SmEventHandler.h

#ifndef SMALLCHANGE_SMEVENTHANDLER_H
#define SMALLCHANGE_SMEVENTHANDLER_H
 
/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * this list of conditions and the following disclaimer.
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 * notice, this list of conditions and the following disclaimer in the
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 * this software without specific prior written permission.
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#include <Inventor/SbViewportRegion.h>
#include <SmallChange/nodekits/SmCameraControlKit.h>
#include <SmallChange/basic.h>
#include <Inventor/SbVec2s.h>
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoNode.h>
 
class SoHandleEventAction;
class SoCamera;
class SoSensor;
class SoTimerSensor;
class SbVec3f;
class SoGLRenderAction;
 
class SMALLCHANGE_DLL_API SmEventHandler : public SoNode {
  typedef SoNode inherited;
 
  SO_NODE_ABSTRACT_HEADER(SmEventHandler);  
 
public:
  static void initClass(void);
  
  // FIXME: get rid of this method, pederb 2003-09-30
  void setCameraControlKit(SmCameraControlKit * kit);
  void setViewportRegion(const SbViewportRegion & vp);
  const SbViewportRegion & getViewportRegion(void) const;
  float getGLAspectRatio(void) const;
  SbVec2s getGLSize(void) const;
 
  virtual void preRender(SoGLRenderAction * action);
  virtual void pulse(void);
  virtual SbBool isAnimating(void);
  virtual void resetCameraFocalDistance(const SbViewportRegion & vpr);
  void enablePulse(const SbBool onoff);
 
protected:
  SmEventHandler(void);
  virtual ~SmEventHandler();
 
  SbVec3f getViewUp(void) const;
 
  SbBool isAnimationEnabled(void) const;
  void interactiveCountInc(void);
  void interactiveCountDec(void);
 
  SoCamera * getCamera(void);
 
  void yawCamera(const float rad);
  void rollCamera(const float rad);
  void pitchCamera(const float rad);
 
  SmCameraControlKit * kit;
  SoTimerSensor * pulser;
 
private:
  static void pulse_cb(void * closure, SoSensor * s);
  
  SbBool pulseenabled;
  int intcnt;
  SbViewportRegion vp;
};
 
#endif // SMALLCHANGE_SMEVENTHANDLER_H