qt/multypo.cpp

   1 #include "multypo.h"
   2
   3 #include <QX11Info>
   4 #include <QDebug>
   5 #include <QVBoxLayout>
   6 #include <QLabel>
   7 #include <QMap>
   8 #include <QTextDocument>
   9
  10 #include <X11/Xlib.h>
  11 #include <X11/extensions/XInput2.h>
  12 #include <X11/Xutil.h>
  13
  14 MultypoWindow::MultypoWindow(QWidget *parent) :
  15         QWidget(parent),
  16     state(Naming),
  17         xiInited(false)
  18 {
  19         /* Prepare colors */
  20         setStyleSheet("background-color: black; font-size: 45pt");
  21
  22         /* Prepare conents */
  23         setLayout(new QVBoxLayout(this));
  24         mainLabel = new QLabel(this);
  25     mainLabel->setTextFormat(Qt::RichText);
  26     setLabel("Namen eingeben, dann Return", BASE_COLOR);
  27         layout()->addWidget(mainLabel);
  28
  29         /* Fullscreen, no cursor */
  30         setWindowState(Qt::WindowFullScreen);
  31         setCursor(QCursor(Qt::BlankCursor));
  32
  33         words.open(stdin,QIODevice::ReadOnly);
  34 }
  35
  36 MultypoWindow::~MultypoWindow()
  37 {
  38 }
  39
  40 void MultypoWindow::setLabel(QString text, QString color)
  41 {
  42     mainLabel->setText(QString("<font color=%1>%2</span>").arg(color).arg(Qt::escape(text)));
  43 }
  44
  45 void MultypoWindow::nextWord() {
  46         QByteArray tmp = words.readLine().trimmed();
  47         currentWord = QString::fromUtf8(tmp);
  48         qDebug() << "New word:" << currentWord;
  49         if (currentWord.isEmpty()) { // game over
  50                 setLabel("GAME OVER", READY_COLOR);
  51                 for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  52                         it.value()->showScore();
  53                 }
  54                 state = Scoring;
  55         } else {
  56                 for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  57             it.value()->nextWord();
  58         }
  59                 setLabel(currentWord, BASE_COLOR);
  60         state = Playing;
  61         }
  62 }
  63
  64 bool MultypoWindow::allPlayersWaiting()
  65 {
  66     for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  67         if (it.value()->getState() != Player::Waiting) return false;
  68     }
  69     return true;
  70 }
  71
  72 int MultypoWindow::typingPlayers()
  73 {
  74     int n = 0;
  75     for (QMap<int, Player*>::Iterator it = players.begin(); it != players.end(); ++it) {
  76         if (it.value()->getState() == Player::Typing) ++n;
  77     }
  78     return n;
  79 }
  80
  81 void MultypoWindow::handleKeyPress(int device, QString string)
  82 {
  83         qDebug() << "Device" << device << "String" << string;
  84
  85         if (string == "Escape") {
  86                 close();
  87                 return;
  88         }
  89
  90         if (!players.contains(device)) {
  91                 if (state > Naming)
  92                         return;
  93                 players[device] = new Player(this);
  94         }
  95         Player *player = players[device];
  96         player->handleKey(string);
  97
  98     if (state == Naming) {
  99         // someone's still naming (or nobody's there yet)
 100         if (!players.empty() && allPlayersWaiting()) {
 101             qDebug() << "Game starting";
 102             nextWord();
 103         }
 104     }
 105     else if (state == Playing) { // all players are waiting or typing
 106                 if (player->getState() == Player::Typing && player->getCurrentWord() == currentWord) {
 107             int points = typingPlayers()+1;
 108             player->wordComplete(points);
 109                         QString readyString = QString("READY: %1 points").arg(points);
 110                         if (allPlayersWaiting()) {
 111                                 nextWord();
 112                         }
 113                 }
 114         }
 115 }
 116
 117 bool MultypoWindow::handleX11Event(XEvent *event)
 118 {
 119         Display *dpy = x11Info().display();
 120         /* Handle the first map event: We are finally visible! */
 121         if (!xiInited && event->type == MapNotify) {
 122                 /* XInput Extension available? */
 123                 int eventID, errorID;
 124                 if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
 125                    qCritical() << "X Input extension not available";
 126                 }
 127
 128                 /* Which version of XI2? We support 2.0 */
 129                 int major = 2, minor = 1;
 130                 if (XIQueryVersion(dpy, &major, &minor) == BadRequest) {
 131                         qCritical() << "XI2 not available. Server supports" << major << "." <<
 132                                                 minor;
 133                 }
 134
 135                 qDebug() << "System supports XI2";
 136
 137
 138                 // Now let's listen to keypress events
 139                 XIEventMask eventmask;
 140                 unsigned char mask [1] = { 0 }; // will change
 141                 eventmask.deviceid = XIAllMasterDevices;
 142                 eventmask.mask_len = sizeof (mask); // in bytes, for whatever reason...
 143                 eventmask.mask = mask;
 144                 XISetMask(mask, XI_KeyPress);
 145                 XISelectEvents (dpy, winId(), &eventmask, 1);
 146
 147                 // finally, grab all focuses
 148                 int ndevices;
 149                 XIDeviceInfo* devices = XIQueryDevice(dpy, XIAllMasterDevices, &ndevices);
 150                 for (int i = 0; i < ndevices; ++i) {
 151                         if (devices[i].use != XIMasterKeyboard) continue;
 152                         qDebug() << "Found master keyboard with ID" << devices[i].deviceid;
 153                         XISetFocus(dpy, devices[i].deviceid, winId(), CurrentTime);
 154                 }
 155                 XIFreeDeviceInfo(devices);
 156
 157                 xiInited = true;
 158
 159                 return false;
 160         }
 161         else if (xiInited && event->type == GenericEvent
 162                 && event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
 163                 && event->xcookie.evtype == XI_KeyPress) {
 164
 165                 if (XGetEventData(dpy, &event->xcookie) != True) {
 166                         qCritical() << "Error getting event data";
 167                         // FIXME return true;
 168                 }
 169
 170                 /* Handle XI event */
 171                 XIDeviceEvent *d_ev = (XIDeviceEvent*) event->xcookie.data;
 172             KeyCode keycode = d_ev->detail;
 173             int kbdid = d_ev->deviceid;
 174
 175                 if (!(d_ev->flags & XIKeyRepeat)) {
 176                         int keysyms_per_keycode;
 177                         KeySym keysym = XGetKeyboardMapping (dpy, keycode, 1, &keysyms_per_keycode)[0];
 178                         handleKeyPress(kbdid, XKeysymToString(keysym));
 179                 }
 180
 181                 XFreeEventData(dpy, &event->xcookie);
 182
 183                 return true;
 184         }
 185         else {
 186                 return false;
 187         }
 188 }