drawinglayer/source/primitive2d/backgroundcolorprimitive2d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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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/backgroundcolorprimitive2d.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23 #include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
  24 #include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
  25 #include <drawinglayer/geometry/viewinformation2d.hxx>
  26 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  27
  28
  29 using namespace com::sun::star;
  30
  31
  32 namespace drawinglayer::primitive2d
  33 {
  34         void BackgroundColorPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
  35         {
  36             // transparency invalid or completely transparent, done
  37             if(getTransparency() < 0.0 || getTransparency() >= 1.0)
  38                 return;
  39
  40             // no viewport, not visible, done
  41             if(rViewInformation.getViewport().isEmpty())
  42                 return;
  43
  44             // create decompose geometry
  45             const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(rViewInformation.getViewport()));
  46             Primitive2DReference aDecompose(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aOutline), getBColor()));
  47
  48             if(getTransparency() != 0.0)
  49             {
  50                 // if used, embed decompose geometry to unified transparency
  51                 Primitive2DContainer aContent { aDecompose };
  52                 aDecompose = Primitive2DReference(
  53                     new UnifiedTransparencePrimitive2D(
  54                         std::move(aContent),
  55                         getTransparency()));
  56             }
  57
  58             rContainer.push_back(aDecompose);
  59         }
  60
  61         BackgroundColorPrimitive2D::BackgroundColorPrimitive2D(
  62             const basegfx::BColor& rBColor,
  63             double fTransparency)
  64         :   maBColor(rBColor),
  65             mfTransparency(fTransparency)
  66         {
  67         }
  68
  69         bool BackgroundColorPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
  70         {
  71             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
  72             {
  73                 const BackgroundColorPrimitive2D& rCompare = static_cast<const BackgroundColorPrimitive2D&>(rPrimitive);
  74
  75                 return (getBColor() == rCompare.getBColor() && getTransparency() == rCompare.getTransparency());
  76             }
  77
  78             return false;
  79         }
  80
  81         basegfx::B2DRange BackgroundColorPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
  82         {
  83             // always as big as the view
  84             return rViewInformation.getViewport();
  85         }
  86
  87         void BackgroundColorPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
  88         {
  89             if(!getBuffered2DDecomposition().empty() && (maLastViewport != rViewInformation.getViewport()))
  90             {
  91                 // conditions of last local decomposition have changed, delete
  92                 const_cast< BackgroundColorPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer());
  93             }
  94
  95             if(getBuffered2DDecomposition().empty())
  96             {
  97                 // remember ViewRange
  98                 const_cast< BackgroundColorPrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
  99             }
 100
 101             // use parent implementation
 102             BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
 103         }
 104
 105         // provide unique ID
 106         sal_uInt32 BackgroundColorPrimitive2D::getPrimitive2DID() const
 107         {
 108             return PRIMITIVE2D_ID_BACKGROUNDCOLORPRIMITIVE2D;
 109         }
 110
 111 } // end of namespace
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */