summaryrefslogtreecommitdiffstats
path: root/vcl/source/outdev/transparent.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--vcl/source/outdev/transparent.cxx1914
1 files changed, 1914 insertions, 0 deletions
diff --git a/vcl/source/outdev/transparent.cxx b/vcl/source/outdev/transparent.cxx
new file mode 100644
index 000000000..f747c0479
--- /dev/null
+++ b/vcl/source/outdev/transparent.cxx
@@ -0,0 +1,1914 @@
+/* -*- 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/types.h>
+#include <osl/diagnose.h>
+#include <rtl/math.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <tools/helpers.hxx>
+#include <officecfg/Office/Common.hxx>
+
+#include <vcl/BitmapTools.hxx>
+#include <vcl/metaact.hxx>
+#include <vcl/print.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/virdev.hxx>
+
+#include <bitmap/BitmapWriteAccess.hxx>
+#include <pdf/pdfwriter_impl.hxx>
+#include <salgdi.hxx>
+
+#include <list>
+#include <memory>
+
+#define MAX_TILE_WIDTH 1024
+#define MAX_TILE_HEIGHT 1024
+
+namespace
+{
+ /**
+ * Perform a safe approximation of a polygon from double-precision
+ * coordinates to integer coordinates, to ensure that it has at least 2
+ * pixels in both X and Y directions.
+ */
+ tools::Polygon toPolygon( const basegfx::B2DPolygon& rPoly )
+ {
+ basegfx::B2DRange aRange = rPoly.getB2DRange();
+ double fW = aRange.getWidth(), fH = aRange.getHeight();
+ if (0.0 < fW && 0.0 < fH && (fW <= 1.0 || fH <= 1.0))
+ {
+ // This polygon not empty but is too small to display. Approximate it
+ // with a rectangle large enough to be displayed.
+ double nX = aRange.getMinX(), nY = aRange.getMinY();
+ double nW = std::max<double>(1.0, rtl::math::round(fW));
+ double nH = std::max<double>(1.0, rtl::math::round(fH));
+
+ tools::Polygon aTarget;
+ aTarget.Insert(0, Point(nX, nY));
+ aTarget.Insert(1, Point(nX+nW, nY));
+ aTarget.Insert(2, Point(nX+nW, nY+nH));
+ aTarget.Insert(3, Point(nX, nY+nH));
+ aTarget.Insert(4, Point(nX, nY));
+ return aTarget;
+ }
+ return tools::Polygon(rPoly);
+ }
+
+ tools::PolyPolygon toPolyPolygon( const basegfx::B2DPolyPolygon& rPolyPoly )
+ {
+ tools::PolyPolygon aTarget;
+ for (auto const& rB2DPolygon : rPolyPoly)
+ aTarget.Insert(toPolygon(rB2DPolygon));
+
+ return aTarget;
+ }
+}
+
+// Caution: This method is nearly the same as
+// void OutputDevice::DrawPolyPolygon( const basegfx::B2DPolyPolygon& rB2DPolyPoly )
+// so when changes are made here do not forget to make changes there, too
+
+void OutputDevice::DrawTransparent(
+ const basegfx::B2DHomMatrix& rObjectTransform,
+ const basegfx::B2DPolyPolygon& rB2DPolyPoly,
+ double fTransparency)
+{
+ assert(!is_double_buffered_window());
+
+ // AW: Do NOT paint empty PolyPolygons
+ if(!rB2DPolyPoly.count())
+ return;
+
+ // we need a graphics
+ if( !mpGraphics && !AcquireGraphics() )
+ return;
+ assert(mpGraphics);
+
+ if( mbInitClipRegion )
+ InitClipRegion();
+
+ if( mbOutputClipped )
+ return;
+
+ if( mbInitLineColor )
+ InitLineColor();
+
+ if( mbInitFillColor )
+ InitFillColor();
+
+ if(mpGraphics->supportsOperation(OutDevSupportType::B2DDraw) &&
+ (RasterOp::OverPaint == GetRasterOp()) )
+ {
+ // b2dpolygon support not implemented yet on non-UNX platforms
+ basegfx::B2DPolyPolygon aB2DPolyPolygon(rB2DPolyPoly);
+
+ // ensure it is closed
+ if(!aB2DPolyPolygon.isClosed())
+ {
+ // maybe assert, prevents buffering due to making a copy
+ aB2DPolyPolygon.setClosed( true );
+ }
+
+ // create ObjectToDevice transformation
+ const basegfx::B2DHomMatrix aFullTransform(ImplGetDeviceTransformation() * rObjectTransform);
+ // TODO: this must not drop transparency for mpAlphaVDev case, but instead use premultiplied
+ // alpha... but that requires using premultiplied alpha also for already drawn data
+ const double fAdjustedTransparency = mpAlphaVDev ? 0 : fTransparency;
+ bool bDrawnOk(true);
+
+ if( IsFillColor() )
+ {
+ bDrawnOk = mpGraphics->DrawPolyPolygon(
+ aFullTransform,
+ aB2DPolyPolygon,
+ fAdjustedTransparency,
+ *this);
+ }
+
+ if( bDrawnOk && IsLineColor() )
+ {
+ const bool bPixelSnapHairline(mnAntialiasing & AntialiasingFlags::PixelSnapHairline);
+
+ for(auto const& rPolygon : std::as_const(aB2DPolyPolygon))
+ {
+ mpGraphics->DrawPolyLine(
+ aFullTransform,
+ rPolygon,
+ fAdjustedTransparency,
+ 0.0, // tdf#124848 hairline
+ nullptr, // MM01
+ basegfx::B2DLineJoin::NONE,
+ css::drawing::LineCap_BUTT,
+ basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
+ bPixelSnapHairline,
+ *this );
+ }
+ }
+
+ if( bDrawnOk )
+ {
+ if( mpMetaFile )
+ {
+ // tdf#119843 need transformed Polygon here
+ basegfx::B2DPolyPolygon aB2DPolyPoly(rB2DPolyPoly);
+ aB2DPolyPoly.transform(rObjectTransform);
+ mpMetaFile->AddAction(
+ new MetaTransparentAction(
+ tools::PolyPolygon(aB2DPolyPoly),
+ static_cast< sal_uInt16 >(fTransparency * 100.0)));
+ }
+
+ if (mpAlphaVDev)
+ mpAlphaVDev->DrawTransparent(rObjectTransform, rB2DPolyPoly, fTransparency);
+
+ return;
+ }
+ }
+
+ // fallback to old polygon drawing if needed
+ // tdf#119843 need transformed Polygon here
+ basegfx::B2DPolyPolygon aB2DPolyPoly(rB2DPolyPoly);
+ aB2DPolyPoly.transform(rObjectTransform);
+ DrawTransparent(
+ toPolyPolygon(aB2DPolyPoly),
+ static_cast<sal_uInt16>(fTransparency * 100.0));
+}
+
+bool OutputDevice::DrawTransparentNatively ( const tools::PolyPolygon& rPolyPoly,
+ sal_uInt16 nTransparencePercent )
+{
+ assert(!is_double_buffered_window());
+
+ bool bDrawn = false;
+
+ if (mpGraphics->supportsOperation(OutDevSupportType::B2DDraw)
+#if defined UNX && ! defined MACOSX && ! defined IOS
+ && GetBitCount() > 8
+#endif
+#ifdef _WIN32
+ // workaround bad dithering on remote displaying when using GDI+ with toolbar button highlighting
+ && !rPolyPoly.IsRect()
+#endif
+ )
+ {
+ // prepare the graphics device
+ if( mbInitClipRegion )
+ InitClipRegion();
+
+ if( mbOutputClipped )
+ return false;
+
+ if( mbInitLineColor )
+ InitLineColor();
+
+ if( mbInitFillColor )
+ InitFillColor();
+
+ // get the polygon in device coordinates
+ basegfx::B2DPolyPolygon aB2DPolyPolygon(rPolyPoly.getB2DPolyPolygon());
+ const basegfx::B2DHomMatrix aTransform(ImplGetDeviceTransformation());
+
+ const double fTransparency = 0.01 * nTransparencePercent;
+ if( mbFillColor )
+ {
+ // #i121591#
+ // CAUTION: Only non printing (pixel-renderer) VCL commands from OutputDevices
+ // should be used when printing. Normally this is avoided by the printer being
+ // non-AAed and thus e.g. on WIN GdiPlus calls are not used. It may be necessary
+ // to figure out a way of moving this code to its own function that is
+ // overridden by the Print class, which will mean we deliberately override the
+ // functionality and we use the fallback some lines below (which is not very good,
+ // though. For now, WinSalGraphics::drawPolyPolygon will detect printer usage and
+ // correct the wrong mapping (see there for details)
+ bDrawn = mpGraphics->DrawPolyPolygon(
+ aTransform,
+ aB2DPolyPolygon,
+ fTransparency,
+ *this);
+ }
+
+ if( mbLineColor )
+ {
+ // disable the fill color for now
+ mpGraphics->SetFillColor();
+
+ // draw the border line
+ const bool bPixelSnapHairline(mnAntialiasing & AntialiasingFlags::PixelSnapHairline);
+
+ for(auto const& rPolygon : std::as_const(aB2DPolyPolygon))
+ {
+ bDrawn = mpGraphics->DrawPolyLine(
+ aTransform,
+ rPolygon,
+ fTransparency,
+ 0.0, // tdf#124848 hairline
+ nullptr, // MM01
+ basegfx::B2DLineJoin::NONE,
+ css::drawing::LineCap_BUTT,
+ basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
+ bPixelSnapHairline,
+ *this );
+ }
+
+ // prepare to restore the fill color
+ mbInitFillColor = mbFillColor;
+ }
+ }
+
+ return bDrawn;
+}
+
+void OutputDevice::EmulateDrawTransparent ( const tools::PolyPolygon& rPolyPoly,
+ sal_uInt16 nTransparencePercent )
+{
+ // #110958# Disable alpha VDev, we perform the necessary
+ VirtualDevice* pOldAlphaVDev = mpAlphaVDev;
+
+ // operation explicitly further below.
+ if( mpAlphaVDev )
+ mpAlphaVDev = nullptr;
+
+ GDIMetaFile* pOldMetaFile = mpMetaFile;
+ mpMetaFile = nullptr;
+
+ tools::PolyPolygon aPolyPoly( LogicToPixel( rPolyPoly ) );
+ tools::Rectangle aPolyRect( aPolyPoly.GetBoundRect() );
+ tools::Rectangle aDstRect( Point(), GetOutputSizePixel() );
+
+ aDstRect.Intersection( aPolyRect );
+
+ ClipToPaintRegion( aDstRect );
+
+ if( !aDstRect.IsEmpty() )
+ {
+ bool bDrawn = false;
+
+ // #i66849# Added fast path for exactly rectangular
+ // polygons
+ // #i83087# Naturally, system alpha blending cannot
+ // work with separate alpha VDev
+ if( !mpAlphaVDev && aPolyPoly.IsRect() )
+ {
+ // setup Graphics only here (other cases delegate
+ // to basic OutDev methods)
+ if ( mbInitClipRegion )
+ InitClipRegion();
+
+ if ( mbInitLineColor )
+ InitLineColor();
+
+ if ( mbInitFillColor )
+ InitFillColor();
+
+ tools::Rectangle aLogicPolyRect( rPolyPoly.GetBoundRect() );
+ tools::Rectangle aPixelRect( ImplLogicToDevicePixel( aLogicPolyRect ) );
+
+ if( !mbOutputClipped )
+ {
+ bDrawn = mpGraphics->DrawAlphaRect( aPixelRect.Left(), aPixelRect.Top(),
+ // #i98405# use methods with small g, else one pixel too much will be painted.
+ // This is because the source is a polygon which when painted would not paint
+ // the rightmost and lowest pixel line(s), so use one pixel less for the
+ // rectangle, too.
+ aPixelRect.getWidth(), aPixelRect.getHeight(),
+ sal::static_int_cast<sal_uInt8>(nTransparencePercent),
+ *this );
+ }
+ else
+ {
+ bDrawn = true;
+ }
+ }
+
+ if( !bDrawn )
+ {
+ ScopedVclPtrInstance< VirtualDevice > aVDev(*this);
+ const Size aDstSz( aDstRect.GetSize() );
+ const sal_uInt8 cTrans = static_cast<sal_uInt8>(MinMax( FRound( nTransparencePercent * 2.55 ), 0, 255 ));
+
+ if( aDstRect.Left() || aDstRect.Top() )
+ aPolyPoly.Move( -aDstRect.Left(), -aDstRect.Top() );
+
+ if( aVDev->SetOutputSizePixel( aDstSz ) )
+ {
+ const bool bOldMap = mbMap;
+
+ EnableMapMode( false );
+
+ aVDev->SetLineColor( COL_BLACK );
+ aVDev->SetFillColor( COL_BLACK );
+ aVDev->DrawPolyPolygon( aPolyPoly );
+
+ Bitmap aPaint( GetBitmap( aDstRect.TopLeft(), aDstSz ) );
+ Bitmap aPolyMask( aVDev->GetBitmap( Point(), aDstSz ) );
+
+ // #107766# check for non-empty bitmaps before accessing them
+ if( !aPaint.IsEmpty() && !aPolyMask.IsEmpty() )
+ {
+ BitmapScopedWriteAccess pW(aPaint);
+ Bitmap::ScopedReadAccess pR(aPolyMask);
+
+ if( pW && pR )
+ {
+ BitmapColor aPixCol;
+ const BitmapColor aFillCol( GetFillColor() );
+ const BitmapColor aBlack( pR->GetBestMatchingColor( COL_BLACK ) );
+ const tools::Long nWidth = pW->Width();
+ const tools::Long nHeight = pW->Height();
+ const tools::Long nR = aFillCol.GetRed();
+ const tools::Long nG = aFillCol.GetGreen();
+ const tools::Long nB = aFillCol.GetBlue();
+ tools::Long nX, nY;
+
+ if (vcl::isPalettePixelFormat(aPaint.getPixelFormat()))
+ {
+ const BitmapPalette& rPal = pW->GetPalette();
+ const sal_uInt16 nCount = rPal.GetEntryCount();
+ std::unique_ptr<sal_uInt8[]> xMap(new sal_uInt8[ nCount * sizeof( BitmapColor )]);
+ BitmapColor* pMap = reinterpret_cast<BitmapColor*>(xMap.get());
+
+ for( sal_uInt16 i = 0; i < nCount; i++ )
+ {
+ BitmapColor aCol( rPal[ i ] );
+ aCol.Merge( aFillCol, cTrans );
+ pMap[ i ] = BitmapColor( static_cast<sal_uInt8>(rPal.GetBestIndex( aCol )) );
+ }
+
+ if( pR->GetScanlineFormat() == ScanlineFormat::N1BitMsbPal &&
+ pW->GetScanlineFormat() == ScanlineFormat::N8BitPal )
+ {
+ const sal_uInt8 cBlack = aBlack.GetIndex();
+
+ for( nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pWScan = pW->GetScanline( nY );
+ Scanline pRScan = pR->GetScanline( nY );
+ sal_uInt8 cBit = 128;
+
+ for( nX = 0; nX < nWidth; nX++, cBit >>= 1, pWScan++ )
+ {
+ if( !cBit )
+ {
+ cBit = 128;
+ pRScan += 1;
+ }
+ if( ( *pRScan & cBit ) == cBlack )
+ {
+ *pWScan = pMap[ *pWScan ].GetIndex();
+ }
+ }
+ }
+ }
+ else
+ {
+ for( nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pScanline = pW->GetScanline(nY);
+ Scanline pScanlineRead = pR->GetScanline(nY);
+ for( nX = 0; nX < nWidth; nX++ )
+ {
+ if( pR->GetPixelFromData( pScanlineRead, nX ) == aBlack )
+ {
+ pW->SetPixelOnData( pScanline, nX, pMap[ pW->GetIndexFromData( pScanline, nX ) ] );
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ if( pR->GetScanlineFormat() == ScanlineFormat::N1BitMsbPal &&
+ pW->GetScanlineFormat() == ScanlineFormat::N24BitTcBgr )
+ {
+ const sal_uInt8 cBlack = aBlack.GetIndex();
+
+ for( nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pWScan = pW->GetScanline( nY );
+ Scanline pRScan = pR->GetScanline( nY );
+ sal_uInt8 cBit = 128;
+
+ for( nX = 0; nX < nWidth; nX++, cBit >>= 1, pWScan += 3 )
+ {
+ if( !cBit )
+ {
+ cBit = 128;
+ pRScan += 1;
+ }
+ if( ( *pRScan & cBit ) == cBlack )
+ {
+ pWScan[ 0 ] = color::ColorChannelMerge( pWScan[ 0 ], nB, cTrans );
+ pWScan[ 1 ] = color::ColorChannelMerge( pWScan[ 1 ], nG, cTrans );
+ pWScan[ 2 ] = color::ColorChannelMerge( pWScan[ 2 ], nR, cTrans );
+ }
+ }
+ }
+ }
+ else
+ {
+ for( nY = 0; nY < nHeight; nY++ )
+ {
+ Scanline pScanline = pW->GetScanline(nY);
+ Scanline pScanlineRead = pR->GetScanline(nY);
+ for( nX = 0; nX < nWidth; nX++ )
+ {
+ if( pR->GetPixelFromData( pScanlineRead, nX ) == aBlack )
+ {
+ aPixCol = pW->GetColor( nY, nX );
+ aPixCol.Merge(aFillCol, cTrans);
+ pW->SetPixelOnData(pScanline, nX, aPixCol);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ pR.reset();
+ pW.reset();
+
+ DrawBitmap( aDstRect.TopLeft(), aPaint );
+
+ EnableMapMode( bOldMap );
+
+ if( mbLineColor )
+ {
+ Push( vcl::PushFlags::FILLCOLOR );
+ SetFillColor();
+ DrawPolyPolygon( rPolyPoly );
+ Pop();
+ }
+ }
+ }
+ else
+ {
+ DrawPolyPolygon( rPolyPoly );
+ }
+ }
+ }
+
+ mpMetaFile = pOldMetaFile;
+
+ // #110958# Restore disabled alpha VDev
+ mpAlphaVDev = pOldAlphaVDev;
+}
+
+void OutputDevice::DrawTransparent( const tools::PolyPolygon& rPolyPoly,
+ sal_uInt16 nTransparencePercent )
+{
+ assert(!is_double_buffered_window());
+
+ // short circuit for drawing an opaque polygon
+ if( (nTransparencePercent < 1) || (mnDrawMode & DrawModeFlags::NoTransparency) )
+ {
+ DrawPolyPolygon( rPolyPoly );
+ return;
+ }
+
+ // short circuit for drawing an invisible polygon
+ if( (!mbFillColor && !mbLineColor) || (nTransparencePercent >= 100) )
+ return; // tdf#84294: do not record it in metafile
+
+ // handle metafile recording
+ if( mpMetaFile )
+ mpMetaFile->AddAction( new MetaTransparentAction( rPolyPoly, nTransparencePercent ) );
+
+ bool bDrawn = !IsDeviceOutputNecessary() || ImplIsRecordLayout();
+ if( bDrawn )
+ return;
+
+ // get the device graphics as drawing target
+ if( !mpGraphics && !AcquireGraphics() )
+ return;
+ assert(mpGraphics);
+
+ // try hard to draw it directly, because the emulation layers are slower
+ bDrawn = DrawTransparentNatively( rPolyPoly, nTransparencePercent );
+
+ if (!bDrawn)
+ EmulateDrawTransparent( rPolyPoly, nTransparencePercent );
+
+ // #110958# Apply alpha value also to VDev alpha channel
+ if( mpAlphaVDev )
+ {
+ const Color aFillCol( mpAlphaVDev->GetFillColor() );
+ mpAlphaVDev->SetFillColor( Color(sal::static_int_cast<sal_uInt8>(255*nTransparencePercent/100),
+ sal::static_int_cast<sal_uInt8>(255*nTransparencePercent/100),
+ sal::static_int_cast<sal_uInt8>(255*nTransparencePercent/100)) );
+
+ mpAlphaVDev->DrawTransparent( rPolyPoly, nTransparencePercent );
+
+ mpAlphaVDev->SetFillColor( aFillCol );
+ }
+}
+
+void OutputDevice::DrawTransparent( const GDIMetaFile& rMtf, const Point& rPos,
+ const Size& rSize, const Gradient& rTransparenceGradient )
+{
+ assert(!is_double_buffered_window());
+
+ const Color aBlack( COL_BLACK );
+
+ if( mpMetaFile )
+ {
+ // missing here is to map the data using the DeviceTransformation
+ mpMetaFile->AddAction( new MetaFloatTransparentAction( rMtf, rPos, rSize, rTransparenceGradient ) );
+ }
+
+ if ( !IsDeviceOutputNecessary() )
+ return;
+
+ if( ( rTransparenceGradient.GetStartColor() == aBlack && rTransparenceGradient.GetEndColor() == aBlack ) ||
+ ( mnDrawMode & DrawModeFlags::NoTransparency ) )
+ {
+ const_cast<GDIMetaFile&>(rMtf).WindStart();
+ const_cast<GDIMetaFile&>(rMtf).Play(*this, rPos, rSize);
+ const_cast<GDIMetaFile&>(rMtf).WindStart();
+ }
+ else
+ {
+ GDIMetaFile* pOldMetaFile = mpMetaFile;
+ tools::Rectangle aOutRect( LogicToPixel( rPos ), LogicToPixel( rSize ) );
+ Point aPoint;
+ tools::Rectangle aDstRect( aPoint, GetOutputSizePixel() );
+
+ mpMetaFile = nullptr;
+ aDstRect.Intersection( aOutRect );
+
+ ClipToPaintRegion( aDstRect );
+
+ if( !aDstRect.IsEmpty() )
+ {
+ // Create transparent buffer
+ ScopedVclPtrInstance<VirtualDevice> xVDev(DeviceFormat::DEFAULT, DeviceFormat::DEFAULT);
+
+ xVDev->mnDPIX = mnDPIX;
+ xVDev->mnDPIY = mnDPIY;
+
+ if( xVDev->SetOutputSizePixel( aDstRect.GetSize() ) )
+ {
+ if(GetAntialiasing() != AntialiasingFlags::NONE)
+ {
+ // #i102109#
+ // For MetaFile replay (see task) it may now be necessary to take
+ // into account that the content is AntiAlialiased and needs to be masked
+ // like that. Instead of masking, i will use a copy-modify-paste cycle
+ // here (as i already use in the VclPrimiziveRenderer with success)
+ xVDev->SetAntialiasing(GetAntialiasing());
+
+ // create MapMode for buffer (offset needed) and set
+ MapMode aMap(GetMapMode());
+ const Point aOutPos(PixelToLogic(aDstRect.TopLeft()));
+ aMap.SetOrigin(Point(-aOutPos.X(), -aOutPos.Y()));
+ xVDev->SetMapMode(aMap);
+
+ // copy MapMode state and disable for target
+ const bool bOrigMapModeEnabled(IsMapModeEnabled());
+ EnableMapMode(false);
+
+ // copy MapMode state and disable for buffer
+ const bool bBufferMapModeEnabled(xVDev->IsMapModeEnabled());
+ xVDev->EnableMapMode(false);
+
+ // copy content from original to buffer
+ xVDev->DrawOutDev( aPoint, xVDev->GetOutputSizePixel(), // dest
+ aDstRect.TopLeft(), xVDev->GetOutputSizePixel(), // source
+ *this);
+
+ // draw MetaFile to buffer
+ xVDev->EnableMapMode(bBufferMapModeEnabled);
+ const_cast<GDIMetaFile&>(rMtf).WindStart();
+ const_cast<GDIMetaFile&>(rMtf).Play(*xVDev, rPos, rSize);
+ const_cast<GDIMetaFile&>(rMtf).WindStart();
+
+ // get content bitmap from buffer
+ xVDev->EnableMapMode(false);
+
+ const Bitmap aPaint(xVDev->GetBitmap(aPoint, xVDev->GetOutputSizePixel()));
+
+ // create alpha mask from gradient and get as Bitmap
+ xVDev->EnableMapMode(bBufferMapModeEnabled);
+ xVDev->SetDrawMode(DrawModeFlags::GrayGradient);
+ xVDev->DrawGradient(tools::Rectangle(rPos, rSize), rTransparenceGradient);
+ xVDev->SetDrawMode(DrawModeFlags::Default);
+ xVDev->EnableMapMode(false);
+
+ const AlphaMask aAlpha(xVDev->GetBitmap(aPoint, xVDev->GetOutputSizePixel()));
+
+ xVDev.disposeAndClear();
+
+ // draw masked content to target and restore MapMode
+ DrawBitmapEx(aDstRect.TopLeft(), BitmapEx(aPaint, aAlpha));
+ EnableMapMode(bOrigMapModeEnabled);
+ }
+ else
+ {
+ MapMode aMap( GetMapMode() );
+ Point aOutPos( PixelToLogic( aDstRect.TopLeft() ) );
+ const bool bOldMap = mbMap;
+
+ aMap.SetOrigin( Point( -aOutPos.X(), -aOutPos.Y() ) );
+ xVDev->SetMapMode( aMap );
+ const bool bVDevOldMap = xVDev->IsMapModeEnabled();
+
+ // create paint bitmap
+ const_cast<GDIMetaFile&>(rMtf).WindStart();
+ const_cast<GDIMetaFile&>(rMtf).Play(*xVDev, rPos, rSize);
+ const_cast<GDIMetaFile&>(rMtf).WindStart();
+ xVDev->EnableMapMode( false );
+ BitmapEx aPaint = xVDev->GetBitmapEx(Point(), xVDev->GetOutputSizePixel());
+ xVDev->EnableMapMode( bVDevOldMap ); // #i35331#: MUST NOT use EnableMapMode( sal_True ) here!
+
+ // create alpha mask from gradient
+ xVDev->SetDrawMode( DrawModeFlags::GrayGradient );
+ xVDev->DrawGradient( tools::Rectangle( rPos, rSize ), rTransparenceGradient );
+ xVDev->SetDrawMode( DrawModeFlags::Default );
+ xVDev->EnableMapMode( false );
+
+ AlphaMask aAlpha(xVDev->GetBitmap(Point(), xVDev->GetOutputSizePixel()));
+ aAlpha.BlendWith(aPaint.GetAlpha());
+
+ xVDev.disposeAndClear();
+
+ EnableMapMode( false );
+ DrawBitmapEx(aDstRect.TopLeft(), BitmapEx(aPaint.GetBitmap(), aAlpha));
+ EnableMapMode( bOldMap );
+ }
+ }
+ }
+
+ mpMetaFile = pOldMetaFile;
+ }
+}
+
+typedef ::std::pair< MetaAction*, int > Component; // MetaAction plus index in metafile
+
+namespace {
+
+// List of (intersecting) actions, plus overall bounds
+struct ConnectedComponents
+{
+ ConnectedComponents() :
+ aComponentList(),
+ aBounds(),
+ aBgColor(COL_WHITE),
+ bIsSpecial(false),
+ bIsFullyTransparent(false)
+ {}
+
+ ::std::list< Component > aComponentList;
+ tools::Rectangle aBounds;
+ Color aBgColor;
+ bool bIsSpecial;
+ bool bIsFullyTransparent;
+};
+
+}
+
+namespace {
+
+/** Determines whether the action can handle transparency correctly
+ (i.e. when painted on white background, does the action still look
+ correct)?
+ */
+bool DoesActionHandleTransparency( const MetaAction& rAct )
+{
+ // MetaActionType::FLOATTRANSPARENT can contain a whole metafile,
+ // which is to be rendered with the given transparent gradient. We
+ // currently cannot emulate transparent painting on a white
+ // background reliably.
+
+ // the remainder can handle printing itself correctly on a uniform
+ // white background.
+ switch( rAct.GetType() )
+ {
+ case MetaActionType::Transparent:
+ case MetaActionType::BMPEX:
+ case MetaActionType::BMPEXSCALE:
+ case MetaActionType::BMPEXSCALEPART:
+ return true;
+
+ default:
+ return false;
+ }
+}
+
+bool doesRectCoverWithUniformColor(
+ tools::Rectangle const & rPrevRect,
+ tools::Rectangle const & rCurrRect,
+ OutputDevice const & rMapModeVDev)
+{
+ // shape needs to fully cover previous content, and have uniform
+ // color
+ return (rMapModeVDev.LogicToPixel(rCurrRect).Contains(rPrevRect) &&
+ rMapModeVDev.IsFillColor());
+}
+
+/** Check whether rCurrRect rectangle fully covers io_rPrevRect - if
+ yes, return true and update o_rBgColor
+ */
+bool checkRect( tools::Rectangle& io_rPrevRect,
+ Color& o_rBgColor,
+ const tools::Rectangle& rCurrRect,
+ OutputDevice const & rMapModeVDev )
+{
+ bool bRet = doesRectCoverWithUniformColor(io_rPrevRect, rCurrRect, rMapModeVDev);
+
+ if( bRet )
+ {
+ io_rPrevRect = rCurrRect;
+ o_rBgColor = rMapModeVDev.GetFillColor();
+ }
+
+ return bRet;
+}
+
+/** #107169# Convert BitmapEx to Bitmap with appropriately blended
+ color. Convert MetaTransparentAction to plain polygon,
+ appropriately colored
+
+ @param o_rMtf
+ Add converted actions to this metafile
+*/
+void ImplConvertTransparentAction( GDIMetaFile& o_rMtf,
+ const MetaAction& rAct,
+ const OutputDevice& rStateOutDev,
+ Color aBgColor )
+{
+ if (rAct.GetType() == MetaActionType::Transparent)
+ {
+ const MetaTransparentAction* pTransAct = static_cast<const MetaTransparentAction*>(&rAct);
+ sal_uInt16 nTransparency( pTransAct->GetTransparence() );
+
+ // #i10613# Respect transparency for draw color
+ if (nTransparency)
+ {
+ o_rMtf.AddAction(new MetaPushAction(vcl::PushFlags::LINECOLOR|vcl::PushFlags::FILLCOLOR));
+
+ // assume white background for alpha blending
+ Color aLineColor(rStateOutDev.GetLineColor());
+ aLineColor.SetRed(static_cast<sal_uInt8>((255*nTransparency + (100 - nTransparency) * aLineColor.GetRed()) / 100));
+ aLineColor.SetGreen(static_cast<sal_uInt8>((255*nTransparency + (100 - nTransparency) * aLineColor.GetGreen()) / 100));
+ aLineColor.SetBlue(static_cast<sal_uInt8>((255*nTransparency + (100 - nTransparency) * aLineColor.GetBlue()) / 100));
+ o_rMtf.AddAction(new MetaLineColorAction(aLineColor, true));
+
+ Color aFillColor(rStateOutDev.GetFillColor());
+ aFillColor.SetRed(static_cast<sal_uInt8>((255*nTransparency + (100 - nTransparency)*aFillColor.GetRed()) / 100));
+ aFillColor.SetGreen(static_cast<sal_uInt8>((255*nTransparency + (100 - nTransparency)*aFillColor.GetGreen()) / 100));
+ aFillColor.SetBlue(static_cast<sal_uInt8>((255*nTransparency + (100 - nTransparency)*aFillColor.GetBlue()) / 100));
+ o_rMtf.AddAction(new MetaFillColorAction(aFillColor, true));
+ }
+
+ o_rMtf.AddAction(new MetaPolyPolygonAction(pTransAct->GetPolyPolygon()));
+
+ if(nTransparency)
+ o_rMtf.AddAction(new MetaPopAction());
+ }
+ else
+ {
+ BitmapEx aBmpEx;
+
+ switch (rAct.GetType())
+ {
+ case MetaActionType::BMPEX:
+ aBmpEx = static_cast<const MetaBmpExAction&>(rAct).GetBitmapEx();
+ break;
+
+ case MetaActionType::BMPEXSCALE:
+ aBmpEx = static_cast<const MetaBmpExScaleAction&>(rAct).GetBitmapEx();
+ break;
+
+ case MetaActionType::BMPEXSCALEPART:
+ aBmpEx = static_cast<const MetaBmpExScaleAction&>(rAct).GetBitmapEx();
+ break;
+
+ case MetaActionType::Transparent:
+
+ default:
+ OSL_FAIL("Printer::GetPreparedMetafile impossible state reached");
+ break;
+ }
+
+ Bitmap aBmp(aBmpEx.GetBitmap());
+ if (aBmpEx.IsAlpha())
+ {
+ // blend with alpha channel
+ aBmp.Convert(BmpConversion::N24Bit);
+ aBmp.Blend(aBmpEx.GetAlpha(), aBgColor);
+ }
+
+ // add corresponding action
+ switch (rAct.GetType())
+ {
+ case MetaActionType::BMPEX:
+ o_rMtf.AddAction(new MetaBmpAction(
+ static_cast<const MetaBmpExAction&>(rAct).GetPoint(),
+ aBmp));
+ break;
+ case MetaActionType::BMPEXSCALE:
+ o_rMtf.AddAction(new MetaBmpScaleAction(
+ static_cast<const MetaBmpExScaleAction&>(rAct).GetPoint(),
+ static_cast<const MetaBmpExScaleAction&>(rAct).GetSize(),
+ aBmp));
+ break;
+ case MetaActionType::BMPEXSCALEPART:
+ o_rMtf.AddAction(new MetaBmpScalePartAction(
+ static_cast<const MetaBmpExScalePartAction&>(rAct).GetDestPoint(),
+ static_cast<const MetaBmpExScalePartAction&>(rAct).GetDestSize(),
+ static_cast<const MetaBmpExScalePartAction&>(rAct).GetSrcPoint(),
+ static_cast<const MetaBmpExScalePartAction&>(rAct).GetSrcSize(),
+ aBmp));
+ break;
+ default:
+ OSL_FAIL("Unexpected case");
+ break;
+ }
+ }
+}
+
+// #i10613# Extracted from ImplCheckRect::ImplCreate
+// Returns true, if given action creates visible (i.e. non-transparent) output
+bool ImplIsNotTransparent( const MetaAction& rAct, const OutputDevice& rOut )
+{
+ const bool bLineTransparency( !rOut.IsLineColor() || rOut.GetLineColor().IsFullyTransparent() );
+ const bool bFillTransparency( !rOut.IsFillColor() || rOut.GetFillColor().IsFullyTransparent() );
+ bool bRet( false );
+
+ switch( rAct.GetType() )
+ {
+ case MetaActionType::POINT:
+ if( !bLineTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::LINE:
+ if( !bLineTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::RECT:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::ROUNDRECT:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::ELLIPSE:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::ARC:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::PIE:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::CHORD:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::POLYLINE:
+ if( !bLineTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::POLYGON:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::POLYPOLYGON:
+ if( !bLineTransparency || !bFillTransparency )
+ bRet = true;
+ break;
+
+ case MetaActionType::TEXT:
+ {
+ const MetaTextAction& rTextAct = static_cast<const MetaTextAction&>(rAct);
+ const OUString aString( rTextAct.GetText().copy(rTextAct.GetIndex(), rTextAct.GetLen()) );
+ if (!aString.isEmpty())
+ bRet = true;
+ }
+ break;
+
+ case MetaActionType::TEXTARRAY:
+ {
+ const MetaTextArrayAction& rTextAct = static_cast<const MetaTextArrayAction&>(rAct);
+ const OUString aString( rTextAct.GetText().copy(rTextAct.GetIndex(), rTextAct.GetLen()) );
+ if (!aString.isEmpty())
+ bRet = true;
+ }
+ break;
+
+ case MetaActionType::PIXEL:
+ case MetaActionType::BMP:
+ case MetaActionType::BMPSCALE:
+ case MetaActionType::BMPSCALEPART:
+ case MetaActionType::BMPEX:
+ case MetaActionType::BMPEXSCALE:
+ case MetaActionType::BMPEXSCALEPART:
+ case MetaActionType::MASK:
+ case MetaActionType::MASKSCALE:
+ case MetaActionType::MASKSCALEPART:
+ case MetaActionType::GRADIENT:
+ case MetaActionType::GRADIENTEX:
+ case MetaActionType::HATCH:
+ case MetaActionType::WALLPAPER:
+ case MetaActionType::Transparent:
+ case MetaActionType::FLOATTRANSPARENT:
+ case MetaActionType::EPS:
+ case MetaActionType::TEXTRECT:
+ case MetaActionType::STRETCHTEXT:
+ case MetaActionType::TEXTLINE:
+ // all other actions: generate non-transparent output
+ bRet = true;
+ break;
+
+ default:
+ break;
+ }
+
+ return bRet;
+}
+
+// #i10613# Extracted from ImplCheckRect::ImplCreate
+tools::Rectangle ImplCalcActionBounds( const MetaAction& rAct, const OutputDevice& rOut )
+{
+ tools::Rectangle aActionBounds;
+
+ switch( rAct.GetType() )
+ {
+ case MetaActionType::PIXEL:
+ aActionBounds = tools::Rectangle( static_cast<const MetaPixelAction&>(rAct).GetPoint(), Size( 1, 1 ) );
+ break;
+
+ case MetaActionType::POINT:
+ aActionBounds = tools::Rectangle( static_cast<const MetaPointAction&>(rAct).GetPoint(), Size( 1, 1 ) );
+ break;
+
+ case MetaActionType::LINE:
+ {
+ const MetaLineAction& rMetaLineAction = static_cast<const MetaLineAction&>(rAct);
+ aActionBounds = tools::Rectangle( rMetaLineAction.GetStartPoint(), rMetaLineAction.GetEndPoint() );
+ aActionBounds.Justify();
+ const tools::Long nLineWidth(rMetaLineAction.GetLineInfo().GetWidth());
+ if(nLineWidth)
+ {
+ const tools::Long nHalfLineWidth((nLineWidth + 1) / 2);
+ aActionBounds.AdjustLeft( -nHalfLineWidth );
+ aActionBounds.AdjustTop( -nHalfLineWidth );
+ aActionBounds.AdjustRight(nHalfLineWidth );
+ aActionBounds.AdjustBottom(nHalfLineWidth );
+ }
+ break;
+ }
+
+ case MetaActionType::RECT:
+ aActionBounds = static_cast<const MetaRectAction&>(rAct).GetRect();
+ break;
+
+ case MetaActionType::ROUNDRECT:
+ aActionBounds = tools::Polygon( static_cast<const MetaRoundRectAction&>(rAct).GetRect(),
+ static_cast<const MetaRoundRectAction&>(rAct).GetHorzRound(),
+ static_cast<const MetaRoundRectAction&>(rAct).GetVertRound() ).GetBoundRect();
+ break;
+
+ case MetaActionType::ELLIPSE:
+ {
+ const tools::Rectangle& rRect = static_cast<const MetaEllipseAction&>(rAct).GetRect();
+ aActionBounds = tools::Polygon( rRect.Center(),
+ rRect.GetWidth() >> 1,
+ rRect.GetHeight() >> 1 ).GetBoundRect();
+ break;
+ }
+
+ case MetaActionType::ARC:
+ aActionBounds = tools::Polygon( static_cast<const MetaArcAction&>(rAct).GetRect(),
+ static_cast<const MetaArcAction&>(rAct).GetStartPoint(),
+ static_cast<const MetaArcAction&>(rAct).GetEndPoint(), PolyStyle::Arc ).GetBoundRect();
+ break;
+
+ case MetaActionType::PIE:
+ aActionBounds = tools::Polygon( static_cast<const MetaPieAction&>(rAct).GetRect(),
+ static_cast<const MetaPieAction&>(rAct).GetStartPoint(),
+ static_cast<const MetaPieAction&>(rAct).GetEndPoint(), PolyStyle::Pie ).GetBoundRect();
+ break;
+
+ case MetaActionType::CHORD:
+ aActionBounds = tools::Polygon( static_cast<const MetaChordAction&>(rAct).GetRect(),
+ static_cast<const MetaChordAction&>(rAct).GetStartPoint(),
+ static_cast<const MetaChordAction&>(rAct).GetEndPoint(), PolyStyle::Chord ).GetBoundRect();
+ break;
+
+ case MetaActionType::POLYLINE:
+ {
+ const MetaPolyLineAction& rMetaPolyLineAction = static_cast<const MetaPolyLineAction&>(rAct);
+ aActionBounds = rMetaPolyLineAction.GetPolygon().GetBoundRect();
+ const tools::Long nLineWidth(rMetaPolyLineAction.GetLineInfo().GetWidth());
+ if(nLineWidth)
+ {
+ const tools::Long nHalfLineWidth((nLineWidth + 1) / 2);
+ aActionBounds.AdjustLeft( -nHalfLineWidth );
+ aActionBounds.AdjustTop( -nHalfLineWidth );
+ aActionBounds.AdjustRight(nHalfLineWidth );
+ aActionBounds.AdjustBottom(nHalfLineWidth );
+ }
+ break;
+ }
+
+ case MetaActionType::POLYGON:
+ aActionBounds = static_cast<const MetaPolygonAction&>(rAct).GetPolygon().GetBoundRect();
+ break;
+
+ case MetaActionType::POLYPOLYGON:
+ aActionBounds = static_cast<const MetaPolyPolygonAction&>(rAct).GetPolyPolygon().GetBoundRect();
+ break;
+
+ case MetaActionType::BMP:
+ aActionBounds = tools::Rectangle( static_cast<const MetaBmpAction&>(rAct).GetPoint(),
+ rOut.PixelToLogic( static_cast<const MetaBmpAction&>(rAct).GetBitmap().GetSizePixel() ) );
+ break;
+
+ case MetaActionType::BMPSCALE:
+ aActionBounds = tools::Rectangle( static_cast<const MetaBmpScaleAction&>(rAct).GetPoint(),
+ static_cast<const MetaBmpScaleAction&>(rAct).GetSize() );
+ break;
+
+ case MetaActionType::BMPSCALEPART:
+ aActionBounds = tools::Rectangle( static_cast<const MetaBmpScalePartAction&>(rAct).GetDestPoint(),
+ static_cast<const MetaBmpScalePartAction&>(rAct).GetDestSize() );
+ break;
+
+ case MetaActionType::BMPEX:
+ aActionBounds = tools::Rectangle( static_cast<const MetaBmpExAction&>(rAct).GetPoint(),
+ rOut.PixelToLogic( static_cast<const MetaBmpExAction&>(rAct).GetBitmapEx().GetSizePixel() ) );
+ break;
+
+ case MetaActionType::BMPEXSCALE:
+ aActionBounds = tools::Rectangle( static_cast<const MetaBmpExScaleAction&>(rAct).GetPoint(),
+ static_cast<const MetaBmpExScaleAction&>(rAct).GetSize() );
+ break;
+
+ case MetaActionType::BMPEXSCALEPART:
+ aActionBounds = tools::Rectangle( static_cast<const MetaBmpExScalePartAction&>(rAct).GetDestPoint(),
+ static_cast<const MetaBmpExScalePartAction&>(rAct).GetDestSize() );
+ break;
+
+ case MetaActionType::MASK:
+ aActionBounds = tools::Rectangle( static_cast<const MetaMaskAction&>(rAct).GetPoint(),
+ rOut.PixelToLogic( static_cast<const MetaMaskAction&>(rAct).GetBitmap().GetSizePixel() ) );
+ break;
+
+ case MetaActionType::MASKSCALE:
+ aActionBounds = tools::Rectangle( static_cast<const MetaMaskScaleAction&>(rAct).GetPoint(),
+ static_cast<const MetaMaskScaleAction&>(rAct).GetSize() );
+ break;
+
+ case MetaActionType::MASKSCALEPART:
+ aActionBounds = tools::Rectangle( static_cast<const MetaMaskScalePartAction&>(rAct).GetDestPoint(),
+ static_cast<const MetaMaskScalePartAction&>(rAct).GetDestSize() );
+ break;
+
+ case MetaActionType::GRADIENT:
+ aActionBounds = static_cast<const MetaGradientAction&>(rAct).GetRect();
+ break;
+
+ case MetaActionType::GRADIENTEX:
+ aActionBounds = static_cast<const MetaGradientExAction&>(rAct).GetPolyPolygon().GetBoundRect();
+ break;
+
+ case MetaActionType::HATCH:
+ aActionBounds = static_cast<const MetaHatchAction&>(rAct).GetPolyPolygon().GetBoundRect();
+ break;
+
+ case MetaActionType::WALLPAPER:
+ aActionBounds = static_cast<const MetaWallpaperAction&>(rAct).GetRect();
+ break;
+
+ case MetaActionType::Transparent:
+ aActionBounds = static_cast<const MetaTransparentAction&>(rAct).GetPolyPolygon().GetBoundRect();
+ break;
+
+ case MetaActionType::FLOATTRANSPARENT:
+ aActionBounds = tools::Rectangle( static_cast<const MetaFloatTransparentAction&>(rAct).GetPoint(),
+ static_cast<const MetaFloatTransparentAction&>(rAct).GetSize() );
+ break;
+
+ case MetaActionType::EPS:
+ aActionBounds = tools::Rectangle( static_cast<const MetaEPSAction&>(rAct).GetPoint(),
+ static_cast<const MetaEPSAction&>(rAct).GetSize() );
+ break;
+
+ case MetaActionType::TEXT:
+ {
+ const MetaTextAction& rTextAct = static_cast<const MetaTextAction&>(rAct);
+ const OUString aString( rTextAct.GetText().copy(rTextAct.GetIndex(), rTextAct.GetLen()) );
+
+ if (!aString.isEmpty())
+ {
+ const Point aPtLog( rTextAct.GetPoint() );
+
+ // #105987# Use API method instead of Impl* methods
+ // #107490# Set base parameter equal to index parameter
+ rOut.GetTextBoundRect( aActionBounds, rTextAct.GetText(), rTextAct.GetIndex(),
+ rTextAct.GetIndex(), rTextAct.GetLen() );
+ aActionBounds.Move( aPtLog.X(), aPtLog.Y() );
+ }
+ }
+ break;
+
+ case MetaActionType::TEXTARRAY:
+ {
+ const MetaTextArrayAction& rTextAct = static_cast<const MetaTextArrayAction&>(rAct);
+ const OUString aString( rTextAct.GetText().copy(rTextAct.GetIndex(), rTextAct.GetLen()) );
+
+ if( !aString.isEmpty() )
+ {
+ // #105987# ImplLayout takes everything in logical coordinates
+ std::unique_ptr<SalLayout> pSalLayout = rOut.ImplLayout( rTextAct.GetText(), rTextAct.GetIndex(),
+ rTextAct.GetLen(), rTextAct.GetPoint(),
+ 0, rTextAct.GetDXArray());
+ if( pSalLayout )
+ {
+ tools::Rectangle aBoundRect( rOut.ImplGetTextBoundRect( *pSalLayout ) );
+ aActionBounds = rOut.PixelToLogic( aBoundRect );
+ }
+ }
+ }
+ break;
+
+ case MetaActionType::TEXTRECT:
+ aActionBounds = static_cast<const MetaTextRectAction&>(rAct).GetRect();
+ break;
+
+ case MetaActionType::STRETCHTEXT:
+ {
+ const MetaStretchTextAction& rTextAct = static_cast<const MetaStretchTextAction&>(rAct);
+ const OUString aString( rTextAct.GetText().copy(rTextAct.GetIndex(), rTextAct.GetLen()) );
+
+ // #i16195# Literate copy from TextArray action, the
+ // semantics for the ImplLayout call are copied from the
+ // OutDev::DrawStretchText() code. Unfortunately, also in
+ // this case, public outdev methods such as GetTextWidth()
+ // don't provide enough info.
+ if( !aString.isEmpty() )
+ {
+ // #105987# ImplLayout takes everything in logical coordinates
+ std::unique_ptr<SalLayout> pSalLayout = rOut.ImplLayout( rTextAct.GetText(), rTextAct.GetIndex(),
+ rTextAct.GetLen(), rTextAct.GetPoint(),
+ rTextAct.GetWidth() );
+ if( pSalLayout )
+ {
+ tools::Rectangle aBoundRect( rOut.ImplGetTextBoundRect( *pSalLayout ) );
+ aActionBounds = rOut.PixelToLogic( aBoundRect );
+ }
+ }
+ }
+ break;
+
+ case MetaActionType::TEXTLINE:
+ OSL_FAIL("MetaActionType::TEXTLINE not supported");
+ break;
+
+ default:
+ break;
+ }
+
+ if( !aActionBounds.IsEmpty() )
+ {
+ // fdo#40421 limit current action's output to clipped area
+ if( rOut.IsClipRegion() )
+ return rOut.LogicToPixel(
+ rOut.GetClipRegion().GetBoundRect().Intersection( aActionBounds ) );
+ else
+ return rOut.LogicToPixel( aActionBounds );
+ }
+ else
+ return tools::Rectangle();
+}
+
+} // end anon namespace
+
+// TODO: this massive function operates on metafiles, so eventually it should probably
+// be shifted to the GDIMetaFile class
+bool OutputDevice::RemoveTransparenciesFromMetaFile( const GDIMetaFile& rInMtf, GDIMetaFile& rOutMtf,
+ tools::Long nMaxBmpDPIX, tools::Long nMaxBmpDPIY,
+ bool bReduceTransparency, bool bTransparencyAutoMode,
+ bool bDownsampleBitmaps,
+ const Color& rBackground
+ )
+{
+ MetaAction* pCurrAct;
+ bool bTransparent( false );
+
+ rOutMtf.Clear();
+
+ if(!bReduceTransparency || bTransparencyAutoMode)
+ bTransparent = rInMtf.HasTransparentActions();
+
+ // #i10613# Determine set of connected components containing transparent objects. These are
+ // then processed as bitmaps, the original actions are removed from the metafile.
+ if( !bTransparent )
+ {
+ // nothing transparent -> just copy
+ rOutMtf = rInMtf;
+ }
+ else
+ {
+ // #i10613#
+ // This works as follows: we want a number of distinct sets of
+ // connected components, where each set contains metafile
+ // actions that are intersecting (note: there are possibly
+ // more actions contained as are directly intersecting,
+ // because we can only produce rectangular bitmaps later
+ // on. Thus, each set of connected components is the smallest
+ // enclosing, axis-aligned rectangle that completely bounds a
+ // number of intersecting metafile actions, plus any action
+ // that would otherwise be cut in two). Therefore, we
+ // iteratively add metafile actions from the original metafile
+ // to this connected components list (aCCList), by checking
+ // each element's bounding box against intersection with the
+ // metaaction at hand.
+ // All those intersecting elements are removed from aCCList
+ // and collected in a temporary list (aCCMergeList). After all
+ // elements have been checked, the aCCMergeList elements are
+ // merged with the metaaction at hand into one resulting
+ // connected component, with one big bounding box, and
+ // inserted into aCCList again.
+ // The time complexity of this algorithm is O(n^3), where n is
+ // the number of metafile actions, and it finds all distinct
+ // regions of rectangle-bounded connected components. This
+ // algorithm was designed by AF.
+
+ // STAGE 1: Detect background
+
+ // Receives uniform background content, and is _not_ merged
+ // nor checked for intersection against other aCCList elements
+ ConnectedComponents aBackgroundComponent;
+
+ // Read the configuration value of minimal object area where transparency will be removed
+ double fReduceTransparencyMinArea = officecfg::Office::Common::VCL::ReduceTransparencyMinArea::get() / 100.0;
+ SAL_WARN_IF(fReduceTransparencyMinArea > 1.0, "vcl",
+ "Value of ReduceTransparencyMinArea config option is too high");
+ SAL_WARN_IF(fReduceTransparencyMinArea < 0.0, "vcl",
+ "Value of ReduceTransparencyMinArea config option is too low");
+ fReduceTransparencyMinArea = std::clamp(fReduceTransparencyMinArea, 0.0, 1.0);
+
+ // create an OutputDevice to record mapmode changes and the like
+ ScopedVclPtrInstance< VirtualDevice > aMapModeVDev;
+ aMapModeVDev->mnDPIX = mnDPIX;
+ aMapModeVDev->mnDPIY = mnDPIY;
+ aMapModeVDev->EnableOutput(false);
+
+ // weed out page-filling background objects (if they are
+ // uniformly coloured). Keeping them outside the other
+ // connected components often prevents whole-page bitmap
+ // generation.
+ bool bStillBackground=true; // true until first non-bg action
+ int nActionNum = 0, nLastBgAction = -1;
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).FirstAction();
+ if( rBackground != COL_TRANSPARENT )
+ {
+ aBackgroundComponent.aBgColor = rBackground;
+ aBackgroundComponent.aBounds = GetBackgroundComponentBounds();
+ }
+ while( pCurrAct && bStillBackground )
+ {
+ switch( pCurrAct->GetType() )
+ {
+ case MetaActionType::RECT:
+ {
+ if( !checkRect(
+ aBackgroundComponent.aBounds,
+ aBackgroundComponent.aBgColor,
+ static_cast<const MetaRectAction*>(pCurrAct)->GetRect(),
+ *aMapModeVDev) )
+ bStillBackground=false; // incomplete occlusion of background
+ else
+ nLastBgAction=nActionNum; // this _is_ background
+ break;
+ }
+ case MetaActionType::POLYGON:
+ {
+ const tools::Polygon aPoly(
+ static_cast<const MetaPolygonAction*>(pCurrAct)->GetPolygon());
+ if( !basegfx::utils::isRectangle(
+ aPoly.getB2DPolygon()) ||
+ !checkRect(
+ aBackgroundComponent.aBounds,
+ aBackgroundComponent.aBgColor,
+ aPoly.GetBoundRect(),
+ *aMapModeVDev) )
+ bStillBackground=false; // incomplete occlusion of background
+ else
+ nLastBgAction=nActionNum; // this _is_ background
+ break;
+ }
+ case MetaActionType::POLYPOLYGON:
+ {
+ const tools::PolyPolygon aPoly(
+ static_cast<const MetaPolyPolygonAction*>(pCurrAct)->GetPolyPolygon());
+ if( aPoly.Count() != 1 ||
+ !basegfx::utils::isRectangle(
+ aPoly[0].getB2DPolygon()) ||
+ !checkRect(
+ aBackgroundComponent.aBounds,
+ aBackgroundComponent.aBgColor,
+ aPoly.GetBoundRect(),
+ *aMapModeVDev) )
+ bStillBackground=false; // incomplete occlusion of background
+ else
+ nLastBgAction=nActionNum; // this _is_ background
+ break;
+ }
+ case MetaActionType::WALLPAPER:
+ {
+ if( !checkRect(
+ aBackgroundComponent.aBounds,
+ aBackgroundComponent.aBgColor,
+ static_cast<const MetaWallpaperAction*>(pCurrAct)->GetRect(),
+ *aMapModeVDev) )
+ bStillBackground=false; // incomplete occlusion of background
+ else
+ nLastBgAction=nActionNum; // this _is_ background
+ break;
+ }
+ default:
+ {
+ if( ImplIsNotTransparent( *pCurrAct,
+ *aMapModeVDev ) )
+ bStillBackground=false; // non-transparent action, possibly
+ // not uniform
+ else
+ // extend current bounds (next uniform action
+ // needs to fully cover this area)
+ aBackgroundComponent.aBounds.Union(
+ ImplCalcActionBounds(*pCurrAct, *aMapModeVDev) );
+ break;
+ }
+ }
+
+ // execute action to get correct MapModes etc.
+ pCurrAct->Execute( aMapModeVDev.get() );
+
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).NextAction();
+ ++nActionNum;
+ }
+
+ if (nLastBgAction != -1)
+ {
+ size_t nActionSize = rInMtf.GetActionSize();
+ // tdf#134736 move nLastBgAction to also include any trailing pops
+ for (size_t nPostLastBgAction = nLastBgAction + 1; nPostLastBgAction < nActionSize; ++nPostLastBgAction)
+ {
+ if (rInMtf.GetAction(nPostLastBgAction)->GetType() != MetaActionType::POP)
+ break;
+ nLastBgAction = nPostLastBgAction;
+ }
+ }
+
+ aMapModeVDev->ClearStack(); // clean up aMapModeVDev
+
+ // fast-forward until one after the last background action
+ // (need to reconstruct map mode vdev state)
+ nActionNum=0;
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).FirstAction();
+ while( pCurrAct && nActionNum<=nLastBgAction )
+ {
+ // up to and including last ink-generating background
+ // action go to background component
+ aBackgroundComponent.aComponentList.emplace_back(
+ pCurrAct, nActionNum );
+
+ // execute action to get correct MapModes etc.
+ pCurrAct->Execute( aMapModeVDev.get() );
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).NextAction();
+ ++nActionNum;
+ }
+
+ // STAGE 2: Generate connected components list
+
+ ::std::vector<ConnectedComponents> aCCList; // contains distinct sets of connected components as elements.
+
+ // iterate over all actions (start where background action
+ // search left off)
+ for( ;
+ pCurrAct;
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).NextAction(), ++nActionNum )
+ {
+ // execute action to get correct MapModes etc.
+ pCurrAct->Execute( aMapModeVDev.get() );
+
+ // cache bounds of current action
+ const tools::Rectangle aBBCurrAct( ImplCalcActionBounds(*pCurrAct, *aMapModeVDev) );
+
+ // accumulate collected bounds here, initialize with current action
+ tools::Rectangle aTotalBounds( aBBCurrAct ); // thus, aTotalComponents.aBounds is empty
+ // for non-output-generating actions
+ bool bTreatSpecial( false );
+ ConnectedComponents aTotalComponents;
+
+ // STAGE 2.1: Search for intersecting cc entries
+
+ // if aBBCurrAct is empty, it will intersect with no
+ // aCCList member. Thus, we can save the check.
+ // Furthermore, this ensures that non-output-generating
+ // actions get their own aCCList entry, which is necessary
+ // when copying them to the output metafile (see stage 4
+ // below).
+
+ // #107169# Wholly transparent objects need
+ // not be considered for connected components,
+ // too. Just put each of them into a separate
+ // component.
+ aTotalComponents.bIsFullyTransparent = !ImplIsNotTransparent(*pCurrAct, *aMapModeVDev);
+
+ if( !aBBCurrAct.IsEmpty() &&
+ !aTotalComponents.bIsFullyTransparent )
+ {
+ if( !aBackgroundComponent.aComponentList.empty() &&
+ !aBackgroundComponent.aBounds.Contains(aTotalBounds) )
+ {
+ // it seems the background is not large enough. to
+ // be on the safe side, combine with this component.
+ aTotalBounds.Union( aBackgroundComponent.aBounds );
+
+ // extract all aCurr actions to aTotalComponents
+ aTotalComponents.aComponentList.splice( aTotalComponents.aComponentList.end(),
+ aBackgroundComponent.aComponentList );
+
+ if( aBackgroundComponent.bIsSpecial )
+ bTreatSpecial = true;
+ }
+
+ bool bSomeComponentsChanged;
+
+ // now, this is unfortunate: since changing anyone of
+ // the aCCList elements (e.g. by merging or addition
+ // of an action) might generate new intersection with
+ // other aCCList elements, have to repeat the whole
+ // element scanning, until nothing changes anymore.
+ // Thus, this loop here makes us O(n^3) in the worst
+ // case.
+ do
+ {
+ // only loop here if 'intersects' branch below was hit
+ bSomeComponentsChanged = false;
+
+ // iterate over all current members of aCCList
+ for( auto aCurrCC=aCCList.begin(); aCurrCC != aCCList.end(); )
+ {
+ // first check if current element's bounds are
+ // empty. This ensures that empty actions are not
+ // merged into one component, as a matter of fact,
+ // they have no position.
+
+ // #107169# Wholly transparent objects need
+ // not be considered for connected components,
+ // too. Just put each of them into a separate
+ // component.
+ if( !aCurrCC->aBounds.IsEmpty() &&
+ !aCurrCC->bIsFullyTransparent &&
+ aCurrCC->aBounds.Overlaps( aTotalBounds ) )
+ {
+ // union the intersecting aCCList element into aTotalComponents
+
+ // calc union bounding box
+ aTotalBounds.Union( aCurrCC->aBounds );
+
+ // extract all aCurr actions to aTotalComponents
+ aTotalComponents.aComponentList.splice( aTotalComponents.aComponentList.end(),
+ aCurrCC->aComponentList );
+
+ if( aCurrCC->bIsSpecial )
+ bTreatSpecial = true;
+
+ // remove and delete aCurrCC element from list (we've now merged its content)
+ aCurrCC = aCCList.erase( aCurrCC );
+
+ // at least one component changed, need to rescan everything
+ bSomeComponentsChanged = true;
+ }
+ else
+ {
+ ++aCurrCC;
+ }
+ }
+ }
+ while( bSomeComponentsChanged );
+ }
+
+ // STAGE 2.2: Determine special state for cc element
+
+ // now test whether the whole connected component must be
+ // treated specially (i.e. rendered as a bitmap): if the
+ // added action is the very first action, or all actions
+ // before it are completely transparent, the connected
+ // component need not be treated specially, not even if
+ // the added action contains transparency. This is because
+ // painting of transparent objects on _white background_
+ // works without alpha compositing (you just calculate the
+ // color). Note that for the test "all objects before me
+ // are transparent" no sorting is necessary, since the
+ // added metaaction pCurrAct is always in the order the
+ // metafile is painted. Generally, the order of the
+ // metaactions in the ConnectedComponents are not
+ // guaranteed to be the same as in the metafile.
+ if( bTreatSpecial )
+ {
+ // prev component(s) special -> this one, too
+ aTotalComponents.bIsSpecial = true;
+ }
+ else if(!pCurrAct->IsTransparent())
+ {
+ // added action and none of prev components special ->
+ // this one normal, too
+ aTotalComponents.bIsSpecial = false;
+ }
+ else
+ {
+ // added action is special and none of prev components
+ // special -> do the detailed tests
+
+ // can the action handle transparency correctly
+ // (i.e. when painted on white background, does the
+ // action still look correct)?
+ if( !DoesActionHandleTransparency( *pCurrAct ) )
+ {
+ // no, action cannot handle its transparency on
+ // a printer device, render to bitmap
+ aTotalComponents.bIsSpecial = true;
+ }
+ else
+ {
+ // yes, action can handle its transparency, so
+ // check whether we're on white background
+ if( aTotalComponents.aComponentList.empty() )
+ {
+ // nothing between pCurrAct and page
+ // background -> don't be special
+ aTotalComponents.bIsSpecial = false;
+ }
+ else
+ {
+ // #107169# Fixes above now ensure that _no_
+ // object in the list is fully transparent. Thus,
+ // if the component list is not empty above, we
+ // must assume that we have to treat this
+ // component special.
+
+ // there are non-transparent objects between
+ // pCurrAct and the empty sheet of paper -> be
+ // special, then
+ aTotalComponents.bIsSpecial = true;
+ }
+ }
+ }
+
+ // STAGE 2.3: Add newly generated CC list element
+
+ // set new bounds and add action to list
+ aTotalComponents.aBounds = aTotalBounds;
+ aTotalComponents.aComponentList.emplace_back(
+ pCurrAct, nActionNum );
+
+ // add aTotalComponents as a new entry to aCCList
+ aCCList.push_back( aTotalComponents );
+
+ SAL_WARN_IF( aTotalComponents.aComponentList.empty(), "vcl",
+ "Printer::GetPreparedMetaFile empty component" );
+ SAL_WARN_IF( aTotalComponents.aBounds.IsEmpty() && (aTotalComponents.aComponentList.size() != 1), "vcl",
+ "Printer::GetPreparedMetaFile non-output generating actions must be solitary");
+ SAL_WARN_IF( aTotalComponents.bIsFullyTransparent && (aTotalComponents.aComponentList.size() != 1), "vcl",
+ "Printer::GetPreparedMetaFile fully transparent actions must be solitary");
+ }
+
+ // well now, we've got the list of disjunct connected
+ // components. Now we've got to create a map, which contains
+ // the corresponding aCCList element for every
+ // metaaction. Later on, we always process the complete
+ // metafile for each bitmap to be generated, but switch on
+ // output only for actions contained in the then current
+ // aCCList element. This ensures correct mapmode and attribute
+ // settings for all cases.
+
+ // maps mtf actions to CC list entries
+ ::std::vector< const ConnectedComponents* > aCCList_MemberMap( rInMtf.GetActionSize() );
+
+ // iterate over all aCCList members and their contained metaactions
+ for (auto const& currentItem : aCCList)
+ {
+ for (auto const& currentAction : currentItem.aComponentList)
+ {
+ // set pointer to aCCList element for corresponding index
+ aCCList_MemberMap[ currentAction.second ] = &currentItem;
+ }
+ }
+
+ // STAGE 3.1: Output background mtf actions (if there are any)
+
+ for (auto & component : aBackgroundComponent.aComponentList)
+ {
+ // simply add this action (above, we inserted the actions
+ // starting at index 0 up to and including nLastBgAction)
+ rOutMtf.AddAction( component.first );
+ }
+
+ // STAGE 3.2: Generate banded bitmaps for special regions
+
+ Point aPageOffset;
+ Size aTmpSize( GetOutputSizePixel() );
+ if( meOutDevType == OUTDEV_PDF )
+ {
+ auto pPdfWriter = static_cast<vcl::PDFWriterImpl*>(this);
+ aTmpSize = LogicToPixel(pPdfWriter->getCurPageSize(), MapMode(MapUnit::MapPoint));
+
+ // also add error code to PDFWriter
+ pPdfWriter->insertError(vcl::PDFWriter::Warning_Transparency_Converted);
+ }
+ else if( meOutDevType == OUTDEV_PRINTER )
+ {
+ Printer* pThis = dynamic_cast<Printer*>(this);
+ assert(pThis);
+ aPageOffset = pThis->GetPageOffsetPixel();
+ aPageOffset = Point( 0, 0 ) - aPageOffset;
+ aTmpSize = pThis->GetPaperSizePixel();
+ }
+ const tools::Rectangle aOutputRect( aPageOffset, aTmpSize );
+ bool bTiling = dynamic_cast<Printer*>(this) != nullptr;
+
+ // iterate over all aCCList members and generate bitmaps for the special ones
+ for (auto & currentItem : aCCList)
+ {
+ if( currentItem.bIsSpecial )
+ {
+ tools::Rectangle aBoundRect( currentItem.aBounds );
+ aBoundRect.Intersection( aOutputRect );
+
+ const double fBmpArea( static_cast<double>(aBoundRect.GetWidth()) * aBoundRect.GetHeight() );
+ const double fOutArea( static_cast<double>(aOutputRect.GetWidth()) * aOutputRect.GetHeight() );
+
+ // check if output doesn't exceed given size
+ if( bReduceTransparency && bTransparencyAutoMode && ( fBmpArea > ( fReduceTransparencyMinArea * fOutArea ) ) )
+ {
+ // output normally. Therefore, we simply clear the
+ // special attribute, as everything non-special is
+ // copied to rOutMtf further below.
+ currentItem.bIsSpecial = false;
+ }
+ else
+ {
+ // create new bitmap action first
+ if( aBoundRect.GetWidth() && aBoundRect.GetHeight() )
+ {
+ Point aDstPtPix( aBoundRect.TopLeft() );
+ Size aDstSzPix;
+
+ ScopedVclPtrInstance<VirtualDevice> aMapVDev; // here, we record only mapmode information
+ aMapVDev->EnableOutput(false);
+
+ ScopedVclPtrInstance<VirtualDevice> aPaintVDev; // into this one, we render.
+ aPaintVDev->SetBackground( aBackgroundComponent.aBgColor );
+
+ rOutMtf.AddAction( new MetaPushAction( vcl::PushFlags::MAPMODE ) );
+ rOutMtf.AddAction( new MetaMapModeAction() );
+
+ aPaintVDev->SetDrawMode( GetDrawMode() );
+
+ while( aDstPtPix.Y() <= aBoundRect.Bottom() )
+ {
+ aDstPtPix.setX( aBoundRect.Left() );
+ aDstSzPix = bTiling ? Size( MAX_TILE_WIDTH, MAX_TILE_HEIGHT ) : aBoundRect.GetSize();
+
+ if( ( aDstPtPix.Y() + aDstSzPix.Height() - 1 ) > aBoundRect.Bottom() )
+ aDstSzPix.setHeight( aBoundRect.Bottom() - aDstPtPix.Y() + 1 );
+
+ while( aDstPtPix.X() <= aBoundRect.Right() )
+ {
+ if( ( aDstPtPix.X() + aDstSzPix.Width() - 1 ) > aBoundRect.Right() )
+ aDstSzPix.setWidth( aBoundRect.Right() - aDstPtPix.X() + 1 );
+
+ if( !tools::Rectangle( aDstPtPix, aDstSzPix ).Intersection( aBoundRect ).IsEmpty() &&
+ aPaintVDev->SetOutputSizePixel( aDstSzPix ) )
+ {
+ aPaintVDev->Push();
+ aMapVDev->Push();
+
+ aMapVDev->mnDPIX = aPaintVDev->mnDPIX = mnDPIX;
+ aMapVDev->mnDPIY = aPaintVDev->mnDPIY = mnDPIY;
+
+ aPaintVDev->EnableOutput(false);
+
+ // iterate over all actions
+ for( pCurrAct=const_cast<GDIMetaFile&>(rInMtf).FirstAction(), nActionNum=0;
+ pCurrAct;
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).NextAction(), ++nActionNum )
+ {
+ // enable output only for
+ // actions that are members of
+ // the current aCCList element
+ // (currentItem)
+ if( aCCList_MemberMap[nActionNum] == &currentItem )
+ aPaintVDev->EnableOutput();
+
+ // but process every action
+ const MetaActionType nType( pCurrAct->GetType() );
+
+ if( MetaActionType::MAPMODE == nType )
+ {
+ pCurrAct->Execute( aMapVDev.get() );
+
+ MapMode aMtfMap( aMapVDev->GetMapMode() );
+ const Point aNewOrg( aMapVDev->PixelToLogic( aDstPtPix ) );
+
+ aMtfMap.SetOrigin( Point( -aNewOrg.X(), -aNewOrg.Y() ) );
+ aPaintVDev->SetMapMode( aMtfMap );
+ }
+ else if( ( MetaActionType::PUSH == nType ) || MetaActionType::POP == nType )
+ {
+ pCurrAct->Execute( aMapVDev.get() );
+ pCurrAct->Execute( aPaintVDev.get() );
+ }
+ else if( MetaActionType::GRADIENT == nType )
+ {
+ MetaGradientAction* pGradientAction = static_cast<MetaGradientAction*>(pCurrAct);
+ Printer* pPrinter = dynamic_cast< Printer* >(this);
+ if( pPrinter )
+ pPrinter->DrawGradientEx( aPaintVDev.get(), pGradientAction->GetRect(), pGradientAction->GetGradient() );
+ else
+ DrawGradient( pGradientAction->GetRect(), pGradientAction->GetGradient() );
+ }
+ else
+ {
+ pCurrAct->Execute( aPaintVDev.get() );
+ }
+
+ Application::Reschedule( true );
+ }
+
+ const bool bOldMap = mbMap;
+ mbMap = aPaintVDev->mbMap = false;
+
+ Bitmap aBandBmp( aPaintVDev->GetBitmap( Point(), aDstSzPix ) );
+
+ // scale down bitmap, if requested
+ if( bDownsampleBitmaps )
+ aBandBmp = vcl::bitmap::GetDownsampledBitmap(PixelToLogic(LogicToPixel(aDstSzPix), MapMode(MapUnit::MapTwip)),
+ Point(), aBandBmp.GetSizePixel(),
+ aBandBmp, nMaxBmpDPIX, nMaxBmpDPIY);
+
+ rOutMtf.AddAction( new MetaCommentAction( "PRNSPOOL_TRANSPARENTBITMAP_BEGIN" ) );
+ rOutMtf.AddAction( new MetaBmpScaleAction( aDstPtPix, aDstSzPix, aBandBmp ) );
+ rOutMtf.AddAction( new MetaCommentAction( "PRNSPOOL_TRANSPARENTBITMAP_END" ) );
+
+ aPaintVDev->mbMap = true;
+ mbMap = bOldMap;
+ aMapVDev->Pop();
+ aPaintVDev->Pop();
+ }
+
+ // overlapping bands to avoid missing lines (e.g. PostScript)
+ aDstPtPix.AdjustX(aDstSzPix.Width() );
+ }
+
+ // overlapping bands to avoid missing lines (e.g. PostScript)
+ aDstPtPix.AdjustY(aDstSzPix.Height() );
+ }
+
+ rOutMtf.AddAction( new MetaPopAction() );
+ }
+ }
+ }
+ }
+
+ aMapModeVDev->ClearStack(); // clean up aMapModeVDev
+
+ // STAGE 4: Copy actions to output metafile
+
+ // iterate over all actions and duplicate the ones not in a
+ // special aCCList member into rOutMtf
+ for( pCurrAct=const_cast<GDIMetaFile&>(rInMtf).FirstAction(), nActionNum=0;
+ pCurrAct;
+ pCurrAct=const_cast<GDIMetaFile&>(rInMtf).NextAction(), ++nActionNum )
+ {
+ const ConnectedComponents* pCurrAssociatedComponent = aCCList_MemberMap[nActionNum];
+
+ // NOTE: This relies on the fact that map-mode or draw
+ // mode changing actions are solitary aCCList elements and
+ // have empty bounding boxes, see comment on stage 2.1
+ // above
+ if( pCurrAssociatedComponent &&
+ (pCurrAssociatedComponent->aBounds.IsEmpty() ||
+ !pCurrAssociatedComponent->bIsSpecial) )
+ {
+ // #107169# Treat transparent bitmaps special, if they
+ // are the first (or sole) action in their bounds
+ // list. Note that we previously ensured that no
+ // fully-transparent objects are before us here.
+ if( DoesActionHandleTransparency( *pCurrAct ) &&
+ pCurrAssociatedComponent->aComponentList.begin()->first == pCurrAct )
+ {
+ // convert actions, where masked-out parts are of
+ // given background color
+ ImplConvertTransparentAction(rOutMtf,
+ *pCurrAct,
+ *aMapModeVDev,
+ aBackgroundComponent.aBgColor);
+ }
+ else
+ {
+ // simply add this action
+ rOutMtf.AddAction( pCurrAct );
+ }
+
+ pCurrAct->Execute(aMapModeVDev.get());
+ }
+ }
+
+ rOutMtf.SetPrefMapMode( rInMtf.GetPrefMapMode() );
+ rOutMtf.SetPrefSize( rInMtf.GetPrefSize() );
+
+#if OSL_DEBUG_LEVEL > 1
+ // iterate over all aCCList members and generate rectangles for the bounding boxes
+ rOutMtf.AddAction( new MetaFillColorAction( COL_WHITE, false ) );
+ for(auto const& aCurr:aCCList)
+ {
+ if( aCurr.bIsSpecial )
+ rOutMtf.AddAction( new MetaLineColorAction( COL_RED, true) );
+ else
+ rOutMtf.AddAction( new MetaLineColorAction( COL_BLUE, true) );
+
+ rOutMtf.AddAction( new MetaRectAction( aMapModeVDev->PixelToLogic( aCurr.aBounds ) ) );
+ }
+#endif
+ }
+ return bTransparent;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 07:44:14 +0000