405 lines
14 KiB
C++
405 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <vcl/rendergraphicrasterizer.hxx>
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#include <vcl/svapp.hxx>
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#include <vcl/wrkwin.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/unohelp.hxx>
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#include <vcl/bmpacc.hxx>
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#include <vcl/graph.hxx>
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#include <tools/stream.hxx>
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#include <comphelper/processfactory.hxx>
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#include <unotools/streamwrap.hxx>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <boost/scoped_ptr.hpp>
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#define VCL_SERVICENAME_RASTERIZER_SVG "com.sun.star.graphic.GraphicRasterizer_RSVG"
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using namespace com::sun::star;
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namespace vcl
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{
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// ---------------------------------------------------------
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// - maximum extent in pixel for graphics to be rasterized -
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// ---------------------------------------------------------
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static const sal_uInt32 nRasterizerDefaultExtent = 4096;
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// ---------------------------
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// - RenderGraphicRasterizer -
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// ---------------------------
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RenderGraphicRasterizer::RenderGraphicRasterizer( const RenderGraphic& rRenderGraphic ) :
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maRenderGraphic( rRenderGraphic ),
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mfRotateAngle( 0.0 ),
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mfShearAngleX( 0.0 ),
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mfShearAngleY( 0.0 )
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{
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}
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// -------------------------------------------------------------------------
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RenderGraphicRasterizer::RenderGraphicRasterizer( const RenderGraphicRasterizer& rRenderGraphicRasterizer ) :
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maRenderGraphic( rRenderGraphicRasterizer.maRenderGraphic ),
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mxRasterizer( rRenderGraphicRasterizer.mxRasterizer ),
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maBitmapEx( rRenderGraphicRasterizer.maBitmapEx ),
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maDefaultSizePixel( rRenderGraphicRasterizer.maDefaultSizePixel ),
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mfRotateAngle( rRenderGraphicRasterizer.mfRotateAngle ),
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mfShearAngleX( rRenderGraphicRasterizer.mfShearAngleX ),
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mfShearAngleY( rRenderGraphicRasterizer.mfShearAngleY )
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{
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}
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// -------------------------------------------------------------------------
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RenderGraphicRasterizer::~RenderGraphicRasterizer()
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{
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}
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// -------------------------------------------------------------------------
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RenderGraphicRasterizer& RenderGraphicRasterizer::operator=(
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const RenderGraphicRasterizer& rRenderGraphicRasterizer )
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{
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maRenderGraphic = rRenderGraphicRasterizer.maRenderGraphic;
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maBitmapEx = rRenderGraphicRasterizer.maBitmapEx;
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maDefaultSizePixel = rRenderGraphicRasterizer.maDefaultSizePixel;
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mfRotateAngle = rRenderGraphicRasterizer.mfRotateAngle;
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mfShearAngleX = rRenderGraphicRasterizer.mfShearAngleX;
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mfShearAngleY = rRenderGraphicRasterizer.mfShearAngleY;
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mxRasterizer = rRenderGraphicRasterizer.mxRasterizer;
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return( *this );
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}
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// -------------------------------------------------------------------------
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const Size& RenderGraphicRasterizer::GetDefaultSizePixel() const
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{
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const_cast< RenderGraphicRasterizer* >( this )->InitializeRasterizer();
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return( maDefaultSizePixel );
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}
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// -------------------------------------------------------------------------
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BitmapEx RenderGraphicRasterizer::GetReplacement() const
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{
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BitmapEx aRet( Rasterize( GetDefaultSizePixel() ) );
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aRet.SetPrefSize( GetPrefSize() );
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aRet.SetPrefMapMode( GetPrefMapMode() );
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return( aRet );
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}
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// -------------------------------------------------------------------------
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Size RenderGraphicRasterizer::GetPrefSize() const
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{
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const Size aSizePixel( GetDefaultSizePixel() );
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boost::scoped_ptr< VirtualDevice > xCompVDev;
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OutputDevice* pCompDev = NULL;
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#ifndef NO_GETAPPWINDOW
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pCompDev = Application::GetAppWindow();
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#endif
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if( !pCompDev )
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{
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xCompVDev.reset( new VirtualDevice );
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pCompDev = xCompVDev.get();
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}
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return( pCompDev->PixelToLogic( aSizePixel, GetPrefMapMode() ) );
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}
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// -------------------------------------------------------------------------
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MapMode RenderGraphicRasterizer::GetPrefMapMode() const
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{
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return( MapMode( MAP_100TH_MM ) );
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}
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// -------------------------------------------------------------------------
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const BitmapEx& RenderGraphicRasterizer::Rasterize( const Size& rSizePixel,
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double fRotateAngle,
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double fShearAngleX,
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double fShearAngleY,
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sal_uInt32 nMaxExtent ) const
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{
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const bool bRasterize = !maRenderGraphic.IsEmpty() &&
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rSizePixel.Width() && rSizePixel.Height() &&
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( maBitmapEx.IsEmpty() ||
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( rSizePixel != maBitmapEx.GetSizePixel() ) ||
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( fRotateAngle != mfRotateAngle ) ||
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( fShearAngleX != mfShearAngleX ) ||
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( fShearAngleY != mfShearAngleY ) );
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if( bRasterize )
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{
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const_cast< RenderGraphicRasterizer* >( this )->InitializeRasterizer();
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if( mxRasterizer.is() )
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{
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sal_uInt32 nWidth = labs( rSizePixel.Width() );
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sal_uInt32 nHeight = labs( rSizePixel.Height() );
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// limiting the extent of the rastered bitmap
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if( VCL_RASTERIZER_UNLIMITED_EXTENT != nMaxExtent )
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{
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if( VCL_RASTERIZER_DEFAULT_EXTENT == nMaxExtent )
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{
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nMaxExtent = nRasterizerDefaultExtent;
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}
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if( ( nWidth > nMaxExtent ) || ( nHeight > nMaxExtent ) )
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{
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const double fScale = static_cast< double >( nMaxExtent ) / ::std::max( nWidth, nHeight );
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nWidth = FRound( nWidth * fScale );
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nHeight = FRound( nHeight * fScale );
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}
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}
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if( !ImplRasterizeFromCache( const_cast< RenderGraphicRasterizer& >( *this ),
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Size( nWidth, nHeight ), fRotateAngle, fShearAngleX, fShearAngleY ) )
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{
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try
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{
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const uno::Sequence< beans::PropertyValue > aPropertySeq;
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const Graphic aRasteredGraphic( mxRasterizer->rasterize( nWidth,
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nHeight,
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fRotateAngle,
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fShearAngleX,
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fShearAngleY,
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aPropertySeq ) );
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maBitmapEx = aRasteredGraphic.GetBitmapEx();
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mfRotateAngle = fRotateAngle;
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mfShearAngleX = fShearAngleX;
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mfShearAngleY = fShearAngleY;
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ImplUpdateCache( *this );
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// OSL_TRACE( "Wanted: %d x %d / Got: %d x %d", rSizePixel.Width(), rSizePixel.Height(), maBitmapEx.GetSizePixel().Width(), maBitmapEx.GetSizePixel().Height() );
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}
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catch( ... )
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{
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OSL_TRACE( "caught exception during rasterization" );
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}
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}
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}
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}
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return( maBitmapEx );
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}
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// -------------------------------------------------------------------------
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void RenderGraphicRasterizer::InitializeRasterizer()
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{
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if( !mxRasterizer.is() && !ImplInitializeFromCache( *this ) )
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{
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uno::Reference< lang::XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory() );
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maDefaultSizePixel.Width() = maDefaultSizePixel.Height() = 0;
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if( !maRenderGraphic.IsEmpty() )
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{
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rtl::OUString aServiceName;
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if( 0 == maRenderGraphic.GetGraphicDataMimeType().compareToAscii( "image/svg+xml" ) )
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{
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aServiceName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( VCL_SERVICENAME_RASTERIZER_SVG ) );
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}
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if( aServiceName.getLength() )
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{
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mxRasterizer.set( xFactory->createInstance( aServiceName ), uno::UNO_QUERY );
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if( mxRasterizer.is() )
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{
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boost::scoped_ptr< VirtualDevice > xCompVDev;
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OutputDevice* pCompDev = NULL;
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#ifndef NO_GETAPPWINDOW
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pCompDev = Application::GetAppWindow();
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#endif
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if( !pCompDev )
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{
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xCompVDev.reset( new VirtualDevice );
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pCompDev = xCompVDev.get();
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}
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const Size aDPI( pCompDev->LogicToPixel( Size( 1, 1 ), MAP_INCH ) );
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awt::Size aSizePixel;
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SvMemoryStream aMemStm( maRenderGraphic.GetGraphicData().get(),
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maRenderGraphic.GetGraphicDataLength(),
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STREAM_READ );
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uno::Reference< io::XInputStream > xIStm( new utl::OSeekableInputStreamWrapper( aMemStm ) );
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try
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{
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if( !xIStm.is() || !mxRasterizer->initializeData( xIStm, aDPI.Width(), aDPI.Height(), aSizePixel ) )
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{
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mxRasterizer.clear();
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}
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else
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{
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maDefaultSizePixel.Width() = aSizePixel.Width;
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maDefaultSizePixel.Height() = aSizePixel.Height;
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}
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}
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catch( ... )
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{
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OSL_TRACE( "caught exception during initialization of SVG rasterizer component" );
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mxRasterizer.clear();
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}
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}
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}
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}
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}
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}
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// ------------------------------------------------------------------------------
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RenderGraphicRasterizer::RenderGraphicRasterizerCache& RenderGraphicRasterizer::ImplGetCache()
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{
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static RenderGraphicRasterizerCache* pCache = NULL;
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if( !pCache )
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{
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pCache = new RenderGraphicRasterizerCache;
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}
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return( *pCache );
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}
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// ------------------------------------------------------------------------------
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bool RenderGraphicRasterizer::ImplInitializeFromCache( RenderGraphicRasterizer& rRasterizer )
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{
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RenderGraphicRasterizerCache& rCache = ImplGetCache();
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bool bRet = false;
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for( sal_uInt32 i = 0; i < rCache.size(); ++i )
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{
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const RenderGraphicRasterizer* pCheck = &rCache[ i ];
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if( pCheck && pCheck->mxRasterizer.is() && ( pCheck->maRenderGraphic == rRasterizer.maRenderGraphic ) )
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{
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// OSL_TRACE( "Hit RenderGraphicRasterizer cache for initialization" );
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rRasterizer.mxRasterizer = pCheck->mxRasterizer;
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rRasterizer.maDefaultSizePixel = pCheck->maDefaultSizePixel;
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// put found Rasterizer at begin of deque
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const RenderGraphicRasterizer aFound( rCache[ i ] );
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rCache.erase( rCache.begin() + i );
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rCache.push_front( aFound );
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bRet = true;
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}
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}
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return( bRet );
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}
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// ------------------------------------------------------------------------------
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bool RenderGraphicRasterizer::ImplRasterizeFromCache( RenderGraphicRasterizer& rRasterizer,
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const Size& rSizePixel,
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double fRotateAngle,
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double fShearAngleX,
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double fShearAngleY )
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{
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RenderGraphicRasterizerCache& rCache = ImplGetCache();
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bool bRet = false;
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for( sal_uInt32 i = 0; i < rCache.size(); ++i )
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{
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const RenderGraphicRasterizer& rCheck = rCache[ i ];
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if( rCheck.mxRasterizer.is() && rRasterizer.mxRasterizer.is() &&
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( ( rCheck.mxRasterizer == rRasterizer.mxRasterizer ) ||
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( rRasterizer.maRenderGraphic == rCheck.maRenderGraphic ) ) &&
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( rCheck.maBitmapEx.GetSizePixel() == rSizePixel ) &&
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( rCheck.mfRotateAngle == fRotateAngle ) &&
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( rCheck.mfShearAngleX == fShearAngleX ) &&
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( rCheck.mfShearAngleY == fShearAngleY ) )
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{
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// OSL_TRACE( "Hit RenderGraphicRasterizer cache for rasterizing" );
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rRasterizer.maBitmapEx = rCheck.maBitmapEx;
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rRasterizer.mfRotateAngle = fRotateAngle;
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rRasterizer.mfShearAngleX = fShearAngleX;
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rRasterizer.mfShearAngleY = fShearAngleY;
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// put found Rasterizer at begin of deque
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const RenderGraphicRasterizer aFound( rCache[ i ] );
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rCache.erase( rCache.begin() + i );
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rCache.push_front( aFound );
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bRet = true;
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}
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}
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return( bRet );
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}
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// ------------------------------------------------------------------------------
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void RenderGraphicRasterizer::ImplUpdateCache( const RenderGraphicRasterizer& rRasterizer )
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{
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RenderGraphicRasterizerCache& rCache = ImplGetCache();
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const sal_uInt32 nMaxCacheSize = 8;
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if( rCache.size() < nMaxCacheSize )
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{
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rCache.push_front( rRasterizer );
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}
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else
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{
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rCache.pop_back();
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rCache.push_front( rRasterizer );
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}
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}
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} // VCL
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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