Branch data Line data Source code
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/helplineprimitive2d.hxx>
21 : : #include <basegfx/polygon/b2dpolygon.hxx>
22 : : #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
23 : : #include <basegfx/polygon/b2dpolygonclipper.hxx>
24 : : #include <basegfx/tools/canvastools.hxx>
25 : : #include <drawinglayer/geometry/viewinformation2d.hxx>
26 : : #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
27 : :
28 : : //////////////////////////////////////////////////////////////////////////////
29 : :
30 : : using namespace com::sun::star;
31 : :
32 : : //////////////////////////////////////////////////////////////////////////////
33 : :
34 : : namespace drawinglayer
35 : : {
36 : : namespace primitive2d
37 : : {
38 : 0 : Primitive2DSequence HelplinePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
39 : : {
40 [ # # ]: 0 : std::vector< BasePrimitive2D* > aTempPrimitiveTarget;
41 : :
42 [ # # ][ # # ]: 0 : if(!rViewInformation.getViewport().isEmpty() && !getDirection().equalZero())
[ # # ][ # # ]
[ # # ][ # # ]
43 : : {
44 : : // position to view coordinates, DashLen and DashLen in logic
45 [ # # ][ # # ]: 0 : const basegfx::B2DPoint aViewPosition(rViewInformation.getObjectToViewTransformation() * getPosition());
46 : :
47 [ # # ]: 0 : switch(getStyle())
48 : : {
49 : : default : // HELPLINESTYLE2D_POINT
50 : : {
51 : 0 : const double fViewFixValue(15.0);
52 : 0 : basegfx::B2DVector aNormalizedDirection(getDirection());
53 [ # # ]: 0 : aNormalizedDirection.normalize();
54 : 0 : aNormalizedDirection *= fViewFixValue;
55 : 0 : const basegfx::B2DPoint aStartA(aViewPosition - aNormalizedDirection);
56 : 0 : const basegfx::B2DPoint aEndA(aViewPosition + aNormalizedDirection);
57 [ # # ]: 0 : basegfx::B2DPolygon aLineA;
58 [ # # ]: 0 : aLineA.append(aStartA);
59 [ # # ]: 0 : aLineA.append(aEndA);
60 [ # # ][ # # ]: 0 : aLineA.transform(rViewInformation.getInverseObjectToViewTransformation());
61 [ # # ]: 0 : PolygonMarkerPrimitive2D* pNewA = new PolygonMarkerPrimitive2D(aLineA, getRGBColA(), getRGBColB(), getDiscreteDashLength());
62 [ # # ]: 0 : aTempPrimitiveTarget.push_back(pNewA);
63 : :
64 [ # # ]: 0 : const basegfx::B2DVector aPerpendicularNormalizedDirection(basegfx::getPerpendicular(aNormalizedDirection));
65 : 0 : const basegfx::B2DPoint aStartB(aViewPosition - aPerpendicularNormalizedDirection);
66 : 0 : const basegfx::B2DPoint aEndB(aViewPosition + aPerpendicularNormalizedDirection);
67 [ # # ]: 0 : basegfx::B2DPolygon aLineB;
68 [ # # ]: 0 : aLineB.append(aStartB);
69 [ # # ]: 0 : aLineB.append(aEndB);
70 [ # # ][ # # ]: 0 : aLineB.transform(rViewInformation.getInverseObjectToViewTransformation());
71 [ # # ]: 0 : PolygonMarkerPrimitive2D* pNewB = new PolygonMarkerPrimitive2D(aLineB, getRGBColA(), getRGBColB(), getDiscreteDashLength());
72 [ # # ]: 0 : aTempPrimitiveTarget.push_back(pNewB);
73 : :
74 [ # # ][ # # ]: 0 : break;
75 : : }
76 : : case HELPLINESTYLE2D_LINE :
77 : : {
78 [ # # ]: 0 : basegfx::B2DPolygon aLine;
79 : :
80 [ # # ][ # # ]: 0 : if(basegfx::areParallel(getDirection(), basegfx::B2DVector(1.0, 0.0)))
81 : : {
82 : : // parallel to X-Axis, get cuts with Y-Axes
83 [ # # ][ # # ]: 0 : const double fCutA((rViewInformation.getDiscreteViewport().getMinX() - aViewPosition.getX()) / getDirection().getX());
84 [ # # ][ # # ]: 0 : const double fCutB((rViewInformation.getDiscreteViewport().getMaxX() - aViewPosition.getX()) / getDirection().getX());
85 : 0 : const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
86 : 0 : const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
87 [ # # ][ # # ]: 0 : const bool bBothLeft(aPosA.getX() < rViewInformation.getDiscreteViewport().getMinX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMinX());
[ # # ][ # # ]
[ # # ][ # # ]
88 [ # # ][ # # ]: 0 : const bool bBothRight(aPosA.getX() > rViewInformation.getDiscreteViewport().getMaxX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMaxX());
[ # # ][ # # ]
[ # # ][ # # ]
89 : :
90 [ # # ][ # # ]: 0 : if(!bBothLeft && !bBothRight)
91 : : {
92 [ # # ]: 0 : aLine.append(aPosA);
93 [ # # ]: 0 : aLine.append(aPosB);
94 : 0 : }
95 : : }
96 : : else
97 : : {
98 : : // get cuts with X-Axes
99 [ # # ][ # # ]: 0 : const double fCutA((rViewInformation.getDiscreteViewport().getMinY() - aViewPosition.getY()) / getDirection().getY());
100 [ # # ][ # # ]: 0 : const double fCutB((rViewInformation.getDiscreteViewport().getMaxY() - aViewPosition.getY()) / getDirection().getY());
101 : 0 : const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
102 : 0 : const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
103 [ # # ][ # # ]: 0 : const bool bBothAbove(aPosA.getY() < rViewInformation.getDiscreteViewport().getMinY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMinY());
[ # # ][ # # ]
[ # # ][ # # ]
104 [ # # ][ # # ]: 0 : const bool bBothBelow(aPosA.getY() > rViewInformation.getDiscreteViewport().getMaxY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMaxY());
[ # # ][ # # ]
[ # # ][ # # ]
105 : :
106 [ # # ][ # # ]: 0 : if(!bBothAbove && !bBothBelow)
107 : : {
108 [ # # ]: 0 : aLine.append(aPosA);
109 [ # # ]: 0 : aLine.append(aPosB);
110 : 0 : }
111 : : }
112 : :
113 [ # # ][ # # ]: 0 : if(aLine.count())
114 : : {
115 : : // clip against visible area
116 [ # # ][ # # ]: 0 : const basegfx::B2DPolyPolygon aResult(basegfx::tools::clipPolygonOnRange(aLine, rViewInformation.getDiscreteViewport(), true, true));
117 : :
118 [ # # ][ # # ]: 0 : for(sal_uInt32 a(0L); a < aResult.count(); a++)
119 : : {
120 [ # # ]: 0 : basegfx::B2DPolygon aPart(aResult.getB2DPolygon(a));
121 [ # # ][ # # ]: 0 : aPart.transform(rViewInformation.getInverseObjectToViewTransformation());
122 [ # # ]: 0 : PolygonMarkerPrimitive2D* pNew = new PolygonMarkerPrimitive2D(aPart, getRGBColA(), getRGBColB(), getDiscreteDashLength());
123 [ # # ]: 0 : aTempPrimitiveTarget.push_back(pNew);
124 [ # # ][ # # ]: 0 : }
125 : : }
126 : :
127 [ # # ]: 0 : break;
128 : : }
129 : 0 : }
130 : : }
131 : :
132 : : // prepare return value
133 [ # # ]: 0 : Primitive2DSequence aRetval(aTempPrimitiveTarget.size());
134 : :
135 [ # # ]: 0 : for(sal_uInt32 a(0L); a < aTempPrimitiveTarget.size(); a++)
136 : : {
137 [ # # ][ # # ]: 0 : const Primitive2DReference xRef(aTempPrimitiveTarget[a]);
[ # # ]
138 [ # # ][ # # ]: 0 : aRetval[a] = xRef;
139 : 0 : }
140 : :
141 : 0 : return aRetval;
142 : : }
143 : :
144 : 0 : HelplinePrimitive2D::HelplinePrimitive2D(
145 : : const basegfx::B2DPoint& rPosition,
146 : : const basegfx::B2DVector& rDirection,
147 : : HelplineStyle2D eStyle,
148 : : const basegfx::BColor& rRGBColA,
149 : : const basegfx::BColor& rRGBColB,
150 : : double fDiscreteDashLength)
151 : : : BufferedDecompositionPrimitive2D(),
152 : : maPosition(rPosition),
153 : : maDirection(rDirection),
154 : : meStyle(eStyle),
155 : : maRGBColA(rRGBColA),
156 : : maRGBColB(rRGBColB),
157 : : mfDiscreteDashLength(fDiscreteDashLength),
158 : : maLastObjectToViewTransformation(),
159 [ # # ][ # # ]: 0 : maLastViewport()
160 : : {
161 : 0 : }
162 : :
163 : 0 : bool HelplinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
164 : : {
165 [ # # ]: 0 : if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
166 : : {
167 : 0 : const HelplinePrimitive2D& rCompare = (HelplinePrimitive2D&)rPrimitive;
168 : :
169 : 0 : return (getPosition() == rCompare.getPosition()
170 : 0 : && getDirection() == rCompare.getDirection()
171 : 0 : && getStyle() == rCompare.getStyle()
172 : 0 : && getRGBColA() == rCompare.getRGBColA()
173 : 0 : && getRGBColB() == rCompare.getRGBColB()
174 [ # # ][ # # : 0 : && getDiscreteDashLength() == rCompare.getDiscreteDashLength());
# # # # #
# # # ]
175 : : }
176 : :
177 : 0 : return false;
178 : : }
179 : :
180 : 0 : Primitive2DSequence HelplinePrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
181 : : {
182 [ # # ]: 0 : ::osl::MutexGuard aGuard( m_aMutex );
183 : :
184 [ # # ]: 0 : if(getBuffered2DDecomposition().hasElements())
185 : : {
186 [ # # ][ # # ]: 0 : if(maLastViewport != rViewInformation.getViewport() || maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
187 : : {
188 : : // conditions of last local decomposition have changed, delete
189 [ # # ][ # # ]: 0 : const_cast< HelplinePrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
[ # # ]
190 : : }
191 : : }
192 : :
193 [ # # ]: 0 : if(!getBuffered2DDecomposition().hasElements())
194 : : {
195 : : // remember ViewRange and ViewTransformation
196 [ # # ][ # # ]: 0 : const_cast< HelplinePrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
197 [ # # ]: 0 : const_cast< HelplinePrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
198 : : }
199 : :
200 : : // use parent implementation
201 [ # # ][ # # ]: 0 : return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
202 : : }
203 : :
204 : : // provide unique ID
205 : 0 : ImplPrimitrive2DIDBlock(HelplinePrimitive2D, PRIMITIVE2D_ID_HELPLINEPRIMITIVE2D)
206 : :
207 : : } // end of namespace primitive2d
208 : : } // end of namespace drawinglayer
209 : :
210 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
