1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_svx.hxx"
26 
27 #include <svx/sdr/contact/viewcontactofsdrpathobj.hxx>
28 #include <svx/svdopath.hxx>
29 #include <svx/sdr/primitive2d/sdrattributecreator.hxx>
30 #include <basegfx/polygon/b2dpolypolygontools.hxx>
31 #include <svx/sdr/primitive2d/sdrpathprimitive2d.hxx>
32 #include <basegfx/matrix/b2dhommatrixtools.hxx>
33 
34 //////////////////////////////////////////////////////////////////////////////
35 
36 namespace sdr
37 {
38 	namespace contact
39 	{
ViewContactOfSdrPathObj(SdrPathObj & rPathObj)40 		ViewContactOfSdrPathObj::ViewContactOfSdrPathObj(SdrPathObj& rPathObj)
41 		:	ViewContactOfTextObj(rPathObj)
42 		{
43 		}
44 
~ViewContactOfSdrPathObj()45 		ViewContactOfSdrPathObj::~ViewContactOfSdrPathObj()
46 		{
47 		}
48 
createViewIndependentPrimitive2DSequence() const49 		drawinglayer::primitive2d::Primitive2DSequence ViewContactOfSdrPathObj::createViewIndependentPrimitive2DSequence() const
50 		{
51 			const SfxItemSet& rItemSet = GetPathObj().GetMergedItemSet();
52 			const drawinglayer::attribute::SdrLineFillShadowTextAttribute aAttribute(
53 				drawinglayer::primitive2d::createNewSdrLineFillShadowTextAttribute(
54 					rItemSet,
55 					GetPathObj().getText(0),
56                     false));
57             basegfx::B2DPolyPolygon aUnitPolyPolygon(GetPathObj().GetPathPoly());
58 			sal_uInt32 nPolyCount(aUnitPolyPolygon.count());
59 			sal_uInt32 nPointCount(0);
60 
61 			for(sal_uInt32 a(0); a < nPolyCount; a++)
62 			{
63 				nPointCount += aUnitPolyPolygon.getB2DPolygon(a).count();
64 			}
65 
66 			if(!nPointCount)
67 			{
68 				OSL_ENSURE(false, "PolyPolygon object without geometry detected, this should not be created (!)");
69 				basegfx::B2DPolygon aFallbackLine;
70 				aFallbackLine.append(basegfx::B2DPoint(0.0, 0.0));
71 				aFallbackLine.append(basegfx::B2DPoint(1000.0, 1000.0));
72 				aUnitPolyPolygon = basegfx::B2DPolyPolygon(aFallbackLine);
73 
74 				nPolyCount = 1;
75 			}
76 
77 			// prepare object transformation and unit polygon (direct model data)
78 			basegfx::B2DHomMatrix aObjectMatrix;
79 			const bool bIsLine(
80 				!aUnitPolyPolygon.areControlPointsUsed()
81 				&& 1 == nPolyCount
82 				&& 2 == aUnitPolyPolygon.getB2DPolygon(0).count());
83 
84 			if(bIsLine)
85 			{
86 				// special handling for single line mode (2 points)
87 				const basegfx::B2DPolygon aSubPolygon(aUnitPolyPolygon.getB2DPolygon(0));
88 				const basegfx::B2DPoint aStart(aSubPolygon.getB2DPoint(0));
89 				const basegfx::B2DPoint aEnd(aSubPolygon.getB2DPoint(1));
90 				const basegfx::B2DVector aLine(aEnd - aStart);
91 
92 				// #i102548# create new unit polygon for line (horizontal)
93 				basegfx::B2DPolygon aNewPolygon;
94 				aNewPolygon.append(basegfx::B2DPoint(0.0, 0.0));
95 				aNewPolygon.append(basegfx::B2DPoint(1.0, 0.0));
96 				aUnitPolyPolygon.setB2DPolygon(0, aNewPolygon);
97 
98 				// #i102548# fill objectMatrix with rotation and offset (no shear for lines)
99 				aObjectMatrix = basegfx::tools::createScaleShearXRotateTranslateB2DHomMatrix(
100 					aLine.getLength(), 1.0,
101 					0.0,
102 					atan2(aLine.getY(), aLine.getX()),
103 					aStart.getX(), aStart.getY());
104 			}
105 			else
106 			{
107 				// #i102548# create unscaled, unsheared, unrotated and untranslated polygon
108 				// (unit polygon) by creating the object matrix and back-transforming the polygon
109 				const basegfx::B2DRange aObjectRange(basegfx::tools::getRange(aUnitPolyPolygon));
110 				const GeoStat& rGeoStat(GetPathObj().GetGeoStat());
111 				const double fWidth(aObjectRange.getWidth());
112 				const double fHeight(aObjectRange.getHeight());
113 				const double fScaleX(basegfx::fTools::equalZero(fWidth) ? 1.0 : fWidth);
114 				const double fScaleY(basegfx::fTools::equalZero(fHeight) ? 1.0 : fHeight);
115 
116 				aObjectMatrix = basegfx::tools::createScaleShearXRotateTranslateB2DHomMatrix(
117 					fScaleX, fScaleY,
118 					rGeoStat.nShearWink ? tan((36000 - rGeoStat.nShearWink) * F_PI18000) : 0.0,
119 					rGeoStat.nDrehWink ? (36000 - rGeoStat.nDrehWink) * F_PI18000 : 0.0,
120 					aObjectRange.getMinX(), aObjectRange.getMinY());
121 
122 				// ceate unit polygon from object's absolute path
123 				basegfx::B2DHomMatrix aInverse(aObjectMatrix);
124 				aInverse.invert();
125 				aUnitPolyPolygon.transform(aInverse);
126 			}
127 
128 			// create primitive. Always create primitives to allow the decomposition of
129 			// SdrPathPrimitive2D to create needed invisible elements for HitTest and/or BoundRect
130 			const drawinglayer::primitive2d::Primitive2DReference xReference(
131 				new drawinglayer::primitive2d::SdrPathPrimitive2D(
132 					aObjectMatrix,
133 					aAttribute,
134 					aUnitPolyPolygon));
135 
136 			return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
137 		}
138 	} // end of namespace contact
139 } // end of namespace sdr
140 
141 //////////////////////////////////////////////////////////////////////////////
142 // eof
143