1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <drawinglayer/primitive2d/helplineprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygonclipper.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
using namespace com::sun::star;
namespace drawinglayer::primitive2d
{
void HelplinePrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
{
if(rViewInformation.getViewport().isEmpty() || getDirection().equalZero())
return;
// position to view coordinates, DashLen and DashLen in logic
const basegfx::B2DPoint aViewPosition(rViewInformation.getObjectToViewTransformation() * getPosition());
switch(getStyle())
{
default : // HelplineStyle2D::Point
{
const double fViewFixValue(15.0);
basegfx::B2DVector aNormalizedDirection(getDirection());
aNormalizedDirection.normalize();
aNormalizedDirection *= fViewFixValue;
const basegfx::B2DPoint aStartA(aViewPosition - aNormalizedDirection);
const basegfx::B2DPoint aEndA(aViewPosition + aNormalizedDirection);
basegfx::B2DPolygon aLineA;
aLineA.append(aStartA);
aLineA.append(aEndA);
aLineA.transform(rViewInformation.getInverseObjectToViewTransformation());
PolygonMarkerPrimitive2D* pNewA = new PolygonMarkerPrimitive2D(aLineA, getRGBColA(), getRGBColB(), getDiscreteDashLength());
rContainer.push_back(pNewA);
const basegfx::B2DVector aPerpendicularNormalizedDirection(basegfx::getPerpendicular(aNormalizedDirection));
const basegfx::B2DPoint aStartB(aViewPosition - aPerpendicularNormalizedDirection);
const basegfx::B2DPoint aEndB(aViewPosition + aPerpendicularNormalizedDirection);
basegfx::B2DPolygon aLineB;
aLineB.append(aStartB);
aLineB.append(aEndB);
aLineB.transform(rViewInformation.getInverseObjectToViewTransformation());
PolygonMarkerPrimitive2D* pNewB = new PolygonMarkerPrimitive2D(aLineB, getRGBColA(), getRGBColB(), getDiscreteDashLength());
rContainer.push_back(pNewB);
break;
}
case HelplineStyle2D::Line :
{
basegfx::B2DPolygon aLine;
if(basegfx::areParallel(getDirection(), basegfx::B2DVector(1.0, 0.0)))
{
// parallel to X-Axis, get cuts with Y-Axes
const double fCutA((rViewInformation.getDiscreteViewport().getMinX() - aViewPosition.getX()) / getDirection().getX());
const double fCutB((rViewInformation.getDiscreteViewport().getMaxX() - aViewPosition.getX()) / getDirection().getX());
const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
const bool bBothLeft(aPosA.getX() < rViewInformation.getDiscreteViewport().getMinX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMinX());
const bool bBothRight(aPosA.getX() > rViewInformation.getDiscreteViewport().getMaxX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMaxX());
if(!bBothLeft && !bBothRight)
{
aLine.append(aPosA);
aLine.append(aPosB);
}
}
else
{
// get cuts with X-Axes
const double fCutA((rViewInformation.getDiscreteViewport().getMinY() - aViewPosition.getY()) / getDirection().getY());
const double fCutB((rViewInformation.getDiscreteViewport().getMaxY() - aViewPosition.getY()) / getDirection().getY());
const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
const bool bBothAbove(aPosA.getY() < rViewInformation.getDiscreteViewport().getMinY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMinY());
const bool bBothBelow(aPosA.getY() > rViewInformation.getDiscreteViewport().getMaxY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMaxY());
if(!bBothAbove && !bBothBelow)
{
aLine.append(aPosA);
aLine.append(aPosB);
}
}
if(aLine.count())
{
// clip against visible area
const basegfx::B2DPolyPolygon aResult(basegfx::utils::clipPolygonOnRange(aLine, rViewInformation.getDiscreteViewport(), true, true));
for(sal_uInt32 a(0); a < aResult.count(); a++)
{
basegfx::B2DPolygon aPart(aResult.getB2DPolygon(a));
aPart.transform(rViewInformation.getInverseObjectToViewTransformation());
PolygonMarkerPrimitive2D* pNew = new PolygonMarkerPrimitive2D(aPart, getRGBColA(), getRGBColB(), getDiscreteDashLength());
rContainer.push_back(pNew);
}
}
break;
}
}
}
HelplinePrimitive2D::HelplinePrimitive2D(
const basegfx::B2DPoint& rPosition,
const basegfx::B2DVector& rDirection,
HelplineStyle2D eStyle,
const basegfx::BColor& rRGBColA,
const basegfx::BColor& rRGBColB,
double fDiscreteDashLength)
: BufferedDecompositionPrimitive2D(),
maPosition(rPosition),
maDirection(rDirection),
meStyle(eStyle),
maRGBColA(rRGBColA),
maRGBColB(rRGBColB),
mfDiscreteDashLength(fDiscreteDashLength),
maLastObjectToViewTransformation(),
maLastViewport()
{
}
bool HelplinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
{
const HelplinePrimitive2D& rCompare = static_cast<const HelplinePrimitive2D&>(rPrimitive);
return (getPosition() == rCompare.getPosition()
&& getDirection() == rCompare.getDirection()
&& getStyle() == rCompare.getStyle()
&& getRGBColA() == rCompare.getRGBColA()
&& getRGBColB() == rCompare.getRGBColB()
&& getDiscreteDashLength() == rCompare.getDiscreteDashLength());
}
return false;
}
void HelplinePrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
{
::osl::MutexGuard aGuard( m_aMutex );
if(!getBuffered2DDecomposition().empty())
{
if(maLastViewport != rViewInformation.getViewport() || maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
{
// conditions of last local decomposition have changed, delete
const_cast< HelplinePrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer());
}
}
if(getBuffered2DDecomposition().empty())
{
// remember ViewRange and ViewTransformation
const_cast< HelplinePrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
const_cast< HelplinePrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
}
// use parent implementation
BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
}
// provide unique ID
ImplPrimitive2DIDBlock(HelplinePrimitive2D, PRIMITIVE2D_ID_HELPLINEPRIMITIVE2D)
} // end of namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
