup();
+        auto xThird = DoSum();
+        xSNode->SetSubNodes(std::move(xFirst), std::move(xSecond), std::move(xThird));
+        xFirst = std::move(xSNode);
+    }
+    return xFirst;
+}
+
+std::unique_ptr<SmNode> SmParser::DoSum()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto xFirst = DoProduct();
+    while (TokenInGroup(TG::Sum))
+    {
+        std::unique_ptr<SmStructureNode> xSNode(new SmBinHorNode(m_aCurToken));
+        auto xSecond = DoOpSubSup();
+        auto xThird = DoProduct();
+        xSNode->SetSubNodes(std::move(xFirst), std::move(xSecond), std::move(xThird));
+        xFirst = std::move(xSNode);
+    }
+    return xFirst;
+}
+
+std::unique_ptr<SmNode> SmParser::DoProduct()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto xFirst = DoPower();
+
+    int nDepthLimit = 0;
+
+    while (TokenInGroup(TG::Product))
+    {
+        //this linear loop builds a recursive structure, if it gets
+        //too deep then later processing, e.g. releasing the tree,
+        //can exhaust stack
+        if (nDepthLimit > DEPTH_LIMIT)
+            throw std::range_error("parser depth limit");
+
+        std::unique_ptr<SmStructureNode> xSNode;
+        std::unique_ptr<SmNode> xOper;
+        bool bSwitchArgs = false;
+
+        SmTokenType eType = m_aCurToken.eType;
+        switch (eType)
+        {
+            case TOVER:
+                xSNode.reset(new SmBinVerNode(m_aCurToken));
+                xOper.reset(new SmRectangleNode(m_aCurToken));
+                NextToken();
+                break;
+
+            case TBOPER:
+                xSNode.reset(new SmBinHorNode(m_aCurToken));
+
+                NextToken();
+
+                //Let the glyph node know it's a binary operation
+                m_aCurToken.eType = TBOPER;
+                m_aCurToken.nGroup = TG::Product;
+                xOper = DoGlyphSpecial();
+                break;
+
+            case TOVERBRACE :
+            case TUNDERBRACE :
+                xSNode.reset(new SmVerticalBraceNode(m_aCurToken));
+                xOper.reset(new SmMathSymbolNode(m_aCurToken));
+
+                NextToken();
+                break;
+
+            case TWIDEBACKSLASH:
+            case TWIDESLASH:
+            {
+                SmBinDiagonalNode *pSTmp = new SmBinDiagonalNode(m_aCurToken);
+                pSTmp->SetAscending(eType == TWIDESLASH);
+                xSNode.reset(pSTmp);
+
+                xOper.reset(new SmPolyLineNode(m_aCurToken));
+                NextToken();
+
+                bSwitchArgs = true;
+                break;
+            }
+
+            default:
+                xSNode.reset(new SmBinHorNode(m_aCurToken));
+
+                xOper = DoOpSubSup();
+        }
+
+        auto xArg = DoPower();
+
+        if (bSwitchArgs)
+        {
+            //! vgl siehe SmBinDiagonalNode::Arrange
+            xSNode->SetSubNodes(std::move(xFirst), std::move(xArg), std::move(xOper));
+        }
+        else
+        {
+            xSNode->SetSubNodes(std::move(xFirst), std::move(xOper), std::move(xArg));
+        }
+        xFirst = std::move(xSNode);
+        ++nDepthLimit;
+    }
+    return xFirst;
+}
+
+std::unique_ptr<SmNode> SmParser::DoSubSup(TG nActiveGroup, SmNode *pGivenNode)
+{
+    std::unique_ptr<SmNode> xGivenNode(pGivenNode);
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(nActiveGroup == TG::Power || nActiveGroup == TG::Limit);
+    assert(m_aCurToken.nGroup == nActiveGroup);
+
+    std::unique_ptr<SmSubSupNode> pNode(new SmSubSupNode(m_aCurToken));
+    //! Of course 'm_aCurToken' is just the first sub-/supscript token.
+    //! It should be of no further interest. The positions of the
+    //! sub-/supscripts will be identified by the corresponding subnodes
+    //! index in the 'aSubNodes' array (enum value from 'SmSubSup').
+
+    pNode->SetUseLimits(nActiveGroup == TG::Limit);
+
+    // initialize subnodes array
+    std::vector<std::unique_ptr<SmNode>> aSubNodes(1 + SUBSUP_NUM_ENTRIES);
+    aSubNodes[0] = std::move(xGivenNode);
+
+    // process all sub-/supscripts
+    int  nIndex = 0;
+    while (TokenInGroup(nActiveGroup))
+    {
+        SmTokenType  eType (m_aCurToken.eType);
+
+        switch (eType)
+        {
+            case TRSUB :    nIndex = static_cast<int>(RSUB);    break;
+            case TRSUP :    nIndex = static_cast<int>(RSUP);    break;
+            case TFROM :
+            case TCSUB :    nIndex = static_cast<int>(CSUB);    break;
+            case TTO :
+            case TCSUP :    nIndex = static_cast<int>(CSUP);    break;
+            case TLSUB :    nIndex = static_cast<int>(LSUB);    break;
+            case TLSUP :    nIndex = static_cast<int>(LSUP);    break;
+            default :
+                SAL_WARN( "starmath", "unknown case");
+        }
+        nIndex++;
+        assert(1 <= nIndex  &&  nIndex <= SUBSUP_NUM_ENTRIES);
+
+        std::unique_ptr<SmNode> xENode;
+        if (aSubNodes[nIndex]) // if already occupied at earlier iteration
+        {
+            // forget the earlier one, remember an error instead
+            aSubNodes[nIndex].reset();
+            xENode = DoError(SmParseError::DoubleSubsupscript); // this also skips current token.
+        }
+        else
+        {
+            // skip sub-/supscript token
+            NextToken();
+        }
+
+        // get sub-/supscript node
+        // (even when we saw a double-sub/supscript error in the above
+        // in order to minimize mess and continue parsing.)
+        std::unique_ptr<SmNode> xSNode;
+        if (eType == TFROM  ||  eType == TTO)
+        {
+            // parse limits in old 4.0 and 5.0 style
+            xSNode = DoRelation();
+        }
+        else
+            xSNode = DoTerm(true);
+
+        aSubNodes[nIndex] = std::move(xENode ? xENode : xSNode);
+    }
+
+    pNode->SetSubNodes(buildNodeArray(aSubNodes));
+    return pNode;
+}
+
+std::unique_ptr<SmNode> SmParser::DoOpSubSup()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    // get operator symbol
+    auto pNode = std::make_unique<SmMathSymbolNode>(m_aCurToken);
+    // skip operator token
+    NextToken();
+    // get sub- supscripts if any
+    if (m_aCurToken.nGroup == TG::Power)
+        return DoSubSup(TG::Power, pNode.release());
+    return pNode;
+}
+
+std::unique_ptr<SmNode> SmParser::DoPower()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    // get body for sub- supscripts on top of stack
+    std::unique_ptr<SmNode> xNode(DoTerm(false));
+
+    if (m_aCurToken.nGroup == TG::Power)
+        return DoSubSup(TG::Power, xNode.release());
+    return xNode;
+}
+
+std::unique_ptr<SmBlankNode> SmParser::DoBlank()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(TokenInGroup(TG::Blank));
+    std::unique_ptr<SmBlankNode> pBlankNode(new SmBlankNode(m_aCurToken));
+
+    do
+    {
+        pBlankNode->IncreaseBy(m_aCurToken);
+        NextToken();
+    }
+    while (TokenInGroup(TG::Blank));
+
+    // Ignore trailing spaces, if corresponding option is set
+    if ( m_aCurToken.eType == TNEWLINE ||
+             (m_aCurToken.eType == TEND && !utl::ConfigManager::IsFuzzing() && SM_MOD()->GetConfig()->IsIgnoreSpacesRight()) )
+    {
+        pBlankNode->Clear();
+    }
+    return pBlankNode;
+}
+
+std::unique_ptr<SmNode> SmParser::DoTerm(bool bGroupNumberIdent)
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    switch (m_aCurToken.eType)
+    {
+        case TESCAPE :
+            return DoEscape();
+
+        case TNOSPACE :
+        case TLGROUP :
+        {
+            bool bNoSpace = m_aCurToken.eType == TNOSPACE;
+            if (bNoSpace)
+                NextToken();
+            if (m_aCurToken.eType != TLGROUP)
+                return DoTerm(false); // nospace is no longer concerned
+
+            NextToken();
+
+            // allow for empty group
+            if (m_aCurToken.eType == TRGROUP)
+            {
+                std::unique_ptr<SmStructureNode> xSNode(new SmExpressionNode(m_aCurToken));
+                xSNode->SetSubNodes(nullptr, nullptr);
+
+                NextToken();
+                return std::unique_ptr<SmNode>(xSNode.release());
+            }
+
+            auto pNode = DoAlign(!bNoSpace);
+            if (m_aCurToken.eType == TRGROUP) {
+                NextToken();
+                return pNode;
+            }
+            auto xSNode = std::make_unique<SmExpressionNode>(m_aCurToken);
+            std::unique_ptr<SmNode> xError(DoError(SmParseError::RgroupExpected));
+            xSNode->SetSubNodes(std::move(pNode), std::move(xError));
+            return std::unique_ptr<SmNode>(xSNode.release());
+        }
+
+        case TLEFT :
+            return DoBrace();
+
+        case TBLANK :
+        case TSBLANK :
+            return DoBlank();
+
+        case TTEXT :
+            {
+                auto pNode = std::make_unique<SmTextNode>(m_aCurToken, FNT_TEXT);
+                NextToken();
+                return std::unique_ptr<SmNode>(pNode.release());
+            }
+        case TCHARACTER :
+            {
+                auto pNode = std::make_unique<SmTextNode>(m_aCurToken, FNT_VARIABLE);
+                NextToken();
+                return std::unique_ptr<SmNode>(pNode.release());
+            }
+        case TIDENT :
+        case TNUMBER :
+        {
+            auto pTextNode = std::make_unique<SmTextNode>(m_aCurToken,
+                                             m_aCurToken.eType == TNUMBER ?
+                                             FNT_NUMBER :
+                                             FNT_VARIABLE);
+            if (!bGroupNumberIdent)
+            {
+                NextToken();
+                return std::unique_ptr<SmNode>(pTextNode.release());
+            }
+            std::vector<std::unique_ptr<SmNode>> aNodes;
+            // Some people want to be able to write "x_2n" for "x_{2n}"
+            // although e.g. LaTeX or AsciiMath interpret that as "x_2 n".
+            // The tokenizer skips whitespaces so we need some additional
+            // work to distinguish from "x_2 n".
+            // See https://bz.apache.org/ooo/show_bug.cgi?id=11752 and
+            // https://bugs.libreoffice.org/show_bug.cgi?id=55853
+            sal_Int32 nBufLen = m_aBufferString.getLength();
+
+            // We need to be careful to call NextToken() only after having
+            // tested for a whitespace separator (otherwise it will be
+            // skipped!)
+            bool moveToNextToken = true;
+            while (m_nBufferIndex < nBufLen &&
+                   m_pSysCC->getType(m_aBufferString, m_nBufferIndex) !=
+                   UnicodeType::SPACE_SEPARATOR)
+            {
+                NextToken();
+                if (m_aCurToken.eType != TNUMBER &&
+                    m_aCurToken.eType != TIDENT)
+                {
+                    // Neither a number nor an identifier. We just moved to
+                    // the next token, so no need to do that again.
+                    moveToNextToken = false;
+                    break;
+                }
+                aNodes.emplace_back(std::unique_ptr<SmNode>(new SmTextNode(m_aCurToken,
+                                                m_aCurToken.eType ==
+                                                TNUMBER ?
+                                                FNT_NUMBER :
+                                                FNT_VARIABLE)));
+            }
+            if (moveToNextToken)
+                NextToken();
+            if (aNodes.empty())
+                return std::unique_ptr<SmNode>(pTextNode.release());
+            // We have several concatenated identifiers and numbers.
+            // Let's group them into one SmExpressionNode.
+            aNodes.insert(aNodes.begin(), std::move(pTextNode));
+            std::unique_ptr<SmExpressionNode> xNode(new SmExpressionNode(SmToken()));
+            xNode->SetSubNodes(buildNodeArray(aNodes));
+            return std::unique_ptr<SmNode>(xNode.release());
+        }
+        case TLEFTARROW :
+        case TRIGHTARROW :
+        case TUPARROW :
+        case TDOWNARROW :
+        case TCIRC :
+        case TDRARROW :
+        case TDLARROW :
+        case TDLRARROW :
+        case TEXISTS :
+        case TNOTEXISTS :
+        case TFORALL :
+        case TPARTIAL :
+        case TNABLA :
+        case TLAPLACE :
+        case TTOWARD :
+        case TDOTSAXIS :
+        case TDOTSDIAG :
+        case TDOTSDOWN :
+        case TDOTSLOW :
+        case TDOTSUP :
+        case TDOTSVERT :
+            {
+                auto pNode = std::make_unique<SmMathSymbolNode>(m_aCurToken);
+                NextToken();
+                return std::unique_ptr<SmNode>(pNode.release());
+            }
+
+        case TSETN :
+        case TSETZ :
+        case TSETQ :
+        case TSETR :
+        case TSETC :
+        case THBAR :
+        case TLAMBDABAR :
+        case TBACKEPSILON :
+        case TALEPH :
+        case TIM :
+        case TRE :
+        case TWP :
+        case TEMPTYSET :
+        case TINFINITY :
+            {
+                auto pNode = std::make_unique<SmMathIdentifierNode>(m_aCurToken);
+                NextToken();
+                return std::unique_ptr<SmNode>(pNode.release());
+            }
+
+        case TPLACE:
+            {
+                auto pNode = std::make_unique<SmPlaceNode>(m_aCurToken);
+                NextToken();
+                return std::unique_ptr<SmNode>(pNode.release());
+            }
+
+        case TSPECIAL:
+            return DoSpecial();
+
+        case TBINOM:
+            return DoBinom();
+
+        case TSTACK:
+            return DoStack();
+
+        case TMATRIX:
+            return DoMatrix();
+
+        default:
+            if (TokenInGroup(TG::LBrace))
+                return DoBrace();
+            if (TokenInGroup(TG::Oper))
+                return DoOperator();
+            if (TokenInGroup(TG::UnOper))
+                return DoUnOper();
+            if ( TokenInGroup(TG::Attribute) ||
+                 TokenInGroup(TG::FontAttr) )
+            {
+                std::stack<std::unique_ptr<SmStructureNode>> aStack;
+                bool    bIsAttr;
+                for (;;)
+                {
+                    bIsAttr = TokenInGroup(TG::Attribute);
+                    if (!bIsAttr && !TokenInGroup(TG::FontAttr))
+                        break;
+                    aStack.push(bIsAttr ? DoAttribut() : DoFontAttribut());
+                }
+
+                auto xFirstNode = DoPower();
+                while (!aStack.empty())
+                {
+                    std::unique_ptr<SmStructureNode> xNode = std::move(aStack.top());
+                    aStack.pop();
+                    xNode->SetSubNodes(nullptr, std::move(xFirstNode));
+                    xFirstNode = std::move(xNode);
+                }
+                return xFirstNode;
+            }
+            if (TokenInGroup(TG::Function))
+                return DoFunction();
+            return DoError(SmParseError::UnexpectedChar);
+    }
+}
+
+std::unique_ptr<SmNode> SmParser::DoEscape()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    NextToken();
+
+    switch (m_aCurToken.eType)
+    {
+        case TLPARENT :
+        case TRPARENT :
+        case TLBRACKET :
+        case TRBRACKET :
+        case TLDBRACKET :
+        case TRDBRACKET :
+        case TLBRACE :
+        case TLGROUP :
+        case TRBRACE :
+        case TRGROUP :
+        case TLANGLE :
+        case TRANGLE :
+        case TLCEIL :
+        case TRCEIL :
+        case TLFLOOR :
+        case TRFLOOR :
+        case TLLINE :
+        case TRLINE :
+        case TLDLINE :
+        case TRDLINE :
+            {
+                auto pNode = std::make_unique<SmMathSymbolNode>(m_aCurToken);
+                NextToken();
+                return std::unique_ptr<SmNode>(pNode.release());
+            }
+        default:
+            return DoError(SmParseError::UnexpectedToken);
+    }
+}
+
+std::unique_ptr<SmOperNode> SmParser::DoOperator()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(TokenInGroup(TG::Oper));
+
+    auto xSNode = std::make_unique<SmOperNode>(m_aCurToken);
+
+    // get operator
+    auto xOperator = DoOper();
+
+    if (m_aCurToken.nGroup == TG::Limit || m_aCurToken.nGroup == TG::Power)
+        xOperator = DoSubSup(m_aCurToken.nGroup, xOperator.release());
+
+    // get argument
+    auto xArg = DoPower();
+
+    xSNode->SetSubNodes(std::move(xOperator), std::move(xArg));
+    return xSNode;
+}
+
+std::unique_ptr<SmNode> SmParser::DoOper()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    SmTokenType  eType (m_aCurToken.eType);
+    std::unique_ptr<SmNode> pNode;
+
+    switch (eType)
+    {
+        case TSUM :
+        case TPROD :
+        case TCOPROD :
+        case TINT :
+        case TINTD :
+        case TIINT :
+        case TIIINT :
+        case TLINT :
+        case TLLINT :
+        case TLLLINT :
+            pNode.reset(new SmMathSymbolNode(m_aCurToken));
+            break;
+
+        case TLIM :
+        case TLIMSUP :
+        case TLIMINF :
+            {
+                const char* pLim = nullptr;
+                switch (eType)
+                {
+                    case TLIM :     pLim = "lim";       break;
+                    case TLIMSUP :  pLim = "lim sup";   break;
+                    case TLIMINF :  pLim = "lim inf";   break;
+                    default:
+                        break;
+                }
+                if( pLim )
+                    m_aCurToken.aText = OUString::createFromAscii(pLim);
+                pNode.reset(new SmTextNode(m_aCurToken, FNT_TEXT));
+            }
+            break;
+
+        case TOPER :
+            NextToken();
+
+            OSL_ENSURE(m_aCurToken.eType == TSPECIAL, "Sm: wrong token");
+            pNode.reset(new SmGlyphSpecialNode(m_aCurToken));
+            break;
+
+        default :
+            assert(false && "unknown case");
+    }
+
+    NextToken();
+    return pNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoUnOper()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(TokenInGroup(TG::UnOper));
+
+    SmToken      aNodeToken = m_aCurToken;
+    SmTokenType  eType      = m_aCurToken.eType;
+    bool         bIsPostfix = eType == TFACT;
+
+    std::unique_ptr<SmStructureNode> xSNode;
+    std::unique_ptr<SmNode> xOper;
+    std::unique_ptr<SmNode> xExtra;
+    std::unique_ptr<SmNode> xArg;
+
+    switch (eType)
+    {
+        case TABS :
+        case TSQRT :
+            NextToken();
+            break;
+
+        case TNROOT :
+            NextToken();
+            xExtra = DoPower();
+            break;
+
+        case TUOPER :
+            NextToken();
+            //Let the glyph know what it is...
+            m_aCurToken.eType = TUOPER;
+            m_aCurToken.nGroup = TG::UnOper;
+            xOper = DoGlyphSpecial();
+            break;
+
+        case TPLUS :
+        case TMINUS :
+        case TPLUSMINUS :
+        case TMINUSPLUS :
+        case TNEG :
+        case TFACT :
+            xOper = DoOpSubSup();
+            break;
+
+        default :
+            assert(false);
+    }
+
+    // get argument
+    xArg = DoPower();
+
+    if (eType == TABS)
+    {
+        xSNode.reset(new SmBraceNode(aNodeToken));
+        xSNode->SetScaleMode(SmScaleMode::Height);
+
+        // build nodes for left & right lines
+        // (text, group, level of the used token are of no interest here)
+        // we'll use row & column of the keyword for abs
+        aNodeToken.eType = TABS;
+
+        aNodeToken.cMathChar = MS_VERTLINE;
+        std::unique_ptr<SmNode> xLeft(new SmMathSymbolNode(aNodeToken));
+        std::unique_ptr<SmNode> xRight(new SmMathSymbolNode(aNodeToken));
+
+        xSNode->SetSubNodes(std::move(xLeft), std::move(xArg), std::move(xRight));
+    }
+    else if (eType == TSQRT  ||  eType == TNROOT)
+    {
+        xSNode.reset(new SmRootNode(aNodeToken));
+        xOper.reset(new SmRootSymbolNode(aNodeToken));
+        xSNode->SetSubNodes(std::move(xExtra), std::move(xOper), std::move(xArg));
+    }
+    else
+    {
+        xSNode.reset(new SmUnHorNode(aNodeToken));
+        if (bIsPostfix)
+            xSNode->SetSubNodes(std::move(xArg), std::move(xOper));
+        else
+        {
+            // prefix operator
+            xSNode->SetSubNodes(std::move(xOper), std::move(xArg));
+        }
+    }
+    return xSNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoAttribut()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(TokenInGroup(TG::Attribute));
+
+    auto xSNode = std::make_unique<SmAttributNode>(m_aCurToken);
+    std::unique_ptr<SmNode> xAttr;
+    SmScaleMode  eScaleMode = SmScaleMode::None;
+
+    // get appropriate node for the attribute itself
+    switch (m_aCurToken.eType)
+    {   case TUNDERLINE :
+        case TOVERLINE :
+        case TOVERSTRIKE :
+            xAttr.reset(new SmRectangleNode(m_aCurToken));
+            eScaleMode = SmScaleMode::Width;
+            break;
+
+        case TWIDEVEC :
+        case TWIDEHARPOON :
+        case TWIDEHAT :
+        case TWIDETILDE :
+            xAttr.reset(new SmMathSymbolNode(m_aCurToken));
+            eScaleMode = SmScaleMode::Width;
+            break;
+
+        default :
+            xAttr.reset(new SmMathSymbolNode(m_aCurToken));
+    }
+
+    NextToken();
+
+    xSNode->SetSubNodes(std::move(xAttr), nullptr); // the body will be filled later
+    xSNode->SetScaleMode(eScaleMode);
+    return xSNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoFontAttribut()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(TokenInGroup(TG::FontAttr));
+
+    switch (m_aCurToken.eType)
+    {
+        case TITALIC :
+        case TNITALIC :
+        case TBOLD :
+        case TNBOLD :
+        case TPHANTOM :
+            {
+                auto pNode = std::make_unique<SmFontNode>(m_aCurToken);
+                NextToken();
+                return pNode;
+            }
+
+        case TSIZE :
+            return DoFontSize();
+
+        case TFONT :
+            return DoFont();
+
+        case TCOLOR :
+            return DoColor();
+
+        default :
+            assert(false);
+            return {};
+    }
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoColor()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(m_aCurToken.eType == TCOLOR);
+
+    std::unique_ptr<SmStructureNode> xNode;
+    // last color rules, get that one
+    SmToken  aToken;
+    do
+    {
+
+        NextToken();
+
+        if (TokenInGroup(TG::Color))
+        {
+            aToken = m_aCurToken;
+            if(m_aCurToken.eType==TRGB){
+                SmToken r,g,b;
+                sal_Int32 nr, ng, nb, nc;
+                NextToken();
+                if(m_aCurToken.eType!=TNUMBER)return DoError(SmParseError::ColorExpected);
+                r = m_aCurToken;
+                NextToken();
+                if(m_aCurToken.eType!=TNUMBER)return DoError(SmParseError::ColorExpected);
+                g = m_aCurToken;
+                NextToken();
+                if(m_aCurToken.eType!=TNUMBER)return DoError(SmParseError::ColorExpected);
+                b = m_aCurToken;
+                nr = r.aText.toInt32();
+                if( nr < 0 || nr > 255 )return DoError(SmParseError::ColorExpected);
+                ng = g.aText.toInt32();
+                if( ng < 0 || ng > 255 )return DoError(SmParseError::ColorExpected);
+                nb = b.aText.toInt32();
+                if( nb < 0 || nb > 255 )return DoError(SmParseError::ColorExpected);
+                nc = nb + 256 * ( ng + nr*256 );
+                aToken.aText = OUString::number(nc);
+            }
+            NextToken();
+        }
+        else
+        {
+            return DoError(SmParseError::ColorExpected);
+        }
+    } while (m_aCurToken.eType == TCOLOR);
+
+    xNode.reset(new SmFontNode(aToken));
+    return xNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoFont()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(m_aCurToken.eType == TFONT);
+
+    std::unique_ptr<SmStructureNode> xNode;
+    // last font rules, get that one
+    SmToken  aToken;
+    do
+    {   NextToken();
+
+        if (TokenInGroup(TG::Font))
+        {   aToken = m_aCurToken;
+            NextToken();
+        }
+        else
+        {
+            return DoError(SmParseError::FontExpected);
+        }
+    } while (m_aCurToken.eType == TFONT);
+
+    xNode.reset(new SmFontNode(aToken));
+    return xNode;
+}
+
+
+// gets number used as arguments in Math formulas (e.g. 'size' command)
+// Format: no negative numbers, must start with a digit, no exponent notation, ...
+static bool lcl_IsNumber(const OUString& rText)
+{
+    bool bPoint = false;
+    const sal_Unicode* pBuffer = rText.getStr();
+    for(sal_Int32 nPos = 0; nPos < rText.getLength(); nPos++, pBuffer++)
+    {
+        const sal_Unicode cChar = *pBuffer;
+        if(cChar == '.')
+        {
+            if(bPoint)
+                return false;
+            else
+                bPoint = true;
+        }
+        else if ( !rtl::isAsciiDigit( cChar ) )
+            return false;
+    }
+    return true;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoFontSize()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(m_aCurToken.eType == TSIZE);
+
+    FontSizeType   Type;
+    std::unique_ptr<SmFontNode> pFontNode(new SmFontNode(m_aCurToken));
+
+    NextToken();
+
+    switch (m_aCurToken.eType)
+    {
+        case TNUMBER:   Type = FontSizeType::ABSOLUT;  break;
+        case TPLUS:     Type = FontSizeType::PLUS;     break;
+        case TMINUS:    Type = FontSizeType::MINUS;    break;
+        case TMULTIPLY: Type = FontSizeType::MULTIPLY; break;
+        case TDIVIDEBY: Type = FontSizeType::DIVIDE;   break;
+
+        default:
+            return DoError(SmParseError::SizeExpected);
+    }
+
+    if (Type != FontSizeType::ABSOLUT)
+    {
+        NextToken();
+        if (m_aCurToken.eType != TNUMBER)
+            return DoError(SmParseError::SizeExpected);
+    }
+
+    // get number argument
+    Fraction  aValue( 1 );
+    if (lcl_IsNumber( m_aCurToken.aText ))
+    {
+        double fTmp = m_aCurToken.aText.toDouble();
+        if (fTmp != 0.0)
+        {
+            aValue = fTmp;
+
+            //!! keep the numerator and denominator from being too large
+            //!! otherwise ongoing multiplications may result in overflows
+            //!! (for example in SmNode::SetFontSize the font size calculated
+            //!! may become 0 because of this!!! Happens e.g. for ftmp = 2.9 with Linux
+            //!! or ftmp = 1.11111111111111111... (11/9) on every platform.)
+            if (aValue.GetDenominator() > 1000)
+            {
+                long nNum   = aValue.GetNumerator();
+                long nDenom = aValue.GetDenominator();
+                while (nDenom > 1000)
+                {
+                    nNum    /= 10;
+                    nDenom  /= 10;
+                }
+                aValue = Fraction( nNum, nDenom );
+            }
+        }
+    }
+
+    NextToken();
+
+    pFontNode->SetSizeParameter(aValue, Type);
+    return pFontNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoBrace()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    assert(m_aCurToken.eType == TLEFT  ||  TokenInGroup(TG::LBrace));
+
+    std::unique_ptr<SmStructureNode> xSNode(new SmBraceNode(m_aCurToken));
+    std::unique_ptr<SmNode> pBody, pLeft, pRight;
+    SmScaleMode   eScaleMode = SmScaleMode::None;
+    SmParseError  eError     = SmParseError::None;
+
+    if (m_aCurToken.eType == TLEFT)
+    {   NextToken();
+
+        eScaleMode = SmScaleMode::Height;
+
+        // check for left bracket
+        if (TokenInGroup(TG::LBrace) || TokenInGroup(TG::RBrace))
+        {
+            pLeft.reset(new SmMathSymbolNode(m_aCurToken));
+
+            NextToken();
+            pBody = DoBracebody(true);
+
+            if (m_aCurToken.eType == TRIGHT)
+            {   NextToken();
+
+                // check for right bracket
+                if (TokenInGroup(TG::LBrace) || TokenInGroup(TG::RBrace))
+                {
+                    pRight.reset(new SmMathSymbolNode(m_aCurToken));
+                    NextToken();
+                }
+                else
+                    eError = SmParseError::RbraceExpected;
+            }
+            else
+                eError = SmParseError::RightExpected;
+        }
+        else
+            eError = SmParseError::LbraceExpected;
+    }
+    else
+    {
+        assert(TokenInGroup(TG::LBrace));
+
+        pLeft.reset(new SmMathSymbolNode(m_aCurToken));
+
+        NextToken();
+        pBody = DoBracebody(false);
+
+        SmTokenType  eExpectedType = TUNKNOWN;
+        switch (pLeft->GetToken().eType)
+        {   case TLPARENT :     eExpectedType = TRPARENT;   break;
+            case TLBRACKET :    eExpectedType = TRBRACKET;  break;
+            case TLBRACE :      eExpectedType = TRBRACE;    break;
+            case TLDBRACKET :   eExpectedType = TRDBRACKET; break;
+            case TLLINE :       eExpectedType = TRLINE;     break;
+            case TLDLINE :      eExpectedType = TRDLINE;    break;
+            case TLANGLE :      eExpectedType = TRANGLE;    break;
+            case TLFLOOR :      eExpectedType = TRFLOOR;    break;
+            case TLCEIL :       eExpectedType = TRCEIL;     break;
+            default :
+                SAL_WARN("starmath", "unknown case");
+            }
+
+        if (m_aCurToken.eType == eExpectedType)
+        {
+            pRight.reset(new SmMathSymbolNode(m_aCurToken));
+            NextToken();
+        }
+        else
+            eError = SmParseError::ParentMismatch;
+    }
+
+    if (eError == SmParseError::None)
+    {
+        assert(pLeft);
+        assert(pRight);
+        xSNode->SetSubNodes(std::move(pLeft), std::move(pBody), std::move(pRight));
+        xSNode->SetScaleMode(eScaleMode);
+        return xSNode;
+    }
+    return DoError(eError);
+}
+
+std::unique_ptr<SmBracebodyNode> SmParser::DoBracebody(bool bIsLeftRight)
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto pBody = std::make_unique<SmBracebodyNode>(m_aCurToken);
+
+    std::vector<std::unique_ptr<SmNode>> aNodes;
+    // get body if any
+    if (bIsLeftRight)
+    {
+        do
+        {
+            if (m_aCurToken.eType == TMLINE)
+            {
+                aNodes.emplace_back(std::make_unique<SmMathSymbolNode>(m_aCurToken));
+                NextToken();
+            }
+            else if (m_aCurToken.eType != TRIGHT)
+            {
+                aNodes.push_back(DoAlign());
+                if (m_aCurToken.eType != TMLINE  &&  m_aCurToken.eType != TRIGHT)
+                    aNodes.emplace_back(DoError(SmParseError::RightExpected));
+            }
+        } while (m_aCurToken.eType != TEND  &&  m_aCurToken.eType != TRIGHT);
+    }
+    else
+    {
+        do
+        {
+            if (m_aCurToken.eType == TMLINE)
+            {
+                aNodes.emplace_back(std::make_unique<SmMathSymbolNode>(m_aCurToken));
+                NextToken();
+            }
+            else if (!TokenInGroup(TG::RBrace))
+            {
+                aNodes.push_back(DoAlign());
+                if (m_aCurToken.eType != TMLINE  &&  !TokenInGroup(TG::RBrace))
+                    aNodes.emplace_back(DoError(SmParseError::RbraceExpected));
+            }
+        } while (m_aCurToken.eType != TEND  &&  !TokenInGroup(TG::RBrace));
+    }
+
+    pBody->SetSubNodes(buildNodeArray(aNodes));
+    pBody->SetScaleMode(bIsLeftRight ? SmScaleMode::Height : SmScaleMode::None);
+    return pBody;
+}
+
+std::unique_ptr<SmTextNode> SmParser::DoFunction()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    switch (m_aCurToken.eType)
+    {
+        case TFUNC:
+            NextToken();    // skip "FUNC"-statement
+            [[fallthrough]];
+
+        case TSIN :
+        case TCOS :
+        case TTAN :
+        case TCOT :
+        case TASIN :
+        case TACOS :
+        case TATAN :
+        case TACOT :
+        case TSINH :
+        case TCOSH :
+        case TTANH :
+        case TCOTH :
+        case TASINH :
+        case TACOSH :
+        case TATANH :
+        case TACOTH :
+        case TLN :
+        case TLOG :
+        case TEXP :
+            {
+                auto pNode = std::make_unique<SmTextNode>(m_aCurToken, FNT_FUNCTION);
+                NextToken();
+                return pNode;
+            }
+
+        default:
+            assert(false);
+            return nullptr;
+    }
+}
+
+std::unique_ptr<SmTableNode> SmParser::DoBinom()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto xSNode = std::make_unique<SmTableNode>(m_aCurToken);
+
+    NextToken();
+
+    auto xFirst = DoSum();
+    auto xSecond = DoSum();
+    xSNode->SetSubNodes(std::move(xFirst), std::move(xSecond));
+    return xSNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoStack()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    std::unique_ptr<SmStructureNode> xSNode(new SmTableNode(m_aCurToken));
+    NextToken();
+    if (m_aCurToken.eType != TLGROUP)
+        return DoError(SmParseError::LgroupExpected);
+    std::vector<std::unique_ptr<SmNode>> aExprArr;
+    do
+    {
+        NextToken();
+        aExprArr.push_back(DoAlign());
+    }
+    while (m_aCurToken.eType == TPOUND);
+
+    if (m_aCurToken.eType == TRGROUP)
+        NextToken();
+    else
+        aExprArr.emplace_back(DoError(SmParseError::RgroupExpected));
+
+    xSNode->SetSubNodes(buildNodeArray(aExprArr));
+    return xSNode;
+}
+
+std::unique_ptr<SmStructureNode> SmParser::DoMatrix()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    std::unique_ptr<SmMatrixNode> xMNode(new SmMatrixNode(m_aCurToken));
+    NextToken();
+    if (m_aCurToken.eType != TLGROUP)
+        return DoError(SmParseError::LgroupExpected);
+
+    std::vector<std::unique_ptr<SmNode>> aExprArr;
+    do
+    {
+        NextToken();
+        aExprArr.push_back(DoAlign());
+    }
+    while (m_aCurToken.eType == TPOUND);
+
+    size_t nCol = aExprArr.size();
+    size_t nRow = 1;
+    while (m_aCurToken.eType == TDPOUND)
+    {
+        NextToken();
+        for (size_t i = 0; i < nCol; i++)
+        {
+            auto xNode = DoAlign();
+            if (i < (nCol - 1))
+            {
+                if (m_aCurToken.eType == TPOUND)
+                    NextToken();
+                else
+                    xNode = DoError(SmParseError::PoundExpected);
+            }
+            aExprArr.emplace_back(std::move(xNode));
+        }
+        ++nRow;
+    }
+
+    if (m_aCurToken.eType == TRGROUP)
+        NextToken();
+    else
+    {
+        std::unique_ptr<SmNode> xENode(DoError(SmParseError::RgroupExpected));
+        if (aExprArr.empty())
+            nRow = nCol = 1;
+        else
+            aExprArr.pop_back();
+        aExprArr.emplace_back(std::move(xENode));
+    }
+
+    xMNode->SetSubNodes(buildNodeArray(aExprArr));
+    xMNode->SetRowCol(static_cast<sal_uInt16>(nRow),
+                      static_cast<sal_uInt16>(nCol));
+    return std::unique_ptr<SmStructureNode>(xMNode.release());
+}
+
+std::unique_ptr<SmSpecialNode> SmParser::DoSpecial()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    bool bReplace = false;
+    OUString &rName = m_aCurToken.aText;
+    OUString aNewName;
+
+    // conversion of symbol names for 6.0 (XML) file format
+    // (name change on import / export.
+    // UI uses localized names XML file format does not.)
+    if( rName.startsWith("%") )
+    {
+        if (IsImportSymbolNames())
+        {
+            aNewName = SmLocalizedSymbolData::GetUiSymbolName(rName.copy(1));
+            bReplace = true;
+        }
+        else if (IsExportSymbolNames())
+        {
+            aNewName = SmLocalizedSymbolData::GetExportSymbolName(rName.copy(1));
+            bReplace = true;
+        }
+    }
+    if (!aNewName.isEmpty())
+        aNewName = "%" + aNewName;
+
+
+    if (bReplace && !aNewName.isEmpty() && rName != aNewName)
+    {
+        Replace(GetTokenIndex(), rName.getLength(), aNewName);
+        rName = aNewName;
+    }
+
+    // add symbol name to list of used symbols
+    const OUString aSymbolName(m_aCurToken.aText.copy(1));
+    if (!aSymbolName.isEmpty())
+        m_aUsedSymbols.insert( aSymbolName );
+
+    auto pNode = std::make_unique<SmSpecialNode>(m_aCurToken);
+    NextToken();
+    return pNode;
+}
+
+std::unique_ptr<SmGlyphSpecialNode> SmParser::DoGlyphSpecial()
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto pNode = std::make_unique<SmGlyphSpecialNode>(m_aCurToken);
+    NextToken();
+    return pNode;
+}
+
+std::unique_ptr<SmExpressionNode> SmParser::DoError(SmParseError eError)
+{
+    DepthProtect aDepthGuard(m_nParseDepth);
+    if (aDepthGuard.TooDeep())
+        throw std::range_error("parser depth limit");
+
+    auto xSNode = std::make_unique<SmExpressionNode>(m_aCurToken);
+    std::unique_ptr<SmErrorNode> pErr(new SmErrorNode(m_aCurToken));
+    xSNode->SetSubNodes(std::move(pErr), nullptr);
+
+    AddError(eError, xSNode.get());
+
+    NextToken();
+
+    return xSNode;
+}
+
+// end grammar
+
+
+SmParser::SmParser()
+    : m_nCurError( 0 )
+    , m_nBufferIndex( 0 )
+    , m_nTokenIndex( 0 )
+    , m_nRow( 0 )
+    , m_nColOff( 0 )
+    , m_bImportSymNames( false )
+    , m_bExportSymNames( false )
+    , m_nParseDepth(0)
+    , m_aNumCC( LanguageTag( LANGUAGE_ENGLISH_US ) )
+    , m_pSysCC( SM_MOD()->GetSysLocale().GetCharClassPtr() )
+{
+}
+
+std::unique_ptr<SmTableNode> SmParser::Parse(const OUString &rBuffer)
+{
+    m_aUsedSymbols.clear();
+
+    m_aBufferString = convertLineEnd(rBuffer, LINEEND_LF);
+    m_nBufferIndex  = 0;
+    m_nTokenIndex   = 0;
+    m_nRow          = 1;
+    m_nColOff       = 0;
+    m_nCurError     = -1;
+
+    m_aErrDescList.clear();
+
+    NextToken();
+    return DoTable();
+}
+
+std::unique_ptr<SmNode> SmParser::ParseExpression(const OUString &rBuffer)
+{
+    m_aBufferString = convertLineEnd(rBuffer, LINEEND_LF);
+    m_nBufferIndex  = 0;
+    m_nTokenIndex   = 0;
+    m_nRow          = 1;
+    m_nColOff       = 0;
+    m_nCurError     = -1;
+
+    m_aErrDescList.clear();
+
+    NextToken();
+    return DoExpression();
+}
+
+
+void SmParser::AddError(SmParseError Type, SmNode *pNode)
+{
+    std::unique_ptr<SmErrorDesc> pErrDesc(new SmErrorDesc);
+
+    pErrDesc->m_eType = Type;
+    pErrDesc->m_pNode = pNode;
+    pErrDesc->m_aText = SmResId(RID_ERR_IDENT);
+
+    const char* pRID;
+    switch (Type)
+    {
+        case SmParseError::UnexpectedChar:     pRID = RID_ERR_UNEXPECTEDCHARACTER; break;
+        case SmParseError::UnexpectedToken:    pRID = RID_ERR_UNEXPECTEDTOKEN;     break;
+        case SmParseError::PoundExpected:      pRID = RID_ERR_POUNDEXPECTED;       break;
+        case SmParseError::ColorExpected:      pRID = RID_ERR_COLOREXPECTED;       break;
+        case SmParseError::LgroupExpected:     pRID = RID_ERR_LGROUPEXPECTED;      break;
+        case SmParseError::RgroupExpected:     pRID = RID_ERR_RGROUPEXPECTED;      break;
+        case SmParseError::LbraceExpected:     pRID = RID_ERR_LBRACEEXPECTED;      break;
+        case SmParseError::RbraceExpected:     pRID = RID_ERR_RBRACEEXPECTED;      break;
+        case SmParseError::ParentMismatch:     pRID = RID_ERR_PARENTMISMATCH;      break;
+        case SmParseError::RightExpected:      pRID = RID_ERR_RIGHTEXPECTED;       break;
+        case SmParseError::FontExpected:       pRID = RID_ERR_FONTEXPECTED;        break;
+        case SmParseError::SizeExpected:       pRID = RID_ERR_SIZEEXPECTED;        break;
+        case SmParseError::DoubleAlign:        pRID = RID_ERR_DOUBLEALIGN;         break;
+        case SmParseError::DoubleSubsupscript: pRID = RID_ERR_DOUBLESUBSUPSCRIPT;  break;
+        default:
+            assert(false);
+            return;
+    }
+    pErrDesc->m_aText += SmResId(pRID);
+
+    m_aErrDescList.push_back(std::move(pErrDesc));
+}
+
+
+const SmErrorDesc *SmParser::NextError()
+{
+    if ( !m_aErrDescList.empty() )
+        if (m_nCurError > 0) return m_aErrDescList[ --m_nCurError ].get();
+        else
+        {
+            m_nCurError = 0;
+            return m_aErrDescList[ m_nCurError ].get();
+        }
+    else return nullptr;
+}
+
+
+const SmErrorDesc *SmParser::PrevError()
+{
+    if ( !m_aErrDescList.empty() )
+        if (m_nCurError < static_cast<int>(m_aErrDescList.size() - 1)) return m_aErrDescList[ ++m_nCurError ].get();
+        else
+        {
+            m_nCurError = static_cast<int>(m_aErrDescList.size() - 1);
+            return m_aErrDescList[ m_nCurError ].get();
+        }
+    else return nullptr;
+}
+
+
+const SmErrorDesc *SmParser::GetError()
+{
+    if ( !m_aErrDescList.empty() )
+        return m_aErrDescList.front().get();
+    return nullptr;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/rect.cxx b/starmath/source/rect.cxx
new file mode 100644
index 000000000..d49daf747
--- /dev/null
+++ b/starmath/source/rect.cxx
@@ -0,0 +1,623 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <osl/diagnose.h>
+#include <o3tl/sorted_vector.hxx>
+#include <vcl/metric.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/virdev.hxx>
+#include <sal/log.hxx>
+
+#include <format.hxx>
+#include <rect.hxx>
+#include <types.hxx>
+#include <smmod.hxx>
+
+#include <cassert>
+
+namespace {
+
+bool SmGetGlyphBoundRect(const vcl::RenderContext &rDev,
+                         const OUString &rText, tools::Rectangle &rRect)
+    // basically the same as 'GetTextBoundRect' (in class 'OutputDevice')
+    // but with a string as argument.
+{
+    // handle special case first
+    if (rText.isEmpty())
+    {
+        rRect.SetEmpty();
+        return true;
+    }
+
+    // get a device where 'OutputDevice::GetTextBoundRect' will be successful
+    OutputDevice *pGlyphDev;
+    if (rDev.GetOutDevType() != OUTDEV_PRINTER)
+        pGlyphDev = const_cast<OutputDevice *>(&rDev);
+    else
+    {
+        // since we format for the printer (where GetTextBoundRect will fail)
+        // we need a virtual device here.
+        pGlyphDev = &SM_MOD()->GetDefaultVirtualDev();
+    }
+
+    const FontMetric  aDevFM (rDev.GetFontMetric());
+
+    pGlyphDev->Push(PushFlags::FONT | PushFlags::MAPMODE);
+    vcl::Font aFnt(rDev.GetFont());
+    aFnt.SetAlignment(ALIGN_TOP);
+
+    // use scale factor when calling GetTextBoundRect to counter
+    // negative effects from antialiasing which may otherwise result
+    // in significant incorrect bounding rectangles for some characters.
+    Size aFntSize = aFnt.GetFontSize();
+
+    // Workaround to avoid HUGE font sizes and resulting problems
+    long nScaleFactor = 1;
+    while( aFntSize.Height() > 2000 * nScaleFactor )
+        nScaleFactor *= 2;
+
+    aFnt.SetFontSize( Size( aFntSize.Width() / nScaleFactor, aFntSize.Height() / nScaleFactor ) );
+    pGlyphDev->SetFont(aFnt);
+
+    long nTextWidth = rDev.GetTextWidth(rText);
+    tools::Rectangle   aResult (Point(), Size(nTextWidth, rDev.GetTextHeight())),
+                       aTmp;
+
+    bool bSuccess = pGlyphDev->GetTextBoundRect(aTmp, rText);
+    OSL_ENSURE( bSuccess, "GetTextBoundRect failed" );
+
+
+    if (!aTmp.IsEmpty())
+    {
+        aResult = tools::Rectangle(aTmp.Left() * nScaleFactor, aTmp.Top() * nScaleFactor,
+                            aTmp.Right() * nScaleFactor, aTmp.Bottom() * nScaleFactor);
+        if (&rDev != pGlyphDev) /* only when rDev is a printer... */
+        {
+            long nGDTextWidth  = pGlyphDev->GetTextWidth(rText);
+            if (nGDTextWidth != 0  &&
+                nTextWidth != nGDTextWidth)
+            {
+                aResult.SetRight( aResult.Right() * nTextWidth );
+                aResult.SetRight( aResult.Right() / ( nGDTextWidth * nScaleFactor) );
+            }
+        }
+    }
+
+    // move rectangle to match possibly different baselines
+    // (because of different devices)
+    long nDelta = aDevFM.GetAscent() - pGlyphDev->GetFontMetric().GetAscent() * nScaleFactor;
+    aResult.Move(0, nDelta);
+
+    pGlyphDev->Pop();
+
+    rRect = aResult;
+    return bSuccess;
+}
+
+bool SmIsMathAlpha(const OUString &rText)
+    // true iff symbol (from StarMath Font) should be treated as letter
+{
+    // Set of symbols, which should be treated as letters in StarMath Font
+    // (to get a normal (non-clipped) SmRect in contrast to the other operators
+    // and symbols).
+    static o3tl::sorted_vector<sal_Unicode> const aMathAlpha({
+        MS_ALEPH,               MS_IM,                  MS_RE,
+        MS_WP,                  u'\xE070',              MS_EMPTYSET,
+        u'\x2113',              u'\xE0D6',              u'\x2107',
+        u'\x2127',              u'\x210A',              MS_HBAR,
+        MS_LAMBDABAR,           MS_SETN,                MS_SETZ,
+        MS_SETQ,                MS_SETR,                MS_SETC,
+        u'\x2373',              u'\xE0A5',              u'\x2112',
+        u'\x2130',              u'\x2131'
+    });
+
+    if (rText.isEmpty())
+        return false;
+
+    OSL_ENSURE(rText.getLength() == 1, "Sm : string must be exactly one character long");
+    sal_Unicode cChar = rText[0];
+
+    // is it a greek symbol?
+    if (u'\xE0AC' <= cChar  &&  cChar <= u'\xE0D4')
+        return true;
+    // or, does it appear in 'aMathAlpha'?
+    return aMathAlpha.find(cChar) != aMathAlpha.end();
+}
+
+}
+
+
+SmRect::SmRect()
+    // constructs empty rectangle at (0, 0) with width and height 0.
+    : aTopLeft(0, 0)
+    , aSize(0, 0)
+    , nBaseline(0)
+    , nAlignT(0)
+    , nAlignM(0)
+    , nAlignB(0)
+    , nGlyphTop(0)
+    , nGlyphBottom(0)
+    , nItalicLeftSpace(0)
+    , nItalicRightSpace(0)
+    , nLoAttrFence(0)
+    , nHiAttrFence(0)
+    , nBorderWidth(0)
+    , bHasBaseline(false)
+    , bHasAlignInfo(false)
+{
+}
+
+
+void SmRect::CopyAlignInfo(const SmRect &rRect)
+{
+    nBaseline     = rRect.nBaseline;
+    bHasBaseline  = rRect.bHasBaseline;
+    nAlignT       = rRect.nAlignT;
+    nAlignM       = rRect.nAlignM;
+    nAlignB       = rRect.nAlignB;
+    bHasAlignInfo = rRect.bHasAlignInfo;
+    nLoAttrFence  = rRect.nLoAttrFence;
+    nHiAttrFence  = rRect.nHiAttrFence;
+}
+
+
+SmRect::SmRect(const OutputDevice &rDev, const SmFormat *pFormat,
+               const OUString &rText, sal_uInt16 nBorder)
+    // get rectangle fitting for drawing 'rText' on OutputDevice 'rDev'
+    : aTopLeft(0, 0)
+    , aSize(rDev.GetTextWidth(rText), rDev.GetTextHeight())
+{
+    const FontMetric  aFM (rDev.GetFontMetric());
+    bool              bIsMath  = aFM.GetFamilyName().equalsIgnoreAsciiCase( FONTNAME_MATH );
+    bool              bAllowSmaller = bIsMath && !SmIsMathAlpha(rText);
+    const long        nFontHeight = rDev.GetFont().GetFontSize().Height();
+
+    nBorderWidth  = nBorder;
+    bHasAlignInfo = true;
+    bHasBaseline  = true;
+    nBaseline     = aFM.GetAscent();
+    nAlignT       = nBaseline - nFontHeight * 750 / 1000;
+    nAlignM       = nBaseline - nFontHeight * 121 / 422;
+        // that's where the horizontal bars of '+', '-', ... are
+        // (1/3 of ascent over baseline)
+        // (121 = 1/3 of 12pt ascent, 422 = 12pt fontheight)
+    nAlignB       = nBaseline;
+
+    // workaround for printer fonts with very small (possible 0 or even
+    // negative(!)) leading
+    if (aFM.GetInternalLeading() < 5  &&  rDev.GetOutDevType() == OUTDEV_PRINTER)
+    {
+        OutputDevice    *pWindow = Application::GetDefaultDevice();
+
+        pWindow->Push(PushFlags::MAPMODE | PushFlags::FONT);
+
+        pWindow->SetMapMode(rDev.GetMapMode());
+        pWindow->SetFont(rDev.GetFontMetric());
+
+        long  nDelta = pWindow->GetFontMetric().GetInternalLeading();
+        if (nDelta == 0)
+        {   // this value approx. fits a Leading of 80 at a
+            // Fontheight of 422 (12pt)
+            nDelta = nFontHeight * 8 / 43;
+        }
+        SetTop(GetTop() - nDelta);
+
+        pWindow->Pop();
+    }
+
+    // get GlyphBoundRect
+    tools::Rectangle  aGlyphRect;
+    bool bSuccess = SmGetGlyphBoundRect(rDev, rText, aGlyphRect);
+    if (!bSuccess)
+        SAL_WARN("starmath", "Ooops... (Font missing?)");
+
+    nItalicLeftSpace  = GetLeft() - aGlyphRect.Left() + nBorderWidth;
+    nItalicRightSpace = aGlyphRect.Right() - GetRight() + nBorderWidth;
+    if (nItalicLeftSpace  < 0  &&  !bAllowSmaller)
+        nItalicLeftSpace  = 0;
+    if (nItalicRightSpace < 0  &&  !bAllowSmaller)
+        nItalicRightSpace = 0;
+
+    long  nDist = 0;
+    if (pFormat)
+        nDist = (rDev.GetFont().GetFontSize().Height()
+                * pFormat->GetDistance(DIS_ORNAMENTSIZE)) / 100;
+
+    nHiAttrFence = aGlyphRect.TopLeft().Y() - 1 - nBorderWidth - nDist;
+    nLoAttrFence = SmFromTo(GetAlignB(), GetBottom(), 0.0);
+
+    nGlyphTop    = aGlyphRect.Top() - nBorderWidth;
+    nGlyphBottom = aGlyphRect.Bottom() + nBorderWidth;
+
+    if (bAllowSmaller)
+    {
+        // for symbols and operators from the StarMath Font
+        // we adjust upper and lower margin of the symbol
+        SetTop(nGlyphTop);
+        SetBottom(nGlyphBottom);
+    }
+
+    if (nHiAttrFence < GetTop())
+        nHiAttrFence = GetTop();
+
+    if (nLoAttrFence > GetBottom())
+        nLoAttrFence = GetBottom();
+
+    OSL_ENSURE(rText.isEmpty() || !IsEmpty(),
+               "Sm: empty rectangle created");
+}
+
+
+SmRect::SmRect(long nWidth, long nHeight)
+    // this constructor should never be used for anything textlike because
+    // it will not provide useful values for baseline, AlignT and AlignB!
+    // It's purpose is to get a 'SmRect' for the horizontal line in fractions
+    // as used in 'SmBinVerNode'.
+    : aTopLeft(0, 0)
+    , aSize(nWidth, nHeight)
+    , nBaseline(0)
+    , nItalicLeftSpace(0)
+    , nItalicRightSpace(0)
+    , nBorderWidth(0)
+    , bHasBaseline(false)
+    , bHasAlignInfo(true)
+{
+    nAlignT = nGlyphTop    = nHiAttrFence = GetTop();
+    nAlignB = nGlyphBottom = nLoAttrFence = GetBottom();
+    nAlignM = (nAlignT + nAlignB) / 2;        // this is the default
+}
+
+
+void SmRect::SetLeft(long nLeft)
+{
+    if (nLeft <= GetRight())
+    {   aSize.setWidth( GetRight() - nLeft + 1 );
+        aTopLeft.setX( nLeft );
+    }
+}
+
+
+void SmRect::SetRight(long nRight)
+{
+    if (nRight >= GetLeft())
+        aSize.setWidth( nRight - GetLeft() + 1 );
+}
+
+
+void SmRect::SetBottom(long nBottom)
+{
+    if (nBottom >= GetTop())
+        aSize.setHeight( nBottom - GetTop() + 1 );
+}
+
+
+void SmRect::SetTop(long nTop)
+{
+    if (nTop <= GetBottom())
+    {   aSize.setHeight( GetBottom() - nTop + 1 );
+        aTopLeft.setY( nTop );
+    }
+}
+
+
+void SmRect::Move(const Point &rPosition)
+    // move rectangle by position 'rPosition'.
+{
+    aTopLeft  += rPosition;
+
+    long  nDelta = rPosition.Y();
+    nBaseline += nDelta;
+    nAlignT   += nDelta;
+    nAlignM   += nDelta;
+    nAlignB   += nDelta;
+    nGlyphTop    += nDelta;
+    nGlyphBottom += nDelta;
+    nHiAttrFence += nDelta;
+    nLoAttrFence += nDelta;
+}
+
+
+Point SmRect::AlignTo(const SmRect &rRect, RectPos ePos,
+                            RectHorAlign eHor, RectVerAlign eVer) const
+{   Point  aPos (GetTopLeft());
+        // will become the topleft point of the new rectangle position
+
+    // set horizontal or vertical new rectangle position depending on ePos
+    switch (ePos)
+    {   case RectPos::Left:
+            aPos.setX( rRect.GetItalicLeft() - GetItalicRightSpace()
+                       - GetWidth() );
+            break;
+        case RectPos::Right:
+            aPos.setX( rRect.GetItalicRight() + 1 + GetItalicLeftSpace() );
+            break;
+        case RectPos::Top:
+            aPos.setY( rRect.GetTop() - GetHeight() );
+            break;
+        case RectPos::Bottom:
+            aPos.setY( rRect.GetBottom() + 1 );
+            break;
+        case RectPos::Attribute:
+            aPos.setX( rRect.GetItalicCenterX() - GetItalicWidth() / 2
+                       + GetItalicLeftSpace() );
+            break;
+        default:
+            assert(false);
+    }
+
+    // check if horizontal position is already set
+    if (ePos == RectPos::Left || ePos == RectPos::Right || ePos == RectPos::Attribute)
+        // correct error in current vertical position
+        switch (eVer)
+        {   case RectVerAlign::Top :
+                aPos.AdjustY(rRect.GetAlignT() - GetAlignT() );
+                break;
+            case RectVerAlign::Mid :
+                aPos.AdjustY(rRect.GetAlignM() - GetAlignM() );
+                break;
+            case RectVerAlign::Baseline :
+                // align baselines if possible else align mid's
+                if (HasBaseline() && rRect.HasBaseline())
+                    aPos.AdjustY(rRect.GetBaseline() - GetBaseline() );
+                else
+                    aPos.AdjustY(rRect.GetAlignM() - GetAlignM() );
+                break;
+            case RectVerAlign::Bottom :
+                aPos.AdjustY(rRect.GetAlignB() - GetAlignB() );
+                break;
+            case RectVerAlign::CenterY :
+                aPos.AdjustY(rRect.GetCenterY() - GetCenterY() );
+                break;
+            case RectVerAlign::AttributeHi:
+                aPos.AdjustY(rRect.GetHiAttrFence() - GetBottom() );
+                break;
+            case RectVerAlign::AttributeMid :
+                aPos.AdjustY(SmFromTo(rRect.GetAlignB(), rRect.GetAlignT(), 0.4)
+                            - GetCenterY() );
+                break;
+            case RectVerAlign::AttributeLo :
+                aPos.AdjustY(rRect.GetLoAttrFence() - GetTop() );
+                break;
+        default :
+                assert(false);
+        }
+
+    // check if vertical position is already set
+    if (ePos == RectPos::Top || ePos == RectPos::Bottom)
+        // correct error in current horizontal position
+        switch (eHor)
+        {   case RectHorAlign::Left:
+                aPos.AdjustX(rRect.GetItalicLeft() - GetItalicLeft() );
+                break;
+            case RectHorAlign::Center:
+                aPos.AdjustX(rRect.GetItalicCenterX() - GetItalicCenterX() );
+                break;
+            case RectHorAlign::Right:
+                aPos.AdjustX(rRect.GetItalicRight() - GetItalicRight() );
+                break;
+            default:
+                assert(false);
+        }
+
+    return aPos;
+}
+
+
+void SmRect::Union(const SmRect &rRect)
+    // rectangle union of current one with 'rRect'. The result is to be the
+    // smallest rectangles that covers the space of both rectangles.
+    // (empty rectangles cover no space)
+    //! Italic correction is NOT taken into account here!
+{
+    if (rRect.IsEmpty())
+        return;
+
+    long  nL  = rRect.GetLeft(),
+          nR  = rRect.GetRight(),
+          nT  = rRect.GetTop(),
+          nB  = rRect.GetBottom(),
+          nGT = rRect.nGlyphTop,
+          nGB = rRect.nGlyphBottom;
+    if (!IsEmpty())
+    {   long  nTmp;
+
+        if ((nTmp = GetLeft()) < nL)
+            nL = nTmp;
+        if ((nTmp = GetRight()) > nR)
+            nR = nTmp;
+        if ((nTmp = GetTop()) < nT)
+            nT = nTmp;
+        if ((nTmp = GetBottom()) > nB)
+            nB = nTmp;
+        if ((nTmp = nGlyphTop) < nGT)
+            nGT = nTmp;
+        if ((nTmp = nGlyphBottom) > nGB)
+            nGB = nTmp;
+    }
+
+    SetLeft(nL);
+    SetRight(nR);
+    SetTop(nT);
+    SetBottom(nB);
+    nGlyphTop    = nGT;
+    nGlyphBottom = nGB;
+}
+
+
+SmRect & SmRect::ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode)
+    // let current rectangle be the union of itself and 'rRect'
+    // (the smallest rectangle surrounding both). Also adapt values for
+    // 'AlignT', 'AlignM', 'AlignB', baseline and italic-spaces.
+    // The baseline is set according to 'eCopyMode'.
+    // If one of the rectangles has no relevant info the other one is copied.
+{
+    // get some values used for (italic) spaces adaptation
+    // ! (need to be done before changing current SmRect) !
+    long  nL = std::min(GetItalicLeft(),  rRect.GetItalicLeft()),
+          nR = std::max(GetItalicRight(), rRect.GetItalicRight());
+
+    Union(rRect);
+
+    SetItalicSpaces(GetLeft() - nL, nR - GetRight());
+
+    if (!HasAlignInfo())
+        CopyAlignInfo(rRect);
+    else if (rRect.HasAlignInfo())
+    {
+        assert(HasAlignInfo());
+        nAlignT = std::min(GetAlignT(), rRect.GetAlignT());
+        nAlignB = std::max(GetAlignB(), rRect.GetAlignB());
+        nHiAttrFence = std::min(GetHiAttrFence(), rRect.GetHiAttrFence());
+        nLoAttrFence = std::max(GetLoAttrFence(), rRect.GetLoAttrFence());
+
+        switch (eCopyMode)
+        {   case RectCopyMBL::This:
+                // already done
+                break;
+            case RectCopyMBL::Arg:
+                CopyMBL(rRect);
+                break;
+            case RectCopyMBL::None:
+                bHasBaseline = false;
+                nAlignM = (nAlignT + nAlignB) / 2;
+                break;
+            case RectCopyMBL::Xor:
+                if (!HasBaseline())
+                    CopyMBL(rRect);
+                break;
+            default :
+                assert(false);
+        }
+    }
+
+    return *this;
+}
+
+
+void SmRect::ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode,
+                          long nNewAlignM)
+    // as 'ExtendBy' but sets AlignM value to 'nNewAlignM'.
+    // (this version will be used in 'SmBinVerNode' to provide means to
+    // align eg "{a over b} over c" correctly where AlignM should not
+    // be (AlignT + AlignB) / 2)
+{
+    OSL_ENSURE(HasAlignInfo(), "Sm: no align info");
+
+    ExtendBy(rRect, eCopyMode);
+    nAlignM = nNewAlignM;
+}
+
+
+SmRect & SmRect::ExtendBy(const SmRect &rRect, RectCopyMBL eCopyMode,
+                          bool bKeepVerAlignParams)
+    // as 'ExtendBy' but keeps original values for AlignT, -M and -B and
+    // baseline.
+    // (this is used in 'SmSupSubNode' where the sub-/supscripts shouldn't
+    // be allowed to modify these values.)
+{
+    long  nOldAlignT   = GetAlignT(),
+          nOldAlignM   = GetAlignM(),
+          nOldAlignB   = GetAlignB(),
+          nOldBaseline = nBaseline;     //! depends not on 'HasBaseline'
+    bool  bOldHasAlignInfo = HasAlignInfo();
+
+    ExtendBy(rRect, eCopyMode);
+
+    if (bKeepVerAlignParams)
+    {   nAlignT   = nOldAlignT;
+        nAlignM   = nOldAlignM;
+        nAlignB   = nOldAlignB;
+        nBaseline = nOldBaseline;
+        bHasAlignInfo = bOldHasAlignInfo;
+    }
+
+    return *this;
+}
+
+
+long SmRect::OrientedDist(const Point &rPoint) const
+    // return oriented distance of rPoint to the current rectangle,
+    // especially the return value is <= 0 iff the point is inside the
+    // rectangle.
+    // For simplicity the maximum-norm is used.
+{
+    bool  bIsInside = IsInsideItalicRect(rPoint);
+
+    // build reference point to define the distance
+    Point  aRef;
+    if (bIsInside)
+    {   Point  aIC (GetItalicCenterX(), GetCenterY());
+
+        aRef.setX( rPoint.X() >= aIC.X() ? GetItalicRight() : GetItalicLeft() );
+        aRef.setY( rPoint.Y() >= aIC.Y() ? GetBottom() : GetTop() );
+    }
+    else
+    {
+        // x-coordinate
+        if (rPoint.X() > GetItalicRight())
+            aRef.setX( GetItalicRight() );
+        else if (rPoint.X() < GetItalicLeft())
+            aRef.setX( GetItalicLeft() );
+        else
+            aRef.setX( rPoint.X() );
+        // y-coordinate
+        if (rPoint.Y() > GetBottom())
+            aRef.setY( GetBottom() );
+        else if (rPoint.Y() < GetTop())
+            aRef.setY( GetTop() );
+        else
+            aRef.setY( rPoint.Y() );
+    }
+
+    // build distance vector
+    Point  aDist (aRef - rPoint);
+
+    long nAbsX = labs(aDist.X()),
+         nAbsY = labs(aDist.Y());
+
+    return bIsInside ? - std::min(nAbsX, nAbsY) : std::max (nAbsX, nAbsY);
+}
+
+
+bool SmRect::IsInsideRect(const Point &rPoint) const
+{
+    return     rPoint.Y() >= GetTop()
+           &&  rPoint.Y() <= GetBottom()
+           &&  rPoint.X() >= GetLeft()
+           &&  rPoint.X() <= GetRight();
+}
+
+
+bool SmRect::IsInsideItalicRect(const Point &rPoint) const
+{
+    return     rPoint.Y() >= GetTop()
+           &&  rPoint.Y() <= GetBottom()
+           &&  rPoint.X() >= GetItalicLeft()
+           &&  rPoint.X() <= GetItalicRight();
+}
+
+SmRect SmRect::AsGlyphRect() const
+{
+    SmRect aRect (*this);
+    aRect.SetTop(nGlyphTop);
+    aRect.SetBottom(nGlyphBottom);
+    return aRect;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/register.cxx b/starmath/source/register.cxx
new file mode 100644
index 000000000..89f7c2dd3
--- /dev/null
+++ b/starmath/source/register.cxx
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <rtl/ustring.hxx>
+
+#include <sfx2/sfxmodelfactory.hxx>
+
+#include <com/sun/star/lang/XSingleServiceFactory.hpp>
+
+#include "register.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+
+extern "C" {
+
+SAL_DLLPUBLIC_EXPORT void* sm_component_getFactory( const char* pImplementationName,
+                                     void* pServiceManager,
+                                     void* /*pRegistryKey*/ )
+{
+    // Set default return value for this operation - if it failed.
+    void* pReturn = nullptr ;
+
+    if  (
+            ( pImplementationName   !=  nullptr ) &&
+            ( pServiceManager       !=  nullptr )
+        )
+    {
+        // Define variables which are used in following macros.
+        Reference< XSingleServiceFactory >   xFactory                                                                                                ;
+        Reference< XMultiServiceFactory >    xServiceManager( static_cast< XMultiServiceFactory* >( pServiceManager ) ) ;
+
+        if (SmDocument_getImplementationName().equalsAscii(pImplementationName))
+        {
+            xFactory = ::sfx2::createSfxModelFactory( xServiceManager,
+            SmDocument_getImplementationName(),
+            SmDocument_createInstance,
+            SmDocument_getSupportedServiceNames() );
+        }
+
+        // Factory is valid - service was found.
+        if ( xFactory.is() )
+        {
+            xFactory->acquire();
+            pReturn = xFactory.get();
+        }
+    }
+
+    // Return with result of this operation.
+    return pReturn ;
+}
+} // extern "C"
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/register.hxx b/starmath/source/register.hxx
new file mode 100644
index 000000000..be875fbec
--- /dev/null
+++ b/starmath/source/register.hxx
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_REGISTER_HXX
+#define INCLUDED_STARMATH_SOURCE_REGISTER_HXX
+
+#include <sal/config.h>
+#include <sfx2/sfxmodelfactory.hxx>
+
+//Math document
+css::uno::Sequence< OUString >
+        SmDocument_getSupportedServiceNames() throw();
+OUString
+        SmDocument_getImplementationName() throw();
+/// @throws css::uno::Exception
+css::uno::Reference< css::uno::XInterface >
+        SmDocument_createInstance(const css::uno::Reference< css::lang::XMultiServiceFactory > & rSMgr, SfxModelFlags _nCreationFlags);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/rtfexport.cxx b/starmath/source/rtfexport.cxx
new file mode 100644
index 000000000..87e51a3b9
--- /dev/null
+++ b/starmath/source/rtfexport.cxx
@@ -0,0 +1,505 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "rtfexport.hxx"
+#include <node.hxx>
+
+#include <svtools/rtfkeywd.hxx>
+#include <filter/msfilter/rtfutil.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+SmRtfExport::SmRtfExport(const SmNode* pIn)
+    : SmWordExportBase(pIn)
+    , m_pBuffer(nullptr)
+    , m_nEncoding(RTL_TEXTENCODING_DONTKNOW)
+{
+}
+
+void SmRtfExport::ConvertFromStarMath(OStringBuffer& rBuffer, rtl_TextEncoding nEncoding)
+{
+    if (!m_pTree)
+        return;
+    m_pBuffer = &rBuffer;
+    m_nEncoding = nEncoding;
+    m_pBuffer->append("{" OOO_STRING_SVTOOLS_RTF_IGNORE LO_STRING_SVTOOLS_RTF_MOMATH " ");
+    HandleNode(m_pTree, 0);
+    m_pBuffer->append("}"); // moMath
+}
+
+// NOTE: This is still work in progress and unfinished, but it already covers a good
+// part of the rtf math stuff.
+
+void SmRtfExport::HandleVerticalStack(const SmNode* pNode, int nLevel)
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MEQARR " ");
+    int size = pNode->GetNumSubNodes();
+    for (int i = 0; i < size; ++i)
+    {
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        HandleNode(pNode->GetSubNode(i), nLevel + 1);
+        m_pBuffer->append("}"); // me
+    }
+    m_pBuffer->append("}"); // meqArr
+}
+
+void SmRtfExport::HandleText(const SmNode* pNode, int /*nLevel*/)
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MR " ");
+
+    if (pNode->GetToken().eType == TTEXT) // literal text
+        m_pBuffer->append(LO_STRING_SVTOOLS_RTF_MNOR " ");
+
+    auto pTemp = static_cast<const SmTextNode*>(pNode);
+    SAL_INFO("starmath.rtf", "Text: " << pTemp->GetText());
+    for (sal_Int32 i = 0; i < pTemp->GetText().getLength(); i++)
+    {
+        sal_uInt16 nChar = pTemp->GetText()[i];
+        OUString aValue(SmTextNode::ConvertSymbolToUnicode(nChar));
+        m_pBuffer->append(msfilter::rtfutil::OutString(aValue, m_nEncoding));
+    }
+
+    m_pBuffer->append("}"); // mr
+}
+
+void SmRtfExport::HandleFractions(const SmNode* pNode, int nLevel, const char* type)
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MF " ");
+    if (type)
+    {
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MFPR " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MTYPE " ");
+        m_pBuffer->append(type);
+        m_pBuffer->append("}"); // mtype
+        m_pBuffer->append("}"); // mfPr
+    }
+    assert(pNode->GetNumSubNodes() == 3);
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MNUM " ");
+    HandleNode(pNode->GetSubNode(0), nLevel + 1);
+    m_pBuffer->append("}"); // mnum
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MDEN " ");
+    HandleNode(pNode->GetSubNode(2), nLevel + 1);
+    m_pBuffer->append("}"); // mden
+    m_pBuffer->append("}"); // mf
+}
+
+void SmRtfExport::HandleAttribute(const SmAttributNode* pNode, int nLevel)
+{
+    switch (pNode->Attribute()->GetToken().eType)
+    {
+        case TCHECK:
+        case TACUTE:
+        case TGRAVE:
+        case TBREVE:
+        case TCIRCLE:
+        case TVEC:
+        case TTILDE:
+        case THAT:
+        case TDOT:
+        case TDDOT:
+        case TDDDOT:
+        case TWIDETILDE:
+        case TWIDEHAT:
+        case TWIDEHARPOON:
+        case TWIDEVEC:
+        case TBAR:
+        {
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MACC " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MACCPR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MCHR " ");
+            OUString aValue(pNode->Attribute()->GetToken().cMathChar);
+            m_pBuffer->append(msfilter::rtfutil::OutString(aValue, m_nEncoding));
+            m_pBuffer->append("}"); // mchr
+            m_pBuffer->append("}"); // maccPr
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->Body(), nLevel + 1);
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("}"); // macc
+            break;
+        }
+        case TOVERLINE:
+        case TUNDERLINE:
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MBAR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MBARPR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MPOS " ");
+            m_pBuffer->append((pNode->Attribute()->GetToken().eType == TUNDERLINE) ? "bot" : "top");
+            m_pBuffer->append("}"); // mpos
+            m_pBuffer->append("}"); // mbarPr
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->Body(), nLevel + 1);
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("}"); // mbar
+            break;
+        case TOVERSTRIKE:
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MBORDERBOX " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MBORDERBOXPR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MHIDETOP " 1}");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MHIDEBOT " 1}");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MHIDELEFT " 1}");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MHIDERIGHT " 1}");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSTRIKEH " 1}");
+            m_pBuffer->append("}"); // mborderBoxPr
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->Body(), nLevel + 1);
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("}"); // mborderBox
+            break;
+        default:
+            HandleAllSubNodes(pNode, nLevel);
+            break;
+    }
+}
+
+void SmRtfExport::HandleRoot(const SmRootNode* pNode, int nLevel)
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MRAD " ");
+    if (const SmNode* argument = pNode->Argument())
+    {
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MDEG " ");
+        HandleNode(argument, nLevel + 1);
+        m_pBuffer->append("}"); // mdeg
+    }
+    else
+    {
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MRADPR " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MDEGHIDE " 1}");
+        m_pBuffer->append("}"); // mradPr
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MDEG " }"); // empty but present
+    }
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+    HandleNode(pNode->Body(), nLevel + 1);
+    m_pBuffer->append("}"); // me
+    m_pBuffer->append("}"); // mrad
+}
+
+namespace
+{
+OString mathSymbolToString(const SmNode* node, rtl_TextEncoding nEncoding)
+{
+    assert(node->GetType() == SmNodeType::Math || node->GetType() == SmNodeType::MathIdent);
+    auto txtnode = static_cast<const SmTextNode*>(node);
+    if (txtnode->GetText().isEmpty())
+        return OString();
+    assert(txtnode->GetText().getLength() == 1);
+    sal_Unicode chr = SmTextNode::ConvertSymbolToUnicode(txtnode->GetText()[0]);
+    OUString aValue(chr);
+    return msfilter::rtfutil::OutString(aValue, nEncoding);
+}
+}
+
+void SmRtfExport::HandleOperator(const SmOperNode* pNode, int nLevel)
+{
+    SAL_INFO("starmath.rtf", "Operator: " << int(pNode->GetToken().eType));
+    switch (pNode->GetToken().eType)
+    {
+        case TINT:
+        case TINTD:
+        case TIINT:
+        case TIIINT:
+        case TLINT:
+        case TLLINT:
+        case TLLLINT:
+        case TPROD:
+        case TCOPROD:
+        case TSUM:
+        {
+            const SmSubSupNode* subsup
+                = pNode->GetSubNode(0)->GetType() == SmNodeType::SubSup
+                      ? static_cast<const SmSubSupNode*>(pNode->GetSubNode(0))
+                      : nullptr;
+            const SmNode* operation = subsup ? subsup->GetBody() : pNode->GetSubNode(0);
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MNARY " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MNARYPR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MCHR " ");
+            m_pBuffer->append(mathSymbolToString(operation, m_nEncoding));
+            m_pBuffer->append("}"); // mchr
+            if (!subsup || !subsup->GetSubSup(CSUB))
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUBHIDE " 1}");
+            if (!subsup || !subsup->GetSubSup(CSUP))
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUPHIDE " 1}");
+            m_pBuffer->append("}"); // mnaryPr
+            if (!subsup || !subsup->GetSubSup(CSUB))
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUB " }");
+            else
+            {
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUB " ");
+                HandleNode(subsup->GetSubSup(CSUB), nLevel + 1);
+                m_pBuffer->append("}"); // msub
+            }
+            if (!subsup || !subsup->GetSubSup(CSUP))
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUP " }");
+            else
+            {
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUP " ");
+                HandleNode(subsup->GetSubSup(CSUP), nLevel + 1);
+                m_pBuffer->append("}"); // msup
+            }
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->GetSubNode(1), nLevel + 1); // body
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("}"); // mnary
+            break;
+        }
+        case TLIM:
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MFUNC " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MFNAME " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIMLOW " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->GetSymbol(), nLevel + 1);
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIM " ");
+            if (const SmSubSupNode* subsup
+                = pNode->GetSubNode(0)->GetType() == SmNodeType::SubSup
+                      ? static_cast<const SmSubSupNode*>(pNode->GetSubNode(0))
+                      : nullptr)
+                if (subsup->GetSubSup(CSUB))
+                    HandleNode(subsup->GetSubSup(CSUB), nLevel + 1);
+            m_pBuffer->append("}"); // mlim
+            m_pBuffer->append("}"); // mlimLow
+            m_pBuffer->append("}"); // mfName
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->GetSubNode(1), nLevel + 1); // body
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("}"); // mfunc
+            break;
+        default:
+            SAL_INFO("starmath.rtf", "TODO: " << OSL_THIS_FUNC << " unhandled oper type");
+            break;
+    }
+}
+
+void SmRtfExport::HandleSubSupScriptInternal(const SmSubSupNode* pNode, int nLevel, int flags)
+{
+    // rtf supports only a certain combination of sub/super scripts, but LO can have any,
+    // so try to merge it using several tags if necessary
+    if (flags == 0) // none
+        return;
+    if ((flags & (1 << RSUP | 1 << RSUB)) == (1 << RSUP | 1 << RSUB))
+    {
+        // m:sSubSup
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSSUBSUP " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        flags &= ~(1 << RSUP | 1 << RSUB);
+        if (flags == 0)
+            HandleNode(pNode->GetBody(), nLevel + 1);
+        else
+            HandleSubSupScriptInternal(pNode, nLevel, flags);
+        m_pBuffer->append("}"); // me
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUB " ");
+        HandleNode(pNode->GetSubSup(RSUB), nLevel + 1);
+        m_pBuffer->append("}"); // msub
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUP " ");
+        HandleNode(pNode->GetSubSup(RSUP), nLevel + 1);
+        m_pBuffer->append("}"); // msup
+        m_pBuffer->append("}"); // msubSup
+    }
+    else if ((flags & (1 << RSUB)) == 1 << RSUB)
+    {
+        // m:sSub
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSSUB " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        flags &= ~(1 << RSUB);
+        if (flags == 0)
+            HandleNode(pNode->GetBody(), nLevel + 1);
+        else
+            HandleSubSupScriptInternal(pNode, nLevel, flags);
+        m_pBuffer->append("}"); // me
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUB " ");
+        HandleNode(pNode->GetSubSup(RSUB), nLevel + 1);
+        m_pBuffer->append("}"); // msub
+        m_pBuffer->append("}"); // msSub
+    }
+    else if ((flags & (1 << RSUP)) == 1 << RSUP)
+    {
+        // m:sSup
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSSUP " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        flags &= ~(1 << RSUP);
+        if (flags == 0)
+            HandleNode(pNode->GetBody(), nLevel + 1);
+        else
+            HandleSubSupScriptInternal(pNode, nLevel, flags);
+        m_pBuffer->append("}"); // me
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUP " ");
+        HandleNode(pNode->GetSubSup(RSUP), nLevel + 1);
+        m_pBuffer->append("}"); // msup
+        m_pBuffer->append("}"); // msSup
+    }
+    else if ((flags & (1 << LSUP | 1 << LSUB)) == (1 << LSUP | 1 << LSUB))
+    {
+        // m:sPre
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSPRE " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUB " ");
+        HandleNode(pNode->GetSubSup(LSUB), nLevel + 1);
+        m_pBuffer->append("}"); // msub
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSUP " ");
+        HandleNode(pNode->GetSubSup(LSUP), nLevel + 1);
+        m_pBuffer->append("}"); // msup
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        flags &= ~(1 << LSUP | 1 << LSUB);
+        if (flags == 0)
+            HandleNode(pNode->GetBody(), nLevel + 1);
+        else
+            HandleSubSupScriptInternal(pNode, nLevel, flags);
+        m_pBuffer->append("}"); // me
+        m_pBuffer->append("}"); // msPre
+    }
+    else if ((flags & (1 << CSUB)) == (1 << CSUB))
+    {
+        // m:limLow looks like a good element for central superscript
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIMLOW " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        flags &= ~(1 << CSUB);
+        if (flags == 0)
+            HandleNode(pNode->GetBody(), nLevel + 1);
+        else
+            HandleSubSupScriptInternal(pNode, nLevel, flags);
+        m_pBuffer->append("}"); // me
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIM " ");
+        HandleNode(pNode->GetSubSup(CSUB), nLevel + 1);
+        m_pBuffer->append("}"); // mlim
+        m_pBuffer->append("}"); // mlimLow
+    }
+    else if ((flags & (1 << CSUP)) == (1 << CSUP))
+    {
+        // m:limUpp looks like a good element for central superscript
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIMUPP " ");
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        flags &= ~(1 << CSUP);
+        if (flags == 0)
+            HandleNode(pNode->GetBody(), nLevel + 1);
+        else
+            HandleSubSupScriptInternal(pNode, nLevel, flags);
+        m_pBuffer->append("}"); // me
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIM " ");
+        HandleNode(pNode->GetSubSup(CSUP), nLevel + 1);
+        m_pBuffer->append("}"); // mlim
+        m_pBuffer->append("}"); // mlimUpp
+    }
+    else
+        SAL_INFO("starmath.rtf", "TODO: " << OSL_THIS_FUNC << " unhandled subsup type");
+}
+
+void SmRtfExport::HandleMatrix(const SmMatrixNode* pNode, int nLevel)
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MM " ");
+    for (size_t row = 0; row < pNode->GetNumRows(); ++row)
+    {
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MMR " ");
+        for (size_t col = 0; col < pNode->GetNumCols(); ++col)
+        {
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            if (const SmNode* node = pNode->GetSubNode(row * pNode->GetNumCols() + col))
+                HandleNode(node, nLevel + 1);
+            m_pBuffer->append("}"); // me
+        }
+        m_pBuffer->append("}"); // mmr
+    }
+    m_pBuffer->append("}"); // mm
+}
+
+void SmRtfExport::HandleBrace(const SmBraceNode* pNode, int nLevel)
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MD " ");
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MDPR " ");
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MBEGCHR " ");
+    m_pBuffer->append(mathSymbolToString(pNode->OpeningBrace(), m_nEncoding));
+    m_pBuffer->append("}"); // mbegChr
+    std::vector<const SmNode*> subnodes;
+    if (pNode->Body()->GetType() == SmNodeType::Bracebody)
+    {
+        auto body = static_cast<const SmBracebodyNode*>(pNode->Body());
+        bool separatorWritten = false; // assume all separators are the same
+        for (size_t i = 0; i < body->GetNumSubNodes(); ++i)
+        {
+            const SmNode* subnode = body->GetSubNode(i);
+            if (subnode->GetType() == SmNodeType::Math
+                || subnode->GetType() == SmNodeType::MathIdent)
+            {
+                // do not write, but write what separator it is
+                auto math = static_cast<const SmMathSymbolNode*>(subnode);
+                if (!separatorWritten)
+                {
+                    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MSEPCHR " ");
+                    m_pBuffer->append(mathSymbolToString(math, m_nEncoding));
+                    m_pBuffer->append("}"); // msepChr
+                    separatorWritten = true;
+                }
+            }
+            else
+                subnodes.push_back(subnode);
+        }
+    }
+    else
+        subnodes.push_back(pNode->Body());
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MENDCHR " ");
+    m_pBuffer->append(mathSymbolToString(pNode->ClosingBrace(), m_nEncoding));
+    m_pBuffer->append("}"); // mendChr
+    m_pBuffer->append("}"); // mdPr
+    for (const SmNode* subnode : subnodes)
+    {
+        m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+        HandleNode(subnode, nLevel + 1);
+        m_pBuffer->append("}"); // me
+    }
+    m_pBuffer->append("}"); // md
+}
+
+void SmRtfExport::HandleVerticalBrace(const SmVerticalBraceNode* pNode, int nLevel)
+{
+    SAL_INFO("starmath.rtf", "Vertical: " << int(pNode->GetToken().eType));
+    switch (pNode->GetToken().eType)
+    {
+        case TOVERBRACE:
+        case TUNDERBRACE:
+        {
+            bool top = (pNode->GetToken().eType == TOVERBRACE);
+            if (top)
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIMUPP " ");
+            else
+                m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIMLOW " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MGROUPCHR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MGROUPCHRPR " ");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MCHR " ");
+            m_pBuffer->append(mathSymbolToString(pNode->Brace(), m_nEncoding));
+            m_pBuffer->append("}"); // mchr
+            // TODO not sure if pos and vertJc are correct
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MPOS " ")
+                .append(top ? "top" : "bot")
+                .append("}");
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MVERTJC " ")
+                .append(top ? "bot" : "top")
+                .append("}");
+            m_pBuffer->append("}"); // mgroupChrPr
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
+            HandleNode(pNode->Body(), nLevel + 1);
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("}"); // mgroupChr
+            m_pBuffer->append("}"); // me
+            m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MLIM " ");
+            HandleNode(pNode->Script(), nLevel + 1);
+            m_pBuffer->append("}"); // mlim
+            m_pBuffer->append("}"); // mlimUpp or mlimLow
+            break;
+        }
+        default:
+            SAL_INFO("starmath.rtf", "TODO: " << OSL_THIS_FUNC << " unhandled vertical brace type");
+            break;
+    }
+}
+
+void SmRtfExport::HandleBlank()
+{
+    m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MR " ");
+    m_pBuffer->append(" ");
+    m_pBuffer->append("}"); // mr
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/rtfexport.hxx b/starmath/source/rtfexport.hxx
new file mode 100644
index 000000000..3a1dd4feb
--- /dev/null
+++ b/starmath/source/rtfexport.hxx
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_RTFEXPORT_HXX
+#define INCLUDED_STARMATH_SOURCE_RTFEXPORT_HXX
+
+#include "wordexportbase.hxx"
+
+#include <rtl/strbuf.hxx>
+
+/**
+ Class implementing writing of formulas to RTF.
+ */
+class SmRtfExport : public SmWordExportBase
+{
+public:
+    explicit SmRtfExport(const SmNode* pIn);
+    void ConvertFromStarMath(OStringBuffer& rBuffer, rtl_TextEncoding nEncoding);
+
+private:
+    void HandleVerticalStack(const SmNode* pNode, int nLevel) override;
+    void HandleText(const SmNode* pNode, int nLevel) override;
+    void HandleFractions(const SmNode* pNode, int nLevel, const char* type) override;
+    void HandleRoot(const SmRootNode* pNode, int nLevel) override;
+    void HandleAttribute(const SmAttributNode* pNode, int nLevel) override;
+    void HandleOperator(const SmOperNode* pNode, int nLevel) override;
+    void HandleSubSupScriptInternal(const SmSubSupNode* pNode, int nLevel, int flags) override;
+    void HandleMatrix(const SmMatrixNode* pNode, int nLevel) override;
+    void HandleBrace(const SmBraceNode* pNode, int nLevel) override;
+    void HandleVerticalBrace(const SmVerticalBraceNode* pNode, int nLevel) override;
+    void HandleBlank() override;
+
+    OStringBuffer* m_pBuffer;
+    rtl_TextEncoding m_nEncoding;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/smdetect.cxx b/starmath/source/smdetect.cxx
new file mode 100644
index 000000000..aa6280156
--- /dev/null
+++ b/starmath/source/smdetect.cxx
@@ -0,0 +1,149 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "smdetect.hxx"
+#include <cppuhelper/supportsservice.hxx>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/ucb/ContentCreationException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <sfx2/docfile.hxx>
+#include <unotools/mediadescriptor.hxx>
+#include <sal/log.hxx>
+#include <sot/storage.hxx>
+#include <tools/diagnose_ex.h>
+
+#include "eqnolefilehdr.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::task;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using utl::MediaDescriptor;
+
+SmFilterDetect::SmFilterDetect()
+{
+}
+
+SmFilterDetect::~SmFilterDetect()
+{
+}
+
+OUString SAL_CALL SmFilterDetect::detect( Sequence< PropertyValue >& lDescriptor )
+{
+    MediaDescriptor aMediaDesc( lDescriptor );
+    uno::Reference< io::XInputStream > xInStream ( aMediaDesc[MediaDescriptor::PROP_INPUTSTREAM()], uno::UNO_QUERY );
+    if ( !xInStream.is() )
+        return OUString();
+
+    SfxMedium aMedium;
+    aMedium.UseInteractionHandler( false );
+    aMedium.setStreamToLoadFrom( xInStream, true );
+
+    SvStream *pInStrm = aMedium.GetInStream();
+    if ( !pInStrm || pInStrm->GetError() )
+        return OUString();
+
+    // Do not attempt to create an SotStorage on a
+    // 0-length stream as that would create the compound
+    // document header on the stream and effectively write to
+    // disk!
+    pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
+    if ( pInStrm->remainingSize() == 0 )
+        return OUString();
+
+    bool bStorageOk = false;
+    try
+    {
+        tools::SvRef<SotStorage> aStorage = new SotStorage( pInStrm, false );
+        bStorageOk = !aStorage->GetError();
+        if (bStorageOk)
+        {
+            if ( aStorage->IsStream("Equation Native") )
+            {
+                sal_uInt8 nVersion;
+                if ( GetMathTypeVersion( aStorage.get(), nVersion ) && nVersion <=3 )
+                    return "math_MathType_3x";
+            }
+        }
+    }
+    catch (const css::ucb::ContentCreationException &)
+    {
+        TOOLS_WARN_EXCEPTION("starmath", "SmFilterDetect::detect caught" );
+    }
+
+    if (!bStorageOk)
+    {
+        // 200 should be enough for the XML
+        // version, encoding and !DOCTYPE
+        // stuff I hope?
+        static const sal_uInt16 nBufferSize = 200;
+        char aBuffer[nBufferSize+1];
+        pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
+        pInStrm->StartReadingUnicodeText( RTL_TEXTENCODING_DONTKNOW ); // avoid BOM marker
+        auto nBytesRead = pInStrm->ReadBytes( aBuffer, nBufferSize );
+        if (nBytesRead >= 6)
+        {
+            aBuffer[nBytesRead] = 0;
+            bool bIsMathType = false;
+            if (0 == strncmp( "<?xml", aBuffer, 5))
+                bIsMathType = (strstr( aBuffer, "<math>" ) ||
+                               strstr( aBuffer, "<math " ) ||
+                               strstr( aBuffer, "<math:math " ));
+            else
+                // this is the old <math tag to MathML in the beginning of the XML file
+                bIsMathType = (0 == strncmp( "<math ", aBuffer, 6) ||
+                               0 == strncmp( "<math> ", aBuffer, 7) ||
+                               0 == strncmp( "<math:math> ", aBuffer, 12));
+
+            if ( bIsMathType )
+                return "math_MathML_XML_Math";
+        }
+    }
+
+    return OUString();
+}
+
+/* XServiceInfo */
+OUString SAL_CALL SmFilterDetect::getImplementationName()
+{
+    return "com.sun.star.comp.math.FormatDetector";
+}
+
+/* XServiceInfo */
+sal_Bool SAL_CALL SmFilterDetect::supportsService( const OUString& sServiceName )
+{
+    return cppu::supportsService(this, sServiceName);
+}
+
+/* XServiceInfo */
+Sequence< OUString > SAL_CALL SmFilterDetect::getSupportedServiceNames()
+{
+    return { "com.sun.star.frame.ExtendedTypeDetection" };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
+math_FormatDetector_get_implementation(uno::XComponentContext* /*pCtx*/,
+                                       uno::Sequence<uno::Any> const& /*rSeq*/)
+{
+    return cppu::acquire(new SmFilterDetect);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/smdetect.hxx b/starmath/source/smdetect.hxx
new file mode 100644
index 000000000..7869146f4
--- /dev/null
+++ b/starmath/source/smdetect.hxx
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_SMDETECT_HXX
+#define INCLUDED_STARMATH_SOURCE_SMDETECT_HXX
+
+#include <rtl/ustring.hxx>
+#include <com/sun/star/document/XExtendedFilterDetection.hpp>
+#include <cppuhelper/implbase.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+
+
+namespace com
+{
+    namespace sun
+    {
+        namespace star
+        {
+            namespace beans
+            {
+                struct PropertyValue;
+            }
+        }
+    }
+}
+
+class SmFilterDetect : public ::cppu::WeakImplHelper< css::document::XExtendedFilterDetection, css::lang::XServiceInfo >
+{
+public:
+    explicit SmFilterDetect();
+    virtual                 ~SmFilterDetect() override;
+
+    /* XServiceInfo */
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& sServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XExtendedFilterDetect
+    virtual OUString SAL_CALL detect( css::uno::Sequence< css::beans::PropertyValue >& lDescriptor ) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/smdll.cxx b/starmath/source/smdll.cxx
new file mode 100644
index 000000000..78dc2183b
--- /dev/null
+++ b/starmath/source/smdll.cxx
@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <svx/svxids.hrc>
+#include <svx/modctrl.hxx>
+#include <svx/zoomctrl.hxx>
+#include <svx/zoomsliderctrl.hxx>
+#include <sfx2/docfac.hxx>
+#include <svx/lboxctrl.hxx>
+#include <sfx2/app.hxx>
+
+#include <smdll.hxx>
+#include <smmod.hxx>
+#include <document.hxx>
+#include <view.hxx>
+
+#include <ElementsDockingWindow.hxx>
+
+#include <starmath.hrc>
+
+#include <svx/xmlsecctrl.hxx>
+
+namespace
+{
+    class SmDLL
+    {
+    public:
+        SmDLL();
+    };
+
+    SmDLL::SmDLL()
+    {
+        if ( SfxApplication::GetModule(SfxToolsModule::Math) )    // Module already active
+            return;
+
+        SfxObjectFactory& rFactory = SmDocShell::Factory();
+
+        auto pUniqueModule = std::make_unique<SmModule>(&rFactory);
+        SmModule* pModule = pUniqueModule.get();
+        SfxApplication::SetModule(SfxToolsModule::Math, std::move(pUniqueModule));
+
+        rFactory.SetDocumentServiceName( "com.sun.star.formula.FormulaProperties" );
+
+        SmModule::RegisterInterface(pModule);
+        SmDocShell::RegisterInterface(pModule);
+        SmViewShell::RegisterInterface(pModule);
+
+        SmViewShell::RegisterFactory(SFX_INTERFACE_SFXAPP);
+
+        SvxZoomStatusBarControl::RegisterControl(SID_ATTR_ZOOM, pModule);
+        SvxZoomSliderControl::RegisterControl(SID_ATTR_ZOOMSLIDER, pModule);
+        SvxModifyControl::RegisterControl(SID_TEXTSTATUS, pModule);
+        XmlSecStatusBarControl::RegisterControl(SID_SIGNATURE, pModule);
+
+        SmCmdBoxWrapper::RegisterChildWindow(true);
+        SmElementsDockingWindowWrapper::RegisterChildWindow(true);
+    }
+
+    struct theSmDLLInstance : public rtl::Static<SmDLL, theSmDLLInstance> {};
+}
+
+namespace SmGlobals
+{
+    void ensure()
+    {
+        theSmDLLInstance::get();
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/smmod.cxx b/starmath/source/smmod.cxx
new file mode 100644
index 000000000..788f5f5e2
--- /dev/null
+++ b/starmath/source/smmod.cxx
@@ -0,0 +1,235 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <sfx2/objface.hxx>
+#include <svl/whiter.hxx>
+#include <sfx2/viewsh.hxx>
+#include <svx/svxids.hrc>
+#include <unotools/resmgr.hxx>
+#include <vcl/virdev.hxx>
+#include <unotools/syslocale.hxx>
+#include <smmod.hxx>
+#include "cfgitem.hxx"
+#include <dialog.hxx>
+#include <edit.hxx>
+#include <view.hxx>
+#include <smmod.hrc>
+#include <starmath.hrc>
+#include <svx/modctrl.hxx>
+#include <svtools/colorcfg.hxx>
+
+
+#define ShellClass_SmModule
+#include <smslots.hxx>
+
+OUString SmResId(const char* pId)
+{
+    return Translate::get(pId, SM_MOD()->GetResLocale());
+}
+
+OUString SmLocalizedSymbolData::GetUiSymbolName( const OUString &rExportName )
+{
+    OUString aRes;
+
+    for (size_t i = 0; i < SAL_N_ELEMENTS(RID_UI_SYMBOL_NAMES); ++i)
+    {
+        if (rExportName.equalsAscii(strchr(RID_UI_SYMBOL_NAMES[i], '\004') + 1))
+        {
+            aRes = SmResId(RID_UI_SYMBOL_NAMES[i]);
+            break;
+        }
+    }
+
+    return aRes;
+}
+
+OUString SmLocalizedSymbolData::GetExportSymbolName( const OUString &rUiName )
+{
+    OUString aRes;
+
+    for (size_t i = 0; i < SAL_N_ELEMENTS(RID_UI_SYMBOL_NAMES); ++i)
+    {
+        if (rUiName == SmResId(RID_UI_SYMBOL_NAMES[i]))
+        {
+            const char *pKey = strchr(RID_UI_SYMBOL_NAMES[i], '\004') + 1;
+            aRes = OUString(pKey, strlen(pKey), RTL_TEXTENCODING_UTF8);
+            break;
+        }
+    }
+
+    return aRes;
+}
+
+OUString SmLocalizedSymbolData::GetUiSymbolSetName( const OUString &rExportName )
+{
+    OUString aRes;
+
+    for (size_t i = 0; i < SAL_N_ELEMENTS(RID_UI_SYMBOLSET_NAMES); ++i)
+    {
+        if (rExportName.equalsAscii(strchr(RID_UI_SYMBOLSET_NAMES[i], '\004') + 1))
+        {
+            aRes = SmResId(RID_UI_SYMBOLSET_NAMES[i]);
+            break;
+        }
+    }
+
+    return aRes;
+}
+
+OUString SmLocalizedSymbolData::GetExportSymbolSetName( const OUString &rUiName )
+{
+    OUString aRes;
+
+    for (size_t i = 0; i < SAL_N_ELEMENTS(RID_UI_SYMBOLSET_NAMES); ++i)
+    {
+        if (rUiName == SmResId(RID_UI_SYMBOLSET_NAMES[i]))
+        {
+            const char *pKey = strchr(RID_UI_SYMBOLSET_NAMES[i], '\004') + 1;
+            aRes = OUString(pKey, strlen(pKey), RTL_TEXTENCODING_UTF8);
+            break;
+        }
+    }
+
+    return aRes;
+}
+
+SFX_IMPL_INTERFACE(SmModule, SfxModule)
+
+void SmModule::InitInterface_Impl()
+{
+    GetStaticInterface()->RegisterStatusBar(StatusBarId::MathStatusBar);
+}
+
+SmModule::SmModule(SfxObjectFactory* pObjFact)
+    : SfxModule("sm", {pObjFact})
+{
+    SetName("StarMath");
+
+    SvxModifyControl::RegisterControl(SID_DOC_MODIFIED, this);
+}
+
+SmModule::~SmModule()
+{
+    if (mpColorConfig)
+        mpColorConfig->RemoveListener(this);
+    mpVirtualDev.disposeAndClear();
+}
+
+svtools::ColorConfig & SmModule::GetColorConfig()
+{
+    if(!mpColorConfig)
+    {
+        mpColorConfig.reset(new svtools::ColorConfig);
+        mpColorConfig->AddListener(this);
+    }
+    return *mpColorConfig;
+}
+
+void SmModule::ConfigurationChanged(utl::ConfigurationBroadcaster* pBrdCst, ConfigurationHints)
+{
+    if (pBrdCst == mpColorConfig.get())
+    {
+        SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+        while (pViewShell)
+        {
+            if (dynamic_cast<const SmViewShell *>(pViewShell) != nullptr)
+                pViewShell->GetWindow()->Invalidate();
+            pViewShell = SfxViewShell::GetNext(*pViewShell);
+        }
+    }
+}
+
+SmMathConfig * SmModule::GetConfig()
+{
+    if(!mpConfig)
+        mpConfig.reset(new SmMathConfig);
+    return mpConfig.get();
+}
+
+SmSymbolManager & SmModule::GetSymbolManager()
+{
+    return GetConfig()->GetSymbolManager();
+}
+
+const SvtSysLocale& SmModule::GetSysLocale()
+{
+    if( !mpSysLocale )
+        mpSysLocale.reset(new SvtSysLocale);
+    return *mpSysLocale;
+}
+
+VirtualDevice &SmModule::GetDefaultVirtualDev()
+{
+    if (!mpVirtualDev)
+    {
+        mpVirtualDev.reset( VclPtr<VirtualDevice>::Create() );
+        mpVirtualDev->SetReferenceDevice( VirtualDevice::RefDevMode::MSO1 );
+    }
+    return *mpVirtualDev;
+}
+
+void SmModule::GetState(SfxItemSet &rSet)
+{
+    SfxWhichIter aIter(rSet);
+
+    for (sal_uInt16 nWh = aIter.FirstWhich(); 0 != nWh; nWh = aIter.NextWhich())
+        switch (nWh)
+        {
+            case SID_CONFIGEVENT :
+                rSet.DisableItem(SID_CONFIGEVENT);
+                break;
+        }
+}
+
+std::unique_ptr<SfxItemSet> SmModule::CreateItemSet( sal_uInt16 nId )
+{
+    std::unique_ptr<SfxItemSet> pRet;
+    if(nId == SID_SM_EDITOPTIONS)
+    {
+        pRet = std::make_unique<SfxItemSet>(
+            GetPool(),
+            svl::Items< //TP_SMPRINT
+                SID_PRINTTITLE, SID_PRINTZOOM,
+                SID_NO_RIGHT_SPACES, SID_SAVE_ONLY_USED_SYMBOLS,
+                SID_AUTO_CLOSE_BRACKETS, SID_AUTO_CLOSE_BRACKETS>{});
+
+        GetConfig()->ConfigToItemSet(*pRet);
+    }
+    return pRet;
+}
+
+void SmModule::ApplyItemSet( sal_uInt16 nId, const SfxItemSet& rSet )
+{
+    if(nId == SID_SM_EDITOPTIONS)
+    {
+        GetConfig()->ItemSetToConfig(rSet);
+    }
+}
+
+std::unique_ptr<SfxTabPage> SmModule::CreateTabPage( sal_uInt16 nId, weld::Container* pPage, weld::DialogController* pController, const SfxItemSet& rSet )
+{
+    std::unique_ptr<SfxTabPage> xRet;
+    if (nId == SID_SM_TP_PRINTOPTIONS)
+        xRet = SmPrintOptionsTabPage::Create(pPage, pController, rSet);
+    return xRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/symbol.cxx b/starmath/source/symbol.cxx
new file mode 100644
index 000000000..5e6a6486a
--- /dev/null
+++ b/starmath/source/symbol.cxx
@@ -0,0 +1,274 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vector>
+
+#include <symbol.hxx>
+#include <utility.hxx>
+#include "cfgitem.hxx"
+#include <smmod.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+
+SmSym::SmSym() :
+    m_aName(OUString("unknown")),
+    m_aSetName(OUString("unknown")),
+    m_cChar('\0'),
+    m_bPredefined(false)
+{
+    m_aExportName = m_aName;
+    m_aFace.SetTransparent(true);
+    m_aFace.SetAlignment(ALIGN_BASELINE);
+}
+
+
+SmSym::SmSym(const SmSym& rSymbol)
+{
+    *this = rSymbol;
+}
+
+
+SmSym::SmSym(const OUString& rName, const vcl::Font& rFont, sal_UCS4 cChar,
+             const OUString& rSet, bool bIsPredefined)
+{
+    m_aName     = m_aExportName   = rName;
+
+    m_aFace     = rFont;
+    m_aFace.SetTransparent(true);
+    m_aFace.SetAlignment(ALIGN_BASELINE);
+
+    m_cChar         = cChar;
+    m_aSetName      = rSet;
+    m_bPredefined   = bIsPredefined;
+}
+
+
+SmSym& SmSym::operator = (const SmSym& rSymbol)
+{
+    m_aName         = rSymbol.m_aName;
+    m_aExportName   = rSymbol.m_aExportName;
+    m_cChar         = rSymbol.m_cChar;
+    m_aFace         = rSymbol.m_aFace;
+    m_aSetName      = rSymbol.m_aSetName;
+    m_bPredefined   = rSymbol.m_bPredefined;
+
+    SM_MOD()->GetSymbolManager().SetModified(true);
+
+    return *this;
+}
+
+
+bool SmSym::IsEqualInUI( const SmSym& rSymbol ) const
+{
+    return  m_aName == rSymbol.m_aName &&
+            m_aFace == rSymbol.m_aFace &&
+            m_cChar == rSymbol.m_cChar;
+}
+
+/**************************************************************************/
+
+
+SmSymbolManager::SmSymbolManager()
+{
+    m_bModified     = false;
+}
+
+
+SmSymbolManager::SmSymbolManager(const SmSymbolManager& rSymbolSetManager)
+{
+    m_aSymbols      = rSymbolSetManager.m_aSymbols;
+    m_bModified     = true;
+}
+
+
+SmSymbolManager::~SmSymbolManager()
+{
+}
+
+
+SmSymbolManager& SmSymbolManager::operator = (const SmSymbolManager& rSymbolSetManager)
+{
+    m_aSymbols      = rSymbolSetManager.m_aSymbols;
+    m_bModified     = true;
+    return *this;
+}
+
+
+SmSym *SmSymbolManager::GetSymbolByName(const OUString& rSymbolName)
+{
+    SmSym *pRes = nullptr;
+    SymbolMap_t::iterator aIt( m_aSymbols.find( rSymbolName ) );
+    if (aIt != m_aSymbols.end())
+        pRes = &aIt->second;
+    return pRes;
+}
+
+
+SymbolPtrVec_t SmSymbolManager::GetSymbols() const
+{
+    SymbolPtrVec_t aRes;
+    for (const auto& rEntry : m_aSymbols)
+        aRes.push_back( &rEntry.second );
+//    OSL_ENSURE( sSymbols.size() == m_aSymbols.size(), "number of symbols mismatch " );
+    return aRes;
+}
+
+
+bool SmSymbolManager::AddOrReplaceSymbol( const SmSym &rSymbol, bool bForceChange )
+{
+    bool bAdded = false;
+
+    const OUString& aSymbolName( rSymbol.GetName() );
+    if (!aSymbolName.isEmpty() && !rSymbol.GetSymbolSetName().isEmpty())
+    {
+        const SmSym *pFound = GetSymbolByName( aSymbolName );
+        const bool bSymbolConflict = pFound && !pFound->IsEqualInUI( rSymbol );
+
+        // avoid having the same symbol name twice but with different symbols in use
+        if (!pFound || bForceChange)
+        {
+            m_aSymbols[ aSymbolName ] = rSymbol;
+            bAdded = true;
+        }
+        else if (bSymbolConflict)
+        {
+            // TODO: to solve this a document owned symbol manager would be required ...
+                SAL_WARN("starmath", "symbol conflict, different symbol with same name found!");
+            // symbols in all formulas. A copy of the global one would be needed here
+            // and then the new symbol has to be forcefully applied. This would keep
+            // the current formula intact but will leave the set of symbols in the
+            // global symbol manager somewhat to chance.
+        }
+
+        OSL_ENSURE( bAdded, "failed to add symbol" );
+        if (bAdded)
+            m_bModified = true;
+        OSL_ENSURE( bAdded || (pFound && !bSymbolConflict), "AddOrReplaceSymbol: unresolved symbol conflict" );
+    }
+
+    return bAdded;
+}
+
+
+void SmSymbolManager::RemoveSymbol( const OUString & rSymbolName )
+{
+    if (!rSymbolName.isEmpty())
+    {
+        size_t nOldSize = m_aSymbols.size();
+        m_aSymbols.erase( rSymbolName );
+        m_bModified = nOldSize != m_aSymbols.size();
+    }
+}
+
+
+std::set< OUString > SmSymbolManager::GetSymbolSetNames() const
+{
+    std::set< OUString >  aRes;
+    for (const auto& rEntry : m_aSymbols)
+        aRes.insert( rEntry.second.GetSymbolSetName() );
+    return aRes;
+}
+
+
+SymbolPtrVec_t SmSymbolManager::GetSymbolSet( const OUString& rSymbolSetName )
+{
+    SymbolPtrVec_t aRes;
+    if (!rSymbolSetName.isEmpty())
+    {
+        for (const auto& rEntry : m_aSymbols)
+        {
+            if (rEntry.second.GetSymbolSetName() == rSymbolSetName)
+                aRes.push_back( &rEntry.second );
+        }
+    }
+    return aRes;
+}
+
+
+void SmSymbolManager::Load()
+{
+    std::vector< SmSym > aSymbols;
+    SmMathConfig &rCfg = *SM_MOD()->GetConfig();
+    rCfg.GetSymbols( aSymbols );
+    size_t nSymbolCount = aSymbols.size();
+
+    m_aSymbols.clear();
+    for (size_t i = 0;  i < nSymbolCount;  ++i)
+    {
+        const SmSym &rSym = aSymbols[i];
+        OSL_ENSURE( !rSym.GetName().isEmpty(), "symbol without name!" );
+        if (!rSym.GetName().isEmpty())
+            AddOrReplaceSymbol( rSym );
+    }
+    m_bModified = true;
+
+    if (0 == nSymbolCount)
+    {
+        SAL_WARN("starmath", "no symbol set found");
+        m_bModified = false;
+    }
+
+    // now add a %i... symbol to the 'iGreek' set for every symbol found in the 'Greek' set.
+    const OUString aGreekSymbolSetName(SmLocalizedSymbolData::GetUiSymbolSetName("Greek"));
+    const SymbolPtrVec_t    aGreekSymbols( GetSymbolSet( aGreekSymbolSetName ) );
+    OUString aSymbolSetName = "i" + aGreekSymbolSetName;
+    size_t nSymbols = aGreekSymbols.size();
+    for (size_t i = 0;  i < nSymbols;  ++i)
+    {
+        // make the new symbol a copy but with ITALIC_NORMAL, and add it to iGreek
+        const SmSym &rSym = *aGreekSymbols[i];
+        vcl::Font aFont( rSym.GetFace() );
+        OSL_ENSURE( aFont.GetItalic() == ITALIC_NONE, "expected Font with ITALIC_NONE, failed." );
+        aFont.SetItalic( ITALIC_NORMAL );
+        OUString aSymbolName = "i" + rSym.GetName();
+        SmSym aSymbol( aSymbolName, aFont, rSym.GetCharacter(),
+                aSymbolSetName, true /*bIsPredefined*/ );
+
+        AddOrReplaceSymbol( aSymbol );
+    }
+}
+
+void SmSymbolManager::Save()
+{
+    if (!m_bModified)
+        return;
+
+    SmMathConfig &rCfg = *SM_MOD()->GetConfig();
+
+    // prepare to skip symbols from iGreek on saving
+    OUString aSymbolSetName = "i" +
+        SmLocalizedSymbolData::GetUiSymbolSetName("Greek");
+
+    SymbolPtrVec_t aTmp( GetSymbols() );
+    std::vector< SmSym > aSymbols;
+    for (const SmSym* i : aTmp)
+    {
+        // skip symbols from iGreek set since those symbols always get added
+        // by computational means in SmSymbolManager::Load
+        if (i->GetSymbolSetName() != aSymbolSetName)
+            aSymbols.push_back( *i );
+    }
+    rCfg.SetSymbols( aSymbols );
+
+    m_bModified = false;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/tmpdevice.cxx b/starmath/source/tmpdevice.cxx
new file mode 100644
index 000000000..074903d3c
--- /dev/null
+++ b/starmath/source/tmpdevice.cxx
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <smmod.hxx>
+#include "tmpdevice.hxx"
+
+#include <svtools/colorcfg.hxx>
+#include <vcl/window.hxx>
+#include <sal/log.hxx>
+
+// SmTmpDevice
+// Allows for font and color changes. The original settings will be restored
+// in the destructor.
+// It's main purpose is to allow for the "const" in the 'OutputDevice'
+// argument in the 'Arrange' functions and restore changes made in the 'Draw'
+// functions.
+// Usually a MapMode of 1/100th mm will be used.
+
+SmTmpDevice::SmTmpDevice(OutputDevice &rTheDev, bool bUseMap100th_mm) :
+    rOutDev(rTheDev)
+{
+    rOutDev.Push(PushFlags::FONT | PushFlags::MAPMODE |
+                 PushFlags::LINECOLOR | PushFlags::FILLCOLOR | PushFlags::TEXTCOLOR);
+    if (bUseMap100th_mm  &&  MapUnit::Map100thMM != rOutDev.GetMapMode().GetMapUnit())
+    {
+        SAL_WARN("starmath", "incorrect MapMode?");
+        rOutDev.SetMapMode(MapMode(MapUnit::Map100thMM)); // format for 100% always
+    }
+}
+
+
+Color SmTmpDevice::GetTextColor(const Color& rTextColor)
+{
+    if (rTextColor == COL_AUTO)
+    {
+        Color aConfigFontColor = SM_MOD()->GetColorConfig().GetColorValue(svtools::FONTCOLOR).nColor;
+        return rOutDev.GetReadableFontColor(aConfigFontColor, rOutDev.GetBackgroundColor());
+    }
+
+    return rTextColor;
+}
+
+
+void SmTmpDevice::SetFont(const vcl::Font &rNewFont)
+{
+    rOutDev.SetFont(rNewFont);
+    rOutDev.SetTextColor(GetTextColor(rNewFont.GetColor()));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/tmpdevice.hxx b/starmath/source/tmpdevice.hxx
new file mode 100644
index 000000000..e7c812cd6
--- /dev/null
+++ b/starmath/source/tmpdevice.hxx
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_TMPDEVICE_HXX
+#define INCLUDED_STARMATH_SOURCE_TMPDEVICE_HXX
+
+#include <tools/color.hxx>
+#include <vcl/outdev.hxx>
+
+class SmTmpDevice
+{
+    OutputDevice &rOutDev;
+
+    SmTmpDevice(const SmTmpDevice&) = delete;
+    SmTmpDevice& operator=(const SmTmpDevice&) = delete;
+
+    Color GetTextColor(const Color& rTextColor);
+
+public:
+    SmTmpDevice(OutputDevice &rTheDev, bool bUseMap100th_mm);
+    ~SmTmpDevice() COVERITY_NOEXCEPT_FALSE { rOutDev.Pop(); }
+
+    void SetFont(const vcl::Font &rNewFont);
+
+    void SetLineColor(const Color& rColor) { rOutDev.SetLineColor(GetTextColor(rColor)); }
+    void SetFillColor(const Color& rColor) { rOutDev.SetFillColor(GetTextColor(rColor)); }
+
+    operator OutputDevice & () { return rOutDev; }
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/typemap.cxx b/starmath/source/typemap.cxx
new file mode 100644
index 000000000..ba7910747
--- /dev/null
+++ b/starmath/source/typemap.cxx
@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <config_options.h>
+
+#include <sfx2/msg.hxx>
+#include <sfx2/zoomitem.hxx>
+#include <svx/zoomslideritem.hxx>
+#include <svl/slstitm.hxx>
+
+#ifdef DISABLE_DYNLOADING
+/* Avoid clash with the ones from svx/source/form/typemap.cxx */
+#define aSfxInt16Item_Impl starmath_source_appl_typemap_aSfxInt16Item_Impl
+#endif
+
+#define SFX_TYPEMAP
+#include <smslots.hxx>
+
+#ifdef DISABLE_DYNLOADING
+#undef aSfxInt16Item_Impl
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/uiobject.cxx b/starmath/source/uiobject.cxx
new file mode 100644
index 000000000..a6f0c47cb
--- /dev/null
+++ b/starmath/source/uiobject.cxx
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <memory>
+#include "uiobject.hxx"
+#include <vcl/layout.hxx>
+#include <ElementsDockingWindow.hxx>
+
+ElementUIObject::ElementUIObject(SmElementsControl* pElementSelector,
+        const OUString& rID):
+    mpElementsSelector(pElementSelector),
+    maID(rID)
+{
+}
+
+SmElement* ElementUIObject::get_element()
+{
+    sal_uInt32 nID = maID.toUInt32();
+    size_t n = mpElementsSelector->maElementList.size();
+    if (nID >= n)
+        return nullptr;
+
+    return mpElementsSelector->maElementList[nID].get();
+}
+
+StringMap ElementUIObject::get_state()
+{
+    StringMap aMap;
+    aMap["ID"] = maID;
+
+    SmElement* pElement = get_element();
+    if (pElement)
+        aMap["Text"] = pElement->getText();
+
+    return aMap;
+}
+
+void ElementUIObject::execute(const OUString& rAction,
+        const StringMap& /*rParameters*/)
+{
+    if (rAction == "SELECT")
+    {
+        SmElement* pElement = get_element();
+        if (pElement)
+            mpElementsSelector->maSelectHdlLink.Call(*pElement);
+    }
+}
+
+ElementSelectorUIObject::ElementSelectorUIObject(vcl::Window* pElementSelectorWindow, SmElementsControl* pElementSelector)
+    : WindowUIObject(pElementSelectorWindow)
+    , mpElementsSelector(pElementSelector)
+{
+}
+
+StringMap ElementSelectorUIObject::get_state()
+{
+    StringMap aMap = WindowUIObject::get_state();
+
+    SmElement* pElement = mpElementsSelector->current();
+    if (pElement)
+        aMap["CurrentEntry"] = pElement->getText();
+
+    aMap["CurrentSelection"] = OUString::fromUtf8(mpElementsSelector->msCurrentSetId);
+
+    return aMap;
+}
+
+std::unique_ptr<UIObject> ElementSelectorUIObject::get_child(const OUString& rID)
+{
+    size_t nID = rID.toInt32();
+    size_t n = mpElementsSelector->maElementList.size();
+    if (nID >= n)
+        throw css::uno::RuntimeException("invalid id");
+
+    return std::unique_ptr<UIObject>(new ElementUIObject(mpElementsSelector, rID));
+}
+
+std::set<OUString> ElementSelectorUIObject::get_children() const
+{
+    std::set<OUString> aChildren;
+
+    size_t n = mpElementsSelector->maElementList.size();
+    for (size_t i = 0; i < n; ++i)
+    {
+        aChildren.insert(OUString::number(i));
+    }
+
+    return aChildren;
+}
+
+std::unique_ptr<UIObject> ElementSelectorUIObject::create(vcl::Window* pWindow)
+{
+    VclDrawingArea* pSmElementsWin = dynamic_cast<VclDrawingArea*>(pWindow);
+    assert(pSmElementsWin);
+    return std::unique_ptr<UIObject>(new ElementSelectorUIObject(pSmElementsWin, static_cast<SmElementsControl*>(pSmElementsWin->GetUserData())));
+}
+
+OUString ElementSelectorUIObject::get_name() const
+{
+    return "SmElementSelector";
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/uiobject.hxx b/starmath/source/uiobject.hxx
new file mode 100644
index 000000000..607c9194c
--- /dev/null
+++ b/starmath/source/uiobject.hxx
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_UIOBJECT_HXX
+#define INCLUDED_STARMATH_SOURCE_UIOBJECT_HXX
+
+#include <memory>
+#include <vcl/uitest/uiobject.hxx>
+
+#include <ElementsDockingWindow.hxx>
+
+class ElementUIObject : public UIObject
+{
+private:
+    SmElementsControl* mpElementsSelector;
+    OUString           maID;
+
+public:
+
+    ElementUIObject(SmElementsControl* pElementSelector,
+            const OUString& rID);
+
+    virtual StringMap get_state() override;
+
+    virtual void execute(const OUString& rAction,
+            const StringMap& rParameters) override;
+
+private:
+    SmElement* get_element();
+};
+
+class ElementSelectorUIObject : public WindowUIObject
+{
+private:
+    SmElementsControl* mpElementsSelector;
+
+public:
+
+    explicit ElementSelectorUIObject(vcl::Window* pElementSelectorWindow, SmElementsControl* pElementSelector);
+
+    virtual StringMap get_state() override;
+
+    static std::unique_ptr<UIObject> create(vcl::Window* pWindow);
+
+    virtual std::unique_ptr<UIObject> get_child(const OUString& rID) override;
+
+    virtual std::set<OUString> get_children() const override;
+
+protected:
+
+    virtual OUString get_name() const override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/unodoc.cxx b/starmath/source/unodoc.cxx
new file mode 100644
index 000000000..ac7a36439
--- /dev/null
+++ b/starmath/source/unodoc.cxx
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sfx2/sfxmodelfactory.hxx>
+
+#include "register.hxx"
+#include <smdll.hxx>
+#include <document.hxx>
+#include <com/sun/star/frame/XModel.hpp>
+#include <vcl/svapp.hxx>
+
+using namespace ::com::sun::star;
+
+OUString SmDocument_getImplementationName() throw()
+{
+    return "com.sun.star.comp.Math.FormulaDocument";
+}
+
+uno::Sequence< OUString > SmDocument_getSupportedServiceNames() throw()
+{
+    return uno::Sequence<OUString>{ "com.sun.star.formula.FormulaProperties" };
+}
+
+uno::Reference< uno::XInterface > SmDocument_createInstance(
+                const uno::Reference< lang::XMultiServiceFactory > & /*rSMgr*/, SfxModelFlags _nCreationFlags )
+{
+    SolarMutexGuard aGuard;
+    SmGlobals::ensure();
+    SfxObjectShell* pShell = new SmDocShell( _nCreationFlags );
+    return uno::Reference< uno::XInterface >( pShell->GetModel() );
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/unofilter.cxx b/starmath/source/unofilter.cxx
new file mode 100644
index 000000000..719681af4
--- /dev/null
+++ b/starmath/source/unofilter.cxx
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <memory>
+
+#include <unotools/mediadescriptor.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <sot/storage.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <document.hxx>
+#include "mathtype.hxx"
+#include <unomodel.hxx>
+#include <tools/diagnose_ex.h>
+
+using namespace ::com::sun::star;
+
+namespace
+{
+/// Invokes the MathType importer via UNO.
+class MathTypeFilter
+    : public cppu::WeakImplHelper<document::XFilter, document::XImporter, lang::XServiceInfo>
+{
+    uno::Reference<lang::XComponent> m_xDstDoc;
+
+public:
+    MathTypeFilter();
+
+    // XFilter
+    sal_Bool SAL_CALL filter(const uno::Sequence<beans::PropertyValue>& rDescriptor) override;
+    void SAL_CALL cancel() override;
+
+    // XImporter
+    void SAL_CALL setTargetDocument(const uno::Reference<lang::XComponent>& xDoc) override;
+
+    // XServiceInfo
+    OUString SAL_CALL getImplementationName() override;
+    sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override;
+    uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+};
+}
+
+MathTypeFilter::MathTypeFilter() = default;
+
+sal_Bool MathTypeFilter::filter(const uno::Sequence<beans::PropertyValue>& rDescriptor)
+{
+    bool bSuccess = false;
+    try
+    {
+        utl::MediaDescriptor aMediaDesc(rDescriptor);
+        aMediaDesc.addInputStream();
+        uno::Reference<io::XInputStream> xInputStream;
+        aMediaDesc[utl::MediaDescriptor::PROP_INPUTSTREAM()] >>= xInputStream;
+        std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(xInputStream));
+        if (pStream)
+        {
+            if (SotStorage::IsStorageFile(pStream.get()))
+            {
+                tools::SvRef<SotStorage> aStorage(new SotStorage(pStream.get(), false));
+                // Is this a MathType Storage?
+                if (aStorage->IsStream("Equation Native"))
+                {
+                    if (auto pModel = dynamic_cast<SmModel*>(m_xDstDoc.get()))
+                    {
+                        auto pDocShell = static_cast<SmDocShell*>(pModel->GetObjectShell());
+                        OUStringBuffer aText(pDocShell->GetText());
+                        MathType aEquation(aText);
+                        bSuccess = aEquation.Parse(aStorage.get());
+                        if (bSuccess)
+                        {
+                            pDocShell->SetText(aText.makeStringAndClear());
+                            pDocShell->Parse();
+                        }
+                    }
+                }
+            }
+        }
+    }
+    catch (const uno::Exception&)
+    {
+        DBG_UNHANDLED_EXCEPTION("starmath");
+    }
+    return bSuccess;
+}
+
+void MathTypeFilter::cancel() {}
+
+void MathTypeFilter::setTargetDocument(const uno::Reference<lang::XComponent>& xDoc)
+{
+    m_xDstDoc = xDoc;
+}
+
+OUString MathTypeFilter::getImplementationName() { return "com.sun.star.comp.Math.MathTypeFilter"; }
+
+sal_Bool MathTypeFilter::supportsService(const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence<OUString> MathTypeFilter::getSupportedServiceNames()
+{
+    uno::Sequence<OUString> aRet = { OUString("com.sun.star.document.ImportFilter") };
+    return aRet;
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
+com_sun_star_comp_Math_MathTypeFilter_get_implementation(uno::XComponentContext* /*pCtx*/,
+                                                         uno::Sequence<uno::Any> const& /*rSeq*/)
+{
+    return cppu::acquire(new MathTypeFilter);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/unomodel.cxx b/starmath/source/unomodel.cxx
new file mode 100644
index 000000000..17d52ce7b
--- /dev/null
+++ b/starmath/source/unomodel.cxx
@@ -0,0 +1,1100 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <utility>
+
+#include <o3tl/any.hxx>
+#include <sfx2/printer.hxx>
+#include <svl/itemprop.hxx>
+#include <svl/itemset.hxx>
+#include <vcl/svapp.hxx>
+#include <unotools/localedatawrapper.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/print.hxx>
+#include <toolkit/awt/vclxdevice.hxx>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/formula/SymbolDescriptor.hpp>
+#include <com/sun/star/awt/Size.hpp>
+#include <comphelper/propertysetinfo.hxx>
+#include <comphelper/sequence.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <unotools/moduleoptions.hxx>
+#include <tools/mapunit.hxx>
+#include <tools/stream.hxx>
+
+#include <unomodel.hxx>
+#include <document.hxx>
+#include <view.hxx>
+#include <symbol.hxx>
+#include <starmath.hrc>
+#include <strings.hrc>
+#include <smmod.hxx>
+#include "cfgitem.hxx"
+
+using namespace ::cppu;
+using namespace ::std;
+using namespace ::comphelper;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::formula;
+using namespace ::com::sun::star::view;
+using namespace ::com::sun::star::script;
+
+SmPrintUIOptions::SmPrintUIOptions()
+{
+    SmModule *pp = SM_MOD();
+    SmMathConfig *pConfig = pp->GetConfig();
+    SAL_WARN_IF( !pConfig, "starmath", "SmConfig not found" );
+    if (!pConfig)
+        return;
+
+    sal_Int32 nNumProps = 10, nIdx=0;
+
+    // create sequence of print UI options
+    // (Actually IsIgnoreSpacesRight is a parser option. Without it we need only 8 properties here.)
+    m_aUIProperties.resize( nNumProps );
+
+    // load the math PrinterOptions into the custom tab
+    m_aUIProperties[nIdx].Name = "OptionsUIFile";
+    m_aUIProperties[nIdx++].Value <<= OUString("modules/smath/ui/printeroptions.ui");
+
+    // create Section for formula (results in an extra tab page in dialog)
+    SvtModuleOptions aOpt;
+    OUString aAppGroupname(
+        SmResId( RID_PRINTUIOPT_PRODNAME ).
+            replaceFirst( "%s", aOpt.GetModuleName( SvtModuleOptions::EModule::MATH ) ) );
+    m_aUIProperties[nIdx++].Value = setGroupControlOpt("tabcontrol-page2", aAppGroupname, ".HelpID:vcl:PrintDialog:TabPage:AppPage");
+
+    // create subgroup for print options
+    m_aUIProperties[nIdx++].Value = setSubgroupControlOpt("contents", SmResId( RID_PRINTUIOPT_CONTENTS ), OUString());
+
+    // create a bool option for title row (matches to SID_PRINTTITLE)
+    m_aUIProperties[nIdx++].Value = setBoolControlOpt("title", SmResId( RID_PRINTUIOPT_TITLE ),
+                                                  ".HelpID:vcl:PrintDialog:TitleRow:CheckBox",
+                                                  PRTUIOPT_TITLE_ROW,
+                                                  pConfig->IsPrintTitle());
+    // create a bool option for formula text (matches to SID_PRINTTEXT)
+    m_aUIProperties[nIdx++].Value = setBoolControlOpt("formulatext", SmResId( RID_PRINTUIOPT_FRMLTXT ),
+                                                  ".HelpID:vcl:PrintDialog:FormulaText:CheckBox",
+                                                  PRTUIOPT_FORMULA_TEXT,
+                                                  pConfig->IsPrintFormulaText());
+    // create a bool option for border (matches to SID_PRINTFRAME)
+    m_aUIProperties[nIdx++].Value = setBoolControlOpt("borders", SmResId( RID_PRINTUIOPT_BORDERS ),
+                                                  ".HelpID:vcl:PrintDialog:Border:CheckBox",
+                                                  PRTUIOPT_BORDER,
+                                                  pConfig->IsPrintFrame());
+
+    // create subgroup for print format
+    m_aUIProperties[nIdx++].Value = setSubgroupControlOpt("size", SmResId( RID_PRINTUIOPT_SIZE ), OUString());
+
+    // create a radio button group for print format (matches to SID_PRINTSIZE)
+    Sequence< OUString > aChoices{
+        SmResId( RID_PRINTUIOPT_ORIGSIZE ),
+        SmResId( RID_PRINTUIOPT_FITTOPAGE ),
+        SmResId( RID_PRINTUIOPT_SCALING )
+    };
+    Sequence< OUString > aHelpIds{
+        ".HelpID:vcl:PrintDialog:PrintFormat:RadioButton:0",
+        ".HelpID:vcl:PrintDialog:PrintFormat:RadioButton:1",
+        ".HelpID:vcl:PrintDialog:PrintFormat:RadioButton:2"
+    };
+    Sequence< OUString > aWidgetIds{
+        "originalsize",
+        "fittopage",
+        "scaling"
+    };
+    OUString aPrintFormatProp( PRTUIOPT_PRINT_FORMAT );
+    m_aUIProperties[nIdx++].Value = setChoiceRadiosControlOpt(aWidgetIds, OUString(),
+                                                    aHelpIds,
+                                                    aPrintFormatProp,
+                                                    aChoices, static_cast< sal_Int32 >(pConfig->GetPrintSize())
+                                                    );
+
+    // create a numeric box for scale dependent on PrintFormat = "Scaling" (matches to SID_PRINTZOOM)
+    vcl::PrinterOptionsHelper::UIControlOptions aRangeOpt( aPrintFormatProp, 2, true );
+    m_aUIProperties[nIdx++].Value = setRangeControlOpt("scalingspin", OUString(),
+                                                     ".HelpID:vcl:PrintDialog:PrintScale:NumericField",
+                                                     PRTUIOPT_PRINT_SCALE,
+                                                     pConfig->GetPrintZoomFactor(),    // initial value
+                                                     10,     // min value
+                                                     1000,   // max value
+                                                     aRangeOpt);
+
+    Sequence< PropertyValue > aHintNoLayoutPage( 1 );
+    aHintNoLayoutPage[0].Name = "HintNoLayoutPage";
+    aHintNoLayoutPage[0].Value <<= true;
+    m_aUIProperties[nIdx++].Value <<= aHintNoLayoutPage;
+
+    assert(nIdx == nNumProps);
+}
+
+
+
+namespace {
+
+enum SmModelPropertyHandles
+{
+    HANDLE_FORMULA,
+    HANDLE_FONT_NAME_VARIABLES,
+    HANDLE_FONT_NAME_FUNCTIONS,
+    HANDLE_FONT_NAME_NUMBERS,
+    HANDLE_FONT_NAME_TEXT,
+    HANDLE_CUSTOM_FONT_NAME_SERIF,
+    HANDLE_CUSTOM_FONT_NAME_SANS,
+    HANDLE_CUSTOM_FONT_NAME_FIXED,
+    HANDLE_CUSTOM_FONT_FIXED_POSTURE,
+    HANDLE_CUSTOM_FONT_FIXED_WEIGHT,
+    HANDLE_CUSTOM_FONT_SANS_POSTURE,
+    HANDLE_CUSTOM_FONT_SANS_WEIGHT,
+    HANDLE_CUSTOM_FONT_SERIF_POSTURE,
+    HANDLE_CUSTOM_FONT_SERIF_WEIGHT,
+    HANDLE_FONT_VARIABLES_POSTURE,
+    HANDLE_FONT_VARIABLES_WEIGHT,
+    HANDLE_FONT_FUNCTIONS_POSTURE,
+    HANDLE_FONT_FUNCTIONS_WEIGHT,
+    HANDLE_FONT_NUMBERS_POSTURE,
+    HANDLE_FONT_NUMBERS_WEIGHT,
+    HANDLE_FONT_TEXT_POSTURE,
+    HANDLE_FONT_TEXT_WEIGHT,
+    HANDLE_BASE_FONT_HEIGHT,
+    HANDLE_RELATIVE_FONT_HEIGHT_TEXT,
+    HANDLE_RELATIVE_FONT_HEIGHT_INDICES,
+    HANDLE_RELATIVE_FONT_HEIGHT_FUNCTIONS,
+    HANDLE_RELATIVE_FONT_HEIGHT_OPERATORS,
+    HANDLE_RELATIVE_FONT_HEIGHT_LIMITS,
+    HANDLE_IS_TEXT_MODE,
+    HANDLE_GREEK_CHAR_STYLE,
+    HANDLE_ALIGNMENT,
+    HANDLE_RELATIVE_SPACING,
+    HANDLE_RELATIVE_LINE_SPACING,
+    HANDLE_RELATIVE_ROOT_SPACING,
+    HANDLE_RELATIVE_INDEX_SUPERSCRIPT,
+    HANDLE_RELATIVE_INDEX_SUBSCRIPT,
+    HANDLE_RELATIVE_FRACTION_NUMERATOR_HEIGHT,
+    HANDLE_RELATIVE_FRACTION_DENOMINATOR_DEPTH,
+    HANDLE_RELATIVE_FRACTION_BAR_EXCESS_LENGTH,
+    HANDLE_RELATIVE_FRACTION_BAR_LINE_WEIGHT,
+    HANDLE_RELATIVE_UPPER_LIMIT_DISTANCE,
+    HANDLE_RELATIVE_LOWER_LIMIT_DISTANCE,
+    HANDLE_RELATIVE_BRACKET_EXCESS_SIZE,
+    HANDLE_RELATIVE_BRACKET_DISTANCE,
+    HANDLE_IS_SCALE_ALL_BRACKETS,
+    HANDLE_RELATIVE_SCALE_BRACKET_EXCESS_SIZE,
+    HANDLE_RELATIVE_MATRIX_LINE_SPACING,
+    HANDLE_RELATIVE_MATRIX_COLUMN_SPACING,
+    HANDLE_RELATIVE_SYMBOL_PRIMARY_HEIGHT,
+    HANDLE_RELATIVE_SYMBOL_MINIMUM_HEIGHT,
+    HANDLE_RELATIVE_OPERATOR_EXCESS_SIZE,
+    HANDLE_RELATIVE_OPERATOR_SPACING,
+    HANDLE_LEFT_MARGIN,
+    HANDLE_RIGHT_MARGIN,
+    HANDLE_TOP_MARGIN,
+    HANDLE_BOTTOM_MARGIN,
+    HANDLE_PRINTER_NAME,
+    HANDLE_PRINTER_SETUP,
+    HANDLE_SYMBOLS,
+    HANDLE_SAVE_THUMBNAIL,
+    HANDLE_USED_SYMBOLS,
+    HANDLE_BASIC_LIBRARIES,
+    HANDLE_RUNTIME_UID,
+    HANDLE_LOAD_READONLY,     // Security Options
+    HANDLE_DIALOG_LIBRARIES,  // #i73329#
+    HANDLE_BASELINE,
+    HANDLE_INTEROP_GRAB_BAG,
+};
+
+}
+
+static rtl::Reference<PropertySetInfo> lcl_createModelPropertyInfo ()
+{
+    static PropertyMapEntry aModelPropertyInfoMap[] =
+    {
+        { OUString("Alignment")                        , HANDLE_ALIGNMENT                          ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  0                     },
+        { OUString("BaseFontHeight")                   , HANDLE_BASE_FONT_HEIGHT                   ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  0                     },
+        { OUString("BasicLibraries")                   , HANDLE_BASIC_LIBRARIES                    ,  cppu::UnoType<script::XLibraryContainer>::get(),  PropertyAttribute::READONLY,  0       },
+        { OUString("BottomMargin")                     , HANDLE_BOTTOM_MARGIN                      ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_BOTTOMSPACE       },
+        { OUString("CustomFontNameFixed")              , HANDLE_CUSTOM_FONT_NAME_FIXED             ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_FIXED             },
+        { OUString("CustomFontNameSans")               , HANDLE_CUSTOM_FONT_NAME_SANS              ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_SANS              },
+        { OUString("CustomFontNameSerif")              , HANDLE_CUSTOM_FONT_NAME_SERIF             ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_SERIF             },
+        { OUString("DialogLibraries")                  , HANDLE_DIALOG_LIBRARIES                   ,  cppu::UnoType<script::XLibraryContainer>::get(),  PropertyAttribute::READONLY,  0       },
+        { OUString("FontFixedIsBold")                  , HANDLE_CUSTOM_FONT_FIXED_WEIGHT           ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_FIXED             },
+        { OUString("FontFixedIsItalic")                , HANDLE_CUSTOM_FONT_FIXED_POSTURE          ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_FIXED             },
+        { OUString("FontFunctionsIsBold")              , HANDLE_FONT_FUNCTIONS_WEIGHT              ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_FUNCTION          },
+        { OUString("FontFunctionsIsItalic")            , HANDLE_FONT_FUNCTIONS_POSTURE             ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_FUNCTION          },
+        { OUString("FontNameFunctions")                , HANDLE_FONT_NAME_FUNCTIONS                ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_FUNCTION          },
+        { OUString("FontNameNumbers")                  , HANDLE_FONT_NAME_NUMBERS                  ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_NUMBER            },
+        { OUString("FontNameText")                     , HANDLE_FONT_NAME_TEXT                     ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_TEXT              },
+        { OUString("FontNameVariables")                , HANDLE_FONT_NAME_VARIABLES                ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  FNT_VARIABLE          },
+        { OUString("FontNumbersIsBold")                , HANDLE_FONT_NUMBERS_WEIGHT                ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_NUMBER            },
+        { OUString("FontNumbersIsItalic")              , HANDLE_FONT_NUMBERS_POSTURE               ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_NUMBER            },
+        { OUString("FontSansIsBold")                   , HANDLE_CUSTOM_FONT_SANS_WEIGHT            ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_SANS              },
+        { OUString("FontSansIsItalic")                 , HANDLE_CUSTOM_FONT_SANS_POSTURE           ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_SANS              },
+        { OUString("FontSerifIsBold")                  , HANDLE_CUSTOM_FONT_SERIF_WEIGHT           ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_SERIF             },
+        { OUString("FontSerifIsItalic")                , HANDLE_CUSTOM_FONT_SERIF_POSTURE          ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_SERIF             },
+        { OUString("FontTextIsBold")                   , HANDLE_FONT_TEXT_WEIGHT                   ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_TEXT              },
+        { OUString("FontTextIsItalic")                 , HANDLE_FONT_TEXT_POSTURE                  ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_TEXT              },
+        { OUString("FontVariablesIsBold")              , HANDLE_FONT_VARIABLES_WEIGHT              ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_VARIABLE          },
+        { OUString("FontVariablesIsItalic")            , HANDLE_FONT_VARIABLES_POSTURE             ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  FNT_VARIABLE          },
+        { OUString("Formula")                          , HANDLE_FORMULA                            ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  0                     },
+        { OUString("IsScaleAllBrackets")               , HANDLE_IS_SCALE_ALL_BRACKETS              ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  0                     },
+        { OUString("IsTextMode")                       , HANDLE_IS_TEXT_MODE                       ,  cppu::UnoType<bool>::get(),                                                 PROPERTY_NONE,  0                     },
+        { OUString("GreekCharStyle")                   , HANDLE_GREEK_CHAR_STYLE                   ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  0                     },
+        { OUString("LeftMargin")                       , HANDLE_LEFT_MARGIN                        ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_LEFTSPACE         },
+        { OUString("PrinterName")                      , HANDLE_PRINTER_NAME                       ,  ::cppu::UnoType<OUString>::get(),                                      PROPERTY_NONE,  0                     },
+        { OUString("PrinterSetup")                     , HANDLE_PRINTER_SETUP                      ,  cppu::UnoType<const Sequence < sal_Int8 >>::get(),                         PROPERTY_NONE,  0                     },
+        { OUString("RelativeBracketDistance")          , HANDLE_RELATIVE_BRACKET_DISTANCE          ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_BRACKETSPACE      },
+        { OUString("RelativeBracketExcessSize")        , HANDLE_RELATIVE_BRACKET_EXCESS_SIZE       ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_BRACKETSIZE       },
+        { OUString("RelativeFontHeightFunctions")      , HANDLE_RELATIVE_FONT_HEIGHT_FUNCTIONS     ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  SIZ_FUNCTION          },
+        { OUString("RelativeFontHeightIndices")        , HANDLE_RELATIVE_FONT_HEIGHT_INDICES       ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  SIZ_INDEX             },
+        { OUString("RelativeFontHeightLimits")         , HANDLE_RELATIVE_FONT_HEIGHT_LIMITS        ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  SIZ_LIMITS            },
+        { OUString("RelativeFontHeightOperators")      , HANDLE_RELATIVE_FONT_HEIGHT_OPERATORS     ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  SIZ_OPERATOR          },
+        { OUString("RelativeFontHeightText")           , HANDLE_RELATIVE_FONT_HEIGHT_TEXT          ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  SIZ_TEXT              },
+        { OUString("RelativeFractionBarExcessLength")  , HANDLE_RELATIVE_FRACTION_BAR_EXCESS_LENGTH,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_FRACTION          },
+        { OUString("RelativeFractionBarLineWeight")    , HANDLE_RELATIVE_FRACTION_BAR_LINE_WEIGHT  ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_STROKEWIDTH       },
+        { OUString("RelativeFractionDenominatorDepth") , HANDLE_RELATIVE_FRACTION_DENOMINATOR_DEPTH,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_DENOMINATOR       },
+        { OUString("RelativeFractionNumeratorHeight")  , HANDLE_RELATIVE_FRACTION_NUMERATOR_HEIGHT ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_NUMERATOR         },
+        { OUString("RelativeIndexSubscript")           , HANDLE_RELATIVE_INDEX_SUBSCRIPT           ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_SUBSCRIPT         },
+        { OUString("RelativeIndexSuperscript")         , HANDLE_RELATIVE_INDEX_SUPERSCRIPT         ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_SUPERSCRIPT       },
+        { OUString("RelativeLineSpacing")              , HANDLE_RELATIVE_LINE_SPACING              ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_VERTICAL          },
+        { OUString("RelativeLowerLimitDistance")       , HANDLE_RELATIVE_LOWER_LIMIT_DISTANCE      ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_LOWERLIMIT        },
+        { OUString("RelativeMatrixColumnSpacing")      , HANDLE_RELATIVE_MATRIX_COLUMN_SPACING     ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_MATRIXCOL         },
+        { OUString("RelativeMatrixLineSpacing")        , HANDLE_RELATIVE_MATRIX_LINE_SPACING       ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_MATRIXROW         },
+        { OUString("RelativeOperatorExcessSize")       , HANDLE_RELATIVE_OPERATOR_EXCESS_SIZE      ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_OPERATORSIZE      },
+        { OUString("RelativeOperatorSpacing")          , HANDLE_RELATIVE_OPERATOR_SPACING          ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_OPERATORSPACE     },
+        { OUString("RelativeRootSpacing")              , HANDLE_RELATIVE_ROOT_SPACING              ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_ROOT              },
+        { OUString("RelativeScaleBracketExcessSize")   , HANDLE_RELATIVE_SCALE_BRACKET_EXCESS_SIZE ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_NORMALBRACKETSIZE },
+        { OUString("RelativeSpacing")                  , HANDLE_RELATIVE_SPACING                   ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_HORIZONTAL        },
+        { OUString("RelativeSymbolMinimumHeight")      , HANDLE_RELATIVE_SYMBOL_MINIMUM_HEIGHT     ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_ORNAMENTSPACE     },
+        { OUString("RelativeSymbolPrimaryHeight")      , HANDLE_RELATIVE_SYMBOL_PRIMARY_HEIGHT     ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_ORNAMENTSIZE      },
+        { OUString("RelativeUpperLimitDistance")       , HANDLE_RELATIVE_UPPER_LIMIT_DISTANCE      ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_UPPERLIMIT        },
+        { OUString("RightMargin")                      , HANDLE_RIGHT_MARGIN                       ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_RIGHTSPACE        },
+        { OUString("RuntimeUID")                       , HANDLE_RUNTIME_UID                        ,  cppu::UnoType<OUString>::get(),                                        PropertyAttribute::READONLY,  0       },
+        { OUString("SaveThumbnail")                    , HANDLE_SAVE_THUMBNAIL                     ,  cppu::UnoType<bool>::get(),                                            PROPERTY_NONE,  0                     },
+        { OUString("Symbols")                          , HANDLE_SYMBOLS                            ,  cppu::UnoType<Sequence < SymbolDescriptor >>::get(),                   PROPERTY_NONE,  0                     },
+        { OUString("UserDefinedSymbolsInUse")          , HANDLE_USED_SYMBOLS                       ,  cppu::UnoType<Sequence < SymbolDescriptor >>::get(),                   PropertyAttribute::READONLY,  0       },
+        { OUString("TopMargin")                        , HANDLE_TOP_MARGIN                         ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  DIS_TOPSPACE          },
+        // #i33095# Security Options
+        { OUString("LoadReadonly")                     , HANDLE_LOAD_READONLY                      ,  cppu::UnoType<bool>::get(),                                            PROPERTY_NONE,  0                     },
+        // #i972#
+        { OUString("BaseLine")                         , HANDLE_BASELINE                           ,  ::cppu::UnoType<sal_Int16>::get(),                                     PROPERTY_NONE,  0                     },
+        { OUString("InteropGrabBag")                   , HANDLE_INTEROP_GRAB_BAG                   ,  cppu::UnoType<uno::Sequence< beans::PropertyValue >>::get(),           PROPERTY_NONE,  0                     },
+        { OUString(), 0, css::uno::Type(), 0, 0 }
+    };
+    return rtl::Reference<PropertySetInfo>( new PropertySetInfo ( aModelPropertyInfoMap ) );
+}
+
+SmModel::SmModel( SfxObjectShell *pObjSh )
+: SfxBaseModel(pObjSh)
+, PropertySetHelper ( lcl_createModelPropertyInfo () )
+{
+}
+
+SmModel::~SmModel() throw ()
+{
+}
+
+uno::Any SAL_CALL SmModel::queryInterface( const uno::Type& rType )
+{
+    uno::Any aRet =  ::cppu::queryInterface ( rType,
+                                    // OWeakObject interfaces
+                                    &dynamic_cast<XInterface&>(static_cast<XUnoTunnel&>(*this)),
+                                    static_cast< XWeak* > ( this ),
+                                    // PropertySetHelper interfaces
+                                    static_cast< XPropertySet* > ( this ),
+                                    static_cast< XMultiPropertySet* > ( this ),
+                                    // my own interfaces
+                                    static_cast< XServiceInfo*  > ( this ),
+                                    static_cast< XRenderable*  > ( this ) );
+    if (!aRet.hasValue())
+        aRet = SfxBaseModel::queryInterface ( rType );
+    return aRet;
+}
+
+void SAL_CALL SmModel::acquire() throw()
+{
+    OWeakObject::acquire();
+}
+
+void SAL_CALL SmModel::release() throw()
+{
+    OWeakObject::release();
+}
+
+uno::Sequence< uno::Type > SAL_CALL SmModel::getTypes(  )
+{
+    return comphelper::concatSequences(SfxBaseModel::getTypes(),
+        uno::Sequence  {
+            cppu::UnoType<XServiceInfo>::get(),
+            cppu::UnoType<XPropertySet>::get(),
+            cppu::UnoType<XMultiPropertySet>::get(),
+            cppu::UnoType<XRenderable>::get() });
+}
+
+namespace
+{
+    class theSmModelUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theSmModelUnoTunnelId> {};
+}
+
+const uno::Sequence< sal_Int8 > & SmModel::getUnoTunnelId()
+{
+    return theSmModelUnoTunnelId::get().getSeq();
+}
+
+sal_Int64 SAL_CALL SmModel::getSomething( const uno::Sequence< sal_Int8 >& rId )
+{
+    if( isUnoTunnelId<SmModel>(rId) )
+    {
+        return sal::static_int_cast< sal_Int64 >(reinterpret_cast< sal_uIntPtr >(this));
+    }
+
+    return SfxBaseModel::getSomething( rId );
+}
+
+static sal_Int16 lcl_AnyToINT16(const uno::Any& rAny)
+{
+    sal_Int16 nRet = 0;
+    if( auto x = o3tl::tryAccess<double>(rAny) )
+        nRet = static_cast<sal_Int16>(*x);
+    else
+        rAny >>= nRet;
+    return nRet;
+}
+
+OUString SmModel::getImplementationName()
+{
+    return "com.sun.star.comp.Math.FormulaDocument";
+}
+
+sal_Bool SmModel::supportsService(const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence< OUString > SmModel::getSupportedServiceNames()
+{
+    return uno::Sequence<OUString>{
+        "com.sun.star.document.OfficeDocument",
+        "com.sun.star.formula.FormulaProperties"
+    };
+}
+
+void SmModel::_setPropertyValues(const PropertyMapEntry** ppEntries, const Any* pValues)
+{
+    SolarMutexGuard aGuard;
+
+    SmDocShell *pDocSh = static_cast < SmDocShell * > (GetObjectShell());
+
+    if ( nullptr == pDocSh )
+        throw UnknownPropertyException();
+
+    SmFormat aFormat = pDocSh->GetFormat();
+
+    for (; *ppEntries; ppEntries++, pValues++ )
+    {
+        if ((*ppEntries)->mnAttributes & PropertyAttribute::READONLY)
+            throw PropertyVetoException();
+
+        switch ( (*ppEntries)->mnHandle )
+        {
+            case HANDLE_FORMULA:
+            {
+                OUString aText;
+                *pValues >>= aText;
+                pDocSh->SetText(aText);
+            }
+            break;
+            case HANDLE_FONT_NAME_VARIABLES                :
+            case HANDLE_FONT_NAME_FUNCTIONS                :
+            case HANDLE_FONT_NAME_NUMBERS                  :
+            case HANDLE_FONT_NAME_TEXT                     :
+            case HANDLE_CUSTOM_FONT_NAME_SERIF             :
+            case HANDLE_CUSTOM_FONT_NAME_SANS              :
+            case HANDLE_CUSTOM_FONT_NAME_FIXED             :
+            {
+                OUString sFontName;
+                *pValues >>= sFontName;
+                if(sFontName.isEmpty())
+                    throw IllegalArgumentException();
+
+                if(aFormat.GetFont((*ppEntries)->mnMemberId).GetFamilyName() != sFontName)
+                {
+                    const SmFace rOld = aFormat.GetFont((*ppEntries)->mnMemberId);
+
+                    SmFace aSet( sFontName, rOld.GetFontSize() );
+                    aSet.SetBorderWidth( rOld.GetBorderWidth() );
+                    aSet.SetAlignment( ALIGN_BASELINE );
+                    aFormat.SetFont( (*ppEntries)->mnMemberId, aSet );
+                }
+            }
+            break;
+            case HANDLE_CUSTOM_FONT_FIXED_POSTURE:
+            case HANDLE_CUSTOM_FONT_SANS_POSTURE :
+            case HANDLE_CUSTOM_FONT_SERIF_POSTURE:
+            case HANDLE_FONT_VARIABLES_POSTURE   :
+            case HANDLE_FONT_FUNCTIONS_POSTURE   :
+            case HANDLE_FONT_NUMBERS_POSTURE     :
+            case HANDLE_FONT_TEXT_POSTURE        :
+            {
+                auto bVal = o3tl::tryAccess<bool>(*pValues);
+                if(!bVal)
+                    throw IllegalArgumentException();
+                vcl::Font aNewFont(aFormat.GetFont((*ppEntries)->mnMemberId));
+                aNewFont.SetItalic(*bVal ? ITALIC_NORMAL : ITALIC_NONE);
+                aFormat.SetFont((*ppEntries)->mnMemberId, aNewFont);
+            }
+            break;
+            case HANDLE_CUSTOM_FONT_FIXED_WEIGHT :
+            case HANDLE_CUSTOM_FONT_SANS_WEIGHT  :
+            case HANDLE_CUSTOM_FONT_SERIF_WEIGHT :
+            case HANDLE_FONT_VARIABLES_WEIGHT    :
+            case HANDLE_FONT_FUNCTIONS_WEIGHT    :
+            case HANDLE_FONT_NUMBERS_WEIGHT      :
+            case HANDLE_FONT_TEXT_WEIGHT         :
+            {
+                auto bVal = o3tl::tryAccess<bool>(*pValues);
+                if(!bVal)
+                    throw IllegalArgumentException();
+                vcl::Font aNewFont(aFormat.GetFont((*ppEntries)->mnMemberId));
+                aNewFont.SetWeight(*bVal ? WEIGHT_BOLD : WEIGHT_NORMAL);
+                aFormat.SetFont((*ppEntries)->mnMemberId, aNewFont);
+            }
+            break;
+            case HANDLE_BASE_FONT_HEIGHT                   :
+            {
+                // Point!
+                sal_Int16 nVal = lcl_AnyToINT16(*pValues);
+                if(nVal < 1)
+                    throw IllegalArgumentException();
+                Size aSize = aFormat.GetBaseSize();
+                aSize.setHeight( SmPtsTo100th_mm(nVal) );
+                aFormat.SetBaseSize(aSize);
+
+                // apply base size to fonts
+                const Size aTmp( aFormat.GetBaseSize() );
+                for (sal_uInt16  i = FNT_BEGIN;  i <= FNT_END;  i++)
+                    aFormat.SetFontSize(i, aTmp);
+            }
+            break;
+            case HANDLE_RELATIVE_FONT_HEIGHT_TEXT          :
+            case HANDLE_RELATIVE_FONT_HEIGHT_INDICES       :
+            case HANDLE_RELATIVE_FONT_HEIGHT_FUNCTIONS     :
+            case HANDLE_RELATIVE_FONT_HEIGHT_OPERATORS     :
+            case HANDLE_RELATIVE_FONT_HEIGHT_LIMITS        :
+            {
+                sal_Int16 nVal = 0;
+                *pValues >>= nVal;
+                if(nVal < 1)
+                    throw IllegalArgumentException();
+                aFormat.SetRelSize((*ppEntries)->mnMemberId, nVal);
+            }
+            break;
+
+            case HANDLE_IS_TEXT_MODE                       :
+            {
+                aFormat.SetTextmode(*o3tl::doAccess<bool>(*pValues));
+            }
+            break;
+
+            case HANDLE_GREEK_CHAR_STYLE                    :
+            {
+                sal_Int16 nVal = 0;
+                *pValues >>= nVal;
+                if (nVal < 0 || nVal > 2)
+                    throw IllegalArgumentException();
+                aFormat.SetGreekCharStyle( nVal );
+            }
+            break;
+
+            case HANDLE_ALIGNMENT                          :
+            {
+                // SmHorAlign uses the same values as HorizontalAlignment
+                sal_Int16 nVal = 0;
+                *pValues >>= nVal;
+                if(nVal < 0 || nVal > 2)
+                    throw IllegalArgumentException();
+                aFormat.SetHorAlign(static_cast<SmHorAlign>(nVal));
+            }
+            break;
+
+            case HANDLE_RELATIVE_SPACING                   :
+            case HANDLE_RELATIVE_LINE_SPACING              :
+            case HANDLE_RELATIVE_ROOT_SPACING              :
+            case HANDLE_RELATIVE_INDEX_SUPERSCRIPT         :
+            case HANDLE_RELATIVE_INDEX_SUBSCRIPT           :
+            case HANDLE_RELATIVE_FRACTION_NUMERATOR_HEIGHT :
+            case HANDLE_RELATIVE_FRACTION_DENOMINATOR_DEPTH:
+            case HANDLE_RELATIVE_FRACTION_BAR_EXCESS_LENGTH:
+            case HANDLE_RELATIVE_FRACTION_BAR_LINE_WEIGHT  :
+            case HANDLE_RELATIVE_UPPER_LIMIT_DISTANCE      :
+            case HANDLE_RELATIVE_LOWER_LIMIT_DISTANCE      :
+            case HANDLE_RELATIVE_BRACKET_EXCESS_SIZE       :
+            case HANDLE_RELATIVE_BRACKET_DISTANCE          :
+            case HANDLE_RELATIVE_SCALE_BRACKET_EXCESS_SIZE :
+            case HANDLE_RELATIVE_MATRIX_LINE_SPACING       :
+            case HANDLE_RELATIVE_MATRIX_COLUMN_SPACING     :
+            case HANDLE_RELATIVE_SYMBOL_PRIMARY_HEIGHT     :
+            case HANDLE_RELATIVE_SYMBOL_MINIMUM_HEIGHT     :
+            case HANDLE_RELATIVE_OPERATOR_EXCESS_SIZE      :
+            case HANDLE_RELATIVE_OPERATOR_SPACING          :
+            case HANDLE_LEFT_MARGIN               :
+            case HANDLE_RIGHT_MARGIN              :
+            case HANDLE_TOP_MARGIN                :
+            case HANDLE_BOTTOM_MARGIN             :
+            {
+                sal_Int16 nVal = 0;
+                *pValues >>= nVal;
+                if(nVal < 0)
+                    throw IllegalArgumentException();
+                aFormat.SetDistance((*ppEntries)->mnMemberId, nVal);
+            }
+            break;
+            case HANDLE_IS_SCALE_ALL_BRACKETS              :
+                aFormat.SetScaleNormalBrackets(*o3tl::doAccess<bool>(*pValues));
+            break;
+            case HANDLE_PRINTER_NAME:
+            {
+                // embedded documents just ignore this property for now
+                if ( pDocSh->GetCreateMode() != SfxObjectCreateMode::EMBEDDED )
+                {
+                    SfxPrinter *pPrinter = pDocSh->GetPrinter ( );
+                    if (pPrinter)
+                    {
+                        OUString sPrinterName;
+                        if ( !(*pValues >>= sPrinterName) )
+                            throw IllegalArgumentException();
+
+                        if ( !sPrinterName.isEmpty() )
+                        {
+                            VclPtrInstance<SfxPrinter> pNewPrinter( pPrinter->GetOptions().Clone(), sPrinterName );
+                            if (pNewPrinter->IsKnown())
+                                pDocSh->SetPrinter ( pNewPrinter );
+                            else
+                                pNewPrinter.disposeAndClear();
+                        }
+                    }
+                }
+            }
+            break;
+            case HANDLE_PRINTER_SETUP:
+            {
+                Sequence < sal_Int8 > aSequence;
+                if ( !(*pValues >>= aSequence) )
+                    throw IllegalArgumentException();
+
+                sal_uInt32 nSize = aSequence.getLength();
+                SvMemoryStream aStream ( aSequence.getArray(), nSize, StreamMode::READ );
+                aStream.Seek ( STREAM_SEEK_TO_BEGIN );
+                static sal_uInt16 const nRange[] =
+                {
+                    SID_PRINTSIZE,       SID_PRINTSIZE,
+                    SID_PRINTZOOM,       SID_PRINTZOOM,
+                    SID_PRINTTITLE,      SID_PRINTTITLE,
+                    SID_PRINTTEXT,       SID_PRINTTEXT,
+                    SID_PRINTFRAME,      SID_PRINTFRAME,
+                    SID_NO_RIGHT_SPACES, SID_NO_RIGHT_SPACES,
+                    SID_SAVE_ONLY_USED_SYMBOLS, SID_SAVE_ONLY_USED_SYMBOLS,
+                    SID_AUTO_CLOSE_BRACKETS,    SID_AUTO_CLOSE_BRACKETS,
+                    0
+                };
+                auto pItemSet = std::make_unique<SfxItemSet>( SmDocShell::GetPool(), nRange );
+                SmModule *pp = SM_MOD();
+                pp->GetConfig()->ConfigToItemSet(*pItemSet);
+                VclPtr<SfxPrinter> pPrinter = SfxPrinter::Create ( aStream, std::move(pItemSet) );
+
+                pDocSh->SetPrinter( pPrinter );
+            }
+            break;
+            case HANDLE_SYMBOLS:
+            {
+                // this is set
+                Sequence < SymbolDescriptor > aSequence;
+                if ( !(*pValues >>= aSequence) )
+                    throw IllegalArgumentException();
+
+                SmModule *pp = SM_MOD();
+                SmSymbolManager &rManager = pp->GetSymbolManager();
+                for (const SymbolDescriptor& rDescriptor : std::as_const(aSequence))
+                {
+                    vcl::Font aFont;
+                    aFont.SetFamilyName ( rDescriptor.sFontName );
+                    aFont.SetCharSet ( static_cast < rtl_TextEncoding > (rDescriptor.nCharSet) );
+                    aFont.SetFamily ( static_cast < FontFamily > (rDescriptor.nFamily ) );
+                    aFont.SetPitch  ( static_cast < FontPitch >  (rDescriptor.nPitch ) );
+                    aFont.SetWeight ( static_cast < FontWeight > (rDescriptor.nWeight ) );
+                    aFont.SetItalic ( static_cast < FontItalic > (rDescriptor.nItalic ) );
+                    SmSym aSymbol ( rDescriptor.sName, aFont, static_cast < sal_Unicode > (rDescriptor.nCharacter),
+                                    rDescriptor.sSymbolSet );
+                    aSymbol.SetExportName ( rDescriptor.sExportName );
+                    rManager.AddOrReplaceSymbol ( aSymbol );
+                }
+            }
+            break;
+            // #i33095# Security Options
+            case HANDLE_LOAD_READONLY :
+            {
+                if ( (*pValues).getValueType() != cppu::UnoType<bool>::get() )
+                    throw IllegalArgumentException();
+                bool bReadonly = false;
+                if ( *pValues >>= bReadonly )
+                    pDocSh->SetLoadReadonly( bReadonly );
+                break;
+            }
+            case HANDLE_INTEROP_GRAB_BAG:
+                setGrabBagItem(*pValues);
+            break;
+            case HANDLE_SAVE_THUMBNAIL:
+            {
+                if ((*pValues).getValueType() != cppu::UnoType<bool>::get())
+                    throw IllegalArgumentException();
+                bool bThumbnail = false;
+                if (*pValues >>= bThumbnail)
+                    pDocSh->SetUseThumbnailSave(bThumbnail);
+            }
+            break;
+        }
+    }
+
+    pDocSh->SetFormat( aFormat );
+
+    // #i67283# since about all of the above changes are likely to change
+    // the formula size we have to recalculate the vis-area now
+    pDocSh->SetVisArea( tools::Rectangle( Point(0, 0), pDocSh->GetSize() ) );
+}
+
+void SmModel::_getPropertyValues( const PropertyMapEntry **ppEntries, Any *pValue )
+{
+    SmDocShell *pDocSh = static_cast < SmDocShell * > (GetObjectShell());
+
+    if ( nullptr == pDocSh )
+        throw UnknownPropertyException();
+
+    const SmFormat & aFormat = pDocSh->GetFormat();
+
+    for (; *ppEntries; ppEntries++, pValue++ )
+    {
+        switch ( (*ppEntries)->mnHandle )
+        {
+            case HANDLE_FORMULA:
+                *pValue <<= pDocSh->GetText();
+            break;
+            case HANDLE_FONT_NAME_VARIABLES                :
+            case HANDLE_FONT_NAME_FUNCTIONS                :
+            case HANDLE_FONT_NAME_NUMBERS                  :
+            case HANDLE_FONT_NAME_TEXT                     :
+            case HANDLE_CUSTOM_FONT_NAME_SERIF             :
+            case HANDLE_CUSTOM_FONT_NAME_SANS              :
+            case HANDLE_CUSTOM_FONT_NAME_FIXED             :
+            {
+                const SmFace &  rFace = aFormat.GetFont((*ppEntries)->mnMemberId);
+                *pValue <<= rFace.GetFamilyName();
+            }
+            break;
+            case HANDLE_CUSTOM_FONT_FIXED_POSTURE:
+            case HANDLE_CUSTOM_FONT_SANS_POSTURE :
+            case HANDLE_CUSTOM_FONT_SERIF_POSTURE:
+            case HANDLE_FONT_VARIABLES_POSTURE   :
+            case HANDLE_FONT_FUNCTIONS_POSTURE   :
+            case HANDLE_FONT_NUMBERS_POSTURE     :
+            case HANDLE_FONT_TEXT_POSTURE        :
+            {
+                const SmFace &  rFace = aFormat.GetFont((*ppEntries)->mnMemberId);
+                *pValue <<= IsItalic( rFace );
+            }
+            break;
+            case HANDLE_CUSTOM_FONT_FIXED_WEIGHT :
+            case HANDLE_CUSTOM_FONT_SANS_WEIGHT  :
+            case HANDLE_CUSTOM_FONT_SERIF_WEIGHT :
+            case HANDLE_FONT_VARIABLES_WEIGHT    :
+            case HANDLE_FONT_FUNCTIONS_WEIGHT    :
+            case HANDLE_FONT_NUMBERS_WEIGHT      :
+            case HANDLE_FONT_TEXT_WEIGHT         :
+            {
+                const SmFace &  rFace = aFormat.GetFont((*ppEntries)->mnMemberId);
+                *pValue <<= IsBold( rFace );
+            }
+            break;
+            case HANDLE_BASE_FONT_HEIGHT                   :
+            {
+                // Point!
+                *pValue <<= sal_Int16(
+                    SmRoundFraction(
+                        Sm100th_mmToPts(aFormat.GetBaseSize().Height())));
+            }
+            break;
+            case HANDLE_RELATIVE_FONT_HEIGHT_TEXT           :
+            case HANDLE_RELATIVE_FONT_HEIGHT_INDICES       :
+            case HANDLE_RELATIVE_FONT_HEIGHT_FUNCTIONS     :
+            case HANDLE_RELATIVE_FONT_HEIGHT_OPERATORS     :
+            case HANDLE_RELATIVE_FONT_HEIGHT_LIMITS        :
+                *pValue <<= static_cast<sal_Int16>(aFormat.GetRelSize((*ppEntries)->mnMemberId));
+            break;
+
+            case HANDLE_IS_TEXT_MODE                       :
+                *pValue <<= aFormat.IsTextmode();
+            break;
+
+            case HANDLE_GREEK_CHAR_STYLE                    :
+                *pValue <<= aFormat.GetGreekCharStyle();
+            break;
+
+            case HANDLE_ALIGNMENT                          :
+                // SmHorAlign uses the same values as HorizontalAlignment
+                *pValue <<= static_cast<sal_Int16>(aFormat.GetHorAlign());
+            break;
+
+            case HANDLE_RELATIVE_SPACING                   :
+            case HANDLE_RELATIVE_LINE_SPACING              :
+            case HANDLE_RELATIVE_ROOT_SPACING              :
+            case HANDLE_RELATIVE_INDEX_SUPERSCRIPT         :
+            case HANDLE_RELATIVE_INDEX_SUBSCRIPT           :
+            case HANDLE_RELATIVE_FRACTION_NUMERATOR_HEIGHT :
+            case HANDLE_RELATIVE_FRACTION_DENOMINATOR_DEPTH:
+            case HANDLE_RELATIVE_FRACTION_BAR_EXCESS_LENGTH:
+            case HANDLE_RELATIVE_FRACTION_BAR_LINE_WEIGHT  :
+            case HANDLE_RELATIVE_UPPER_LIMIT_DISTANCE      :
+            case HANDLE_RELATIVE_LOWER_LIMIT_DISTANCE      :
+            case HANDLE_RELATIVE_BRACKET_EXCESS_SIZE       :
+            case HANDLE_RELATIVE_BRACKET_DISTANCE          :
+            case HANDLE_RELATIVE_SCALE_BRACKET_EXCESS_SIZE :
+            case HANDLE_RELATIVE_MATRIX_LINE_SPACING       :
+            case HANDLE_RELATIVE_MATRIX_COLUMN_SPACING     :
+            case HANDLE_RELATIVE_SYMBOL_PRIMARY_HEIGHT     :
+            case HANDLE_RELATIVE_SYMBOL_MINIMUM_HEIGHT     :
+            case HANDLE_RELATIVE_OPERATOR_EXCESS_SIZE      :
+            case HANDLE_RELATIVE_OPERATOR_SPACING          :
+            case HANDLE_LEFT_MARGIN               :
+            case HANDLE_RIGHT_MARGIN              :
+            case HANDLE_TOP_MARGIN                :
+            case HANDLE_BOTTOM_MARGIN             :
+                *pValue <<= static_cast<sal_Int16>(aFormat.GetDistance((*ppEntries)->mnMemberId));
+            break;
+            case HANDLE_IS_SCALE_ALL_BRACKETS              :
+                *pValue <<= aFormat.IsScaleNormalBrackets();
+            break;
+            case HANDLE_PRINTER_NAME:
+            {
+                SfxPrinter *pPrinter = pDocSh->GetPrinter ( );
+                *pValue <<= pPrinter ? pPrinter->GetName() : OUString();
+            }
+            break;
+            case HANDLE_PRINTER_SETUP:
+            {
+                SfxPrinter *pPrinter = pDocSh->GetPrinter ();
+                if (pPrinter)
+                {
+                    SvMemoryStream aStream;
+                    pPrinter->Store( aStream );
+                    sal_uInt32 nSize = aStream.TellEnd();
+                    aStream.Seek ( STREAM_SEEK_TO_BEGIN );
+                    Sequence < sal_Int8 > aSequence ( nSize );
+                    aStream.ReadBytes(aSequence.getArray(), nSize);
+                    *pValue <<= aSequence;
+                }
+            }
+            break;
+            case HANDLE_SYMBOLS:
+            case HANDLE_USED_SYMBOLS:
+            {
+                const bool bUsedSymbolsOnly = (*ppEntries)->mnHandle == HANDLE_USED_SYMBOLS;
+                const std::set< OUString > &rUsedSymbols = pDocSh->GetUsedSymbols();
+
+                // this is get
+                SmModule *pp = SM_MOD();
+                const SmSymbolManager &rManager = pp->GetSymbolManager();
+                vector < const SmSym * > aVector;
+
+                const SymbolPtrVec_t aSymbols( rManager.GetSymbols() );
+                for (const SmSym* pSymbol : aSymbols)
+                {
+                    if (pSymbol && !pSymbol->IsPredefined() &&
+                        (!bUsedSymbolsOnly ||
+                         rUsedSymbols.find( pSymbol->GetName() ) != rUsedSymbols.end()))
+                        aVector.push_back ( pSymbol );
+                }
+                Sequence < SymbolDescriptor > aSequence ( aVector.size() );
+                SymbolDescriptor * pDescriptor = aSequence.getArray();
+
+                for (const SmSym* pSymbol : aVector)
+                {
+                    pDescriptor->sName = pSymbol->GetName();
+                    pDescriptor->sExportName = pSymbol->GetExportName();
+                    pDescriptor->sSymbolSet = pSymbol->GetSymbolSetName();
+                    pDescriptor->nCharacter = static_cast < sal_Int32 > (pSymbol->GetCharacter());
+
+                    vcl::Font rFont = pSymbol->GetFace();
+                    pDescriptor->sFontName = rFont.GetFamilyName();
+                    pDescriptor->nCharSet  = sal::static_int_cast< sal_Int16 >(rFont.GetCharSet());
+                    pDescriptor->nFamily   = sal::static_int_cast< sal_Int16 >(rFont.GetFamilyType());
+                    pDescriptor->nPitch    = sal::static_int_cast< sal_Int16 >(rFont.GetPitch());
+                    pDescriptor->nWeight   = sal::static_int_cast< sal_Int16 >(rFont.GetWeight());
+                    pDescriptor->nItalic   = sal::static_int_cast< sal_Int16 >(rFont.GetItalic());
+                    pDescriptor++;
+                }
+                *pValue <<= aSequence;
+            }
+            break;
+            case HANDLE_BASIC_LIBRARIES:
+                *pValue <<= pDocSh->GetBasicContainer();
+            break;
+            case HANDLE_DIALOG_LIBRARIES:
+                *pValue <<= pDocSh->GetDialogContainer();
+            break;
+            case HANDLE_RUNTIME_UID:
+                *pValue <<= getRuntimeUID();
+            break;
+            // #i33095# Security Options
+            case HANDLE_LOAD_READONLY :
+            {
+                *pValue <<= pDocSh->IsLoadReadonly();
+                break;
+            }
+            // #i972#
+            case HANDLE_BASELINE:
+            {
+                if ( !pDocSh->GetFormulaTree() )
+                    pDocSh->Parse();
+                if ( pDocSh->GetFormulaTree() )
+                {
+                    pDocSh->ArrangeFormula();
+
+                    *pValue <<= static_cast<sal_Int32>( pDocSh->GetFormulaTree()->GetFormulaBaseline() );
+                }
+                break;
+            }
+            case HANDLE_INTEROP_GRAB_BAG:
+                getGrabBagItem(*pValue);
+            break;
+            case HANDLE_SAVE_THUMBNAIL:
+            {
+                *pValue <<= pDocSh->IsUseThumbnailSave();
+            }
+            break;
+        }
+    }
+}
+
+
+sal_Int32 SAL_CALL SmModel::getRendererCount(
+        const uno::Any& /*rSelection*/,
+        const uno::Sequence< beans::PropertyValue >& /*xOptions*/ )
+{
+    return 1;
+}
+
+
+static Size lcl_GuessPaperSize()
+{
+    Size aRes;
+    const LocaleDataWrapper& rLocWrp( AllSettings().GetLocaleDataWrapper() );
+    if( MeasurementSystem::Metric == rLocWrp.getMeasurementSystemEnum() )
+    {
+        // in 100th mm
+        PaperInfo aInfo( PAPER_A4 );
+        aRes.setWidth( aInfo.getWidth() );
+        aRes.setHeight( aInfo.getHeight() );
+    }
+    else
+    {
+        // in 100th mm
+        PaperInfo aInfo( PAPER_LETTER );
+        aRes.setWidth( aInfo.getWidth() );
+        aRes.setHeight( aInfo.getHeight() );
+    }
+    return aRes;
+}
+
+uno::Sequence< beans::PropertyValue > SAL_CALL SmModel::getRenderer(
+        sal_Int32 nRenderer,
+        const uno::Any& /*rSelection*/,
+        const uno::Sequence< beans::PropertyValue >& /*rxOptions*/ )
+{
+    SolarMutexGuard aGuard;
+
+    if (0 != nRenderer)
+        throw IllegalArgumentException();
+
+    SmDocShell *pDocSh = static_cast < SmDocShell * >( GetObjectShell() );
+    if (!pDocSh)
+        throw RuntimeException();
+
+    SmPrinterAccess aPrinterAccess( *pDocSh );
+    Printer *pPrinter = aPrinterAccess.GetPrinter();
+    Size    aPrtPaperSize ( pPrinter->GetPaperSize() );
+
+    // if paper size is 0 (usually if no 'real' printer is found),
+    // guess the paper size
+    if (aPrtPaperSize.IsEmpty())
+        aPrtPaperSize = lcl_GuessPaperSize();
+    awt::Size   aPageSize( aPrtPaperSize.Width(), aPrtPaperSize.Height() );
+
+    uno::Sequence< beans::PropertyValue > aRenderer(1);
+    PropertyValue  &rValue = aRenderer.getArray()[0];
+    rValue.Name  = "PageSize";
+    rValue.Value <<= aPageSize;
+
+    if (!m_pPrintUIOptions)
+        m_pPrintUIOptions.reset(new SmPrintUIOptions);
+    m_pPrintUIOptions->appendPrintUIOptions( aRenderer );
+
+    return aRenderer;
+}
+
+void SAL_CALL SmModel::render(
+        sal_Int32 nRenderer,
+        const uno::Any& rSelection,
+        const uno::Sequence< beans::PropertyValue >& rxOptions )
+{
+    SolarMutexGuard aGuard;
+
+    if (0 != nRenderer)
+        throw IllegalArgumentException();
+
+    SmDocShell *pDocSh = static_cast < SmDocShell * >( GetObjectShell() );
+    if (!pDocSh)
+        throw RuntimeException();
+
+    // get device to be rendered in
+    uno::Reference< awt::XDevice >  xRenderDevice;
+    for (const auto& rxOption : rxOptions)
+    {
+        if( rxOption.Name == "RenderDevice" )
+            rxOption.Value >>= xRenderDevice;
+    }
+
+    if (!xRenderDevice.is())
+        return;
+
+    VCLXDevice*   pDevice = comphelper::getUnoTunnelImplementation<VCLXDevice>( xRenderDevice );
+    VclPtr< OutputDevice> pOut = pDevice ? pDevice->GetOutputDevice()
+                                         : VclPtr< OutputDevice >();
+    if (!pOut)
+        throw RuntimeException();
+
+    pOut->SetMapMode(MapMode(MapUnit::Map100thMM));
+
+    uno::Reference< frame::XModel > xModel;
+    rSelection >>= xModel;
+    if (xModel != pDocSh->GetModel())
+        return;
+
+    //!! when called via API we may not have an active view
+    //!! thus we go and look for a view that can be used.
+    SfxViewShell* pViewSh = SfxViewShell::GetFirst( false /* search non-visible views as well*/, checkSfxViewShell<SmViewShell> );
+    while (pViewSh && pViewSh->GetObjectShell() != pDocSh)
+        pViewSh = SfxViewShell::GetNext( *pViewSh, false /* search non-visible views as well*/, checkSfxViewShell<SmViewShell> );
+    SmViewShell *pView = dynamic_cast< SmViewShell *>( pViewSh );
+    SAL_WARN_IF( !pView, "starmath", "SmModel::render : no SmViewShell found" );
+
+    if (!pView)
+        return;
+
+    SmPrinterAccess aPrinterAccess( *pDocSh );
+    Printer *pPrinter = aPrinterAccess.GetPrinter();
+
+    Size    aPrtPaperSize ( pPrinter->GetPaperSize() );
+    Size    aOutputSize   ( pPrinter->GetOutputSize() );
+    Point   aPrtPageOffset( pPrinter->GetPageOffset() );
+
+    // no real printer ??
+    if (aPrtPaperSize.IsEmpty())
+    {
+        aPrtPaperSize = lcl_GuessPaperSize();
+        // factors from Windows DIN A4
+        aOutputSize    = Size( static_cast<long>(aPrtPaperSize.Width()  * 0.941),
+                               static_cast<long>(aPrtPaperSize.Height() * 0.961));
+        aPrtPageOffset = Point( static_cast<long>(aPrtPaperSize.Width()  * 0.0250),
+                                static_cast<long>(aPrtPaperSize.Height() * 0.0214));
+    }
+    tools::Rectangle OutputRect( Point(), aOutputSize );
+
+
+    // set minimum top and bottom border
+    if (aPrtPageOffset.Y() < 2000)
+        OutputRect.AdjustTop(2000 - aPrtPageOffset.Y() );
+    if ((aPrtPaperSize.Height() - (aPrtPageOffset.Y() + OutputRect.Bottom())) < 2000)
+        OutputRect.AdjustBottom( -(2000 - (aPrtPaperSize.Height() -
+                                    (aPrtPageOffset.Y() + OutputRect.Bottom()))) );
+
+    // set minimum left and right border
+    if (aPrtPageOffset.X() < 2500)
+        OutputRect.AdjustLeft(2500 - aPrtPageOffset.X() );
+    if ((aPrtPaperSize.Width() - (aPrtPageOffset.X() + OutputRect.Right())) < 1500)
+        OutputRect.AdjustRight( -(1500 - (aPrtPaperSize.Width() -
+                                    (aPrtPageOffset.X() + OutputRect.Right()))) );
+
+    if (!m_pPrintUIOptions)
+        m_pPrintUIOptions.reset(new SmPrintUIOptions);
+    m_pPrintUIOptions->processProperties( rxOptions );
+
+    pView->Impl_Print( *pOut, *m_pPrintUIOptions, OutputRect );
+
+    // release SmPrintUIOptions when everything is done.
+    // That way, when SmPrintUIOptions is needed again it will read the latest configuration settings in its c-tor.
+    if (m_pPrintUIOptions->getBoolValue( "IsLastPage" ))
+    {
+        m_pPrintUIOptions.reset();
+    }
+}
+
+void SAL_CALL SmModel::setParent( const uno::Reference< uno::XInterface >& xParent)
+{
+    SolarMutexGuard aGuard;
+    SfxBaseModel::setParent( xParent );
+    uno::Reference< lang::XUnoTunnel > xParentTunnel( xParent, uno::UNO_QUERY );
+    if ( xParentTunnel.is() )
+    {
+        SvGlobalName aSfxIdent( SFX_GLOBAL_CLASSID );
+        SfxObjectShell* pDoc = reinterpret_cast<SfxObjectShell *>(xParentTunnel->getSomething(
+                                        aSfxIdent.GetByteSequence() ) );
+        if ( pDoc )
+            GetObjectShell()->OnDocumentPrinterChanged( pDoc->GetDocumentPrinter() );
+    }
+}
+
+void SmModel::writeFormulaOoxml(
+        ::sax_fastparser::FSHelperPtr const pSerializer,
+        oox::core::OoxmlVersion const version,
+        oox::drawingml::DocumentType const documentType, sal_Int8 nAlign)
+{
+    static_cast<SmDocShell*>(GetObjectShell())->writeFormulaOoxml(pSerializer, version, documentType, nAlign);
+}
+
+void SmModel::writeFormulaRtf(OStringBuffer& rBuffer, rtl_TextEncoding nEncoding)
+{
+    static_cast<SmDocShell*>(GetObjectShell())->writeFormulaRtf(rBuffer, nEncoding);
+}
+
+void SmModel::readFormulaOoxml( oox::formulaimport::XmlStream& stream )
+{
+    static_cast< SmDocShell* >( GetObjectShell())->readFormulaOoxml( stream );
+}
+
+Size SmModel::getFormulaSize() const
+{
+    return static_cast< SmDocShell* >( GetObjectShell())->GetSize();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/utility.cxx b/starmath/source/utility.cxx
new file mode 100644
index 000000000..a842c7ed6
--- /dev/null
+++ b/starmath/source/utility.cxx
@@ -0,0 +1,240 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <strings.hrc>
+#include <smmod.hxx>
+#include <utility.hxx>
+#include <dialog.hxx>
+#include <view.hxx>
+
+// return pointer to active SmViewShell, if this is not possible
+// return 0 instead.
+//!! Since this method is based on the current focus it is somewhat
+//!! unreliable and may return unexpected 0 pointers!
+SmViewShell * SmGetActiveView()
+{
+    SfxViewShell *pView = SfxViewShell::Current();
+    return  dynamic_cast<SmViewShell*>( pView);
+}
+
+
+/**************************************************************************/
+
+void SmFontPickList::Clear()
+{
+    aFontVec.clear();
+}
+
+SmFontPickList& SmFontPickList::operator = (const SmFontPickList& rList)
+{
+    Clear();
+    nMaxItems = rList.nMaxItems;
+    for (const auto & nPos : rList.aFontVec)
+        aFontVec.push_back( nPos );
+
+    return *this;
+}
+
+vcl::Font SmFontPickList::Get(sal_uInt16 nPos) const
+{
+    return nPos < aFontVec.size() ? aFontVec[nPos] : vcl::Font();
+}
+
+namespace {
+
+bool lcl_CompareItem(const vcl::Font & rFirstFont, const vcl::Font & rSecondFont)
+{
+  return rFirstFont.GetFamilyName() == rSecondFont.GetFamilyName() &&
+         rFirstFont.GetFamilyType() == rSecondFont.GetFamilyType() &&
+         rFirstFont.GetCharSet()    == rSecondFont.GetCharSet()    &&
+         rFirstFont.GetWeight()     == rSecondFont.GetWeight()     &&
+         rFirstFont.GetItalic()     == rSecondFont.GetItalic();
+}
+
+OUString lcl_GetStringItem(const vcl::Font &rFont)
+{
+    OUStringBuffer aString(rFont.GetFamilyName());
+
+    if (IsItalic( rFont ))
+    {
+        aString.append(", ");
+        aString.append(SmResId(RID_FONTITALIC));
+    }
+    if (IsBold( rFont ))
+    {
+        aString.append(", ");
+        aString.append(SmResId(RID_FONTBOLD));
+    }
+
+    return aString.makeStringAndClear();
+}
+
+}
+
+void SmFontPickList::Insert(const vcl::Font &rFont)
+{
+    for (size_t nPos = 0; nPos < aFontVec.size(); nPos++)
+        if (lcl_CompareItem( aFontVec[nPos], rFont))
+        {
+            aFontVec.erase( aFontVec.begin() + nPos );
+            break;
+        }
+
+    aFontVec.push_front( rFont );
+
+    if (aFontVec.size() > nMaxItems)
+    {
+        aFontVec.pop_back();
+    }
+}
+
+void SmFontPickList::ReadFrom(const SmFontDialog& rDialog)
+{
+    Insert(rDialog.GetFont());
+}
+
+void SmFontPickList::WriteTo(SmFontDialog& rDialog) const
+{
+    rDialog.SetFont(Get());
+}
+
+
+/**************************************************************************/
+
+SmFontPickListBox::SmFontPickListBox(std::unique_ptr<weld::ComboBox> pWidget)
+    : SmFontPickList(4)
+    , m_xWidget(std::move(pWidget))
+{
+    m_xWidget->connect_changed(LINK(this, SmFontPickListBox, SelectHdl));
+}
+
+IMPL_LINK_NOARG(SmFontPickListBox, SelectHdl, weld::ComboBox&, void)
+{
+    OUString aString;
+
+    const int nPos = m_xWidget->get_active();
+    if (nPos != 0)
+    {
+        SmFontPickList::Insert(Get(nPos));
+        aString = m_xWidget->get_text(nPos);
+        m_xWidget->remove(nPos);
+        m_xWidget->insert_text(0, aString);
+    }
+
+    m_xWidget->set_active(0);
+}
+
+SmFontPickListBox& SmFontPickListBox::operator=(const SmFontPickList& rList)
+{
+    *static_cast<SmFontPickList *>(this) = rList;
+
+    for (decltype(aFontVec)::size_type nPos = 0; nPos < aFontVec.size(); nPos++)
+        m_xWidget->insert_text(nPos, lcl_GetStringItem(aFontVec[nPos]));
+
+    if (!aFontVec.empty())
+        m_xWidget->set_active_text(lcl_GetStringItem(aFontVec.front()));
+
+    return *this;
+}
+
+void SmFontPickListBox::Insert(const vcl::Font &rFont)
+{
+    SmFontPickList::Insert(rFont);
+
+    OUString aEntry(lcl_GetStringItem(aFontVec.front()));
+    int nPos = m_xWidget->find_text(aEntry);
+    if (nPos != -1)
+        m_xWidget->remove(nPos);
+    m_xWidget->insert_text(0, aEntry);
+    m_xWidget->set_active(0);
+
+    while (m_xWidget->get_count() > nMaxItems)
+        m_xWidget->remove(m_xWidget->get_count() - 1);
+}
+
+bool IsItalic( const vcl::Font &rFont )
+{
+    FontItalic eItalic = rFont.GetItalic();
+    // the code below leaves only _NONE and _DONTKNOW as not italic
+    return eItalic == ITALIC_OBLIQUE  ||  eItalic == ITALIC_NORMAL;
+}
+
+
+bool IsBold( const vcl::Font &rFont )
+{
+    FontWeight eWeight = rFont.GetWeight();
+    return eWeight > WEIGHT_NORMAL;
+}
+
+
+void SmFace::Impl_Init()
+{
+    SetSize( GetFontSize() );
+    SetTransparent( true );
+    SetAlignment( ALIGN_BASELINE );
+    SetColor( COL_AUTO );
+}
+
+void SmFace::SetSize(const Size& rSize)
+{
+    Size  aSize (rSize);
+
+    // check the requested size against minimum value
+    static int const    nMinVal = SmPtsTo100th_mm(2);
+
+    if (aSize.Height() < nMinVal)
+        aSize.setHeight( nMinVal );
+
+    //! we don't force a maximum value here because this may prevent eg the
+    //! parentheses in "left ( ... right )" from matching up with large
+    //! bodies (eg stack{...} with many entries).
+    //! Of course this is holds only if characters are used and not polygons.
+
+    Font::SetFontSize(aSize);
+}
+
+
+long SmFace::GetBorderWidth() const
+{
+    if (nBorderWidth < 0)
+        return GetDefaultBorderWidth();
+    else
+        return nBorderWidth;
+}
+
+SmFace & SmFace::operator = (const SmFace &rFace)
+{
+    Font::operator = (rFace);
+    nBorderWidth = -1;
+    return *this;
+}
+
+
+SmFace & operator *= (SmFace &rFace, const Fraction &rFrac)
+    // scales the width and height of 'rFace' by 'rFrac' and returns a
+    // reference to 'rFace'.
+    // It's main use is to make scaling fonts look easier.
+{   const Size &rFaceSize = rFace.GetFontSize();
+
+    rFace.SetSize(Size(long(rFaceSize.Width() * rFrac),
+                       long(rFaceSize.Height() * rFrac)));
+    return rFace;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/view.cxx b/starmath/source/view.cxx
new file mode 100644
index 000000000..19274324a
--- /dev/null
+++ b/starmath/source/view.cxx
@@ -0,0 +1,2034 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/frame/XFramesSupplier.hpp>
+#include <com/sun/star/container/XChild.hpp>
+
+#include <comphelper/processfactory.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <comphelper/storagehelper.hxx>
+#include <comphelper/string.hxx>
+#include <i18nutil/unicode.hxx>
+#include <sfx2/dispatch.hxx>
+#include <sfx2/docfile.hxx>
+#include <sfx2/docfilt.hxx>
+#include <sfx2/docinsert.hxx>
+#include <sfx2/filedlghelper.hxx>
+#include <sfx2/infobar.hxx>
+#include <sfx2/msg.hxx>
+#include <sfx2/objface.hxx>
+#include <sfx2/printer.hxx>
+#include <sfx2/request.hxx>
+#include <sfx2/viewfac.hxx>
+#include <svl/eitem.hxx>
+#include <svl/itemset.hxx>
+#include <svl/poolitem.hxx>
+#include <svl/stritem.hxx>
+#include <vcl/transfer.hxx>
+#include <svtools/colorcfg.hxx>
+#include <svtools/miscopt.hxx>
+#include <svl/whiter.hxx>
+#include <svx/zoomslideritem.hxx>
+#include <editeng/editeng.hxx>
+#include <editeng/editview.hxx>
+#include <svx/svxdlg.hxx>
+#include <sfx2/zoomitem.hxx>
+#include <vcl/commandevent.hxx>
+#include <vcl/event.hxx>
+#include <vcl/decoview.hxx>
+#include <vcl/menu.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/virdev.hxx>
+#include <sal/log.hxx>
+#include <tools/svborder.hxx>
+
+#include <unotools/streamwrap.hxx>
+
+#include <unomodel.hxx>
+#include <view.hxx>
+#include "cfgitem.hxx"
+#include <dialog.hxx>
+#include <document.hxx>
+#include <starmath.hrc>
+#include <strings.hrc>
+#include <smmod.hxx>
+#include "mathmlimport.hxx"
+#include <cursor.hxx>
+#include "accessibility.hxx"
+#include <ElementsDockingWindow.hxx>
+#include <helpids.h>
+#include <cassert>
+#include <memory>
+
+#define MINZOOM sal_uInt16(25)
+#define MAXZOOM sal_uInt16(800)
+
+// space around the edit window, in pixels
+// fdo#69111: Increased border on the top so that the window is
+// easier to tear off.
+#define CMD_BOX_PADDING 4
+#define CMD_BOX_PADDING_TOP 10
+
+#define ShellClass_SmViewShell
+#include <smslots.hxx>
+
+using namespace css;
+using namespace css::accessibility;
+using namespace css::uno;
+
+SmGraphicWindow::SmGraphicWindow(SmViewShell* pShell)
+    : ScrollableWindow(&pShell->GetViewFrame()->GetWindow())
+    , pViewShell(pShell)
+    , nZoom(100)
+{
+    assert(pViewShell);
+    // docking windows are usually hidden (often already done in the
+    // resource) and will be shown by the sfx framework.
+    Hide();
+
+    const Fraction aFraction(1, 1);
+    SetMapMode(MapMode(MapUnit::Map100thMM, Point(), aFraction, aFraction));
+
+    SetTotalSize();
+
+    SetHelpId(HID_SMA_WIN_DOCUMENT);
+
+    ShowLine(false);
+    CaretBlinkInit();
+}
+
+SmGraphicWindow::~SmGraphicWindow()
+{
+    disposeOnce();
+}
+
+void SmGraphicWindow::dispose()
+{
+    if (mxAccessible.is())
+        mxAccessible->ClearWin();    // make Accessible nonfunctional
+    mxAccessible.clear();
+    CaretBlinkStop();
+    ScrollableWindow::dispose();
+}
+
+void SmGraphicWindow::StateChanged(StateChangedType eType)
+{
+    if (eType == StateChangedType::InitShow)
+        Show();
+    ScrollableWindow::StateChanged(eType);
+}
+
+void SmGraphicWindow::MouseButtonDown(const MouseEvent& rMEvt)
+{
+    ScrollableWindow::MouseButtonDown(rMEvt);
+
+    GrabFocus();
+
+    // set formula-cursor and selection of edit window according to the
+    // position clicked at
+
+    SAL_WARN_IF( rMEvt.GetClicks() == 0, "starmath", "0 clicks" );
+    if ( !rMEvt.IsLeft() )
+        return;
+
+    // get click position relative to formula
+    Point  aPos (PixelToLogic(rMEvt.GetPosPixel())
+                 - GetFormulaDrawPos());
+
+    const SmNode *pTree = pViewShell->GetDoc()->GetFormulaTree();
+    if (!pTree)
+        return;
+
+    if (IsInlineEditEnabled()) {
+        pViewShell->GetDoc()->GetCursor().MoveTo(this, aPos, !rMEvt.IsShift());
+        return;
+    }
+    const SmNode *pNode = nullptr;
+    // if it was clicked inside the formula then get the appropriate node
+    if (pTree->OrientedDist(aPos) <= 0)
+        pNode = pTree->FindRectClosestTo(aPos);
+
+    if (!pNode)
+        return;
+
+    SmEditWindow  *pEdit = pViewShell->GetEditWindow();
+    if (!pEdit)
+        return;
+    const SmToken  aToken (pNode->GetToken());
+
+    // set selection to the beginning of the token
+    ESelection  aSel (aToken.nRow - 1, aToken.nCol - 1);
+
+    if (rMEvt.GetClicks() != 1 || aToken.eType == TPLACE)
+        aSel.nEndPos = aSel.nEndPos + sal::static_int_cast< sal_uInt16 >(aToken.aText.getLength());
+
+    pEdit->SetSelection(aSel);
+    SetCursor(pNode);
+
+    // allow for immediate editing and
+    //! implicitly synchronize the cursor position mark in this window
+    pEdit->GrabFocus();
+}
+
+void SmGraphicWindow::MouseMove(const MouseEvent &rMEvt)
+{
+    ScrollableWindow::MouseMove(rMEvt);
+
+    if (rMEvt.IsLeft() && IsInlineEditEnabled())
+    {
+        Point aPos(PixelToLogic(rMEvt.GetPosPixel()) - GetFormulaDrawPos());
+        pViewShell->GetDoc()->GetCursor().MoveTo(this, aPos, false);
+
+        CaretBlinkStop();
+        SetIsCursorVisible(true);
+        CaretBlinkStart();
+        RepaintViewShellDoc();
+    }
+}
+
+bool SmGraphicWindow::IsInlineEditEnabled() const
+{
+    return pViewShell->IsInlineEditEnabled();
+}
+
+void SmGraphicWindow::GetFocus()
+{
+    if (!IsInlineEditEnabled())
+        return;
+    if (pViewShell->GetEditWindow())
+        pViewShell->GetEditWindow()->Flush();
+    //Let view shell know what insertions should be done in visual editor
+    pViewShell->SetInsertIntoEditWindow(false);
+    SetIsCursorVisible(true);
+    ShowLine(true);
+    CaretBlinkStart();
+    RepaintViewShellDoc();
+}
+
+void SmGraphicWindow::LoseFocus()
+{
+    ScrollableWindow::LoseFocus();
+    if (mxAccessible.is())
+    {
+        uno::Any aOldValue, aNewValue;
+        aOldValue <<= AccessibleStateType::FOCUSED;
+        // aNewValue remains empty
+        mxAccessible->LaunchEvent( AccessibleEventId::STATE_CHANGED,
+                aOldValue, aNewValue );
+    }
+    if (!IsInlineEditEnabled())
+        return;
+    SetIsCursorVisible(false);
+    ShowLine(false);
+    CaretBlinkStop();
+    RepaintViewShellDoc();
+}
+
+void SmGraphicWindow::RepaintViewShellDoc()
+{
+    SmDocShell* pDoc = pViewShell->GetDoc();
+    if (pDoc)
+        pDoc->Repaint();
+}
+
+IMPL_LINK_NOARG(SmGraphicWindow, CaretBlinkTimerHdl, Timer *, void)
+{
+    if (IsCursorVisible())
+        SetIsCursorVisible(false);
+    else
+        SetIsCursorVisible(true);
+
+    RepaintViewShellDoc();
+}
+
+void SmGraphicWindow::CaretBlinkInit()
+{
+    aCaretBlinkTimer.SetInvokeHandler(LINK(this, SmGraphicWindow, CaretBlinkTimerHdl));
+    aCaretBlinkTimer.SetTimeout( ScrollableWindow::GetSettings().GetStyleSettings().GetCursorBlinkTime() );
+}
+
+void SmGraphicWindow::CaretBlinkStart()
+{
+    if (!IsInlineEditEnabled())
+        return;
+    if (aCaretBlinkTimer.GetTimeout() != STYLE_CURSOR_NOBLINKTIME)
+        aCaretBlinkTimer.Start();
+}
+
+void SmGraphicWindow::CaretBlinkStop()
+{
+    if (!IsInlineEditEnabled())
+        return;
+    aCaretBlinkTimer.Stop();
+}
+
+void SmGraphicWindow::ShowCursor(bool bShow)
+    // shows or hides the formula-cursor depending on 'bShow' is true or not
+{
+    if (IsInlineEditEnabled())
+        return;
+
+    bool  bInvert = bShow != IsCursorVisible();
+
+    if (bInvert)
+        InvertTracking(aCursorRect, ShowTrackFlags::Small | ShowTrackFlags::TrackWindow);
+
+    SetIsCursorVisible(bShow);
+}
+
+void SmGraphicWindow::ShowLine(bool bShow)
+{
+    if (!IsInlineEditEnabled())
+        return;
+
+    bIsLineVisible = bShow;
+}
+
+void SmGraphicWindow::SetCursor(const SmNode *pNode)
+{
+    if (IsInlineEditEnabled())
+        return;
+
+    const SmNode *pTree = pViewShell->GetDoc()->GetFormulaTree();
+
+    // get appropriate rectangle
+    Point aOffset (pNode->GetTopLeft() - pTree->GetTopLeft()),
+          aTLPos  (GetFormulaDrawPos() + aOffset);
+    aTLPos.AdjustX( -(pNode->GetItalicLeftSpace()) );
+    Size  aSize   (pNode->GetItalicSize());
+
+    SetCursor(tools::Rectangle(aTLPos, aSize));
+}
+
+void SmGraphicWindow::SetCursor(const tools::Rectangle &rRect)
+    // sets cursor to new position (rectangle) 'rRect'.
+    // The old cursor will be removed, and the new one will be shown if
+    // that is activated in the ConfigItem
+{
+    if (IsInlineEditEnabled())
+        return;
+
+    SmModule *pp = SM_MOD();
+
+    if (IsCursorVisible())
+        ShowCursor(false);      // clean up remainings of old cursor
+    aCursorRect = rRect;
+    if (pp->GetConfig()->IsShowFormulaCursor())
+        ShowCursor(true);       // draw new cursor
+}
+
+const SmNode * SmGraphicWindow::SetCursorPos(sal_uInt16 nRow, sal_uInt16 nCol)
+    // looks for a VISIBLE node in the formula tree with its token at
+    // (or around) the position 'nRow', 'nCol' in the edit window
+    // (row and column numbering starts with 1 there!).
+    // If there is such a node the formula-cursor is set to cover that nodes
+    // rectangle. If not the formula-cursor will be hidden.
+    // In any case the search result is being returned.
+{
+    if (IsInlineEditEnabled())
+        return nullptr;
+
+    // find visible node with token at nRow, nCol
+    const SmNode *pTree = pViewShell->GetDoc()->GetFormulaTree(),
+                 *pNode = nullptr;
+    if (pTree)
+        pNode = pTree->FindTokenAt(nRow, nCol);
+
+    if (pNode)
+        SetCursor(pNode);
+    else
+        ShowCursor(false);
+
+    return pNode;
+}
+
+void SmGraphicWindow::ApplySettings(vcl::RenderContext& rRenderContext)
+{
+    rRenderContext.SetBackground(SM_MOD()->GetColorConfig().GetColorValue(svtools::DOCCOLOR).nColor);
+}
+
+void SmGraphicWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
+{
+    SmDocShell& rDoc = *pViewShell->GetDoc();
+    Point aPoint;
+
+    rDoc.DrawFormula(rRenderContext, aPoint, true);  //! modifies aPoint to be the topleft
+                                //! corner of the formula
+    aFormulaDrawPos = aPoint;
+    if (IsInlineEditEnabled())
+    {
+        //Draw cursor if any...
+        if (pViewShell->GetDoc()->HasCursor() && IsLineVisible())
+            pViewShell->GetDoc()->GetCursor().Draw(rRenderContext, aPoint, IsCursorVisible());
+    }
+    else
+    {
+        SetIsCursorVisible(false);  // (old) cursor must be drawn again
+
+        const SmEditWindow* pEdit = pViewShell->GetEditWindow();
+        if (pEdit)
+        {   // get new position for formula-cursor (for possible altered formula)
+            sal_Int32  nRow;
+            sal_uInt16 nCol;
+            SmGetLeftSelectionPart(pEdit->GetSelection(), nRow, nCol);
+            nRow++;
+            nCol++;
+            const SmNode *pFound = SetCursorPos(static_cast<sal_uInt16>(nRow), nCol);
+
+            SmModule *pp = SM_MOD();
+            if (pFound && pp->GetConfig()->IsShowFormulaCursor())
+                ShowCursor(true);
+        }
+    }
+}
+
+
+void SmGraphicWindow::SetTotalSize ()
+{
+    SmDocShell &rDoc = *pViewShell->GetDoc();
+    const Size aTmp( PixelToLogic( LogicToPixel( rDoc.GetSize() )));
+    if ( aTmp != ScrollableWindow::GetTotalSize() )
+        ScrollableWindow::SetTotalSize( aTmp );
+}
+
+void SmGraphicWindow::KeyInput(const KeyEvent& rKEvt)
+{
+    if (!IsInlineEditEnabled()) {
+        if (! (GetView() && GetView()->KeyInput(rKEvt)) )
+            ScrollableWindow::KeyInput(rKEvt);
+        return;
+    }
+
+    SmCursor& rCursor = pViewShell->GetDoc()->GetCursor();
+    KeyFuncType eFunc = rKEvt.GetKeyCode().GetFunction();
+    if (eFunc == KeyFuncType::COPY)
+        rCursor.Copy();
+    else if (eFunc == KeyFuncType::CUT)
+        rCursor.Cut();
+    else if (eFunc == KeyFuncType::PASTE)
+        rCursor.Paste();
+    else {
+    sal_uInt16 nCode = rKEvt.GetKeyCode().GetCode();
+    switch(nCode)
+    {
+        case KEY_LEFT:
+        {
+            rCursor.Move(this, MoveLeft, !rKEvt.GetKeyCode().IsShift());
+        }break;
+        case KEY_RIGHT:
+        {
+            rCursor.Move(this, MoveRight, !rKEvt.GetKeyCode().IsShift());
+        }break;
+        case KEY_UP:
+        {
+            rCursor.Move(this, MoveUp, !rKEvt.GetKeyCode().IsShift());
+        }break;
+        case KEY_DOWN:
+        {
+            rCursor.Move(this, MoveDown, !rKEvt.GetKeyCode().IsShift());
+        }break;
+        case KEY_RETURN:
+        {
+            if(!rKEvt.GetKeyCode().IsShift())
+                rCursor.InsertRow();
+        }break;
+        case KEY_DELETE:
+        {
+            if(!rCursor.HasSelection()){
+                rCursor.Move(this, MoveRight, false);
+                if(rCursor.HasComplexSelection()) break;
+            }
+            rCursor.Delete();
+        }break;
+        case KEY_BACKSPACE:
+        {
+            rCursor.DeletePrev(this);
+        }break;
+        case KEY_ADD:
+            rCursor.InsertElement(PlusElement);
+            break;
+        case KEY_SUBTRACT:
+            if(rKEvt.GetKeyCode().IsShift())
+                rCursor.InsertSubSup(RSUB);
+            else
+                rCursor.InsertElement(MinusElement);
+            break;
+        case KEY_MULTIPLY:
+            rCursor.InsertElement(CDotElement);
+            break;
+        case KEY_DIVIDE:
+            rCursor.InsertFraction();
+            break;
+        case KEY_LESS:
+            rCursor.InsertElement(LessThanElement);
+            break;
+        case KEY_GREATER:
+            rCursor.InsertElement(GreaterThanElement);
+            break;
+        case KEY_EQUAL:
+            rCursor.InsertElement(EqualElement);
+            break;
+        default:
+        {
+            sal_Unicode code = rKEvt.GetCharCode();
+            SmBraceNode* pBraceNode = nullptr;
+
+            if(code == ' ') {
+                rCursor.InsertElement(BlankElement);
+            }else if(code == '^') {
+                rCursor.InsertSubSup(RSUP);
+            }else if(code == '(') {
+                rCursor.InsertBrackets(SmBracketType::Round);
+            }else if(code == '[') {
+                rCursor.InsertBrackets(SmBracketType::Square);
+            }else if(code == '{') {
+                rCursor.InsertBrackets(SmBracketType::Curly);
+            }else if(code == '!') {
+                rCursor.InsertElement(FactorialElement);
+            }else if(code == '%') {
+                rCursor.InsertElement(PercentElement);
+            }else if(code == ')' && rCursor.IsAtTailOfBracket(SmBracketType::Round, &pBraceNode)) {
+                rCursor.MoveAfterBracket(pBraceNode);
+            }else if(code == ']' && rCursor.IsAtTailOfBracket(SmBracketType::Square, &pBraceNode)) {
+                rCursor.MoveAfterBracket(pBraceNode);
+            }else if(code == '}' && rCursor.IsAtTailOfBracket(SmBracketType::Curly, &pBraceNode)) {
+                rCursor.MoveAfterBracket(pBraceNode);
+            }else{
+                if(code != 0){
+                    rCursor.InsertText(OUString(code));
+                }else if (! (GetView() && GetView()->KeyInput(rKEvt)) )
+                    ScrollableWindow::KeyInput(rKEvt);
+            }
+        }
+    }
+    }
+    CaretBlinkStop();
+    CaretBlinkStart();
+    SetIsCursorVisible(true);
+    RepaintViewShellDoc();
+}
+
+
+void SmGraphicWindow::Command(const CommandEvent& rCEvt)
+{
+    bool bCallBase = true;
+    if ( !pViewShell->GetViewFrame()->GetFrame().IsInPlace() )
+    {
+        switch ( rCEvt.GetCommand() )
+        {
+            case CommandEventId::ContextMenu:
+            {
+                GetParent()->ToTop();
+                Point aPos(5, 5);
+                if (rCEvt.IsMouseEvent())
+                    aPos = rCEvt.GetMousePosPixel();
+
+                // added for replaceability of context menus
+                SfxDispatcher::ExecutePopup( this, &aPos );
+
+                bCallBase = false;
+            }
+            break;
+
+            case CommandEventId::Wheel:
+            {
+                const CommandWheelData* pWData = rCEvt.GetWheelData();
+                if  ( pWData && CommandWheelMode::ZOOM == pWData->GetMode() )
+                {
+                    sal_uInt16 nTmpZoom = GetZoom();
+                    if( 0 > pWData->GetDelta() )
+                        nTmpZoom -= 10;
+                    else
+                        nTmpZoom += 10;
+                    SetZoom( nTmpZoom );
+                    bCallBase = false;
+                }
+            }
+            break;
+
+            default: break;
+        }
+    }
+    if ( bCallBase )
+        ScrollableWindow::Command (rCEvt);
+}
+
+
+void SmGraphicWindow::SetZoom(sal_uInt16 Factor)
+{
+    nZoom = std::min(std::max(Factor, MINZOOM), MAXZOOM);
+    Fraction   aFraction (nZoom, 100);
+    SetMapMode( MapMode(MapUnit::Map100thMM, Point(), aFraction, aFraction) );
+    SetTotalSize();
+    SmViewShell *pViewSh = GetView();
+    if (pViewSh)
+    {
+        pViewSh->GetViewFrame()->GetBindings().Invalidate(SID_ATTR_ZOOM);
+        pViewSh->GetViewFrame()->GetBindings().Invalidate(SID_ATTR_ZOOMSLIDER);
+    }
+    Invalidate();
+}
+
+
+void SmGraphicWindow::ZoomToFitInWindow()
+{
+    SmDocShell &rDoc = *pViewShell->GetDoc();
+
+    // set defined mapmode before calling 'LogicToPixel' below
+    SetMapMode(MapMode(MapUnit::Map100thMM));
+
+    Size       aSize (LogicToPixel(rDoc.GetSize()));
+    Size       aWindowSize (GetSizePixel());
+
+    if (!aSize.IsEmpty())
+    {
+        long nVal = std::min ((85 * aWindowSize.Width())  / aSize.Width(),
+                      (85 * aWindowSize.Height()) / aSize.Height());
+        SetZoom ( sal::static_int_cast< sal_uInt16 >(nVal) );
+    }
+}
+
+uno::Reference< XAccessible > SmGraphicWindow::CreateAccessible()
+{
+    if (!mxAccessible.is())
+    {
+        mxAccessible = new SmGraphicAccessible( this );
+    }
+    return mxAccessible.get();
+}
+
+/**************************************************************************/
+
+
+SmGraphicController::SmGraphicController(SmGraphicWindow &rSmGraphic,
+                        sal_uInt16          nId_,
+                        SfxBindings     &rBindings) :
+    SfxControllerItem(nId_, rBindings),
+    rGraphic(rSmGraphic)
+{
+}
+
+
+void SmGraphicController::StateChanged(sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState)
+{
+    rGraphic.SetTotalSize();
+    rGraphic.Invalidate();
+    SfxControllerItem::StateChanged (nSID, eState, pState);
+}
+
+
+/**************************************************************************/
+
+
+SmEditController::SmEditController(SmEditWindow &rSmEdit,
+                     sal_uInt16       nId_,
+                     SfxBindings  &rBindings) :
+    SfxControllerItem(nId_, rBindings),
+    rEdit(rSmEdit)
+{
+}
+
+
+
+void SmEditController::StateChanged(sal_uInt16 nSID, SfxItemState eState, const SfxPoolItem* pState)
+{
+    const SfxStringItem *pItem =  dynamic_cast<const SfxStringItem*>( pState);
+
+    if ((pItem != nullptr) && (rEdit.GetText() != pItem->GetValue()))
+        rEdit.SetText(pItem->GetValue());
+    SfxControllerItem::StateChanged (nSID, eState, pState);
+}
+
+/**************************************************************************/
+SmCmdBoxWindow::SmCmdBoxWindow(SfxBindings *pBindings_, SfxChildWindow *pChildWindow,
+                               vcl::Window *pParent) :
+    SfxDockingWindow(pBindings_, pChildWindow, pParent, WB_MOVEABLE|WB_CLOSEABLE|WB_SIZEABLE|WB_DOCKABLE),
+    aEdit       (VclPtr<SmEditWindow>::Create(*this)),
+    aController (*aEdit, SID_TEXT, *pBindings_),
+    bExiting    (false)
+{
+    SetHelpId( HID_SMA_COMMAND_WIN );
+    SetSizePixel(LogicToPixel(Size(292 , 94), MapMode(MapUnit::MapAppFont)));
+    SetText(SmResId(STR_CMDBOXWINDOW));
+
+    Hide();
+
+    aInitialFocusTimer.SetInvokeHandler(LINK(this, SmCmdBoxWindow, InitialFocusTimerHdl));
+    aInitialFocusTimer.SetTimeout(100);
+}
+
+SmCmdBoxWindow::~SmCmdBoxWindow ()
+{
+    disposeOnce();
+}
+
+void SmCmdBoxWindow::dispose()
+{
+    aInitialFocusTimer.Stop();
+    bExiting = true;
+    aController.dispose();
+    aEdit.disposeAndClear();
+    SfxDockingWindow::dispose();
+}
+
+SmViewShell * SmCmdBoxWindow::GetView()
+{
+    SfxDispatcher *pDispatcher = GetBindings().GetDispatcher();
+    SfxViewShell *pView = pDispatcher ? pDispatcher->GetFrame()->GetViewShell() : nullptr;
+    return  dynamic_cast<SmViewShell*>( pView);
+}
+
+void SmCmdBoxWindow::Resize()
+{
+    tools::Rectangle aRect(Point(0, 0), GetOutputSizePixel());
+    aRect.AdjustLeft(CMD_BOX_PADDING );
+    aRect.AdjustTop(CMD_BOX_PADDING_TOP );
+    aRect.AdjustRight( -(CMD_BOX_PADDING) );
+    aRect.AdjustBottom( -(CMD_BOX_PADDING) );
+
+    DecorationView aView(this);
+    aRect = aView.DrawFrame(aRect, DrawFrameStyle::In, DrawFrameFlags::NoDraw);
+
+    aEdit->SetPosSizePixel(aRect.TopLeft(), aRect.GetSize());
+    SfxDockingWindow::Resize();
+    Invalidate();
+}
+
+void SmCmdBoxWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/)
+{
+    tools::Rectangle aRect(Point(0, 0), GetOutputSizePixel());
+    aRect.AdjustLeft(CMD_BOX_PADDING );
+    aRect.AdjustTop(CMD_BOX_PADDING_TOP );
+    aRect.AdjustRight( -(CMD_BOX_PADDING) );
+    aRect.AdjustBottom( -(CMD_BOX_PADDING) );
+
+    aEdit->SetPosSizePixel(aRect.TopLeft(), aRect.GetSize());
+
+    DecorationView aView(&rRenderContext);
+    aView.DrawFrame( aRect, DrawFrameStyle::In );
+}
+
+Size SmCmdBoxWindow::CalcDockingSize(SfxChildAlignment eAlign)
+{
+    switch (eAlign)
+    {
+        case SfxChildAlignment::LEFT:
+        case SfxChildAlignment::RIGHT:
+            return Size();
+        default:
+            break;
+    }
+    return SfxDockingWindow::CalcDockingSize(eAlign);
+}
+
+SfxChildAlignment SmCmdBoxWindow::CheckAlignment(SfxChildAlignment eActual,
+                                             SfxChildAlignment eWish)
+{
+    switch (eWish)
+    {
+        case SfxChildAlignment::TOP:
+        case SfxChildAlignment::BOTTOM:
+        case SfxChildAlignment::NOALIGNMENT:
+            return eWish;
+        default:
+            break;
+    }
+
+    return eActual;
+}
+
+void SmCmdBoxWindow::StateChanged( StateChangedType nStateChange )
+{
+    if (StateChangedType::InitShow == nStateChange)
+    {
+        Resize();   // avoid SmEditWindow not being painted correctly
+
+        // set initial position of window in floating mode
+        if (IsFloatingMode())
+            AdjustPosition();   //! don't change pos in docking-mode !
+
+        aInitialFocusTimer.Start();
+    }
+
+    SfxDockingWindow::StateChanged( nStateChange );
+}
+
+IMPL_LINK_NOARG( SmCmdBoxWindow, InitialFocusTimerHdl, Timer *, void )
+{
+    // We want to have the focus in the edit window once Math has been opened
+    // to allow for immediate typing.
+    // Problem: There is no proper way to do this
+    // Thus: this timer based solution has been implemented (see GrabFocus below)
+
+    // Follow-up problem (#i114910): grabbing the focus may bust the help system since
+    // it relies on getting the current frame which conflicts with grabbing the focus.
+    // Thus aside from the 'GrabFocus' call everything else is to get the
+    // help reliably working despite using 'GrabFocus'.
+
+    try
+    {
+        uno::Reference< frame::XDesktop2 > xDesktop = frame::Desktop::create( comphelper::getProcessComponentContext() );
+
+        aEdit->GrabFocus();
+
+        SmViewShell* pView = GetView();
+        assert(pView);
+        bool bInPlace = pView->GetViewFrame()->GetFrame().IsInPlace();
+        uno::Reference< frame::XFrame > xFrame( GetBindings().GetDispatcher()->GetFrame()->GetFrame().GetFrameInterface());
+        if ( bInPlace )
+        {
+            uno::Reference<container::XChild> xModel(pView->GetDoc()->GetModel(),
+                                                     uno::UNO_QUERY_THROW);
+            uno::Reference< frame::XModel > xParent( xModel->getParent(), uno::UNO_QUERY_THROW );
+            uno::Reference< frame::XController > xParentCtrler( xParent->getCurrentController() );
+            uno::Reference< frame::XFramesSupplier > xParentFrame( xParentCtrler->getFrame(), uno::UNO_QUERY_THROW );
+            xParentFrame->setActiveFrame( xFrame );
+        }
+        else
+        {
+            xDesktop->setActiveFrame( xFrame );
+        }
+    }
+    catch (uno::Exception &)
+    {
+        SAL_WARN( "starmath", "failed to properly set initial focus to edit window" );
+    }
+}
+
+void SmCmdBoxWindow::AdjustPosition()
+{
+    const tools::Rectangle aRect( Point(), GetParent()->GetOutputSizePixel() );
+    Point aTopLeft( Point( aRect.Left(),
+                           aRect.Bottom() - GetSizePixel().Height() ) );
+    Point aPos( GetParent()->OutputToScreenPixel( aTopLeft ) );
+    if (aPos.X() < 0)
+        aPos.setX( 0 );
+    if (aPos.Y() < 0)
+        aPos.setY( 0 );
+    SetPosPixel( aPos );
+}
+
+void SmCmdBoxWindow::ToggleFloatingMode()
+{
+    SfxDockingWindow::ToggleFloatingMode();
+
+    if (GetFloatingWindow())
+        GetFloatingWindow()->SetMinOutputSizePixel(Size (200, 50));
+}
+
+void SmCmdBoxWindow::GetFocus()
+{
+    if (!bExiting)
+        aEdit->GrabFocus();
+}
+
+SFX_IMPL_DOCKINGWINDOW_WITHID(SmCmdBoxWrapper, SID_CMDBOXWINDOW);
+
+SmCmdBoxWrapper::SmCmdBoxWrapper(vcl::Window *pParentWindow, sal_uInt16 nId,
+                                 SfxBindings *pBindings,
+                                 SfxChildWinInfo *pInfo) :
+    SfxChildWindow(pParentWindow, nId)
+{
+    SetWindow(VclPtr<SmCmdBoxWindow>::Create(pBindings, this, pParentWindow));
+
+    // make window docked to the bottom initially (after first start)
+    SetAlignment(SfxChildAlignment::BOTTOM);
+    static_cast<SfxDockingWindow *>(GetWindow())->Initialize(pInfo);
+}
+
+struct SmViewShell_Impl
+{
+    std::unique_ptr<sfx2::DocumentInserter> pDocInserter;
+    std::unique_ptr<SfxRequest> pRequest;
+    SvtMiscOptions          aOpts;
+};
+
+SFX_IMPL_SUPERCLASS_INTERFACE(SmViewShell, SfxViewShell)
+
+void SmViewShell::InitInterface_Impl()
+{
+    GetStaticInterface()->RegisterObjectBar(SFX_OBJECTBAR_TOOLS,
+                                            SfxVisibilityFlags::Standard | SfxVisibilityFlags::FullScreen | SfxVisibilityFlags::Server,
+                                            ToolbarId::Math_Toolbox);
+    //Dummy-Objectbar, to avoid quiver while activating
+
+    GetStaticInterface()->RegisterChildWindow(SmCmdBoxWrapper::GetChildWindowId());
+    GetStaticInterface()->RegisterChildWindow(SmElementsDockingWindowWrapper::GetChildWindowId());
+    GetStaticInterface()->RegisterChildWindow(SfxInfoBarContainerChild::GetChildWindowId());
+}
+
+SFX_IMPL_NAMED_VIEWFACTORY(SmViewShell, "Default")
+{
+    SFX_VIEW_REGISTRATION(SmDocShell);
+}
+
+void SmViewShell::InnerResizePixel(const Point &rOfs, const Size &rSize, bool)
+{
+    Size aObjSize = GetObjectShell()->GetVisArea().GetSize();
+    if ( !aObjSize.IsEmpty() )
+    {
+        Size aProvidedSize = GetWindow()->PixelToLogic(rSize, MapMode(MapUnit::Map100thMM));
+        SfxViewShell::SetZoomFactor( Fraction( aProvidedSize.Width(), aObjSize.Width() ),
+                        Fraction( aProvidedSize.Height(), aObjSize.Height() ) );
+    }
+
+    SetBorderPixel( SvBorder() );
+    GetGraphicWindow().SetPosSizePixel(rOfs, rSize);
+    GetGraphicWindow().SetTotalSize();
+}
+
+void SmViewShell::OuterResizePixel(const Point &rOfs, const Size &rSize)
+{
+    SmGraphicWindow &rWin = GetGraphicWindow();
+    rWin.SetPosSizePixel(rOfs, rSize);
+    if (GetDoc()->IsPreview())
+        rWin.ZoomToFitInWindow();
+    rWin.PaintImmediately();
+}
+
+void SmViewShell::QueryObjAreaPixel( tools::Rectangle& rRect ) const
+{
+    rRect.SetSize( GetGraphicWindow().GetSizePixel() );
+}
+
+void SmViewShell::SetZoomFactor( const Fraction &rX, const Fraction &rY )
+{
+    const Fraction &rFrac = std::min(rX, rY);
+    GetGraphicWindow().SetZoom(sal::static_int_cast<sal_uInt16>(long(rFrac * Fraction( 100, 1 ))));
+
+    //To avoid rounding errors base class regulates crooked values too
+    //if necessary
+    SfxViewShell::SetZoomFactor( rX, rY );
+}
+
+Size SmViewShell::GetTextLineSize(OutputDevice const & rDevice, const OUString& rLine)
+{
+    Size   aSize(rDevice.GetTextWidth(rLine), rDevice.GetTextHeight());
+    const long nTabPos = rLine.isEmpty() ? 0 : rDevice.approximate_digit_width() * 8;
+
+    if (nTabPos)
+    {
+        aSize.setWidth( 0 );
+        sal_Int32 nPos = 0;
+        do
+        {
+            if (nPos > 0)
+                aSize.setWidth( ((aSize.Width() / nTabPos) + 1) * nTabPos );
+
+            const OUString aText = rLine.getToken(0, '\t', nPos);
+            aSize.AdjustWidth(rDevice.GetTextWidth(aText) );
+        }
+        while (nPos >= 0);
+    }
+
+    return aSize;
+}
+
+Size SmViewShell::GetTextSize(OutputDevice const & rDevice, const OUString& rText, long MaxWidth)
+{
+    Size aSize;
+    Size aTextSize;
+    if (rText.isEmpty())
+        return aTextSize;
+
+    sal_Int32 nPos = 0;
+    do
+    {
+        OUString aLine = rText.getToken(0, '\n', nPos);
+        aLine = aLine.replaceAll("\r", "");
+
+        aSize = GetTextLineSize(rDevice, aLine);
+
+        if (aSize.Width() > MaxWidth)
+        {
+            do
+            {
+                OUString aText;
+                sal_Int32 m = aLine.getLength();
+                sal_Int32 nLen = m;
+
+                for (sal_Int32 n = 0; n < nLen; n++)
+                {
+                    sal_Unicode cLineChar = aLine[n];
+                    if ((cLineChar == ' ') || (cLineChar == '\t'))
+                    {
+                        aText = aLine.copy(0, n);
+                        if (GetTextLineSize(rDevice, aText).Width() < MaxWidth)
+                            m = n;
+                        else
+                            break;
+                    }
+                }
+
+                aText = aLine.copy(0, m);
+                aLine = aLine.replaceAt(0, m, "");
+                aSize = GetTextLineSize(rDevice, aText);
+                aTextSize.AdjustHeight(aSize.Height() );
+                aTextSize.setWidth( std::max(aTextSize.Width(), std::min(aSize.Width(), MaxWidth)) );
+
+                aLine = comphelper::string::stripStart(aLine, ' ');
+                aLine = comphelper::string::stripStart(aLine, '\t');
+                aLine = comphelper::string::stripStart(aLine, ' ');
+            }
+            while (!aLine.isEmpty());
+        }
+        else
+        {
+            aTextSize.AdjustHeight(aSize.Height() );
+            aTextSize.setWidth( std::max(aTextSize.Width(), aSize.Width()) );
+        }
+    }
+    while (nPos >= 0);
+
+    return aTextSize;
+}
+
+void SmViewShell::DrawTextLine(OutputDevice& rDevice, const Point& rPosition, const OUString& rLine)
+{
+    Point aPoint(rPosition);
+    const long nTabPos = rLine.isEmpty() ? 0 : rDevice.approximate_digit_width() * 8;
+
+    if (nTabPos)
+    {
+        sal_Int32 nPos = 0;
+        do
+        {
+            if (nPos > 0)
+                aPoint.setX( ((aPoint.X() / nTabPos) + 1) * nTabPos );
+
+            OUString aText = rLine.getToken(0, '\t', nPos);
+            rDevice.DrawText(aPoint, aText);
+            aPoint.AdjustX(rDevice.GetTextWidth(aText) );
+        }
+        while ( nPos >= 0 );
+    }
+    else
+        rDevice.DrawText(aPoint, rLine);
+}
+
+
+void SmViewShell::DrawText(OutputDevice& rDevice, const Point& rPosition, const OUString& rText, sal_uInt16 MaxWidth)
+{
+    if (rText.isEmpty())
+        return;
+
+    Point aPoint(rPosition);
+    Size aSize;
+
+    sal_Int32 nPos = 0;
+    do
+    {
+        OUString aLine = rText.getToken(0, '\n', nPos);
+        aLine = aLine.replaceAll("\r", "");
+        aSize = GetTextLineSize(rDevice, aLine);
+        if (aSize.Width() > MaxWidth)
+        {
+            do
+            {
+                OUString aText;
+                sal_Int32 m = aLine.getLength();
+                sal_Int32 nLen = m;
+
+                for (sal_Int32 n = 0; n < nLen; n++)
+                {
+                    sal_Unicode cLineChar = aLine[n];
+                    if ((cLineChar == ' ') || (cLineChar == '\t'))
+                    {
+                        aText = aLine.copy(0, n);
+                        if (GetTextLineSize(rDevice, aText).Width() < MaxWidth)
+                            m = n;
+                        else
+                            break;
+                    }
+                }
+                aText = aLine.copy(0, m);
+                aLine = aLine.replaceAt(0, m, "");
+
+                DrawTextLine(rDevice, aPoint, aText);
+                aPoint.AdjustY(aSize.Height() );
+
+                aLine = comphelper::string::stripStart(aLine, ' ');
+                aLine = comphelper::string::stripStart(aLine, '\t');
+                aLine = comphelper::string::stripStart(aLine, ' ');
+            }
+            while (GetTextLineSize(rDevice, aLine).Width() > MaxWidth);
+
+            // print the remaining text
+            if (!aLine.isEmpty())
+            {
+                DrawTextLine(rDevice, aPoint, aLine);
+                aPoint.AdjustY(aSize.Height() );
+            }
+        }
+        else
+        {
+            DrawTextLine(rDevice, aPoint, aLine);
+            aPoint.AdjustY(aSize.Height() );
+        }
+    }
+    while ( nPos >= 0 );
+}
+
+void SmViewShell::Impl_Print(OutputDevice &rOutDev, const SmPrintUIOptions &rPrintUIOptions, tools::Rectangle aOutRect )
+{
+    const bool bIsPrintTitle = rPrintUIOptions.getBoolValue( PRTUIOPT_TITLE_ROW, true );
+    const bool bIsPrintFrame = rPrintUIOptions.getBoolValue( PRTUIOPT_BORDER, true );
+    const bool bIsPrintFormulaText = rPrintUIOptions.getBoolValue( PRTUIOPT_FORMULA_TEXT, true );
+    SmPrintSize ePrintSize( static_cast< SmPrintSize >( rPrintUIOptions.getIntValue( PRTUIOPT_PRINT_FORMAT, PRINT_SIZE_NORMAL ) ));
+    const sal_uInt16 nZoomFactor = static_cast< sal_uInt16 >(rPrintUIOptions.getIntValue( PRTUIOPT_PRINT_SCALE, 100 ));
+
+    rOutDev.Push();
+    rOutDev.SetLineColor( COL_BLACK );
+
+    // output text on top
+    if (bIsPrintTitle)
+    {
+        Size aSize600 (0, 600);
+        Size aSize650 (0, 650);
+        vcl::Font aFont(FAMILY_DONTKNOW, aSize600);
+
+        aFont.SetAlignment(ALIGN_TOP);
+        aFont.SetWeight(WEIGHT_BOLD);
+        aFont.SetFontSize(aSize650);
+        aFont.SetColor( COL_BLACK );
+        rOutDev.SetFont(aFont);
+
+        Size aTitleSize (GetTextSize(rOutDev, GetDoc()->GetTitle(), aOutRect.GetWidth() - 200));
+
+        aFont.SetWeight(WEIGHT_NORMAL);
+        aFont.SetFontSize(aSize600);
+        rOutDev.SetFont(aFont);
+
+        Size aDescSize (GetTextSize(rOutDev, GetDoc()->GetComment(), aOutRect.GetWidth() - 200));
+
+        if (bIsPrintFrame)
+            rOutDev.DrawRect(tools::Rectangle(aOutRect.TopLeft(),
+                               Size(aOutRect.GetWidth(), 100 + aTitleSize.Height() + 200 + aDescSize.Height() + 100)));
+        aOutRect.AdjustTop(200 );
+
+        // output title
+        aFont.SetWeight(WEIGHT_BOLD);
+        aFont.SetFontSize(aSize650);
+        rOutDev.SetFont(aFont);
+        Point aPoint(aOutRect.Left() + (aOutRect.GetWidth() - aTitleSize.Width())  / 2,
+                     aOutRect.Top());
+        DrawText(rOutDev, aPoint, GetDoc()->GetTitle(),
+                 sal::static_int_cast< sal_uInt16 >(aOutRect.GetWidth() - 200));
+        aOutRect.AdjustTop(aTitleSize.Height() + 200 );
+
+        // output description
+        aFont.SetWeight(WEIGHT_NORMAL);
+        aFont.SetFontSize(aSize600);
+        rOutDev.SetFont(aFont);
+        aPoint.setX( aOutRect.Left() + (aOutRect.GetWidth()  - aDescSize.Width())  / 2 );
+        aPoint.setY( aOutRect.Top() );
+        DrawText(rOutDev, aPoint, GetDoc()->GetComment(),
+                 sal::static_int_cast< sal_uInt16 >(aOutRect.GetWidth() - 200));
+        aOutRect.AdjustTop(aDescSize.Height() + 300 );
+    }
+
+    // output text on bottom
+    if (bIsPrintFormulaText)
+    {
+        vcl::Font aFont(FAMILY_DONTKNOW, Size(0, 600));
+        aFont.SetAlignment(ALIGN_TOP);
+        aFont.SetColor( COL_BLACK );
+
+        // get size
+        rOutDev.SetFont(aFont);
+
+        Size aSize (GetTextSize(rOutDev, GetDoc()->GetText(), aOutRect.GetWidth() - 200));
+
+        aOutRect.AdjustBottom( -(aSize.Height() + 600) );
+
+        if (bIsPrintFrame)
+            rOutDev.DrawRect(tools::Rectangle(aOutRect.BottomLeft(),
+                               Size(aOutRect.GetWidth(), 200 + aSize.Height() + 200)));
+
+        Point aPoint (aOutRect.Left() + (aOutRect.GetWidth()  - aSize.Width())  / 2,
+                      aOutRect.Bottom() + 300);
+        DrawText(rOutDev, aPoint, GetDoc()->GetText(),
+                 sal::static_int_cast< sal_uInt16 >(aOutRect.GetWidth() - 200));
+        aOutRect.AdjustBottom( -200 );
+    }
+
+    if (bIsPrintFrame)
+        rOutDev.DrawRect(aOutRect);
+
+    aOutRect.AdjustTop(100 );
+    aOutRect.AdjustLeft(100 );
+    aOutRect.AdjustBottom( -100 );
+    aOutRect.AdjustRight( -100 );
+
+    Size aSize (GetDoc()->GetSize());
+
+    MapMode    OutputMapMode;
+    // PDF export should always use PRINT_SIZE_NORMAL ...
+    if (!rPrintUIOptions.getBoolValue( "IsPrinter" ) )
+        ePrintSize = PRINT_SIZE_NORMAL;
+    switch (ePrintSize)
+    {
+        case PRINT_SIZE_NORMAL:
+            OutputMapMode = MapMode(MapUnit::Map100thMM);
+            break;
+
+        case PRINT_SIZE_SCALED:
+            if (!aSize.IsEmpty())
+            {
+                Size     OutputSize (rOutDev.LogicToPixel(Size(aOutRect.GetWidth(),
+                                                            aOutRect.GetHeight()), MapMode(MapUnit::Map100thMM)));
+                Size     GraphicSize (rOutDev.LogicToPixel(aSize, MapMode(MapUnit::Map100thMM)));
+                sal_uInt16 nZ = sal::static_int_cast<sal_uInt16>(std::min(long(Fraction(OutputSize.Width()  * 100, GraphicSize.Width())),
+                                                                          long(Fraction(OutputSize.Height() * 100, GraphicSize.Height()))));
+                nZ -= 10;
+                Fraction aFraction (std::max(MINZOOM, std::min(MAXZOOM, nZ)), 100);
+
+                OutputMapMode = MapMode(MapUnit::Map100thMM, Point(), aFraction, aFraction);
+            }
+            else
+                OutputMapMode = MapMode(MapUnit::Map100thMM);
+            break;
+
+        case PRINT_SIZE_ZOOMED:
+        {
+            Fraction aFraction( nZoomFactor, 100 );
+
+            OutputMapMode = MapMode(MapUnit::Map100thMM, Point(), aFraction, aFraction);
+            break;
+        }
+    }
+
+    aSize = rOutDev.PixelToLogic(rOutDev.LogicToPixel(aSize, OutputMapMode),
+                                   MapMode(MapUnit::Map100thMM));
+
+    Point aPos (aOutRect.Left() + (aOutRect.GetWidth()  - aSize.Width())  / 2,
+                aOutRect.Top()  + (aOutRect.GetHeight() - aSize.Height()) / 2);
+
+    aPos     = rOutDev.PixelToLogic(rOutDev.LogicToPixel(aPos, MapMode(MapUnit::Map100thMM)),
+                                          OutputMapMode);
+    aOutRect   = rOutDev.PixelToLogic(rOutDev.LogicToPixel(aOutRect, MapMode(MapUnit::Map100thMM)),
+                                          OutputMapMode);
+
+    rOutDev.SetMapMode(OutputMapMode);
+    rOutDev.SetClipRegion(vcl::Region(aOutRect));
+    GetDoc()->DrawFormula(rOutDev, aPos);
+    rOutDev.SetClipRegion();
+
+    rOutDev.Pop();
+}
+
+SfxPrinter* SmViewShell::GetPrinter(bool bCreate)
+{
+    SmDocShell* pDoc = GetDoc();
+    if (pDoc->HasPrinter() || bCreate)
+        return pDoc->GetPrinter();
+    return nullptr;
+}
+
+sal_uInt16 SmViewShell::SetPrinter(SfxPrinter *pNewPrinter, SfxPrinterChangeFlags nDiffFlags )
+{
+    SfxPrinter *pOld = GetDoc()->GetPrinter();
+    if ( pOld && pOld->IsPrinting() )
+        return SFX_PRINTERROR_BUSY;
+
+    if ((nDiffFlags & SfxPrinterChangeFlags::PRINTER) == SfxPrinterChangeFlags::PRINTER)
+        GetDoc()->SetPrinter( pNewPrinter );
+
+    if ((nDiffFlags & SfxPrinterChangeFlags::OPTIONS) == SfxPrinterChangeFlags::OPTIONS)
+    {
+        SmModule *pp = SM_MOD();
+        pp->GetConfig()->ItemSetToConfig(pNewPrinter->GetOptions());
+    }
+    return 0;
+}
+
+bool SmViewShell::HasPrintOptionsPage() const
+{
+    return true;
+}
+
+std::unique_ptr<SfxTabPage> SmViewShell::CreatePrintOptionsPage(weld::Container* pPage, weld::DialogController* pController,
+                                                       const SfxItemSet &rOptions)
+{
+    return SmPrintOptionsTabPage::Create(pPage, pController, rOptions);
+}
+
+SmEditWindow *SmViewShell::GetEditWindow()
+{
+    SmCmdBoxWrapper* pWrapper = static_cast<SmCmdBoxWrapper*>(
+                                    GetViewFrame()->GetChildWindow(SmCmdBoxWrapper::GetChildWindowId()));
+
+    if (pWrapper != nullptr)
+    {
+        SmEditWindow& rEditWin = pWrapper->GetEditWindow();
+        return &rEditWin;
+    }
+
+    return nullptr;
+}
+
+void SmViewShell::SetStatusText(const OUString& rText)
+{
+    maStatusText = rText;
+    GetViewFrame()->GetBindings().Invalidate(SID_TEXTSTATUS);
+}
+
+void SmViewShell::ShowError(const SmErrorDesc* pErrorDesc)
+{
+    assert(GetDoc());
+    if (pErrorDesc || nullptr != (pErrorDesc = GetDoc()->GetParser().GetError()) )
+    {
+        SetStatusText( pErrorDesc->m_aText );
+        GetEditWindow()->MarkError( Point( pErrorDesc->m_pNode->GetColumn(),
+                                           pErrorDesc->m_pNode->GetRow()));
+    }
+}
+
+void SmViewShell::NextError()
+{
+    assert(GetDoc());
+    const SmErrorDesc   *pErrorDesc = GetDoc()->GetParser().NextError();
+
+    if (pErrorDesc)
+        ShowError( pErrorDesc );
+}
+
+void SmViewShell::PrevError()
+{
+    assert(GetDoc());
+    const SmErrorDesc   *pErrorDesc = GetDoc()->GetParser().PrevError();
+
+    if (pErrorDesc)
+        ShowError( pErrorDesc );
+}
+
+void SmViewShell::Insert( SfxMedium& rMedium )
+{
+    SmDocShell *pDoc = GetDoc();
+    bool bRet = false;
+
+    uno::Reference <embed::XStorage> xStorage = rMedium.GetStorage();
+    if (xStorage.is() && xStorage->getElementNames().hasElements())
+    {
+        if (xStorage->hasByName("content.xml"))
+        {
+            // is this a fabulous math package ?
+            Reference<css::frame::XModel> xModel(pDoc->GetModel());
+            SmXMLImportWrapper aEquation(xModel);    //!! modifies the result of pDoc->GetText() !!
+            bRet = ERRCODE_NONE == aEquation.Import(rMedium);
+        }
+    }
+
+    if (!bRet)
+        return;
+
+    OUString aText = pDoc->GetText();
+    SmEditWindow *pEditWin = GetEditWindow();
+    if (pEditWin)
+        pEditWin->InsertText( aText );
+    else
+    {
+        SAL_WARN( "starmath", "EditWindow missing" );
+    }
+
+    pDoc->Parse();
+    pDoc->SetModified();
+
+    SfxBindings &rBnd = GetViewFrame()->GetBindings();
+    rBnd.Invalidate(SID_GAPHIC_SM);
+    rBnd.Invalidate(SID_TEXT);
+}
+
+void SmViewShell::InsertFrom(SfxMedium &rMedium)
+{
+    bool bSuccess = false;
+    SmDocShell* pDoc = GetDoc();
+    SvStream* pStream = rMedium.GetInStream();
+
+    if (pStream)
+    {
+        const OUString& rFltName = rMedium.GetFilter()->GetFilterName();
+        if ( rFltName == MATHML_XML )
+        {
+            Reference<css::frame::XModel> xModel(pDoc->GetModel());
+            SmXMLImportWrapper aEquation(xModel);    //!! modifies the result of pDoc->GetText() !!
+            bSuccess = ERRCODE_NONE == aEquation.Import(rMedium);
+        }
+    }
+
+    if (!bSuccess)
+        return;
+
+    OUString aText = pDoc->GetText();
+    SmEditWindow *pEditWin = GetEditWindow();
+    if (pEditWin)
+        pEditWin->InsertText(aText);
+    else
+        SAL_WARN( "starmath", "EditWindow missing" );
+
+    pDoc->Parse();
+    pDoc->SetModified();
+
+    SfxBindings& rBnd = GetViewFrame()->GetBindings();
+    rBnd.Invalidate(SID_GAPHIC_SM);
+    rBnd.Invalidate(SID_TEXT);
+}
+
+void SmViewShell::Execute(SfxRequest& rReq)
+{
+    SmEditWindow *pWin = GetEditWindow();
+
+    switch (rReq.GetSlot())
+    {
+        case SID_FORMULACURSOR:
+        {
+            SmModule *pp = SM_MOD();
+
+            const SfxItemSet  *pArgs = rReq.GetArgs();
+            const SfxPoolItem *pItem;
+
+            bool  bVal;
+            if ( pArgs &&
+                 SfxItemState::SET == pArgs->GetItemState( SID_FORMULACURSOR, false, &pItem))
+                bVal = static_cast<const SfxBoolItem *>(pItem)->GetValue();
+            else
+                bVal = !pp->GetConfig()->IsShowFormulaCursor();
+
+            pp->GetConfig()->SetShowFormulaCursor(bVal);
+            if (!IsInlineEditEnabled())
+                GetGraphicWindow().ShowCursor(bVal);
+            break;
+        }
+        case SID_DRAW:
+            if (pWin)
+            {
+                GetDoc()->SetText( pWin->GetText() );
+                SetStatusText(OUString());
+                ShowError( nullptr );
+                GetDoc()->Repaint();
+            }
+            break;
+
+        case SID_ZOOM_OPTIMAL:
+            mpGraphic->ZoomToFitInWindow();
+            break;
+
+        case SID_ZOOMIN:
+            mpGraphic->SetZoom(mpGraphic->GetZoom() + 25);
+            break;
+
+        case SID_ZOOMOUT:
+            SAL_WARN_IF( mpGraphic->GetZoom() < 25, "starmath", "incorrect sal_uInt16 argument" );
+            mpGraphic->SetZoom(mpGraphic->GetZoom() - 25);
+            break;
+
+        case SID_COPYOBJECT:
+        {
+            //TODO/LATER: does not work because of UNO Tunneling - will be fixed later
+            Reference< datatransfer::XTransferable > xTrans( GetDoc()->GetModel(), uno::UNO_QUERY );
+            if( xTrans.is() )
+            {
+                auto pTrans = comphelper::getUnoTunnelImplementation<TransferableHelper>(xTrans);
+                if( pTrans )
+                    pTrans->CopyToClipboard(GetEditWindow());
+            }
+        }
+        break;
+
+        case SID_PASTEOBJECT:
+        {
+            TransferableDataHelper aData( TransferableDataHelper::CreateFromSystemClipboard(GetEditWindow()) );
+            uno::Reference < io::XInputStream > xStrm;
+            SotClipboardFormatId nId;
+            if( aData.GetTransferable().is() &&
+                ( aData.HasFormat( nId = SotClipboardFormatId::EMBEDDED_OBJ ) ||
+                  (aData.HasFormat( SotClipboardFormatId::OBJECTDESCRIPTOR ) &&
+                   aData.HasFormat( nId = SotClipboardFormatId::EMBED_SOURCE ))))
+                xStrm = aData.GetInputStream(nId, OUString());
+
+            if (xStrm.is())
+            {
+                try
+                {
+                    uno::Reference < embed::XStorage > xStorage =
+                            ::comphelper::OStorageHelper::GetStorageFromInputStream( xStrm, ::comphelper::getProcessComponentContext() );
+                    SfxMedium aMedium( xStorage, OUString() );
+                    Insert( aMedium );
+                    GetDoc()->UpdateText();
+                }
+                catch (uno::Exception &)
+                {
+                    SAL_WARN( "starmath", "SmViewShell::Execute (SID_PASTEOBJECT): failed to get storage from input stream" );
+                }
+            }
+        }
+        break;
+
+
+        case SID_CUT:
+            if (pWin)
+                pWin->Cut();
+            break;
+
+        case SID_COPY:
+            if (pWin)
+            {
+                if (pWin->IsAllSelected())
+                {
+                    GetViewFrame()->GetDispatcher()->ExecuteList(
+                                SID_COPYOBJECT, SfxCallMode::RECORD,
+                                { new SfxVoidItem(SID_COPYOBJECT) });
+                }
+                else
+                    pWin->Copy();
+            }
+            break;
+
+        case SID_PASTE:
+            {
+                bool bCallExec = nullptr == pWin;
+                if( !bCallExec )
+                {
+                    TransferableDataHelper aDataHelper(
+                        TransferableDataHelper::CreateFromSystemClipboard(
+                                                    GetEditWindow()) );
+
+                    if( aDataHelper.GetTransferable().is() &&
+                        aDataHelper.HasFormat( SotClipboardFormatId::STRING ))
+                        pWin->Paste();
+                    else
+                        bCallExec = true;
+                }
+                if( bCallExec )
+                {
+                    GetViewFrame()->GetDispatcher()->ExecuteList(
+                            SID_PASTEOBJECT, SfxCallMode::RECORD,
+                            { new SfxVoidItem(SID_PASTEOBJECT) });
+                }
+            }
+            break;
+
+        case SID_DELETE:
+            if (pWin)
+                pWin->Delete();
+            break;
+
+        case SID_SELECT:
+            if (pWin)
+                pWin->SelectAll();
+            break;
+
+        case SID_INSERTCOMMANDTEXT:
+        {
+            const SfxStringItem& rItem = static_cast<const SfxStringItem&>(rReq.GetArgs()->Get(SID_INSERTCOMMANDTEXT));
+
+            if (pWin && (mbInsertIntoEditWindow || !IsInlineEditEnabled()))
+            {
+                pWin->InsertText(rItem.GetValue());
+            }
+            if (IsInlineEditEnabled() && (GetDoc() && !mbInsertIntoEditWindow))
+            {
+                GetDoc()->GetCursor().InsertCommandText(rItem.GetValue());
+                GetGraphicWindow().GrabFocus();
+            }
+            break;
+
+        }
+
+        case SID_INSERTSPECIAL:
+        {
+            const SfxStringItem& rItem =
+                static_cast<const SfxStringItem&>(rReq.GetArgs()->Get(SID_INSERTSPECIAL));
+
+            if (pWin && (mbInsertIntoEditWindow || !IsInlineEditEnabled()))
+                pWin->InsertText(rItem.GetValue());
+            if (IsInlineEditEnabled() && (GetDoc() && !mbInsertIntoEditWindow))
+                GetDoc()->GetCursor().InsertSpecial(rItem.GetValue());
+            break;
+        }
+
+        case SID_IMPORT_FORMULA:
+        {
+            mpImpl->pRequest.reset(new SfxRequest( rReq ));
+            mpImpl->pDocInserter.reset(new ::sfx2::DocumentInserter(pWin ? pWin->GetFrameWeld() : nullptr,
+                              GetDoc()->GetFactory().GetFactoryName()));
+            mpImpl->pDocInserter->StartExecuteModal( LINK( this, SmViewShell, DialogClosedHdl ) );
+            break;
+        }
+
+        case SID_IMPORT_MATHML_CLIPBOARD:
+        {
+            TransferableDataHelper aDataHelper( TransferableDataHelper::CreateFromSystemClipboard(GetEditWindow()) );
+            uno::Reference < io::XInputStream > xStrm;
+            SotClipboardFormatId nId = SOT_FORMAT_SYSTEM_START; //dummy initialize to avoid warning
+            if  ( aDataHelper.GetTransferable().is() )
+            {
+                nId = SotClipboardFormatId::MATHML;
+                if (aDataHelper.HasFormat(nId))
+                {
+                    xStrm = aDataHelper.GetInputStream(nId, "");
+                    if (xStrm.is())
+                    {
+                        std::unique_ptr<SfxMedium> pClipboardMedium(new SfxMedium());
+                        pClipboardMedium->GetItemSet(); //generate initial itemset, not sure if necessary
+                        std::shared_ptr<const SfxFilter> pMathFilter =
+                            SfxFilter::GetFilterByName(MATHML_XML);
+                        pClipboardMedium->SetFilter(pMathFilter);
+                        pClipboardMedium->setStreamToLoadFrom(xStrm, true /*bIsReadOnly*/);
+                        InsertFrom(*pClipboardMedium);
+                        GetDoc()->UpdateText();
+                    }
+                }
+                else
+                {
+                    nId = SotClipboardFormatId::STRING;
+                    if (aDataHelper.HasFormat(nId))
+                    {
+                        // In case of FORMAT_STRING no stream exists, need to generate one
+                        OUString aString;
+                        if (aDataHelper.GetString( nId, aString))
+                        {
+                            // tdf#117091 force xml declaration to exist
+                            if (!aString.startsWith("<?xml"))
+                                aString = "<?xml version=\"1.0\"?>\n" + aString;
+
+                            std::unique_ptr<SfxMedium> pClipboardMedium(new SfxMedium());
+                            pClipboardMedium->GetItemSet(); //generates initial itemset, not sure if necessary
+                            std::shared_ptr<const SfxFilter> pMathFilter =
+                                SfxFilter::GetFilterByName(MATHML_XML);
+                            pClipboardMedium->SetFilter(pMathFilter);
+
+                            std::unique_ptr<SvMemoryStream> pStrm;
+                            // The text to be imported might asserts encoding like 'encoding="utf-8"' but FORMAT_STRING is UTF-16.
+                            // Force encoding to UTF-16, if encoding exists.
+                            bool bForceUTF16 = false;
+                            sal_Int32 nPosL = aString.indexOf("encoding=\"");
+                            sal_Int32 nPosU = -1;
+                            if ( nPosL >= 0 && nPosL +10 < aString.getLength() )
+                            {
+                                nPosL += 10;
+                                nPosU = aString.indexOf( '"',nPosL);
+                                if (nPosU > nPosL)
+                                {
+                                    bForceUTF16 = true;
+                                }
+                            }
+                            if ( bForceUTF16 )
+                            {
+                                OUString aNewString = aString.replaceAt( nPosL,nPosU-nPosL,"UTF-16");
+                                pStrm.reset(new SvMemoryStream( const_cast<sal_Unicode *>(aNewString.getStr()), aNewString.getLength() * sizeof(sal_Unicode), StreamMode::READ));
+                            }
+                            else
+                            {
+                                pStrm.reset(new SvMemoryStream( const_cast<sal_Unicode *>(aString.getStr()), aString.getLength() * sizeof(sal_Unicode), StreamMode::READ));
+                            }
+                            uno::Reference<io::XInputStream> xStrm2( new ::utl::OInputStreamWrapper(*pStrm) );
+                            pClipboardMedium->setStreamToLoadFrom(xStrm2, true /*bIsReadOnly*/);
+                            InsertFrom(*pClipboardMedium);
+                            GetDoc()->UpdateText();
+                        }
+                    }
+                }
+            }
+            break;
+        }
+
+        case SID_NEXTERR:
+            NextError();
+            if (pWin)
+                pWin->GrabFocus();
+            break;
+
+        case SID_PREVERR:
+            PrevError();
+            if (pWin)
+                pWin->GrabFocus();
+            break;
+
+        case SID_NEXTMARK:
+            if (pWin)
+            {
+                pWin->SelNextMark();
+                pWin->GrabFocus();
+            }
+            break;
+
+        case SID_PREVMARK:
+            if (pWin)
+            {
+                pWin->SelPrevMark();
+                pWin->GrabFocus();
+            }
+            break;
+
+        case SID_TEXTSTATUS:
+        {
+            if (rReq.GetArgs() != nullptr)
+            {
+                const SfxStringItem& rItem =
+                    static_cast<const SfxStringItem&>(rReq.GetArgs()->Get(SID_TEXTSTATUS));
+
+                SetStatusText(rItem.GetValue());
+            }
+
+            break;
+        }
+
+        case SID_GETEDITTEXT:
+            if (pWin && !pWin->GetText().isEmpty())
+                GetDoc()->SetText( pWin->GetText() );
+            break;
+
+        case SID_ATTR_ZOOM:
+        {
+            if ( !GetViewFrame()->GetFrame().IsInPlace() )
+            {
+                const SfxItemSet *pSet = rReq.GetArgs();
+                if ( pSet )
+                {
+                    ZoomByItemSet(pSet);
+                }
+                else
+                {
+                    SfxItemSet aSet( SmDocShell::GetPool(), svl::Items<SID_ATTR_ZOOM, SID_ATTR_ZOOM>{});
+                    aSet.Put( SvxZoomItem( SvxZoomType::PERCENT, mpGraphic->GetZoom()));
+                    SvxAbstractDialogFactory* pFact = SvxAbstractDialogFactory::Create();
+                    ScopedVclPtr<AbstractSvxZoomDialog> xDlg(pFact->CreateSvxZoomDialog(GetViewFrame()->GetWindow().GetFrameWeld(), aSet));
+                    xDlg->SetLimits( MINZOOM, MAXZOOM );
+                    if (xDlg->Execute() != RET_CANCEL)
+                        ZoomByItemSet(xDlg->GetOutputItemSet());
+                }
+            }
+        }
+        break;
+
+        case SID_ATTR_ZOOMSLIDER:
+        {
+            const SfxItemSet *pArgs = rReq.GetArgs();
+            const SfxPoolItem* pItem;
+
+            if ( pArgs && SfxItemState::SET == pArgs->GetItemState(SID_ATTR_ZOOMSLIDER, true, &pItem ) )
+            {
+                const sal_uInt16 nCurrentZoom = static_cast<const SvxZoomSliderItem *>(pItem)->GetValue();
+                mpGraphic->SetZoom( nCurrentZoom );
+            }
+        }
+        break;
+
+        case SID_ELEMENTSDOCKINGWINDOW:
+        {
+            GetViewFrame()->ToggleChildWindow( SmElementsDockingWindowWrapper::GetChildWindowId() );
+            GetViewFrame()->GetBindings().Invalidate( SID_ELEMENTSDOCKINGWINDOW );
+
+            rReq.Ignore ();
+        }
+        break;
+
+        case SID_UNICODE_NOTATION_TOGGLE:
+        {
+            EditEngine* pEditEngine = nullptr;
+            if( pWin )
+                pEditEngine = pWin->GetEditEngine();
+
+            EditView* pEditView = nullptr;
+            if( pEditEngine )
+                pEditView = pEditEngine->GetView();
+
+            if( pEditView )
+            {
+                const OUString sInput = pEditView->GetSurroundingText();
+                ESelection aSel(  pWin->GetSelection() );
+
+                if ( aSel.nStartPos > aSel.nEndPos )
+                    aSel.nEndPos = aSel.nStartPos;
+
+                //calculate a valid end-position by reading logical characters
+                sal_Int32 nUtf16Pos=0;
+                while( (nUtf16Pos < sInput.getLength()) && (nUtf16Pos < aSel.nEndPos) )
+                {
+                    sInput.iterateCodePoints(&nUtf16Pos);
+                    if( nUtf16Pos > aSel.nEndPos )
+                        aSel.nEndPos = nUtf16Pos;
+                }
+
+                ToggleUnicodeCodepoint aToggle;
+                while( nUtf16Pos && aToggle.AllowMoreInput( sInput[nUtf16Pos-1]) )
+                    --nUtf16Pos;
+                const OUString sReplacement = aToggle.ReplacementString();
+                if( !sReplacement.isEmpty() )
+                {
+                    pEditView->SetSelection( aSel );
+                    pEditEngine->UndoActionStart(EDITUNDO_REPLACEALL);
+                    aSel.nStartPos = aSel.nEndPos - aToggle.StringToReplace().getLength();
+                    pWin->SetSelection( aSel );
+                    pEditView->InsertText( sReplacement, true );
+                    pEditEngine->UndoActionEnd();
+                    pWin->Flush();
+                }
+            }
+        }
+        break;
+
+        case SID_SYMBOLS_CATALOGUE:
+        {
+
+            // get device used to retrieve the FontList
+            SmDocShell *pDoc = GetDoc();
+            OutputDevice *pDev = pDoc->GetPrinter();
+            if (!pDev || pDev->GetDevFontCount() == 0)
+                pDev = &SM_MOD()->GetDefaultVirtualDev();
+            SAL_WARN_IF( !pDev, "starmath", "device for font list missing" );
+
+            SmModule *pp = SM_MOD();
+            SmSymbolDialog aDialog(pWin ? pWin->GetFrameWeld() : nullptr, pDev, pp->GetSymbolManager(), *this);
+            aDialog.run();
+        }
+        break;
+    }
+    rReq.Done();
+}
+
+
+void SmViewShell::GetState(SfxItemSet &rSet)
+{
+    SfxWhichIter aIter(rSet);
+
+    SmEditWindow *pEditWin = GetEditWindow();
+    for (sal_uInt16 nWh = aIter.FirstWhich(); nWh != 0; nWh = aIter.NextWhich())
+    {
+        switch (nWh)
+        {
+        case SID_CUT:
+        case SID_COPY:
+        case SID_DELETE:
+            if (! pEditWin || ! pEditWin->IsSelected())
+                rSet.DisableItem(nWh);
+            break;
+
+        case SID_PASTE:
+            if (pEditWin)
+            {
+                TransferableDataHelper aDataHelper(
+                        TransferableDataHelper::CreateFromSystemClipboard(
+                                                        pEditWin) );
+
+                mbPasteState = aDataHelper.GetTransferable().is() &&
+                 ( aDataHelper.HasFormat( SotClipboardFormatId::STRING ) ||
+                   aDataHelper.HasFormat( SotClipboardFormatId::EMBEDDED_OBJ ) ||
+                   (aDataHelper.HasFormat( SotClipboardFormatId::OBJECTDESCRIPTOR )
+                      && aDataHelper.HasFormat( SotClipboardFormatId::EMBED_SOURCE )));
+            }
+            if( !mbPasteState )
+                rSet.DisableItem( nWh );
+            break;
+
+        case SID_ATTR_ZOOM:
+            rSet.Put(SvxZoomItem( SvxZoomType::PERCENT, mpGraphic->GetZoom()));
+            [[fallthrough]];
+        case SID_ZOOMIN:
+        case SID_ZOOMOUT:
+        case SID_ZOOM_OPTIMAL:
+            if ( GetViewFrame()->GetFrame().IsInPlace() )
+                rSet.DisableItem( nWh );
+            break;
+
+        case SID_ATTR_ZOOMSLIDER :
+            {
+                const sal_uInt16 nCurrentZoom = mpGraphic->GetZoom();
+                SvxZoomSliderItem aZoomSliderItem( nCurrentZoom, MINZOOM, MAXZOOM );
+                aZoomSliderItem.AddSnappingPoint( 100 );
+                rSet.Put( aZoomSliderItem );
+            }
+        break;
+
+        case SID_NEXTERR:
+        case SID_PREVERR:
+        case SID_NEXTMARK:
+        case SID_PREVMARK:
+        case SID_DRAW:
+        case SID_SELECT:
+            if (! pEditWin || pEditWin->IsEmpty())
+                rSet.DisableItem(nWh);
+            break;
+
+        case SID_TEXTSTATUS:
+            {
+                rSet.Put(SfxStringItem(nWh, maStatusText));
+            }
+            break;
+
+        case SID_FORMULACURSOR:
+            {
+                SmModule *pp = SM_MOD();
+                rSet.Put(SfxBoolItem(nWh, pp->GetConfig()->IsShowFormulaCursor()));
+            }
+            break;
+        case SID_ELEMENTSDOCKINGWINDOW:
+            {
+                bool bState = false;
+                SfxChildWindow *pChildWnd = GetViewFrame()->
+                        GetChildWindow( SmElementsDockingWindowWrapper::GetChildWindowId() );
+                if (pChildWnd  &&  pChildWnd->GetWindow()->IsVisible())
+                    bState = true;
+                rSet.Put(SfxBoolItem(SID_ELEMENTSDOCKINGWINDOW, bState));
+            }
+            break;
+        }
+    }
+}
+
+SmViewShell::SmViewShell(SfxViewFrame *pFrame_, SfxViewShell *)
+    : SfxViewShell(pFrame_, SfxViewShellFlags::HAS_PRINTOPTIONS)
+    , mpImpl(new SmViewShell_Impl)
+    , mpGraphic(VclPtr<SmGraphicWindow>::Create(this))
+    , maGraphicController(*mpGraphic, SID_GAPHIC_SM, pFrame_->GetBindings())
+    , mbPasteState(false)
+    , mbInsertIntoEditWindow(false)
+{
+    SetStatusText(OUString());
+    SetWindow(mpGraphic.get());
+    SfxShell::SetName("SmView");
+    SfxShell::SetUndoManager( &GetDoc()->GetEditEngine().GetUndoManager() );
+}
+
+
+SmViewShell::~SmViewShell()
+{
+    //!! this view shell is not active anymore !!
+    // Thus 'SmGetActiveView' will give a 0 pointer.
+    // Thus we need to supply this view as argument
+    SmEditWindow *pEditWin = GetEditWindow();
+    if (pEditWin)
+        pEditWin->DeleteEditView();
+    mpGraphic.disposeAndClear();
+}
+
+void SmViewShell::Deactivate( bool bIsMDIActivate )
+{
+    SmEditWindow *pEdit = GetEditWindow();
+    if ( pEdit )
+        pEdit->Flush();
+
+    SfxViewShell::Deactivate( bIsMDIActivate );
+}
+
+void SmViewShell::Activate( bool bIsMDIActivate )
+{
+    SfxViewShell::Activate( bIsMDIActivate );
+
+    SmEditWindow *pEdit = GetEditWindow();
+    if ( pEdit )
+    {
+        //! Since there is no way to be informed if a "drag and drop"
+        //! event has taken place, we call SetText here in order to
+        //! synchronize the GraphicWindow display with the text in the
+        //! EditEngine.
+        SmDocShell *pDoc = GetDoc();
+        pDoc->SetText( pDoc->GetEditEngine().GetText() );
+
+        if ( bIsMDIActivate )
+            pEdit->GrabFocus();
+    }
+}
+
+IMPL_LINK( SmViewShell, DialogClosedHdl, sfx2::FileDialogHelper*, _pFileDlg, void )
+{
+    assert(_pFileDlg && "SmViewShell::DialogClosedHdl(): no file dialog");
+    assert(mpImpl->pDocInserter && "ScDocShell::DialogClosedHdl(): no document inserter");
+
+    if ( ERRCODE_NONE == _pFileDlg->GetError() )
+    {
+        std::unique_ptr<SfxMedium> pMedium = mpImpl->pDocInserter->CreateMedium();
+
+        if ( pMedium )
+        {
+            if ( pMedium->IsStorage() )
+                Insert( *pMedium );
+            else
+                InsertFrom( *pMedium );
+            pMedium.reset();
+
+            SmDocShell* pDoc = GetDoc();
+            pDoc->UpdateText();
+            pDoc->ArrangeFormula();
+            pDoc->Repaint();
+            // adjust window, repaint, increment ModifyCount,...
+            GetViewFrame()->GetBindings().Invalidate(SID_GAPHIC_SM);
+        }
+    }
+
+    mpImpl->pRequest->SetReturnValue( SfxBoolItem( mpImpl->pRequest->GetSlot(), true ) );
+    mpImpl->pRequest->Done();
+}
+
+void SmViewShell::Notify( SfxBroadcaster& , const SfxHint& rHint )
+{
+    switch( rHint.GetId() )
+    {
+        case SfxHintId::ModeChanged:
+        case SfxHintId::DocChanged:
+            GetViewFrame()->GetBindings().InvalidateAll(false);
+        break;
+        default:
+        break;
+    }
+}
+
+bool SmViewShell::IsInlineEditEnabled() const
+{
+    return mpImpl->aOpts.IsExperimentalMode();
+}
+
+void SmViewShell::ZoomByItemSet(const SfxItemSet *pSet)
+{
+    assert(pSet);
+    const SvxZoomItem &rZoom = pSet->Get(SID_ATTR_ZOOM);
+    switch( rZoom.GetType() )
+    {
+        case SvxZoomType::PERCENT:
+            mpGraphic->SetZoom(sal::static_int_cast<sal_uInt16>(rZoom.GetValue ()));
+            break;
+
+        case SvxZoomType::OPTIMAL:
+            mpGraphic->ZoomToFitInWindow();
+            break;
+
+        case SvxZoomType::PAGEWIDTH:
+        case SvxZoomType::WHOLEPAGE:
+        {
+            const MapMode aMap( MapUnit::Map100thMM );
+            SfxPrinter *pPrinter = GetPrinter( true );
+            tools::Rectangle  OutputRect(Point(), pPrinter->GetOutputSize());
+            Size       OutputSize(pPrinter->LogicToPixel(Size(OutputRect.GetWidth(),
+                                                              OutputRect.GetHeight()), aMap));
+            Size       GraphicSize(pPrinter->LogicToPixel(GetDoc()->GetSize(), aMap));
+            sal_uInt16 nZ = sal::static_int_cast<sal_uInt16>(std::min(long(Fraction(OutputSize.Width()  * 100, GraphicSize.Width())),
+                                                                      long(Fraction(OutputSize.Height() * 100, GraphicSize.Height()))));
+            mpGraphic->SetZoom (nZ);
+            break;
+        }
+        default:
+            break;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/visitors.cxx b/starmath/source/visitors.cxx
new file mode 100644
index 000000000..5362551fe
--- /dev/null
+++ b/starmath/source/visitors.cxx
@@ -0,0 +1,2425 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <rtl/math.hxx>
+#include <sal/log.hxx>
+#include <tools/gen.hxx>
+#include <vcl/lineinfo.hxx>
+#include <visitors.hxx>
+#include "tmpdevice.hxx"
+#include <cursor.hxx>
+#include <cassert>
+
+// SmDefaultingVisitor
+
+void SmDefaultingVisitor::Visit( SmTableNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmBraceNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmBracebodyNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmOperNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmAlignNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmAttributNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmFontNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmUnHorNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmBinHorNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmBinVerNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmBinDiagonalNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmSubSupNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmMatrixNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmPlaceNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmTextNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmSpecialNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmGlyphSpecialNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmMathSymbolNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmBlankNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmErrorNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmLineNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmExpressionNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmPolyLineNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmRootNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmRootSymbolNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmRectangleNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+void SmDefaultingVisitor::Visit( SmVerticalBraceNode* pNode )
+{
+    DefaultVisit( pNode );
+}
+
+// SmCaretDrawingVisitor
+
+SmCaretDrawingVisitor::SmCaretDrawingVisitor( OutputDevice& rDevice,
+                                             SmCaretPos position,
+                                             Point offset,
+                                             bool caretVisible )
+    : mrDev( rDevice )
+    , maPos( position )
+    , maOffset( offset )
+    , mbCaretVisible( caretVisible )
+{
+    SAL_WARN_IF( !position.IsValid(), "starmath", "Cannot draw invalid position!" );
+    if( !position.IsValid( ) )
+        return;
+
+    //Save device state
+    mrDev.Push( PushFlags::FONT | PushFlags::MAPMODE | PushFlags::LINECOLOR | PushFlags::FILLCOLOR | PushFlags::TEXTCOLOR );
+
+    maPos.pSelectedNode->Accept( this );
+    //Restore device state
+    mrDev.Pop( );
+}
+
+void SmCaretDrawingVisitor::Visit( SmTextNode* pNode )
+{
+    long i = maPos.nIndex;
+
+    mrDev.SetFont( pNode->GetFont( ) );
+
+    //Find the line
+    SmNode* pLine = SmCursor::FindTopMostNodeInLine( pNode );
+
+    //Find coordinates
+    long left = pNode->GetLeft( ) + mrDev.GetTextWidth( pNode->GetText( ), 0, i ) + maOffset.X( );
+    long top = pLine->GetTop( ) + maOffset.Y( );
+    long height = pLine->GetHeight( );
+    long left_line = pLine->GetLeft( ) + maOffset.X( );
+    long right_line = pLine->GetRight( ) + maOffset.X( );
+
+    //Set color
+    mrDev.SetLineColor( COL_BLACK );
+
+    if ( mbCaretVisible ) {
+        //Draw vertical line
+        Point p1( left, top );
+        Point p2( left, top + height );
+        mrDev.DrawLine( p1, p2 );
+    }
+
+    //Underline the line
+    Point aLeft( left_line, top + height );
+    Point aRight( right_line, top + height );
+    mrDev.DrawLine( aLeft, aRight );
+}
+
+void SmCaretDrawingVisitor::DefaultVisit( SmNode* pNode )
+{
+    //Find the line
+    SmNode* pLine = SmCursor::FindTopMostNodeInLine( pNode );
+
+    //Find coordinates
+    long left = pNode->GetLeft( ) + maOffset.X( ) + ( maPos.nIndex == 1 ? pNode->GetWidth( ) : 0 );
+    long top = pLine->GetTop( ) + maOffset.Y( );
+    long height = pLine->GetHeight( );
+    long left_line = pLine->GetLeft( ) + maOffset.X( );
+    long right_line = pLine->GetRight( ) + maOffset.X( );
+
+    //Set color
+    mrDev.SetLineColor( COL_BLACK );
+
+    if ( mbCaretVisible ) {
+        //Draw vertical line
+        Point p1( left, top );
+        Point p2( left, top + height );
+        mrDev.DrawLine( p1, p2 );
+    }
+
+    //Underline the line
+    Point aLeft( left_line, top + height );
+    Point aRight( right_line, top + height );
+    mrDev.DrawLine( aLeft, aRight );
+}
+
+// SmCaretPos2LineVisitor
+
+void SmCaretPos2LineVisitor::Visit( SmTextNode* pNode )
+{
+    //Save device state
+    mpDev->Push( PushFlags::FONT | PushFlags::TEXTCOLOR );
+
+    long i = maPos.nIndex;
+
+    mpDev->SetFont( pNode->GetFont( ) );
+
+    //Find coordinates
+    long left = pNode->GetLeft( ) + mpDev->GetTextWidth( pNode->GetText( ), 0, i );
+    long top = pNode->GetTop( );
+    long height = pNode->GetHeight( );
+
+    maLine = SmCaretLine( left, top, height );
+
+    //Restore device state
+    mpDev->Pop( );
+}
+
+void SmCaretPos2LineVisitor::DefaultVisit( SmNode* pNode )
+{
+    //Vertical line ( code from SmCaretDrawingVisitor )
+    Point p1 = pNode->GetTopLeft( );
+    if( maPos.nIndex == 1 )
+        p1.Move( pNode->GetWidth( ), 0 );
+
+    maLine = SmCaretLine( p1.X( ), p1.Y( ), pNode->GetHeight( ) );
+}
+
+
+// SmDrawingVisitor
+
+void SmDrawingVisitor::Visit( SmTableNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmBraceNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmBracebodyNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmOperNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmAlignNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmAttributNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmFontNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmUnHorNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmBinHorNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmBinVerNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmBinDiagonalNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmSubSupNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmMatrixNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmPlaceNode* pNode )
+{
+    DrawSpecialNode( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmTextNode* pNode )
+{
+    DrawTextNode( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmSpecialNode* pNode )
+{
+    DrawSpecialNode( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmGlyphSpecialNode* pNode )
+{
+    DrawSpecialNode( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmMathSymbolNode* pNode )
+{
+    DrawSpecialNode( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmBlankNode* )
+{
+}
+
+void SmDrawingVisitor::Visit( SmErrorNode* pNode )
+{
+    DrawSpecialNode( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmLineNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmExpressionNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmRootNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmVerticalBraceNode* pNode )
+{
+    DrawChildren( pNode );
+}
+
+void SmDrawingVisitor::Visit( SmRootSymbolNode* pNode )
+{
+    if ( pNode->IsPhantom( ) )
+        return;
+
+    // draw root-sign itself
+    DrawSpecialNode( pNode );
+
+    SmTmpDevice aTmpDev( mrDev, true );
+    aTmpDev.SetFillColor( pNode->GetFont( ).GetColor( ) );
+    mrDev.SetLineColor( );
+    aTmpDev.SetFont( pNode->GetFont( ) );
+
+    // since the width is always unscaled it corresponds to the _original_
+    // _unscaled_ font height to be used, we use that to calculate the
+    // bar height. Thus it is independent of the arguments height.
+    // ( see display of sqrt QQQ versus sqrt stack{Q#Q#Q#Q} )
+    long nBarHeight = pNode->GetWidth( ) * 7 / 100;
+    long nBarWidth = pNode->GetBodyWidth( ) + pNode->GetBorderWidth( );
+    Point aBarOffset( pNode->GetWidth( ), +pNode->GetBorderWidth( ) );
+    Point aBarPos( maPosition + aBarOffset );
+
+    tools::Rectangle  aBar( aBarPos, Size( nBarWidth, nBarHeight ) );
+    //! avoid GROWING AND SHRINKING of drawn rectangle when constantly
+    //! increasing zoomfactor.
+    //  This is done by shifting its output-position to a point that
+    //  corresponds exactly to a pixel on the output device.
+    Point  aDrawPos( mrDev.PixelToLogic( mrDev.LogicToPixel( aBar.TopLeft( ) ) ) );
+    aBar.SetPos( aDrawPos );
+
+    mrDev.DrawRect( aBar );
+}
+
+void SmDrawingVisitor::Visit( SmPolyLineNode* pNode )
+{
+    if ( pNode->IsPhantom( ) )
+        return;
+
+    long nBorderwidth = pNode->GetFont( ).GetBorderWidth( );
+
+    LineInfo  aInfo;
+    aInfo.SetWidth( pNode->GetWidth( ) - 2 * nBorderwidth );
+
+    Point aOffset ( Point( ) - pNode->GetPolygon( ).GetBoundRect( ).TopLeft( )
+                   + Point( nBorderwidth, nBorderwidth ) ),
+          aPos ( maPosition + aOffset );
+    pNode->GetPolygon( ).Move( aPos.X( ), aPos.Y( ) );    //Works because Polygon wraps a pointer
+
+    SmTmpDevice aTmpDev ( mrDev, false );
+    aTmpDev.SetLineColor( pNode->GetFont( ).GetColor( ) );
+
+    mrDev.DrawPolyLine( pNode->GetPolygon( ), aInfo );
+}
+
+void SmDrawingVisitor::Visit( SmRectangleNode* pNode )
+{
+    if ( pNode->IsPhantom( ) )
+        return;
+
+    SmTmpDevice aTmpDev ( mrDev, false );
+    aTmpDev.SetFillColor( pNode->GetFont( ).GetColor( ) );
+    mrDev.SetLineColor( );
+    aTmpDev.SetFont( pNode->GetFont( ) );
+
+    sal_uLong  nTmpBorderWidth = pNode->GetFont( ).GetBorderWidth( );
+
+    // get rectangle and remove borderspace
+    tools::Rectangle  aTmp ( pNode->AsRectangle( ) + maPosition - pNode->GetTopLeft( ) );
+    aTmp.AdjustLeft(nTmpBorderWidth );
+    aTmp.AdjustRight( -sal_Int32(nTmpBorderWidth) );
+    aTmp.AdjustTop(nTmpBorderWidth );
+    aTmp.AdjustBottom( -sal_Int32(nTmpBorderWidth) );
+
+    SAL_WARN_IF( aTmp.IsEmpty(), "starmath", "Empty rectangle" );
+
+    //! avoid GROWING AND SHRINKING of drawn rectangle when constantly
+    //! increasing zoomfactor.
+    //  This is done by shifting its output-position to a point that
+    //  corresponds exactly to a pixel on the output device.
+    Point  aPos ( mrDev.PixelToLogic( mrDev.LogicToPixel( aTmp.TopLeft( ) ) ) );
+    aTmp.SetPos( aPos );
+
+    mrDev.DrawRect( aTmp );
+}
+
+void SmDrawingVisitor::DrawTextNode( SmTextNode* pNode )
+{
+    if ( pNode->IsPhantom() || pNode->GetText().isEmpty() || pNode->GetText()[0] == '\0' )
+        return;
+
+    SmTmpDevice aTmpDev ( mrDev, false );
+    aTmpDev.SetFont( pNode->GetFont( ) );
+
+    Point  aPos ( maPosition );
+    aPos.AdjustY(pNode->GetBaselineOffset( ) );
+    // round to pixel coordinate
+    aPos = mrDev.PixelToLogic( mrDev.LogicToPixel( aPos ) );
+
+    mrDev.DrawStretchText( aPos, pNode->GetWidth( ), pNode->GetText( ) );
+}
+
+void SmDrawingVisitor::DrawSpecialNode( SmSpecialNode* pNode )
+{
+    //! since this chars might come from any font, that we may not have
+    //! set to ALIGN_BASELINE yet, we do it now.
+    pNode->GetFont( ).SetAlignment( ALIGN_BASELINE );
+
+    DrawTextNode( pNode );
+}
+
+void SmDrawingVisitor::DrawChildren( SmStructureNode* pNode )
+{
+    if ( pNode->IsPhantom( ) )
+        return;
+
+    Point rPosition = maPosition;
+
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        Point  aOffset ( pChild->GetTopLeft( ) - pNode->GetTopLeft( ) );
+        maPosition = rPosition + aOffset;
+        pChild->Accept( this );
+    }
+}
+
+// SmSetSelectionVisitor
+
+SmSetSelectionVisitor::SmSetSelectionVisitor( SmCaretPos startPos, SmCaretPos endPos, SmNode* pTree)
+    : maStartPos(startPos)
+    , maEndPos(endPos)
+    , mbSelecting(false)
+{
+    //Assume that pTree is a SmTableNode
+    SAL_WARN_IF(pTree->GetType() != SmNodeType::Table, "starmath", "pTree should be a SmTableNode!");
+    //Visit root node, this is special as this node cannot be selected, but its children can!
+    if(pTree->GetType() == SmNodeType::Table){
+        //Change state if maStartPos is in front of this node
+        if( maStartPos.pSelectedNode == pTree && maStartPos.nIndex == 0 )
+            mbSelecting = !mbSelecting;
+        //Change state if maEndPos is in front of this node
+        if( maEndPos.pSelectedNode == pTree && maEndPos.nIndex == 0 )
+            mbSelecting = !mbSelecting;
+        SAL_WARN_IF(mbSelecting, "starmath", "Caret positions needed to set mbSelecting about, shouldn't be possible!");
+
+        //Visit lines
+        for( auto pChild : *static_cast<SmStructureNode*>(pTree) )
+        {
+            if(!pChild)
+                continue;
+            pChild->Accept( this );
+            //If we started a selection in this line and it haven't ended, we do that now!
+            if(mbSelecting) {
+                mbSelecting = false;
+                SetSelectedOnAll(pChild);
+                //Set maStartPos and maEndPos to invalid positions, this ensures that an unused
+                //start or end (because we forced end above), doesn't start a new selection.
+                maStartPos = maEndPos = SmCaretPos();
+            }
+        }
+        //Check if pTree isn't selected
+        SAL_WARN_IF(pTree->IsSelected(), "starmath", "pTree should never be selected!");
+        //Discard the selection if there's a bug (it's better than crashing)
+        if(pTree->IsSelected())
+            SetSelectedOnAll(pTree, false);
+    }else //This shouldn't happen, but I don't see any reason to die if it does
+        pTree->Accept(this);
+}
+
+void SmSetSelectionVisitor::SetSelectedOnAll( SmNode* pSubTree, bool IsSelected ) {
+    pSubTree->SetSelected( IsSelected );
+
+    if(pSubTree->GetNumSubNodes() == 0)
+        return;
+    //Quick BFS to set all selections
+    for( auto pChild : *static_cast<SmStructureNode*>(pSubTree) )
+    {
+        if(!pChild)
+            continue;
+        SetSelectedOnAll( pChild, IsSelected );
+    }
+}
+
+void SmSetSelectionVisitor::DefaultVisit( SmNode* pNode ) {
+    //Change state if maStartPos is in front of this node
+    if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 0 )
+        mbSelecting = !mbSelecting;
+    //Change state if maEndPos is in front of this node
+    if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 0 )
+        mbSelecting = !mbSelecting;
+
+    //Cache current state
+    bool WasSelecting = mbSelecting;
+    bool ChangedState = false;
+
+    //Set selected
+    pNode->SetSelected( mbSelecting );
+
+    //Visit children
+    if(pNode->GetNumSubNodes() > 0)
+    {
+        for( auto pChild : *static_cast<SmStructureNode*>(pNode) )
+        {
+            if(!pChild)
+                continue;
+            pChild->Accept( this );
+            ChangedState = ( WasSelecting != mbSelecting ) || ChangedState;
+        }
+    }
+
+    //If state changed
+    if( ChangedState )
+    {
+        //Select this node and all of its children
+        //(Make exception for SmBracebodyNode)
+        if( pNode->GetType() != SmNodeType::Bracebody ||
+            !pNode->GetParent() ||
+            pNode->GetParent()->GetType() != SmNodeType::Brace )
+            SetSelectedOnAll( pNode );
+        else
+            SetSelectedOnAll( pNode->GetParent() );
+        /* If the equation is:      sqrt{2 + 4} + 5
+         * And the selection is:    sqrt{2 + [4} +] 5
+         *      Where [ denotes maStartPos and ] denotes maEndPos
+         * Then the sqrt node should be selected, so that the
+         * effective selection is:  [sqrt{2 + 4} +] 5
+         * The same is the case if we swap maStartPos and maEndPos.
+         */
+    }
+
+    //Change state if maStartPos is after this node
+    if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 1 )
+    {
+        mbSelecting = !mbSelecting;
+    }
+    //Change state if maEndPos is after of this node
+    if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 1 )
+    {
+        mbSelecting = !mbSelecting;
+    }
+}
+
+void SmSetSelectionVisitor::VisitCompositionNode( SmStructureNode* pNode )
+{
+    //Change state if maStartPos is in front of this node
+    if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 0 )
+        mbSelecting = !mbSelecting;
+    //Change state if maEndPos is in front of this node
+    if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 0 )
+        mbSelecting = !mbSelecting;
+
+    //Cache current state
+    bool WasSelecting = mbSelecting;
+
+    //Visit children
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+
+    //Set selected, if everything was selected
+    pNode->SetSelected( WasSelecting && mbSelecting );
+
+    //Change state if maStartPos is after this node
+    if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 1 )
+        mbSelecting = !mbSelecting;
+    //Change state if maEndPos is after of this node
+    if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 1 )
+        mbSelecting = !mbSelecting;
+}
+
+void SmSetSelectionVisitor::Visit( SmTextNode* pNode ) {
+    long    i1 = -1,
+            i2 = -1;
+    if( maStartPos.pSelectedNode == pNode )
+        i1 = maStartPos.nIndex;
+    if( maEndPos.pSelectedNode == pNode )
+        i2 = maEndPos.nIndex;
+
+    long start, end;
+    pNode->SetSelected(true);
+    if( i1 != -1 && i2 != -1 ) {
+        start = std::min(i1, i2);
+        end   = std::max(i1, i2);
+    } else if( mbSelecting && i1 != -1 ) {
+        start = 0;
+        end = i1;
+        mbSelecting = false;
+    } else if( mbSelecting && i2 != -1 ) {
+        start = 0;
+        end = i2;
+        mbSelecting = false;
+    } else if( !mbSelecting && i1 != -1 ) {
+        start = i1;
+        end = pNode->GetText().getLength();
+        mbSelecting = true;
+    } else if( !mbSelecting && i2 != -1 ) {
+        start = i2;
+        end = pNode->GetText().getLength();
+        mbSelecting = true;
+    } else if( mbSelecting ) {
+        start = 0;
+        end = pNode->GetText().getLength();
+    } else {
+        pNode->SetSelected( false );
+        start = 0;
+        end = 0;
+    }
+    pNode->SetSelected( start != end );
+    pNode->SetSelectionStart( start );
+    pNode->SetSelectionEnd( end );
+}
+
+void SmSetSelectionVisitor::Visit( SmExpressionNode* pNode ) {
+    VisitCompositionNode( pNode );
+}
+
+void SmSetSelectionVisitor::Visit( SmLineNode* pNode ) {
+    VisitCompositionNode( pNode );
+}
+
+void SmSetSelectionVisitor::Visit( SmAlignNode* pNode ) {
+    VisitCompositionNode( pNode );
+}
+
+void SmSetSelectionVisitor::Visit( SmBinHorNode* pNode ) {
+    VisitCompositionNode( pNode );
+}
+
+void SmSetSelectionVisitor::Visit( SmUnHorNode* pNode ) {
+    VisitCompositionNode( pNode );
+}
+
+void SmSetSelectionVisitor::Visit( SmFontNode* pNode ) {
+    VisitCompositionNode( pNode );
+}
+
+// SmCaretPosGraphBuildingVisitor
+
+SmCaretPosGraphBuildingVisitor::SmCaretPosGraphBuildingVisitor( SmNode* pRootNode )
+    : mpRightMost(nullptr)
+    , mpGraph(new SmCaretPosGraph)
+{
+    //pRootNode should always be a table
+    SAL_WARN_IF( pRootNode->GetType( ) != SmNodeType::Table, "starmath", "pRootNode must be a table node");
+    //Handle the special case where SmNodeType::Table is used a rootnode
+    if( pRootNode->GetType( ) == SmNodeType::Table ){
+        //Children are SmLineNodes
+        //Or so I thought... Apparently, the children can be instances of SmExpression
+        //especially if there's an error in the formula... So here we go, a simple work around.
+        for( auto pChild : *static_cast<SmStructureNode*>(pRootNode) )
+        {
+            if(!pChild)
+                continue;
+            mpRightMost = mpGraph->Add( SmCaretPos( pChild, 0 ) );
+            pChild->Accept( this );
+        }
+    }else
+        pRootNode->Accept(this);
+}
+
+SmCaretPosGraphBuildingVisitor::~SmCaretPosGraphBuildingVisitor()
+{
+}
+
+void SmCaretPosGraphBuildingVisitor::Visit( SmLineNode* pNode ){
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+
+/** Build SmCaretPosGraph for SmTableNode
+ * This method covers cases where SmTableNode is used in a binom or stack,
+ * the special case where it is used as root node for the entire formula is
+ * handled in the constructor.
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmTableNode* pNode ){
+    SmCaretPosGraphEntry *left  = mpRightMost,
+                         *right = mpGraph->Add( SmCaretPos( pNode, 1) );
+    bool bIsFirst = true;
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        mpRightMost = mpGraph->Add( SmCaretPos( pChild, 0 ), left);
+        if(bIsFirst)
+            left->SetRight(mpRightMost);
+        pChild->Accept( this );
+        mpRightMost->SetRight(right);
+        if(bIsFirst)
+            right->SetLeft(mpRightMost);
+        bIsFirst = false;
+    }
+    mpRightMost = right;
+}
+
+/** Build SmCaretPosGraph for SmSubSupNode
+ *
+ * The child positions in a SubSupNode, where H is the body:
+ * \code
+ *      CSUP
+ *
+ * LSUP H  H RSUP
+ *      H  H
+ *      HHHH
+ *      H  H
+ * LSUB H  H RSUB
+ *
+ *      CSUB
+ * \endcode
+ *
+ * Graph over these, where "left" is before the SmSubSupNode and "right" is after:
+ * \dot
+ *  digraph Graph{
+ *      left -> H;
+ *      H -> right;
+ *      LSUP -> H;
+ *      LSUB -> H;
+ *      CSUP -> right;
+ *      CSUB -> right;
+ *      RSUP -> right;
+ *      RSUB -> right;
+ *  };
+ * \enddot
+ *
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmSubSupNode* pNode )
+{
+    SmCaretPosGraphEntry *left,
+                         *right,
+                         *bodyLeft,
+                         *bodyRight;
+
+    assert(mpRightMost);
+    left = mpRightMost;
+
+    //Create bodyLeft
+    SAL_WARN_IF( !pNode->GetBody(), "starmath", "SmSubSupNode Doesn't have a body!" );
+    bodyLeft = mpGraph->Add( SmCaretPos( pNode->GetBody( ), 0 ), left );
+    left->SetRight( bodyLeft ); //TODO: Don't make this if LSUP or LSUB are NULL ( not sure??? )
+
+    //Create right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    //Visit the body, to get bodyRight
+    mpRightMost = bodyLeft;
+    pNode->GetBody( )->Accept( this );
+    bodyRight = mpRightMost;
+    bodyRight->SetRight( right );
+    right->SetLeft( bodyRight );
+
+    //If there's an LSUP
+    SmNode* pChild = pNode->GetSubSup( LSUP );
+    if( pChild ){
+        SmCaretPosGraphEntry *cLeft; //Child left
+        cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+
+        mpRightMost = cLeft;
+        pChild->Accept( this );
+
+        mpRightMost->SetRight( bodyLeft );
+    }
+    //If there's an LSUB
+    pChild = pNode->GetSubSup( LSUB );
+    if( pChild ){
+        SmCaretPosGraphEntry *cLeft; //Child left
+        cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+
+        mpRightMost = cLeft;
+        pChild->Accept( this );
+
+        mpRightMost->SetRight( bodyLeft );
+    }
+    //If there's a CSUP
+    pChild = pNode->GetSubSup( CSUP );
+    if( pChild ){
+        SmCaretPosGraphEntry *cLeft; //Child left
+        cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+
+        mpRightMost = cLeft;
+        pChild->Accept( this );
+
+        mpRightMost->SetRight( right );
+    }
+    //If there's a CSUB
+    pChild = pNode->GetSubSup( CSUB );
+    if( pChild ){
+        SmCaretPosGraphEntry *cLeft; //Child left
+        cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+
+        mpRightMost = cLeft;
+        pChild->Accept( this );
+
+        mpRightMost->SetRight( right );
+    }
+    //If there's an RSUP
+    pChild = pNode->GetSubSup( RSUP );
+    if( pChild ){
+        SmCaretPosGraphEntry *cLeft; //Child left
+        cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), bodyRight );
+
+        mpRightMost = cLeft;
+        pChild->Accept( this );
+
+        mpRightMost->SetRight( right );
+    }
+    //If there's an RSUB
+    pChild = pNode->GetSubSup( RSUB );
+    if( pChild ){
+        SmCaretPosGraphEntry *cLeft; //Child left
+        cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), bodyRight );
+
+        mpRightMost = cLeft;
+        pChild->Accept( this );
+
+        mpRightMost->SetRight( right );
+    }
+
+    //Set return parameters
+    mpRightMost = right;
+}
+
+/** Build caret position for SmOperNode
+ *
+ * If first child is an SmSubSupNode we will ignore its
+ * body, as this body is a SmMathSymbol, for SUM, INT or similar
+ * that shouldn't be subject to modification.
+ * If first child is not a SmSubSupNode, ignore it completely
+ * as it is a SmMathSymbol.
+ *
+ * The child positions in a SmOperNode, where H is symbol, e.g. int, sum or similar:
+ * \code
+ *       TO
+ *
+ * LSUP H  H RSUP    BBB    BB  BBB  B   B
+ *      H  H         B  B  B  B B  B  B B
+ *      HHHH         BBB   B  B B  B   B
+ *      H  H         B  B  B  B B  B   B
+ * LSUB H  H RSUB    BBB    BB  BBB    B
+ *
+ *      FROM
+ * \endcode
+ * Notice, CSUP, etc. are actually grandchildren, but inorder to ignore H, these are visited
+ * from here. If they are present, that is if pOper is an instance of SmSubSupNode.
+ *
+ * Graph over these, where "left" is before the SmOperNode and "right" is after:
+ * \dot
+ *  digraph Graph{
+ *      left -> BODY;
+ *      BODY -> right;
+ *      LSUP -> BODY;
+ *      LSUB -> BODY;
+ *      TO   -> BODY;
+ *      FROM -> BODY;
+ *      RSUP -> BODY;
+ *      RSUB -> BODY;
+ *  };
+ * \enddot
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmOperNode* pNode )
+{
+    SmNode *pOper = pNode->GetSubNode( 0 ),
+           *pBody = pNode->GetSubNode( 1 );
+
+    SmCaretPosGraphEntry *left = mpRightMost,
+                         *bodyLeft,
+                         *bodyRight,
+                         *right;
+    //Create body left
+    bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left );
+    left->SetRight( bodyLeft );
+
+    //Visit body, get bodyRight
+    mpRightMost = bodyLeft;
+    pBody->Accept( this );
+    bodyRight = mpRightMost;
+
+    //Create right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ), bodyRight );
+    bodyRight->SetRight( right );
+
+    //Get subsup pNode if any
+    SmSubSupNode* pSubSup = pOper->GetType( ) == SmNodeType::SubSup ? static_cast<SmSubSupNode*>(pOper) : nullptr;
+
+    SmNode* pChild;
+    SmCaretPosGraphEntry *childLeft;
+    if( pSubSup ) {
+        pChild = pSubSup->GetSubSup( LSUP );
+        if( pChild ) {
+            //Create position in front of pChild
+            childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+            //Visit pChild
+            mpRightMost = childLeft;
+            pChild->Accept( this );
+            //Set right on mpRightMost from pChild
+            mpRightMost->SetRight( bodyLeft );
+        }
+
+        pChild = pSubSup->GetSubSup( LSUB );
+        if( pChild ) {
+            //Create position in front of pChild
+            childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+            //Visit pChild
+            mpRightMost = childLeft;
+            pChild->Accept( this );
+            //Set right on mpRightMost from pChild
+            mpRightMost->SetRight( bodyLeft );
+        }
+
+        pChild = pSubSup->GetSubSup( CSUP );
+        if ( pChild ) {//TO
+            //Create position in front of pChild
+            childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+            //Visit pChild
+            mpRightMost = childLeft;
+            pChild->Accept( this );
+            //Set right on mpRightMost from pChild
+            mpRightMost->SetRight( bodyLeft );
+        }
+
+        pChild = pSubSup->GetSubSup( CSUB );
+        if( pChild ) { //FROM
+            //Create position in front of pChild
+            childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+            //Visit pChild
+            mpRightMost = childLeft;
+            pChild->Accept( this );
+            //Set right on mpRightMost from pChild
+            mpRightMost->SetRight( bodyLeft );
+        }
+
+        pChild = pSubSup->GetSubSup( RSUP );
+        if ( pChild ) {
+            //Create position in front of pChild
+            childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+            //Visit pChild
+            mpRightMost = childLeft;
+            pChild->Accept( this );
+            //Set right on mpRightMost from pChild
+            mpRightMost->SetRight( bodyLeft );
+        }
+
+        pChild = pSubSup->GetSubSup( RSUB );
+        if ( pChild ) {
+            //Create position in front of pChild
+            childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left );
+            //Visit pChild
+            mpRightMost = childLeft;
+            pChild->Accept( this );
+            //Set right on mpRightMost from pChild
+            mpRightMost->SetRight( bodyLeft );
+        }
+    }
+
+    //Return right
+    mpRightMost = right;
+}
+
+void SmCaretPosGraphBuildingVisitor::Visit( SmMatrixNode* pNode )
+{
+    SmCaretPosGraphEntry *left  = mpRightMost,
+                         *right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    for (size_t i = 0;  i < pNode->GetNumRows(); ++i)
+    {
+        SmCaretPosGraphEntry* r = left;
+        for (size_t j = 0;  j < pNode->GetNumCols(); ++j)
+        {
+            SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j );
+
+            mpRightMost = mpGraph->Add( SmCaretPos( pSubNode, 0 ), r );
+            if( j != 0 || ( pNode->GetNumRows() - 1U ) / 2 == i )
+                r->SetRight( mpRightMost );
+
+            pSubNode->Accept( this );
+
+            r = mpRightMost;
+        }
+        mpRightMost->SetRight( right );
+        if( ( pNode->GetNumRows() - 1U ) / 2 == i )
+            right->SetLeft( mpRightMost );
+    }
+
+    mpRightMost = right;
+}
+
+/** Build SmCaretPosGraph for SmTextNode
+ *
+ * Lines in an SmTextNode:
+ * \code
+ * A B C
+ * \endcode
+ * Where A B and C are characters in the text.
+ *
+ * Graph over these, where "left" is before the SmTextNode and "right" is after:
+ * \dot
+ *  digraph Graph{
+ *      left -> A;
+ *      A -> B
+ *      B -> right;
+ *  };
+ * \enddot
+ * Notice that C and right is the same position here.
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmTextNode* pNode )
+{
+    SAL_WARN_IF( pNode->GetText().isEmpty(), "starmath", "Empty SmTextNode is bad" );
+
+    int size = pNode->GetText().getLength();
+    for( int i = 1; i <= size; i++ ){
+        SmCaretPosGraphEntry* pRight = mpRightMost;
+        mpRightMost = mpGraph->Add( SmCaretPos( pNode, i ), pRight );
+        pRight->SetRight( mpRightMost );
+    }
+}
+
+/** Build SmCaretPosGraph for SmBinVerNode
+ *
+ * Lines in an SmBinVerNode:
+ * \code
+ *    A
+ *  -----
+ *    B
+ * \endcode
+ *
+ * Graph over these, where "left" is before the SmBinVerNode and "right" is after:
+ * \dot
+ *  digraph Graph{
+ *      left -> A;
+ *      A -> right;
+ *      B -> right;
+ *  };
+ * \enddot
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmBinVerNode* pNode )
+{
+    //None if these children can be NULL, see SmBinVerNode::Arrange
+    SmNode  *pNum   = pNode->GetSubNode( 0 ),
+            *pDenom = pNode->GetSubNode( 2 );
+
+    SmCaretPosGraphEntry *left,
+                         *right,
+                         *numLeft,
+                         *denomLeft;
+
+    assert(mpRightMost);
+    //Set left
+    left = mpRightMost;
+
+    //Create right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    //Create numLeft
+    numLeft = mpGraph->Add( SmCaretPos( pNum, 0 ), left );
+    left->SetRight( numLeft );
+
+    //Visit pNum
+    mpRightMost = numLeft;
+    pNum->Accept( this );
+    mpRightMost->SetRight( right );
+    right->SetLeft( mpRightMost );
+
+    //Create denomLeft
+    denomLeft = mpGraph->Add( SmCaretPos( pDenom, 0 ), left );
+
+    //Visit pDenom
+    mpRightMost = denomLeft;
+    pDenom->Accept( this );
+    mpRightMost->SetRight( right );
+
+    //Set return parameter
+    mpRightMost = right;
+}
+
+/** Build SmCaretPosGraph for SmVerticalBraceNode
+ *
+ * Lines in an SmVerticalBraceNode:
+ * \code
+ *   pScript
+ *  ________
+ * /        \
+ *   pBody
+ * \endcode
+ *
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmVerticalBraceNode* pNode )
+{
+    SmNode  *pBody   = pNode->Body(),
+            *pScript = pNode->Script();
+    //None of these children can be NULL
+
+    SmCaretPosGraphEntry  *left,
+                        *bodyLeft,
+                        *scriptLeft,
+                        *right;
+
+    left = mpRightMost;
+
+    //Create right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    //Create bodyLeft
+    bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left );
+    left->SetRight( bodyLeft );
+    mpRightMost = bodyLeft;
+    pBody->Accept( this );
+    mpRightMost->SetRight( right );
+    right->SetLeft( mpRightMost );
+
+    //Create script
+    scriptLeft = mpGraph->Add( SmCaretPos( pScript, 0 ), left );
+    mpRightMost = scriptLeft;
+    pScript->Accept( this );
+    mpRightMost->SetRight( right );
+
+    //Set return value
+    mpRightMost = right;
+}
+
+/** Build SmCaretPosGraph for SmBinDiagonalNode
+ *
+ * Lines in an SmBinDiagonalNode:
+ * \code
+ *  A /
+ *   /
+ *  / B
+ * \endcode
+ * Where A and B are lines.
+ *
+ * Used in formulas such as "A wideslash B"
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmBinDiagonalNode* pNode )
+{
+    SmNode  *A = pNode->GetSubNode( 0 ),
+            *B = pNode->GetSubNode( 1 );
+
+    SmCaretPosGraphEntry  *left,
+                        *leftA,
+                        *rightA,
+                        *leftB,
+                        *right;
+    left = mpRightMost;
+
+    //Create right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    //Create left A
+    leftA = mpGraph->Add( SmCaretPos( A, 0 ), left );
+    left->SetRight( leftA );
+
+    //Visit A
+    mpRightMost = leftA;
+    A->Accept( this );
+    rightA = mpRightMost;
+
+    //Create left B
+    leftB = mpGraph->Add( SmCaretPos( B, 0 ), rightA );
+    rightA->SetRight( leftB );
+
+    //Visit B
+    mpRightMost = leftB;
+    B->Accept( this );
+    mpRightMost->SetRight( right );
+    right->SetLeft( mpRightMost );
+
+    //Set return value
+    mpRightMost = right;
+}
+
+//Straight forward ( I think )
+void SmCaretPosGraphBuildingVisitor::Visit( SmBinHorNode* pNode )
+{
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+void SmCaretPosGraphBuildingVisitor::Visit( SmUnHorNode* pNode )
+{
+    // Unary operator node
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+
+void SmCaretPosGraphBuildingVisitor::Visit( SmExpressionNode* pNode )
+{
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+
+void SmCaretPosGraphBuildingVisitor::Visit( SmFontNode* pNode )
+{
+    //Has only got one child, should act as an expression if possible
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+
+/** Build SmCaretPosGraph for SmBracebodyNode
+ * Acts as an SmExpressionNode
+ *
+ * Below is an example of a formula tree that has multiple children for SmBracebodyNode
+ * \dot
+ * digraph {
+ * labelloc = "t";
+ * label= "Equation: \"lbrace i mline i in setZ rbrace\"";
+ * n0 [label="SmTableNode"];
+ * n0 -> n1 [label="0"];
+ * n1 [label="SmLineNode"];
+ * n1 -> n2 [label="0"];
+ * n2 [label="SmExpressionNode"];
+ * n2 -> n3 [label="0"];
+ * n3 [label="SmBraceNode"];
+ * n3 -> n4 [label="0"];
+ * n4 [label="SmMathSymbolNode: {"];
+ * n3 -> n5 [label="1"];
+ * n5 [label="SmBracebodyNode"];
+ * n5 -> n6 [label="0"];
+ * n6 [label="SmExpressionNode"];
+ * n6 -> n7 [label="0"];
+ * n7 [label="SmTextNode: i"];
+ * n5 -> n8 [label="1"];
+ * n8 [label="SmMathSymbolNode: &#124;"]; // Unicode "VERTICAL LINE"
+ * n5 -> n9 [label="2"];
+ * n9 [label="SmExpressionNode"];
+ * n9 -> n10 [label="0"];
+ * n10 [label="SmBinHorNode"];
+ * n10 -> n11 [label="0"];
+ * n11 [label="SmTextNode: i"];
+ * n10 -> n12 [label="1"];
+ * n12 [label="SmMathSymbolNode: &#8712;"]; // Unicode "ELEMENT OF"
+ * n10 -> n13 [label="2"];
+ * n13 [label="SmMathSymbolNode: &#8484;"]; // Unicode "DOUBLE-STRUCK CAPITAL Z"
+ * n3 -> n14 [label="2"];
+ * n14 [label="SmMathSymbolNode: }"];
+ * }
+ * \enddot
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmBracebodyNode* pNode )
+{
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        SmCaretPosGraphEntry* pStart = mpGraph->Add( SmCaretPos( pChild, 0), mpRightMost );
+        mpRightMost->SetRight( pStart );
+        mpRightMost = pStart;
+        pChild->Accept( this );
+    }
+}
+
+/** Build SmCaretPosGraph for SmAlignNode
+ * Acts as an SmExpressionNode, as it only has one child this okay
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmAlignNode* pNode )
+{
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+
+/** Build SmCaretPosGraph for SmRootNode
+ *
+ * Lines in an SmRootNode:
+ * \code
+ *    _________
+ *  A/
+ * \/    B
+ *
+ * \endcode
+ * A: pExtra ( optional, can be NULL ),
+ * B: pBody
+ *
+ * Graph over these, where "left" is before the SmRootNode and "right" is after:
+ * \dot
+ *  digraph Graph{
+ *      left -> B;
+ *      B -> right;
+ *      A -> B;
+ *  }
+ * \enddot
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmRootNode* pNode )
+{
+    SmNode  *pExtra = pNode->GetSubNode( 0 ), //Argument, NULL for sqrt, and SmTextNode if cubicroot
+            *pBody  = pNode->GetSubNode( 2 ); //Body of the root
+    assert(pBody);
+
+    SmCaretPosGraphEntry  *left,
+                        *right,
+                        *bodyLeft,
+                        *bodyRight;
+
+    //Get left and save it
+    assert(mpRightMost);
+    left = mpRightMost;
+
+    //Create body left
+    bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left );
+    left->SetRight( bodyLeft );
+
+    //Create right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    //Visit body
+    mpRightMost = bodyLeft;
+    pBody->Accept( this );
+    bodyRight = mpRightMost;
+    bodyRight->SetRight( right );
+    right->SetLeft( bodyRight );
+
+    //Visit pExtra
+    if( pExtra ){
+        mpRightMost = mpGraph->Add( SmCaretPos( pExtra, 0 ), left );
+        pExtra->Accept( this );
+        mpRightMost->SetRight( bodyLeft );
+    }
+
+    mpRightMost = right;
+}
+
+
+/** Build SmCaretPosGraph for SmPlaceNode
+ * Consider this a single character.
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmPlaceNode* pNode )
+{
+    SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost );
+    mpRightMost->SetRight( right );
+    mpRightMost = right;
+}
+
+/** SmErrorNode is context dependent metadata, it can't be selected
+ *
+ * @remarks There's no point in deleting, copying and/or moving an instance
+ * of SmErrorNode as it may not exist in another context! Thus there are no
+ * positions to select an SmErrorNode.
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmErrorNode* )
+{
+}
+
+/** Build SmCaretPosGraph for SmBlankNode
+ * Consider this a single character, as it is only a blank space
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmBlankNode* pNode )
+{
+    SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost );
+    mpRightMost->SetRight( right );
+    mpRightMost = right;
+}
+
+/** Build SmCaretPosGraph for SmBraceNode
+ *
+ * Lines in an SmBraceNode:
+ * \code
+ * |     |
+ * |  B  |
+ * |     |
+ * \endcode
+ * B: Body
+ *
+ * Graph over these, where "left" is before the SmBraceNode and "right" is after:
+ * \dot
+ *  digraph Graph{
+ *      left -> B;
+ *      B -> right;
+ *  }
+ * \enddot
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmBraceNode* pNode )
+{
+    SmNode* pBody = pNode->Body();
+
+    SmCaretPosGraphEntry  *left = mpRightMost,
+                        *right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    if( pBody->GetType() != SmNodeType::Bracebody ) {
+        mpRightMost = mpGraph->Add( SmCaretPos( pBody, 0 ), left );
+        left->SetRight( mpRightMost );
+    }else
+        mpRightMost = left;
+
+    pBody->Accept( this );
+    mpRightMost->SetRight( right );
+    right->SetLeft( mpRightMost );
+
+    mpRightMost = right;
+}
+
+/** Build SmCaretPosGraph for SmAttributNode
+ *
+ * Lines in an SmAttributNode:
+ * \code
+ *   Attr
+ *   Body
+ * \endcode
+ *
+ * There's a body and an attribute, the construction is used for "widehat A", where "A" is the body
+ * and "^" is the attribute ( note GetScaleMode( ) on SmAttributNode tells how the attribute should be
+ * scaled ).
+ */
+void SmCaretPosGraphBuildingVisitor::Visit( SmAttributNode* pNode )
+{
+    SmNode  *pAttr = pNode->Attribute(),
+            *pBody = pNode->Body();
+    assert(pAttr);
+    assert(pBody);
+
+    SmCaretPosGraphEntry  *left = mpRightMost,
+                        *attrLeft,
+                        *bodyLeft,
+                        *bodyRight,
+                        *right;
+
+    //Creating bodyleft
+    bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left );
+    left->SetRight( bodyLeft );
+
+    //Creating right
+    right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
+
+    //Visit the body
+    mpRightMost = bodyLeft;
+    pBody->Accept( this );
+    bodyRight = mpRightMost;
+    bodyRight->SetRight( right );
+    right->SetLeft( bodyRight );
+
+    //Create attrLeft
+    attrLeft = mpGraph->Add( SmCaretPos( pAttr, 0 ), left );
+
+    //Visit attribute
+    mpRightMost = attrLeft;
+    pAttr->Accept( this );
+    mpRightMost->SetRight( right );
+
+    //Set return value
+    mpRightMost = right;
+}
+
+//Consider these single symbols
+void SmCaretPosGraphBuildingVisitor::Visit( SmSpecialNode* pNode )
+{
+    SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost );
+    mpRightMost->SetRight( right );
+    mpRightMost = right;
+}
+void SmCaretPosGraphBuildingVisitor::Visit( SmGlyphSpecialNode* pNode )
+{
+    SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost );
+    mpRightMost->SetRight( right );
+    mpRightMost = right;
+}
+void SmCaretPosGraphBuildingVisitor::Visit( SmMathSymbolNode* pNode )
+{
+    SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost );
+    mpRightMost->SetRight( right );
+    mpRightMost = right;
+}
+
+void SmCaretPosGraphBuildingVisitor::Visit( SmRootSymbolNode* )
+{
+    //Do nothing
+}
+
+void SmCaretPosGraphBuildingVisitor::Visit( SmRectangleNode* )
+{
+    //Do nothing
+}
+void SmCaretPosGraphBuildingVisitor::Visit( SmPolyLineNode* )
+{
+    //Do nothing
+}
+
+// SmCloningVisitor
+
+SmNode* SmCloningVisitor::Clone( SmNode* pNode )
+{
+    SmNode* pCurrResult = mpResult;
+    pNode->Accept( this );
+    SmNode* pClone = mpResult;
+    mpResult = pCurrResult;
+    return pClone;
+}
+
+void SmCloningVisitor::CloneNodeAttr( SmNode const * pSource, SmNode* pTarget )
+{
+    pTarget->SetScaleMode( pSource->GetScaleMode( ) );
+    //Other attributes are set when prepare or arrange is executed
+    //and may depend on stuff not being cloned here.
+}
+
+void SmCloningVisitor::CloneKids( SmStructureNode* pSource, SmStructureNode* pTarget )
+{
+    //Cache current result
+    SmNode* pCurrResult = mpResult;
+
+    //Create array for holding clones
+    size_t nSize = pSource->GetNumSubNodes( );
+    SmNodeArray aNodes( nSize );
+
+    //Clone children
+    for (size_t i = 0; i < nSize; ++i)
+    {
+        SmNode* pKid;
+        if( nullptr != ( pKid = pSource->GetSubNode( i ) ) )
+            pKid->Accept( this );
+        else
+            mpResult = nullptr;
+        aNodes[i] = mpResult;
+    }
+
+    //Set subnodes of pTarget
+    pTarget->SetSubNodes( std::move(aNodes) );
+
+    //Restore result as where prior to call
+    mpResult = pCurrResult;
+}
+
+void SmCloningVisitor::Visit( SmTableNode* pNode )
+{
+    SmTableNode* pClone = new SmTableNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmBraceNode* pNode )
+{
+    SmBraceNode* pClone = new SmBraceNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmBracebodyNode* pNode )
+{
+    SmBracebodyNode* pClone = new SmBracebodyNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmOperNode* pNode )
+{
+    SmOperNode* pClone = new SmOperNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmAlignNode* pNode )
+{
+    SmAlignNode* pClone = new SmAlignNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmAttributNode* pNode )
+{
+    SmAttributNode* pClone = new SmAttributNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmFontNode* pNode )
+{
+    SmFontNode* pClone = new SmFontNode( pNode->GetToken( ) );
+    pClone->SetSizeParameter( pNode->GetSizeParameter( ), pNode->GetSizeType( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmUnHorNode* pNode )
+{
+    SmUnHorNode* pClone = new SmUnHorNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmBinHorNode* pNode )
+{
+    SmBinHorNode* pClone = new SmBinHorNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmBinVerNode* pNode )
+{
+    SmBinVerNode* pClone = new SmBinVerNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmBinDiagonalNode* pNode )
+{
+    SmBinDiagonalNode *pClone = new SmBinDiagonalNode( pNode->GetToken( ) );
+    pClone->SetAscending( pNode->IsAscending( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmSubSupNode* pNode )
+{
+    SmSubSupNode *pClone = new SmSubSupNode( pNode->GetToken( ) );
+    pClone->SetUseLimits( pNode->IsUseLimits( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmMatrixNode* pNode )
+{
+    SmMatrixNode *pClone = new SmMatrixNode( pNode->GetToken( ) );
+    pClone->SetRowCol( pNode->GetNumRows( ), pNode->GetNumCols( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmPlaceNode* pNode )
+{
+    mpResult = new SmPlaceNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmTextNode* pNode )
+{
+    SmTextNode* pClone = new SmTextNode( pNode->GetToken( ), pNode->GetFontDesc( ) );
+    pClone->ChangeText( pNode->GetText( ) );
+    CloneNodeAttr( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmSpecialNode* pNode )
+{
+    mpResult = new SmSpecialNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmGlyphSpecialNode* pNode )
+{
+    mpResult = new SmGlyphSpecialNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmMathSymbolNode* pNode )
+{
+    mpResult = new SmMathSymbolNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmBlankNode* pNode )
+{
+    SmBlankNode* pClone = new SmBlankNode( pNode->GetToken( ) );
+    pClone->SetBlankNum( pNode->GetBlankNum( ) );
+    mpResult = pClone;
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmErrorNode* pNode )
+{
+    mpResult = new SmErrorNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmLineNode* pNode )
+{
+    SmLineNode* pClone = new SmLineNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmExpressionNode* pNode )
+{
+    SmExpressionNode* pClone = new SmExpressionNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmPolyLineNode* pNode )
+{
+    mpResult = new SmPolyLineNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmRootNode* pNode )
+{
+    SmRootNode* pClone = new SmRootNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+void SmCloningVisitor::Visit( SmRootSymbolNode* pNode )
+{
+    mpResult = new SmRootSymbolNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmRectangleNode* pNode )
+{
+    mpResult = new SmRectangleNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, mpResult );
+}
+
+void SmCloningVisitor::Visit( SmVerticalBraceNode* pNode )
+{
+    SmVerticalBraceNode* pClone = new SmVerticalBraceNode( pNode->GetToken( ) );
+    CloneNodeAttr( pNode, pClone );
+    CloneKids( pNode, pClone );
+    mpResult = pClone;
+}
+
+// SmSelectionDrawingVisitor
+
+SmSelectionDrawingVisitor::SmSelectionDrawingVisitor( OutputDevice& rDevice, SmNode* pTree, const Point& rOffset )
+    : mrDev( rDevice )
+    , mbHasSelectionArea( false )
+{
+    //Visit everything
+    SAL_WARN_IF( !pTree, "starmath", "pTree can't be null!" );
+    if( pTree )
+        pTree->Accept( this );
+
+    //Draw selection if there's any
+    if( !mbHasSelectionArea )        return;
+
+    maSelectionArea.Move( rOffset.X( ), rOffset.Y( ) );
+
+    //Save device state
+    mrDev.Push( PushFlags::LINECOLOR | PushFlags::FILLCOLOR );
+    //Change colors
+    mrDev.SetLineColor( );
+    mrDev.SetFillColor( COL_LIGHTGRAY );
+
+    //Draw rectangle
+    mrDev.DrawRect( maSelectionArea );
+
+    //Restore device state
+    mrDev.Pop( );
+}
+
+void SmSelectionDrawingVisitor::ExtendSelectionArea(const tools::Rectangle& rArea)
+{
+    if ( ! mbHasSelectionArea ) {
+        maSelectionArea = rArea;
+        mbHasSelectionArea = true;
+    } else
+        maSelectionArea.Union(rArea);
+}
+
+void SmSelectionDrawingVisitor::DefaultVisit( SmNode* pNode )
+{
+    if( pNode->IsSelected( ) )
+        ExtendSelectionArea( pNode->AsRectangle( ) );
+    VisitChildren( pNode );
+}
+
+void SmSelectionDrawingVisitor::VisitChildren( SmNode* pNode )
+{
+    if(pNode->GetNumSubNodes() == 0)
+        return;
+    for( auto pChild : *static_cast<SmStructureNode*>(pNode) )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+    }
+}
+
+void SmSelectionDrawingVisitor::Visit( SmTextNode* pNode )
+{
+    if( !pNode->IsSelected())
+        return;
+
+    mrDev.Push( PushFlags::TEXTCOLOR | PushFlags::FONT );
+
+    mrDev.SetFont( pNode->GetFont( ) );
+    Point Position = pNode->GetTopLeft( );
+    long left   = Position.getX( ) + mrDev.GetTextWidth( pNode->GetText( ), 0, pNode->GetSelectionStart( ) );
+    long right  = Position.getX( ) + mrDev.GetTextWidth( pNode->GetText( ), 0, pNode->GetSelectionEnd( ) );
+    long top    = Position.getY( );
+    long bottom = top + pNode->GetHeight( );
+    tools::Rectangle rect( left, top, right, bottom );
+
+    ExtendSelectionArea( rect );
+
+    mrDev.Pop( );
+}
+
+// SmNodeToTextVisitor
+
+SmNodeToTextVisitor::SmNodeToTextVisitor( SmNode* pNode, OUString &rText )
+{
+    pNode->Accept( this );
+    rText = maCmdText.makeStringAndClear();
+}
+
+void SmNodeToTextVisitor::Visit( SmTableNode* pNode )
+{
+    if( pNode->GetToken( ).eType == TBINOM ) {
+        Append( "{ binom" );
+        LineToText( pNode->GetSubNode( 0 ) );
+        LineToText( pNode->GetSubNode( 1 ) );
+        Append("} ");
+    } else if( pNode->GetToken( ).eType == TSTACK ) {
+        Append( "stack{ " );
+        bool bFirst = true;
+        for( auto pChild : *pNode )
+        {
+            if(!pChild)
+                continue;
+            if(bFirst)
+                bFirst = false;
+            else
+            {
+                Separate( );
+                Append( "# " );
+            }
+            LineToText( pChild );
+        }
+        Separate( );
+        Append( "}" );
+    } else { //Assume it's a toplevel table, containing lines
+        bool bFirst = true;
+        for( auto pChild : *pNode )
+        {
+            if(!pChild)
+                continue;
+            if(bFirst)
+                bFirst = false;
+            else
+            {
+                Separate( );
+                Append( "newline" );
+            }
+            Separate( );
+            pChild->Accept( this );
+        }
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmBraceNode* pNode )
+{
+    SmNode *pLeftBrace  = pNode->OpeningBrace(),
+           *pBody       = pNode->Body(),
+           *pRightBrace = pNode->ClosingBrace();
+    //Handle special case where it's absolute function
+    if( pNode->GetToken( ).eType == TABS ) {
+        Append( "abs" );
+        LineToText( pBody );
+    } else {
+        if( pNode->GetScaleMode( ) == SmScaleMode::Height )
+            Append( "left " );
+        pLeftBrace->Accept( this );
+        Separate( );
+        pBody->Accept( this );
+        Separate( );
+        if( pNode->GetScaleMode( ) == SmScaleMode::Height )
+            Append( "right " );
+        pRightBrace->Accept( this );
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmBracebodyNode* pNode )
+{
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        Separate( );
+        pChild->Accept( this );
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmOperNode* pNode )
+{
+    Append( pNode->GetToken( ).aText );
+    Separate( );
+    if( pNode->GetToken( ).eType == TOPER ){
+        //There's an SmGlyphSpecialNode if eType == TOPER
+        if( pNode->GetSubNode( 0 )->GetType( ) == SmNodeType::SubSup )
+            Append( pNode->GetSubNode( 0 )->GetSubNode( 0 )->GetToken( ).aText );
+        else
+            Append( pNode->GetSubNode( 0 )->GetToken( ).aText );
+    }
+    if( pNode->GetSubNode( 0 )->GetType( ) == SmNodeType::SubSup ) {
+        SmSubSupNode *pSubSup = static_cast<SmSubSupNode*>( pNode->GetSubNode( 0 ) );
+        SmNode* pChild = pSubSup->GetSubSup( LSUP );
+        if( pChild ) {
+            Separate( );
+            Append( "lsup { " );
+            LineToText( pChild );
+            Append( "} " );
+        }
+        pChild = pSubSup->GetSubSup( LSUB );
+        if( pChild ) {
+            Separate( );
+            Append( "lsub { " );
+            LineToText( pChild );
+            Append( "} " );
+        }
+        pChild = pSubSup->GetSubSup( RSUP );
+        if( pChild ) {
+            Separate( );
+            Append( "^ { " );
+            LineToText( pChild );
+            Append( "} " );
+        }
+        pChild = pSubSup->GetSubSup( RSUB );
+        if( pChild ) {
+            Separate( );
+            Append( "_ { " );
+            LineToText( pChild );
+            Append( "} " );
+        }
+        pChild = pSubSup->GetSubSup( CSUP );
+        if( pChild ) {
+            Separate( );
+            if (pSubSup->IsUseLimits())
+                Append( "to { " );
+            else
+                Append( "csup { " );
+            LineToText( pChild );
+            Append( "} " );
+        }
+        pChild = pSubSup->GetSubSup( CSUB );
+        if( pChild ) {
+            Separate( );
+            if (pSubSup->IsUseLimits())
+                Append( "from { " );
+            else
+                Append( "csub { " );
+            LineToText( pChild );
+            Append( "} " );
+        }
+    }
+    LineToText( pNode->GetSubNode( 1 ) );
+}
+
+void SmNodeToTextVisitor::Visit( SmAlignNode* pNode )
+{
+    Append( pNode->GetToken( ).aText );
+    LineToText( pNode->GetSubNode( 0 ) );
+}
+
+void SmNodeToTextVisitor::Visit( SmAttributNode* pNode )
+{
+    Append( pNode->GetToken( ).aText );
+    LineToText( pNode->Body() );
+}
+
+void SmNodeToTextVisitor::Visit( SmFontNode* pNode )
+{
+    switch ( pNode->GetToken( ).eType )
+    {
+        case TBOLD:
+            Append( "bold " );
+            break;
+        case TNBOLD:
+            Append( "nbold " );
+            break;
+        case TITALIC:
+            Append( "italic " );
+            break;
+        case TNITALIC:
+            Append( "nitalic " );
+            break;
+        case TPHANTOM:
+            Append( "phantom " );
+            break;
+        case TSIZE:
+            {
+                Append( "size " );
+                switch ( pNode->GetSizeType( ) )
+                {
+                    case FontSizeType::PLUS:
+                        Append( "+" );
+                        break;
+                    case FontSizeType::MINUS:
+                        Append( "-" );
+                        break;
+                    case FontSizeType::MULTIPLY:
+                        Append( "*" );
+                        break;
+                    case FontSizeType::DIVIDE:
+                        Append( "/" );
+                        break;
+                    case FontSizeType::ABSOLUT:
+                    default:
+                        break;
+                }
+                Append( ::rtl::math::doubleToUString(
+                            static_cast<double>( pNode->GetSizeParameter( ) ),
+                            rtl_math_StringFormat_Automatic,
+                            rtl_math_DecimalPlaces_Max, '.', true ) );
+                Append( " " );
+            }
+            break;
+        case TBLACK:
+            Append( "color black " );
+            break;
+        case TWHITE:
+            Append( "color white " );
+            break;
+        case TRED:
+            Append( "color red " );
+            break;
+        case TGREEN:
+            Append( "color green " );
+            break;
+        case TBLUE:
+            Append( "color blue " );
+            break;
+        case TCYAN:
+            Append( "color cyan " );
+            break;
+        case TMAGENTA:
+            Append( "color magenta " );
+            break;
+        case TYELLOW:
+            Append( "color yellow " );
+            break;
+        case TSANS:
+            Append( "font sans " );
+            break;
+        case TSERIF:
+            Append( "font serif " );
+            break;
+        case TFIXED:
+            Append( "font fixed " );
+            break;
+        default:
+            break;
+    }
+    LineToText( pNode->GetSubNode( 1 ) );
+}
+
+void SmNodeToTextVisitor::Visit( SmUnHorNode* pNode )
+{
+    if(pNode->GetSubNode( 1 )->GetToken( ).eType == TFACT)
+    {
+        // visit children in the reverse order
+        for( auto it = pNode->rbegin(); it != pNode->rend(); ++it )
+        {
+            auto pChild = *it;
+            if(!pChild)
+                continue;
+            Separate( );
+            pChild->Accept( this );
+        }
+    }
+    else
+    {
+        for( auto pChild : *pNode )
+        {
+            if(!pChild)
+                continue;
+            Separate( );
+            pChild->Accept( this );
+        }
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmBinHorNode* pNode )
+{
+    const SmNode *pParent = pNode->GetParent();
+    bool bBraceNeeded = pParent && pParent->GetType() == SmNodeType::Font;
+    SmNode *pLeft  = pNode->LeftOperand(),
+           *pOper  = pNode->Symbol(),
+           *pRight = pNode->RightOperand();
+    Separate( );
+    if (bBraceNeeded)
+        Append( "{ " );
+    pLeft->Accept( this );
+    Separate( );
+    pOper->Accept( this );
+    Separate( );
+    pRight->Accept( this );
+    Separate( );
+    if (bBraceNeeded)
+        Append( "} " );
+}
+
+void SmNodeToTextVisitor::Visit( SmBinVerNode* pNode )
+{
+    SmNode *pNum    = pNode->GetSubNode( 0 ),
+           *pDenom  = pNode->GetSubNode( 2 );
+    Append( "{ " );
+    LineToText( pNum );
+    Append( "over" );
+    LineToText( pDenom );
+    Append( "} " );
+}
+
+void SmNodeToTextVisitor::Visit( SmBinDiagonalNode* pNode )
+{
+    SmNode *pLeftOperand  = pNode->GetSubNode( 0 ),
+           *pRightOperand = pNode->GetSubNode( 1 );
+    Append( "{ " );
+    LineToText( pLeftOperand );
+    Separate( );
+    Append( "wideslash " );
+    LineToText( pRightOperand );
+    Append( "} " );
+}
+
+void SmNodeToTextVisitor::Visit( SmSubSupNode* pNode )
+{
+    LineToText( pNode->GetBody( ) );
+    SmNode *pChild = pNode->GetSubSup( LSUP );
+    if( pChild ) {
+        Separate( );
+        Append( "lsup " );
+        LineToText( pChild );
+    }
+    pChild = pNode->GetSubSup( LSUB );
+    if( pChild ) {
+        Separate( );
+        Append( "lsub " );
+        LineToText( pChild );
+    }
+    pChild = pNode->GetSubSup( RSUP );
+    if( pChild ) {
+        Separate( );
+        Append( "^ " );
+        LineToText( pChild );
+    }
+    pChild = pNode->GetSubSup( RSUB );
+    if( pChild ) {
+        Separate( );
+        Append( "_ " );
+        LineToText( pChild );
+    }
+    pChild = pNode->GetSubSup( CSUP );
+    if( pChild ) {
+        Separate( );
+        if (pNode->IsUseLimits())
+            Append( "to " );
+        else
+            Append( "csup " );
+        LineToText( pChild );
+    }
+    pChild = pNode->GetSubSup( CSUB );
+    if( pChild ) {
+        Separate( );
+        if (pNode->IsUseLimits())
+            Append( "from " );
+        else
+            Append( "csub " );
+        LineToText( pChild );
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmMatrixNode* pNode )
+{
+    Append( "matrix{" );
+    for (size_t i = 0; i < pNode->GetNumRows(); ++i)
+    {
+        for (size_t j = 0; j < pNode->GetNumCols( ); ++j)
+        {
+            SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j );
+            Separate( );
+            pSubNode->Accept( this );
+            Separate( );
+            if (j != pNode->GetNumCols() - 1U)
+                Append( "#" );
+        }
+        Separate( );
+        if (i != pNode->GetNumRows() - 1U)
+            Append( "##" );
+    }
+    Append( "} " );
+}
+
+void SmNodeToTextVisitor::Visit( SmPlaceNode* )
+{
+    Append( "<?>" );
+}
+
+void SmNodeToTextVisitor::Visit( SmTextNode* pNode )
+{
+    //TODO: This method might need improvements, see SmTextNode::CreateTextFromNode
+    if( pNode->GetToken( ).eType == TTEXT )
+        Append( "\"" );
+    Append( pNode->GetText( ) );
+    if( pNode->GetToken( ).eType == TTEXT )
+        Append( "\"" );
+}
+
+void SmNodeToTextVisitor::Visit( SmSpecialNode* pNode )
+{
+    Append( pNode->GetToken( ).aText );
+}
+
+void SmNodeToTextVisitor::Visit( SmGlyphSpecialNode* pNode )
+{
+    if( pNode->GetToken( ).eType == TBOPER )
+        Append( "boper " );
+    else
+        Append( "uoper " );
+    Append( pNode->GetToken( ).aText );
+}
+
+void SmNodeToTextVisitor::Visit( SmMathSymbolNode* pNode )
+{
+    Append( pNode->GetToken( ).aText );
+}
+
+void SmNodeToTextVisitor::Visit( SmBlankNode* pNode )
+{
+    sal_uInt16 nNum = pNode->GetBlankNum();
+    if (nNum <= 0)
+        return;
+    sal_uInt16 nWide = nNum / 4;
+    sal_uInt16 nNarrow = nNum % 4;
+    for (sal_uInt16 i = 0; i < nWide; i++)
+        Append( "~" );
+    for (sal_uInt16 i = 0; i < nNarrow; i++)
+        Append( "`" );
+    Append( " " );
+}
+
+void SmNodeToTextVisitor::Visit( SmErrorNode* )
+{
+}
+
+void SmNodeToTextVisitor::Visit( SmLineNode* pNode )
+{
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        Separate( );
+        pChild->Accept( this );
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmExpressionNode* pNode )
+{
+    bool bracketsNeeded = pNode->GetNumSubNodes() != 1 || pNode->GetSubNode(0)->GetType() == SmNodeType::BinHor;
+    if (!bracketsNeeded)
+    {
+        const SmNode *pParent = pNode->GetParent();
+        // nested subsups
+        bracketsNeeded =
+            pParent && pParent->GetType() == SmNodeType::SubSup &&
+            pNode->GetNumSubNodes() == 1 &&
+            pNode->GetSubNode(0)->GetType() == SmNodeType::SubSup;
+    }
+
+    if (bracketsNeeded) {
+        Append( "{ " );
+    }
+    for( auto pChild : *pNode )
+    {
+        if(!pChild)
+            continue;
+        pChild->Accept( this );
+        Separate( );
+    }
+    if (bracketsNeeded) {
+        Append( "} " );
+    }
+}
+
+void SmNodeToTextVisitor::Visit( SmPolyLineNode* )
+{
+}
+
+void SmNodeToTextVisitor::Visit( SmRootNode* pNode )
+{
+    SmNode *pExtra   = pNode->GetSubNode( 0 ),
+           *pBody    = pNode->GetSubNode( 2 );
+    if( pExtra ) {
+        Append( "nroot" );
+        LineToText( pExtra );
+    } else
+        Append( "sqrt" );
+    LineToText( pBody );
+}
+
+void SmNodeToTextVisitor::Visit( SmRootSymbolNode* )
+{
+}
+
+void SmNodeToTextVisitor::Visit( SmRectangleNode* )
+{
+}
+
+void SmNodeToTextVisitor::Visit( SmVerticalBraceNode* pNode )
+{
+    SmNode *pBody   = pNode->Body(),
+           *pScript = pNode->Script();
+    LineToText( pBody );
+    Append( pNode->GetToken( ).aText );
+    LineToText( pScript );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/wordexportbase.cxx b/starmath/source/wordexportbase.cxx
new file mode 100644
index 000000000..7f4699dfb
--- /dev/null
+++ b/starmath/source/wordexportbase.cxx
@@ -0,0 +1,185 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "wordexportbase.hxx"
+#include <node.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+SmWordExportBase::SmWordExportBase(const SmNode* pIn)
+    : m_pTree(pIn)
+{
+}
+
+SmWordExportBase::~SmWordExportBase() = default;
+
+void SmWordExportBase::HandleNode(const SmNode* pNode, int nLevel)
+{
+    SAL_INFO("starmath.wordbase",
+             "Node: " << nLevel << " " << int(pNode->GetType()) << " " << pNode->GetNumSubNodes());
+    switch (pNode->GetType())
+    {
+        case SmNodeType::Attribut:
+            HandleAttribute(static_cast<const SmAttributNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::Text:
+            HandleText(pNode, nLevel);
+            break;
+        case SmNodeType::VerticalBrace:
+            HandleVerticalBrace(static_cast<const SmVerticalBraceNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::Brace:
+            HandleBrace(static_cast<const SmBraceNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::Oper:
+            HandleOperator(static_cast<const SmOperNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::UnHor:
+            HandleUnaryOperation(static_cast<const SmUnHorNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::BinHor:
+            HandleBinaryOperation(static_cast<const SmBinHorNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::BinVer:
+            HandleFractions(pNode, nLevel, nullptr);
+            break;
+        case SmNodeType::Root:
+            HandleRoot(static_cast<const SmRootNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::Special:
+        {
+            auto pText = static_cast<const SmTextNode*>(pNode);
+            //if the token str and the result text are the same then this
+            //is to be seen as text, else assume it's a mathchar
+            if (pText->GetText() == pText->GetToken().aText)
+                HandleText(pText, nLevel);
+            else
+                HandleMath(pText, nLevel);
+            break;
+        }
+        case SmNodeType::Math:
+        case SmNodeType::MathIdent:
+            HandleMath(pNode, nLevel);
+            break;
+        case SmNodeType::SubSup:
+            HandleSubSupScript(static_cast<const SmSubSupNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::Expression:
+            HandleAllSubNodes(pNode, nLevel);
+            break;
+        case SmNodeType::Table:
+            //Root Node, PILE equivalent, i.e. vertical stack
+            HandleTable(pNode, nLevel);
+            break;
+        case SmNodeType::Matrix:
+            HandleMatrix(static_cast<const SmMatrixNode*>(pNode), nLevel);
+            break;
+        case SmNodeType::Line:
+        {
+            // TODO
+            HandleAllSubNodes(pNode, nLevel);
+        }
+        break;
+#if 0
+    case SmNodeType::Align:
+        HandleMAlign(pNode,nLevel);
+        break;
+#endif
+        case SmNodeType::Place:
+            // explicitly do nothing, MSOffice treats that as a placeholder if item is missing
+            break;
+        case SmNodeType::Blank:
+            HandleBlank();
+            break;
+        default:
+            HandleAllSubNodes(pNode, nLevel);
+            break;
+    }
+}
+
+//Root Node, PILE equivalent, i.e. vertical stack
+void SmWordExportBase::HandleTable(const SmNode* pNode, int nLevel)
+{
+    //The root of the starmath is a table, if
+    //we convert this them each iteration of
+    //conversion from starmath to Word will
+    //add an extra unnecessary level to the
+    //Word output stack which would grow
+    //without bound in a multi step conversion
+    if (nLevel || pNode->GetNumSubNodes() > 1)
+        HandleVerticalStack(pNode, nLevel);
+    else
+        HandleAllSubNodes(pNode, nLevel);
+}
+
+void SmWordExportBase::HandleAllSubNodes(const SmNode* pNode, int nLevel)
+{
+    int size = pNode->GetNumSubNodes();
+    for (int i = 0; i < size; ++i)
+    {
+        // TODO remove when all types of nodes are handled properly
+        if (pNode->GetSubNode(i) == nullptr)
+        {
+            SAL_WARN("starmath.wordbase", "Subnode is NULL, parent node not handled properly");
+            continue;
+        }
+        HandleNode(pNode->GetSubNode(i), nLevel + 1);
+    }
+}
+
+void SmWordExportBase::HandleUnaryOperation(const SmUnHorNode* pNode, int nLevel)
+{
+    // update HandleMath() when adding new items
+    SAL_INFO("starmath.wordbase", "Unary: " << int(pNode->GetToken().eType));
+
+    HandleAllSubNodes(pNode, nLevel);
+}
+
+void SmWordExportBase::HandleBinaryOperation(const SmBinHorNode* pNode, int nLevel)
+{
+    SAL_INFO("starmath.wordbase", "Binary: " << int(pNode->Symbol()->GetToken().eType));
+    // update HandleMath() when adding new items
+    switch (pNode->Symbol()->GetToken().eType)
+    {
+        case TDIVIDEBY:
+            return HandleFractions(pNode, nLevel, "lin");
+        default:
+            HandleAllSubNodes(pNode, nLevel);
+            break;
+    }
+}
+
+void SmWordExportBase::HandleMath(const SmNode* pNode, int nLevel)
+{
+    SAL_INFO("starmath.wordbase", "Math: " << int(pNode->GetToken().eType));
+    switch (pNode->GetToken().eType)
+    {
+        case TDIVIDEBY:
+        case TACUTE:
+            OSL_ASSERT(false);
+            [[fallthrough]]; // the above are handled elsewhere, e.g. when handling BINHOR
+        default:
+            HandleText(pNode, nLevel);
+            break;
+    }
+}
+
+void SmWordExportBase::HandleSubSupScript(const SmSubSupNode* pNode, int nLevel)
+{
+    // set flags to a bitfield of which sub/sup items exists
+    int flags = (pNode->GetSubSup(CSUB) != nullptr ? (1 << CSUB) : 0)
+                | (pNode->GetSubSup(CSUP) != nullptr ? (1 << CSUP) : 0)
+                | (pNode->GetSubSup(RSUB) != nullptr ? (1 << RSUB) : 0)
+                | (pNode->GetSubSup(RSUP) != nullptr ? (1 << RSUP) : 0)
+                | (pNode->GetSubSup(LSUB) != nullptr ? (1 << LSUB) : 0)
+                | (pNode->GetSubSup(LSUP) != nullptr ? (1 << LSUP) : 0);
+    HandleSubSupScriptInternal(pNode, nLevel, flags);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/starmath/source/wordexportbase.hxx b/starmath/source/wordexportbase.hxx
new file mode 100644
index 000000000..4f191df2a
--- /dev/null
+++ b/starmath/source/wordexportbase.hxx
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_WORDEXPORTBASE_HXX
+#define INCLUDED_STARMATH_SOURCE_WORDEXPORTBASE_HXX
+
+class SmAttributNode;
+class SmBinHorNode;
+class SmBraceNode;
+class SmMatrixNode;
+class SmNode;
+class SmOperNode;
+class SmRootNode;
+class SmSubSupNode;
+class SmUnHorNode;
+class SmVerticalBraceNode;
+
+/**
+ Base class implementing writing of formulas to Word.
+ */
+class SmWordExportBase
+{
+public:
+    explicit SmWordExportBase(const SmNode* pIn);
+    virtual ~SmWordExportBase();
+
+protected:
+    void HandleNode(const SmNode* pNode, int nLevel);
+    void HandleAllSubNodes(const SmNode* pNode, int nLevel);
+    void HandleTable(const SmNode* pNode, int nLevel);
+    virtual void HandleVerticalStack(const SmNode* pNode, int nLevel) = 0;
+    virtual void HandleText(const SmNode* pNode, int nLevel) = 0;
+    void HandleMath(const SmNode* pNode, int nLevel);
+    virtual void HandleFractions(const SmNode* pNode, int nLevel, const char* type) = 0;
+    void HandleUnaryOperation(const SmUnHorNode* pNode, int nLevel);
+    void HandleBinaryOperation(const SmBinHorNode* pNode, int nLevel);
+    virtual void HandleRoot(const SmRootNode* pNode, int nLevel) = 0;
+    virtual void HandleAttribute(const SmAttributNode* pNode, int nLevel) = 0;
+    virtual void HandleOperator(const SmOperNode* pNode, int nLevel) = 0;
+    void HandleSubSupScript(const SmSubSupNode* pNode, int nLevel);
+    virtual void HandleSubSupScriptInternal(const SmSubSupNode* pNode, int nLevel, int flags) = 0;
+    virtual void HandleMatrix(const SmMatrixNode* pNode, int nLevel) = 0;
+    virtual void HandleBrace(const SmBraceNode* pNode, int nLevel) = 0;
+    virtual void HandleVerticalBrace(const SmVerticalBraceNode* pNode, int nLevel) = 0;
+    virtual void HandleBlank() = 0;
+    const SmNode* const m_pTree;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */