drawinglayer/source/primitive2d/BitmapAlphaPrimitive2D.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   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
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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 #include <drawinglayer/primitive2d/BitmapAlphaPrimitive2D.hxx>
  21 #include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
  22 #include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
  23 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  24 #include <com/sun/star/awt/XBitmap.hpp>
  25 #include <utility>
  26
  27 using namespace com::sun::star;
  28
  29 namespace drawinglayer::primitive2d
  30 {
  31 Primitive2DReference BitmapAlphaPrimitive2D::create2DDecomposition(
  32     const geometry::ViewInformation2D& /*rViewInformation*/) const
  33 {
  34     if (basegfx::fTools::equal(getTransparency(), 1.0))
  35     {
  36         // completely transparent, done
  37         return nullptr;
  38     }
  39
  40     if (getBitmap().IsEmpty())
  41     {
  42         // no geometry, done
  43         return nullptr;
  44     }
  45
  46     if (basegfx::fTools::equalZero(getTransparency()))
  47     {
  48         // no transparency, use simple BitmapPrimitive2D
  49         return Primitive2DReference{ new BitmapPrimitive2D(getBitmap(), getTransform()) };
  50     }
  51
  52     // default: embed to UnifiedTransparencePrimitive2D
  53     Primitive2DContainer aContent{ new BitmapPrimitive2D(getBitmap(), getTransform()) };
  54     return Primitive2DReference{ new UnifiedTransparencePrimitive2D(std::move(aContent),
  55                                                                     getTransparency()) };
  56 }
  57
  58 BitmapAlphaPrimitive2D::BitmapAlphaPrimitive2D(BitmapEx xXBitmap, basegfx::B2DHomMatrix aTransform,
  59                                                double fTransparency)
  60     : maBitmap(std::move(xXBitmap))
  61     , maTransform(std::move(aTransform))
  62     , mfTransparency(std::max(0.0, std::min(1.0, fTransparency)))
  63 {
  64 }
  65
  66 bool BitmapAlphaPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
  67 {
  68     if (BasePrimitive2D::operator==(rPrimitive))
  69     {
  70         const BitmapAlphaPrimitive2D& rCompare
  71             = static_cast<const BitmapAlphaPrimitive2D&>(rPrimitive);
  72
  73         return (getBitmap() == rCompare.getBitmap() && getTransform() == rCompare.getTransform()
  74                 && basegfx::fTools::equal(getTransparency(), rCompare.getTransparency()));
  75     }
  76
  77     return false;
  78 }
  79
  80 basegfx::B2DRange
  81 BitmapAlphaPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
  82 {
  83     basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
  84     aRetval.transform(maTransform);
  85     return aRetval;
  86 }
  87
  88 sal_Int64 BitmapAlphaPrimitive2D::estimateUsage()
  89 {
  90     if (getBitmap().IsEmpty())
  91     {
  92         return 0;
  93     }
  94     return getBitmap().GetSizeBytes();
  95 }
  96
  97 // provide unique ID
  98 sal_uInt32 BitmapAlphaPrimitive2D::getPrimitive2DID() const
  99 {
 100     return PRIMITIVE2D_ID_BITMAPALPHAPRIMITIVE2D;
 101 }
 102
 103 } // end of namespace
 104
 105 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */