qopengl2pexvertexarray.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
5**-
6** This file is part of the QtGui module of the Qt Toolkit.-
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28** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.-
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30** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33-
34#include "qopengl2pexvertexarray_p.h"-
35-
36#include <private/qbezier_p.h>-
37-
38QT_BEGIN_NAMESPACE-
39-
40void QOpenGL2PEXVertexArray::clear()-
41{-
42 vertexArray.reset();-
43 vertexArrayStops.reset();-
44 boundingRectDirty = true;-
45}
never executed: end of block
0
46-
47-
48QOpenGLRect QOpenGL2PEXVertexArray::boundingRect() const-
49{-
50 if (boundingRectDirty)
boundingRectDirtyDescription
TRUEnever evaluated
FALSEnever evaluated
0
51 return QOpenGLRect(0.0, 0.0, 0.0, 0.0);
never executed: return QOpenGLRect(0.0, 0.0, 0.0, 0.0);
0
52 else-
53 return QOpenGLRect(minX, minY, maxX, maxY);
never executed: return QOpenGLRect(minX, minY, maxX, maxY);
0
54}-
55-
56void QOpenGL2PEXVertexArray::addClosingLine(int index)-
57{-
58 QPointF point(vertexArray.at(index));-
59 if (point != QPointF(vertexArray.last()))
point != QPoin...xArray.last())Description
TRUEnever evaluated
FALSEnever evaluated
0
60 vertexArray.add(point);
never executed: vertexArray.add(point);
0
61}
never executed: end of block
0
62-
63void QOpenGL2PEXVertexArray::addCentroid(const QVectorPath &path, int subPathIndex)-
64{-
65 const QPointF *const points = reinterpret_cast<const QPointF *>(path.points());-
66 const QPainterPath::ElementType *const elements = path.elements();-
67-
68 QPointF sum = points[subPathIndex];-
69 int count = 1;-
70-
71 for (int i = subPathIndex + 1; i < path.elementCount() && (!elements || elements[i] != QPainterPath::MoveToElement); ++i) {
i < path.elementCount()Description
TRUEnever evaluated
FALSEnever evaluated
!elementsDescription
TRUEnever evaluated
FALSEnever evaluated
elements[i] !=...:MoveToElementDescription
TRUEnever evaluated
FALSEnever evaluated
0
72 sum += points[i];-
73 ++count;-
74 }
never executed: end of block
0
75-
76 const QPointF centroid = sum / qreal(count);-
77 vertexArray.add(centroid);-
78}
never executed: end of block
0
79-
80void QOpenGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline)-
81{-
82 const QPointF* const points = reinterpret_cast<const QPointF*>(path.points());-
83 const QPainterPath::ElementType* const elements = path.elements();-
84-
85 if (boundingRectDirty) {
boundingRectDirtyDescription
TRUEnever evaluated
FALSEnever evaluated
0
86 minX = maxX = points[0].x();-
87 minY = maxY = points[0].y();-
88 boundingRectDirty = false;-
89 }
never executed: end of block
0
90-
91 if (!outline && !path.isConvex())
!outlineDescription
TRUEnever evaluated
FALSEnever evaluated
!path.isConvex()Description
TRUEnever evaluated
FALSEnever evaluated
0
92 addCentroid(path, 0);
never executed: addCentroid(path, 0);
0
93-
94 int lastMoveTo = vertexArray.size();-
95 vertexArray.add(points[0]); // The first element is always a moveTo-
96-
97 do {-
98 if (!elements) {
!elementsDescription
TRUEnever evaluated
FALSEnever evaluated
0
99// qDebug("QVectorPath has no elements");-
100 // If the path has a null elements pointer, the elements implicitly-
101 // start with a moveTo (already added) and continue with lineTos:-
102 for (int i=1; i<path.elementCount(); ++i)
i<path.elementCount()Description
TRUEnever evaluated
FALSEnever evaluated
0
103 lineToArray(points[i].x(), points[i].y());
never executed: lineToArray(points[i].x(), points[i].y());
0
104-
105 break;
never executed: break;
0
106 }-
107// qDebug("QVectorPath has element types");-
108-
109 for (int i=1; i<path.elementCount(); ++i) {
i<path.elementCount()Description
TRUEnever evaluated
FALSEnever evaluated
0
110 switch (elements[i]) {-
111 case QPainterPath::MoveToElement:
never executed: case QPainterPath::MoveToElement:
0
112 if (!outline)
!outlineDescription
TRUEnever evaluated
FALSEnever evaluated
0
113 addClosingLine(lastMoveTo);
never executed: addClosingLine(lastMoveTo);
0
114// qDebug("element[%d] is a MoveToElement", i);-
115 vertexArrayStops.add(vertexArray.size());-
116 if (!outline) {
!outlineDescription
TRUEnever evaluated
FALSEnever evaluated
0
117 if (!path.isConvex()) addCentroid(path, i);
never executed: addCentroid(path, i);
!path.isConvex()Description
TRUEnever evaluated
FALSEnever evaluated
0
118 lastMoveTo = vertexArray.size();-
119 }
never executed: end of block
0
120 lineToArray(points[i].x(), points[i].y()); // Add the moveTo as a new vertex-
121 break;
never executed: break;
0
122 case QPainterPath::LineToElement:
never executed: case QPainterPath::LineToElement:
0
123// qDebug("element[%d] is a LineToElement", i);-
124 lineToArray(points[i].x(), points[i].y());-
125 break;
never executed: break;
0
126 case QPainterPath::CurveToElement: {
never executed: case QPainterPath::CurveToElement:
0
127 QBezier b = QBezier::fromPoints(*(((const QPointF *) points) + i - 1),-
128 points[i],-
129 points[i+1],-
130 points[i+2]);-
131 QRectF bounds = b.bounds();-
132 // threshold based on same algorithm as in qtriangulatingstroker.cpp-
133 int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * 3.14f / (curveInverseScale * 6));-
134 if (threshold < 3) threshold = 3;
never executed: threshold = 3;
threshold < 3Description
TRUEnever evaluated
FALSEnever evaluated
0
135 qreal one_over_threshold_minus_1 = qreal(1) / (threshold - 1);-
136 for (int t=0; t<threshold; ++t) {
t<thresholdDescription
TRUEnever evaluated
FALSEnever evaluated
0
137 QPointF pt = b.pointAt(t * one_over_threshold_minus_1);-
138 lineToArray(pt.x(), pt.y());-
139 }
never executed: end of block
0
140 i += 2;-
141 break; }
never executed: break;
0
142 default:
never executed: default:
0
143 break;
never executed: break;
0
144 }-
145 }-
146 } while (0);-
147-
148 if (!outline)
!outlineDescription
TRUEnever evaluated
FALSEnever evaluated
0
149 addClosingLine(lastMoveTo);
never executed: addClosingLine(lastMoveTo);
0
150 vertexArrayStops.add(vertexArray.size());-
151}
never executed: end of block
0
152-
153void QOpenGL2PEXVertexArray::lineToArray(const GLfloat x, const GLfloat y)-
154{-
155 vertexArray.add(QOpenGLPoint(x, y));-
156-
157 if (x > maxX)
x > maxXDescription
TRUEnever evaluated
FALSEnever evaluated
0
158 maxX = x;
never executed: maxX = x;
0
159 else if (x < minX)
x < minXDescription
TRUEnever evaluated
FALSEnever evaluated
0
160 minX = x;
never executed: minX = x;
0
161 if (y > maxY)
y > maxYDescription
TRUEnever evaluated
FALSEnever evaluated
0
162 maxY = y;
never executed: maxY = y;
0
163 else if (y < minY)
y < minYDescription
TRUEnever evaluated
FALSEnever evaluated
0
164 minY = y;
never executed: minY = y;
0
165}
never executed: end of block
0
166-
167QT_END_NAMESPACE-
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