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Diffstat (limited to 'vcl/source/gdi/rendergraphicrasterizer.cxx')
| -rw-r--r-- | vcl/source/gdi/rendergraphicrasterizer.cxx | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/vcl/source/gdi/rendergraphicrasterizer.cxx b/vcl/source/gdi/rendergraphicrasterizer.cxx new file mode 100644 index 000000000000..29c9863335b3 --- /dev/null +++ b/vcl/source/gdi/rendergraphicrasterizer.cxx @@ -0,0 +1,400 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#include <vcl/rendergraphicrasterizer.hxx> +#include <vcl/svapp.hxx> +#include <vcl/wrkwin.hxx> +#include <vcl/virdev.hxx> +#include <vcl/unohelp.hxx> +#include <vcl/bmpacc.hxx> +#include <vcl/graph.hxx> +#include <tools/stream.hxx> +#include <comphelper/processfactory.hxx> +#include <unotools/streamwrap.hxx> + +#include <com/sun/star/lang/XMultiServiceFactory.hpp> + +#define VCL_SERVICENAME_RASTERIZER_SVG "com.sun.star.graphic.GraphicRasterizer_RSVG" + +using namespace com::sun::star; + +namespace vcl +{ +// --------------------------------------------------------- +// - maximum extent in pixel for graphics to be rasterized - +// --------------------------------------------------------- + +static const sal_uInt32 nRasterizerDefaultExtent = 4096; + +// --------------------------- +// - RenderGraphicRasterizer - +// --------------------------- + +RenderGraphicRasterizer::RenderGraphicRasterizer( const RenderGraphic& rRenderGraphic ) : + maRenderGraphic( rRenderGraphic ), + mfRotateAngle( 0.0 ), + mfShearAngleX( 0.0 ), + mfShearAngleY( 0.0 ) +{ +} + +// ------------------------------------------------------------------------- + +RenderGraphicRasterizer::RenderGraphicRasterizer( const RenderGraphicRasterizer& rRenderGraphicRasterizer ) : + maRenderGraphic( rRenderGraphicRasterizer.maRenderGraphic ), + mxRasterizer( rRenderGraphicRasterizer.mxRasterizer ), + maBitmapEx( rRenderGraphicRasterizer.maBitmapEx ), + maDefaultSizePixel( rRenderGraphicRasterizer.maDefaultSizePixel ), + mfRotateAngle( rRenderGraphicRasterizer.mfRotateAngle ), + mfShearAngleX( rRenderGraphicRasterizer.mfShearAngleX ), + mfShearAngleY( rRenderGraphicRasterizer.mfShearAngleY ) +{ +} + +// ------------------------------------------------------------------------- + +RenderGraphicRasterizer::~RenderGraphicRasterizer() +{ +} + +// ------------------------------------------------------------------------- + +RenderGraphicRasterizer& RenderGraphicRasterizer::operator=( + const RenderGraphicRasterizer& rRenderGraphicRasterizer ) +{ + maRenderGraphic = rRenderGraphicRasterizer.maRenderGraphic; + maBitmapEx = rRenderGraphicRasterizer.maBitmapEx; + maDefaultSizePixel = rRenderGraphicRasterizer.maDefaultSizePixel; + mfRotateAngle = rRenderGraphicRasterizer.mfRotateAngle; + mfShearAngleX = rRenderGraphicRasterizer.mfShearAngleX; + mfShearAngleY = rRenderGraphicRasterizer.mfShearAngleY; + mxRasterizer = rRenderGraphicRasterizer.mxRasterizer; + + return( *this ); +} + +// ------------------------------------------------------------------------- + +const Size& RenderGraphicRasterizer::GetDefaultSizePixel() const +{ + const_cast< RenderGraphicRasterizer* >( this )->InitializeRasterizer(); + + return( maDefaultSizePixel ); +} + +// ------------------------------------------------------------------------- + +BitmapEx RenderGraphicRasterizer::GetReplacement() const +{ + BitmapEx aRet( Rasterize( GetDefaultSizePixel() ) ); + + aRet.SetPrefSize( GetPrefSize() ); + aRet.SetPrefMapMode( GetPrefMapMode() ); + + return( aRet ); +} + +// ------------------------------------------------------------------------- + +Size RenderGraphicRasterizer::GetPrefSize() const +{ + const Size aSizePixel( GetDefaultSizePixel() ); + std::auto_ptr< VirtualDevice > apCompVDev; + OutputDevice* pCompDev = NULL; + +#ifndef NO_GETAPPWINDOW + pCompDev = Application::GetAppWindow(); +#endif + + if( !pCompDev ) + { + apCompVDev.reset( new VirtualDevice ); + pCompDev = apCompVDev.get(); + } + + return( pCompDev->PixelToLogic( aSizePixel, GetPrefMapMode() ) ); +} + +// ------------------------------------------------------------------------- + +MapMode RenderGraphicRasterizer::GetPrefMapMode() const +{ + return( MapMode( MAP_100TH_MM ) ); +} + +// ------------------------------------------------------------------------- + +const BitmapEx& RenderGraphicRasterizer::Rasterize( const Size& rSizePixel, + double fRotateAngle, + double fShearAngleX, + double fShearAngleY, + sal_uInt32 nMaxExtent ) const +{ + const bool bRasterize = !maRenderGraphic.IsEmpty() && + rSizePixel.Width() && rSizePixel.Height() && + ( maBitmapEx.IsEmpty() || + ( rSizePixel != maBitmapEx.GetSizePixel() ) || + ( fRotateAngle != mfRotateAngle ) || + ( fShearAngleX != mfShearAngleX ) || + ( fShearAngleY != mfShearAngleY ) ); + + if( bRasterize ) + { + const_cast< RenderGraphicRasterizer* >( this )->InitializeRasterizer(); + + if( mxRasterizer.is() ) + { + sal_uInt32 nWidth = labs( rSizePixel.Width() ); + sal_uInt32 nHeight = labs( rSizePixel.Height() ); + + // limiting the extent of the rastered bitmap + if( VCL_RASTERIZER_UNLIMITED_EXTENT != nMaxExtent ) + { + if( VCL_RASTERIZER_DEFAULT_EXTENT == nMaxExtent ) + { + nMaxExtent = nRasterizerDefaultExtent; + } + + if( ( nWidth > nMaxExtent ) || ( nHeight > nMaxExtent ) ) + { + const double fScale = static_cast< double >( nMaxExtent ) / ::std::max( nWidth, nHeight ); + + nWidth = FRound( nWidth * fScale ); + nHeight = FRound( nHeight * fScale ); + } + } + + if( !ImplRasterizeFromCache( const_cast< RenderGraphicRasterizer& >( *this ), + Size( nWidth, nHeight ), fRotateAngle, fShearAngleX, fShearAngleY ) ) + { + try + { + const uno::Sequence< beans::PropertyValue > aPropertySeq; + const Graphic aRasteredGraphic( mxRasterizer->rasterize( nWidth, + nHeight, + fRotateAngle, + fShearAngleX, + fShearAngleY, + aPropertySeq ) ); + + maBitmapEx = aRasteredGraphic.GetBitmapEx(); + mfRotateAngle = fRotateAngle; + mfShearAngleX = fShearAngleX; + mfShearAngleY = fShearAngleY; + + ImplUpdateCache( *this ); + +// OSL_TRACE( "Wanted: %d x %d / Got: %d x %d", rSizePixel.Width(), rSizePixel.Height(), maBitmapEx.GetSizePixel().Width(), maBitmapEx.GetSizePixel().Height() ); + } + catch( ... ) + { + OSL_TRACE( "caught exception during rasterization" ); + } + } + } + } + + return( maBitmapEx ); +} + +// ------------------------------------------------------------------------- + +void RenderGraphicRasterizer::InitializeRasterizer() +{ + if( !mxRasterizer.is() && !ImplInitializeFromCache( *this ) ) + { + uno::Reference< lang::XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory() ); + + maDefaultSizePixel.Width() = maDefaultSizePixel.Height() = 0; + + if( !maRenderGraphic.IsEmpty() ) + { + rtl::OUString aServiceName; + + if( 0 == maRenderGraphic.GetGraphicDataMimeType().compareToAscii( "image/svg+xml" ) ) + { + aServiceName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( VCL_SERVICENAME_RASTERIZER_SVG ) ); + } + + if( aServiceName.getLength() ) + { + mxRasterizer.set( xFactory->createInstance( aServiceName ), uno::UNO_QUERY ); + + if( mxRasterizer.is() ) + { + std::auto_ptr< VirtualDevice > apCompVDev; + OutputDevice* pCompDev = NULL; + +#ifndef NO_GETAPPWINDOW + pCompDev = Application::GetAppWindow(); +#endif + + if( !pCompDev ) + { + apCompVDev.reset( new VirtualDevice ); + pCompDev = apCompVDev.get(); + } + + const Size aDPI( pCompDev->LogicToPixel( Size( 1, 1 ), MAP_INCH ) ); + awt::Size aSizePixel; + SvMemoryStream aMemStm( maRenderGraphic.GetGraphicData().get(), + maRenderGraphic.GetGraphicDataLength(), + STREAM_READ ); + + uno::Reference< io::XInputStream > xIStm( new utl::OSeekableInputStreamWrapper( aMemStm ) ); + + try + { + if( !xIStm.is() || !mxRasterizer->initializeData( xIStm, aDPI.Width(), aDPI.Height(), aSizePixel ) ) + { + mxRasterizer.clear(); + } + else + { + maDefaultSizePixel.Width() = aSizePixel.Width; + maDefaultSizePixel.Height() = aSizePixel.Height; + } + } + catch( ... ) + { + OSL_TRACE( "caught exception during initialization of SVG rasterizer component" ); + mxRasterizer.clear(); + } + } + } + } + } +} + +// ------------------------------------------------------------------------------ + +RenderGraphicRasterizer::RenderGraphicRasterizerCache& RenderGraphicRasterizer::ImplGetCache() +{ + static RenderGraphicRasterizerCache* pCache = NULL; + + if( !pCache ) + { + pCache = new RenderGraphicRasterizerCache; + } + + return( *pCache ); +} + +// ------------------------------------------------------------------------------ + +bool RenderGraphicRasterizer::ImplInitializeFromCache( RenderGraphicRasterizer& rRasterizer ) +{ + RenderGraphicRasterizerCache& rCache = ImplGetCache(); + bool bRet = false; + + for( sal_uInt32 i = 0; i < rCache.size(); ++i ) + { + const RenderGraphicRasterizer* pCheck = &rCache[ i ]; + + if( pCheck && pCheck->mxRasterizer.is() && ( pCheck->maRenderGraphic == rRasterizer.maRenderGraphic ) ) + { +// OSL_TRACE( "Hit RenderGraphicRasterizer cache for initialization" ); + + rRasterizer.mxRasterizer = pCheck->mxRasterizer; + rRasterizer.maDefaultSizePixel = pCheck->maDefaultSizePixel; + + // put found Rasterizer at begin of deque + const RenderGraphicRasterizer aFound( rCache[ i ] ); + + rCache.erase( rCache.begin() + i ); + rCache.push_front( aFound ); + + + bRet = true; + } + } + + return( bRet ); +} + +// ------------------------------------------------------------------------------ + +bool RenderGraphicRasterizer::ImplRasterizeFromCache( RenderGraphicRasterizer& rRasterizer, + const Size& rSizePixel, + double fRotateAngle, + double fShearAngleX, + double fShearAngleY ) +{ + RenderGraphicRasterizerCache& rCache = ImplGetCache(); + bool bRet = false; + + for( sal_uInt32 i = 0; i < rCache.size(); ++i ) + { + const RenderGraphicRasterizer& rCheck = rCache[ i ]; + + if( rCheck.mxRasterizer.is() && rRasterizer.mxRasterizer.is() && + ( ( rCheck.mxRasterizer == rRasterizer.mxRasterizer ) || + ( rRasterizer.maRenderGraphic == rCheck.maRenderGraphic ) ) && + ( rCheck.maBitmapEx.GetSizePixel() == rSizePixel ) && + ( rCheck.mfRotateAngle == fRotateAngle ) && + ( rCheck.mfShearAngleX == fShearAngleX ) && + ( rCheck.mfShearAngleY == fShearAngleY ) ) + { +// OSL_TRACE( "Hit RenderGraphicRasterizer cache for rasterizing" ); + + rRasterizer.maBitmapEx = rCheck.maBitmapEx; + rRasterizer.mfRotateAngle = fRotateAngle; + rRasterizer.mfShearAngleX = fShearAngleX; + rRasterizer.mfShearAngleY = fShearAngleY; + + // put found Rasterizer at begin of deque + const RenderGraphicRasterizer aFound( rCache[ i ] ); + + rCache.erase( rCache.begin() + i ); + rCache.push_front( aFound ); + + bRet = true; + } + } + + return( bRet ); +} + +// ------------------------------------------------------------------------------ + +void RenderGraphicRasterizer::ImplUpdateCache( const RenderGraphicRasterizer& rRasterizer ) +{ + RenderGraphicRasterizerCache& rCache = ImplGetCache(); + const sal_uInt32 nMaxCacheSize = 8; + + if( rCache.size() < nMaxCacheSize ) + { + rCache.push_front( rRasterizer ); + } + else + { + rCache.pop_back(); + rCache.push_front( rRasterizer ); + } +} + +} // VCL |