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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui 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 "qevdevmousemanager_p.h"
#include <QStringList>
#include <QGuiApplication>
#include <QScreen>
#include <qpa/qwindowsysteminterface.h>
//#define QT_QPA_MOUSEMANAGER_DEBUG
#ifdef QT_QPA_MOUSEMANAGER_DEBUG
#include <QDebug>
#endif
QT_BEGIN_NAMESPACE
QEvdevMouseManager::QEvdevMouseManager(const QString &key, const QString &specification, QObject *parent)
: QObject(parent), m_x(0), m_y(0), m_xoffset(0), m_yoffset(0)
{
Q_UNUSED(key);
QStringList args = specification.split(QLatin1Char(':'));
QStringList devices;
foreach (const QString &arg, args) {
if (arg.startsWith(QLatin1String("/dev/"))) {
// if device is specified try to use it
devices.append(arg);
args.removeAll(arg);
} else if (arg.startsWith(QLatin1String("xoffset="))) {
m_xoffset = arg.mid(8).toInt();
} else if (arg.startsWith(QLatin1String("yoffset="))) {
m_yoffset = arg.mid(8).toInt();
}
}
// build new specification without /dev/ elements
m_spec = args.join(QLatin1Char(':'));
// add all mice for devices specified in the argument list
foreach (const QString &device, devices)
addMouse(device);
if (devices.isEmpty()) {
#ifdef QT_QPA_MOUSEMANAGER_DEBUG
qWarning() << "Use device discovery";
#endif
m_deviceDiscovery = QDeviceDiscovery::create(QDeviceDiscovery::Device_Mouse | QDeviceDiscovery::Device_Touchpad, this);
if (m_deviceDiscovery) {
// scan and add already connected keyboards
QStringList devices = m_deviceDiscovery->scanConnectedDevices();
foreach (const QString &device, devices) {
addMouse(device);
}
connect(m_deviceDiscovery, SIGNAL(deviceDetected(QString)), this, SLOT(addMouse(QString)));
connect(m_deviceDiscovery, SIGNAL(deviceRemoved(QString)), this, SLOT(removeMouse(QString)));
}
}
}
QEvdevMouseManager::~QEvdevMouseManager()
{
qDeleteAll(m_mice);
m_mice.clear();
}
void QEvdevMouseManager::handleMouseEvent(int x, int y, Qt::MouseButtons buttons)
{
// update current absolute coordinates
m_x += x;
m_y += y;
// clamp to screen geometry
QRect g = QGuiApplication::primaryScreen()->virtualGeometry();
if (m_x + m_xoffset < g.left())
m_x = g.left() - m_xoffset;
else if (m_x + m_xoffset > g.right())
m_x = g.right() - m_xoffset;
if (m_y + m_yoffset < g.top())
m_y = g.top() - m_yoffset;
else if (m_y + m_yoffset > g.bottom())
m_y = g.bottom() - m_yoffset;
QPoint pos(m_x + m_xoffset, m_y + m_yoffset);
QWindowSystemInterface::handleMouseEvent(0, pos, pos, buttons);
#ifdef QT_QPA_MOUSEMANAGER_DEBUG
qDebug("mouse event %d %d %d", pos.x(), pos.y(), int(buttons));
#endif
}
void QEvdevMouseManager::handleWheelEvent(int delta, Qt::Orientation orientation)
{
QPoint pos(m_x + m_xoffset, m_y + m_yoffset);
QWindowSystemInterface::handleWheelEvent(0, pos, pos, delta, orientation);
#ifdef QT_QPA_MOUSEMANAGER_DEBUG
qDebug("mouse wheel event %dx%d %d %d", pos.x(), pos.y(), delta, int(orientation));
#endif
}
void QEvdevMouseManager::addMouse(const QString &deviceNode)
{
#ifdef QT_QPA_MOUSEMANAGER_DEBUG
qWarning() << "Adding mouse at" << deviceNode;
#endif
QEvdevMouseHandler *handler;
handler = QEvdevMouseHandler::create(deviceNode, m_spec);
if (handler) {
connect(handler, SIGNAL(handleMouseEvent(int,int,Qt::MouseButtons)), this, SLOT(handleMouseEvent(int,int,Qt::MouseButtons)));
connect(handler, SIGNAL(handleWheelEvent(int,Qt::Orientation)), this, SLOT(handleWheelEvent(int,Qt::Orientation)));
m_mice.insert(deviceNode, handler);
} else {
qWarning("Failed to open mouse");
}
}
void QEvdevMouseManager::removeMouse(const QString &deviceNode)
{
if (m_mice.contains(deviceNode)) {
#ifdef QT_QPA_MOUSEMANAGER_DEBUG
qWarning() << "Removing mouse at" << deviceNode;
#endif
QEvdevMouseHandler *handler = m_mice.value(deviceNode);
m_mice.remove(deviceNode);
delete handler;
}
}
QT_END_NAMESPACE
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