diff -r 000000000000 -r 1918ee327afb src/gui/kernel/qgesturemanager_p.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/gui/kernel/qgesturemanager_p.h Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,135 @@ +/**************************************************************************** +** +** Copyright (C) 2009 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" + +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(QGesture *receiver, QEvent *event); + bool filterEvent(QGraphicsObject *receiver, QEvent *event); + + // declared in qapplication.cpp + static QGestureManager* instance(); + +protected: + void timerEvent(QTimerEvent *event); + bool filterEventThroughContexts(const QMap &contexts, + QEvent *event); + +private: + QMultiMap recognizers; + + QSet activeGestures; + QMap 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 explicitely + } state; + + struct ObjectGesture + { + QWeakPointer object; + Qt::GestureType gesture; + + ObjectGesture(QObject *o, const Qt::GestureType &g) : object(o), gesture(g) { } + inline bool operator<(const ObjectGesture& rhs) const + { + if (object.data() < rhs.object.data()) + return true; + if (object == rhs.object) + return gesture < rhs.gesture; + return false; + } + }; + + QMap objectGestures; + QMap gestureToRecognizer; + QHash gestureOwners; + + QHash gestureTargets; + + int lastCustomGestureId; + + QGesture *getState(QObject *widget, Qt::GestureType gesture); + void deliverEvents(const QSet &gestures, + QSet *undeliveredGestures); + void getGestureTargets(const QSet &gestures, + QMap > *conflicts, + QMap > *normal); +}; + +QT_END_NAMESPACE + +#endif // QGESTUREMANAGER_P_H