/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** 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 | |
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** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
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** | |
** 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: | |
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** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#ifndef QT_NO_QWS_MOUSE_QVFB | |
#include <stdlib.h> | |
#include <sys/types.h> | |
#include <unistd.h> | |
#include <fcntl.h> | |
#include <errno.h> | |
#include <stdio.h> | |
#include <qvfbhdr.h> | |
#include <qmousevfb_qws.h> | |
#include <qwindowsystem_qws.h> | |
#include <qsocketnotifier.h> | |
#include <qapplication.h> | |
#include <qtimer.h> | |
#include <private/qcore_unix_p.h> // overrides QT_OPEN | |
QT_BEGIN_NAMESPACE | |
QVFbMouseHandler::QVFbMouseHandler(const QString &driver, const QString &device) | |
: QObject(), QWSMouseHandler(driver, device) | |
{ | |
QString mouseDev = device; | |
if (device.isEmpty()) | |
mouseDev = QLatin1String("/dev/vmouse"); | |
mouseFD = QT_OPEN(mouseDev.toLatin1().constData(), O_RDWR | O_NDELAY); | |
if (mouseFD == -1) { | |
perror("QVFbMouseHandler::QVFbMouseHandler"); | |
qWarning("QVFbMouseHander: Unable to open device %s", | |
qPrintable(mouseDev)); | |
return; | |
} | |
// Clear pending input | |
char buf[2]; | |
while (QT_READ(mouseFD, buf, 1) > 0) { } | |
mouseIdx = 0; | |
mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read, this); | |
connect(mouseNotifier, SIGNAL(activated(int)),this, SLOT(readMouseData())); | |
} | |
QVFbMouseHandler::~QVFbMouseHandler() | |
{ | |
if (mouseFD >= 0) | |
QT_CLOSE(mouseFD); | |
} | |
void QVFbMouseHandler::resume() | |
{ | |
mouseNotifier->setEnabled(true); | |
} | |
void QVFbMouseHandler::suspend() | |
{ | |
mouseNotifier->setEnabled(false); | |
} | |
void QVFbMouseHandler::readMouseData() | |
{ | |
int n; | |
do { | |
n = QT_READ(mouseFD, mouseBuf+mouseIdx, mouseBufSize-mouseIdx); | |
if (n > 0) | |
mouseIdx += n; | |
} while (n > 0); | |
int idx = 0; | |
static const int packetsize = sizeof(QPoint) + 2*sizeof(int); | |
while (mouseIdx-idx >= packetsize) { | |
uchar *mb = mouseBuf+idx; | |
QPoint mousePos = *reinterpret_cast<QPoint *>(mb); | |
mb += sizeof(QPoint); | |
int bstate = *reinterpret_cast<int *>(mb); | |
mb += sizeof(int); | |
int wheel = *reinterpret_cast<int *>(mb); | |
// limitToScreen(mousePos); | |
mouseChanged(mousePos, bstate, wheel); | |
idx += packetsize; | |
} | |
int surplus = mouseIdx - idx; | |
for (int i = 0; i < surplus; i++) | |
mouseBuf[i] = mouseBuf[idx+i]; | |
mouseIdx = surplus; | |
} | |
QT_END_NAMESPACE | |
#endif // QT_NO_QWS_MOUSE_QVFB |