drawinglayer/source/primitive2d/mediaprimitive2d.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  *
  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/mediaprimitive2d.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolygontools.hxx>
  23 #include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
  24 #include <utility>
  25 #include <vcl/GraphicObject.hxx>
  26 #include <drawinglayer/primitive2d/graphicprimitive2d.hxx>
  27 #include <drawinglayer/geometry/viewinformation2d.hxx>
  28 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  29 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  30 #include <drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx>
  31
  32
  33 namespace drawinglayer::primitive2d
  34 {
  35         void MediaPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
  36         {
  37             Primitive2DContainer xRetval;
  38             xRetval.resize(1);
  39
  40             // create background object
  41             basegfx::B2DPolygon aBackgroundPolygon(basegfx::utils::createUnitPolygon());
  42             aBackgroundPolygon.transform(getTransform());
  43             const Primitive2DReference xRefBackground(
  44                 new PolyPolygonColorPrimitive2D(
  45                     basegfx::B2DPolyPolygon(aBackgroundPolygon),
  46                     getBackgroundColor()));
  47             xRetval[0] = xRefBackground;
  48
  49             if(GraphicType::Bitmap == maSnapshot.GetType() || GraphicType::GdiMetafile == maSnapshot.GetType())
  50             {
  51                 const GraphicObject aGraphicObject(maSnapshot);
  52                 const GraphicAttr aGraphicAttr;
  53                 xRetval.resize(2);
  54                 xRetval[1] = new GraphicPrimitive2D(getTransform(), aGraphicObject, aGraphicAttr);
  55             }
  56
  57             if(getDiscreteBorder())
  58             {
  59                 const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *
  60                     basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));
  61                 const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());
  62
  63                 basegfx::B2DRange aSourceRange(0.0, 0.0, 1.0, 1.0);
  64                 aSourceRange.transform(getTransform());
  65
  66                 basegfx::B2DRange aDestRange(aSourceRange);
  67                 aDestRange.grow(-0.5 * fDiscreteSize);
  68
  69                 if(basegfx::fTools::equalZero(aDestRange.getWidth()) || basegfx::fTools::equalZero(aDestRange.getHeight()))
  70                 {
  71                     // shrunk primitive has no content (zero size in X or Y), nothing to display. Still create
  72                     // invisible content for HitTest and BoundRect
  73                     const Primitive2DReference xHiddenLines(new HiddenGeometryPrimitive2D(std::move(xRetval)));
  74
  75                     xRetval = Primitive2DContainer { xHiddenLines, };
  76                 }
  77                 else
  78                 {
  79                     // create transformation matrix from original range to shrunk range
  80                     basegfx::B2DHomMatrix aTransform;
  81                     aTransform.translate(-aSourceRange.getMinX(), -aSourceRange.getMinY());
  82                     aTransform.scale(aDestRange.getWidth() / aSourceRange.getWidth(), aDestRange.getHeight() / aSourceRange.getHeight());
  83                     aTransform.translate(aDestRange.getMinX(), aDestRange.getMinY());
  84
  85                     // add transform primitive
  86                     Primitive2DReference aScaled(new TransformPrimitive2D(aTransform, std::move(xRetval)));
  87                     xRetval = Primitive2DContainer { aScaled };
  88                 }
  89             }
  90
  91             rContainer.append(std::move(xRetval));
  92         }
  93
  94         MediaPrimitive2D::MediaPrimitive2D(
  95             basegfx::B2DHomMatrix aTransform,
  96             OUString aURL,
  97             const basegfx::BColor& rBackgroundColor,
  98             sal_uInt32 nDiscreteBorder,
  99             Graphic aSnapshot)
 100         :   maTransform(std::move(aTransform)),
 101             maURL(std::move(aURL)),
 102             maBackgroundColor(rBackgroundColor),
 103             mnDiscreteBorder(nDiscreteBorder),
 104             maSnapshot(std::move(aSnapshot))
 105         {
 106         }
 107
 108         bool MediaPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 109         {
 110             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
 111             {
 112                 const MediaPrimitive2D& rCompare = static_cast<const MediaPrimitive2D&>(rPrimitive);
 113
 114                 return (getTransform() == rCompare.getTransform()
 115                     && maURL == rCompare.maURL
 116                     && getBackgroundColor() == rCompare.getBackgroundColor()
 117                     && getDiscreteBorder() == rCompare.getDiscreteBorder()
 118                     && maSnapshot.IsNone() == rCompare.maSnapshot.IsNone());
 119             }
 120
 121             return false;
 122         }
 123
 124         basegfx::B2DRange MediaPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
 125         {
 126             basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
 127             aRetval.transform(getTransform());
 128
 129             if(getDiscreteBorder())
 130             {
 131                 const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *
 132                     basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));
 133                 const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());
 134
 135                 aRetval.grow(-0.5 * fDiscreteSize);
 136             }
 137
 138             return aRetval;
 139         }
 140
 141         // provide unique ID
 142         sal_uInt32 MediaPrimitive2D::getPrimitive2DID() const
 143         {
 144             return PRIMITIVE2D_ID_MEDIAPRIMITIVE2D;
 145         }
 146
 147 } // end of namespace
 148
 149 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */