canvas/source/vcl/cachedbitmap.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_canvas.hxx"
  33
  34 #include <canvas/debug.hxx>
  35 #include <tools/diagnose_ex.h>
  36
  37 #include "cachedbitmap.hxx"
  38 #include "repainttarget.hxx"
  39
  40 #include <com/sun/star/rendering/RepaintResult.hpp>
  41 #include <com/sun/star/rendering/XPolyPolygon2D.hpp>
  42
  43 #include <basegfx/matrix/b2dhommatrix.hxx>
  44 #include <basegfx/tools/canvastools.hxx>
  45
  46
  47 using namespace ::com::sun::star;
  48
  49 namespace vclcanvas
  50 {
  51     CachedBitmap::CachedBitmap( const GraphicObjectSharedPtr&                           rGraphicObject,
  52                                 const ::Point&                                                          rPoint,
  53                                 const ::Size&                                                           rSize,
  54                                 const GraphicAttr&                                                      rAttr,
  55                                 const rendering::ViewState&                                     rUsedViewState,
  56                                 const rendering::RenderState&                           rUsedRenderState,
  57                                 const uno::Reference< rendering::XCanvas >& rTarget ) :
  58         CachedPrimitiveBase( rUsedViewState, rTarget, true ),
  59         mpGraphicObject( rGraphicObject ),
  60         maRenderState(rUsedRenderState),
  61         maPoint( rPoint ),
  62         maSize( rSize ),
  63         maAttributes( rAttr )
  64     {
  65     }
  66
  67     void SAL_CALL CachedBitmap::disposing()
  68     {
  69         ::osl::MutexGuard aGuard( m_aMutex );
  70
  71         mpGraphicObject.reset();
  72
  73         CachedPrimitiveBase::disposing();
  74     }
  75
  76     ::sal_Int8 CachedBitmap::doRedraw( const rendering::ViewState&                                      rNewState,
  77                                        const rendering::ViewState&                                      rOldState,
  78                                        const uno::Reference< rendering::XCanvas >&      rTargetCanvas,
  79                                        bool                                                                                     bSameViewTransform )
  80     {
  81         ENSURE_OR_THROW( bSameViewTransform,
  82                          "CachedBitmap::doRedraw(): base called with changed view transform "
  83                          "(told otherwise during construction)" );
  84
  85         // TODO(P1): Could adapt to modified clips as well
  86         if( rNewState.Clip != rOldState.Clip )
  87             return rendering::RepaintResult::FAILED;
  88
  89         RepaintTarget* pTarget = dynamic_cast< RepaintTarget* >(rTargetCanvas.get());
  90
  91         ENSURE_OR_THROW( pTarget,
  92                           "CachedBitmap::redraw(): cannot cast target to RepaintTarget" );
  93
  94         if( !pTarget->repaint( mpGraphicObject,
  95                                rNewState,
  96                                maRenderState,
  97                                maPoint,
  98                                maSize,
  99                                maAttributes ) )
 100         {
 101             // target failed to repaint
 102             return rendering::RepaintResult::FAILED;
 103         }
 104
 105         return rendering::RepaintResult::REDRAWN;
 106     }
 107 }