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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QREGION_H
#define QREGION_H
#include <QtCore/qatomic.h>
#include <QtCore/qrect.h>
#include <QtGui/qwindowdefs.h>
#ifndef QT_NO_DATASTREAM
#include <QtCore/qdatastream.h>
#endif
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
template <class T> class QVector;
class QVariant;
#if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_OS_WINCE)
struct QRegionPrivate;
#endif
class QBitmap;
class Q_GUI_EXPORT QRegion
{
public:
enum RegionType { Rectangle, Ellipse };
QRegion();
QRegion(int x, int y, int w, int h, RegionType t = Rectangle);
QRegion(const QRect &r, RegionType t = Rectangle);
QRegion(const QPolygon &pa, Qt::FillRule fillRule = Qt::OddEvenFill);
#ifdef QT3_SUPPORT
QT3_SUPPORT_CONSTRUCTOR QRegion(const QPolygon &pa, bool winding);
#endif
QRegion(const QRegion ®ion);
QRegion(const QBitmap &bitmap);
~QRegion();
QRegion &operator=(const QRegion &);
#ifdef QT3_SUPPORT
inline QT3_SUPPORT bool isNull() const { return isEmpty(); }
#endif
bool isEmpty() const;
bool contains(const QPoint &p) const;
bool contains(const QRect &r) const;
void translate(int dx, int dy);
inline void translate(const QPoint &p) { translate(p.x(), p.y()); }
QRegion translated(int dx, int dy) const;
inline QRegion translated(const QPoint &p) const { return translated(p.x(), p.y()); }
// ### Qt 5: make these four functions QT4_SUPPORT
QRegion unite(const QRegion &r) const;
QRegion unite(const QRect &r) const;
QRegion intersect(const QRegion &r) const;
QRegion intersect(const QRect &r) const;
QRegion subtract(const QRegion &r) const;
QRegion eor(const QRegion &r) const;
inline QRegion united(const QRegion &r) const { return unite(r); }
inline QRegion united(const QRect &r) const { return unite(r); }
inline QRegion intersected(const QRegion &r) const { return intersect(r); }
inline QRegion intersected(const QRect &r) const { return intersect(r); }
inline QRegion subtracted(const QRegion &r) const { return subtract(r); }
inline QRegion xored(const QRegion &r) const { return eor(r); }
bool intersects(const QRegion &r) const;
bool intersects(const QRect &r) const;
QRect boundingRect() const;
QVector<QRect> rects() const;
void setRects(const QRect *rect, int num);
int numRects() const;
const QRegion operator|(const QRegion &r) const;
const QRegion operator+(const QRegion &r) const;
const QRegion operator+(const QRect &r) const;
const QRegion operator&(const QRegion &r) const;
const QRegion operator&(const QRect &r) const;
const QRegion operator-(const QRegion &r) const;
const QRegion operator^(const QRegion &r) const;
QRegion& operator|=(const QRegion &r);
QRegion& operator+=(const QRegion &r);
QRegion& operator+=(const QRect &r);
QRegion& operator&=(const QRegion &r);
QRegion& operator&=(const QRect &r);
QRegion& operator-=(const QRegion &r);
QRegion& operator^=(const QRegion &r);
bool operator==(const QRegion &r) const;
inline bool operator!=(const QRegion &r) const { return !(operator==(r)); }
operator QVariant() const;
#ifdef qdoc
Handle handle() const;
#endif
#ifndef qdoc
#if defined(Q_WS_WIN)
inline HRGN handle() const { ensureHandle(); return d->rgn; }
#elif defined(Q_WS_X11)
inline Region handle() const { if(!d->rgn) updateX11Region(); return d->rgn; }
#elif defined(Q_WS_MAC)
#if defined Q_WS_MAC32
RgnHandle toQDRgn() const;
static QRegion fromQDRgn(RgnHandle shape);
#endif
#ifdef QT_MAC_USE_COCOA
inline HIMutableShapeRef handle(bool unused = false) const
{ Q_UNUSED(unused); return toHIMutableShape(); }
#else
inline RgnHandle handle() const { return handle(false); }
inline RgnHandle handle(bool) const { return toQDRgn(); }
#endif
HIMutableShapeRef toHIMutableShape() const;
static QRegion fromHIShapeRef(HIShapeRef shape);
#elif defined(Q_WS_QWS)
inline void *handle() const { return d->qt_rgn; }
#endif
#endif
#ifndef QT_NO_DATASTREAM
friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QRegion &);
friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QRegion &);
#endif
private:
QRegion copy() const; // helper of detach.
void detach();
#if defined(Q_WS_WIN)
void ensureHandle() const;
QRegion winCombine(const QRegion &r, int num) const;
#elif defined(Q_WS_X11)
void updateX11Region() const;
void *clipRectangles(int &num) const;
friend void *qt_getClipRects(const QRegion &r, int &num);
#elif defined(Q_WS_MAC)
static OSStatus shape2QRegionHelper(int inMessage, HIShapeRef inShape,
const CGRect *inRect, void *inRefcon);
#endif
friend bool qt_region_strictContains(const QRegion ®ion,
const QRect &rect);
friend struct QRegionPrivate;
#ifndef QT_NO_DATASTREAM
void exec(const QByteArray &ba, int ver = 0, QDataStream::ByteOrder byteOrder = QDataStream::BigEndian);
#endif
struct QRegionData {
QBasicAtomicInt ref;
#if defined(Q_WS_WIN)
HRGN rgn;
#elif defined(Q_WS_X11)
Region rgn;
void *xrectangles;
#elif defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
mutable RgnHandle unused; // Here for binary compatability reasons. ### Qt 5 remove.
#endif
#if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_OS_WINCE)
QRegionPrivate *qt_rgn;
#endif
};
#if defined(Q_WS_WIN)
friend class QETWidget;
#endif
struct QRegionData *d;
static struct QRegionData shared_empty;
static void cleanUp(QRegionData *x);
};
/*****************************************************************************
QRegion stream functions
*****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QRegion &);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QRegion &);
#endif
#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug, const QRegion &);
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif // QREGION_H
|
