1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtOpenGL module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
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 QGL2PEXVERTEXARRAY_P_H
52#define QGL2PEXVERTEXARRAY_P_H
53
54#include <QRectF>
55
56#include <private/qdatabuffer_p.h>
57#include <private/qvectorpath_p.h>
58#include <private/qgl_p.h>
59
60QT_BEGIN_NAMESPACE
61
62class QGLPoint
63{
64public:
65 QGLPoint(GLfloat new_x, GLfloat new_y) :
66 x(new_x), y(new_y) {};
67
68 QGLPoint(const QPointF &p) :
69 x(p.x()), y(p.y()) {};
70
71 QGLPoint(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 QGLRect
82{
83 QGLRect(const QRectF &r)
84 : left(r.left()), top(r.top()), right(r.right()), bottom(r.bottom()) {}
85
86 QGLRect(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 QGL2PEXVertexArray
98{
99public:
100 QGL2PEXVertexArray() :
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 << QGLPoint(left, top)
114 << QGLPoint(right, top)
115 << QGLPoint(right, bottom)
116 << QGLPoint(right, bottom)
117 << QGLPoint(left, bottom)
118 << QGLPoint(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 << QGLPoint(left, top)
129 << QGLPoint(right, top)
130 << QGLPoint(left, bottom)
131 << QGLPoint(right, bottom);
132
133 }
134
135 inline void addVertex(const GLfloat x, const GLfloat y)
136 {
137 vertexArray.add(QGLPoint(x, y));
138 }
139
140 void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true);
141 void clear();
142
143 QGLPoint* data() {return vertexArray.data();}
144 int *stops() const { return vertexArrayStops.data(); }
145 int stopCount() const { return vertexArrayStops.size(); }
146 QGLRect boundingRect() const;
147
148 int vertexCount() const { return vertexArray.size(); }
149
150 void lineToArray(const GLfloat x, const GLfloat y);
151
152private:
153 QDataBuffer<QGLPoint> 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