qt/multypo.cpp

   1 #include "multypo.h"
   2
   3 #include <QX11Info>
   4 #include <QDebug>
   5 #include <QVBoxLayout>
   6 #include <QLabel>
   7 #include <QMap>
   8
   9 #include <X11/Xlib.h>
  10 #include <X11/extensions/XInput2.h>
  11 #include <X11/Xutil.h>
  12
  13 MultypoWindow::MultypoWindow(QWidget *parent) :
  14         QWidget(parent),
  15         xiInited(false)
  16 {
  17         /* Prepare colors */
  18         setStyleSheet("background-color: black; color: green; font-size: 30pt");
  19
  20         /* Prepare conents */
  21         setLayout(new QVBoxLayout(this));
  22
  23         mainLabel = new QLabel("Hit <Esc> to quit", this);
  24         layout()->addWidget(mainLabel);
  25
  26         /* Fullscreen, no cursor */
  27         setWindowState(Qt::WindowFullScreen);
  28         setCursor(QCursor(Qt::BlankCursor));
  29
  30         words.open(stdin,QIODevice::ReadOnly);
  31 }
  32
  33 MultypoWindow::~MultypoWindow()
  34 {
  35 }
  36
  37 void MultypoWindow::resetPlayerText() {
  38         for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  39                 it.value()->resetText();
  40         }
  41 }
  42
  43 void MultypoWindow::nextWord() {
  44         QByteArray tmp = words.readLine();
  45         QString word = QString::fromUtf8(tmp);
  46         mainLabel->setText(word);
  47 }
  48
  49 void MultypoWindow::handleKeyPress(int device, QString string)
  50 {
  51         qDebug() << "Device" << device << "String" << string;
  52
  53         if (string == "Escape") {
  54                 close();
  55                 return;
  56         }
  57
  58         if (!players.contains(device)) {
  59                 players[device] = new Player(this);
  60         }
  61         players[device]->handleKey(string);
  62
  63         if (gameStarted) { // ingame
  64
  65         } else { // name entering phase
  66                 bool allHaveNames = true;
  67                 for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  68                         if (! it.value()->hasName()) {
  69                                 allHaveNames = false;
  70                                 break;
  71                         }
  72                 }
  73                 if (!players.empty() && allHaveNames) {
  74                         gameStarted = true;
  75                         nextWord();
  76                 }
  77         }
  78 }
  79
  80 bool MultypoWindow::handleX11Event(XEvent *event)
  81 {
  82         Display *dpy = x11Info().display();
  83         /* Handle the first map event: We are finally visible! */
  84         if (!xiInited && event->type == MapNotify) {
  85                 /* XInput Extension available? */
  86                 int eventID, errorID;
  87                 if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
  88                    qCritical() << "X Input extension not available";
  89                 }
  90
  91                 /* Which version of XI2? We support 2.0 */
  92                 int major = 2, minor = 1;
  93                 if (XIQueryVersion(dpy, &major, &minor) == BadRequest) {
  94                         qCritical() << "XI2 not available. Server supports" << major << "." <<
  95                                                 minor;
  96                 }
  97
  98                 qDebug() << "System supports XI2";
  99
 100
 101                 // Now let's listen to keypress events
 102                 XIEventMask eventmask;
 103                 unsigned char mask [1] = { 0 }; // will change
 104                 eventmask.deviceid = XIAllMasterDevices;
 105                 eventmask.mask_len = sizeof (mask); // in bytes, for whatever reason...
 106                 eventmask.mask = mask;
 107                 XISetMask(mask, XI_KeyPress);
 108                 XISelectEvents (dpy, winId(), &eventmask, 1);
 109
 110                 // finally, grab all focuses
 111                 int ndevices;
 112                 XIDeviceInfo* devices = XIQueryDevice(dpy, XIAllMasterDevices, &ndevices);
 113                 for (int i = 0; i < ndevices; ++i) {
 114                         if (devices[i].use != XIMasterKeyboard) continue;
 115                         qDebug() << "Found master keyboard with ID" << devices[i].deviceid;
 116                         //XISetFocus(dpy, devices[i].deviceid, winId(), CurrentTime);
 117                 }
 118                 XIFreeDeviceInfo(devices);
 119
 120                 xiInited = true;
 121
 122                 return false;
 123         }
 124         else if (xiInited && event->type == GenericEvent
 125                 && event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
 126                 && event->xcookie.evtype == XI_KeyPress) {
 127
 128                 if (XGetEventData(dpy, &event->xcookie) != True) {
 129                         qCritical() << "Error getting event data";
 130                         // FIXME return true;
 131                 }
 132
 133                 /* Handle XI event */
 134                 XIDeviceEvent *d_ev = (XIDeviceEvent*) event->xcookie.data;
 135             KeyCode keycode = d_ev->detail;
 136             int kbdid = d_ev->deviceid;
 137
 138                 if (!(d_ev->flags & XIKeyRepeat)) {
 139                         int keysyms_per_keycode;
 140                         KeySym keysym = XGetKeyboardMapping (dpy, keycode, 1, &keysyms_per_keycode)[0];
 141                         handleKeyPress(kbdid, XKeysymToString(keysym));
 142                 }
 143
 144                 XFreeEventData(dpy, &event->xcookie);
 145
 146                 return true;
 147         }
 148         else {
 149                 return false;
 150         }
 151 }