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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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    16 ** GNU Lesser General Public License Usage

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    41 

    42 #ifndef QT_NO_QWS_MOUSE_QVFB

    43 

    44 #include <stdlib.h>

    45 #include <sys/types.h>

    46 #include <unistd.h>

    47 #include <fcntl.h>

    48 #include <errno.h>

    49 #include <stdio.h>

    50 

    51 #include <qvfbhdr.h>

    52 #include <qmousevfb_qws.h>

    53 #include <qwindowsystem_qws.h>

    54 #include <qsocketnotifier.h>

    55 #include <qapplication.h>

    56 #include <qtimer.h>

    57 #include <private/qcore_unix_p.h> // overrides QT_OPEN

    58 

    59 QT_BEGIN_NAMESPACE

    60 

    61 QVFbMouseHandler::QVFbMouseHandler(const QString &driver, const QString &device)

    62     : QObject(), QWSMouseHandler(driver, device)

    63 {

    64     QString mouseDev = device;

    65     if (device.isEmpty())

    66         mouseDev = QLatin1String("/dev/vmouse");

    67 

    68     mouseFD = QT_OPEN(mouseDev.toLatin1().constData(), O_RDWR | O_NDELAY);

    69     if (mouseFD == -1) {

    70         perror("QVFbMouseHandler::QVFbMouseHandler");

    71         qWarning("QVFbMouseHander: Unable to open device %s",

    72                  qPrintable(mouseDev));

    73         return;

    74     }

    75 

    76     // Clear pending input

    77     char buf[2];

    78     while (QT_READ(mouseFD, buf, 1) > 0) { }

    79 

    80     mouseIdx = 0;

    81 

    82     mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read, this);

    83     connect(mouseNotifier, SIGNAL(activated(int)),this, SLOT(readMouseData()));

    84 }

    85 

    86 QVFbMouseHandler::~QVFbMouseHandler()

    87 {

    88     if (mouseFD >= 0)

    89         QT_CLOSE(mouseFD);

    90 }

    91 

    92 void QVFbMouseHandler::resume()

    93 {

    94     mouseNotifier->setEnabled(true);

    95 }

    96 

    97 void QVFbMouseHandler::suspend()

    98 {

    99     mouseNotifier->setEnabled(false);

   100 }

   101 

   102 void QVFbMouseHandler::readMouseData()

   103 {

   104     int n;

   105     do {

   106         n = QT_READ(mouseFD, mouseBuf+mouseIdx, mouseBufSize-mouseIdx);

   107         if (n > 0)

   108             mouseIdx += n;

   109     } while (n > 0);

   110 

   111     int idx = 0;

   112     static const int packetsize = sizeof(QPoint) + 2*sizeof(int);

   113     while (mouseIdx-idx >= packetsize) {

   114         uchar *mb = mouseBuf+idx;

   115         QPoint mousePos = *reinterpret_cast<QPoint *>(mb);

   116         mb += sizeof(QPoint);

   117         int bstate = *reinterpret_cast<int *>(mb);

   118         mb += sizeof(int);

   119         int wheel = *reinterpret_cast<int *>(mb);

   120 //        limitToScreen(mousePos);

   121         mouseChanged(mousePos, bstate, wheel);

   122         idx += packetsize;

   123     }

   124 

   125     int surplus = mouseIdx - idx;

   126     for (int i = 0; i < surplus; i++)

   127         mouseBuf[i] = mouseBuf[idx+i];

   128     mouseIdx = surplus;

   129 }

   130 

   131 QT_END_NAMESPACE

   132 

   133 #endif // QT_NO_QWS_MOUSE_QVFB