mtsOSGCameraTask.h

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/*

  Author(s): Simon Leonard
  Created on: Dec 02 2009

  (C) Copyright 2009 Johns Hopkins University (JHU), All Rights
  Reserved.

--- begin cisst license - do not edit ---

This software is provided "as is" under an open source license, with
no warranty.  The complete license can be found in license.txt and
http://www.cisst.org/cisst/license.txt.

--- end cisst license ---
*/


#ifndef _mtsOSGCamera_h
#define _mtsOSGCamera_h

#include <cisstMultiTask/mtsTaskContinuous.h>
#include <cisstMultiTask/mtsInterfaceRequired.h>

#include <sawOpenSceneGraph/osaOSGCamera.h>
#include <sawOpenSceneGraph/sawOpenSceneGraphExport.h>

class CISST_EXPORT mtsOSGCameraTask : public mtsTaskContinuous{

  friend class osaOSGHUD;
  
 protected:

  osg::ref_ptr<osaOSGCamera> camera;

 private:

  mtsInterfaceRequired* input;
  mtsFunctionRead GetPosition;



  class Data : public osg::Referenced {
  private:
    mtsOSGCameraTask* mtsCamera;
  public:
    Data( mtsOSGCameraTask* camera ) : mtsCamera( camera ){}
    mtsOSGCameraTask* GetCameraTask() { return mtsCamera; }
  };



  class UpdateCallback : public osg::NodeCallback {

    void operator()( osg::Node* node, osg::NodeVisitor* );
  };

  virtual void UpdateTransform();

 public:
  
  // Main constructor
  mtsOSGCameraTask( const std::string& name, osaOSGCamera* camera );


  void setCullMask( osg::Node::NodeMask mask );

  ~mtsOSGCameraTask(){}

  void Startup();
  void Run();
  void Cleanup();

  inline osg::ref_ptr<osaOSGCamera> GetCamera(void) 
  { return camera; }

  void addEventHandler( osgGA::GUIEventHandler *eventHandler )
  { camera->addEventHandler( eventHandler ); }

};

#endif