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diff --git a/vcl/source/outdev/rect.cxx b/vcl/source/outdev/rect.cxx
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+++ b/vcl/source/outdev/rect.cxx
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+/* -*- 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 <sal/types.h>
+
+#include <tools/poly.hxx>
+#include <tools/helpers.hxx>
+#include <vcl/metaact.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/virdev.hxx>
+
+#include <salgdi.hxx>
+
+void OutputDevice::DrawRect( const tools::Rectangle& rRect )
+{
+    assert(!is_double_buffered_window());
+
+    if ( mpMetaFile )
+        mpMetaFile->AddAction( new MetaRectAction( rRect ) );
+
+    if ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || ImplIsRecordLayout() )
+        return;
+
+    tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
+
+    if ( aRect.IsEmpty() )
+        return;
+
+    aRect.Justify();
+
+    if ( !mpGraphics && !AcquireGraphics() )
+        return;
+
+    if ( mbInitClipRegion )
+        InitClipRegion();
+
+    if ( mbOutputClipped )
+        return;
+
+    if ( mbInitLineColor )
+        InitLineColor();
+
+    if ( mbInitFillColor )
+        InitFillColor();
+
+    mpGraphics->DrawRect( aRect.Left(), aRect.Top(), aRect.GetWidth(), aRect.GetHeight(), this );
+
+    if( mpAlphaVDev )
+        mpAlphaVDev->DrawRect( rRect );
+}
+
+void OutputDevice::DrawRect( const tools::Rectangle& rRect,
+                             sal_uLong nHorzRound, sal_uLong nVertRound )
+{
+    assert(!is_double_buffered_window());
+
+    if ( mpMetaFile )
+        mpMetaFile->AddAction( new MetaRoundRectAction( rRect, nHorzRound, nVertRound ) );
+
+    if ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || ImplIsRecordLayout() )
+        return;
+
+    const tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
+
+    if ( aRect.IsEmpty() )
+        return;
+
+    nHorzRound = ImplLogicWidthToDevicePixel( nHorzRound );
+    nVertRound = ImplLogicHeightToDevicePixel( nVertRound );
+
+    // we need a graphics
+    if ( !mpGraphics && !AcquireGraphics() )
+        return;
+
+    if ( mbInitClipRegion )
+        InitClipRegion();
+
+    if ( mbOutputClipped )
+        return;
+
+    if ( mbInitLineColor )
+        InitLineColor();
+
+    if ( mbInitFillColor )
+        InitFillColor();
+
+    if ( !nHorzRound && !nVertRound )
+    {
+        mpGraphics->DrawRect( aRect.Left(), aRect.Top(), aRect.GetWidth(), aRect.GetHeight(), this );
+    }
+    else
+    {
+        tools::Polygon aRoundRectPoly( aRect, nHorzRound, nVertRound );
+
+        if ( aRoundRectPoly.GetSize() >= 2 )
+        {
+            SalPoint* pPtAry = reinterpret_cast<SalPoint*>(aRoundRectPoly.GetPointAry());
+
+            if ( !mbFillColor )
+                mpGraphics->DrawPolyLine( aRoundRectPoly.GetSize(), pPtAry, this );
+            else
+                mpGraphics->DrawPolygon( aRoundRectPoly.GetSize(), pPtAry, this );
+        }
+    }
+
+    if( mpAlphaVDev )
+        mpAlphaVDev->DrawRect( rRect, nHorzRound, nVertRound );
+}
+
+void OutputDevice::Invert( const tools::Rectangle& rRect, InvertFlags nFlags )
+{
+    assert(!is_double_buffered_window());
+    if ( !IsDeviceOutputNecessary() )
+        return;
+
+    tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
+
+    if ( aRect.IsEmpty() )
+        return;
+    aRect.Justify();
+
+    // we need a graphics
+    if ( !mpGraphics && !AcquireGraphics() )
+        return;
+
+    if ( mbInitClipRegion )
+        InitClipRegion();
+
+    if ( mbOutputClipped )
+        return;
+
+    SalInvert nSalFlags = SalInvert::NONE;
+    if ( nFlags & InvertFlags::N50 )
+        nSalFlags |= SalInvert::N50;
+    if ( nFlags & InvertFlags::TrackFrame )
+        nSalFlags |= SalInvert::TrackFrame;
+    mpGraphics->Invert( aRect.Left(), aRect.Top(), aRect.GetWidth(), aRect.GetHeight(), nSalFlags, this );
+}
+
+void OutputDevice::Invert( const tools::Polygon& rPoly, InvertFlags nFlags )
+{
+    assert(!is_double_buffered_window());
+    if ( !IsDeviceOutputNecessary() )
+        return;
+
+    sal_uInt16 nPoints = rPoly.GetSize();
+
+    if ( nPoints < 2 )
+        return;
+
+    tools::Polygon aPoly( ImplLogicToDevicePixel( rPoly ) );
+
+    // we need a graphics
+    if ( !mpGraphics && !AcquireGraphics() )
+        return;
+
+    if ( mbInitClipRegion )
+        InitClipRegion();
+
+    if ( mbOutputClipped )
+        return;
+
+    SalInvert nSalFlags = SalInvert::NONE;
+    if ( nFlags & InvertFlags::N50 )
+        nSalFlags |= SalInvert::N50;
+    if ( nFlags & InvertFlags::TrackFrame )
+        nSalFlags |= SalInvert::TrackFrame;
+    const SalPoint* pPtAry = reinterpret_cast<const SalPoint*>(aPoly.GetConstPointAry());
+    mpGraphics->Invert( nPoints, pPtAry, nSalFlags, this );
+}
+
+void OutputDevice::DrawCheckered(const Point& rPos, const Size& rSize, sal_uInt32 nLen, Color aStart, Color aEnd)
+{
+    assert(!is_double_buffered_window());
+
+    const sal_uInt32 nMaxX(rPos.X() + rSize.Width());
+    const sal_uInt32 nMaxY(rPos.Y() + rSize.Height());
+
+    Push(PushFlags::LINECOLOR|PushFlags::FILLCOLOR);
+    SetLineColor();
+
+    for(sal_uInt32 x(0), nX(rPos.X()); nX < nMaxX; x++, nX += nLen)
+    {
+        const sal_uInt32 nRight(std::min(nMaxX, nX + nLen));
+
+        for(sal_uInt32 y(0), nY(rPos.Y()); nY < nMaxY; y++, nY += nLen)
+        {
+            const sal_uInt32 nBottom(std::min(nMaxY, nY + nLen));
+
+            SetFillColor(((x & 0x0001) ^ (y & 0x0001)) ? aStart : aEnd);
+            DrawRect(tools::Rectangle(nX, nY, nRight, nBottom));
+        }
+    }
+
+    Pop();
+}
+
+void OutputDevice::DrawGrid( const tools::Rectangle& rRect, const Size& rDist, DrawGridFlags nFlags )
+{
+    assert(!is_double_buffered_window());
+
+    tools::Rectangle aDstRect( PixelToLogic( Point() ), GetOutputSize() );
+    aDstRect.Intersection( rRect );
+
+    if( aDstRect.IsEmpty() || ImplIsRecordLayout() )
+        return;
+
+    if( !mpGraphics && !AcquireGraphics() )
+        return;
+
+    if( mbInitClipRegion )
+        InitClipRegion();
+
+    if( mbOutputClipped )
+        return;
+
+    const long nDistX = std::max( rDist.Width(), 1L );
+    const long nDistY = std::max( rDist.Height(), 1L );
+    long nX = ( rRect.Left() >= aDstRect.Left() ) ? rRect.Left() : ( rRect.Left() + ( ( aDstRect.Left() - rRect.Left() ) / nDistX ) * nDistX );
+    long nY = ( rRect.Top() >= aDstRect.Top() ) ? rRect.Top() : ( rRect.Top() + ( ( aDstRect.Top() - rRect.Top() ) / nDistY ) * nDistY );
+    const long nRight = aDstRect.Right();
+    const long nBottom = aDstRect.Bottom();
+    const long nStartX = ImplLogicXToDevicePixel( nX );
+    const long nEndX = ImplLogicXToDevicePixel( nRight );
+    const long nStartY = ImplLogicYToDevicePixel( nY );
+    const long nEndY = ImplLogicYToDevicePixel( nBottom );
+    long nHorzCount = 0;
+    long nVertCount = 0;
+
+    std::vector< sal_Int32 > aVertBuf;
+    std::vector< sal_Int32 > aHorzBuf;
+
+    if( ( nFlags & DrawGridFlags::Dots ) || ( nFlags & DrawGridFlags::HorzLines ) )
+    {
+        aVertBuf.resize( aDstRect.GetHeight() / nDistY + 2 );
+        aVertBuf[ nVertCount++ ] = nStartY;
+        while( ( nY += nDistY ) <= nBottom )
+        {
+            aVertBuf[ nVertCount++ ] = ImplLogicYToDevicePixel( nY );
+        }
+    }
+
+    if( ( nFlags & DrawGridFlags::Dots ) || ( nFlags & DrawGridFlags::VertLines ) )
+    {
+        aHorzBuf.resize( aDstRect.GetWidth() / nDistX + 2 );
+        aHorzBuf[ nHorzCount++ ] = nStartX;
+        while( ( nX += nDistX ) <= nRight )
+        {
+            aHorzBuf[ nHorzCount++ ] = ImplLogicXToDevicePixel( nX );
+        }
+    }
+
+    if( mbInitLineColor )
+        InitLineColor();
+
+    if( mbInitFillColor )
+        InitFillColor();
+
+    const bool bOldMap = mbMap;
+    EnableMapMode( false );
+
+    if( nFlags & DrawGridFlags::Dots )
+    {
+        for( long i = 0; i < nVertCount; i++ )
+        {
+            for( long j = 0, Y = aVertBuf[ i ]; j < nHorzCount; j++ )
+            {
+                mpGraphics->DrawPixel( aHorzBuf[ j ], Y, this );
+            }
+        }
+    }
+    else
+    {
+        if( nFlags & DrawGridFlags::HorzLines )
+        {
+            for( long i = 0; i < nVertCount; i++ )
+            {
+                nY = aVertBuf[ i ];
+                mpGraphics->DrawLine( nStartX, nY, nEndX, nY, this );
+            }
+        }
+
+        if( nFlags & DrawGridFlags::VertLines )
+        {
+            for( long i = 0; i < nHorzCount; i++ )
+            {
+                nX = aHorzBuf[ i ];
+                mpGraphics->DrawLine( nX, nStartY, nX, nEndY, this );
+            }
+        }
+    }
+
+    EnableMapMode( bOldMap );
+
+    if( mpAlphaVDev )
+        mpAlphaVDev->DrawGrid( rRect, rDist, nFlags );
+}
+
+BmpMirrorFlags AdjustTwoRect( SalTwoRect& rTwoRect, const Size& rSizePix )
+{
+    BmpMirrorFlags nMirrFlags = BmpMirrorFlags::NONE;
+
+    if ( rTwoRect.mnDestWidth < 0 )
+    {
+        rTwoRect.mnSrcX = rSizePix.Width() - rTwoRect.mnSrcX - rTwoRect.mnSrcWidth;
+        rTwoRect.mnDestWidth = -rTwoRect.mnDestWidth;
+        rTwoRect.mnDestX -= rTwoRect.mnDestWidth-1;
+        nMirrFlags |= BmpMirrorFlags::Horizontal;
+    }
+
+    if ( rTwoRect.mnDestHeight < 0 )
+    {
+        rTwoRect.mnSrcY = rSizePix.Height() - rTwoRect.mnSrcY - rTwoRect.mnSrcHeight;
+        rTwoRect.mnDestHeight = -rTwoRect.mnDestHeight;
+        rTwoRect.mnDestY -= rTwoRect.mnDestHeight-1;
+        nMirrFlags |= BmpMirrorFlags::Vertical;
+    }
+
+    if( ( rTwoRect.mnSrcX < 0 ) || ( rTwoRect.mnSrcX >= rSizePix.Width() ) ||
+        ( rTwoRect.mnSrcY < 0 ) || ( rTwoRect.mnSrcY >= rSizePix.Height() ) ||
+        ( ( rTwoRect.mnSrcX + rTwoRect.mnSrcWidth ) > rSizePix.Width() ) ||
+        ( ( rTwoRect.mnSrcY + rTwoRect.mnSrcHeight ) > rSizePix.Height() ) )
+    {
+        const tools::Rectangle aSourceRect( Point( rTwoRect.mnSrcX, rTwoRect.mnSrcY ),
+                                     Size( rTwoRect.mnSrcWidth, rTwoRect.mnSrcHeight ) );
+        tools::Rectangle aCropRect( aSourceRect );
+
+        aCropRect.Intersection( tools::Rectangle( Point(), rSizePix ) );
+
+        if( aCropRect.IsEmpty() )
+        {
+            rTwoRect.mnSrcWidth = rTwoRect.mnSrcHeight = rTwoRect.mnDestWidth = rTwoRect.mnDestHeight = 0;
+        }
+        else
+        {
+            const double fFactorX = ( rTwoRect.mnSrcWidth > 1 ) ? static_cast<double>( rTwoRect.mnDestWidth - 1 ) / ( rTwoRect.mnSrcWidth - 1 ) : 0.0;
+            const double fFactorY = ( rTwoRect.mnSrcHeight > 1 ) ? static_cast<double>( rTwoRect.mnDestHeight - 1 ) / ( rTwoRect.mnSrcHeight - 1 ) : 0.0;
+
+            const long nDstX1 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Left() - rTwoRect.mnSrcX ) );
+            const long nDstY1 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Top() - rTwoRect.mnSrcY ) );
+            const long nDstX2 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Right() - rTwoRect.mnSrcX ) );
+            const long nDstY2 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Bottom() - rTwoRect.mnSrcY ) );
+
+            rTwoRect.mnSrcX = aCropRect.Left();
+            rTwoRect.mnSrcY = aCropRect.Top();
+            rTwoRect.mnSrcWidth = aCropRect.GetWidth();
+            rTwoRect.mnSrcHeight = aCropRect.GetHeight();
+            rTwoRect.mnDestX = nDstX1;
+            rTwoRect.mnDestY = nDstY1;
+            rTwoRect.mnDestWidth = nDstX2 - nDstX1 + 1;
+            rTwoRect.mnDestHeight = nDstY2 - nDstY1 + 1;
+        }
+    }
+
+    return nMirrFlags;
+}
+
+void AdjustTwoRect( SalTwoRect& rTwoRect, const tools::Rectangle& rValidSrcRect )
+{
+    if( ( rTwoRect.mnSrcX < rValidSrcRect.Left() ) || ( rTwoRect.mnSrcX >= rValidSrcRect.Right() ) ||
+        ( rTwoRect.mnSrcY < rValidSrcRect.Top() ) || ( rTwoRect.mnSrcY >= rValidSrcRect.Bottom() ) ||
+        ( ( rTwoRect.mnSrcX + rTwoRect.mnSrcWidth ) > rValidSrcRect.Right() ) ||
+        ( ( rTwoRect.mnSrcY + rTwoRect.mnSrcHeight ) > rValidSrcRect.Bottom() ) )
+    {
+        const tools::Rectangle aSourceRect( Point( rTwoRect.mnSrcX, rTwoRect.mnSrcY ),
+                                     Size( rTwoRect.mnSrcWidth, rTwoRect.mnSrcHeight ) );
+        tools::Rectangle aCropRect( aSourceRect );
+
+        aCropRect.Intersection( rValidSrcRect );
+
+        if( aCropRect.IsEmpty() )
+        {
+            rTwoRect.mnSrcWidth = rTwoRect.mnSrcHeight = rTwoRect.mnDestWidth = rTwoRect.mnDestHeight = 0;
+        }
+        else
+        {
+            const double fFactorX = ( rTwoRect.mnSrcWidth > 1 ) ? static_cast<double>( rTwoRect.mnDestWidth - 1 ) / ( rTwoRect.mnSrcWidth - 1 ) : 0.0;
+            const double fFactorY = ( rTwoRect.mnSrcHeight > 1 ) ? static_cast<double>( rTwoRect.mnDestHeight - 1 ) / ( rTwoRect.mnSrcHeight - 1 ) : 0.0;
+
+            const long nDstX1 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Left() - rTwoRect.mnSrcX ) );
+            const long nDstY1 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Top() - rTwoRect.mnSrcY ) );
+            const long nDstX2 = rTwoRect.mnDestX + FRound( fFactorX * ( aCropRect.Right() - rTwoRect.mnSrcX ) );
+            const long nDstY2 = rTwoRect.mnDestY + FRound( fFactorY * ( aCropRect.Bottom() - rTwoRect.mnSrcY ) );
+
+            rTwoRect.mnSrcX = aCropRect.Left();
+            rTwoRect.mnSrcY = aCropRect.Top();
+            rTwoRect.mnSrcWidth = aCropRect.GetWidth();
+            rTwoRect.mnSrcHeight = aCropRect.GetHeight();
+            rTwoRect.mnDestX = nDstX1;
+            rTwoRect.mnDestY = nDstY1;
+            rTwoRect.mnDestWidth = nDstX2 - nDstX1 + 1;
+            rTwoRect.mnDestHeight = nDstY2 - nDstY1 + 1;
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */