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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 QWIDGETRESIZEHANDLER_P_H
#define QWIDGETRESIZEHANDLER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. This header file may
// change from version to version without notice, or even be
// removed.
//
// We mean it.
//
#include "QtCore/qobject.h"
#include "QtCore/qpoint.h"
#ifndef QT_NO_RESIZEHANDLER
QT_BEGIN_NAMESPACE
class QMouseEvent;
class QKeyEvent;
class Q_GUI_EXPORT QWidgetResizeHandler : public QObject
{
Q_OBJECT
public:
enum Action {
Move = 0x01,
Resize = 0x02,
Any = Move|Resize
};
explicit QWidgetResizeHandler(QWidget *parent, QWidget *cw = 0);
void setActive(bool b) { setActive(Any, b); }
void setActive(Action ac, bool b);
bool isActive() const { return isActive(Any); }
bool isActive(Action ac) const;
void setMovingEnabled(bool b) { movingEnabled = b; }
bool isMovingEnabled() const { return movingEnabled; }
bool isButtonDown() const { return buttonDown; }
void setExtraHeight(int h) { extrahei = h; }
void setSizeProtection(bool b) { sizeprotect = b; }
void setFrameWidth(int w) { fw = w; }
void doResize();
void doMove();
Q_SIGNALS:
void activate();
protected:
bool eventFilter(QObject *o, QEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void keyPressEvent(QKeyEvent *e);
private:
Q_DISABLE_COPY(QWidgetResizeHandler)
enum MousePosition {
Nowhere,
TopLeft, BottomRight, BottomLeft, TopRight,
Top, Bottom, Left, Right,
Center
};
QWidget *widget;
QWidget *childWidget;
QPoint moveOffset;
QPoint invertedMoveOffset;
MousePosition mode;
int fw;
int extrahei;
int range;
uint buttonDown :1;
uint moveResizeMode :1;
uint activeForResize :1;
uint sizeprotect :1;
uint movingEnabled :1;
uint activeForMove :1;
void setMouseCursor(MousePosition m);
bool isMove() const {
return moveResizeMode && mode == Center;
}
bool isResize() const {
return moveResizeMode && !isMove();
}
};
QT_END_NAMESPACE
#endif // QT_NO_RESIZEHANDLER
#endif // QWIDGETRESIZEHANDLER_P_H
|
