summaryrefslogtreecommitdiffstats
path: root/src/gui/kernel/qgesture.h
blob: ee6f8b39fcfc8a9b267ac84530b71d957d00502b (plain)
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
/****************************************************************************
**
** 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 QGESTURE_H
#define QGESTURE_H

#include <QtCore/qobject.h>
#include <QtCore/qlist.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qpoint.h>
#include <QtCore/qrect.h>
#include <QtCore/qmetatype.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QGraphicsItem;
class QGesturePrivate;
class Q_GUI_EXPORT QGesture : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QGesture)

    Q_PROPERTY(Qt::GestureState state READ state)
    Q_PROPERTY(QObject* gestureTarget READ gestureTarget WRITE setGestureTarget)

public:
    explicit QGesture(QObject *gestureTarget = 0, QObject *parent = 0);
    ~QGesture();

    virtual bool filterEvent(QEvent *event) = 0;

    void setGestureTarget(QObject *object);
    QObject* gestureTarget() const;

    void setGraphicsItem(QGraphicsItem *);
    QGraphicsItem *graphicsItem() const;

    Qt::GestureState state() const;

protected:
    QGesture(QGesturePrivate &dd, QObject *gestureTarget, QObject *parent);
    bool eventFilter(QObject*, QEvent*);

    virtual void reset();
    void updateState(Qt::GestureState state);

Q_SIGNALS:
    void started();
    void triggered();
    void finished();
    void cancelled();

private:
    friend class QWidget;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QGESTURE_H