cppcanvas/source/wrapper/implbitmap.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include "implbitmap.hxx"
  22 #include "implbitmapcanvas.hxx"
  23
  24 #include <basegfx/matrix/b2dhommatrix.hxx>
  25 #include <canvas/canvastools.hxx>
  26
  27
  28 using namespace ::com::sun::star;
  29
  30 namespace cppcanvas
  31 {
  32
  33     namespace internal
  34     {
  35
  36         ImplBitmap::ImplBitmap( const CanvasSharedPtr&                      rParentCanvas,
  37                                 const uno::Reference< rendering::XBitmap >& rBitmap ) :
  38             CanvasGraphicHelper( rParentCanvas ),
  39             mxBitmap( rBitmap ),
  40             mpBitmapCanvas()
  41         {
  42             OSL_ENSURE( mxBitmap.is(), "ImplBitmap::ImplBitmap: no valid bitmap" );
  43
  44             uno::Reference< rendering::XBitmapCanvas > xBitmapCanvas( rBitmap,
  45                                                                       uno::UNO_QUERY );
  46             if( xBitmapCanvas.is() )
  47                 mpBitmapCanvas.reset( new ImplBitmapCanvas(
  48                                           uno::Reference< rendering::XBitmapCanvas >(rBitmap,
  49                                                                                      uno::UNO_QUERY) ) );
  50         }
  51
  52         ImplBitmap::~ImplBitmap()
  53         {
  54         }
  55
  56         bool ImplBitmap::draw() const
  57         {
  58             CanvasSharedPtr pCanvas( getCanvas() );
  59
  60             OSL_ENSURE( pCanvas.get() != NULL &&
  61                         pCanvas->getUNOCanvas().is(),
  62                         "ImplBitmap::draw: invalid canvas" );
  63
  64             if( pCanvas.get() == NULL ||
  65                 !pCanvas->getUNOCanvas().is() )
  66             {
  67                 return false;
  68             }
  69
  70             // TODO(P1): implement caching
  71             pCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
  72                                                  pCanvas->getViewState(),
  73                                                  getRenderState() );
  74
  75             return true;
  76         }
  77
  78         bool ImplBitmap::drawAlphaModulated( double nAlphaModulation ) const
  79         {
  80             CanvasSharedPtr pCanvas( getCanvas() );
  81
  82             OSL_ENSURE( pCanvas.get() != NULL &&
  83                         pCanvas->getUNOCanvas().is(),
  84                         "ImplBitmap::drawAlphaModulated(): invalid canvas" );
  85
  86             if( pCanvas.get() == NULL ||
  87                 !pCanvas->getUNOCanvas().is() )
  88             {
  89                 return false;
  90             }
  91
  92             rendering::RenderState aLocalState( getRenderState() );
  93             uno::Sequence<rendering::ARGBColor> aCol(1);
  94             aCol[0] = rendering::ARGBColor( nAlphaModulation, 1.0, 1.0, 1.0 );
  95             aLocalState.DeviceColor =
  96                 pCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace()->convertFromARGB(aCol);
  97
  98             // TODO(P1): implement caching
  99             pCanvas->getUNOCanvas()->drawBitmapModulated( mxBitmap,
 100                                                           pCanvas->getViewState(),
 101                                                           aLocalState );
 102
 103             return true;
 104         }
 105
 106         BitmapCanvasSharedPtr ImplBitmap::getBitmapCanvas() const
 107         {
 108             return mpBitmapCanvas;
 109         }
 110
 111         uno::Reference< rendering::XBitmap > ImplBitmap::getUNOBitmap() const
 112         {
 113             return mxBitmap;
 114         }
 115     }
 116 }
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */