GCamera.h

/***************************************************************************
 *   Copyright (C) 2004 - 2006 by Raphael Langerhorst                      *
 *   raphael-langerhorst@gmx.at                                            *
 *                                                                         *
 *   Permission is hereby granted, free of charge, to any person obtaining *
 *   a copy of this software and associated documentation files (the       *
 *   "Software"), to deal in the Software without restriction, including   *
 *   without limitation the rights to use, copy, modify, merge, publish,   *
 *   distribute, sublicense, and/or sell copies of the Software, and to    *
 *   permit persons to whom the Software is furnished to do so, subject to *
 *   the following conditions:                                             *
 *                                                                         *
 *   The above copyright notice and this permission notice shall be        *
 *   included in all copies or substantial portions of the Software.       *
 *                                                                         *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       *
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    *
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*
 *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR     *
 *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR *
 *   OTHER DEALINGS IN THE SOFTWARE.                                       *
 ***************************************************************************/

#ifndef GCECAMERAH
#define GCECAMERAH

#include <GForm.h>
#include <GVector3.h>

#include <QObject>
#include <QThread>
#include <QEvent>
#include <QDateTime>

#include "GOpenGLFrame.h"

namespace GBE
{
  class GMoveAgent;
}

namespace GCE 
{

class GCamera : public QObject
{
  Q_OBJECT
  
  protected:
  
    QTime KeyUpdateTime;
  
    GOpenGLFrame* Frame;
    
    GCS::GForm Form;
    
    QMutex FormMutex;
    
    double ViewDistancePercent;

    double SpeedFactor;
    
    double speedx;
    
    double speedy;
    
    bool shutdown;
    
    
    // KEY STATES
    bool left_key_down;
    bool right_key_down;
    bool up_key_down;
    bool down_key_down;
    bool space_key_down;
  
  public:
    GCamera(GOpenGLFrame* frame = NULL, QObject* parent = 0);

    ~GCamera();
    
  protected:
    
    virtual bool eventFilter(QObject* watched, QEvent* e);
   
  public slots:
  
    virtual void update();
    
    virtual void setFrame(GOpenGLFrame* frame);
    
    virtual void connectMoveAgent(GBE::GMoveAgent* agent);
    
    virtual void formUpdated(const GCS::GForm& form);
    
    virtual void startCamera();
    
    virtual void stopCamera();
    
    virtual void setViewDistance(int new_distance_percent);

    virtual void setSpeedFactor(double speed_factor);
    
  signals:
  
    void action(const QString& actionname, QStringList params);
    
//     /**
//      * Emitted when the camera, usually on behalf of the user,
//      * wants to change the speed. Since a camera is connected
//      * to a form, this signal should probably be connected to
//      * a GBE::GMoveAgent::addTranslationSpeedImpulse()
//      */
//     void translationSpeedImpulse(const GCS::GVector3& v);
//     
//     /**
//      * Emitted when the camera, usually on behalf of the user,
//      * wants to change the speed. Since a camera is connected
//      * to a form, this signal should probably be connected to
//      * a GBE::GMoveAgent::addRotationSpeedImpulse()
//      */
//     void rotationSpeedImpulse(const GCS::GVector3& v);
//     
//     /**
//      * Emitted when all movement of the camera element should stop.
//      */
//     void stopMovement();

};

};

#endif

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