cppcanvas/source/mtfrenderer/rendergraphicaction.cxx

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  28
  29
  30 #include <rtl/logfile.hxx>
  31 #include <com/sun/star/rendering/XBitmap.hpp>
  32 #include <com/sun/star/rendering/RepaintResult.hpp>
  33 #include <com/sun/star/rendering/XCachedPrimitive.hpp>
  34 #include <vcl/rendergraphicrasterizer.hxx>
  35 #include <tools/gen.hxx>
  36 #include <vcl/canvastools.hxx>
  37 #include <canvas/canvastools.hxx>
  38 #include <basegfx/matrix/b2dhommatrix.hxx>
  39 #include <basegfx/vector/b2dsize.hxx>
  40 #include <basegfx/point/b2dpoint.hxx>
  41 #include <basegfx/range/b2drange.hxx>
  42 #include <basegfx/tools/canvastools.hxx>
  43 #include <boost/utility.hpp>
  44 #include "cachedprimitivebase.hxx"
  45 #include "rendergraphicaction.hxx"
  46 #include "outdevstate.hxx"
  47 #include "mtftools.hxx"
  48 #include <basegfx/matrix/b2dhommatrixtools.hxx>
  49
  50
  51 using namespace ::com::sun::star;
  52
  53 namespace cppcanvas
  54 {
  55     namespace internal
  56     {
  57         namespace
  58         {
  59
  60             class RenderGraphicAction : public CachedPrimitiveBase
  61             {
  62             public:
  63                 RenderGraphicAction( const ::vcl::RenderGraphic& rRenderGraphic,
  64                               const ::basegfx::B2DPoint& rDstPoint,
  65                               const ::basegfx::B2DVector& rDstSize,
  66                               const CanvasSharedPtr&,
  67                               const OutDevState& );
  68
  69                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
  70                                            const Subset& rSubset ) const;
  71
  72                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const;
  73                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation,
  74                                                        const Subset& rSubset ) const;
  75
  76                 virtual sal_Int32 getActionCount() const;
  77
  78             private:
  79                 using Action::render;
  80                 virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
  81                                               const ::basegfx::B2DHomMatrix& rTransformation ) const;
  82
  83                 ::vcl::RenderGraphic                    maRenderGraphic;
  84                 uno::Reference< rendering::XBitmap >    mxBitmap;
  85                 CanvasSharedPtr                         mpCanvas;
  86                 rendering::RenderState                  maState;
  87             };
  88
  89             RenderGraphicAction::RenderGraphicAction( const ::vcl::RenderGraphic& rRenderGraphic,
  90                                                       const ::basegfx::B2DPoint& rDstPoint,
  91                                                       const ::basegfx::B2DVector& rDstSize,
  92                                                       const CanvasSharedPtr& rCanvas,
  93                                                       const OutDevState& rState ) :
  94                 CachedPrimitiveBase( rCanvas, true ),
  95                 maRenderGraphic( rRenderGraphic ),
  96                 mpCanvas( rCanvas )
  97             {
  98                 tools::initRenderState( maState,rState );
  99
 100                 const ::vcl::RenderGraphicRasterizer aRasterizer( rRenderGraphic );
 101                 const BitmapEx aBmpEx( aRasterizer.Rasterize( ::vcl::unotools::sizeFromB2DSize( rDstSize ) ) );
 102                 const Size aRasteredSizePixel( aBmpEx.GetSizePixel() );
 103
 104                 if( aRasteredSizePixel.Width() && aRasteredSizePixel.Height() )
 105                 {
 106                     const ::basegfx::B2DVector aScale( rDstSize.getX() / aRasteredSizePixel.Width(),
 107                                                        rDstSize.getY() / aRasteredSizePixel.Height() );
 108                     const basegfx::B2DHomMatrix aLocalTransformation(
 109                         basegfx::tools::createScaleTranslateB2DHomMatrix( aScale, rDstPoint)) ;
 110
 111                     ::canvas::tools::appendToRenderState( maState, aLocalTransformation );
 112
 113                     // correct clip (which is relative to original transform)
 114                     tools::modifyClip( maState, rState, rCanvas, rDstPoint, &aScale, NULL );
 115
 116                     mxBitmap = ::vcl::unotools::xBitmapFromBitmapEx( rCanvas->getUNOCanvas()->getDevice(), aBmpEx );
 117                 }
 118             }
 119
 120             bool RenderGraphicAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 121                                                        const ::basegfx::B2DHomMatrix&                 rTransformation ) const
 122             {
 123                 RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::RenderGraphicAction::renderPrimitive()" );
 124                 RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::RenderGraphicAction: 0x%X", this );
 125
 126                 if( mxBitmap.is() )
 127                 {
 128                     rendering::RenderState aLocalState( maState );
 129                     ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 130
 131                     rCachedPrimitive = mpCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
 132                                                                              mpCanvas->getViewState(),
 133                                                                              aLocalState );
 134                 }
 135
 136                 return true;
 137             }
 138
 139             bool RenderGraphicAction::renderSubset( const ::basegfx::B2DHomMatrix&    rTransformation,
 140                                                     const Subset&                    rSubset ) const
 141             {
 142                 // rendergraphic only contains a single action, fail if subset
 143                 // requests different range
 144                 if( rSubset.mnSubsetBegin != 0 ||
 145                     rSubset.mnSubsetEnd != 1 )
 146                     return false;
 147
 148                 return CachedPrimitiveBase::render( rTransformation );
 149             }
 150
 151             ::basegfx::B2DRange RenderGraphicAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const
 152             {
 153                 ::basegfx::B2DRange aRet;
 154
 155                 if( mxBitmap.is() )
 156                 {
 157                     rendering::RenderState aLocalState( maState );
 158                     ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 159
 160                     geometry::IntegerSize2D aSize( mxBitmap->getSize() );
 161
 162                     aRet = tools::calcDevicePixelBounds( ::basegfx::B2DRange( 0, 0, aSize.Width, aSize.Height ),
 163                                                          mpCanvas->getViewState(), aLocalState );
 164                 }
 165
 166                 return( aRet );
 167             }
 168
 169             ::basegfx::B2DRange RenderGraphicAction::getBounds( const ::basegfx::B2DHomMatrix&  rTransformation,
 170                                                          const Subset&                  rSubset ) const
 171             {
 172                 // rendergraphic only contains a single action, empty bounds
 173                 // if subset requests different range
 174                 if( rSubset.mnSubsetBegin != 0 ||
 175                     rSubset.mnSubsetEnd != 1 )
 176                     return ::basegfx::B2DRange();
 177
 178                 return getBounds( rTransformation );
 179             }
 180
 181             sal_Int32 RenderGraphicAction::getActionCount() const
 182             {
 183                 return 1;
 184             }
 185         }
 186
 187         ActionSharedPtr RenderGraphicActionFactory::createRenderGraphicAction( const ::vcl::RenderGraphic& rRenderGraphic,
 188                                                                  const ::basegfx::B2DPoint&  rDstPoint,
 189                                                                  const ::basegfx::B2DVector& rDstSize,
 190                                                                  const CanvasSharedPtr&      rCanvas,
 191                                                                  const OutDevState&          rState )
 192         {
 193             return ActionSharedPtr( new RenderGraphicAction(rRenderGraphic,
 194                                                      rDstPoint,
 195                                                      rDstSize,
 196                                                      rCanvas,
 197                                                      rState ) );
 198         }
 199     }
 200 }
 201
 202 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */