X-Git-Url: https://git.ralfj.de/multypo.git/blobdiff_plain/d06ad1b372082777c92dbc4065c0a355bc2bef93..9892f674393394ef97f5f9dad6a9e4e435f771ed:/qt/multypo.cpp

diff --git a/qt/multypo.cpp b/qt/multypo.cpp
index a5d8137..2584c0c 100644
--- a/qt/multypo.cpp
+++ b/qt/multypo.cpp
@@ -2,7 +2,7 @@
 
 #include <QX11Info>
 #include <QDebug>
-#include <QHBoxLayout>
+#include <QVBoxLayout>
 #include <QLabel>
 
 #include <X11/Xlib.h>
@@ -13,67 +13,87 @@ MultypoWindow::MultypoWindow(QWidget *parent) :
 	QWidget(parent),
 	xiInited(false)
 {
-	QHBoxLayout *layout = new QHBoxLayout(this);
-	setLayout(layout);
+	/* Prepare colors */
+	setStyleSheet("background-color: black; color: green");
 
-	mainLabel = new QLabel(this);
-	layout->addWidget(mainLabel);
+	/* Prepare conents */
+	setLayout(new QVBoxLayout(this));
 
-	setMinimumSize(300, 300);
+	mainLabel = new QLabel("Hit <Esc> to quit", this);
+	layout()->addWidget(mainLabel);
+
+	/* Fullscreen, no cursor */
+	setWindowState(Qt::WindowFullScreen);
+	setCursor(QCursor(Qt::BlankCursor));
 }
 
 MultypoWindow::~MultypoWindow()
 {
 }
 
-void MultypoWindow::showEvent ( QShowEvent * )
+void MultypoWindow::handleKeyPress(int device, QString string)
 {
-	if (xiInited) return;
-
-	Display *dpy = x11Info().display();
+	qDebug() << "Device" << device << "String" << string;
 
-	/* XInput Extension available? */
-	int eventID, errorID;
-	if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
-	   qCritical() << "X Input extension not available";
-	}
+	if (string == "Escape")
+		close();
 
-	/* Which version of XI2? We support 2.0 */
-	int major = 2, minor = 0;
-	if (XIQueryVersion(dpy, &major, &minor) == BadRequest) {
-		qCritical() << "XI2 not available. Server supports" << major << "." <<
-					minor;
+	if (!players.contains(device)) {
+		QLabel *label = new QLabel(this);
+		layout()->addWidget(label);
+		players[device] = label;
 	}
-
-	qDebug() << "System is sane";
-
-
-	// Now let's listen to keypress events
-	XIEventMask eventmask;
-	unsigned char mask [1] = { 0 }; // will change
-	eventmask.deviceid = XIAllMasterDevices;
-	eventmask.mask_len = sizeof (mask); // in bytes, for whatever reason...
-	eventmask.mask = mask;
-	XISetMask(mask, XI_KeyPress);
-	XISelectEvents (dpy, winId(), &eventmask, 1);
-
-	xiInited = true;
-}
-
-void MultypoWindow::handleKeyPress(int device, QString string)
-{
-	qDebug() << "Device" << device << "String" << string;
-	mainLabel->setText(QString("%1 pressed on %2").arg(string).arg(device));
+	players[device]->setText(players[device]->text() + string);
 }
 
 bool MultypoWindow::handleX11Event(XEvent *event)
 {
-	if (!xiInited) return false;
 	Display *dpy = x11Info().display();
+	/* Handle the first map event: We are finally visible! */
+	if (!xiInited && event->type == MapNotify) {
+		/* XInput Extension available? */
+		int eventID, errorID;
+		if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
+		   qCritical() << "X Input extension not available";
+		}
 
-	if (event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
-		&& event->xcookie.evtype == XI_KeyPress && XGetEventData(dpy, &event->xcookie)) {
+		/* Which version of XI2? We support 2.0 */
+		int major = 2, minor = 0;
+		if (XIQueryVersion(dpy, &major, &minor) == BadRequest) {
+			qCritical() << "XI2 not available. Server supports" << major << "." <<
+						minor;
+		}
+
+		qDebug() << "System supports XI2";
+
+
+		// Now let's listen to keypress events
+		XIEventMask eventmask;
+		unsigned char mask [1] = { 0 }; // will change
+		eventmask.deviceid = XIAllMasterDevices;
+		eventmask.mask_len = sizeof (mask); // in bytes, for whatever reason...
+		eventmask.mask = mask;
+		XISetMask(mask, XI_KeyPress);
+		XISelectEvents (dpy, winId(), &eventmask, 1);
+
+		// finally, grab all focuses
+		int ndevices;
+		XIDeviceInfo* devices = XIQueryDevice(dpy, XIAllMasterDevices, &ndevices);
+		for (int i = 0; i < ndevices; ++i) {
+			if (devices[i].use != XIMasterKeyboard) continue;
+			qDebug() << "Found master keyboard with ID" << devices[i].deviceid;
+			XISetFocus(dpy, devices[i].deviceid, winId(), CurrentTime);
+		}
+		XIFreeDeviceInfo(devices);
+
+		xiInited = true;
 
+		return false;
+	}
+	else if (xiInited && event->type == GenericEvent
+		&& event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
+		&& event->xcookie.evtype == XI_KeyPress && XGetEventData(dpy, &event->xcookie)) {
+		/* Handle XI event */
 		XIDeviceEvent *d_ev = (XIDeviceEvent*) event->xcookie.data;
 	    KeyCode keycode = d_ev->detail;
 	    int kbdid = d_ev->deviceid;
@@ -88,6 +108,7 @@ bool MultypoWindow::handleX11Event(XEvent *event)
 
 		return true;
 	}
-
-	return false;
+	else {
+		return false;
+	}
 }