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                 mainLabel->setText("GAME OVER");
  48                 for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  49                         QString tmp = QString ("Spieler %1 hat %2 Punkte.").arg(it.value()->getName()).arg(it.value()->score);
  50                         it.value()->setWaiting(tmp);
  51                 }
  52         } else {
  53                 resetPlayerText();
  54                 mainLabel->setText(word);
  55                 typingPlayers = players.size();
  56         }
  57 }
  58
  59 void MultypoWindow::handleKeyPress(int device, QString string)
  60 {
  61         qDebug() << "Device" << device << "String" << string;
  62
  63         if (string == "Escape") {
  64                 close();
  65                 return;
  66         }
  67
  68         if (!players.contains(device)) {
  69                 players[device] = new Player(this);
  70         }
  71         players[device]->handleKey(string);
  72
  73         if (gameStarted) { // ingame
  74                 qDebug() << players[device]->getCurrentLine();
  75                 qDebug() << mainLabel->text();
  76                 if (players[device]->getCurrentLine() == mainLabel->text()) {
  77                         players[device]->score += typingPlayers;
  78                         QString readyString = QString("READY: %1 points").arg(typingPlayers);
  79                         players[device]->setWaiting(readyString);
  80                         qDebug() << "typingPlayers " << typingPlayers;
  81                         typingPlayers--;
  82                         qDebug() << "typingPlayers " << typingPlayers;
  83                         if (typingPlayers <= 0) {
  84                                 nextWord();
  85                         }
  86                 }
  87         } else { // name entering phase
  88                 bool allHaveNames = true;
  89                 for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  90                         if (! it.value()->hasName()) {
  91                                 allHaveNames = false;
  92                                 break;
  93                         }
  94                 }
  95                 if (!players.empty() && allHaveNames) {
  96                         gameStarted = true;
  97                         nextWord();
  98                 }
  99         }
 100 }
 101
 102 bool MultypoWindow::handleX11Event(XEvent *event)
 103 {
 104         Display *dpy = x11Info().display();
 105         /* Handle the first map event: We are finally visible! */
 106         if (!xiInited && event->type == MapNotify) {
 107                 /* XInput Extension available? */
 108                 int eventID, errorID;
 109                 if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
 110                    qCritical() << "X Input extension not available";
 111                 }
 112
 113                 /* Which version of XI2? We support 2.0 */
 114                 int major = 2, minor = 1;
 115                 if (XIQueryVersion(dpy, &major, &minor) == BadRequest) {
 116                         qCritical() << "XI2 not available. Server supports" << major << "." <<
 117                                                 minor;
 118                 }
 119
 120                 qDebug() << "System supports XI2";
 121
 122
 123                 // Now let's listen to keypress events
 124                 XIEventMask eventmask;
 125                 unsigned char mask [1] = { 0 }; // will change
 126                 eventmask.deviceid = XIAllMasterDevices;
 127                 eventmask.mask_len = sizeof (mask); // in bytes, for whatever reason...
 128                 eventmask.mask = mask;
 129                 XISetMask(mask, XI_KeyPress);
 130                 XISelectEvents (dpy, winId(), &eventmask, 1);
 131
 132                 // finally, grab all focuses
 133                 int ndevices;
 134                 XIDeviceInfo* devices = XIQueryDevice(dpy, XIAllMasterDevices, &ndevices);
 135                 for (int i = 0; i < ndevices; ++i) {
 136                         if (devices[i].use != XIMasterKeyboard) continue;
 137                         qDebug() << "Found master keyboard with ID" << devices[i].deviceid;
 138                         XISetFocus(dpy, devices[i].deviceid, winId(), CurrentTime);
 139                 }
 140                 XIFreeDeviceInfo(devices);
 141
 142                 xiInited = true;
 143
 144                 return false;
 145         }
 146         else if (xiInited && event->type == GenericEvent
 147                 && event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
 148                 && event->xcookie.evtype == XI_KeyPress) {
 149
 150                 if (XGetEventData(dpy, &event->xcookie) != True) {
 151                         qCritical() << "Error getting event data";
 152                         // FIXME return true;
 153                 }
 154
 155                 /* Handle XI event */
 156                 XIDeviceEvent *d_ev = (XIDeviceEvent*) event->xcookie.data;
 157             KeyCode keycode = d_ev->detail;
 158             int kbdid = d_ev->deviceid;
 159
 160                 if (!(d_ev->flags & XIKeyRepeat)) {
 161                         int keysyms_per_keycode;
 162                         KeySym keysym = XGetKeyboardMapping (dpy, keycode, 1, &keysyms_per_keycode)[0];
 163                         handleKeyPress(kbdid, XKeysymToString(keysym));
 164                 }
 165
 166                 XFreeEventData(dpy, &event->xcookie);
 167
 168                 return true;
 169         }
 170         else {
 171                 return false;
 172         }
 173 }