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#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>
#include <boost/scoped_ptr.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() );
boost::scoped_ptr< VirtualDevice > xCompVDev;
OutputDevice* pCompDev = NULL;
#ifndef NO_GETAPPWINDOW
pCompDev = Application::GetAppWindow();
#endif
if( !pCompDev )
{
xCompVDev.reset( new VirtualDevice );
pCompDev = xCompVDev.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.isEmpty() )
{
mxRasterizer.set( xFactory->createInstance( aServiceName ), uno::UNO_QUERY );
if( mxRasterizer.is() )
{
boost::scoped_ptr< VirtualDevice > xCompVDev;
OutputDevice* pCompDev = NULL;
#ifndef NO_GETAPPWINDOW
pCompDev = Application::GetAppWindow();
#endif
if( !pCompDev )
{
xCompVDev.reset( new VirtualDevice );
pCompDev = xCompVDev.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
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