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

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

1 files changed, 881 insertions, 0 deletions

diff --git a/svx/source/svdraw/svdpagv.cxx b/svx/source/svdraw/svdpagv.cxx
new file mode 100644
index 000000000..480182782
--- /dev/null
+++ b/svx/source/svdraw/svdpagv.cxx
@@ -0,0 +1,881 @@
+/* -*- 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 <svx/svdpagv.hxx>
+#include <svx/svdpage.hxx>
+#include <svx/svdview.hxx>
+
+#include <svx/svdobj.hxx>
+#include <svx/svdogrp.hxx>
+#include <svx/svdtypes.hxx>
+
+#include <svx/sdr/contact/viewobjectcontactredirector.hxx>
+
+#include <algorithm>
+
+#include <svx/sdrpagewindow.hxx>
+#include <svx/sdrpaintwindow.hxx>
+#include <comphelper/lok.hxx>
+#include <comphelper/scopeguard.hxx>
+#include <basegfx/range/b2irectangle.hxx>
+
+using namespace ::com::sun::star;
+
+// interface to SdrPageWindow
+
+SdrPageWindow* SdrPageView::FindPageWindow(SdrPaintWindow& rPaintWindow) const
+{
+    for(auto & a : maPageWindows)
+    {
+        if(&(a->GetPaintWindow()) == &rPaintWindow)
+        {
+            return a.get();
+        }
+    }
+
+    return nullptr;
+}
+
+const SdrPageWindow* SdrPageView::FindPatchedPageWindow( const OutputDevice& _rOutDev ) const
+{
+    for ( auto const & pPageWindow : maPageWindows )
+    {
+        const SdrPaintWindow& rPaintWindow( pPageWindow->GetOriginalPaintWindow() ? *pPageWindow->GetOriginalPaintWindow() : pPageWindow->GetPaintWindow() );
+        if ( &rPaintWindow.GetOutputDevice() == &_rOutDev )
+        {
+            return pPageWindow.get();
+        }
+    }
+
+    return nullptr;
+}
+
+SdrPageWindow* SdrPageView::FindPageWindow(const OutputDevice& rOutDev) const
+{
+    for ( auto const & pPageWindow : maPageWindows )
+    {
+        if(&(pPageWindow->GetPaintWindow().GetOutputDevice()) == &rOutDev)
+        {
+            return pPageWindow.get();
+        }
+    }
+
+    return nullptr;
+}
+
+SdrPageWindow* SdrPageView::GetPageWindow(sal_uInt32 nIndex) const
+{
+    return maPageWindows[nIndex].get();
+}
+
+SdrPageView::SdrPageView(SdrPage* pPage1, SdrView& rNewView)
+:   mrView(rNewView),
+    // col_auto color lets the view takes the default SvxColorConfig entry
+    maDocumentColor( COL_AUTO ),
+    maBackgroundColor( COL_AUTO ), // #i48367# also react on autocolor
+    mpPreparedPageWindow(nullptr) // #i72752#
+{
+    mpPage = pPage1;
+
+    if(mpPage)
+    {
+        aPgOrg.setX(mpPage->GetLeftBorder() );
+        aPgOrg.setY(mpPage->GetUpperBorder() );
+    }
+    // For example, in the case of charts, there is a LayerAdmin, but it has no valid values. Therefore
+    // a solution like pLayerAdmin->getVisibleLayersODF(aLayerVisi) is not possible. So use the
+    // generic SetAll() for now.
+    aLayerVisi.SetAll();
+    aLayerPrn.SetAll();
+
+    mbHasMarked = false;
+    mbVisible = false;
+    pCurrentList = nullptr;
+    pCurrentGroup = nullptr;
+    SetCurrentGroupAndList(nullptr, mpPage);
+
+    for(sal_uInt32 a(0); a < rNewView.PaintWindowCount(); a++)
+    {
+        AddPaintWindowToPageView(*rNewView.GetPaintWindow(a));
+    }
+}
+
+SdrPageView::~SdrPageView()
+{
+}
+
+void SdrPageView::AddPaintWindowToPageView(SdrPaintWindow& rPaintWindow)
+{
+    if(!FindPageWindow(rPaintWindow))
+    {
+        maPageWindows.emplace_back(new SdrPageWindow(*this, rPaintWindow));
+    }
+}
+
+void SdrPageView::RemovePaintWindowFromPageView(SdrPaintWindow& rPaintWindow)
+{
+    auto it = std::find_if(maPageWindows.begin(), maPageWindows.end(),
+        [&rPaintWindow](const std::unique_ptr<SdrPageWindow>& rpWindow) {
+            return &(rpWindow->GetPaintWindow()) == &rPaintWindow;
+        });
+    if (it != maPageWindows.end())
+        maPageWindows.erase(it);
+}
+
+css::uno::Reference< css::awt::XControlContainer > SdrPageView::GetControlContainer( const OutputDevice& _rDevice ) const
+{
+    css::uno::Reference< css::awt::XControlContainer > xReturn;
+    const SdrPageWindow* pCandidate = FindPatchedPageWindow( _rDevice );
+
+    if ( pCandidate )
+        xReturn = pCandidate->GetControlContainer();
+
+    return xReturn;
+}
+
+void SdrPageView::ModelHasChanged()
+{
+    if (GetCurrentGroup()!=nullptr) CheckCurrentGroup();
+}
+
+bool SdrPageView::IsReadOnly() const
+{
+    return (nullptr == GetPage() || GetView().GetModel()->IsReadOnly() || GetPage()->IsReadOnly() || GetObjList()->IsReadOnly());
+}
+
+void SdrPageView::Show()
+{
+    if(!IsVisible())
+    {
+        mbVisible = true;
+
+        for(sal_uInt32 a(0); a < GetView().PaintWindowCount(); a++)
+        {
+            AddPaintWindowToPageView(*GetView().GetPaintWindow(a));
+        }
+    }
+}
+
+void SdrPageView::Hide()
+{
+    if(IsVisible())
+    {
+        if (!comphelper::LibreOfficeKit::isActive())
+        {
+            InvalidateAllWin();
+        }
+        mbVisible = false;
+        maPageWindows.clear();
+    }
+}
+
+tools::Rectangle SdrPageView::GetPageRect() const
+{
+    if (GetPage()==nullptr) return tools::Rectangle();
+    return tools::Rectangle(Point(),Size(GetPage()->GetWidth()+1,GetPage()->GetHeight()+1));
+}
+
+void SdrPageView::InvalidateAllWin()
+{
+    if(IsVisible() && GetPage())
+    {
+        tools::Rectangle aRect(Point(0,0),Size(GetPage()->GetWidth()+1,GetPage()->GetHeight()+1));
+        aRect.Union(GetPage()->GetAllObjBoundRect());
+        GetView().InvalidateAllWin(aRect);
+    }
+}
+
+
+void SdrPageView::PrePaint()
+{
+    const sal_uInt32 nCount(PageWindowCount());
+
+    for(sal_uInt32 a(0); a < nCount; a++)
+    {
+        SdrPageWindow* pCandidate = GetPageWindow(a);
+
+        if(pCandidate)
+        {
+            pCandidate->PrePaint();
+        }
+    }
+}
+
+void SdrPageView::CompleteRedraw(
+    SdrPaintWindow& rPaintWindow, const vcl::Region& rReg, sdr::contact::ViewObjectContactRedirector* pRedirector )
+{
+    if(GetPage())
+    {
+        SdrPageWindow* pPageWindow = FindPageWindow(rPaintWindow);
+        std::unique_ptr<SdrPageWindow> pTempPageWindow;
+
+        if(!pPageWindow)
+        {
+            // create temp PageWindow
+            pTempPageWindow.reset(new SdrPageWindow(*this, rPaintWindow));
+            pPageWindow = pTempPageWindow.get();
+        }
+
+        // do the redraw
+        pPageWindow->PrepareRedraw(rReg);
+        pPageWindow->RedrawAll(pRedirector);
+    }
+}
+
+
+// #i74769# use SdrPaintWindow directly
+
+void SdrPageView::setPreparedPageWindow(SdrPageWindow* pKnownTarget)
+{
+    // #i72752# remember prepared SdrPageWindow
+    mpPreparedPageWindow = pKnownTarget;
+}
+
+void SdrPageView::DrawLayer(SdrLayerID nID, OutputDevice* pGivenTarget,
+        sdr::contact::ViewObjectContactRedirector* pRedirector,
+        const tools::Rectangle& rRect, basegfx::B2IRectangle const*const pPageFrame)
+{
+    if(GetPage())
+    {
+        if(pGivenTarget)
+        {
+            SdrPageWindow* pKnownTarget = FindPageWindow(*pGivenTarget);
+
+            if(pKnownTarget)
+            {
+                // paint known target
+                pKnownTarget->RedrawLayer(&nID, pRedirector, nullptr);
+            }
+            else
+            {
+                // #i72752# DrawLayer() uses an OutputDevice different from BeginDrawLayer. This happens
+                // e.g. when SW paints a single text line in text edit mode. Try to use it
+                SdrPageWindow* pPreparedTarget = mpPreparedPageWindow;
+
+                if(pPreparedTarget)
+                {
+                    // if we have a prepared target, do not use a new SdrPageWindow since this
+                    // works but is expensive. Just use a temporary PaintWindow
+                    SdrPaintWindow aTemporaryPaintWindow(mrView, *pGivenTarget);
+
+                    // Copy existing paint region to use the same as prepared in BeginDrawLayer
+                    SdrPaintWindow& rExistingPaintWindow = pPreparedTarget->GetPaintWindow();
+                    const vcl::Region& rExistingRegion = rExistingPaintWindow.GetRedrawRegion();
+                    bool bUseRect(false);
+                    if (!rRect.IsEmpty())
+                    {
+                        vcl::Region r(rExistingRegion);
+                        r.Intersect(rRect);
+                        // fdo#74435: FIXME: visibility check broken if empty
+                        if (!r.IsEmpty())
+                            bUseRect = true;
+                    }
+                    if (!bUseRect)
+                        aTemporaryPaintWindow.SetRedrawRegion(rExistingRegion);
+                    else
+                        aTemporaryPaintWindow.SetRedrawRegion(vcl::Region(rRect));
+                    // patch the ExistingPageWindow
+                    auto pPreviousWindow = pPreparedTarget->patchPaintWindow(aTemporaryPaintWindow);
+                    // unpatch window when leaving the scope
+                    const ::comphelper::ScopeGuard aGuard(
+                        [&pPreviousWindow, &pPreparedTarget]() { pPreparedTarget->unpatchPaintWindow(pPreviousWindow); } );
+                    
+                    // redraw the layer
+                    pPreparedTarget->RedrawLayer(&nID, pRedirector, pPageFrame);
+                }
+                else
+                {
+                    OSL_FAIL("SdrPageView::DrawLayer: Creating temporary SdrPageWindow (ObjectContact), this should never be needed (!)");
+
+                    // None of the known OutputDevices is the target of this paint, use
+                    // a temporary SdrPageWindow for this Redraw.
+                    SdrPaintWindow aTemporaryPaintWindow(mrView, *pGivenTarget);
+                    SdrPageWindow aTemporaryPageWindow(*this, aTemporaryPaintWindow);
+
+                    // #i72752#
+                    // Copy existing paint region if other PageWindows exist, this was created by
+                    // PrepareRedraw() from BeginDrawLayer(). Needs to be used e.g. when suddenly SW
+                    // paints into an unknown device other than the view was created for (e.g. VirtualDevice)
+                    if(PageWindowCount())
+                    {
+                        SdrPageWindow* pExistingPageWindow = GetPageWindow(0);
+                        SdrPaintWindow& rExistingPaintWindow = pExistingPageWindow->GetPaintWindow();
+                        const vcl::Region& rExistingRegion = rExistingPaintWindow.GetRedrawRegion();
+                        aTemporaryPaintWindow.SetRedrawRegion(rExistingRegion);
+                    }
+
+                    aTemporaryPageWindow.RedrawLayer(&nID, pRedirector, nullptr);
+                }
+            }
+        }
+        else
+        {
+            // paint in all known windows
+            for(sal_uInt32 a(0); a < PageWindowCount(); a++)
+            {
+                SdrPageWindow* pTarget = GetPageWindow(a);
+                pTarget->RedrawLayer(&nID, pRedirector, nullptr);
+            }
+        }
+    }
+}
+
+void SdrPageView::SetDesignMode( bool _bDesignMode ) const
+{
+    for ( sal_uInt32 i = 0; i < PageWindowCount(); ++i )
+    {
+        const SdrPageWindow& rPageViewWindow = *GetPageWindow(i);
+        rPageViewWindow.SetDesignMode( _bDesignMode );
+    }
+}
+
+
+void SdrPageView::DrawPageViewGrid(OutputDevice& rOut, const tools::Rectangle& rRect, Color aColor)
+{
+    if (GetPage()==nullptr)
+        return;
+
+    long nx1=GetView().maGridBig.Width();
+    long nx2=GetView().maGridFin.Width();
+    long ny1=GetView().maGridBig.Height();
+    long ny2=GetView().maGridFin.Height();
+
+    if (nx1==0) nx1=nx2;
+    if (nx2==0) nx2=nx1;
+    if (ny1==0) ny1=ny2;
+    if (ny2==0) ny2=ny1;
+    if (nx1==0) { nx1=ny1; nx2=ny2; }
+    if (ny1==0) { ny1=nx1; ny2=nx2; }
+    if (nx1<0) nx1=-nx1;
+    if (nx2<0) nx2=-nx2;
+    if (ny1<0) ny1=-ny1;
+    if (ny2<0) ny2=-ny2;
+
+    if (nx1==0)
+        return;
+
+    // no more global output size, use window size instead to decide grid sizes
+    long nScreenWdt = rOut.GetOutputSizePixel().Width();
+
+    long nMinDotPix=2;
+    long nMinLinPix=4;
+
+    if (nScreenWdt>=1600)
+    {
+        nMinDotPix=4;
+        nMinLinPix=8;
+    }
+    else if (nScreenWdt>=1024)
+    {
+        nMinDotPix=3;
+        nMinLinPix=6;
+    }
+    else
+    { // e. g. 640x480
+        nMinDotPix=2;
+        nMinLinPix=4;
+    }
+    Size aMinDotDist(rOut.PixelToLogic(Size(nMinDotPix,nMinDotPix)));
+    Size aMinLinDist(rOut.PixelToLogic(Size(nMinLinPix,nMinLinPix)));
+    bool bHoriSolid=nx2<aMinDotDist.Width();
+    bool bVertSolid=ny2<aMinDotDist.Height();
+    // enlarge line offset (minimum 4 pixels)
+    // enlarge by: *2 *5 *10 *20 *50 *100 ...
+    int nTgl=0;
+    long nVal0=nx1;
+    while (nx1<aMinLinDist.Width())
+    {
+        long a=nx1;
+
+        if (nTgl==0) nx1*=2;
+        if (nTgl==1) nx1=nVal0*5; // => nx1*=2.5
+        if (nTgl==2) nx1*=2;
+
+        nVal0=a;
+        nTgl++; if (nTgl>=3) nTgl=0;
+    }
+    nTgl=0;
+    nVal0=ny1;
+    while (ny1<aMinLinDist.Height())
+    {
+        long a=ny1;
+
+        if (nTgl==0) ny1*=2;
+        if (nTgl==1) ny1=nVal0*5; // => ny1*=2.5
+        if (nTgl==2) ny1*=2;
+
+        nVal0=a;
+        nTgl++;
+
+        if (nTgl>=3) nTgl=0;
+    }
+
+    bool bHoriFine=nx2<nx1;
+    bool bVertFine=ny2<ny1;
+    bool bHoriLines=bHoriSolid || bHoriFine || !bVertFine;
+    bool bVertLines=bVertSolid || bVertFine;
+
+    Color aOriginalLineColor( rOut.GetLineColor() );
+    rOut.SetLineColor( aColor );
+
+    bool bMap0=rOut.IsMapModeEnabled();
+
+    long nWrX=0;
+    long nWrY=0;
+    Point aOrg(aPgOrg);
+    long x1=GetPage()->GetLeftBorder()+1+nWrX;
+    long x2=GetPage()->GetWidth()-GetPage()->GetRightBorder()-1+nWrY;
+    long y1=GetPage()->GetUpperBorder()+1+nWrX;
+    long y2=GetPage()->GetHeight()-GetPage()->GetLowerBorder()-1+nWrY;
+    const SdrPageGridFrameList* pFrames=GetPage()->GetGridFrameList(this,nullptr);
+
+    sal_uInt16 nGridPaintCnt=1;
+    if (pFrames!=nullptr) nGridPaintCnt=pFrames->GetCount();
+    for (sal_uInt16 nGridPaintNum=0; nGridPaintNum<nGridPaintCnt; nGridPaintNum++) {
+        if (pFrames!=nullptr) {
+            const SdrPageGridFrame& rGF=(*pFrames)[nGridPaintNum];
+            nWrX=rGF.GetPaperRect().Left();
+            nWrY=rGF.GetPaperRect().Top();
+            x1=rGF.GetUserArea().Left();
+            x2=rGF.GetUserArea().Right();
+            y1=rGF.GetUserArea().Top();
+            y2=rGF.GetUserArea().Bottom();
+            aOrg=rGF.GetUserArea().TopLeft();
+            aOrg-=rGF.GetPaperRect().TopLeft();
+        }
+        if (!rRect.IsEmpty()) {
+            Size a1PixSiz(rOut.PixelToLogic(Size(1,1)));
+            long nX1Pix=a1PixSiz.Width();  // add 1 pixel of tolerance
+            long nY1Pix=a1PixSiz.Height();
+            if (x1<rRect.Left()  -nX1Pix) x1=rRect.Left()  -nX1Pix;
+            if (x2>rRect.Right() +nX1Pix) x2=rRect.Right() +nX1Pix;
+            if (y1<rRect.Top()   -nY1Pix) y1=rRect.Top()   -nY1Pix;
+            if (y2>rRect.Bottom()+nY1Pix) y2=rRect.Bottom()+nY1Pix;
+        }
+
+        long xBigOrg=aOrg.X()+nWrX;
+        while (xBigOrg>=x1) xBigOrg-=nx1;
+        while (xBigOrg<x1) xBigOrg+=nx1;
+        long xFinOrg=xBigOrg;
+        while (xFinOrg>=x1) xFinOrg-=nx2;
+        while (xFinOrg<x1) xFinOrg+=nx2;
+
+        long yBigOrg=aOrg.Y()+nWrY;
+        while (yBigOrg>=y1) yBigOrg-=ny1;
+        while (yBigOrg<y1) yBigOrg+=ny1;
+        long yFinOrg=yBigOrg;
+        while (yFinOrg>=y1) yFinOrg-=ny2;
+        while (yFinOrg<y1) yFinOrg+=ny2;
+
+        if( x1 <= x2 && y1 <= y2 )
+        {
+            if( bHoriLines )
+            {
+                DrawGridFlags nGridFlags = ( bHoriSolid ? DrawGridFlags::HorzLines : DrawGridFlags::Dots );
+                sal_uInt16 nSteps = sal_uInt16(nx1 / nx2);
+                sal_uInt32 nRestPerStepMul1000 = nSteps ? ( ((nx1 * 1000)/ nSteps) - (nx2 * 1000) ) : 0;
+                sal_uInt32 nStepOffset = 0;
+                sal_uInt16 nPointOffset = 0;
+
+                for(sal_uInt16 a=0;a<nSteps;a++)
+                {
+                    // draw
+                    rOut.DrawGrid(
+                        tools::Rectangle( xFinOrg + (a * nx2) + nPointOffset, yBigOrg, x2, y2 ),
+                        Size( nx1, ny1 ), nGridFlags );
+
+                    // do a step
+                    nStepOffset += nRestPerStepMul1000;
+                    while(nStepOffset >= 1000)
+                    {
+                        nStepOffset -= 1000;
+                        nPointOffset++;
+                    }
+                }
+            }
+
+            if( bVertLines )
+            {
+                DrawGridFlags nGridFlags = ( bVertSolid ? DrawGridFlags::VertLines : DrawGridFlags::Dots );
+                sal_uInt16 nSteps = sal_uInt16(ny1 / ny2);
+                sal_uInt32 nRestPerStepMul1000 = nSteps ? ( ((ny1 * 1000L)/ nSteps) - (ny2 * 1000L) ) : 0;
+                sal_uInt32 nStepOffset = 0;
+                sal_uInt16 nPointOffset = 0;
+
+                for(sal_uInt16 a=0;a<nSteps;a++)
+                {
+                    // draw
+                    rOut.DrawGrid(
+                        tools::Rectangle( xBigOrg, yFinOrg + (a * ny2) + nPointOffset, x2, y2 ),
+                        Size( nx1, ny1 ), nGridFlags );
+
+                    // do a step
+                    nStepOffset += nRestPerStepMul1000;
+                    while(nStepOffset >= 1000)
+                    {
+                        nStepOffset -= 1000;
+                        nPointOffset++;
+                    }
+                }
+            }
+        }
+    }
+
+    rOut.EnableMapMode(bMap0);
+    rOut.SetLineColor(aOriginalLineColor);
+}
+
+void SdrPageView::AdjHdl()
+{
+    GetView().AdjustMarkHdl();
+}
+
+void SdrPageView::SetLayer(const OUString& rName, SdrLayerIDSet& rBS, bool bJa)
+{
+    if(!GetPage())
+        return;
+
+    SdrLayerID nID = GetPage()->GetLayerAdmin().GetLayerID(rName);
+
+    if(SDRLAYER_NOTFOUND != nID)
+        rBS.Set(nID, bJa);
+}
+
+bool SdrPageView::IsLayer(const OUString& rName, const SdrLayerIDSet& rBS) const
+{
+    if(!GetPage())
+        return false;
+
+    bool bRet(false);
+
+    if (!rName.isEmpty())
+    {
+        SdrLayerID nId = GetPage()->GetLayerAdmin().GetLayerID(rName);
+
+        if(SDRLAYER_NOTFOUND != nId)
+        {
+            bRet = rBS.IsSet(nId);
+        }
+    }
+
+    return bRet;
+}
+
+bool SdrPageView::IsObjMarkable(SdrObject const * pObj) const
+{
+    if (!pObj)
+        return false;
+    if (pObj->IsMarkProtect())
+        return false;    // excluded from selection?
+    if (!pObj->IsVisible())
+        return false;    // only visible are selectable
+    if (!pObj->IsInserted())
+        return false;    // Obj deleted?
+    if (auto pObjGroup = dynamic_cast<const SdrObjGroup*>(pObj))
+    {
+        // If object is a Group object, visibility may depend on
+        // multiple layers. If one object is markable, Group is markable.
+        SdrObjList* pObjList = pObjGroup->GetSubList();
+
+        if (pObjList && pObjList->GetObjCount())
+        {
+            for (size_t a = 0; a < pObjList->GetObjCount(); ++a)
+            {
+                SdrObject* pCandidate = pObjList->GetObj(a);
+                // call recursively
+                if (IsObjMarkable(pCandidate))
+                    return true;
+            }
+            return false;
+        }
+        else
+        {
+            // #i43302#
+            // Allow empty groups to be selected to be able to delete them
+            return true;
+        }
+    }
+    if (!pObj->Is3DObj() && pObj->getSdrPageFromSdrObject() != GetPage())
+    {
+        // Obj suddenly in different Page
+        return false;
+    }
+
+    // the layer has to be visible and must not be locked
+    SdrLayerID nL = pObj->GetLayer();
+    if (!aLayerVisi.IsSet(nL))
+        return false;
+    if (aLayerLock.IsSet(nL))
+        return false;
+    return true;
+}
+
+void SdrPageView::SetPageOrigin(const Point& rOrg)
+{
+    if (rOrg!=aPgOrg) {
+        aPgOrg=rOrg;
+        if (GetView().IsGridVisible()) {
+            InvalidateAllWin();
+        }
+    }
+}
+
+void SdrPageView::ImpInvalidateHelpLineArea(sal_uInt16 nNum) const
+{
+    if (GetView().IsHlplVisible() && nNum<aHelpLines.GetCount()) {
+        const SdrHelpLine& rHL=aHelpLines[nNum];
+
+        for(sal_uInt32 a(0); a < GetView().PaintWindowCount(); a++)
+        {
+            SdrPaintWindow* pCandidate = GetView().GetPaintWindow(a);
+
+            if(pCandidate->OutputToWindow())
+            {
+                OutputDevice& rOutDev = pCandidate->GetOutputDevice();
+                tools::Rectangle aR(rHL.GetBoundRect(rOutDev));
+                Size aSiz(rOutDev.PixelToLogic(Size(1,1)));
+                aR.AdjustLeft( -(aSiz.Width()) );
+                aR.AdjustRight(aSiz.Width() );
+                aR.AdjustTop( -(aSiz.Height()) );
+                aR.AdjustBottom(aSiz.Height() );
+                const_cast<SdrView&>(GetView()).InvalidateOneWin(rOutDev, aR);
+            }
+        }
+    }
+}
+
+void SdrPageView::SetHelpLines(const SdrHelpLineList& rHLL)
+{
+    aHelpLines=rHLL;
+    InvalidateAllWin();
+}
+
+void SdrPageView::SetHelpLine(sal_uInt16 nNum, const SdrHelpLine& rNewHelpLine)
+{
+    if (nNum<aHelpLines.GetCount() && aHelpLines[nNum]!=rNewHelpLine) {
+        bool bNeedRedraw = true;
+        if (aHelpLines[nNum].GetKind()==rNewHelpLine.GetKind()) {
+            switch (rNewHelpLine.GetKind()) {
+                case SdrHelpLineKind::Vertical  : if (aHelpLines[nNum].GetPos().X()==rNewHelpLine.GetPos().X()) bNeedRedraw = false; break;
+                case SdrHelpLineKind::Horizontal: if (aHelpLines[nNum].GetPos().Y()==rNewHelpLine.GetPos().Y()) bNeedRedraw = false; break;
+                default: break;
+            } // switch
+        }
+        if (bNeedRedraw) ImpInvalidateHelpLineArea(nNum);
+        aHelpLines[nNum]=rNewHelpLine;
+        if (bNeedRedraw) ImpInvalidateHelpLineArea(nNum);
+    }
+}
+
+void SdrPageView::DeleteHelpLine(sal_uInt16 nNum)
+{
+    if (nNum<aHelpLines.GetCount()) {
+        ImpInvalidateHelpLineArea(nNum);
+        aHelpLines.Delete(nNum);
+    }
+}
+
+void SdrPageView::InsertHelpLine(const SdrHelpLine& rHL)
+{
+    sal_uInt16 nNum = aHelpLines.GetCount();
+    aHelpLines.Insert(rHL,nNum);
+    if (GetView().IsHlplVisible())
+        ImpInvalidateHelpLineArea(nNum);
+}
+
+// set current group and list
+void SdrPageView::SetCurrentGroupAndList(SdrObject* pNewGroup, SdrObjList* pNewList)
+{
+    if(pCurrentGroup != pNewGroup)
+    {
+        pCurrentGroup = pNewGroup;
+    }
+    if(pCurrentList != pNewList)
+    {
+        pCurrentList = pNewList;
+    }
+}
+
+bool SdrPageView::EnterGroup(SdrObject* pObj)
+{
+    bool bRet(false);
+
+    if(pObj && pObj->IsGroupObject())
+    {
+        bool bGlueInvalidate(GetView().ImpIsGlueVisible());
+
+        if(bGlueInvalidate)
+        {
+            GetView().GlueInvalidate();
+        }
+
+        // deselect all
+        GetView().UnmarkAll();
+
+        // set current group and list
+        SdrObjList* pNewObjList = pObj->GetSubList();
+        SetCurrentGroupAndList(pObj, pNewObjList);
+
+        // select contained object if only one object is contained,
+        // else select nothing and let the user decide what to do next
+        if(pNewObjList && pNewObjList->GetObjCount() == 1)
+        {
+            SdrObject* pFirstObject = pNewObjList->GetObj(0);
+
+            if(GetView().GetSdrPageView())
+            {
+                GetView().MarkObj(pFirstObject, GetView().GetSdrPageView());
+            }
+        }
+
+        // build new handles
+        GetView().AdjustMarkHdl();
+
+        // invalidate only when view wants to visualize group entering
+        InvalidateAllWin();
+
+        if (bGlueInvalidate)
+        {
+            GetView().GlueInvalidate();
+        }
+
+        bRet = true;
+    }
+
+    return bRet;
+}
+
+void SdrPageView::LeaveOneGroup()
+{
+    SdrObject* pLastGroup = GetCurrentGroup();
+    if (!pLastGroup)
+        return;
+
+    bool bGlueInvalidate = GetView().ImpIsGlueVisible();
+
+    if(bGlueInvalidate)
+        GetView().GlueInvalidate();
+
+    SdrObject* pParentGroup = pLastGroup->getParentSdrObjectFromSdrObject();
+    SdrObjList* pParentList = GetPage();
+
+    if(pParentGroup)
+        pParentList = pParentGroup->GetSubList();
+
+    // deselect everything
+    GetView().UnmarkAll();
+
+    // allocations, pCurrentGroup and pCurrentList need to be set
+    SetCurrentGroupAndList(pParentGroup, pParentList);
+
+    // select the group we just left
+    if (GetView().GetSdrPageView())
+        GetView().MarkObj(pLastGroup, GetView().GetSdrPageView());
+
+    GetView().AdjustMarkHdl();
+
+    // invalidate only if view wants to visualize group entering
+    InvalidateAllWin();
+
+    if(bGlueInvalidate)
+        GetView().GlueInvalidate();
+}
+
+void SdrPageView::LeaveAllGroup()
+{
+    if (SdrObject* pLastGroup = GetCurrentGroup())
+    {
+        bool bGlueInvalidate = GetView().ImpIsGlueVisible();
+
+        if(bGlueInvalidate)
+            GetView().GlueInvalidate();
+
+        // deselect everything
+        GetView().UnmarkAll();
+
+        // allocations, pCurrentGroup and pCurrentList always need to be set
+        SetCurrentGroupAndList(nullptr, GetPage());
+
+        // find and select uppermost group
+        while (pLastGroup->getParentSdrObjectFromSdrObject())
+            pLastGroup = pLastGroup->getParentSdrObjectFromSdrObject();
+
+        if (GetView().GetSdrPageView())
+            GetView().MarkObj(pLastGroup, GetView().GetSdrPageView());
+
+        GetView().AdjustMarkHdl();
+
+        // invalidate only when view wants to visualize group entering
+        InvalidateAllWin();
+
+        if(bGlueInvalidate)
+            GetView().GlueInvalidate();
+    }
+}
+
+sal_uInt16 SdrPageView::GetEnteredLevel() const
+{
+    sal_uInt16 nCount=0;
+    SdrObject* pGrp=GetCurrentGroup();
+    while (pGrp!=nullptr) {
+        nCount++;
+        pGrp=pGrp->getParentSdrObjectFromSdrObject();
+    }
+    return nCount;
+}
+
+void SdrPageView::CheckCurrentGroup()
+{
+    SdrObject* pGrp(GetCurrentGroup());
+
+    while(nullptr != pGrp &&
+        (!pGrp->IsInserted() || nullptr == pGrp->getParentSdrObjListFromSdrObject() || nullptr == pGrp->getSdrPageFromSdrObject()))
+    {
+        // anything outside of the borders?
+        pGrp = pGrp->getParentSdrObjectFromSdrObject();
+    }
+
+    if(pGrp != GetCurrentGroup())
+    {
+        if(nullptr != pGrp)
+        {
+            EnterGroup(pGrp);
+        }
+        else
+        {
+            LeaveAllGroup();
+        }
+    }
+}
+
+// Set background color for svx at SdrPageViews
+void SdrPageView::SetApplicationBackgroundColor(Color aBackgroundColor)
+{
+    maBackgroundColor = aBackgroundColor;
+}
+
+
+// Set document color for svx at SdrPageViews
+void SdrPageView::SetApplicationDocumentColor(Color aDocumentColor)
+{
+    maDocumentColor = aDocumentColor;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */