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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
QVFbMouseHandler(const QString & driver,const QString & device)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
~QVFbMouseHandler()86 QVFbMouseHandler::~QVFbMouseHandler()
87 {
88 if (mouseFD >= 0)
89 QT_CLOSE(mouseFD);
90 }
91
resume()92 void QVFbMouseHandler::resume()
93 {
94 mouseNotifier->setEnabled(true);
95 }
96
suspend()97 void QVFbMouseHandler::suspend()
98 {
99 mouseNotifier->setEnabled(false);
100 }
101
readMouseData()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
134