1 /****************************************************************************
2 **
3 ** Copyright (C) 2015 The Qt Company Ltd.
4 ** Contact: http://www.qt.io/licensing/
5 **
6 ** This file is part of the QtCore 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 http://www.qt.io/terms-conditions. For further
15 ** information use the contact form at http://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 2.1 or version 3 as published by the Free
20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
22 ** following information to ensure the GNU Lesser General Public License
23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
25 **
26 ** As a special exception, The Qt Company gives you certain additional
27 ** rights. These rights are described in The Qt Company LGPL Exception
28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
29 **
30 ** GNU General Public License Usage
31 ** Alternatively, this file may be used under the terms of the GNU
32 ** General Public License version 3.0 as published by the Free Software
33 ** Foundation and appearing in the file LICENSE.GPL included in the
34 ** packaging of this file.  Please review the following information to
35 ** ensure the GNU General Public License version 3.0 requirements will be
36 ** met: http://www.gnu.org/copyleft/gpl.html.
37 **
38 ** $QT_END_LICENSE$
39 **
40 ****************************************************************************/
41 
42 #ifndef QMARGINS_H
43 #define QMARGINS_H
44 
45 #include <QtCore/qnamespace.h>
46 
47 QT_BEGIN_HEADER
48 
49 QT_BEGIN_NAMESPACE
50 
QT_MODULE(Core)51 QT_MODULE(Core)
52 
53 class QMargins
54 {
55 public:
56     QMargins();
57     QMargins(int left, int top, int right, int bottom);
58 
59     bool isNull() const;
60 
61     int left() const;
62     int top() const;
63     int right() const;
64     int bottom() const;
65 
66     void setLeft(int left);
67     void setTop(int top);
68     void setRight(int right);
69     void setBottom(int bottom);
70 
71 private:
72     int m_left;
73     int m_top;
74     int m_right;
75     int m_bottom;
76 
77     friend inline bool operator==(const QMargins &, const QMargins &);
78     friend inline bool operator!=(const QMargins &, const QMargins &);
79 };
80 
81 Q_DECLARE_TYPEINFO(QMargins, Q_MOVABLE_TYPE);
82 
83 /*****************************************************************************
84   QMargins inline functions
85  *****************************************************************************/
86 
QMargins()87 inline QMargins::QMargins()
88 { m_top = m_bottom = m_left = m_right = 0; }
89 
QMargins(int aleft,int atop,int aright,int abottom)90 inline QMargins::QMargins(int aleft, int atop, int aright, int abottom)
91     : m_left(aleft), m_top(atop), m_right(aright), m_bottom(abottom) {}
92 
isNull()93 inline bool QMargins::isNull() const
94 { return m_left==0 && m_top==0 && m_right==0 && m_bottom==0; }
95 
left()96 inline int QMargins::left() const
97 { return m_left; }
98 
top()99 inline int QMargins::top() const
100 { return m_top; }
101 
right()102 inline int QMargins::right() const
103 { return m_right; }
104 
bottom()105 inline int QMargins::bottom() const
106 { return m_bottom; }
107 
108 
setLeft(int aleft)109 inline void QMargins::setLeft(int aleft)
110 { m_left = aleft; }
111 
setTop(int atop)112 inline void QMargins::setTop(int atop)
113 { m_top = atop; }
114 
setRight(int aright)115 inline void QMargins::setRight(int aright)
116 { m_right = aright; }
117 
setBottom(int abottom)118 inline void QMargins::setBottom(int abottom)
119 { m_bottom = abottom; }
120 
121 inline bool operator==(const QMargins &m1, const QMargins &m2)
122 {
123     return
124             m1.m_left == m2.m_left &&
125             m1.m_top == m2.m_top &&
126             m1.m_right == m2.m_right &&
127             m1.m_bottom == m2.m_bottom;
128 }
129 
130 inline bool operator!=(const QMargins &m1, const QMargins &m2)
131 {
132     return
133             m1.m_left != m2.m_left ||
134             m1.m_top != m2.m_top ||
135             m1.m_right != m2.m_right ||
136             m1.m_bottom != m2.m_bottom;
137 }
138 
139 #ifndef QT_NO_DEBUG_STREAM
140 Q_CORE_EXPORT QDebug operator<<(QDebug, const QMargins &);
141 #endif
142 
143 QT_END_NAMESPACE
144 
145 QT_END_HEADER
146 
147 #endif // QMARGINS_H
148