Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 738 insertions, 0 deletions

diff --git a/starmath/source/accessibility.cxx b/starmath/source/accessibility.cxx
new file mode 100644
index 000000000..591bbeafb
--- /dev/null
+++ b/starmath/source/accessibility.cxx
@@ -0,0 +1,738 @@
+/* -*- 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/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 <unotools/accessiblestatesethelper.hxx>
+#include <comphelper/accessibleeventnotifier.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <osl/diagnose.h>
+#include <tools/diagnose_ex.h>
+#include <vcl/svapp.hxx>
+#include <vcl/unohelp2.hxx>
+#include <vcl/settings.hxx>
+
+#include <tools/gen.hxx>
+
+#include <editeng/editobj.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;
+
+SmGraphicAccessible::SmGraphicAccessible(SmGraphicWidget *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( std::exchange(nClientId, 0), *this );
+    }
+}
+
+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->GetOutputSizePixel() );
+    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();
+
+    const Point aOutPos;
+    const Size aOutSize(pWin->GetOutputSizePixel());
+    css::awt::Rectangle aRet;
+
+    aRet.X = aOutPos.X();
+    aRet.Y = aOutPos.Y();
+    aRet.Width = aOutSize.Width();
+    aRet.Height = aOutSize.Height();
+
+    return aRet;
+}
+
+awt::Point SAL_CALL SmGraphicAccessible::getLocation()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    const css::awt::Rectangle aRect(getBounds());
+    css::awt::Point aRet;
+
+    aRet.X = aRect.X;
+    aRet.Y = aRect.Y;
+
+    return aRet;
+}
+
+awt::Point SAL_CALL SmGraphicAccessible::getLocationOnScreen()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    css::awt::Point aScreenLoc(0, 0);
+
+    css::uno::Reference<css::accessibility::XAccessible> xParent(getAccessibleParent());
+    if (xParent)
+    {
+        css::uno::Reference<css::accessibility::XAccessibleContext> xParentContext(
+            xParent->getAccessibleContext());
+        css::uno::Reference<css::accessibility::XAccessibleComponent> xParentComponent(
+            xParentContext, css::uno::UNO_QUERY);
+        OSL_ENSURE(xParentComponent.is(),
+                   "WeldEditAccessible::getLocationOnScreen: no parent component!");
+        if (xParentComponent.is())
+        {
+            css::awt::Point aParentScreenLoc(xParentComponent->getLocationOnScreen());
+            css::awt::Point aOwnRelativeLoc(getLocation());
+            aScreenLoc.X = aParentScreenLoc.X + aOwnRelativeLoc.X;
+            aScreenLoc.Y = aParentScreenLoc.Y + aOwnRelativeLoc.Y;
+        }
+    }
+
+    return aScreenLoc;
+}
+
+awt::Size SAL_CALL SmGraphicAccessible::getSize()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+    Size aSz(pWin->GetOutputSizePixel());
+    return css::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();
+
+    weld::DrawingArea* pDrawingArea = pWin->GetDrawingArea();
+    OutputDevice& rDevice = pDrawingArea->get_ref_device();
+
+    return static_cast<sal_Int32>(rDevice.GetTextColor());
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getBackground()
+{
+    SolarMutexGuard aGuard;
+    if (!pWin)
+        throw RuntimeException();
+
+    weld::DrawingArea* pDrawingArea = pWin->GetDrawingArea();
+    OutputDevice& rDevice = pDrawingArea->get_ref_device();
+
+    Wallpaper aWall(rDevice.GetBackground());
+    Color nCol;
+    if (aWall.IsBitmap() || aWall.IsGradient())
+        nCol = Application::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();
+
+    return pWin->GetDrawingArea()->get_accessible_parent();
+}
+
+sal_Int32 SAL_CALL SmGraphicAccessible::getAccessibleIndexInParent()
+{
+    SolarMutexGuard aGuard;
+
+    // -1 for child not found/no parent (according to specification)
+    sal_Int32 nRet = -1;
+
+    css::uno::Reference<css::accessibility::XAccessible> xParent(getAccessibleParent());
+    if (!xParent)
+        return nRet;
+
+    try
+    {
+        css::uno::Reference<css::accessibility::XAccessibleContext> xParentContext(
+            xParent->getAccessibleContext());
+
+        //  iterate over parent's children and search for this object
+        if (xParentContext.is())
+        {
+            sal_Int32 nChildCount = xParentContext->getAccessibleChildCount();
+            for (sal_Int32 nChild = 0; (nChild < nChildCount) && (-1 == nRet); ++nChild)
+            {
+                css::uno::Reference<css::accessibility::XAccessible> xChild(
+                    xParentContext->getAccessibleChild(nChild));
+                if (xChild.get() == this)
+                    nRet = nChild;
+            }
+        }
+    }
+    catch (const css::uno::Exception&)
+    {
+        TOOLS_WARN_EXCEPTION("svx", "WeldEditAccessible::getAccessibleIndexInParent");
+    }
+
+    return nRet;
+}
+
+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()
+{
+    return new utl::AccessibleRelationSetHelper(); // empty relation set
+}
+
+Reference< XAccessibleStateSet > SAL_CALL SmGraphicAccessible::getAccessibleStateSet()
+{
+    SolarMutexGuard aGuard;
+    rtl::Reference<::utl::AccessibleStateSetHelper> pStateSet =
+            new ::utl::AccessibleStateSetHelper;
+
+    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 );
+        weld::DrawingArea* pDrawingArea = pWin->GetDrawingArea();
+        OutputDevice& rDevice = pDrawingArea->get_ref_device();
+        if (COL_TRANSPARENT != rDevice.GetBackground().GetColor())
+            pStateSet->AddState( AccessibleStateType::OPAQUE );
+    }
+
+    return pStateSet;
+}
+
+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( std::exchange(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
+    SmDocShell* pDoc  = pWin->GetView().GetDoc();
+    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());
+
+            weld::DrawingArea* pDrawingArea = pWin->GetDrawingArea();
+            OutputDevice& rDevice = pDrawingArea->get_ref_device();
+
+            std::vector<sal_Int32> aXAry;
+            rDevice.SetFont( pNode->GetFont() );
+            rDevice.GetTextArray( aNodeText, &aXAry, 0, aNodeText.getLength() );
+            aTLPos.AdjustX(nNodeIndex > 0 ? aXAry[nNodeIndex - 1] : 0 );
+            aSize.setWidth( nNodeIndex > 0 ? aXAry[nNodeIndex] - aXAry[nNodeIndex - 1] : aXAry[nNodeIndex] );
+
+            aTLPos = rDevice.LogicToPixel( aTLPos );
+            aSize  = rDevice.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;
+
+        weld::DrawingArea* pDrawingArea = pWin->GetDrawingArea();
+        OutputDevice& rDevice = pDrawingArea->get_ref_device();
+
+        // get position relative to formula draw position
+        Point  aPos( aPoint.X, aPoint.Y );
+        aPos = rDevice.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.Contains( 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" );
+
+                tools::Long nNodeX = pNode->GetLeft();
+
+                std::vector<sal_Int32> aXAry;
+                rDevice.SetFont( pNode->GetFont() );
+                rDevice.GetTextArray( aTxt, &aXAry, 0, aTxt.getLength() );
+                for (sal_Int32 i = 0;  i < aTxt.getLength()  &&  nRes == -1;  ++i)
+                {
+                    if (aXAry[i] + nNodeX > aPos.X())
+                        nRes = i;
+                }
+                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) );
+
+        rtl::Reference<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"
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */