1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtWidgets 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 https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://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 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QWIDGETACTION_H
41#define QWIDGETACTION_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtWidgets/qaction.h>
45
46QT_BEGIN_NAMESPACE
47
48
49#ifndef QT_NO_ACTION
50
51class QWidgetActionPrivate;
52
53class Q_WIDGETS_EXPORT QWidgetAction : public QAction
54{
55 Q_OBJECT
56 Q_DECLARE_PRIVATE(QWidgetAction)
57
58public:
59 explicit QWidgetAction(QObject *parent);
60 virtual ~QWidgetAction();
61
62 void setDefaultWidget(QWidget *w);
63 QWidget *defaultWidget() const;
64
65 QWidget *requestWidget(QWidget *parent);
66 void releaseWidget(QWidget *widget);
67
68protected:
69 virtual bool event(QEvent *) override;
70 virtual bool eventFilter(QObject *, QEvent *) override;
71 virtual QWidget *createWidget(QWidget *parent);
72 virtual void deleteWidget(QWidget *widget);
73 QList<QWidget *> createdWidgets() const;
74
75private:
76 Q_DISABLE_COPY(QWidgetAction)
77 Q_PRIVATE_SLOT(d_func(), void _q_widgetDestroyed(QObject *))
78 friend class QToolBar;
79};
80
81#endif // QT_NO_ACTION
82
83QT_END_NAMESPACE
84
85#endif // QWIDGETACTION_H
86

source code of qtbase/src/widgets/kernel/qwidgetaction.h