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().trimmed();
  45         QString word = QString::fromUtf8(tmp);
  46         if (word.isEmpty()) { // game over
  47                 qDebug() << "TODO: implement gameover";
  48                 exit (0);
  49         } else {
  50                 resetPlayerText();
  51                 mainLabel->setText(word);
  52                 typingPlayers = players.size();
  53         }
  54 }
  55
  56 void MultypoWindow::handleKeyPress(int device, QString string)
  57 {
  58         qDebug() << "Device" << device << "String" << string;
  59
  60         if (string == "Escape") {
  61                 close();
  62                 return;
  63         }
  64
  65         if (!players.contains(device)) {
  66                 players[device] = new Player(this);
  67         }
  68         players[device]->handleKey(string);
  69
  70         if (gameStarted) { // ingame
  71                 qDebug() << players[device]->getCurrentLine();
  72                 qDebug() << mainLabel->text();
  73                 if (players[device]->getCurrentLine() == mainLabel->text()) {
  74                         players[device]->score += typingPlayers;
  75                         QString readyString = QString("READY: %1 points").arg(typingPlayers);
  76                         players[device]->setWaiting(readyString);
  77                         qDebug() << "typingPlayers " << typingPlayers;
  78                         typingPlayers--;
  79                         qDebug() << "typingPlayers " << typingPlayers;
  80                         if (typingPlayers <= 0) {
  81                                 nextWord();
  82                         }
  83                 }
  84         } else { // name entering phase
  85                 bool allHaveNames = true;
  86                 for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  87                         if (! it.value()->hasName()) {
  88                                 allHaveNames = false;
  89                                 break;
  90                         }
  91                 }
  92                 if (!players.empty() && allHaveNames) {
  93                         gameStarted = true;
  94                         nextWord();
  95                 }
  96         }
  97 }
  98
  99 bool MultypoWindow::handleX11Event(XEvent *event)
 100 {
 101         Display *dpy = x11Info().display();
 102         /* Handle the first map event: We are finally visible! */
 103         if (!xiInited && event->type == MapNotify) {
 104                 /* XInput Extension available? */
 105                 int eventID, errorID;
 106                 if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
 107                    qCritical() << "X Input extension not available";
 108                 }
 109
 110                 /* Which version of XI2? We support 2.0 */
 111                 int major = 2, minor = 1;
 112                 if (XIQueryVersion(dpy, &major, &minor) == BadRequest) {
 113                         qCritical() << "XI2 not available. Server supports" << major << "." <<
 114                                                 minor;
 115                 }
 116
 117                 qDebug() << "System supports XI2";
 118
 119
 120                 // Now let's listen to keypress events
 121                 XIEventMask eventmask;
 122                 unsigned char mask [1] = { 0 }; // will change
 123                 eventmask.deviceid = XIAllMasterDevices;
 124                 eventmask.mask_len = sizeof (mask); // in bytes, for whatever reason...
 125                 eventmask.mask = mask;
 126                 XISetMask(mask, XI_KeyPress);
 127                 XISelectEvents (dpy, winId(), &eventmask, 1);
 128
 129                 // finally, grab all focuses
 130                 int ndevices;
 131                 XIDeviceInfo* devices = XIQueryDevice(dpy, XIAllMasterDevices, &ndevices);
 132                 for (int i = 0; i < ndevices; ++i) {
 133                         if (devices[i].use != XIMasterKeyboard) continue;
 134                         qDebug() << "Found master keyboard with ID" << devices[i].deviceid;
 135                         XISetFocus(dpy, devices[i].deviceid, winId(), CurrentTime);
 136                 }
 137                 XIFreeDeviceInfo(devices);
 138
 139                 xiInited = true;
 140
 141                 return false;
 142         }
 143         else if (xiInited && event->type == GenericEvent
 144                 && event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
 145                 && event->xcookie.evtype == XI_KeyPress) {
 146
 147                 if (XGetEventData(dpy, &event->xcookie) != True) {
 148                         qCritical() << "Error getting event data";
 149                         // FIXME return true;
 150                 }
 151
 152                 /* Handle XI event */
 153                 XIDeviceEvent *d_ev = (XIDeviceEvent*) event->xcookie.data;
 154             KeyCode keycode = d_ev->detail;
 155             int kbdid = d_ev->deviceid;
 156
 157                 if (!(d_ev->flags & XIKeyRepeat)) {
 158                         int keysyms_per_keycode;
 159                         KeySym keysym = XGetKeyboardMapping (dpy, keycode, 1, &keysyms_per_keycode)[0];
 160                         handleKeyPress(kbdid, XKeysymToString(keysym));
 161                 }
 162
 163                 XFreeEventData(dpy, &event->xcookie);
 164
 165                 return true;
 166         }
 167         else {
 168                 return false;
 169         }
 170 }