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# qgesturerecognizer.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QGESTURERECOGNIZER_H
    00043 #define QGESTURERECOGNIZER_H
    00044
    00045 #include <QtCore/qglobal.h>
    00046 #include <QtCore/qnamespace.h>
    00047
    00048 #ifndef QT_NO_GESTURES
    00049
    00050 QT_BEGIN_HEADER
    00051
    00052 QT_BEGIN_NAMESPACE
    00053
    00054 QT_MODULE(Gui)
    00055
    00056 class QObject;
    00057 class QEvent;
    00058 class QGesture;
    00059 class Q_GUI_EXPORT QGestureRecognizer
    00060 {
    00061 public:
    00062     enum ResultFlag
    00063     {
    00064         Ignore           = 0x0001,
    00065
    00066         MayBeGesture     = 0x0002,
    00067         TriggerGesture   = 0x0004,
    00068         FinishGesture    = 0x0008,
    00069         CancelGesture    = 0x0010,
    00070
    00071         ResultState_Mask = 0x00ff,
    00072
    00073         ConsumeEventHint        = 0x0100,
    00074         // StoreEventHint          = 0x0200,
    00075         // ReplayStoredEventsHint  = 0x0400,
    00076         // DiscardStoredEventsHint = 0x0800,
    00077
    00078         ResultHint_Mask = 0xff00
    00079     };
    00080     Q_DECLARE_FLAGS(Result, ResultFlag)
    00081
    00082     QGestureRecognizer();
    00083     virtual ~QGestureRecognizer();
    00084
    00085     virtual QGesture *create(QObject *target);
    00086     virtual Result recognize(QGesture *state, QObject *watched,
    00087                              QEvent *event) = 0;
    00088     virtual void reset(QGesture *state);
    00089
    00090     static Qt::GestureType registerRecognizer(QGestureRecognizer *recognizer);
    00091     static void unregisterRecognizer(Qt::GestureType type);
    00092 };
    00093
    00094 Q_DECLARE_OPERATORS_FOR_FLAGS(QGestureRecognizer::Result)
    00095
    00096 QT_END_NAMESPACE
    00097
    00098 QT_END_HEADER
    00099
    00100 #endif // QT_NO_GESTURES
    00101
    00102 #endif // QGESTURERECOGNIZER_H