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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "gestures.h"
#include <QTouchEvent>
Qt::GestureType ThreeFingerSlideGesture::Type = Qt::CustomGesture;
QGesture *ThreeFingerSlideGestureRecognizer::create(QObject *)
{
return new ThreeFingerSlideGesture;
}
QGestureRecognizer::Result ThreeFingerSlideGestureRecognizer::recognize(QGesture *state, QObject *, QEvent *event)
{
ThreeFingerSlideGesture *d = static_cast<ThreeFingerSlideGesture *>(state);
QGestureRecognizer::Result result;
switch (event->type()) {
case QEvent::TouchBegin:
result = QGestureRecognizer::MayBeGesture;
case QEvent::TouchEnd:
if (d->gestureFired)
result = QGestureRecognizer::FinishGesture;
else
result = QGestureRecognizer::CancelGesture;
case QEvent::TouchUpdate:
if (d->state() != Qt::NoGesture) {
QTouchEvent *ev = static_cast<QTouchEvent*>(event);
if (ev->touchPoints().size() == 3) {
d->gestureFired = true;
result = QGestureRecognizer::TriggerGesture;
} else {
result = QGestureRecognizer::MayBeGesture;
for (int i = 0; i < ev->touchPoints().size(); ++i) {
const QTouchEvent::TouchPoint &pt = ev->touchPoints().at(i);
const int distance = (pt.pos().toPoint() - pt.startPos().toPoint()).manhattanLength();
if (distance > 20) {
result = QGestureRecognizer::CancelGesture;
}
}
}
} else {
result = QGestureRecognizer::CancelGesture;
}
break;
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseMove:
if (d->state() != Qt::NoGesture)
result = QGestureRecognizer::Ignore;
else
result = QGestureRecognizer::CancelGesture;
break;
default:
result = QGestureRecognizer::Ignore;
break;
}
return result;
}
void ThreeFingerSlideGestureRecognizer::reset(QGesture *state)
{
static_cast<ThreeFingerSlideGesture *>(state)->gestureFired = false;
QGestureRecognizer::reset(state);
}
QGesture *RotateGestureRecognizer::create(QObject *)
{
return new QGesture;
}
QGestureRecognizer::Result RotateGestureRecognizer::recognize(QGesture *, QObject *, QEvent *event)
{
switch (event->type()) {
case QEvent::TouchBegin:
case QEvent::TouchEnd:
case QEvent::TouchUpdate:
break;
default:
break;
}
return QGestureRecognizer::Ignore;
}
void RotateGestureRecognizer::reset(QGesture *state)
{
QGestureRecognizer::reset(state);
}
#include "moc_gestures.cpp"
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