File indexing completed on 2024-05-12 16:34:30

 /* This file is part of the KDE project
  * Copyright (c) 2008 Hans Bakker <hansmbakker@gmail.com>
  * Copyright (c) 2008 Jan Hambrecht <jaham@gmx.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "SpaceNavigatorPollingThread.h"
 
 #include "SpaceNavigatorDebug.h"
 
 #include <KoInputDeviceHandlerEvent.h>
 
 #include <spnav.h>
 
 SpaceNavigatorPollingThread::SpaceNavigatorPollingThread( QObject * parent )
 : QThread( parent ), m_stopped( false )
 {
 }
 
 SpaceNavigatorPollingThread::~SpaceNavigatorPollingThread()
 {
 }
 
 void SpaceNavigatorPollingThread::run()
 {
     m_stopped = false;
     if(spnav_open() == -1)
         return;
 
     qreal posfactor = 0.1;
     int currX = 0, currY = 0, currZ = 0;
     int currRX = 0, currRY = 0, currRZ = 0;
     Qt::MouseButtons buttons = Qt::NoButton;
 
     debugSpaceNavigator << "started spacenavigator polling thread";
     while( ! m_stopped )
     {
         spnav_event event;
 
         if( spnav_poll_event( &event ) )
         {
             if( event.type == SPNAV_EVENT_MOTION )
             {
                 /*
                  * The coordinate system of the space navigator is like the following:
                  * x-axis : from left to right
                  * y-axis : from down to up
                  * z-axis : from front to back
                  * We probably want to make sure that the x- and y-axis match Qt widget
                  * coordinate system:
                  * x-axis : from left to right
                  * y-axis : from back to front
                  * The z-axis would then go from up to down in a right handed coordinate system.
                  * z-axis : from up to down
                  */
                 //debugSpaceNavigator << "got motion event: t("<< event.motion.x << event.motion.y << event.motion.z << ") r(" << event.motion.rx << event.motion.ry << event.motion.rz << ")";
                 currX = static_cast<int>( posfactor * event.motion.x );
                 currY = -static_cast<int>( posfactor * event.motion.z );
                 currZ = -static_cast<int>( posfactor * event.motion.y );
                 currRX = static_cast<int>( posfactor * event.motion.rx );
                 currRY = static_cast<int>( -posfactor * event.motion.rz );
                 currRZ = static_cast<int>( -posfactor * event.motion.ry );
                 emit moveEvent( currX, currY, currZ, currRX, currRY, currRZ, buttons );
             }
             else
             {
                 /* SPNAV_EVENT_BUTTON */
                 Qt::MouseButton button = event.button.bnum == 0 ? Qt::LeftButton : Qt::RightButton;
                 KoInputDeviceHandlerEvent::Type type;
                 if( event.button.press )
                 {
                     //debugSpaceNavigator << "got button press event b(" << event.button.bnum << ")";
                     buttons |= button;
                     type = KoInputDeviceHandlerEvent::ButtonPressed;
                 }
                 else
                 {
                     //debugSpaceNavigator << "got button release event b(" << event.button.bnum << ")";
                     buttons &= ~button;
                     type = KoInputDeviceHandlerEvent::ButtonReleased;
                 }
                 emit buttonEvent( currX, currY, currZ, currRX, currRY, currRZ, buttons, button, type );
             }
             spnav_remove_events( event.type );
         }
         msleep(10);
     }
 
     debugSpaceNavigator << "finished spacenavigator polling thread";
 }
 
 void SpaceNavigatorPollingThread::stop()
 {
     m_stopped = true;
 }