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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** 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 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 "qobject.h"
-#include "qbasictimer.h"
-#include "private/qwidget_p.h"
-#include "qgesturerecognizer.h"
-
-#ifndef QT_NO_GESTURES
-
-QT_BEGIN_NAMESPACE
-
-class QBasicTimer;
-class QGraphicsObject;
-class QGestureManager : public QObject
-{
- Q_OBJECT
-public:
- QGestureManager(QObject *parent);
- ~QGestureManager();
-
- Qt::GestureType registerGestureRecognizer(QGestureRecognizer *recognizer);
- void unregisterGestureRecognizer(Qt::GestureType type);
-
- bool filterEvent(QWidget *receiver, QEvent *event);
- bool filterEvent(QObject *receiver, QEvent *event);
-#ifndef QT_NO_GRAPHICSVIEW
- bool filterEvent(QGraphicsObject *receiver, QEvent *event);
-#endif //QT_NO_GRAPHICSVIEW
-
- static QGestureManager* instance(); // declared in qapplication.cpp
-
- void cleanupCachedGestures(QObject *target, Qt::GestureType type);
-
- void recycle(QGesture *gesture);
-
-protected:
- bool filterEventThroughContexts(const QMultiMap<QObject *, Qt::GestureType> &contexts,
- QEvent *event);
-
-private:
- QMultiMap<Qt::GestureType, QGestureRecognizer *> m_recognizers;
-
- QSet<QGesture *> m_activeGestures;
- QSet<QGesture *> m_maybeGestures;
-
- enum State {
- Gesture,
- NotGesture,
- MaybeGesture // this means timers are up and waiting for some
- // more events, and input events are handled by
- // gesture recognizer explicitly
- } state;
-
- struct ObjectGesture
- {
- QObject* object;
- Qt::GestureType gesture;
-
- ObjectGesture(QObject *o, const Qt::GestureType &g) : object(o), gesture(g) { }
- inline bool operator<(const ObjectGesture &rhs) const
- {
- if (object < rhs.object)
- return true;
- if (object == rhs.object)
- return gesture < rhs.gesture;
- return false;
- }
- };
-
- QMap<ObjectGesture, QList<QGesture *> > m_objectGestures;
- QHash<QGesture *, QGestureRecognizer *> m_gestureToRecognizer;
- QHash<QGesture *, QObject *> m_gestureOwners;
-
- QHash<QGesture *, QWidget *> m_gestureTargets;
-
- int m_lastCustomGestureId;
-
- QHash<QGestureRecognizer *, QSet<QGesture *> > m_obsoleteGestures;
- QHash<QGesture *, QGestureRecognizer *> m_deletedRecognizers;
- QSet<QGesture *> m_gesturesToDelete;
- void cleanupGesturesForRemovedRecognizer(QGesture *gesture);
-
- QGesture *getState(QObject *widget, QGestureRecognizer *recognizer,
- Qt::GestureType gesture);
- void deliverEvents(const QSet<QGesture *> &gestures,
- QSet<QGesture *> *undeliveredGestures);
- void getGestureTargets(const QSet<QGesture*> &gestures,
- QMap<QWidget *, QList<QGesture *> > *conflicts,
- QMap<QWidget *, QList<QGesture *> > *normal);
-
- void cancelGesturesForChildren(QGesture *originatingGesture);
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_GESTURES
-
-#endif // QGESTUREMANAGER_P_H