cppcanvas/source/tools/canvasgraphichelper.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_cppcanvas.hxx"
  33
  34 #include <canvasgraphichelper.hxx>
  35
  36 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  37 #include <com/sun/star/rendering/XCanvas.hpp>
  38 #include <com/sun/star/rendering/XPolyPolygon2D.hpp>
  39
  40 #include <canvas/canvastools.hxx>
  41 #include <basegfx/tools/canvastools.hxx>
  42 #include <basegfx/matrix/b2dhommatrix.hxx>
  43
  44 #include <cppcanvas/polypolygon.hxx>
  45 #include "tools.hxx"
  46
  47
  48 using namespace ::com::sun::star;
  49
  50 /* Implementation of CanvasGraphicHelper class */
  51
  52 namespace cppcanvas
  53 {
  54
  55     namespace internal
  56     {
  57         CanvasGraphicHelper::CanvasGraphicHelper( const CanvasSharedPtr& rParentCanvas ) :
  58             maClipPolyPolygon(),
  59             mpCanvas( rParentCanvas ),
  60             mxGraphicDevice()
  61         {
  62             OSL_ENSURE( mpCanvas.get() != NULL &&
  63                         mpCanvas->getUNOCanvas().is(),
  64                         "CanvasGraphicHelper::CanvasGraphicHelper: no valid canvas" );
  65
  66             if( mpCanvas.get() != NULL &&
  67                 mpCanvas->getUNOCanvas().is() )
  68             {
  69                 mxGraphicDevice = mpCanvas->getUNOCanvas()->getDevice();
  70             }
  71
  72             ::canvas::tools::initRenderState( maRenderState );
  73         }
  74
  75         void CanvasGraphicHelper::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix )
  76         {
  77             ::canvas::tools::setRenderStateTransform( maRenderState, rMatrix );
  78         }
  79
  80         ::basegfx::B2DHomMatrix CanvasGraphicHelper::getTransformation() const
  81         {
  82             ::basegfx::B2DHomMatrix aMatrix;
  83             return ::canvas::tools::getRenderStateTransform( aMatrix,
  84                                                              maRenderState );
  85         }
  86
  87         void CanvasGraphicHelper::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
  88         {
  89             // TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write
  90             maClipPolyPolygon.reset( rClipPoly );
  91             maRenderState.Clip.clear();
  92         }
  93
  94         void CanvasGraphicHelper::setClip()
  95         {
  96             maClipPolyPolygon.reset();
  97             maRenderState.Clip.clear();
  98         }
  99
 100         ::basegfx::B2DPolyPolygon const* CanvasGraphicHelper::getClip() const
 101         {
 102             return !maClipPolyPolygon ? NULL : &(*maClipPolyPolygon);
 103         }
 104
 105         const rendering::RenderState& CanvasGraphicHelper::getRenderState() const
 106         {
 107             if( maClipPolyPolygon && !maRenderState.Clip.is() )
 108             {
 109                 uno::Reference< rendering::XCanvas > xCanvas( mpCanvas->getUNOCanvas() );
 110                 if( !xCanvas.is() )
 111                     return maRenderState;
 112
 113                 maRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
 114                     xCanvas->getDevice(),
 115                     *maClipPolyPolygon );
 116             }
 117
 118             return maRenderState;
 119         }
 120
 121         void CanvasGraphicHelper::setRGBAColor( Color::IntSRGBA aColor )
 122         {
 123             maRenderState.DeviceColor = tools::intSRGBAToDoubleSequence( mxGraphicDevice,
 124                                                                          aColor );
 125         }
 126
 127         Color::IntSRGBA CanvasGraphicHelper::getRGBAColor() const
 128         {
 129             return tools::doubleSequenceToIntSRGBA( mxGraphicDevice,
 130                                                     maRenderState.DeviceColor );
 131         }
 132
 133         void CanvasGraphicHelper::setCompositeOp( CompositeOp aOp )
 134         {
 135             maRenderState.CompositeOperation = (sal_Int8)aOp;
 136         }
 137
 138         CanvasGraphic::CompositeOp CanvasGraphicHelper::getCompositeOp() const
 139         {
 140             return static_cast<CompositeOp>(maRenderState.CompositeOperation);
 141         }
 142
 143         CanvasSharedPtr CanvasGraphicHelper::getCanvas() const
 144         {
 145             return mpCanvas;
 146         }
 147
 148         uno::Reference< rendering::XGraphicDevice >     CanvasGraphicHelper::getGraphicDevice() const
 149         {
 150             return mxGraphicDevice;
 151         }
 152
 153     }
 154 }