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
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSIZEPOLICY_H
#define QSIZEPOLICY_H
#include <QtCore/qobject.h>
QT_BEGIN_NAMESPACE
class QVariant;
class Q_WIDGETS_EXPORT QSizePolicy
{
Q_GADGET
Q_ENUMS(Policy)
public:
enum PolicyFlag {
GrowFlag = 1,
ExpandFlag = 2,
ShrinkFlag = 4,
IgnoreFlag = 8
};
enum Policy {
Fixed = 0,
Minimum = GrowFlag,
Maximum = ShrinkFlag,
Preferred = GrowFlag | ShrinkFlag,
MinimumExpanding = GrowFlag | ExpandFlag,
Expanding = GrowFlag | ShrinkFlag | ExpandFlag,
Ignored = ShrinkFlag | GrowFlag | IgnoreFlag
};
enum ControlType {
DefaultType = 0x00000001,
ButtonBox = 0x00000002,
CheckBox = 0x00000004,
ComboBox = 0x00000008,
Frame = 0x00000010,
GroupBox = 0x00000020,
Label = 0x00000040,
Line = 0x00000080,
LineEdit = 0x00000100,
PushButton = 0x00000200,
RadioButton = 0x00000400,
Slider = 0x00000800,
SpinBox = 0x00001000,
TabWidget = 0x00002000,
ToolButton = 0x00004000
};
Q_DECLARE_FLAGS(ControlTypes, ControlType)
QSizePolicy() : data(0) { }
QSizePolicy(Policy horizontal, Policy vertical, ControlType type = DefaultType)
: data(0) {
bits.horPolicy = horizontal;
bits.verPolicy = vertical;
setControlType(type);
}
Policy horizontalPolicy() const { return static_cast<Policy>(bits.horPolicy); }
Policy verticalPolicy() const { return static_cast<Policy>(bits.verPolicy); }
ControlType controlType() const;
void setHorizontalPolicy(Policy d) { bits.horPolicy = d; }
void setVerticalPolicy(Policy d) { bits.verPolicy = d; }
void setControlType(ControlType type);
Qt::Orientations expandingDirections() const {
Qt::Orientations result;
if (verticalPolicy() & ExpandFlag)
result |= Qt::Vertical;
if (horizontalPolicy() & ExpandFlag)
result |= Qt::Horizontal;
return result;
}
void setHeightForWidth(bool b) { bits.hfw = b; }
bool hasHeightForWidth() const { return bits.hfw; }
void setWidthForHeight(bool b) { bits.wfh = b; }
bool hasWidthForHeight() const { return bits.wfh; }
bool operator==(const QSizePolicy& s) const { return data == s.data; }
bool operator!=(const QSizePolicy& s) const { return data != s.data; }
operator QVariant() const; // implemented in qlayoutitem.cpp
int horizontalStretch() const { return static_cast<int>(bits.horStretch); }
int verticalStretch() const { return static_cast<int>(bits.verStretch); }
void setHorizontalStretch(int stretchFactor) { bits.horStretch = static_cast<quint32>(qBound(0, stretchFactor, 255)); }
void setVerticalStretch(int stretchFactor) { bits.verStretch = static_cast<quint32>(qBound(0, stretchFactor, 255)); }
bool retainSizeWhenHidden() const { return bits.retainSizeWhenHidden; }
void setRetainSizeWhenHidden(bool retainSize) { bits.retainSizeWhenHidden = retainSize; }
void transpose();
private:
#ifndef QT_NO_DATASTREAM
friend Q_WIDGETS_EXPORT QDataStream &operator<<(QDataStream &, const QSizePolicy &);
friend Q_WIDGETS_EXPORT QDataStream &operator>>(QDataStream &, QSizePolicy &);
#endif
QSizePolicy(int i) : data(i) { }
struct Bits {
quint32 horStretch : 8;
quint32 verStretch : 8;
quint32 horPolicy : 4;
quint32 verPolicy : 4;
quint32 ctype : 5;
quint32 hfw : 1;
quint32 wfh : 1;
quint32 retainSizeWhenHidden : 1;
};
union {
Bits bits;
quint32 data;
};
};
#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
// Can't add in Qt 5, as QList<QSizePolicy> would be BiC:
Q_DECLARE_TYPEINFO(QSizePolicy, Q_PRIMITIVE_TYPE);
#endif
Q_DECLARE_OPERATORS_FOR_FLAGS(QSizePolicy::ControlTypes)
#ifndef QT_NO_DATASTREAM
// implemented in qlayout.cpp
Q_WIDGETS_EXPORT QDataStream &operator<<(QDataStream &, const QSizePolicy &);
Q_WIDGETS_EXPORT QDataStream &operator>>(QDataStream &, QSizePolicy &);
#endif
#ifndef QT_NO_DEBUG_STREAM
Q_WIDGETS_EXPORT QDebug operator<<(QDebug dbg, const QSizePolicy &);
#endif
inline void QSizePolicy::transpose() {
Policy hData = horizontalPolicy();
Policy vData = verticalPolicy();
int hStretch = horizontalStretch();
int vStretch = verticalStretch();
setHorizontalPolicy(vData);
setVerticalPolicy(hData);
setHorizontalStretch(vStretch);
setVerticalStretch(hStretch);
}
QT_END_NAMESPACE
#endif // QSIZEPOLICY_H
|
