cppcanvas/source/wrapper/implbitmap.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  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 <osl/diagnose.h>
  25
  26
  27 using namespace ::com::sun::star;
  28
  29 namespace cppcanvas::internal
  30 {
  31
  32         ImplBitmap::ImplBitmap( const CanvasSharedPtr&                      rParentCanvas,
  33                                 const uno::Reference< rendering::XBitmap >& rBitmap ) :
  34             CanvasGraphicHelper( rParentCanvas ),
  35             mxBitmap( rBitmap )
  36         {
  37             OSL_ENSURE( mxBitmap.is(), "ImplBitmap::ImplBitmap: no valid bitmap" );
  38
  39             uno::Reference< rendering::XBitmapCanvas > xBitmapCanvas( rBitmap,
  40                                                                       uno::UNO_QUERY );
  41             if( xBitmapCanvas.is() )
  42                 mpBitmapCanvas = std::make_shared<ImplBitmapCanvas>(
  43                                           uno::Reference< rendering::XBitmapCanvas >(rBitmap,
  44                                                                                      uno::UNO_QUERY) );
  45         }
  46
  47         ImplBitmap::~ImplBitmap()
  48         {
  49         }
  50
  51         bool ImplBitmap::draw() const
  52         {
  53             CanvasSharedPtr pCanvas( getCanvas() );
  54
  55             OSL_ENSURE( pCanvas && pCanvas->getUNOCanvas().is(),
  56                         "ImplBitmap::draw: invalid canvas" );
  57
  58             if( !pCanvas ||
  59                 !pCanvas->getUNOCanvas().is() )
  60             {
  61                 return false;
  62             }
  63
  64             // TODO(P1): implement caching
  65             pCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
  66                                                  pCanvas->getViewState(),
  67                                                  getRenderState() );
  68
  69             return true;
  70         }
  71
  72         void ImplBitmap::drawAlphaModulated( double nAlphaModulation ) const
  73         {
  74             CanvasSharedPtr pCanvas( getCanvas() );
  75
  76             OSL_ENSURE( pCanvas && pCanvas->getUNOCanvas().is(),
  77                         "ImplBitmap::drawAlphaModulated(): invalid canvas" );
  78
  79             if( !pCanvas ||
  80                 !pCanvas->getUNOCanvas().is() )
  81             {
  82                 return;
  83             }
  84
  85             rendering::RenderState aLocalState( getRenderState() );
  86             uno::Sequence<rendering::ARGBColor> aCol { { nAlphaModulation, 1.0, 1.0, 1.0 } };
  87             aLocalState.DeviceColor =
  88                 pCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace()->convertFromARGB(aCol);
  89
  90             // TODO(P1): implement caching
  91             pCanvas->getUNOCanvas()->drawBitmapModulated( mxBitmap,
  92                                                           pCanvas->getViewState(),
  93                                                           aLocalState );
  94         }
  95
  96         BitmapCanvasSharedPtr ImplBitmap::getBitmapCanvas() const
  97         {
  98             return mpBitmapCanvas;
  99         }
 100
 101         uno::Reference< rendering::XBitmap > ImplBitmap::getUNOBitmap() const
 102         {
 103             return mxBitmap;
 104         }
 105 }
 106
 107 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */