Long live Qt!

1 files changed, 334 insertions, 0 deletions

diff --git a/src/gui/embedded/qmouselinuxtp_qws.cpp b/src/gui/embedded/qmouselinuxtp_qws.cpp
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+++ b/src/gui/embedded/qmouselinuxtp_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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmouselinuxtp_qws.h"
+
+#ifndef QT_NO_QWS_MOUSE_LINUXTP
+#include "qwindowsystem_qws.h"
+#include "qsocketnotifier.h"
+#include "qtimer.h"
+#include "qapplication.h"
+#include "qscreen_qws.h"
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <termios.h>
+
+QT_BEGIN_NAMESPACE
+
+#if defined(QT_QWS_IPAQ)
+ #define QT_QWS_IPAQ_RAW
+ #define QT_QWS_SCREEN_COORDINATES
+ typedef struct {
+        unsigned short pressure;
+        unsigned short x;
+        unsigned short y;
+        unsigned short pad;
+ } TS_EVENT;
+#elif defined(QT_QWS_EBX)
+ #define QT_QWS_EBX_RAW
+ #define QT_QWS_SCREEN_COORDINATES
+#ifndef QT_QWS_SHARP
+  typedef struct {
+        unsigned short pressure;
+        unsigned short x;
+        unsigned short y;
+        unsigned short pad;
+  } TS_EVENT;
+ #else
+  typedef struct {
+       long y;
+       long x;
+       long pressure;
+       long long millisecs;
+  } TS_EVENT;
+  #define QT_QWS_TP_SAMPLE_SIZE 10
+  #define QT_QWS_TP_MINIMUM_SAMPLES 4
+  #define QT_QWS_TP_PRESSURE_THRESHOLD 500
+  #define QT_QWS_TP_MOVE_LIMIT 50
+  #define QT_QWS_TP_JITTER_LIMIT 2
+ #endif
+#else // not IPAQ, not SHARP
+  typedef struct {
+    unsigned short pressure;
+    unsigned short x;
+    unsigned short y;
+    unsigned short pad;
+  } TS_EVENT;
+#endif
+
+#ifndef QT_QWS_TP_SAMPLE_SIZE
+#define QT_QWS_TP_SAMPLE_SIZE 5
+#endif
+
+#ifndef QT_QWS_TP_MINIMUM_SAMPLES
+#define QT_QWS_TP_MINIMUM_SAMPLES 5
+#endif
+
+#ifndef QT_QWS_TP_PRESSURE_THRESHOLD
+#define QT_QWS_TP_PRESSURE_THRESHOLD 1
+#endif
+
+#ifndef QT_QWS_TP_MOVE_LIMIT
+#define QT_QWS_TP_MOVE_LIMIT 100
+#endif
+
+#ifndef QT_QWS_TP_JITTER_LIMIT
+#define QT_QWS_TP_JITTER_LIMIT 2
+#endif
+
+class QWSLinuxTPMouseHandlerPrivate : public QObject
+{
+    Q_OBJECT
+public:
+    QWSLinuxTPMouseHandlerPrivate(QWSLinuxTPMouseHandler *h, const QString &);
+    ~QWSLinuxTPMouseHandlerPrivate();
+
+    void suspend();
+    void resume();
+private:
+    static const int mouseBufSize = 2048;
+    int mouseFD;
+    QPoint oldmouse;
+    QPoint oldTotalMousePos;
+    bool waspressed;
+    QPolygon samples;
+    int currSample;
+    int lastSample;
+    int numSamples;
+    int skipCount;
+    int mouseIdx;
+    uchar mouseBuf[mouseBufSize];
+    QWSLinuxTPMouseHandler *handler;
+    QSocketNotifier *mouseNotifier;
+
+private slots:
+    void readMouseData();
+};
+
+QWSLinuxTPMouseHandler::QWSLinuxTPMouseHandler(const QString &driver, const QString &device)
+    : QWSCalibratedMouseHandler(driver, device)
+{
+    d = new QWSLinuxTPMouseHandlerPrivate(this, device);
+}
+
+QWSLinuxTPMouseHandler::~QWSLinuxTPMouseHandler()
+{
+    delete d;
+}
+
+void QWSLinuxTPMouseHandler::suspend()
+{
+    d->suspend();
+}
+
+void QWSLinuxTPMouseHandler::resume()
+{
+    d->resume();
+}
+
+QWSLinuxTPMouseHandlerPrivate::QWSLinuxTPMouseHandlerPrivate(QWSLinuxTPMouseHandler *h,
+        const QString &device)
+    : samples(QT_QWS_TP_SAMPLE_SIZE), currSample(0), lastSample(0),
+    numSamples(0), skipCount(0), handler(h)
+{
+    QString mousedev;
+    if (device.isEmpty()) {
+#if defined(QT_QWS_IPAQ)
+# ifdef QT_QWS_IPAQ_RAW
+        mousedev = QLatin1String("/dev/h3600_tsraw");
+# else
+        mousedev = QLatin1String("/dev/h3600_ts");
+# endif
+#else
+        mousedev = QLatin1String("/dev/ts");
+#endif
+    } else {
+        mousedev = device;
+    }
+    if ((mouseFD = open(mousedev.toLatin1().constData(), O_RDONLY | O_NDELAY)) < 0) {
+        qWarning("Cannot open %s (%s)", qPrintable(mousedev), strerror(errno));
+        return;
+    }
+
+    mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read,
+                                         this);
+    connect(mouseNotifier, SIGNAL(activated(int)),this, SLOT(readMouseData()));
+    waspressed=false;
+    mouseIdx = 0;
+}
+
+QWSLinuxTPMouseHandlerPrivate::~QWSLinuxTPMouseHandlerPrivate()
+{
+    if (mouseFD >= 0)
+        close(mouseFD);
+}
+
+void QWSLinuxTPMouseHandlerPrivate::suspend()
+{
+    if (mouseNotifier)
+        mouseNotifier->setEnabled(false);
+}
+
+void QWSLinuxTPMouseHandlerPrivate::resume()
+{
+    mouseIdx=0;
+    currSample=0;
+    lastSample=0;
+    numSamples=0;
+    skipCount=0;
+    if (mouseNotifier)
+        mouseNotifier->setEnabled(true);
+}
+
+
+void QWSLinuxTPMouseHandlerPrivate::readMouseData()
+{
+    if(!qt_screen)
+        return;
+
+    int n;
+    do {
+        n = read(mouseFD, mouseBuf+mouseIdx, mouseBufSize-mouseIdx);
+        if (n > 0)
+            mouseIdx += n;
+    } while (n > 0 && mouseIdx < mouseBufSize);
+
+    //qDebug("readMouseData()");
+
+    TS_EVENT *data;
+    int idx = 0;
+
+    // perhaps we shouldn't be reading EVERY SAMPLE.
+    while (mouseIdx-idx >= (int)sizeof(TS_EVENT)) {
+        uchar *mb = mouseBuf+idx;
+        data = (TS_EVENT *) mb;
+
+        if(data->pressure >= QT_QWS_TP_PRESSURE_THRESHOLD) {
+#ifdef QT_QWS_SHARP
+            samples[currSample] = QPoint(1000 - data->x, data->y);
+#else
+            samples[currSample] = QPoint(data->x, data->y);
+#endif
+            numSamples++;
+            if (numSamples >= QT_QWS_TP_MINIMUM_SAMPLES) {
+                int sampleCount = qMin(numSamples + 1,samples.count());
+
+                // average the rest
+                QPoint mousePos = QPoint(0, 0);
+                QPoint totalMousePos = oldTotalMousePos;
+                totalMousePos += samples[currSample];
+                if(numSamples >= samples.count())
+                    totalMousePos -= samples[lastSample];
+
+                mousePos = totalMousePos / (sampleCount - 1);
+#if defined(QT_QWS_SCREEN_COORDINATES)
+                mousePos = handler->transform(mousePos);
+#endif
+                if(!waspressed)
+                    oldmouse = mousePos;
+                QPoint dp = mousePos - oldmouse;
+                int dxSqr = dp.x() * dp.x();
+                int dySqr = dp.y() * dp.y();
+                if (dxSqr + dySqr < (QT_QWS_TP_MOVE_LIMIT * QT_QWS_TP_MOVE_LIMIT)) {
+                    if (waspressed) {
+                        if ((dxSqr + dySqr > (QT_QWS_TP_JITTER_LIMIT * QT_QWS_TP_JITTER_LIMIT)) || skipCount > 2) {
+                            handler->mouseChanged(mousePos,Qt::LeftButton);
+                            oldmouse = mousePos;
+                            skipCount = 0;
+                        } else {
+                            skipCount++;
+                        }
+                    } else {
+                        handler->mouseChanged(mousePos,Qt::LeftButton);
+                        oldmouse=mousePos;
+                        waspressed=true;
+                    }
+
+                    // save recuring information
+                    currSample++;
+                    if (numSamples >= samples.count())
+                        lastSample++;
+                    oldTotalMousePos = totalMousePos;
+                } else {
+                    numSamples--; // don't use this sample, it was bad.
+                }
+            } else {
+                // build up the average
+                oldTotalMousePos += samples[currSample];
+                currSample++;
+            }
+            if (currSample >= samples.count())
+                currSample = 0;
+            if (lastSample >= samples.count())
+                lastSample = 0;
+        } else {
+            currSample = 0;
+            lastSample = 0;
+            numSamples = 0;
+            skipCount = 0;
+            oldTotalMousePos = QPoint(0,0);
+            if (waspressed) {
+                handler->mouseChanged(oldmouse,0);
+                oldmouse = QPoint(-100, -100);
+                waspressed=false;
+            }
+        }
+        idx += sizeof(TS_EVENT);
+    }
+
+    int surplus = mouseIdx - idx;
+    for (int i = 0; i < surplus; i++)
+        mouseBuf[i] = mouseBuf[idx+i];
+    mouseIdx = surplus;
+}
+
+QT_END_NAMESPACE
+
+#include "qmouselinuxtp_qws.moc"
+
+#endif //QT_NO_QWS_MOUSE_LINUXTP