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/****************************************************************************
**
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGESTURERECOGNIZER_H
#define QGESTURERECOGNIZER_H
#include "qevent.h"
#include "qlist.h"
#include "qset.h"
QT_BEGIN_NAMESPACE
class QGesture;
class QGestureRecognizerPrivate;
class Q_GUI_EXPORT QGestureRecognizer : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QGestureRecognizer)
public:
enum Result
{
Ignore,
NotGesture,
GestureStarted, //TODO: rename to just Gesture?
GestureFinished,
MaybeGesture
};
explicit QGestureRecognizer(const QString &gestureType, QObject *parent = 0);
QString gestureType() const;
virtual QGestureRecognizer::Result filterEvent(const QEvent* event) = 0;
virtual QGesture* getGesture() = 0;
virtual void reset() = 0;
signals:
void stateChanged(QGestureRecognizer::Result result);
private:
friend class QDoubleTapGestureRecognizer;
friend class QTapAndHoldGestureRecognizer;
friend class QGestureRecognizerPan;
};
QT_END_NAMESPACE
#endif // QGESTURERECOGNIZER_P_H
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