drawinglayer/source/primitive2d/mediaprimitive2d.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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   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 #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 <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::primitive2d
  33 {
  34         void MediaPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
  35         {
  36             Primitive2DContainer xRetval;
  37             xRetval.resize(1);
  38
  39             // create background object
  40             basegfx::B2DPolygon aBackgroundPolygon(basegfx::utils::createUnitPolygon());
  41             aBackgroundPolygon.transform(getTransform());
  42             const Primitive2DReference xRefBackground(
  43                 new PolyPolygonColorPrimitive2D(
  44                     basegfx::B2DPolyPolygon(aBackgroundPolygon),
  45                     getBackgroundColor()));
  46             xRetval[0] = xRefBackground;
  47
  48             if(GraphicType::Bitmap == maSnapshot.GetType() || GraphicType::GdiMetafile == maSnapshot.GetType())
  49             {
  50                 const GraphicObject aGraphicObject(maSnapshot);
  51                 const GraphicAttr aGraphicAttr;
  52                 xRetval.resize(2);
  53                 xRetval[1] = new GraphicPrimitive2D(getTransform(), aGraphicObject, aGraphicAttr);
  54             }
  55
  56             if(getDiscreteBorder())
  57             {
  58                 const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *
  59                     basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));
  60                 const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());
  61
  62                 basegfx::B2DRange aSourceRange(0.0, 0.0, 1.0, 1.0);
  63                 aSourceRange.transform(getTransform());
  64
  65                 basegfx::B2DRange aDestRange(aSourceRange);
  66                 aDestRange.grow(-0.5 * fDiscreteSize);
  67
  68                 if(basegfx::fTools::equalZero(aDestRange.getWidth()) || basegfx::fTools::equalZero(aDestRange.getHeight()))
  69                 {
  70                     // shrunk primitive has no content (zero size in X or Y), nothing to display. Still create
  71                     // invisible content for HitTest and BoundRect
  72                     const Primitive2DReference xHiddenLines(new HiddenGeometryPrimitive2D(xRetval));
  73
  74                     xRetval = Primitive2DContainer { xHiddenLines, };
  75                 }
  76                 else
  77                 {
  78                     // create transformation matrix from original range to shrunk range
  79                     basegfx::B2DHomMatrix aTransform;
  80                     aTransform.translate(-aSourceRange.getMinX(), -aSourceRange.getMinY());
  81                     aTransform.scale(aDestRange.getWidth() / aSourceRange.getWidth(), aDestRange.getHeight() / aSourceRange.getHeight());
  82                     aTransform.translate(aDestRange.getMinX(), aDestRange.getMinY());
  83
  84                     // add transform primitive
  85                     const Primitive2DReference aScaled(new TransformPrimitive2D(aTransform, xRetval));
  86                     xRetval = Primitive2DContainer { aScaled };
  87                 }
  88             }
  89
  90             rContainer.insert(rContainer.end(), xRetval.begin(), xRetval.end());
  91         }
  92
  93         MediaPrimitive2D::MediaPrimitive2D(
  94             const basegfx::B2DHomMatrix& rTransform,
  95             const OUString& rURL,
  96             const basegfx::BColor& rBackgroundColor,
  97             sal_uInt32 nDiscreteBorder,
  98             const Graphic &rSnapshot)
  99         :   BufferedDecompositionPrimitive2D(),
 100             maTransform(rTransform),
 101             maURL(rURL),
 102             maBackgroundColor(rBackgroundColor),
 103             mnDiscreteBorder(nDiscreteBorder),
 104             maSnapshot(rSnapshot)
 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             }
 119
 120             return false;
 121         }
 122
 123         basegfx::B2DRange MediaPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
 124         {
 125             basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
 126             aRetval.transform(getTransform());
 127
 128             if(getDiscreteBorder())
 129             {
 130                 const basegfx::B2DVector aDiscreteInLogic(rViewInformation.getInverseObjectToViewTransformation() *
 131                     basegfx::B2DVector(static_cast<double>(getDiscreteBorder()), static_cast<double>(getDiscreteBorder())));
 132                 const double fDiscreteSize(aDiscreteInLogic.getX() + aDiscreteInLogic.getY());
 133
 134                 aRetval.grow(-0.5 * fDiscreteSize);
 135             }
 136
 137             return aRetval;
 138         }
 139
 140         // provide unique ID
 141         ImplPrimitive2DIDBlock(MediaPrimitive2D, PRIMITIVE2D_ID_MEDIAPRIMITIVE2D)
 142
 143 } // end of namespace
 144
 145 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */