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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVECTORPATH_P_H
#define QVECTORPATH_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qpaintengine.h>
#include <private/qpaintengine_p.h>
#include <private/qstroker_p.h>
#include <private/qpainter_p.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QPaintEngineEx;
typedef void (*qvectorpath_cache_cleanup)(QPaintEngineEx *engine, void *data);
struct QRealRect {
qreal x1, y1, x2, y2;
};
class Q_GUI_EXPORT QVectorPath
{
public:
enum Hint {
// Shape hints, in 0x000000ff, access using shape()
AreaShapeMask = 0x0001, // shape covers an area
NonConvexShapeMask = 0x0002, // shape is not convex
CurvedShapeMask = 0x0004, // shape contains curves...
LinesShapeMask = 0x0008,
RectangleShapeMask = 0x0010,
ShapeMask = 0x001f,
// Shape hints merged into basic shapes..
LinesHint = LinesShapeMask,
RectangleHint = AreaShapeMask | RectangleShapeMask,
EllipseHint = AreaShapeMask | CurvedShapeMask,
ConvexPolygonHint = AreaShapeMask,
PolygonHint = AreaShapeMask | NonConvexShapeMask,
RoundedRectHint = AreaShapeMask | CurvedShapeMask,
ArbitraryShapeHint = AreaShapeMask | NonConvexShapeMask | CurvedShapeMask,
// Other hints
IsCachedHint = 0x0100, // Set if the cache hint is set
ShouldUseCacheHint = 0x0200, // Set if the path should be cached when possible..
ControlPointRect = 0x0400, // Set if the control point rect has been calculated...
// Shape rendering specifiers...
OddEvenFill = 0x1000,
WindingFill = 0x2000,
ImplicitClose = 0x4000
};
// ### Falcon: introduca a struct XY for points so lars is not so confused...
QVectorPath(const qreal *points,
int count,
const QPainterPath::ElementType *elements = 0,
uint hints = ArbitraryShapeHint)
: m_elements(elements),
m_points(points),
m_count(count),
m_hints(hints)
{
}
~QVectorPath();
QRectF controlPointRect() const;
inline Hint shape() const { return (Hint) (m_hints & ShapeMask); }
inline bool isConvex() const { return (m_hints & NonConvexShapeMask) == 0; }
inline bool isCurved() const { return m_hints & CurvedShapeMask; }
inline bool isCacheable() const { return m_hints & ShouldUseCacheHint; }
inline bool hasImplicitClose() const { return m_hints & ImplicitClose; }
inline bool hasWindingFill() const { return m_hints & WindingFill; }
inline void makeCacheable() const { m_hints |= ShouldUseCacheHint; m_cache = 0; }
inline uint hints() const { return m_hints; }
inline const QPainterPath::ElementType *elements() const { return m_elements; }
inline const qreal *points() const { return m_points; }
inline bool isEmpty() const { return m_points == 0; }
inline int elementCount() const { return m_count; }
inline const QPainterPath convertToPainterPath() const;
static inline uint polygonFlags(QPaintEngine::PolygonDrawMode mode);
struct CacheEntry {
QPaintEngineEx *engine;
void *data;
qvectorpath_cache_cleanup cleanup;
CacheEntry *next;
};
CacheEntry *addCacheData(QPaintEngineEx *engine, void *data, qvectorpath_cache_cleanup cleanup) const;
inline CacheEntry *lookupCacheData(QPaintEngineEx *engine) const {
Q_ASSERT(m_hints & ShouldUseCacheHint);
CacheEntry *e = m_cache;
while (e) {
if (e->engine == engine)
return e;
e = e->next;
}
return 0;
}
private:
Q_DISABLE_COPY(QVectorPath)
const QPainterPath::ElementType *m_elements;
const qreal *m_points;
const int m_count;
mutable uint m_hints;
mutable QRealRect m_cp_rect;
mutable CacheEntry *m_cache;
};
Q_GUI_EXPORT const QVectorPath &qtVectorPathForPath(const QPainterPath &path);
QT_END_NAMESPACE
QT_END_HEADER
#endif
|
