1 files changed, 195 insertions, 0 deletions
diff --git a/src/qvfb/qvfbprotocol.cpp b/src/qvfb/qvfbprotocol.cpp
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+++ b/src/qvfb/qvfbprotocol.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the tools applications 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 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvfbprotocol.h"
+#include "qvfbhdr.h"
+
+#include <QDebug>
+#include <QTimer>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <math.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef Q_OS_UNIX
+#include <unistd.h>
+#endif
+
+#include "qvfbshmem.h"
+
+QT_BEGIN_NAMESPACE
+
+QVFbViewProtocol::QVFbViewProtocol(int display_id, QObject *parent) :
+    QObject(parent), mDisplayId(display_id) { }
+
+QVFbViewProtocol::~QVFbViewProtocol() {}
+
+void QVFbViewProtocol::flushChanges() {}
+
+void QVFbViewProtocol::sendKeyboardData(QString unicode, int keycode,
+                                        int modifiers, bool press, bool repeat)
+{
+    if (keyHandler())
+        keyHandler()->sendKeyboardData(unicode, keycode, modifiers, press, repeat);
+}
+
+void QVFbViewProtocol::sendMouseData(const QPoint &pos, int buttons, int wheel)
+{
+    if (mouseHandler())
+        mouseHandler()->sendMouseData(pos, buttons, wheel);
+}
+
+static int openPipe(const char *fileName)
+{
+    unlink(fileName);
+
+    mkfifo(fileName, 0666);
+    int fd = ::open(fileName, O_RDWR | O_NDELAY);
+    return fd;
+}
+
+QVFbKeyPipeProtocol::QVFbKeyPipeProtocol(int display_id)
+    : QVFbKeyProtocol(display_id)
+{
+    fileName = QT_VFB_KEYBOARD_PIPE(display_id);
+    fd = openPipe(fileName.toLocal8Bit().constData());
+
+    if (fd == -1)
+	qFatal("Cannot open keyboard pipe %s", fileName.toLocal8Bit().data());
+}
+
+QVFbKeyPipeProtocol::~QVFbKeyPipeProtocol()
+{
+    sendKeyboardData(0, 0, 0, true, false); // magic die key
+    ::close(fd);
+    unlink(fileName.toLocal8Bit().constData());
+}
+
+void QVFbKeyPipeProtocol::sendKeyboardData(QString unicode, int keycode,
+                                           int modifiers, bool press, bool repeat)
+{
+    QVFbKeyData kd;
+    kd.unicode = unicode[0].unicode();
+    kd.keycode = keycode;
+    kd.modifiers = static_cast<Qt::KeyboardModifier>(modifiers);
+    kd.press = press;
+    kd.repeat = repeat;
+    write(fd, &kd, sizeof(QVFbKeyData));
+}
+
+QVFbMousePipe::QVFbMousePipe(int display_id)
+    : QVFbMouseProtocol(display_id)
+{
+    fileName = QT_VFB_MOUSE_PIPE(display_id);
+    fd = openPipe(fileName.toLocal8Bit().constData());
+
+    if (fd == -1)
+	qFatal("Cannot open mouse pipe %s", fileName.toLocal8Bit().data());
+}
+
+QVFbMousePipe::~QVFbMousePipe()
+{
+    ::close(fd);
+    unlink(fileName.toLocal8Bit().constData());
+}
+
+
+void QVFbMousePipe::sendMouseData(const QPoint &pos, int buttons, int wheel)
+{
+    write(fd, &pos, sizeof(QPoint));
+    write(fd, &buttons, sizeof(int));
+    write(fd, &wheel, sizeof(int));
+}
+
+QVFbMouseLinuxTP::QVFbMouseLinuxTP(int display_id)
+    : QObject(), QVFbMousePipe(display_id), lastPos(-1,-1)
+{
+    /* the timer is needed because a real touch screen send data as long as
+       there is pressure.  And the linux tp driver will filter, requiring
+       a minimum of 5 samples before it even registers a press.
+    */
+    repeater = new QTimer(this);
+    connect(repeater, SIGNAL(timeout()), this, SLOT(repeatLastPress()));
+}
+
+QVFbMouseLinuxTP::~QVFbMouseLinuxTP()
+{
+}
+
+
+void QVFbMouseLinuxTP::sendMouseData(const QPoint &pos, int buttons, int)
+{
+    if (buttons & Qt::LeftButton) {
+        // press
+        repeater->start(5);
+        writeToPipe(pos, 1);
+        lastPos = pos;
+    } else {
+        // release
+        if (lastPos == QPoint(-1,-1))
+            return; /* only send one release */
+        repeater->stop();
+        writeToPipe(pos, 0);
+        lastPos = QPoint(-1,-1);
+    }
+}
+
+void QVFbMouseLinuxTP::writeToPipe(const QPoint &pos, ushort pressure)
+{
+    ushort v;
+    write(fd, &pressure, sizeof(ushort));
+    v = pos.x();
+    write(fd, &v, sizeof(ushort));
+    v = pos.y();
+    write(fd, &v, sizeof(ushort));
+    v = 1; // pad
+    write(fd, &v, sizeof(ushort));
+}
+
+void QVFbMouseLinuxTP::repeatLastPress()
+{
+    writeToPipe(lastPos, 1);
+}
+
+QT_END_NAMESPACE