SpaceMouseSource.h

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 /* ========================================================================
  * Copyright (c) 2006,
  * Institute for Computer Graphics and Vision
  * Graz University of Technology
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * Redistributions of source code must retain the above copyright notice,
  * this list of conditions and the following disclaimer.
  *
  * Redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
  * documentation and/or other materials provided with the distribution.
  *
  * Neither the name of the Graz University of Technology nor the names of
  * its contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  * ========================================================================
  * PROJECT: OpenTracker
  * ======================================================================== */
 /* ======================================================================= */

#ifndef _SPACEMOUSESOURCE_H
#define _SPACEMOUSESOURCE_H

#include "../OpenTracker.h"
#include "../common/ConsoleSource.h"

#ifdef USE_SPACEMOUSE

#define OTCOM_NONE                              0
#define OTCOM_RESETPOSITION             1
#define OTCOM_RESETROTATION             2
#define OTCOM_TOGGLE_ROTATECAMERAAXIS  3




namespace ot {

class OPENTRACKER_API SpaceMouseSource : public Node
{
// Members
public: 
    Event event;

// Methods
public:
    SpaceMouseSource() : Node()
    {
                // default values
                tWeightDefault = 0.5f;
                rWeightDefault = 0.1f;

                tWeight = tWeightDefault;
                rWeight = rWeightDefault;

                nlDistance = 10;
                gogok = 1.0f;  //1.0f/6.0f;
                //scale = 1.0f;

                useAbsRotation = true;
        };
        
    virtual int isEventGenerator()
    {
        return 1;
    }

    void push()
    {
        event.timeStamp();
        updateObservers( event );
    }

virtual void onEventGenerated( Event& event, Node& generator);

protected:
        // SpaceMouse Cursor-specific variables
        bool useAbsRotation;

        // User Position
        Event usrpos;
        // This Event holds the current cursor position and is sent to the observers
    Event tmpEvent;

        // Weights
        float tWeight;
        float rWeight;  // weights for translation and rotation
        float tWeightDefault;
        float rWeightDefault;

        bool extNode;

        // scaling factor (extNode)
        //float scale;
        //float cursorDistance;

        // parameters for GoGo Interaction
        float nlDistance;                       // distance where non-linear movement starts
    float gogok;                                // scaling factor for nonlinear movement acceleration
    
    // A flag to indicate whether tmpState was changed during processing
    int changed;

        friend class SpaceMouseModule;
};

}  // namespace ot

#endif //USE_SPACEMOUSE

#endif //_SPACEMOUSESOURCE_H

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