cppcanvas/source/tools/canvasgraphichelper.cxx

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  28
  29
  30 #include <canvasgraphichelper.hxx>
  31
  32 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  33 #include <com/sun/star/rendering/XCanvas.hpp>
  34 #include <com/sun/star/rendering/XPolyPolygon2D.hpp>
  35
  36 #include <canvas/canvastools.hxx>
  37 #include <basegfx/tools/canvastools.hxx>
  38 #include <basegfx/matrix/b2dhommatrix.hxx>
  39
  40 #include <cppcanvas/polypolygon.hxx>
  41 #include "tools.hxx"
  42
  43
  44 using namespace ::com::sun::star;
  45
  46 /* Implementation of CanvasGraphicHelper class */
  47
  48 namespace cppcanvas
  49 {
  50
  51     namespace internal
  52     {
  53         CanvasGraphicHelper::CanvasGraphicHelper( const CanvasSharedPtr& rParentCanvas ) :
  54             maClipPolyPolygon(),
  55             mpCanvas( rParentCanvas ),
  56             mxGraphicDevice()
  57         {
  58             OSL_ENSURE( mpCanvas.get() != NULL &&
  59                         mpCanvas->getUNOCanvas().is(),
  60                         "CanvasGraphicHelper::CanvasGraphicHelper: no valid canvas" );
  61
  62             if( mpCanvas.get() != NULL &&
  63                 mpCanvas->getUNOCanvas().is() )
  64             {
  65                 mxGraphicDevice = mpCanvas->getUNOCanvas()->getDevice();
  66             }
  67
  68             ::canvas::tools::initRenderState( maRenderState );
  69         }
  70
  71         void CanvasGraphicHelper::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix )
  72         {
  73             ::canvas::tools::setRenderStateTransform( maRenderState, rMatrix );
  74         }
  75
  76         ::basegfx::B2DHomMatrix CanvasGraphicHelper::getTransformation() const
  77         {
  78             ::basegfx::B2DHomMatrix aMatrix;
  79             return ::canvas::tools::getRenderStateTransform( aMatrix,
  80                                                              maRenderState );
  81         }
  82
  83         void CanvasGraphicHelper::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
  84         {
  85             // TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write
  86             maClipPolyPolygon.reset( rClipPoly );
  87             maRenderState.Clip.clear();
  88         }
  89
  90         void CanvasGraphicHelper::setClip()
  91         {
  92             maClipPolyPolygon.reset();
  93             maRenderState.Clip.clear();
  94         }
  95
  96         ::basegfx::B2DPolyPolygon const* CanvasGraphicHelper::getClip() const
  97         {
  98             return !maClipPolyPolygon ? NULL : &(*maClipPolyPolygon);
  99         }
 100
 101         const rendering::RenderState& CanvasGraphicHelper::getRenderState() const
 102         {
 103             if( maClipPolyPolygon && !maRenderState.Clip.is() )
 104             {
 105                 uno::Reference< rendering::XCanvas > xCanvas( mpCanvas->getUNOCanvas() );
 106                 if( !xCanvas.is() )
 107                     return maRenderState;
 108
 109                 maRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
 110                     xCanvas->getDevice(),
 111                     *maClipPolyPolygon );
 112             }
 113
 114             return maRenderState;
 115         }
 116
 117         void CanvasGraphicHelper::setRGBAColor( Color::IntSRGBA aColor )
 118         {
 119             maRenderState.DeviceColor = tools::intSRGBAToDoubleSequence( mxGraphicDevice,
 120                                                                          aColor );
 121         }
 122
 123         Color::IntSRGBA CanvasGraphicHelper::getRGBAColor() const
 124         {
 125             return tools::doubleSequenceToIntSRGBA( mxGraphicDevice,
 126                                                     maRenderState.DeviceColor );
 127         }
 128
 129         void CanvasGraphicHelper::setCompositeOp( CompositeOp aOp )
 130         {
 131             maRenderState.CompositeOperation = (sal_Int8)aOp;
 132         }
 133
 134         CanvasGraphic::CompositeOp CanvasGraphicHelper::getCompositeOp() const
 135         {
 136             return static_cast<CompositeOp>(maRenderState.CompositeOperation);
 137         }
 138
 139         CanvasSharedPtr CanvasGraphicHelper::getCanvas() const
 140         {
 141             return mpCanvas;
 142         }
 143
 144         uno::Reference< rendering::XGraphicDevice > CanvasGraphicHelper::getGraphicDevice() const
 145         {
 146             return mxGraphicDevice;
 147         }
 148
 149     }
 150 }
 151
 152 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */