source: trunk/doc/src/snippets/code/doc_src_properties.qdoc@ 769

Last change on this file since 769 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.

File size: 3.4 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the documentation of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42//! [0]
43Q_PROPERTY(type name
44 READ getFunction
45 [WRITE setFunction]
46 [RESET resetFunction]
47 [NOTIFY notifySignal]
48 [DESIGNABLE bool]
49 [SCRIPTABLE bool]
50 [STORED bool]
51 [USER bool]
52 [CONSTANT]
53 [FINAL])
54//! [0]
55
56
57//! [1]
58Q_PROPERTY(bool focus READ hasFocus)
59Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled)
60Q_PROPERTY(QCursor cursor READ cursor WRITE setCursor RESET unsetCursor)
61//! [1]
62
63
64//! [2]
65Q_PROPERTY(QDate date READ getDate WRITE setDate)
66//! [2]
67
68
69//! [3]
70QPushButton *button = new QPushButton;
71QObject *object = button;
72
73button->setDown(true);
74object->setProperty("down", true);
75//! [3]
76
77
78//! [4]
79QObject *object = ...
80const QMetaObject *metaobject = object->metaObject();
81int count = metaobject->propertyCount();
82for (int i=0; i<count; ++i) {
83 QMetaProperty metaproperty = metaobject->property(i);
84 const char *name = metaproperty.name();
85 QVariant value = object->property(name);
86 ...
87}
88//! [4]
89
90
91//! [5]
92class MyClass : public QObject
93{
94 Q_OBJECT
95 Q_PROPERTY(Priority priority READ priority WRITE setPriority)
96 Q_ENUMS(Priority)
97
98public:
99 MyClass(QObject *parent = 0);
100 ~MyClass();
101
102 enum Priority { High, Low, VeryHigh, VeryLow };
103
104 void setPriority(Priority priority);
105 Priority priority() const;
106};
107//! [5]
108
109
110//! [6]
111MyClass *myinstance = new MyClass;
112QObject *object = myinstance;
113
114myinstance->setPriority(MyClass::VeryHigh);
115object->setProperty("priority", "VeryHigh");
116//! [6]
117
118
119//! [7]
120Q_CLASSINFO("Version", "3.0.0")
121//! [7]
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