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39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49//
50
51#ifndef QOPENGL2PEXVERTEXARRAY_P_H
52#define QOPENGL2PEXVERTEXARRAY_P_H
53
54#include <QRectF>
55
56#include <private/qdatabuffer_p.h>
57#include <private/qvectorpath_p.h>
58#include <private/qopenglcontext_p.h>
59
60QT_BEGIN_NAMESPACE
61
62class QOpenGLPoint
63{
64public:
65 QOpenGLPoint(GLfloat new_x, GLfloat new_y) :
66 x(new_x), y(new_y) {}
67
68 QOpenGLPoint(const QPointF &p) :
69 x(p.x()), y(p.y()) {}
70
71 QOpenGLPoint(const QPointF* p) :
72 x(p->x()), y(p->y()) {}
73
74 GLfloat x;
75 GLfloat y;
76
77 operator QPointF() {return QPointF(x,y);}
78 operator QPointF() const {return QPointF(x,y);}
79};
80
81struct QOpenGLRect
82{
83 QOpenGLRect(const QRectF &r)
84 : left(r.left()), top(r.top()), right(r.right()), bottom(r.bottom()) {}
85
86 QOpenGLRect(GLfloat l, GLfloat t, GLfloat r, GLfloat b)
87 : left(l), top(t), right(r), bottom(b) {}
88
89 GLfloat left;
90 GLfloat top;
91 GLfloat right;
92 GLfloat bottom;
93
94 operator QRectF() const {return QRectF(left, top, right-left, bottom-top);}
95};
96
97class QOpenGL2PEXVertexArray
98{
99public:
100 QOpenGL2PEXVertexArray() :
101 vertexArray(0), vertexArrayStops(0),
102 maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10),
103 boundingRectDirty(true)
104 { }
105
106 inline void addRect(const QRectF &rect)
107 {
108 qreal top = rect.top();
109 qreal left = rect.left();
110 qreal bottom = rect.bottom();
111 qreal right = rect.right();
112
113 vertexArray << QOpenGLPoint(left, top)
114 << QOpenGLPoint(right, top)
115 << QOpenGLPoint(right, bottom)
116 << QOpenGLPoint(right, bottom)
117 << QOpenGLPoint(left, bottom)
118 << QOpenGLPoint(left, top);
119 }
120
121 inline void addQuad(const QRectF &rect)
122 {
123 qreal top = rect.top();
124 qreal left = rect.left();
125 qreal bottom = rect.bottom();
126 qreal right = rect.right();
127
128 vertexArray << QOpenGLPoint(left, top)
129 << QOpenGLPoint(right, top)
130 << QOpenGLPoint(left, bottom)
131 << QOpenGLPoint(right, bottom);
132
133 }
134
135 inline void addVertex(const GLfloat x, const GLfloat y)
136 {
137 vertexArray.add(QOpenGLPoint(x, y));
138 }
139
140 void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true);
141 void clear();
142
143 QOpenGLPoint* data() {return vertexArray.data();}
144 int *stops() const { return vertexArrayStops.data(); }
145 int stopCount() const { return vertexArrayStops.size(); }
146 QOpenGLRect boundingRect() const;
147
148 int vertexCount() const { return vertexArray.size(); }
149
150 void lineToArray(const GLfloat x, const GLfloat y);
151
152private:
153 QDataBuffer<QOpenGLPoint> vertexArray;
154 QDataBuffer<int> vertexArrayStops;
155
156 GLfloat maxX;
157 GLfloat maxY;
158 GLfloat minX;
159 GLfloat minY;
160 bool boundingRectDirty;
161 void addClosingLine(int index);
162 void addCentroid(const QVectorPath &path, int subPathIndex);
163};
164
165QT_END_NAMESPACE
166
167#endif
168