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  *
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  12  *   contributor license agreements. See the NOTICE file distributed
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  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/polypolygonprimitive2d.hxx>
  24 #include <vcl/GraphicObject.hxx>
  25 #include <drawinglayer/primitive2d/graphicprimitive2d.hxx>
  26 #include <drawinglayer/geometry/viewinformation2d.hxx>
  27 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  28 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  29 #include <drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx>
  30
  31
  32 namespace drawinglayer
  33 {
  34     namespace primitive2d
  35     {
  36         void MediaPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
  37         {
  38             Primitive2DContainer xRetval;
  39             xRetval.resize(1);
  40
  41             // create background object
  42             basegfx::B2DPolygon aBackgroundPolygon(basegfx::utils::createUnitPolygon());
  43             aBackgroundPolygon.transform(getTransform());
  44             const Primitive2DReference xRefBackground(
  45                 new PolyPolygonColorPrimitive2D(
  46                     basegfx::B2DPolyPolygon(aBackgroundPolygon),
  47                     getBackgroundColor()));
  48             xRetval[0] = xRefBackground;
  49
  50             if(GraphicType::Bitmap == maSnapshot.GetType() || GraphicType::GdiMetafile == maSnapshot.GetType())
  51             {
  52                 const GraphicObject aGraphicObject(maSnapshot);
  53                 const GraphicAttr aGraphicAttr;
  54                 xRetval.resize(2);
  55                 xRetval[1] = new GraphicPrimitive2D(getTransform(), aGraphicObject, aGraphicAttr);
  56             }
  57
  58             if(getDiscreteBorder())
  59             {
  60                 const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *
  61                     basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));
  62                 const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());
  63
  64                 basegfx::B2DRange aSourceRange(0.0, 0.0, 1.0, 1.0);
  65                 aSourceRange.transform(getTransform());
  66
  67                 basegfx::B2DRange aDestRange(aSourceRange);
  68                 aDestRange.grow(-0.5 * fDiscreteSize);
  69
  70                 if(basegfx::fTools::equalZero(aDestRange.getWidth()) || basegfx::fTools::equalZero(aDestRange.getHeight()))
  71                 {
  72                     // shrunk primitive has no content (zero size in X or Y), nothing to display. Still create
  73                     // invisible content for HitTest and BoundRect
  74                     const Primitive2DReference xHiddenLines(new HiddenGeometryPrimitive2D(xRetval));
  75
  76                     xRetval = Primitive2DContainer { xHiddenLines, };
  77                 }
  78                 else
  79                 {
  80                     // create transformation matrix from original range to shrunk range
  81                     basegfx::B2DHomMatrix aTransform;
  82                     aTransform.translate(-aSourceRange.getMinX(), -aSourceRange.getMinY());
  83                     aTransform.scale(aDestRange.getWidth() / aSourceRange.getWidth(), aDestRange.getHeight() / aSourceRange.getHeight());
  84                     aTransform.translate(aDestRange.getMinX(), aDestRange.getMinY());
  85
  86                     // add transform primitive
  87                     const Primitive2DReference aScaled(new TransformPrimitive2D(aTransform, xRetval));
  88                     xRetval = Primitive2DContainer { aScaled };
  89                 }
  90             }
  91
  92             rContainer.insert(rContainer.end(), xRetval.begin(), xRetval.end());
  93         }
  94
  95         MediaPrimitive2D::MediaPrimitive2D(
  96             const basegfx::B2DHomMatrix& rTransform,
  97             const OUString& rURL,
  98             const basegfx::BColor& rBackgroundColor,
  99             sal_uInt32 nDiscreteBorder,
 100             const Graphic &rSnapshot)
 101         :   BufferedDecompositionPrimitive2D(),
 102             maTransform(rTransform),
 103             maURL(rURL),
 104             maBackgroundColor(rBackgroundColor),
 105             mnDiscreteBorder(nDiscreteBorder),
 106             maSnapshot(rSnapshot)
 107         {
 108         }
 109
 110         bool MediaPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 111         {
 112             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
 113             {
 114                 const MediaPrimitive2D& rCompare = static_cast<const MediaPrimitive2D&>(rPrimitive);
 115
 116                 return (getTransform() == rCompare.getTransform()
 117                     && maURL == rCompare.maURL
 118                     && getBackgroundColor() == rCompare.getBackgroundColor()
 119                     && getDiscreteBorder() == rCompare.getDiscreteBorder());
 120             }
 121
 122             return false;
 123         }
 124
 125         basegfx::B2DRange MediaPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
 126         {
 127             basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
 128             aRetval.transform(getTransform());
 129
 130             if(getDiscreteBorder())
 131             {
 132                 const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *
 133                     basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));
 134                 const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());
 135
 136                 aRetval.grow(-0.5 * fDiscreteSize);
 137             }
 138
 139             return aRetval;
 140         }
 141
 142         // provide unique ID
 143         ImplPrimitive2DIDBlock(MediaPrimitive2D, PRIMITIVE2D_ID_MEDIAPRIMITIVE2D)
 144
 145     } // end of namespace primitive2d
 146 } // end of namespace drawinglayer
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */