canvas/source/directx/dx_surfacegraphics.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 "dx_surfacegraphics.hxx"
  35 #include "dx_impltools.hxx"
  36
  37 using namespace ::com::sun::star;
  38
  39 namespace dxcanvas
  40 {
  41     namespace
  42     {
  43         struct GraphicsDeleter
  44         {
  45             COMReference<surface_type> mpSurface;
  46             HDC                        maHDC;
  47
  48             GraphicsDeleter(const COMReference<surface_type>& rSurface, HDC hdc) :
  49                 mpSurface(rSurface),
  50                 maHDC(hdc)
  51             {}
  52
  53             void operator()( Gdiplus::Graphics* pGraphics )
  54             {
  55                 if(!pGraphics)
  56                     return;
  57
  58                 pGraphics->Flush(Gdiplus::FlushIntentionSync);
  59                 delete pGraphics;
  60
  61                 if(mpSurface.is())
  62                     mpSurface->ReleaseDC( maHDC );
  63             }
  64         };
  65     }
  66
  67     GraphicsSharedPtr createSurfaceGraphics(const COMReference<surface_type>& rSurface )
  68     {
  69         Gdiplus::Graphics* pGraphics;
  70         GraphicsSharedPtr  pRet;
  71         HDC aHDC;
  72         if( SUCCEEDED(rSurface->GetDC( &aHDC )) )
  73         {
  74             pGraphics = Gdiplus::Graphics::FromHDC( aHDC );
  75             if(pGraphics)
  76             {
  77                 tools::setupGraphics( *pGraphics );
  78                 pRet.reset(pGraphics,
  79                            GraphicsDeleter(rSurface, aHDC));
  80                 return pRet;
  81             }
  82             else
  83                 rSurface->ReleaseDC( aHDC );
  84         }
  85
  86         throw uno::RuntimeException();
  87     }
  88 }