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     {
create2DDecomposition(Primitive2DContainer & rContainer,const geometry::ViewInformation2D & rViewInformation) const35         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 
MetafilePrimitive2D(const basegfx::B2DHomMatrix & rMetaFileTransform,const GDIMetaFile & rMetaFile)90         MetafilePrimitive2D::MetafilePrimitive2D(
91             const basegfx::B2DHomMatrix& rMetaFileTransform,
92             const GDIMetaFile& rMetaFile)
93         :   BufferedDecompositionPrimitive2D(),
94             maMetaFileTransform(rMetaFileTransform),
95             maMetaFile(rMetaFile)
96         {
97         }
98 
operator ==(const BasePrimitive2D & rPrimitive) const99         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 
getB2DRange(const geometry::ViewInformation2D &) const112         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
accessMetafile(GDIMetaFile & rTargetMetafile) const125         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: */
137