vcl/source/graphic/UnoGraphicTransformer.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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  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 <graphic/UnoGraphicTransformer.hxx>
  22
  23 #include <vcl/graph.hxx>
  24 #include <vcl/BitmapColor.hxx>
  25 #include <vcl/BitmapDuoToneFilter.hxx>
  26
  27 using namespace com::sun::star;
  28
  29 namespace unographic {
  30
  31
  32 GraphicTransformer::GraphicTransformer()
  33 {
  34 }
  35
  36
  37 GraphicTransformer::~GraphicTransformer()
  38 {
  39 }
  40
  41
  42 // XGraphicTransformer
  43 uno::Reference< graphic::XGraphic > SAL_CALL GraphicTransformer::colorChange(
  44     const uno::Reference< graphic::XGraphic >& rxGraphic, sal_Int32 nColorFrom, sal_Int8 nTolerance, sal_Int32 nColorTo, sal_Int8 nAlphaTo )
  45 {
  46     ::Graphic aGraphic(rxGraphic);
  47     ::Graphic aReturnGraphic;
  48
  49     BitmapColor aBmpColorFrom(static_cast< sal_uInt8 >(nColorFrom), static_cast< sal_uInt8 >(nColorFrom >> 8), static_cast< sal_uInt8 >(nColorFrom >> 16));
  50     BitmapColor aBmpColorTo( static_cast< sal_uInt8 >(nColorTo), static_cast< sal_uInt8 >(nColorTo >> 8), static_cast< sal_uInt8 >(nColorTo  >> 16));
  51
  52     Color aColorFrom(aBmpColorFrom);
  53     Color aColorTo(aBmpColorTo);
  54
  55     const sal_uInt8 cIndexFrom = aBmpColorFrom.GetIndex();
  56
  57     if (aGraphic.GetType() == GraphicType::Bitmap ||
  58         aGraphic.GetType() == GraphicType::GdiMetafile)
  59     {
  60         BitmapEx aBitmapEx(aGraphic.GetBitmapEx());
  61         Bitmap aBitmap(aBitmapEx.GetBitmap());
  62
  63         if (aBitmapEx.IsAlpha())
  64         {
  65             aBitmapEx.setAlphaFrom( cIndexFrom, nAlphaTo );
  66             aBitmapEx.Replace(aColorFrom, aColorTo, nTolerance);
  67             aReturnGraphic = ::Graphic(aBitmapEx);
  68         }
  69         else if (aBitmapEx.IsTransparent())
  70         {
  71             if (nAlphaTo == sal::static_int_cast< sal_Int8 >(0xff))
  72             {
  73                 Bitmap aMask(aBitmapEx.GetMask());
  74                 Bitmap aMask2(aBitmap.CreateMask(aColorFrom, nTolerance));
  75                 aMask.CombineSimple(aMask2, BmpCombine::Or);
  76                 aBitmap.Replace(aColorFrom, aColorTo, nTolerance);
  77                 aReturnGraphic = ::Graphic(BitmapEx(aBitmap, aMask));
  78             }
  79             else
  80             {
  81                 aBitmapEx.setAlphaFrom(cIndexFrom, 0xff - nAlphaTo);
  82                 aBitmapEx.Replace(aColorFrom, aColorTo, nTolerance);
  83                 aReturnGraphic = ::Graphic(aBitmapEx);
  84             }
  85         }
  86         else
  87         {
  88             if ((nAlphaTo == 0) || (nAlphaTo == sal::static_int_cast< sal_Int8 >(0xff)))
  89             {
  90                 Bitmap aMask(aBitmap.CreateMask(aColorFrom, nTolerance));
  91                 aBitmap.Replace(aColorFrom, aColorTo, nTolerance);
  92                 aReturnGraphic = ::Graphic(BitmapEx(aBitmap, aMask));
  93             }
  94             else
  95             {
  96                 aBitmapEx.setAlphaFrom(cIndexFrom, nAlphaTo);
  97                 aBitmapEx.Replace(aColorFrom, aColorTo, nTolerance);
  98                 aReturnGraphic = ::Graphic(aBitmapEx);
  99             }
 100         }
 101     }
 102
 103     aReturnGraphic.setOriginURL(aGraphic.getOriginURL());
 104     return aReturnGraphic.GetXGraphic();
 105 }
 106
 107 uno::Reference< graphic::XGraphic > SAL_CALL GraphicTransformer::applyDuotone(
 108     const uno::Reference< graphic::XGraphic >& rxGraphic, sal_Int32 nColorOne, sal_Int32 nColorTwo )
 109 {
 110     ::Graphic aGraphic(rxGraphic);
 111     ::Graphic aReturnGraphic;
 112
 113     BitmapEx    aBitmapEx( aGraphic.GetBitmapEx() );
 114     AlphaMask   aMask( aBitmapEx.GetAlpha() );
 115     Bitmap      aBitmap( aBitmapEx.GetBitmap() );
 116
 117     BitmapEx    aTmpBmpEx(aBitmap);
 118     BitmapFilter::Filter(aTmpBmpEx, BitmapDuoToneFilter(static_cast<sal_uLong>(nColorOne), static_cast<sal_uLong>(nColorTwo)));
 119     aBitmap = aTmpBmpEx.GetBitmap();
 120
 121     aReturnGraphic = ::Graphic( BitmapEx( aBitmap, aMask ) );
 122     aReturnGraphic.setOriginURL(aGraphic.getOriginURL());
 123     return aReturnGraphic.GetXGraphic();
 124 }
 125
 126 uno::Reference< graphic::XGraphic > SAL_CALL GraphicTransformer::applyBrightnessContrast(
 127     const uno::Reference< graphic::XGraphic >& rxGraphic, sal_Int32 nBrightness, sal_Int32 nContrast, sal_Bool mso )
 128 {
 129     ::Graphic aGraphic(rxGraphic);
 130     ::Graphic aReturnGraphic;
 131
 132     BitmapEx aBitmapEx(aGraphic.GetBitmapEx());
 133     aBitmapEx.Adjust(nBrightness, nContrast, 0, 0, 0, 0, false, mso);
 134     aReturnGraphic = ::Graphic(aBitmapEx);
 135     aReturnGraphic.setOriginURL(aGraphic.getOriginURL());
 136     return aReturnGraphic.GetXGraphic();
 137 }
 138
 139 }
 140
 141 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */