/**
* Spacenav Demo Qt
* Copyright © 2018 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/>.
*/
#pragma once
#include <iostream>
#include <QObject>
#include <QThread>
#include <spnav.h>
Q_DECLARE_METATYPE(spnav_event)
class SpacenavReceiver : public QThread {
Q_OBJECT
public:
SpacenavReceiver() : QThread() {
}
virtual ~SpacenavReceiver() {
std::wcout << L"calling spnav_close() in ~SpacenavReceiver()" << std::endl;
spnav_close();
}
void run() {
spnav_event event;
// Connect
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
}
}
// For stopping this thread by pressing both buttons:
bool pressed0 = false;
bool pressed1 = false;
// Process events
while (spnav_wait_event(&event)) {
if (event.type == SPNAV_EVENT_MOTION) {
std::wcout << L"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"button " << (event.button.press ? "press" : "release") << L" event b(" << event.button.bnum << L")" << std::endl;
if (event.button.bnum == 0) pressed0 = event.button.press;
if (event.button.bnum == 1) pressed1 = event.button.press;
if (pressed0 && pressed1) {
std::wcout << L"both buttons pressed → stop receiving events" << std::endl;
break;
}
}
emit spacenavEvent(event);
}
}
signals:
void spacenavEvent(spnav_event sev);
};