cppcanvas/source/mtfrenderer/bitmapaction.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/bitmapex.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 "bitmapaction.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 BitmapAction : public CachedPrimitiveBase
  61             {
  62             public:
  63                 BitmapAction( const ::BitmapEx&,
  64                               const ::basegfx::B2DPoint& rDstPoint,
  65                               const CanvasSharedPtr&,
  66                               const OutDevState& );
  67                 BitmapAction( const ::BitmapEx&,
  68                               const ::basegfx::B2DPoint&  rDstPoint,
  69                               const ::basegfx::B2DVector& rDstSize,
  70                               const CanvasSharedPtr&,
  71                               const OutDevState& );
  72
  73                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
  74                                            const Subset&                  rSubset ) const;
  75
  76                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const;
  77                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
  78                                                        const Subset&                    rSubset ) const;
  79
  80                 virtual sal_Int32 getActionCount() const;
  81
  82             private:
  83                 using Action::render;
  84                 virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
  85                                               const ::basegfx::B2DHomMatrix&                 rTransformation ) const;
  86
  87                 uno::Reference< rendering::XBitmap >                    mxBitmap;
  88                 CanvasSharedPtr                                         mpCanvas;
  89                 rendering::RenderState                                  maState;
  90             };
  91
  92
  93             BitmapAction::BitmapAction( const ::BitmapEx&          rBmpEx,
  94                                         const ::basegfx::B2DPoint& rDstPoint,
  95                                         const CanvasSharedPtr&     rCanvas,
  96                                         const OutDevState&         rState ) :
  97                 CachedPrimitiveBase( rCanvas, true ),
  98                 mxBitmap( ::vcl::unotools::xBitmapFromBitmapEx( rCanvas->getUNOCanvas()->getDevice(),
  99                                                                 rBmpEx ) ),
 100                 mpCanvas( rCanvas ),
 101                 maState()
 102             {
 103                 tools::initRenderState(maState,rState);
 104
 105                 // Setup transformation such that the next render call is
 106                 // moved rPoint away.
 107                 const basegfx::B2DHomMatrix aLocalTransformation(basegfx::tools::createTranslateB2DHomMatrix(rDstPoint));
 108                 ::canvas::tools::appendToRenderState( maState,
 109                                                       aLocalTransformation );
 110
 111                 // correct clip (which is relative to original transform)
 112                 tools::modifyClip( maState,
 113                                    rState,
 114                                    rCanvas,
 115                                    rDstPoint,
 116                                    NULL,
 117                                    NULL );
 118             }
 119
 120             BitmapAction::BitmapAction( const ::BitmapEx&           rBmpEx,
 121                                         const ::basegfx::B2DPoint&  rDstPoint,
 122                                         const ::basegfx::B2DVector& rDstSize,
 123                                         const CanvasSharedPtr&      rCanvas,
 124                                         const OutDevState&          rState      ) :
 125                 CachedPrimitiveBase( rCanvas, true ),
 126                 mxBitmap( ::vcl::unotools::xBitmapFromBitmapEx( rCanvas->getUNOCanvas()->getDevice(),
 127                                                                 rBmpEx ) ),
 128                 mpCanvas( rCanvas ),
 129                 maState()
 130             {
 131                 tools::initRenderState(maState,rState);
 132
 133                 // Setup transformation such that the next render call is
 134                 // moved rPoint away, and scaled according to the ratio
 135                 // given by src and dst size.
 136                 const ::Size aBmpSize( rBmpEx.GetSizePixel() );
 137
 138                 const ::basegfx::B2DVector aScale( rDstSize.getX() / aBmpSize.Width(),
 139                                                    rDstSize.getY() / aBmpSize.Height() );
 140                 const basegfx::B2DHomMatrix aLocalTransformation(basegfx::tools::createScaleTranslateB2DHomMatrix(
 141                     aScale, rDstPoint));
 142                 ::canvas::tools::appendToRenderState( maState, aLocalTransformation );
 143
 144                 // correct clip (which is relative to original transform)
 145                 tools::modifyClip( maState,
 146                                    rState,
 147                                    rCanvas,
 148                                    rDstPoint,
 149                                    &aScale,
 150                                    NULL );
 151             }
 152
 153             bool BitmapAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 154                                                 const ::basegfx::B2DHomMatrix&                 rTransformation ) const
 155             {
 156                 RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::BitmapAction::renderPrimitive()" );
 157                 RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::BitmapAction: 0x%X", this );
 158
 159                 rendering::RenderState aLocalState( maState );
 160                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 161
 162                 rCachedPrimitive = mpCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
 163                                                                          mpCanvas->getViewState(),
 164                                                                          aLocalState );
 165
 166                 return true;
 167             }
 168
 169             bool BitmapAction::renderSubset( const ::basegfx::B2DHomMatrix&   rTransformation,
 170                                              const Subset&                    rSubset ) const
 171             {
 172                 // bitmap only contains a single action, fail if subset
 173                 // requests different range
 174                 if( rSubset.mnSubsetBegin != 0 ||
 175                     rSubset.mnSubsetEnd != 1 )
 176                     return false;
 177
 178                 return CachedPrimitiveBase::render( rTransformation );
 179             }
 180
 181             ::basegfx::B2DRange BitmapAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const
 182             {
 183                 rendering::RenderState aLocalState( maState );
 184                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 185
 186                 const geometry::IntegerSize2D aSize( mxBitmap->getSize() );
 187
 188                 return tools::calcDevicePixelBounds( ::basegfx::B2DRange( 0,0,
 189                                                                           aSize.Width,
 190                                                                           aSize.Height ),
 191                                                      mpCanvas->getViewState(),
 192                                                      aLocalState );
 193             }
 194
 195             ::basegfx::B2DRange BitmapAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation,
 196                                                          const Subset&                  rSubset ) const
 197             {
 198                 // bitmap only contains a single action, empty bounds
 199                 // if subset requests different range
 200                 if( rSubset.mnSubsetBegin != 0 ||
 201                     rSubset.mnSubsetEnd != 1 )
 202                     return ::basegfx::B2DRange();
 203
 204                 return getBounds( rTransformation );
 205             }
 206
 207             sal_Int32 BitmapAction::getActionCount() const
 208             {
 209                 return 1;
 210             }
 211         }
 212
 213         ActionSharedPtr BitmapActionFactory::createBitmapAction( const ::BitmapEx&          rBmpEx,
 214                                                                  const ::basegfx::B2DPoint& rDstPoint,
 215                                                                  const CanvasSharedPtr&     rCanvas,
 216                                                                  const OutDevState&         rState )
 217         {
 218             return ActionSharedPtr( new BitmapAction(rBmpEx,
 219                                                      rDstPoint,
 220                                                      rCanvas,
 221                                                      rState ) );
 222         }
 223
 224         ActionSharedPtr BitmapActionFactory::createBitmapAction( const ::BitmapEx&           rBmpEx,
 225                                                                  const ::basegfx::B2DPoint&  rDstPoint,
 226                                                                  const ::basegfx::B2DVector& rDstSize,
 227                                                                  const CanvasSharedPtr&      rCanvas,
 228                                                                  const OutDevState&          rState )
 229         {
 230             return ActionSharedPtr( new BitmapAction(rBmpEx,
 231                                                      rDstPoint,
 232                                                      rDstSize,
 233                                                      rCanvas,
 234                                                      rState ) );
 235         }
 236     }
 237 }
 238
 239 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */