cppcanvas/source/mtfrenderer/pointaction.cxx

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  28
  29
  30 #include <rtl/logfile.hxx>
  31 #include <com/sun/star/rendering/XCanvas.hpp>
  32
  33 #include <tools/gen.hxx>
  34 #include <vcl/canvastools.hxx>
  35
  36 #include <basegfx/range/b2drange.hxx>
  37 #include <basegfx/point/b2dpoint.hxx>
  38 #include <basegfx/tools/canvastools.hxx>
  39 #include <canvas/canvastools.hxx>
  40
  41 #include <boost/utility.hpp>
  42
  43 #include "pointaction.hxx"
  44 #include "outdevstate.hxx"
  45 #include "cppcanvas/canvas.hxx"
  46 #include "mtftools.hxx"
  47
  48
  49 using namespace ::com::sun::star;
  50
  51 namespace cppcanvas
  52 {
  53     namespace internal
  54     {
  55         namespace
  56         {
  57             class PointAction : public Action, private ::boost::noncopyable
  58             {
  59             public:
  60                 PointAction( const ::basegfx::B2DPoint&,
  61                              const CanvasSharedPtr&,
  62                              const OutDevState& );
  63                 PointAction( const ::basegfx::B2DPoint&,
  64                              const CanvasSharedPtr&,
  65                              const OutDevState&,
  66                              const ::Color&     );
  67
  68                 virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const;
  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                 // default: disabled copy/assignment
  80                 PointAction(const PointAction&);
  81                 PointAction& operator = ( const PointAction& );
  82
  83                 ::basegfx::B2DPoint                         maPoint;
  84                 CanvasSharedPtr                             mpCanvas;
  85                 ::com::sun::star::rendering::RenderState    maState;
  86             };
  87
  88             PointAction::PointAction( const ::basegfx::B2DPoint& rPoint,
  89                                       const CanvasSharedPtr&     rCanvas,
  90                                       const OutDevState&         rState ) :
  91                 maPoint( rPoint ),
  92                 mpCanvas( rCanvas ),
  93                 maState()
  94             {
  95                 tools::initRenderState(maState,rState);
  96                 maState.DeviceColor = rState.lineColor;
  97             }
  98
  99             PointAction::PointAction( const ::basegfx::B2DPoint& rPoint,
 100                                       const CanvasSharedPtr&     rCanvas,
 101                                       const OutDevState&         rState,
 102                                       const ::Color&             rAltColor ) :
 103                 maPoint( rPoint ),
 104                 mpCanvas( rCanvas ),
 105                 maState()
 106             {
 107                 tools::initRenderState(maState,rState);
 108                 maState.DeviceColor = ::vcl::unotools::colorToDoubleSequence(
 109                     rAltColor,
 110                     rCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace() );
 111             }
 112
 113             bool PointAction::render( const ::basegfx::B2DHomMatrix& rTransformation ) const
 114             {
 115                 RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::PointAction::render()" );
 116                 RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::PointAction: 0x%X", this );
 117
 118                 rendering::RenderState aLocalState( maState );
 119                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 120
 121                 mpCanvas->getUNOCanvas()->drawPoint( ::basegfx::unotools::point2DFromB2DPoint(maPoint),
 122                                                      mpCanvas->getViewState(),
 123                                                      aLocalState );
 124
 125                 return true;
 126             }
 127
 128             bool PointAction::renderSubset( const ::basegfx::B2DHomMatrix&    rTransformation,
 129                                             const Subset&                     rSubset ) const
 130             {
 131                 // point only contains a single action, fail if subset
 132                 // requests different range
 133                 if( rSubset.mnSubsetBegin != 0 ||
 134                     rSubset.mnSubsetEnd != 1 )
 135                     return false;
 136
 137                 return render( rTransformation );
 138             }
 139
 140             ::basegfx::B2DRange PointAction::getBounds( const ::basegfx::B2DHomMatrix&  rTransformation ) const
 141             {
 142                 rendering::RenderState aLocalState( maState );
 143                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 144
 145                 return tools::calcDevicePixelBounds( ::basegfx::B2DRange( maPoint.getX()-1,
 146                                                                           maPoint.getY()-1,
 147                                                                           maPoint.getX()+1,
 148                                                                           maPoint.getY()+1 ),
 149                                                      mpCanvas->getViewState(),
 150                                                      aLocalState );
 151             }
 152
 153             ::basegfx::B2DRange PointAction::getBounds( const ::basegfx::B2DHomMatrix&  rTransformation,
 154                                                         const Subset&                   rSubset ) const
 155             {
 156                 // point only contains a single action, empty bounds
 157                 // if subset requests different range
 158                 if( rSubset.mnSubsetBegin != 0 ||
 159                     rSubset.mnSubsetEnd != 1 )
 160                     return ::basegfx::B2DRange();
 161
 162                 return getBounds( rTransformation );
 163             }
 164
 165             sal_Int32 PointAction::getActionCount() const
 166             {
 167                 return 1;
 168             }
 169         }
 170
 171         ActionSharedPtr PointActionFactory::createPointAction( const ::basegfx::B2DPoint& rPoint,
 172                                                                const CanvasSharedPtr&     rCanvas,
 173                                                                const OutDevState&         rState )
 174         {
 175             return ActionSharedPtr( new PointAction( rPoint, rCanvas, rState ) );
 176         }
 177
 178         ActionSharedPtr PointActionFactory::createPointAction( const ::basegfx::B2DPoint& rPoint,
 179                                                                const CanvasSharedPtr&     rCanvas,
 180                                                                const OutDevState&         rState,
 181                                                                const ::Color&             rColor    )
 182         {
 183             return ActionSharedPtr( new PointAction( rPoint, rCanvas, rState, rColor ) );
 184         }
 185     }
 186 }
 187
 188 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */