X-Git-Url: https://git.ralfj.de/multypo.git/blobdiff_plain/92b261fa3486e341f2bbec499662a726e6376913..d80ad6a5afce75add282ea1dce0d71927c0c459b:/qt/multikbd.cpp

diff --git a/qt/multikbd.cpp b/qt/multikbd.cpp
new file mode 100644
index 0000000..c43dd20
--- /dev/null
+++ b/qt/multikbd.cpp
@@ -0,0 +1,91 @@
+#include "multikbd.h"
+#include "ui_multikbd.h"
+
+#include <QX11Info>
+#include <QDebug>
+
+#include <X11/Xlib.h>
+#include <X11/extensions/XInput2.h>
+#include <X11/Xutil.h>
+
+MultiKBD::MultiKBD(QWidget *parent) :
+	QWidget(parent),
+	ui(new Ui::MultiKBD),
+	xiInited(false)
+{
+	ui->setupUi(this);
+}
+
+MultiKBD::~MultiKBD()
+{
+	delete ui;
+}
+
+void MultiKBD::showEvent ( QShowEvent * )
+{
+	if (xiInited) return;
+
+	Display *dpy = x11Info().display();
+
+	/* XInput Extension available? */
+	int eventID, errorID;
+	if (!XQueryExtension(dpy, "XInputExtension", &xiOpcode, &eventID, &errorID)) {
+	   qCritical() << "X Input extension not available";
+	}
+
+	/* 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 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;
+
+	/*activateWindow();
+	raise();
+	setFocus(Qt::OtherFocusReason);*/
+}
+
+void MultiKBD::handleKeyPress(int device, const char *string)
+{
+	qDebug() << "Device" << device << "String" << string;
+}
+
+bool MultiKBD::handleX11Event(XEvent *event)
+{
+	if (!xiInited) return false;
+	Display *dpy = x11Info().display();
+
+	if (event->xcookie.type == GenericEvent && event->xcookie.extension == xiOpcode
+		&& event->xcookie.evtype == XI_KeyPress && XGetEventData(dpy, &event->xcookie)) {
+
+		XIDeviceEvent *d_ev = (XIDeviceEvent*) event->xcookie.data;
+	    KeyCode keycode = d_ev->detail;
+	    int kbdid = d_ev->deviceid;
+
+		if (!(d_ev->flags & XIKeyRepeat)) {
+			int keysyms_per_keycode;
+			KeySym keysym = XGetKeyboardMapping (dpy, keycode, 1, &keysyms_per_keycode)[0];
+			handleKeyPress(kbdid, XKeysymToString(keysym));
+		}
+
+		XFreeEventData(dpy, &event->xcookie);
+
+		return true;
+	}
+
+	return false;
+}