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/**************************************************************************
**
** This file is part of Qt Simulator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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.
**
**************************************************************************/
#include "panmodefilter.h"
#include "mouseindicator.h"
#include "widget.h"
#include "application.h"
#include <QtGui/QGraphicsSceneEvent>
PanModeFilter::PanModeFilter(QGraphicsItem *parent)
: InputFilter(parent)
, mState(setFirstPoint)
{
}
PanModeFilter::~PanModeFilter()
{
}
bool PanModeFilter::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
{
Widget *widget = static_cast<Widget *>(watched);
QGraphicsSceneMouseEvent *ev = 0;
switch (event->type()) {
case QEvent::GraphicsSceneMousePress:
ev = static_cast<QGraphicsSceneMouseEvent *>(event);
switch (mState) {
case setFirstPoint:
mState = updateFirstPoint;
mValuePoints.append(new MouseIndicator(ev->pos(), widget));
mValuePoints[0]->setBrush(Qt::red);
return true;
case setSecondPoint:
if (mValuePoints[0]->contains(mapToItem(mValuePoints[0], ev->pos()))) {
mState = updateFirstPoint;
if (mValuePoints.length() == 2)
mValuePoints[1]->setVisible(false);
} else {
if (mValuePoints.length() == 1) {
mValuePoints.append(new MouseIndicator(ev->pos(), this));
} else {
mValuePoints[1]->setCenter(ev->pos());
mValuePoints[1]->setVisible(true);
}
mPanDiff = ev->pos() - mValuePoints[0]->center();
mValuePoints[0]->setStartPos(mValuePoints[0]->center());
mValuePoints[1]->setStartPos(mValuePoints[1]->center());
mState = updateSecondPoint;
QtSimulatorPrivate::TouchEventData touchEvent = createTouchEventFromMouseEvent(widget, ev);
QtSimulatorPrivate::RemoteMetacall<void>::call(widget->owner->socket(),
QtSimulatorPrivate::NoSync,
"dispatchTouchEvent",
widget->widgetId,
touchEvent);
}
return true;
}
break;
case QEvent::GraphicsSceneMouseRelease:
ev = static_cast<QGraphicsSceneMouseEvent *>(event);
switch (mState) {
case updateFirstPoint:
mState = setSecondPoint;
return true;
case updateSecondPoint:
QtSimulatorPrivate::TouchEventData touchEvent = createTouchEventFromMouseEvent(widget, ev);
QtSimulatorPrivate::RemoteMetacall<void>::call(widget->owner->socket(),
QtSimulatorPrivate::NoSync,
"dispatchTouchEvent",
widget->widgetId,
touchEvent);
mState = setSecondPoint;
return true;
}
break;
case QEvent::GraphicsSceneMouseMove:
ev = static_cast<QGraphicsSceneMouseEvent *>(event);
switch (mState) {
case updateFirstPoint:
mValuePoints[0]->setCenter(ev->pos());
return true;
case updateSecondPoint:
mValuePoints[1]->setCenter(ev->pos());
mValuePoints[0]->setCenter(mValuePoints[1]->center() - mPanDiff);
QtSimulatorPrivate::TouchEventData touchEvent = createTouchEventFromMouseEvent(widget, ev);
QtSimulatorPrivate::RemoteMetacall<void>::call(widget->owner->socket(),
QtSimulatorPrivate::NoSync,
"dispatchTouchEvent",
widget->widgetId,
touchEvent);
return true;
}
break;
default:
break;
}
return false;
}
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