Long live Qt 4.5!

1 files changed, 132 insertions, 0 deletions

diff --git a/src/gui/embedded/qmousevfb_qws.cpp b/src/gui/embedded/qmousevfb_qws.cpp
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+++ b/src/gui/embedded/qmousevfb_qws.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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>
+
+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 = 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 (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)
+        close(mouseFD);
+}
+
+void QVFbMouseHandler::resume()
+{
+    mouseNotifier->setEnabled(true);
+}
+
+void QVFbMouseHandler::suspend()
+{
+    mouseNotifier->setEnabled(false);
+}
+
+void QVFbMouseHandler::readMouseData()
+{
+    int n;
+    do {
+        n = 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