#ifndef COIN_SOSCXMLDOLLYTARGET_H
#define COIN_SOSCXMLDOLLYTARGET_H



#include <Inventor/navigation/SoScXMLNavigationTarget.h>

class SoCamera;
class SoPerspectiveCamera;
class SoOrthographicCamera;
class SoFrustumCamera;

#define COIN_NAVIGATION_DOLLY_TARGET_EVENT_PREFIX SOSCXML_NAVIGATION_TARGETTYPE ".Dolly"

class COIN_DLL_API SoScXMLDollyTarget : public SoScXMLNavigationTarget {
  typedef SoScXMLNavigationTarget inherited;
  SCXML_OBJECT_HEADER(SoScXMLDollyTarget)

public:
  static void initClass(void);
  static void cleanClass(void);

  static SoScXMLDollyTarget * constructSingleton(void);
  static void destructSingleton(void);
  static SoScXMLDollyTarget * singleton(void);

  // the named events
  static const SbName & BEGIN(void);
  static const SbName & UPDATE(void);
  static const SbName & END(void);
  static const SbName & JUMP(void);
  static const SbName & STEP_IN(void);
  static const SbName & STEP_OUT(void);

  static void dolly(SoCamera * camera, float diff);
  static void jump(SoCamera * camera, float focaldistance);
  static void step(SoCamera * camera, SbBool exponential, float diff, float min = 0.0f, float max = 0.0f);

protected:
  SoScXMLDollyTarget(void);
  virtual ~SoScXMLDollyTarget(void);

  virtual SbBool processOneEvent(const ScXMLEvent * event);

private:
  class PImpl;
  static SoScXMLDollyTarget * theSingleton;

}; // SoScXMLDollyTarget

#endif // !COIN_SOSCXMLDOLLYTARGET_H
