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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGESTUREMANAGER_P_H
#define QGESTUREMANAGER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qlist.h"
#include "qset.h"
#include "qevent.h"
#include "qbasictimer.h"
#include "qpointer.h"
#include "qgesturerecognizer.h"
QT_BEGIN_NAMESPACE
class QWidget;
class Q_GUI_EXPORT QGestureManager : public QObject
{
Q_OBJECT
public:
QGestureManager(QObject *parent);
int eventDeliveryDelay() const;
void setEventDeliveryDelay(int ms);
void addRecognizer(QGestureRecognizer *recognizer);
void removeRecognizer(QGestureRecognizer *recognizer);
bool filterEvent(QWidget *receiver, QEvent *event);
bool inGestureMode();
int makeGestureId(const QString &name);
void releaseGestureId(int gestureId);
QString gestureNameFromId(int gestureId) const;
// declared in qapplication.cpp
static QGestureManager* instance();
protected:
void timerEvent(QTimerEvent *event);
private slots:
void recognizerStateChanged(QGestureRecognizer::Result);
private:
bool widgetHasGesture(QWidget *widget, QGesture *gesture) const;
bool sendGestureEvent(QWidget *receiver, const QSet<QGesture*> &gestures,
const QSet<QString> &cancelled = QSet<QString>());
QSet<QGestureRecognizer*> activeGestures;
QMap<QGestureRecognizer*, int> maybeGestures;
QSet<QGestureRecognizer*> recognizers;
QPoint lastPos;
int eventDeliveryDelayTimeout;
int delayedPressTimer;
QPointer<QWidget> lastMousePressReceiver;
QMouseEvent lastMousePressEvent;
QMap<int, QString> gestureIdMap;
int lastGestureId;
enum State {
Gesture,
NotGesture,
MaybeGesture // that mean timers are up and waiting for some
// more events, and input events are handled by
// gesture recognizer explicitely
} state;
};
QT_END_NAMESPACE
#endif // QGESTUREMANAGER_P_H
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