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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the plugins module 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 "qtoucheventsenderqpa.h"
#include <QGuiApplication>
#include <QScreen>
#include <QStringList>
#include <QDebug>
QT_BEGIN_NAMESPACE
QTouchEventSenderQPA::QTouchEventSenderQPA(const QString &spec)
{
m_forceToActiveWindow = spec.split(QLatin1Char(':')).contains(QLatin1String("force_window"));
m_device = new QTouchDevice;
m_device->setType(QTouchDevice::TouchScreen);
m_device->setCapabilities(QTouchDevice::Position | QTouchDevice::Area);
QWindowSystemInterface::registerTouchDevice(m_device);
}
void QTouchEventSenderQPA::touch_configure(int x_min, int x_max, int y_min, int y_max,
int pressure_min, int pressure_max,
const QString &dev_name)
{
hw_range_x_min = x_min;
hw_range_x_max = x_max;
hw_range_y_min = y_min;
hw_range_y_max = y_max;
hw_pressure_min = pressure_min;
hw_pressure_max = pressure_max;
m_device->setName(dev_name);
if (hw_pressure_max > hw_pressure_min)
m_device->setCapabilities(m_device->capabilities() | QTouchDevice::Pressure);
}
void QTouchEventSenderQPA::touch_point(const QList<QWindowSystemInterface::TouchPoint> &points)
{
QRect winRect;
if (m_forceToActiveWindow) {
QWindow *win = QGuiApplication::activeWindow();
if (!win)
return;
winRect = win->geometry();
} else {
winRect = QGuiApplication::primaryScreen()->geometry();
}
const int hw_w = hw_range_x_max - hw_range_x_min;
const int hw_h = hw_range_y_max - hw_range_y_min;
QList<QWindowSystemInterface::TouchPoint> touchPoints = points;
// Map the coordinates based on the normalized position. QPA expects 'area'
// to be in screen coordinates.
for (int i = 0; i < touchPoints.size(); ++i) {
QWindowSystemInterface::TouchPoint &tp(touchPoints[i]);
// Generate a screen position that is always inside the active window
// or the primary screen.
const int wx = winRect.left() + int(tp.normalPosition.x() * winRect.width());
const int wy = winRect.top() + int(tp.normalPosition.y() * winRect.height());
const qreal sizeRatio = (winRect.width() + winRect.height()) / qreal(hw_w + hw_h);
tp.area = QRect(0, 0, tp.area.width() * sizeRatio, tp.area.height() * sizeRatio);
tp.area.moveCenter(QPoint(wx, wy));
// Calculate normalized pressure.
if (!hw_pressure_min && !hw_pressure_max)
tp.pressure = tp.state == Qt::TouchPointReleased ? 0 : 1;
else
tp.pressure = (tp.pressure - hw_pressure_min) / qreal(hw_pressure_max - hw_pressure_min);
}
QWindowSystemInterface::handleTouchEvent(0, m_device, touchPoints);
}
QT_END_NAMESPACE
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