gecko-dev/widget/qt/mozSwipeGesture.h

84 строки
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
*/
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Nokia Corporation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Miika Jarvinen <mjarvin@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef MOZSWIPEGESTURE_H
#define MOZSWIPEGESTURE_H
#include <QGestureRecognizer>
#include <QGesture>
#include <QTouchEvent>
class MozSwipeGestureRecognizer: public QGestureRecognizer
{
public:
virtual QGesture* create(QObject* aTarget);
virtual QGestureRecognizer::Result recognize(QGesture* aState,
QObject* aWatched,
QEvent* aEvent);
virtual void reset(QGesture* aState);
};
class MozSwipeGesture: public QGesture
{
public:
int Direction();
private:
enum SwipeState {
NOT_STARTED = 0,
STARTED,
CANCELLED,
TRIGGERED
};
MozSwipeGesture();
bool Update(const QTouchEvent::TouchPoint& aFirstPoint,
const QTouchEvent::TouchPoint& aSecondPoint,
const QSizeF& aSize);
int mHorizontalDirection;
int mVerticalDirection;
SwipeState mSwipeState;
friend class MozSwipeGestureRecognizer;
};
#endif