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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mousepangesturerecognizer.h"
#include <QEvent>
#include <QMouseEvent>
#include <QGesture>
MousePanGestureRecognizer::MousePanGestureRecognizer()
{
}
QGesture *MousePanGestureRecognizer::create(QObject *)
{
return new QPanGesture;
}
QGestureRecognizer::Result MousePanGestureRecognizer::recognize(QGesture *state, QObject *, QEvent *event)
{
QPanGesture *g = static_cast<QPanGesture *>(state);
if (event->type() == QEvent::TouchBegin) {
// ignore the following mousepress event
g->setProperty("ignoreMousePress", QVariant::fromValue<bool>(true));
} else if (event->type() == QEvent::TouchEnd) {
g->setProperty("ignoreMousePress", QVariant::fromValue<bool>(false));
}
QMouseEvent *me = static_cast<QMouseEvent *>(event);
if (event->type() == QEvent::MouseButtonPress) {
if (g->property("ignoreMousePress").toBool())
return QGestureRecognizer::Ignore;
g->setHotSpot(me->globalPos());
g->setProperty("startPos", me->globalPos());
g->setProperty("pressed", QVariant::fromValue<bool>(true));
return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint;
} else if (event->type() == QEvent::MouseMove) {
if (g->property("pressed").toBool()) {
QPoint offset = me->globalPos() - g->property("startPos").toPoint();
g->setLastOffset(g->offset());
g->setOffset(QPointF(offset.x(), offset.y()));
return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint;
}
return QGestureRecognizer::CancelGesture;
} else if (event->type() == QEvent::MouseButtonRelease) {
if (g->property("pressed").toBool())
return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint;
}
return QGestureRecognizer::Ignore;
}
void MousePanGestureRecognizer::reset(QGesture *state)
{
QPanGesture *g = static_cast<QPanGesture *>(state);
g->setLastOffset(QPointF());
g->setOffset(QPointF());
g->setAcceleration(0);
g->setProperty("startPos", QVariant());
g->setProperty("pressed", QVariant::fromValue<bool>(false));
g->setProperty("ignoreMousePress", QVariant::fromValue<bool>(false));
QGestureRecognizer::reset(state);
}
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