include/drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   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 #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_BACKGROUNDCOLORPRIMITIVE2D_HXX
  21 #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_BACKGROUNDCOLORPRIMITIVE2D_HXX
  22
  23 #include <drawinglayer/drawinglayerdllapi.h>
  24
  25 #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
  26 #include <basegfx/color/bcolor.hxx>
  27
  28
  29 // BackgroundColorPrimitive2D class
  30
  31 namespace drawinglayer
  32 {
  33     namespace primitive2d
  34     {
  35         /** BackgroundColorPrimitive2D class
  36
  37             This primitive is defined to fill the whole visible Viewport with
  38             the given color (and thus decomposes to a filled polygon). This
  39             makes it a view-dependent primitive by definition. It only has
  40             a valid decomposition if a valid Viewport is given in the
  41             ViewInformation2D at decomposition time.
  42
  43             It will try to buffer its last decomposition using maLastViewport
  44             to detect changes in the get2DDecomposition call.
  45          */
  46         class DRAWINGLAYER_DLLPUBLIC BackgroundColorPrimitive2D : public BufferedDecompositionPrimitive2D
  47         {
  48         private:
  49             /// the fill color to use
  50             basegfx::BColor                             maBColor;
  51             double mfTransparency;
  52
  53             /// the last used viewInformation, used from getDecomposition for buffering
  54             basegfx::B2DRange                           maLastViewport;
  55
  56         protected:
  57             /// create local decomposition
  58             virtual void create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const override;
  59
  60         public:
  61             /// constructor
  62             explicit BackgroundColorPrimitive2D(
  63                 const basegfx::BColor& rBColor,
  64                 double fTransparency = 0);
  65
  66             /// data read access
  67             const basegfx::BColor& getBColor() const { return maBColor; }
  68             double getTransparency() const { return mfTransparency; }
  69
  70             /// compare operator
  71             virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
  72
  73             /// get B2Drange
  74             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
  75
  76             /// provide unique ID
  77             DeclPrimitive2DIDBlock()
  78
  79             /// Override standard getDecomposition call to be view-dependent here
  80             virtual void get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const override;
  81         };
  82     } // end of namespace primitive2d
  83 } // end of namespace drawinglayer
  84
  85
  86 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_BACKGROUNDCOLORPRIMITIVE2D_HXX
  87
  88 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */