/* -*- 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 <pdf/pdfwriter_impl.hxx>
#include <pdf/EncryptionHashTransporter.hxx>
#include <vcl/pdfextoutdevdata.hxx>
#include <vcl/virdev.hxx>
#include <vcl/gdimtf.hxx>
#include <vcl/metaact.hxx>
#include <vcl/BitmapReadAccess.hxx>
#include <vcl/graph.hxx>
#include <unotools/streamwrap.hxx>
#include <tools/helpers.hxx>
#include <tools/fract.hxx>
#include <tools/stream.hxx>
#include <comphelper/fileformat.h>
#include <comphelper/processfactory.hxx>
#include <comphelper/propertyvalue.hxx>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/graphic/GraphicProvider.hpp>
#include <com/sun/star/graphic/XGraphicProvider.hpp>
#include <com/sun/star/beans/XMaterialHolder.hpp>
#include <o3tl/unit_conversion.hxx>
#include <osl/diagnose.h>
#include <vcl/skia/SkiaHelper.hxx>
#include <sal/log.hxx>
#include <memory>
using namespace vcl;
using namespace com::sun::star;
using namespace com::sun::star::uno;
using namespace com::sun::star::beans;
static bool lcl_canUsePDFAxialShading(const Gradient& rGradient);
void PDFWriterImpl::implWriteGradient( const tools::PolyPolygon& i_rPolyPoly, const Gradient& i_rGradient,
VirtualDevice* i_pDummyVDev, const vcl::PDFWriter::PlayMetafileContext& i_rContext )
{
GDIMetaFile aTmpMtf;
Gradient aGradient(i_rGradient);
aGradient.AddGradientActions( i_rPolyPoly.GetBoundRect(), aTmpMtf );
m_rOuterFace.Push();
m_rOuterFace.IntersectClipRegion( i_rPolyPoly.getB2DPolyPolygon() );
playMetafile( aTmpMtf, nullptr, i_rContext, i_pDummyVDev );
m_rOuterFace.Pop();
}
void PDFWriterImpl::implWriteBitmapEx( const Point& i_rPoint, const Size& i_rSize, const BitmapEx& i_rBitmapEx, const Graphic& i_Graphic,
VirtualDevice const * i_pDummyVDev, const vcl::PDFWriter::PlayMetafileContext& i_rContext )
{
if ( i_rBitmapEx.IsEmpty() || !i_rSize.Width() || !i_rSize.Height() )
return;
BitmapEx aBitmapEx( i_rBitmapEx );
Point aPoint( i_rPoint );
Size aSize( i_rSize );
// #i19065# Negative sizes have mirror semantics on
// OutputDevice. BitmapEx and co. have no idea about that, so
// perform that _before_ doing anything with aBitmapEx.
BmpMirrorFlags nMirrorFlags(BmpMirrorFlags::NONE);
if( aSize.Width() < 0 )
{
aSize.setWidth( aSize.Width() * -1 );
aPoint.AdjustX( -(aSize.Width()) );
nMirrorFlags |= BmpMirrorFlags::Horizontal;
}
if( aSize.Height() < 0 )
{
aSize.setHeight( aSize.Height() * -1 );
aPoint.AdjustY( -(aSize.Height()) );
nMirrorFlags |= BmpMirrorFlags::Vertical;
}
if( nMirrorFlags != BmpMirrorFlags::NONE )
{
aBitmapEx.Mirror( nMirrorFlags );
}
bool bIsJpeg = false, bIsPng = false;
if( i_Graphic.GetType() != GraphicType::NONE && i_Graphic.GetBitmapEx() == aBitmapEx )
{
GfxLinkType eType = i_Graphic.GetGfxLink().GetType();
bIsJpeg = (eType == GfxLinkType::NativeJpg);
bIsPng = (eType == GfxLinkType::NativePng);
}
// Do not downsample images smaller than 50x50px.
const Size aBmpSize(aBitmapEx.GetSizePixel());
if (i_rContext.m_nMaxImageResolution > 50 && aBmpSize.getWidth() > 50
&& aBmpSize.getHeight() > 50)
{
// do downsampling if necessary
const Size aDstSizeTwip( i_pDummyVDev->PixelToLogic(i_pDummyVDev->LogicToPixel(aSize), MapMode(MapUnit::MapTwip)) );
const double fBmpPixelX = aBmpSize.Width();
const double fBmpPixelY = aBmpSize.Height();
const double fMaxPixelX
= o3tl::convert<double>(aDstSizeTwip.Width(), o3tl::Length::twip, o3tl::Length::in)
* i_rContext.m_nMaxImageResolution;
const double fMaxPixelY
= o3tl::convert<double>(aDstSizeTwip.Height(), o3tl::Length::twip, o3tl::Length::in)
* i_rContext.m_nMaxImageResolution;
// check, if the bitmap DPI exceeds the maximum DPI (allow 4 pixel rounding tolerance)
if( ( ( fBmpPixelX > ( fMaxPixelX + 4 ) ) ||
( fBmpPixelY > ( fMaxPixelY + 4 ) ) ) &&
( fBmpPixelY > 0.0 ) && ( fMaxPixelY > 0.0 ) )
{
// do scaling
Size aNewBmpSize;
const double fBmpWH = fBmpPixelX / fBmpPixelY;
const double fMaxWH = fMaxPixelX / fMaxPixelY;
if( fBmpWH < fMaxWH )
{
aNewBmpSize.setWidth(basegfx::fround<tools::Long>(fMaxPixelY * fBmpWH));
aNewBmpSize.setHeight(basegfx::fround<tools::Long>(fMaxPixelY));
}
else if( fBmpWH > 0.0 )
{
aNewBmpSize.setWidth(basegfx::fround<tools::Long>(fMaxPixelX));
aNewBmpSize.setHeight(basegfx::fround<tools::Long>(fMaxPixelX / fBmpWH));
}
if( aNewBmpSize.Width() && aNewBmpSize.Height() )
{
// #i121233# Use best quality for PDF exports
aBitmapEx.Scale( aNewBmpSize, BmpScaleFlag::BestQuality );
}
else
{
aBitmapEx.SetEmpty();
}
}
}
const Size aSizePixel( aBitmapEx.GetSizePixel() );
if ( !(aSizePixel.Width() && aSizePixel.Height()) )
return;
if( m_aContext.ColorMode == PDFWriter::DrawGreyscale )
aBitmapEx.Convert(BmpConversion::N8BitGreys);
bool bUseJPGCompression = !i_rContext.m_bOnlyLosslessCompression;
if ( bIsPng || ( aSizePixel.Width() < 32 ) || ( aSizePixel.Height() < 32 ) )
bUseJPGCompression = false;
auto pStrm=std::make_shared<SvMemoryStream>();
AlphaMask aAlphaMask;
bool bTrueColorJPG = true;
if ( bUseJPGCompression )
{
// TODO this checks could be done much earlier, saving us
// from trying conversion & stores before...
if ( !aBitmapEx.IsAlpha() )
{
const auto aCacheEntry=m_aPDFBmpCache.find(
aBitmapEx.GetChecksum());
if ( aCacheEntry != m_aPDFBmpCache.end() )
{
m_rOuterFace.DrawJPGBitmap( *aCacheEntry->second, true, aSizePixel,
tools::Rectangle( aPoint, aSize ), aAlphaMask, i_Graphic );
return;
}
}
sal_uInt32 nZippedFileSize = 0; // sj: we will calculate the filesize of a zipped bitmap
if ( !bIsJpeg ) // to determine if jpeg compression is useful
{
SvMemoryStream aTemp;
aTemp.SetCompressMode( aTemp.GetCompressMode() | SvStreamCompressFlags::ZBITMAP );
aTemp.SetVersion( SOFFICE_FILEFORMAT_40 ); // sj: up from version 40 our bitmap stream operator
WriteDIBBitmapEx(aBitmapEx, aTemp); // is capable of zlib stream compression
nZippedFileSize = aTemp.TellEnd();
}
if ( aBitmapEx.IsAlpha() )
aAlphaMask = aBitmapEx.GetAlphaMask();
Graphic aGraphic(BitmapEx(aBitmapEx.GetBitmap()));
Sequence< PropertyValue > aFilterData{
comphelper::makePropertyValue(u"Quality"_ustr, sal_Int32(i_rContext.m_nJPEGQuality)),
comphelper::makePropertyValue(u"ColorMode"_ustr, sal_Int32(0))
};
try
{
uno::Reference < io::XStream > xStream = new utl::OStreamWrapper( *pStrm );
uno::Reference< io::XSeekable > xSeekable( xStream, UNO_QUERY_THROW );
const uno::Reference< uno::XComponentContext >& xContext( comphelper::getProcessComponentContext() );
uno::Reference< graphic::XGraphicProvider > xGraphicProvider( graphic::GraphicProvider::create(xContext) );
uno::Reference< graphic::XGraphic > xGraphic( aGraphic.GetXGraphic() );
uno::Reference < io::XOutputStream > xOut( xStream->getOutputStream() );
uno::Sequence< beans::PropertyValue > aOutMediaProperties{
comphelper::makePropertyValue(u"OutputStream"_ustr, xOut),
comphelper::makePropertyValue(u"MimeType"_ustr, u"image/jpeg"_ustr),
comphelper::makePropertyValue(u"FilterData"_ustr, aFilterData)
};
xGraphicProvider->storeGraphic( xGraphic, aOutMediaProperties );
xOut->flush();
if ( !bIsJpeg && xSeekable->getLength() > nZippedFileSize )
{
bUseJPGCompression = false;
}
else
{
pStrm->Seek( STREAM_SEEK_TO_END );
xSeekable->seek( 0 );
Sequence< PropertyValue > aArgs{ comphelper::makePropertyValue(u"InputStream"_ustr,
xStream) };
uno::Reference< XPropertySet > xPropSet( xGraphicProvider->queryGraphicDescriptor( aArgs ) );
if ( xPropSet.is() )
{
sal_Int16 nBitsPerPixel = 24;
if ( xPropSet->getPropertyValue(u"BitsPerPixel"_ustr) >>= nBitsPerPixel )
{
bTrueColorJPG = nBitsPerPixel != 8;
}
}
}
}
catch( uno::Exception& )
{
bUseJPGCompression = false;
}
}
if ( bUseJPGCompression )
{
m_rOuterFace.DrawJPGBitmap( *pStrm, bTrueColorJPG, aSizePixel, tools::Rectangle( aPoint, aSize ), aAlphaMask, i_Graphic );
if (!aBitmapEx.IsAlpha() && bTrueColorJPG)
{
// Cache last jpeg export
m_aPDFBmpCache.insert(
{aBitmapEx.GetChecksum(), pStrm});
}
}
else if ( aBitmapEx.IsAlpha() )
m_rOuterFace.DrawBitmapEx( aPoint, aSize, aBitmapEx );
else
m_rOuterFace.DrawBitmap( aPoint, aSize, aBitmapEx.GetBitmap(), i_Graphic );
}
void PDFWriterImpl::playMetafile( const GDIMetaFile& i_rMtf, vcl::PDFExtOutDevData* i_pOutDevData, const vcl::PDFWriter::PlayMetafileContext& i_rContext, VirtualDevice* pDummyVDev )
{
bool bAssertionFired( false );
ScopedVclPtr<VirtualDevice> xPrivateDevice;
if( ! pDummyVDev )
{
xPrivateDevice.disposeAndReset(VclPtr<VirtualDevice>::Create());
pDummyVDev = xPrivateDevice.get();
pDummyVDev->EnableOutput( false );
pDummyVDev->SetMapMode( i_rMtf.GetPrefMapMode() );
}
const GDIMetaFile& aMtf( i_rMtf );
for( sal_uInt32 i = 0, nCount = aMtf.GetActionSize(); i < nCount; )
{
if ( !i_pOutDevData || !i_pOutDevData->PlaySyncPageAct( m_rOuterFace, i, aMtf ) )
{
const MetaAction* pAction = aMtf.GetAction( i );
const MetaActionType nType = pAction->GetType();
switch( nType )
{
case MetaActionType::PIXEL:
{
const MetaPixelAction* pA = static_cast<const MetaPixelAction*>(pAction);
m_rOuterFace.DrawPixel( pA->GetPoint(), pA->GetColor() );
}
break;
case MetaActionType::POINT:
{
const MetaPointAction* pA = static_cast<const MetaPointAction*>(pAction);
m_rOuterFace.DrawPixel( pA->GetPoint() );
}
break;
case MetaActionType::LINE:
{
const MetaLineAction* pA = static_cast<const MetaLineAction*>(pAction);
if ( pA->GetLineInfo().IsDefault() )
m_rOuterFace.DrawLine( pA->GetStartPoint(), pA->GetEndPoint() );
else
m_rOuterFace.DrawLine( pA->GetStartPoint(), pA->GetEndPoint(), pA->GetLineInfo() );
}
break;
case MetaActionType::RECT:
{
const MetaRectAction* pA = static_cast<const MetaRectAction*>(pAction);
m_rOuterFace.DrawRect( pA->GetRect() );
}
break;
case MetaActionType::ROUNDRECT:
{
const MetaRoundRectAction* pA = static_cast<const MetaRoundRectAction*>(pAction);
m_rOuterFace.DrawRect( pA->GetRect(), pA->GetHorzRound(), pA->GetVertRound() );
}
break;
case MetaActionType::ELLIPSE:
{
const MetaEllipseAction* pA = static_cast<const MetaEllipseAction*>(pAction);
m_rOuterFace.DrawEllipse( pA->GetRect() );
}
break;
case MetaActionType::ARC:
{
const MetaArcAction* pA = static_cast<const MetaArcAction*>(pAction);
m_rOuterFace.DrawArc( pA->GetRect(), pA->GetStartPoint(), pA->GetEndPoint() );
}
break;
case MetaActionType::PIE:
{
const MetaArcAction* pA = static_cast<const MetaArcAction*>(pAction);
m_rOuterFace.DrawPie( pA->GetRect(), pA->GetStartPoint(), pA->GetEndPoint() );
}
break;
case MetaActionType::CHORD:
{
const MetaChordAction* pA = static_cast<const MetaChordAction*>(pAction);
m_rOuterFace.DrawChord( pA->GetRect(), pA->GetStartPoint(), pA->GetEndPoint() );
}
break;
case MetaActionType::POLYGON:
{
const MetaPolygonAction* pA = static_cast<const MetaPolygonAction*>(pAction);
m_rOuterFace.DrawPolygon( pA->GetPolygon() );
}
break;
case MetaActionType::POLYLINE:
{
const MetaPolyLineAction* pA = static_cast<const MetaPolyLineAction*>(pAction);
if ( pA->GetLineInfo().IsDefault() )
m_rOuterFace.DrawPolyLine( pA->GetPolygon() );
else
m_rOuterFace.DrawPolyLine( pA->GetPolygon(), pA->GetLineInfo() );
}
break;
case MetaActionType::POLYPOLYGON:
{
const MetaPolyPolygonAction* pA = static_cast<const MetaPolyPolygonAction*>(pAction);
m_rOuterFace.DrawPolyPolygon( pA->GetPolyPolygon() );
}
break;
case MetaActionType::GRADIENT:
{
const MetaGradientAction* pA = static_cast<const MetaGradientAction*>(pAction);
const Gradient& rGradient = pA->GetGradient();
if (lcl_canUsePDFAxialShading(rGradient))
{
m_rOuterFace.DrawGradient( pA->GetRect(), rGradient );
}
else
{
const tools::PolyPolygon aPolyPoly( pA->GetRect() );
implWriteGradient( aPolyPoly, rGradient, pDummyVDev, i_rContext );
}
}
break;
case MetaActionType::GRADIENTEX:
{
const MetaGradientExAction* pA = static_cast<const MetaGradientExAction*>(pAction);
const Gradient& rGradient = pA->GetGradient();
if (lcl_canUsePDFAxialShading(rGradient))
m_rOuterFace.DrawGradient( pA->GetPolyPolygon(), rGradient );
else
implWriteGradient( pA->GetPolyPolygon(), rGradient, pDummyVDev, i_rContext );
}
break;
case MetaActionType::HATCH:
{
const MetaHatchAction* pA = static_cast<const MetaHatchAction*>(pAction);
m_rOuterFace.DrawHatch( pA->GetPolyPolygon(), pA->GetHatch() );
}
break;
case MetaActionType::Transparent:
{
const MetaTransparentAction* pA = static_cast<const MetaTransparentAction*>(pAction);
m_rOuterFace.DrawTransparent( pA->GetPolyPolygon(), pA->GetTransparence() );
}
break;
case MetaActionType::FLOATTRANSPARENT:
{
const MetaFloatTransparentAction* pA = static_cast<const MetaFloatTransparentAction*>(pAction);
GDIMetaFile aTmpMtf( pA->GetGDIMetaFile() );
const Point& rPos = pA->GetPoint();
const Size& rSize= pA->GetSize();
const Gradient& rTransparenceGradient = pA->GetGradient();
// special case constant alpha value
if( rTransparenceGradient.GetStartColor() == rTransparenceGradient.GetEndColor() )
{
const Color aTransCol( rTransparenceGradient.GetStartColor() );
const sal_uInt16 nTransPercent = aTransCol.GetLuminance() * 100 / 255;
m_rOuterFace.BeginTransparencyGroup();
// tdf#138826 adjust the aTmpMtf to start at rPos (see also #i112076#)
Point aMtfOrigin(aTmpMtf.GetPrefMapMode().GetOrigin());
if (rPos != aMtfOrigin)
aTmpMtf.Move(rPos.X() - aMtfOrigin.X(), rPos.Y() - aMtfOrigin.Y());
playMetafile( aTmpMtf, nullptr, i_rContext, pDummyVDev );
m_rOuterFace.EndTransparencyGroup( tools::Rectangle( rPos, rSize ), nTransPercent );
}
else
{
const Size aDstSizeTwip( pDummyVDev->PixelToLogic(pDummyVDev->LogicToPixel(rSize), MapMode(MapUnit::MapTwip)) );
// i#115962# Always use at least 300 DPI for bitmap conversion of transparence gradients,
// else the quality is not acceptable (see bugdoc as example)
sal_Int32 nMaxBmpDPI(300);
if( i_rContext.m_nMaxImageResolution > 50 )
{
if ( nMaxBmpDPI > i_rContext.m_nMaxImageResolution )
nMaxBmpDPI = i_rContext.m_nMaxImageResolution;
}
const sal_Int32 nPixelX = o3tl::convert<double>(aDstSizeTwip.Width(), o3tl::Length::twip, o3tl::Length::in) * nMaxBmpDPI;
const sal_Int32 nPixelY = o3tl::convert<double>(aDstSizeTwip.Height(), o3tl::Length::twip, o3tl::Length::in) * nMaxBmpDPI;
if ( nPixelX && nPixelY )
{
Size aDstSizePixel( nPixelX, nPixelY );
ScopedVclPtrInstance<VirtualDevice> xVDev(DeviceFormat::WITH_ALPHA);
if( xVDev->SetOutputSizePixel( aDstSizePixel, true, true ) )
{
Point aPoint;
MapMode aMapMode( pDummyVDev->GetMapMode() );
aMapMode.SetOrigin( aPoint );
xVDev->SetMapMode( aMapMode );
const bool bVDevOldMap = xVDev->IsMapModeEnabled();
Size aDstSize( xVDev->PixelToLogic( aDstSizePixel ) );
Point aMtfOrigin( aTmpMtf.GetPrefMapMode().GetOrigin() );
if ( aMtfOrigin.X() || aMtfOrigin.Y() )
aTmpMtf.Move( -aMtfOrigin.X(), -aMtfOrigin.Y() );
double fScaleX = static_cast<double>(aDstSize.Width()) / static_cast<double>(aTmpMtf.GetPrefSize().Width());
double fScaleY = static_cast<double>(aDstSize.Height()) / static_cast<double>(aTmpMtf.GetPrefSize().Height());
if( fScaleX != 1.0 || fScaleY != 1.0 )
aTmpMtf.Scale( fScaleX, fScaleY );
aTmpMtf.SetPrefMapMode( aMapMode );
// create paint bitmap
aTmpMtf.WindStart();
aTmpMtf.Play(*xVDev, aPoint, aDstSize);
aTmpMtf.WindStart();
xVDev->EnableMapMode( false );
BitmapEx aPaint = xVDev->GetBitmapEx(aPoint, 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( aPoint, aDstSize ), rTransparenceGradient );
xVDev->SetDrawMode( DrawModeFlags::Default );
xVDev->EnableMapMode( false );
AlphaMask aAlpha(xVDev->GetBitmap(Point(), xVDev->GetOutputSizePixel()));
const AlphaMask& aPaintAlpha(aPaint.GetAlphaMask());
// The alpha mask is inverted from what is
// expected so invert it again. To test this
// code, export to PDF the transparent shapes,
// gradients, and images in the documents
// attached to the following bug reports:
// https://bugs.documentfoundation.org/show_bug.cgi?id=155912
// https://bugs.documentfoundation.org/show_bug.cgi?id=156630
aAlpha.Invert(); // convert to alpha
aAlpha.BlendWith(aPaintAlpha);
#if HAVE_FEATURE_SKIA
#if OSL_DEBUG_LEVEL > 0
// In release builds, we always invert
// regardless of whether Skia is enabled or not.
// But in debug builds, we can't invert when
// Skia is enabled.
if ( !SkiaHelper::isVCLSkiaEnabled() )
#endif
#endif
{
// When Skia is disabled, the alpha mask
// must be inverted a second time. To test
// this code, export the following
// document to PDF:
// https://bugs.documentfoundation.org/attachment.cgi?id=188084
aAlpha.Invert(); // convert to alpha
}
xVDev.disposeAndClear();
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( rPos, rSize, BitmapEx( aPaint.GetBitmap(), aAlpha ), aGraphic, pDummyVDev, i_rContext );
}
}
}
}
break;
case MetaActionType::EPS:
{
const MetaEPSAction* pA = static_cast<const MetaEPSAction*>(pAction);
const GDIMetaFile& aSubstitute( pA->GetSubstitute() );
m_rOuterFace.Push();
pDummyVDev->Push();
MapMode aMapMode( aSubstitute.GetPrefMapMode() );
Size aOutSize( OutputDevice::LogicToLogic( pA->GetSize(), pDummyVDev->GetMapMode(), aMapMode ) );
aMapMode.SetScaleX( Fraction( aOutSize.Width(), aSubstitute.GetPrefSize().Width() ) );
aMapMode.SetScaleY( Fraction( aOutSize.Height(), aSubstitute.GetPrefSize().Height() ) );
aMapMode.SetOrigin( OutputDevice::LogicToLogic( pA->GetPoint(), pDummyVDev->GetMapMode(), aMapMode ) );
m_rOuterFace.SetMapMode( aMapMode );
pDummyVDev->SetMapMode( aMapMode );
playMetafile( aSubstitute, nullptr, i_rContext, pDummyVDev );
pDummyVDev->Pop();
m_rOuterFace.Pop();
}
break;
case MetaActionType::COMMENT:
if( ! i_rContext.m_bTransparenciesWereRemoved )
{
const MetaCommentAction* pA = static_cast<const MetaCommentAction*>(pAction);
if( pA->GetComment().equalsIgnoreAsciiCase("XGRAD_SEQ_BEGIN"))
{
const MetaGradientExAction* pGradAction = nullptr;
bool bDone = false;
while( !bDone && ( ++i < nCount ) )
{
pAction = aMtf.GetAction( i );
if( pAction->GetType() == MetaActionType::GRADIENTEX )
pGradAction = static_cast<const MetaGradientExAction*>(pAction);
else if( ( pAction->GetType() == MetaActionType::COMMENT ) &&
( static_cast<const MetaCommentAction*>(pAction)->GetComment().equalsIgnoreAsciiCase("XGRAD_SEQ_END")) )
{
bDone = true;
}
}
if( pGradAction )
{
if (lcl_canUsePDFAxialShading(pGradAction->GetGradient()))
{
m_rOuterFace.DrawGradient( pGradAction->GetPolyPolygon(), pGradAction->GetGradient() );
}
else
{
implWriteGradient( pGradAction->GetPolyPolygon(), pGradAction->GetGradient(), pDummyVDev, i_rContext );
}
}
}
else
{
const sal_uInt8* pData = pA->GetData();
if ( pData )
{
SvMemoryStream aMemStm( const_cast<sal_uInt8 *>(pData), pA->GetDataSize(), StreamMode::READ );
bool bSkipSequence = false;
OString sSeqEnd;
if( pA->GetComment() == "XPATHSTROKE_SEQ_BEGIN" )
{
sSeqEnd = "XPATHSTROKE_SEQ_END"_ostr;
SvtGraphicStroke aStroke;
ReadSvtGraphicStroke( aMemStm, aStroke );
tools::Polygon aPath;
aStroke.getPath( aPath );
tools::PolyPolygon aStartArrow;
tools::PolyPolygon aEndArrow;
double fTransparency( aStroke.getTransparency() );
double fStrokeWidth( aStroke.getStrokeWidth() );
SvtGraphicStroke::DashArray aDashArray;
aStroke.getStartArrow( aStartArrow );
aStroke.getEndArrow( aEndArrow );
aStroke.getDashArray( aDashArray );
bSkipSequence = true;
if ( aStartArrow.Count() || aEndArrow.Count() )
bSkipSequence = false;
if ( !aDashArray.empty() && ( fStrokeWidth != 0.0 ) && ( fTransparency == 0.0 ) )
bSkipSequence = false;
if ( bSkipSequence )
{
PDFWriter::ExtLineInfo aInfo;
aInfo.m_fLineWidth = fStrokeWidth;
aInfo.m_fTransparency = fTransparency;
aInfo.m_fMiterLimit = aStroke.getMiterLimit();
switch( aStroke.getCapType() )
{
default:
case SvtGraphicStroke::capButt: aInfo.m_eCap = PDFWriter::capButt;break;
case SvtGraphicStroke::capRound: aInfo.m_eCap = PDFWriter::capRound;break;
case SvtGraphicStroke::capSquare: aInfo.m_eCap = PDFWriter::capSquare;break;
}
switch( aStroke.getJoinType() )
{
default:
case SvtGraphicStroke::joinMiter: aInfo.m_eJoin = PDFWriter::joinMiter;break;
case SvtGraphicStroke::joinRound: aInfo.m_eJoin = PDFWriter::joinRound;break;
case SvtGraphicStroke::joinBevel: aInfo.m_eJoin = PDFWriter::joinBevel;break;
case SvtGraphicStroke::joinNone:
aInfo.m_eJoin = PDFWriter::joinMiter;
aInfo.m_fMiterLimit = 0.0;
break;
}
aInfo.m_aDashArray = std::move(aDashArray);
if(SvtGraphicStroke::joinNone == aStroke.getJoinType()
&& fStrokeWidth > 0.0)
{
// emulate no edge rounding by handling single edges
const sal_uInt16 nPoints(aPath.GetSize());
const bool bCurve(aPath.HasFlags());
for(sal_uInt16 a(0); a + 1 < nPoints; a++)
{
if(bCurve
&& PolyFlags::Normal != aPath.GetFlags(a + 1)
&& a + 2 < nPoints
&& PolyFlags::Normal != aPath.GetFlags(a + 2)
&& a + 3 < nPoints)
{
const tools::Polygon aSnippet(4,
aPath.GetConstPointAry() + a,
aPath.GetConstFlagAry() + a);
m_rOuterFace.DrawPolyLine( aSnippet, aInfo );
a += 2;
}
else
{
const tools::Polygon aSnippet(2,
aPath.GetConstPointAry() + a);
m_rOuterFace.DrawPolyLine( aSnippet, aInfo );
}
}
}
else
{
m_rOuterFace.DrawPolyLine( aPath, aInfo );
}
}
}
else if ( pA->GetComment() == "XPATHFILL_SEQ_BEGIN" )
{
sSeqEnd = "XPATHFILL_SEQ_END"_ostr;
SvtGraphicFill aFill;
ReadSvtGraphicFill( aMemStm, aFill );
if ( ( aFill.getFillType() == SvtGraphicFill::fillSolid ) && ( aFill.getFillRule() == SvtGraphicFill::fillEvenOdd ) )
{
double fTransparency = aFill.getTransparency();
if ( fTransparency == 0.0 )
{
tools::PolyPolygon aPath;
aFill.getPath( aPath );
bSkipSequence = true;
m_rOuterFace.DrawPolyPolygon( aPath );
}
else if ( fTransparency == 1.0 )
bSkipSequence = true;
}
}
if ( bSkipSequence )
{
while( ++i < nCount )
{
pAction = aMtf.GetAction( i );
if ( pAction->GetType() == MetaActionType::COMMENT )
{
OString sComment( static_cast<const MetaCommentAction*>(pAction)->GetComment() );
if (sComment == sSeqEnd)
break;
}
// #i44496#
// the replacement action for stroke is a filled rectangle
// the set fillcolor of the replacement is part of the graphics
// state and must not be skipped
else if( pAction->GetType() == MetaActionType::FILLCOLOR )
{
const MetaFillColorAction* pMA = static_cast<const MetaFillColorAction*>(pAction);
if( pMA->IsSetting() )
m_rOuterFace.SetFillColor( pMA->GetColor() );
else
m_rOuterFace.SetFillColor();
}
}
}
}
}
}
break;
case MetaActionType::BMP:
{
const MetaBmpAction* pA = static_cast<const MetaBmpAction*>(pAction);
BitmapEx aBitmapEx( pA->GetBitmap() );
Size aSize( OutputDevice::LogicToLogic( aBitmapEx.GetPrefSize(),
aBitmapEx.GetPrefMapMode(), pDummyVDev->GetMapMode() ) );
if( ! ( aSize.Width() && aSize.Height() ) )
aSize = pDummyVDev->PixelToLogic( aBitmapEx.GetSizePixel() );
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( pA->GetPoint(), aSize, aBitmapEx, aGraphic, pDummyVDev, i_rContext );
}
break;
case MetaActionType::BMPSCALE:
{
const MetaBmpScaleAction* pA = static_cast<const MetaBmpScaleAction*>(pAction);
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( pA->GetPoint(), pA->GetSize(), BitmapEx( pA->GetBitmap() ), aGraphic, pDummyVDev, i_rContext );
}
break;
case MetaActionType::BMPSCALEPART:
{
const MetaBmpScalePartAction* pA = static_cast<const MetaBmpScalePartAction*>(pAction);
BitmapEx aBitmapEx( pA->GetBitmap() );
aBitmapEx.Crop( tools::Rectangle( pA->GetSrcPoint(), pA->GetSrcSize() ) );
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( pA->GetDestPoint(), pA->GetDestSize(), aBitmapEx, aGraphic, pDummyVDev, i_rContext );
}
break;
case MetaActionType::BMPEX:
{
const MetaBmpExAction* pA = static_cast<const MetaBmpExAction*>(pAction);
// The alpha mask is inverted from what is
// expected so invert it again. To test this
// code, export to PDF the transparent shapes,
// gradients, and images in the documents
// attached to the following bug reports:
// https://bugs.documentfoundation.org/show_bug.cgi?id=155912
// https://bugs.documentfoundation.org/show_bug.cgi?id=156630
BitmapEx aBitmapEx( pA->GetBitmapEx() );
if ( aBitmapEx.IsAlpha())
{
AlphaMask aAlpha = aBitmapEx.GetAlphaMask();
aAlpha.Invert();
aBitmapEx = BitmapEx(aBitmapEx.GetBitmap(), aAlpha);
}
Size aSize( OutputDevice::LogicToLogic( aBitmapEx.GetPrefSize(),
aBitmapEx.GetPrefMapMode(), pDummyVDev->GetMapMode() ) );
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( pA->GetPoint(), aSize, aBitmapEx, aGraphic, pDummyVDev, i_rContext );
}
break;
case MetaActionType::BMPEXSCALE:
{
const MetaBmpExScaleAction* pA = static_cast<const MetaBmpExScaleAction*>(pAction);
// The alpha mask is inverted from what is
// expected so invert it again. To test this
// code, export to PDF the transparent shapes,
// gradients, and images in the documents
// attached to the following bug reports:
// https://bugs.documentfoundation.org/show_bug.cgi?id=155912
// https://bugs.documentfoundation.org/show_bug.cgi?id=156630
BitmapEx aBitmapEx( pA->GetBitmapEx() );
if ( aBitmapEx.IsAlpha())
{
AlphaMask aAlpha = aBitmapEx.GetAlphaMask();
aAlpha.Invert();
aBitmapEx = BitmapEx(aBitmapEx.GetBitmap(), aAlpha);
}
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( pA->GetPoint(), pA->GetSize(), aBitmapEx, aGraphic, pDummyVDev, i_rContext );
}
break;
case MetaActionType::BMPEXSCALEPART:
{
const MetaBmpExScalePartAction* pA = static_cast<const MetaBmpExScalePartAction*>(pAction);
// The alpha mask is inverted from what is
// expected so invert it again. To test this
// code, export to PDF the transparent shapes,
// gradients, and images in the documents
// attached to the following bug reports:
// https://bugs.documentfoundation.org/show_bug.cgi?id=155912
// https://bugs.documentfoundation.org/show_bug.cgi?id=156630
BitmapEx aBitmapEx( pA->GetBitmapEx() );
if ( aBitmapEx.IsAlpha())
{
AlphaMask aAlpha = aBitmapEx.GetAlphaMask();
aAlpha.Invert();
aBitmapEx = BitmapEx(aBitmapEx.GetBitmap(), aAlpha);
}
aBitmapEx.Crop( tools::Rectangle( pA->GetSrcPoint(), pA->GetSrcSize() ) );
Graphic aGraphic = i_pOutDevData ? i_pOutDevData->GetCurrentGraphic() : Graphic();
implWriteBitmapEx( pA->GetDestPoint(), pA->GetDestSize(), aBitmapEx, aGraphic, pDummyVDev, i_rContext );
}
break;
case MetaActionType::MASK:
case MetaActionType::MASKSCALE:
case MetaActionType::MASKSCALEPART:
{
SAL_WARN( "vcl", "MetaMask...Action not supported yet" );
}
break;
case MetaActionType::TEXT:
{
const MetaTextAction* pA = static_cast<const MetaTextAction*>(pAction);
m_rOuterFace.DrawText( pA->GetPoint(), pA->GetText().copy( pA->GetIndex(), std::min<sal_Int32>(pA->GetText().getLength() - pA->GetIndex(), pA->GetLen()) ) );
}
break;
case MetaActionType::TEXTRECT:
{
const MetaTextRectAction* pA = static_cast<const MetaTextRectAction*>(pAction);
m_rOuterFace.DrawText( pA->GetRect(), pA->GetText(), pA->GetStyle() );
}
break;
case MetaActionType::TEXTARRAY:
{
const MetaTextArrayAction* pA = static_cast<const MetaTextArrayAction*>(pAction);
m_rOuterFace.DrawTextArray(pA->GetPoint(), pA->GetText(), pA->GetDXArray(),
pA->GetKashidaArray(), pA->GetIndex(), pA->GetLen(),
pA->GetLayoutContextIndex(),
pA->GetLayoutContextLen());
}
break;
case MetaActionType::STRETCHTEXT:
{
const MetaStretchTextAction* pA = static_cast<const MetaStretchTextAction*>(pAction);
m_rOuterFace.DrawStretchText( pA->GetPoint(), pA->GetWidth(), pA->GetText(), pA->GetIndex(), pA->GetLen() );
}
break;
case MetaActionType::TEXTLINE:
{
const MetaTextLineAction* pA = static_cast<const MetaTextLineAction*>(pAction);
m_rOuterFace.DrawTextLine( pA->GetStartPoint(), pA->GetWidth(), pA->GetStrikeout(), pA->GetUnderline(), pA->GetOverline() );
}
break;
case MetaActionType::CLIPREGION:
{
const MetaClipRegionAction* pA = static_cast<const MetaClipRegionAction*>(pAction);
if( pA->IsClipping() )
{
if( pA->GetRegion().IsEmpty() )
m_rOuterFace.SetClipRegion( basegfx::B2DPolyPolygon() );
else
{
const vcl::Region& aReg( pA->GetRegion() );
m_rOuterFace.SetClipRegion( aReg.GetAsB2DPolyPolygon() );
}
}
else
m_rOuterFace.SetClipRegion();
}
break;
case MetaActionType::ISECTRECTCLIPREGION:
{
const MetaISectRectClipRegionAction* pA = static_cast<const MetaISectRectClipRegionAction*>(pAction);
m_rOuterFace.IntersectClipRegion( pA->GetRect() );
}
break;
case MetaActionType::ISECTREGIONCLIPREGION:
{
const MetaISectRegionClipRegionAction* pA = static_cast<const MetaISectRegionClipRegionAction*>(pAction);
const vcl::Region& aReg( pA->GetRegion() );
m_rOuterFace.IntersectClipRegion( aReg.GetAsB2DPolyPolygon() );
}
break;
case MetaActionType::MOVECLIPREGION:
{
const MetaMoveClipRegionAction* pA = static_cast<const MetaMoveClipRegionAction*>(pAction);
m_rOuterFace.MoveClipRegion( pA->GetHorzMove(), pA->GetVertMove() );
}
break;
case MetaActionType::MAPMODE:
{
const_cast< MetaAction* >( pAction )->Execute( pDummyVDev );
m_rOuterFace.SetMapMode( pDummyVDev->GetMapMode() );
}
break;
case MetaActionType::LINECOLOR:
{
const MetaLineColorAction* pA = static_cast<const MetaLineColorAction*>(pAction);
if( pA->IsSetting() )
m_rOuterFace.SetLineColor( pA->GetColor() );
else
m_rOuterFace.SetLineColor();
}
break;
case MetaActionType::FILLCOLOR:
{
const MetaFillColorAction* pA = static_cast<const MetaFillColorAction*>(pAction);
if( pA->IsSetting() )
m_rOuterFace.SetFillColor( pA->GetColor() );
else
m_rOuterFace.SetFillColor();
}
break;
case MetaActionType::TEXTLINECOLOR:
{
const MetaTextLineColorAction* pA = static_cast<const MetaTextLineColorAction*>(pAction);
if( pA->IsSetting() )
m_rOuterFace.SetTextLineColor( pA->GetColor() );
else
m_rOuterFace.SetTextLineColor();
}
break;
case MetaActionType::OVERLINECOLOR:
{
const MetaOverlineColorAction* pA = static_cast<const MetaOverlineColorAction*>(pAction);
if( pA->IsSetting() )
m_rOuterFace.SetOverlineColor( pA->GetColor() );
else
m_rOuterFace.SetOverlineColor();
}
break;
case MetaActionType::TEXTFILLCOLOR:
{
const MetaTextFillColorAction* pA = static_cast<const MetaTextFillColorAction*>(pAction);
if( pA->IsSetting() )
m_rOuterFace.SetTextFillColor( pA->GetColor() );
else
m_rOuterFace.SetTextFillColor();
}
break;
case MetaActionType::TEXTCOLOR:
{
const MetaTextColorAction* pA = static_cast<const MetaTextColorAction*>(pAction);
m_rOuterFace.SetTextColor( pA->GetColor() );
}
break;
case MetaActionType::TEXTALIGN:
{
const MetaTextAlignAction* pA = static_cast<const MetaTextAlignAction*>(pAction);
m_rOuterFace.SetTextAlign( pA->GetTextAlign() );
}
break;
case MetaActionType::FONT:
{
const MetaFontAction* pA = static_cast<const MetaFontAction*>(pAction);
m_rOuterFace.SetFont( pA->GetFont() );
}
break;
case MetaActionType::PUSH:
{
const MetaPushAction* pA = static_cast<const MetaPushAction*>(pAction);
pDummyVDev->Push( pA->GetFlags() );
m_rOuterFace.Push( pA->GetFlags() );
}
break;
case MetaActionType::POP:
{
pDummyVDev->Pop();
m_rOuterFace.Pop();
}
break;
case MetaActionType::LAYOUTMODE:
{
const MetaLayoutModeAction* pA = static_cast<const MetaLayoutModeAction*>(pAction);
m_rOuterFace.SetLayoutMode( pA->GetLayoutMode() );
}
break;
case MetaActionType::TEXTLANGUAGE:
{
const MetaTextLanguageAction* pA = static_cast<const MetaTextLanguageAction*>(pAction);
m_rOuterFace.SetDigitLanguage( pA->GetTextLanguage() );
}
break;
case MetaActionType::WALLPAPER:
{
const MetaWallpaperAction* pA = static_cast<const MetaWallpaperAction*>(pAction);
m_rOuterFace.DrawWallpaper( pA->GetRect(), pA->GetWallpaper() );
}
break;
case MetaActionType::RASTEROP:
case MetaActionType::REFPOINT:
{
// !!! >>> we don't want to support this actions
}
break;
default:
// #i24604# Made assertion fire only once per
// metafile. The asserted actions here are all
// deprecated
if( !bAssertionFired )
{
bAssertionFired = true;
SAL_WARN( "vcl", "PDFExport::ImplWriteActions: deprecated and unsupported MetaAction encountered " << static_cast<int>(nType) );
}
break;
}
i++;
}
}
}
// Encryption methods
void PDFWriterImpl::checkAndEnableStreamEncryption(sal_Int32 nObject)
{
if (!m_aContext.Encryption.Encrypt() || !m_pPDFEncryptor)
return;
m_pPDFEncryptor->enableStreamEncryption();
m_pPDFEncryptor->setupEncryption(m_aContext.Encryption.EncryptionKey, nObject);
}
void PDFWriterImpl::disableStreamEncryption()
{
if (m_pPDFEncryptor)
m_pPDFEncryptor->disableStreamEncryption();
}
void PDFWriterImpl::enableStringEncryption(sal_Int32 nObject)
{
if (!m_aContext.Encryption.Encrypt() || !m_pPDFEncryptor)
return;
m_pPDFEncryptor->setupEncryption(m_aContext.Encryption.EncryptionKey, nObject);
}
const tools::Long unsetRun[256] =
{
8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, /* 0x00 - 0x0f */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x10 - 0x1f */
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0x20 - 0x2f */
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0x30 - 0x3f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x40 - 0x4f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x50 - 0x5f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x60 - 0x6f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x70 - 0x7f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 - 0x8f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 - 0x9f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 - 0xaf */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 - 0xbf */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 - 0xcf */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 - 0xdf */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 - 0xef */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xf0 - 0xff */
};
const tools::Long setRun[256] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 - 0x0f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 - 0x1f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 - 0x2f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x30 - 0x3f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x40 - 0x4f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 - 0x5f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60 - 0x6f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 - 0x7f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x80 - 0x8f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x90 - 0x9f */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0xa0 - 0xaf */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0xb0 - 0xbf */
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0xc0 - 0xcf */
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0xd0 - 0xdf */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xe0 - 0xef */
4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 8, /* 0xf0 - 0xff */
};
static bool isSet( const Scanline i_pLine, tools::Long i_nIndex )
{
return (i_pLine[ i_nIndex/8 ] & (0x80 >> (i_nIndex&7))) != 0;
}
static tools::Long findBitRunImpl( const Scanline i_pLine, tools::Long i_nStartIndex, tools::Long i_nW, bool i_bSet )
{
tools::Long nIndex = i_nStartIndex;
if( nIndex < i_nW )
{
const sal_uInt8 * pByte = i_pLine + (nIndex/8);
sal_uInt8 nByte = *pByte;
// run up to byte boundary
tools::Long nBitInByte = (nIndex & 7);
if( nBitInByte )
{
sal_uInt8 nMask = 0x80 >> nBitInByte;
while( nBitInByte != 8 )
{
if( (nByte & nMask) != (i_bSet ? nMask : 0) )
return std::min(nIndex, i_nW);
nMask = nMask >> 1;
nBitInByte++;
nIndex++;
}
if( nIndex < i_nW )
{
pByte++;
nByte = *pByte;
}
}
sal_uInt8 nRunByte;
const tools::Long* pRunTable;
if( i_bSet )
{
nRunByte = 0xff;
pRunTable = setRun;
}
else
{
nRunByte = 0;
pRunTable = unsetRun;
}
if( nIndex < i_nW )
{
while( nByte == nRunByte )
{
nIndex += 8;
if (nIndex >= i_nW)
break;
pByte++;
nByte = *pByte;
}
}
if( nIndex < i_nW )
{
nIndex += pRunTable[nByte];
}
}
return std::min(nIndex, i_nW);
}
static tools::Long findBitRun(const Scanline i_pLine, tools::Long i_nStartIndex, tools::Long i_nW, bool i_bSet)
{
if (i_nStartIndex < 0)
return i_nW;
return findBitRunImpl(i_pLine, i_nStartIndex, i_nW, i_bSet);
}
static tools::Long findBitRun(const Scanline i_pLine, tools::Long i_nStartIndex, tools::Long i_nW)
{
if (i_nStartIndex < 0)
return i_nW;
const bool bSet = i_nStartIndex < i_nW && isSet(i_pLine, i_nStartIndex);
return findBitRunImpl(i_pLine, i_nStartIndex, i_nW, bSet);
}
struct BitStreamState
{
sal_uInt8 mnBuffer;
sal_uInt32 mnNextBitPos;
BitStreamState()
: mnBuffer( 0 )
, mnNextBitPos( 8 )
{
}
const sal_uInt8& getByte() const { return mnBuffer; }
void flush() { mnNextBitPos = 8; mnBuffer = 0; }
};
void PDFWriterImpl::putG4Bits( sal_uInt32 i_nLength, sal_uInt32 i_nCode, BitStreamState& io_rState )
{
while( i_nLength > io_rState.mnNextBitPos )
{
io_rState.mnBuffer |= static_cast<sal_uInt8>( i_nCode >> (i_nLength - io_rState.mnNextBitPos) );
i_nLength -= io_rState.mnNextBitPos;
writeBufferBytes( &io_rState.getByte(), 1 );
io_rState.flush();
}
assert(i_nLength < 9);
static const unsigned int msbmask[9] = { 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
io_rState.mnBuffer |= static_cast<sal_uInt8>( (i_nCode & msbmask[i_nLength]) << (io_rState.mnNextBitPos - i_nLength) );
io_rState.mnNextBitPos -= i_nLength;
if( io_rState.mnNextBitPos == 0 )
{
writeBufferBytes( &io_rState.getByte(), 1 );
io_rState.flush();
}
}
namespace {
struct PixelCode
{
sal_uInt32 mnEncodedPixels;
sal_uInt32 mnCodeBits;
sal_uInt32 mnCode;
};
}
const PixelCode WhitePixelCodes[] =
{
{ 0, 8, 0x35 }, // 0011 0101
{ 1, 6, 0x7 }, // 0001 11
{ 2, 4, 0x7 }, // 0111
{ 3, 4, 0x8 }, // 1000
{ 4, 4, 0xB }, // 1011
{ 5, 4, 0xC }, // 1100
{ 6, 4, 0xE }, // 1110
{ 7, 4, 0xF }, // 1111
{ 8, 5, 0x13 }, // 1001 1
{ 9, 5, 0x14 }, // 1010 0
{ 10, 5, 0x7 }, // 0011 1
{ 11, 5, 0x8 }, // 0100 0
{ 12, 6, 0x8 }, // 0010 00
{ 13, 6, 0x3 }, // 0000 11
{ 14, 6, 0x34 }, // 1101 00
{ 15, 6, 0x35 }, // 1101 01
{ 16, 6, 0x2A }, // 1010 10
{ 17, 6, 0x2B }, // 1010 11
{ 18, 7, 0x27 }, // 0100 111
{ 19, 7, 0xC }, // 0001 100
{ 20, 7, 0x8 }, // 0001 000
{ 21, 7, 0x17 }, // 0010 111
{ 22, 7, 0x3 }, // 0000 011
{ 23, 7, 0x4 }, // 0000 100
{ 24, 7, 0x28 }, // 0101 000
{ 25, 7, 0x2B }, // 0101 011
{ 26, 7, 0x13 }, // 0010 011
{ 27, 7, 0x24 }, // 0100 100
{ 28, 7, 0x18 }, // 0011 000
{ 29, 8, 0x2 }, // 0000 0010
{ 30, 8, 0x3 }, // 0000 0011
{ 31, 8, 0x1A }, // 0001 1010
{ 32, 8, 0x1B }, // 0001 1011
{ 33, 8, 0x12 }, // 0001 0010
{ 34, 8, 0x13 }, // 0001 0011
{ 35, 8, 0x14 }, // 0001 0100
{ 36, 8, 0x15 }, // 0001 0101
{ 37, 8, 0x16 }, // 0001 0110
{ 38, 8, 0x17 }, // 0001 0111
{ 39, 8, 0x28 }, // 0010 1000
{ 40, 8, 0x29 }, // 0010 1001
{ 41, 8, 0x2A }, // 0010 1010
{ 42, 8, 0x2B }, // 0010 1011
{ 43, 8, 0x2C }, // 0010 1100
{ 44, 8, 0x2D }, // 0010 1101
{ 45, 8, 0x4 }, // 0000 0100
{ 46, 8, 0x5 }, // 0000 0101
{ 47, 8, 0xA }, // 0000 1010
{ 48, 8, 0xB }, // 0000 1011
{ 49, 8, 0x52 }, // 0101 0010
{ 50, 8, 0x53 }, // 0101 0011
{ 51, 8, 0x54 }, // 0101 0100
{ 52, 8, 0x55 }, // 0101 0101
{ 53, 8, 0x24 }, // 0010 0100
{ 54, 8, 0x25 }, // 0010 0101
{ 55, 8, 0x58 }, // 0101 1000
{ 56, 8, 0x59 }, // 0101 1001
{ 57, 8, 0x5A }, // 0101 1010
{ 58, 8, 0x5B }, // 0101 1011
{ 59, 8, 0x4A }, // 0100 1010
{ 60, 8, 0x4B }, // 0100 1011
{ 61, 8, 0x32 }, // 0011 0010
{ 62, 8, 0x33 }, // 0011 0011
{ 63, 8, 0x34 }, // 0011 0100
{ 64, 5, 0x1B }, // 1101 1
{ 128, 5, 0x12 }, // 1001 0
{ 192, 6, 0x17 }, // 0101 11
{ 256, 7, 0x37 }, // 0110 111
{ 320, 8, 0x36 }, // 0011 0110
{ 384, 8, 0x37 }, // 0011 0111
{ 448, 8, 0x64 }, // 0110 0100
{ 512, 8, 0x65 }, // 0110 0101
{ 576, 8, 0x68 }, // 0110 1000
{ 640, 8, 0x67 }, // 0110 0111
{ 704, 9, 0xCC }, // 0110 0110 0
{ 768, 9, 0xCD }, // 0110 0110 1
{ 832, 9, 0xD2 }, // 0110 1001 0
{ 896, 9, 0xD3 }, // 0110 1001 1
{ 960, 9, 0xD4 }, // 0110 1010 0
{ 1024, 9, 0xD5 }, // 0110 1010 1
{ 1088, 9, 0xD6 }, // 0110 1011 0
{ 1152, 9, 0xD7 }, // 0110 1011 1
{ 1216, 9, 0xD8 }, // 0110 1100 0
{ 1280, 9, 0xD9 }, // 0110 1100 1
{ 1344, 9, 0xDA }, // 0110 1101 0
{ 1408, 9, 0xDB }, // 0110 1101 1
{ 1472, 9, 0x98 }, // 0100 1100 0
{ 1536, 9, 0x99 }, // 0100 1100 1
{ 1600, 9, 0x9A }, // 0100 1101 0
{ 1664, 6, 0x18 }, // 0110 00
{ 1728, 9, 0x9B }, // 0100 1101 1
{ 1792, 11, 0x8 }, // 0000 0001 000
{ 1856, 11, 0xC }, // 0000 0001 100
{ 1920, 11, 0xD }, // 0000 0001 101
{ 1984, 12, 0x12 }, // 0000 0001 0010
{ 2048, 12, 0x13 }, // 0000 0001 0011
{ 2112, 12, 0x14 }, // 0000 0001 0100
{ 2176, 12, 0x15 }, // 0000 0001 0101
{ 2240, 12, 0x16 }, // 0000 0001 0110
{ 2304, 12, 0x17 }, // 0000 0001 0111
{ 2368, 12, 0x1C }, // 0000 0001 1100
{ 2432, 12, 0x1D }, // 0000 0001 1101
{ 2496, 12, 0x1E }, // 0000 0001 1110
{ 2560, 12, 0x1F } // 0000 0001 1111
};
const PixelCode BlackPixelCodes[] =
{
{ 0, 10, 0x37 }, // 0000 1101 11
{ 1, 3, 0x2 }, // 010
{ 2, 2, 0x3 }, // 11
{ 3, 2, 0x2 }, // 10
{ 4, 3, 0x3 }, // 011
{ 5, 4, 0x3 }, // 0011
{ 6, 4, 0x2 }, // 0010
{ 7, 5, 0x3 }, // 0001 1
{ 8, 6, 0x5 }, // 0001 01
{ 9, 6, 0x4 }, // 0001 00
{ 10, 7, 0x4 }, // 0000 100
{ 11, 7, 0x5 }, // 0000 101
{ 12, 7, 0x7 }, // 0000 111
{ 13, 8, 0x4 }, // 0000 0100
{ 14, 8, 0x7 }, // 0000 0111
{ 15, 9, 0x18 }, // 0000 1100 0
{ 16, 10, 0x17 }, // 0000 0101 11
{ 17, 10, 0x18 }, // 0000 0110 00
{ 18, 10, 0x8 }, // 0000 0010 00
{ 19, 11, 0x67 }, // 0000 1100 111
{ 20, 11, 0x68 }, // 0000 1101 000
{ 21, 11, 0x6C }, // 0000 1101 100
{ 22, 11, 0x37 }, // 0000 0110 111
{ 23, 11, 0x28 }, // 0000 0101 000
{ 24, 11, 0x17 }, // 0000 0010 111
{ 25, 11, 0x18 }, // 0000 0011 000
{ 26, 12, 0xCA }, // 0000 1100 1010
{ 27, 12, 0xCB }, // 0000 1100 1011
{ 28, 12, 0xCC }, // 0000 1100 1100
{ 29, 12, 0xCD }, // 0000 1100 1101
{ 30, 12, 0x68 }, // 0000 0110 1000
{ 31, 12, 0x69 }, // 0000 0110 1001
{ 32, 12, 0x6A }, // 0000 0110 1010
{ 33, 12, 0x6B }, // 0000 0110 1011
{ 34, 12, 0xD2 }, // 0000 1101 0010
{ 35, 12, 0xD3 }, // 0000 1101 0011
{ 36, 12, 0xD4 }, // 0000 1101 0100
{ 37, 12, 0xD5 }, // 0000 1101 0101
{ 38, 12, 0xD6 }, // 0000 1101 0110
{ 39, 12, 0xD7 }, // 0000 1101 0111
{ 40, 12, 0x6C }, // 0000 0110 1100
{ 41, 12, 0x6D }, // 0000 0110 1101
{ 42, 12, 0xDA }, // 0000 1101 1010
{ 43, 12, 0xDB }, // 0000 1101 1011
{ 44, 12, 0x54 }, // 0000 0101 0100
{ 45, 12, 0x55 }, // 0000 0101 0101
{ 46, 12, 0x56 }, // 0000 0101 0110
{ 47, 12, 0x57 }, // 0000 0101 0111
{ 48, 12, 0x64 }, // 0000 0110 0100
{ 49, 12, 0x65 }, // 0000 0110 0101
{ 50, 12, 0x52 }, // 0000 0101 0010
{ 51, 12, 0x53 }, // 0000 0101 0011
{ 52, 12, 0x24 }, // 0000 0010 0100
{ 53, 12, 0x37 }, // 0000 0011 0111
{ 54, 12, 0x38 }, // 0000 0011 1000
{ 55, 12, 0x27 }, // 0000 0010 0111
{ 56, 12, 0x28 }, // 0000 0010 1000
{ 57, 12, 0x58 }, // 0000 0101 1000
{ 58, 12, 0x59 }, // 0000 0101 1001
{ 59, 12, 0x2B }, // 0000 0010 1011
{ 60, 12, 0x2C }, // 0000 0010 1100
{ 61, 12, 0x5A }, // 0000 0101 1010
{ 62, 12, 0x66 }, // 0000 0110 0110
{ 63, 12, 0x67 }, // 0000 0110 0111
{ 64, 10, 0xF }, // 0000 0011 11
{ 128, 12, 0xC8 }, // 0000 1100 1000
{ 192, 12, 0xC9 }, // 0000 1100 1001
{ 256, 12, 0x5B }, // 0000 0101 1011
{ 320, 12, 0x33 }, // 0000 0011 0011
{ 384, 12, 0x34 }, // 0000 0011 0100
{ 448, 12, 0x35 }, // 0000 0011 0101
{ 512, 13, 0x6C }, // 0000 0011 0110 0
{ 576, 13, 0x6D }, // 0000 0011 0110 1
{ 640, 13, 0x4A }, // 0000 0010 0101 0
{ 704, 13, 0x4B }, // 0000 0010 0101 1
{ 768, 13, 0x4C }, // 0000 0010 0110 0
{ 832, 13, 0x4D }, // 0000 0010 0110 1
{ 896, 13, 0x72 }, // 0000 0011 1001 0
{ 960, 13, 0x73 }, // 0000 0011 1001 1
{ 1024, 13, 0x74 }, // 0000 0011 1010 0
{ 1088, 13, 0x75 }, // 0000 0011 1010 1
{ 1152, 13, 0x76 }, // 0000 0011 1011 0
{ 1216, 13, 0x77 }, // 0000 0011 1011 1
{ 1280, 13, 0x52 }, // 0000 0010 1001 0
{ 1344, 13, 0x53 }, // 0000 0010 1001 1
{ 1408, 13, 0x54 }, // 0000 0010 1010 0
{ 1472, 13, 0x55 }, // 0000 0010 1010 1
{ 1536, 13, 0x5A }, // 0000 0010 1101 0
{ 1600, 13, 0x5B }, // 0000 0010 1101 1
{ 1664, 13, 0x64 }, // 0000 0011 0010 0
{ 1728, 13, 0x65 }, // 0000 0011 0010 1
{ 1792, 11, 0x8 }, // 0000 0001 000
{ 1856, 11, 0xC }, // 0000 0001 100
{ 1920, 11, 0xD }, // 0000 0001 101
{ 1984, 12, 0x12 }, // 0000 0001 0010
{ 2048, 12, 0x13 }, // 0000 0001 0011
{ 2112, 12, 0x14 }, // 0000 0001 0100
{ 2176, 12, 0x15 }, // 0000 0001 0101
{ 2240, 12, 0x16 }, // 0000 0001 0110
{ 2304, 12, 0x17 }, // 0000 0001 0111
{ 2368, 12, 0x1C }, // 0000 0001 1100
{ 2432, 12, 0x1D }, // 0000 0001 1101
{ 2496, 12, 0x1E }, // 0000 0001 1110
{ 2560, 12, 0x1F } // 0000 0001 1111
};
void PDFWriterImpl::putG4Span( tools::Long i_nSpan, bool i_bWhitePixel, BitStreamState& io_rState )
{
const PixelCode* pTable = i_bWhitePixel ? WhitePixelCodes : BlackPixelCodes;
// maximum encoded span is 2560 consecutive pixels
while( i_nSpan > 2623 )
{
// write 2560 bits, that is entry (63 + (2560 >> 6)) == 103 in the appropriate table
putG4Bits( pTable[103].mnCodeBits, pTable[103].mnCode, io_rState );
i_nSpan -= pTable[103].mnEncodedPixels;
}
// write multiples of 64 pixels up to 2560
if( i_nSpan > 63 )
{
sal_uInt32 nTabIndex = 63 + (i_nSpan >> 6);
OSL_ASSERT( pTable[nTabIndex].mnEncodedPixels == static_cast<sal_uInt32>(64*(i_nSpan >> 6)) );
putG4Bits( pTable[nTabIndex].mnCodeBits, pTable[nTabIndex].mnCode, io_rState );
i_nSpan -= pTable[nTabIndex].mnEncodedPixels;
}
putG4Bits( pTable[i_nSpan].mnCodeBits, pTable[i_nSpan].mnCode, io_rState );
}
void PDFWriterImpl::writeG4Stream( BitmapReadAccess const * i_pBitmap )
{
tools::Long nW = i_pBitmap->Width();
tools::Long nH = i_pBitmap->Height();
if( nW <= 0 || nH <= 0 )
return;
if( i_pBitmap->GetBitCount() != 1 )
return;
BitStreamState aBitState;
// the first reference line is virtual and completely empty
std::unique_ptr<sal_uInt8[]> pFirstRefLine(new sal_uInt8[nW/8 + 1]);
memset(pFirstRefLine.get(), 0, nW/8 + 1);
Scanline pRefLine = pFirstRefLine.get();
for( tools::Long nY = 0; nY < nH; nY++ )
{
const Scanline pCurLine = i_pBitmap->GetScanline( nY );
tools::Long nLineIndex = 0;
bool bRunSet = (*pCurLine & 0x80) != 0;
bool bRefSet = (*pRefLine & 0x80) != 0;
tools::Long nRunIndex1 = bRunSet ? 0 : findBitRun( pCurLine, 0, nW, bRunSet );
tools::Long nRefIndex1 = bRefSet ? 0 : findBitRun( pRefLine, 0, nW, bRefSet );
for( ; nLineIndex < nW; )
{
tools::Long nRefIndex2 = findBitRun( pRefLine, nRefIndex1, nW );
if( nRefIndex2 >= nRunIndex1 )
{
tools::Long nDiff = nRefIndex1 - nRunIndex1;
if( -3 <= nDiff && nDiff <= 3 )
{ // vertical coding
static const struct
{
sal_uInt32 mnCodeBits;
sal_uInt32 mnCode;
} VerticalCodes[7] = {
{ 7, 0x03 }, // 0000 011
{ 6, 0x03 }, // 0000 11
{ 3, 0x03 }, // 011
{ 1, 0x1 }, // 1
{ 3, 0x2 }, // 010
{ 6, 0x02 }, // 0000 10
{ 7, 0x02 } // 0000 010
};
// convert to index
nDiff += 3;
// emit diff code
putG4Bits( VerticalCodes[nDiff].mnCodeBits, VerticalCodes[nDiff].mnCode, aBitState );
nLineIndex = nRunIndex1;
}
else
{ // difference too large, horizontal coding
// emit horz code 001
putG4Bits( 3, 0x1, aBitState );
tools::Long nRunIndex2 = findBitRun( pCurLine, nRunIndex1, nW );
bool bWhiteFirst = ( nLineIndex + nRunIndex1 == 0 || ! isSet( pCurLine, nLineIndex ) );
putG4Span( nRunIndex1 - nLineIndex, bWhiteFirst, aBitState );
putG4Span( nRunIndex2 - nRunIndex1, ! bWhiteFirst, aBitState );
nLineIndex = nRunIndex2;
}
}
else
{ // emit pass code 0001
putG4Bits( 4, 0x1, aBitState );
nLineIndex = nRefIndex2;
}
if( nLineIndex < nW )
{
bool bSet = isSet( pCurLine, nLineIndex );
nRunIndex1 = findBitRun( pCurLine, nLineIndex, nW, bSet );
nRefIndex1 = findBitRun( pRefLine, nLineIndex, nW, ! bSet );
nRefIndex1 = findBitRun( pRefLine, nRefIndex1, nW, bSet );
}
}
// the current line is the reference for the next line
pRefLine = pCurLine;
}
// terminate strip with EOFB
putG4Bits( 12, 1, aBitState );
putG4Bits( 12, 1, aBitState );
if( aBitState.mnNextBitPos != 8 )
{
writeBufferBytes( &aBitState.getByte(), 1 );
aBitState.flush();
}
}
void PDFWriterImpl::DrawHatchLine_DrawLine(const Point& rStartPoint, const Point& rEndPoint)
{
drawLine(rStartPoint, rEndPoint);
}
static bool lcl_canUsePDFAxialShading(const Gradient& rGradient) {
switch (rGradient.GetStyle())
{
case css::awt::GradientStyle_LINEAR:
case css::awt::GradientStyle_AXIAL:
break;
default:
return false;
}
// TODO: handle step count
return rGradient.GetSteps() <= 0;
}
void PDFWriterImpl::ImplClearFontData(bool bNewFontLists)
{
VirtualDevice::ImplClearFontData(bNewFontLists);
if (bNewFontLists && AcquireGraphics())
{
ReleaseFontCollection();
ReleaseFontCache();
}
}
void PDFWriterImpl::ImplRefreshFontData(bool bNewFontLists)
{
if (bNewFontLists && AcquireGraphics())
{
SetFontCollectionFromSVData();
ResetNewFontCache();
}
}
vcl::Region PDFWriterImpl::ClipToDeviceBounds(vcl::Region aRegion) const
{
return aRegion;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
↑ V547 Expression 'nBitsPerPixel != 8' is always true.
↑ V1048 The 'bTrueColorJPG' variable was assigned the same value.