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, 798 insertions, 0 deletions

diff --git a/sd/source/ui/view/OutlinerIterator.cxx b/sd/source/ui/view/OutlinerIterator.cxx
new file mode 100644
index 000000000..8cdb29330
--- /dev/null
+++ b/sd/source/ui/view/OutlinerIterator.cxx
@@ -0,0 +1,798 @@
+/* -*- 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 <OutlinerIterator.hxx>
+#include <OutlinerIteratorImpl.hxx>
+#include <svx/svditer.hxx>
+#include <tools/debug.hxx>
+#include <osl/diagnose.h>
+#include <Outliner.hxx>
+
+#include <drawdoc.hxx>
+#include <DrawViewShell.hxx>
+#include <sdpage.hxx>
+
+namespace sd::outliner {
+
+//===== IteratorPosition ======================================================
+
+IteratorPosition::IteratorPosition()
+: mnText(0)
+, mnPageIndex(-1)
+, mePageKind(PageKind::Standard)
+, meEditMode(EditMode::Page)
+{
+}
+
+bool IteratorPosition::operator== (const IteratorPosition& aPosition) const
+{
+    return mxObject.get() == aPosition.mxObject.get()
+        && mnText == aPosition.mnText
+        && mnPageIndex == aPosition.mnPageIndex
+        && mePageKind == aPosition.mePageKind
+        && meEditMode == aPosition.meEditMode;
+}
+
+//===== Iterator ==============================================================
+
+Iterator::Iterator()
+{
+}
+
+Iterator::Iterator (const Iterator& rIterator)
+    : mxIterator(rIterator.mxIterator ? rIterator.mxIterator->Clone() : nullptr)
+{
+}
+
+Iterator::Iterator(Iterator&& rIterator) noexcept
+    : mxIterator(std::move(rIterator.mxIterator))
+{
+}
+
+Iterator::Iterator (std::unique_ptr<IteratorImplBase> pObject)
+    : mxIterator(std::move(pObject))
+{
+}
+
+Iterator::~Iterator()
+{
+}
+
+Iterator& Iterator::operator= (const Iterator& rIterator)
+{
+    if (this != &rIterator)
+    {
+        if (rIterator.mxIterator)
+            mxIterator.reset(rIterator.mxIterator->Clone());
+        else
+            mxIterator.reset();
+    }
+    return *this;
+}
+
+Iterator& Iterator::operator=(Iterator&& rIterator) noexcept
+{
+    mxIterator = std::move(rIterator.mxIterator);
+    return *this;
+}
+
+const IteratorPosition& Iterator::operator* () const
+{
+    DBG_ASSERT (mxIterator, "::sd::outliner::Iterator::operator* : missing implementation object");
+    return mxIterator->GetPosition();
+}
+
+Iterator& Iterator::operator++ ()
+{
+    if (mxIterator)
+        mxIterator->GotoNextText();
+    return *this;
+}
+
+bool Iterator::operator== (const Iterator& rIterator) const
+{
+    if (!mxIterator || !rIterator.mxIterator)
+        return mxIterator.get() == rIterator.mxIterator.get();
+    else
+        return *mxIterator == *rIterator.mxIterator;
+}
+
+bool Iterator::operator!= (const Iterator& rIterator) const
+{
+    return ! operator==(rIterator);
+}
+
+void Iterator::Reverse()
+{
+    if (mxIterator)
+        mxIterator->Reverse();
+}
+
+//===== IteratorFactory =======================================================
+
+OutlinerContainer::OutlinerContainer (SdOutliner* pOutliner)
+: mpOutliner(pOutliner)
+{
+}
+
+Iterator OutlinerContainer::begin()
+{
+    return CreateIterator (BEGIN);
+}
+
+Iterator OutlinerContainer::end()
+{
+    return CreateIterator (END);
+}
+
+Iterator OutlinerContainer::current()
+{
+    return CreateIterator (CURRENT);
+}
+
+Iterator OutlinerContainer::CreateIterator (IteratorLocation aLocation)
+{
+    // Decide on certain features of the outliner which kind of iterator to
+    // use.
+    if (mpOutliner->mbRestrictSearchToSelection)
+        // There is a selection.  Search only in this.
+        return CreateSelectionIterator (
+            mpOutliner->maMarkListCopy,
+            mpOutliner->mpDrawDocument,
+            mpOutliner->mpWeakViewShell.lock(),
+            mpOutliner->mbDirectionIsForward,
+            aLocation);
+    else
+        // Search in the whole document.
+        return CreateDocumentIterator (
+            mpOutliner->mpDrawDocument,
+            mpOutliner->mpWeakViewShell.lock(),
+            mpOutliner->mbDirectionIsForward,
+            aLocation);
+}
+
+Iterator OutlinerContainer::CreateSelectionIterator (
+    const ::std::vector<::tools::WeakReference<SdrObject>>& rObjectList,
+    SdDrawDocument* pDocument,
+    const std::shared_ptr<ViewShell>& rpViewShell,
+    bool bDirectionIsForward,
+    IteratorLocation aLocation)
+{
+    OSL_ASSERT(rpViewShell);
+
+    sal_Int32 nObjectIndex;
+
+    if (bDirectionIsForward)
+        switch (aLocation)
+        {
+            case CURRENT:
+            case BEGIN:
+            default:
+                nObjectIndex = 0;
+                break;
+            case END:
+                nObjectIndex = rObjectList.size();
+                break;
+        }
+    else
+        switch (aLocation)
+        {
+            case CURRENT:
+            case BEGIN:
+            default:
+                nObjectIndex = rObjectList.size()-1;
+                break;
+            case END:
+                nObjectIndex = -1;
+                break;
+        }
+
+    return Iterator (std::make_unique<SelectionIteratorImpl> (
+        rObjectList, nObjectIndex, pDocument, rpViewShell, bDirectionIsForward));
+}
+
+Iterator OutlinerContainer::CreateDocumentIterator (
+    SdDrawDocument* pDocument,
+    const std::shared_ptr<ViewShell>& rpViewShell,
+    bool bDirectionIsForward,
+    IteratorLocation aLocation)
+{
+    OSL_ASSERT(rpViewShell);
+
+    PageKind ePageKind;
+    EditMode eEditMode;
+
+    switch (aLocation)
+    {
+        case BEGIN:
+        default:
+            if (bDirectionIsForward)
+            {
+                ePageKind = PageKind::Standard;
+                eEditMode = EditMode::Page;
+            }
+            else
+            {
+                ePageKind = PageKind::Handout;
+                eEditMode = EditMode::MasterPage;
+            }
+            break;
+
+        case END:
+            if (bDirectionIsForward)
+            {
+                ePageKind = PageKind::Handout;
+                eEditMode = EditMode::MasterPage;
+            }
+            else
+            {
+                ePageKind = PageKind::Standard;
+                eEditMode = EditMode::Page;
+            }
+            break;
+
+        case CURRENT:
+            const std::shared_ptr<DrawViewShell> pDrawViewShell(
+                std::dynamic_pointer_cast<DrawViewShell>(rpViewShell));
+            if (pDrawViewShell)
+            {
+                ePageKind = pDrawViewShell->GetPageKind();
+                eEditMode = pDrawViewShell->GetEditMode();
+            }
+            else
+            {
+                ePageKind = PageKind::Standard;
+                eEditMode = EditMode::Page;
+            }
+            break;
+    }
+
+    sal_Int32 nPageIndex = GetPageIndex (pDocument, rpViewShell,
+        ePageKind, eEditMode, bDirectionIsForward, aLocation);
+
+    return Iterator (
+        std::make_unique<DocumentIteratorImpl> (nPageIndex, ePageKind, eEditMode,
+            pDocument, rpViewShell, bDirectionIsForward));
+}
+
+sal_Int32 OutlinerContainer::GetPageIndex (
+    SdDrawDocument const * pDocument,
+    const std::shared_ptr<ViewShell>& rpViewShell,
+    PageKind ePageKind,
+    EditMode eEditMode,
+    bool bDirectionIsForward,
+    IteratorLocation aLocation)
+{
+    OSL_ASSERT(rpViewShell);
+
+    sal_Int32 nPageIndex;
+    sal_Int32 nPageCount;
+
+    const std::shared_ptr<DrawViewShell> pDrawViewShell(
+        std::dynamic_pointer_cast<DrawViewShell>(rpViewShell));
+
+    switch (eEditMode)
+    {
+        case EditMode::Page:
+            nPageCount = pDocument->GetSdPageCount (ePageKind);
+            break;
+        case EditMode::MasterPage:
+            nPageCount = pDocument->GetMasterSdPageCount(ePageKind);
+            break;
+        default:
+            nPageCount = 0;
+    }
+
+    switch (aLocation)
+    {
+        case CURRENT:
+            if (pDrawViewShell)
+                nPageIndex = pDrawViewShell->GetCurPagePos();
+            else
+            {
+                const SdPage* pPage = rpViewShell->GetActualPage();
+                if (pPage != nullptr)
+                    nPageIndex = (pPage->GetPageNum()-1)/2;
+                else
+                    nPageIndex = 0;
+            }
+            break;
+
+        case BEGIN:
+        default:
+            if (bDirectionIsForward)
+                nPageIndex = 0;
+            else
+                nPageIndex = nPageCount-1;
+            break;
+
+        case END:
+            if (bDirectionIsForward)
+                nPageIndex = nPageCount;
+            else
+                nPageIndex = -1;
+            break;
+    }
+
+    return nPageIndex;
+}
+
+//===== IteratorImplBase ====================================================
+
+IteratorImplBase::IteratorImplBase(SdDrawDocument* pDocument,
+    const std::weak_ptr<ViewShell>& rpViewShellWeak,
+    bool bDirectionIsForward)
+:   mpDocument (pDocument)
+,   mpViewShellWeak (rpViewShellWeak)
+,   mbDirectionIsForward (bDirectionIsForward)
+{
+    std::shared_ptr<DrawViewShell> pDrawViewShell;
+    if ( ! mpViewShellWeak.expired())
+        pDrawViewShell = std::dynamic_pointer_cast<DrawViewShell>(rpViewShellWeak.lock());
+
+    if (pDrawViewShell)
+    {
+        maPosition.mePageKind = pDrawViewShell->GetPageKind();
+        maPosition.meEditMode = pDrawViewShell->GetEditMode();
+    }
+    else
+    {
+        maPosition.mePageKind = PageKind::Standard;
+        maPosition.meEditMode = EditMode::Page;
+    }
+}
+
+IteratorImplBase::IteratorImplBase( SdDrawDocument* pDocument,
+    const std::weak_ptr<ViewShell>& rpViewShellWeak,
+    bool bDirectionIsForward, PageKind ePageKind, EditMode eEditMode)
+: mpDocument (pDocument)
+, mpViewShellWeak (rpViewShellWeak)
+, mbDirectionIsForward (bDirectionIsForward)
+{
+    maPosition.mePageKind = ePageKind;
+    maPosition.meEditMode = eEditMode;
+}
+
+IteratorImplBase::~IteratorImplBase()
+{}
+
+bool IteratorImplBase::operator== (const IteratorImplBase& rIterator) const
+{
+    return maPosition == rIterator.maPosition;
+}
+
+bool IteratorImplBase::IsEqualSelection(const IteratorImplBase& rIterator) const
+{
+    // When this method is executed instead of the ones from derived classes
+    // then the argument is of another type then the object itself.  In this
+    // just compare the position objects.
+    return maPosition == rIterator.maPosition;
+}
+
+const IteratorPosition& IteratorImplBase::GetPosition()
+{
+    return maPosition;
+}
+
+IteratorImplBase* IteratorImplBase::Clone (IteratorImplBase* pObject) const
+{
+    if (pObject != nullptr)
+    {
+        pObject->maPosition = maPosition;
+        pObject->mpDocument = mpDocument;
+        pObject->mpViewShellWeak = mpViewShellWeak;
+        pObject->mbDirectionIsForward = mbDirectionIsForward;
+    }
+    return pObject;
+}
+
+void IteratorImplBase::Reverse()
+{
+    mbDirectionIsForward = ! mbDirectionIsForward;
+}
+
+//===== SelectionIteratorImpl ===========================================
+
+SelectionIteratorImpl::SelectionIteratorImpl (
+    const ::std::vector<::tools::WeakReference<SdrObject>>& rObjectList,
+    sal_Int32 nObjectIndex,
+    SdDrawDocument* pDocument,
+    const std::weak_ptr<ViewShell>& rpViewShellWeak,
+    bool bDirectionIsForward)
+    : IteratorImplBase (pDocument, rpViewShellWeak, bDirectionIsForward),
+      mrObjectList(rObjectList),
+      mnObjectIndex(nObjectIndex)
+{
+}
+
+SelectionIteratorImpl::~SelectionIteratorImpl()
+{}
+
+IteratorImplBase* SelectionIteratorImpl::Clone (IteratorImplBase* pObject) const
+{
+    SelectionIteratorImpl* pIterator = static_cast<SelectionIteratorImpl*>(pObject);
+    if (pIterator == nullptr)
+        pIterator = new SelectionIteratorImpl (
+            mrObjectList, mnObjectIndex, mpDocument, mpViewShellWeak, mbDirectionIsForward);
+    return pIterator;
+}
+
+void SelectionIteratorImpl::GotoNextText()
+{
+    SdrTextObj* pTextObj = dynamic_cast< SdrTextObj* >( mrObjectList.at(mnObjectIndex).get() );
+    if (mbDirectionIsForward)
+    {
+        if( pTextObj )
+        {
+            ++maPosition.mnText;
+            if( maPosition.mnText >= pTextObj->getTextCount() )
+            {
+                maPosition.mnText = 0;
+                ++mnObjectIndex;
+            }
+        }
+        else
+        {
+            ++mnObjectIndex;
+        }
+    }
+    else
+    {
+        if( pTextObj )
+        {
+            --maPosition.mnText;
+            if( maPosition.mnText < 0 )
+            {
+                maPosition.mnText = -1;
+                --mnObjectIndex;
+            }
+        }
+        else
+        {
+            --mnObjectIndex;
+            maPosition.mnText = -1;
+        }
+
+        if( (maPosition.mnText == -1) && (mnObjectIndex >= 0) )
+        {
+            pTextObj = dynamic_cast< SdrTextObj* >( mrObjectList.at(mnObjectIndex).get() );
+            if( pTextObj )
+                maPosition.mnText = pTextObj->getTextCount() - 1;
+        }
+
+        if( maPosition.mnText == -1 )
+            maPosition.mnText = 0;
+    }
+}
+
+const IteratorPosition& SelectionIteratorImpl::GetPosition()
+{
+    maPosition.mxObject = mrObjectList.at(mnObjectIndex);
+
+    return maPosition;
+}
+
+bool SelectionIteratorImpl::operator== (const IteratorImplBase& rIterator) const
+{
+    return rIterator.IsEqualSelection(*this);
+}
+
+bool SelectionIteratorImpl::IsEqualSelection(const IteratorImplBase& rIterator) const
+{
+    const SelectionIteratorImpl* pSelectionIterator =
+        static_cast<const SelectionIteratorImpl*>(&rIterator);
+    return mpDocument == pSelectionIterator->mpDocument
+        && mnObjectIndex == pSelectionIterator->mnObjectIndex;
+}
+
+//===== ViewIteratorImpl ================================================
+
+ViewIteratorImpl::ViewIteratorImpl (
+    sal_Int32 nPageIndex,
+    SdDrawDocument* pDocument,
+    const std::weak_ptr<ViewShell>& rpViewShellWeak,
+    bool bDirectionIsForward)
+    : IteratorImplBase (pDocument, rpViewShellWeak, bDirectionIsForward),
+      mbPageChangeOccurred(false),
+      mpPage(nullptr)
+{
+    SetPage (nPageIndex);
+}
+
+ViewIteratorImpl::ViewIteratorImpl (
+    sal_Int32 nPageIndex,
+    SdDrawDocument* pDocument,
+    const std::weak_ptr<ViewShell>& rpViewShellWeak,
+    bool bDirectionIsForward,
+    PageKind ePageKind,
+    EditMode eEditMode)
+    : IteratorImplBase (pDocument, rpViewShellWeak, bDirectionIsForward, ePageKind, eEditMode),
+      mbPageChangeOccurred(false),
+      mpPage(nullptr)
+{
+    SetPage (nPageIndex);
+}
+
+ViewIteratorImpl::~ViewIteratorImpl()
+{
+}
+
+IteratorImplBase* ViewIteratorImpl::Clone (IteratorImplBase* pObject) const
+{
+
+    ViewIteratorImpl* pIterator = static_cast<ViewIteratorImpl*>(pObject);
+    if (pIterator == nullptr)
+        pIterator = new ViewIteratorImpl (
+            maPosition.mnPageIndex, mpDocument, mpViewShellWeak, mbDirectionIsForward);
+
+    IteratorImplBase::Clone (pObject);
+
+    if (mpObjectIterator != nullptr)
+    {
+        pIterator->mpObjectIterator.reset( new SdrObjListIter(mpPage, SdrIterMode::DeepNoGroups, !mbDirectionIsForward) );
+
+        // No direct way to set the object iterator to the current object.
+        pIterator->maPosition.mxObject.reset(nullptr);
+        while (pIterator->mpObjectIterator->IsMore() && pIterator->maPosition.mxObject!=maPosition.mxObject)
+            pIterator->maPosition.mxObject.reset(pIterator->mpObjectIterator->Next());
+    }
+    else
+        pIterator->mpObjectIterator.reset();
+
+    return pIterator;
+}
+
+void ViewIteratorImpl::GotoNextText()
+{
+    SdrTextObj* pTextObj = dynamic_cast< SdrTextObj* >( maPosition.mxObject.get() );
+    if( pTextObj )
+    {
+        if (mbDirectionIsForward)
+        {
+            ++maPosition.mnText;
+            if( maPosition.mnText < pTextObj->getTextCount() )
+                return;
+        }
+        else
+        {
+            --maPosition.mnText;
+            if( maPosition.mnText >= 0 )
+                return;
+        }
+    }
+
+    if (mpObjectIterator != nullptr && mpObjectIterator->IsMore())
+        maPosition.mxObject.reset(mpObjectIterator->Next());
+    else
+        maPosition.mxObject.reset(nullptr);
+
+    if (!maPosition.mxObject.is() )
+    {
+        if (mbDirectionIsForward)
+            SetPage (maPosition.mnPageIndex+1);
+        else
+            SetPage (maPosition.mnPageIndex-1);
+
+        if (mpPage != nullptr)
+            mpObjectIterator.reset( new SdrObjListIter(mpPage, SdrIterMode::DeepNoGroups, !mbDirectionIsForward) );
+        if (mpObjectIterator!=nullptr && mpObjectIterator->IsMore())
+            maPosition.mxObject.reset(mpObjectIterator->Next());
+        else
+            maPosition.mxObject.reset(nullptr);
+    }
+
+    maPosition.mnText = 0;
+    if( !mbDirectionIsForward && maPosition.mxObject.is() )
+    {
+        pTextObj = dynamic_cast< SdrTextObj* >( maPosition.mxObject.get() );
+        if( pTextObj )
+            maPosition.mnText = pTextObj->getTextCount() - 1;
+    }
+}
+
+void ViewIteratorImpl::SetPage (sal_Int32 nPageIndex)
+{
+    mbPageChangeOccurred = (maPosition.mnPageIndex!=nPageIndex);
+    if (mbPageChangeOccurred)
+    {
+        maPosition.mnPageIndex = nPageIndex;
+
+        sal_Int32 nPageCount;
+        if (maPosition.meEditMode == EditMode::Page)
+            nPageCount = mpDocument->GetSdPageCount(maPosition.mePageKind);
+        else
+            nPageCount = mpDocument->GetMasterSdPageCount(
+                maPosition.mePageKind);
+
+        // Get page pointer.  Here we have three cases: regular pages,
+        // master pages and invalid page indices.  The later ones are not
+        // errors but the effect of the iterator advancing to the next page
+        // and going past the last one.  This dropping of the rim at the far
+        // side is detected here and has to be reacted to by the caller.
+        if (nPageIndex>=0 && nPageIndex < nPageCount)
+        {
+            if (maPosition.meEditMode == EditMode::Page)
+                mpPage = mpDocument->GetSdPage (
+                    static_cast<sal_uInt16>(nPageIndex),
+                    maPosition.mePageKind);
+            else
+                mpPage = mpDocument->GetMasterSdPage (
+                    static_cast<sal_uInt16>(nPageIndex),
+                    maPosition.mePageKind);
+        }
+        else
+            mpPage = nullptr;
+    }
+
+    // Set up object list iterator.
+    if (mpPage != nullptr)
+        mpObjectIterator.reset( new SdrObjListIter(mpPage, SdrIterMode::DeepNoGroups, ! mbDirectionIsForward) );
+    else
+        mpObjectIterator.reset();
+
+    // Get object pointer.
+    if (mpObjectIterator!=nullptr && mpObjectIterator->IsMore())
+        maPosition.mxObject.reset( mpObjectIterator->Next() );
+    else
+        maPosition.mxObject.reset(nullptr);
+
+    maPosition.mnText = 0;
+    if( !mbDirectionIsForward && maPosition.mxObject.is() )
+    {
+        SdrTextObj* pTextObj = dynamic_cast< SdrTextObj* >( maPosition.mxObject.get() );
+        if( pTextObj )
+            maPosition.mnText = pTextObj->getTextCount() - 1;
+    }
+
+}
+
+void ViewIteratorImpl::Reverse()
+{
+    IteratorImplBase::Reverse ();
+
+    // Create reversed object list iterator.
+    if (mpPage != nullptr)
+        mpObjectIterator.reset( new SdrObjListIter(mpPage, SdrIterMode::DeepNoGroups, ! mbDirectionIsForward) );
+    else
+        mpObjectIterator.reset();
+
+    // Move iterator to the current object.
+    ::tools::WeakReference<SdrObject> xObject = std::move(maPosition.mxObject);
+
+    if (!mpObjectIterator)
+        return;
+
+    while (mpObjectIterator->IsMore() && maPosition.mxObject != xObject)
+        maPosition.mxObject.reset(mpObjectIterator->Next());
+}
+
+//===== DocumentIteratorImpl ============================================
+
+DocumentIteratorImpl::DocumentIteratorImpl (
+    sal_Int32 nPageIndex,
+    PageKind ePageKind, EditMode eEditMode,
+    SdDrawDocument* pDocument,
+    const std::weak_ptr<ViewShell>& rpViewShellWeak,
+    bool bDirectionIsForward)
+    : ViewIteratorImpl (nPageIndex, pDocument, rpViewShellWeak, bDirectionIsForward,
+        ePageKind, eEditMode)
+{
+    if (eEditMode == EditMode::Page)
+        mnPageCount = pDocument->GetSdPageCount (ePageKind);
+    else
+        mnPageCount = pDocument->GetMasterSdPageCount(ePageKind);
+}
+
+DocumentIteratorImpl::~DocumentIteratorImpl()
+{}
+
+IteratorImplBase* DocumentIteratorImpl::Clone (IteratorImplBase* pObject) const
+{
+    DocumentIteratorImpl* pIterator = static_cast<DocumentIteratorImpl*>(pObject);
+    if (pIterator == nullptr)
+        pIterator = new DocumentIteratorImpl (
+            maPosition.mnPageIndex, maPosition.mePageKind, maPosition.meEditMode,
+            mpDocument, mpViewShellWeak, mbDirectionIsForward);
+    // Finish the cloning.
+    return ViewIteratorImpl::Clone (pIterator);
+}
+
+void DocumentIteratorImpl::GotoNextText()
+{
+    bool bSetToOnePastLastPage = false;
+    bool bViewChanged = false;
+
+    ViewIteratorImpl::GotoNextText();
+
+    if (mbDirectionIsForward)
+    {
+        if (maPosition.mnPageIndex >= mnPageCount)
+        {
+            // Switch to master page.
+            if (maPosition.meEditMode == EditMode::Page)
+            {
+                maPosition.meEditMode = EditMode::MasterPage;
+                SetPage (0);
+            }
+
+            // Switch to next view mode.
+            else
+            {
+                if (maPosition.mePageKind == PageKind::Handout)
+                    // Not really necessary but makes things more clear.
+                    bSetToOnePastLastPage = true;
+                else
+                {
+                    maPosition.meEditMode = EditMode::Page;
+                    if (maPosition.mePageKind == PageKind::Standard)
+                        maPosition.mePageKind = PageKind::Notes;
+                    else if (maPosition.mePageKind == PageKind::Notes)
+                        maPosition.mePageKind = PageKind::Handout;
+                    SetPage (0);
+                }
+            }
+            bViewChanged = true;
+        }
+    }
+    else
+        if (maPosition.mnPageIndex < 0)
+        {
+            // Switch from master pages to draw pages.
+            if (maPosition.meEditMode == EditMode::MasterPage)
+            {
+                maPosition.meEditMode = EditMode::Page;
+                bSetToOnePastLastPage = true;
+            }
+
+            // Switch to previous view mode.
+            else
+            {
+                if (maPosition.mePageKind == PageKind::Standard)
+                    SetPage (-1);
+                else
+                {
+                    maPosition.meEditMode = EditMode::MasterPage;
+                    if (maPosition.mePageKind == PageKind::Handout)
+                        maPosition.mePageKind = PageKind::Notes;
+                    else if (maPosition.mePageKind == PageKind::Notes)
+                        maPosition.mePageKind = PageKind::Standard;
+                    bSetToOnePastLastPage = true;
+                }
+            }
+            bViewChanged = true;
+        }
+
+    if (!bViewChanged)
+        return;
+
+    // Get new page count;
+    sal_Int32 nPageCount;
+    if (maPosition.meEditMode == EditMode::Page)
+        nPageCount = mpDocument->GetSdPageCount (maPosition.mePageKind);
+    else
+        nPageCount = mpDocument->GetMasterSdPageCount(maPosition.mePageKind);
+
+    // Now that we know the number of pages we can set the current page index.
+    if (bSetToOnePastLastPage)
+        SetPage (nPageCount);
+}
+
+} // end of namespace ::sd::outliner
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */