drawinglayer/source/primitive2d/metafileprimitive2d.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.
   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 #include <drawinglayer/primitive2d/metafileprimitive2d.hxx>
  21 #include <wmfemfhelper.hxx>
  22
  23 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  24 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  25 #include <basegfx/polygon/b2dpolygontools.hxx>
  26 #include <drawinglayer/primitive2d/maskprimitive2d.hxx>
  27 #include <vcl/canvastools.hxx>
  28
  29 using namespace com::sun::star;
  30
  31 namespace drawinglayer
  32 {
  33     namespace primitive2d
  34     {
  35         void MetafilePrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
  36         {
  37             // Interpret the Metafile and get the content. There should be only one target, as in the start condition,
  38             // but iterating will be the right thing to do when some push/pop is not closed
  39             Primitive2DContainer xRetval(wmfemfhelper::interpretMetafile(getMetaFile(), rViewInformation));
  40
  41             if(!xRetval.empty())
  42             {
  43                 // get target size
  44                 const ::tools::Rectangle aMtfTarget(getMetaFile().GetPrefMapMode().GetOrigin(), getMetaFile().GetPrefSize());
  45                 const basegfx::B2DRange aMtfRange(vcl::unotools::b2DRectangleFromRectangle(aMtfTarget));
  46
  47                 // tdf#113197 get content range and check if we have an overlap with
  48                 // defined target range (aMtfRange)
  49                 if (!aMtfRange.isEmpty())
  50                 {
  51                     const basegfx::B2DRange aContentRange(xRetval.getB2DRange(rViewInformation));
  52
  53                     // also test equal since isInside gives also true for equal
  54                     if (!aMtfRange.equal(aContentRange) && !aMtfRange.isInside(aContentRange))
  55                     {
  56                         // contentRange is partly larger than aMtfRange (stuff sticks
  57                         // outside), clipping is needed
  58                         const drawinglayer::primitive2d::Primitive2DReference xMask(
  59                             new drawinglayer::primitive2d::MaskPrimitive2D(
  60                                 basegfx::B2DPolyPolygon(
  61                                     basegfx::utils::createPolygonFromRect(
  62                                         aMtfRange)),
  63                                 xRetval));
  64
  65                         xRetval = drawinglayer::primitive2d::Primitive2DContainer{ xMask };
  66                     }
  67                 }
  68
  69                 // create transformation
  70                 basegfx::B2DHomMatrix aAdaptedTransform;
  71
  72                 aAdaptedTransform.translate(-aMtfTarget.Left(), -aMtfTarget.Top());
  73                 aAdaptedTransform.scale(
  74                     aMtfTarget.getWidth() ? 1.0 / aMtfTarget.getWidth() : 1.0,
  75                     aMtfTarget.getHeight() ? 1.0 / aMtfTarget.getHeight() : 1.0);
  76                 aAdaptedTransform = getTransform() * aAdaptedTransform;
  77
  78                 // embed to target transformation
  79                 const Primitive2DReference aEmbeddedTransform(
  80                     new TransformPrimitive2D(
  81                         aAdaptedTransform,
  82                         xRetval));
  83
  84                 xRetval = Primitive2DContainer { aEmbeddedTransform };
  85             }
  86
  87             rContainer.insert(rContainer.end(), xRetval.begin(), xRetval.end());
  88         }
  89
  90         MetafilePrimitive2D::MetafilePrimitive2D(
  91             const basegfx::B2DHomMatrix& rMetaFileTransform,
  92             const GDIMetaFile& rMetaFile)
  93         :   BufferedDecompositionPrimitive2D(),
  94             maMetaFileTransform(rMetaFileTransform),
  95             maMetaFile(rMetaFile)
  96         {
  97         }
  98
  99         bool MetafilePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
 100         {
 101             if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
 102             {
 103                 const MetafilePrimitive2D& rCompare = static_cast<const MetafilePrimitive2D&>(rPrimitive);
 104
 105                 return (getTransform() == rCompare.getTransform()
 106                     && getMetaFile() == rCompare.getMetaFile());
 107             }
 108
 109             return false;
 110         }
 111
 112         basegfx::B2DRange MetafilePrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
 113         {
 114             // use own implementation to quickly answer the getB2DRange question. The
 115             // MetafilePrimitive2D assumes that all geometry is inside of the shape. If
 116             // this is not the case (i have already seen some wrong Metafiles) it should
 117             // be embedded to a MaskPrimitive2D
 118             basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
 119             aRetval.transform(getTransform());
 120
 121             return aRetval;
 122         }
 123
 124         // from MetafileAccessor
 125         void MetafilePrimitive2D::accessMetafile(GDIMetaFile& rTargetMetafile) const
 126         {
 127             rTargetMetafile = maMetaFile;
 128         }
 129
 130         // provide unique ID
 131         ImplPrimitive2DIDBlock(MetafilePrimitive2D, PRIMITIVE2D_ID_METAFILEPRIMITIVE2D)
 132
 133     } // end of namespace primitive2d
 134 } // end of namespace drawinglayer
 135
 136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */