canvas/source/cairo/cairo_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 "cairo_cachedbitmap.hxx"
  38 #include "cairo_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 ::cairo;
  48 using namespace ::com::sun::star;
  49
  50 namespace cairocanvas
  51 {
  52     CachedBitmap::CachedBitmap( const SurfaceSharedPtr&                     pSurface,
  53                                 const rendering::ViewState&                                     rUsedViewState,
  54                                 const rendering::RenderState&                           rUsedRenderState,
  55                                 const uno::Reference< rendering::XCanvas >& rTarget ) :
  56         CachedPrimitiveBase( rUsedViewState, rTarget, true ),
  57         mpSurface( pSurface ),
  58         maRenderState( rUsedRenderState )
  59     {}
  60
  61     void SAL_CALL CachedBitmap::disposing()
  62     {
  63         ::osl::MutexGuard aGuard( m_aMutex );
  64
  65         mpSurface.reset();
  66         CachedPrimitiveBase::disposing();
  67     }
  68
  69     ::sal_Int8 CachedBitmap::doRedraw( const rendering::ViewState&                                      rNewState,
  70                                        const rendering::ViewState&                                      /*rOldState*/,
  71                                        const uno::Reference< rendering::XCanvas >&      rTargetCanvas,
  72                                        bool                                                                                     bSameViewTransform )
  73     {
  74         ENSURE_OR_THROW( bSameViewTransform,
  75                           "CachedBitmap::doRedraw(): base called with changed view transform "
  76                           "(told otherwise during construction)" );
  77
  78         RepaintTarget* pTarget = dynamic_cast< RepaintTarget* >(rTargetCanvas.get());
  79
  80         ENSURE_OR_THROW( pTarget,
  81                           "CachedBitmap::redraw(): cannot cast target to RepaintTarget" );
  82
  83         if( !pTarget->repaint( mpSurface,
  84                                rNewState,
  85                                maRenderState ) )
  86         {
  87             // target failed to repaint
  88             return rendering::RepaintResult::FAILED;
  89         }
  90
  91         return rendering::RepaintResult::REDRAWN;
  92     }
  93 }