diff -r 6baa91ac3199 -r 1383ad1c4f57 src/SpacenavWrapper.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/SpacenavWrapper.cpp	Thu Mar 07 14:55:56 2019 +0100
@@ -0,0 +1,80 @@
+/**
+ * Spacenav Demo Qt
+ * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <spnav.h>
+#include "SpacenavWrapper.h"
+
+SpacenavWrapper::SpacenavWrapper() {
+	// TODO: remove logging
+	if (spnav_open() == 0) {
+		std::wcout << L"connected through: AF_UNIX socket" << std::endl;
+	} else {
+
+		Display* display;
+		Window window;
+		unsigned long blackPixel;
+
+
+		if (!(display = XOpenDisplay(0))) {
+			std::wcout << L"unable to connect to the X server" << std::endl;
+			return; // TODO: throw exception
+		}
+
+		blackPixel = BlackPixel(display, DefaultScreen(display));
+		window = XCreateSimpleWindow(display, DefaultRootWindow(display), 0, 0, 1, 1, 0, blackPixel, blackPixel);
+
+		if (spnav_x11_open(display, window) == 0) {
+			std::wcout << L"connected through: X11" << std::endl;
+		} else {
+			std::wcout << L"unable to connect to the space navigator daemon" << std::endl;
+			return; // TODO: throw exception
+		}
+	}
+}
+
+SpacenavWrapper::~SpacenavWrapper() {
+	// TODO: remove logging
+	std::wcout << L"calling spnav_close() in ~SpacenavReceiver()" << std::endl;
+	spnav_close();
+}
+
+SpacenavWrapper::Event SpacenavWrapper::waitEvent() {
+	SpacenavWrapper::Event e;
+	spnav_event event;
+
+	if (spnav_wait_event(&event)) {
+
+		// TODO: copy fields
+
+
+		// TODO: remove logging
+		if (event.type == SPNAV_EVENT_MOTION) {
+			std::wcout << L"xxx motion event: t(" << event.motion.x << L", " << event.motion.y << L", " << event.motion.z << L") ";
+			std::wcout << L"r(" << event.motion.rx << L", " << event.motion.ry << L", " << event.motion.rz << L")" << std::endl;
+		} else { /* SPNAV_EVENT_BUTTON */
+			std::wcout << L"xxx button " << (event.button.press ? "press" : "release") << L" event b(" << event.button.bnum << L")" << std::endl;
+		}
+
+
+		return e;
+	} else {
+		// TODO: throw exception
+		return e;
+	}
+
+}