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Coin / src / navigation / SoCameraUtils.h

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#ifndef COIN_SOCAMERAUTILS_H
#define COIN_SOCAMERAUTILS_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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#include <Inventor/SbBasic.h>

class SoCamera;
class SbVec3f;

class SoCameraManager {
public:
  static SoCameraManager * createFor(SoCamera * camera);

  virtual ~SoCameraManager(void);

  virtual void setZoomLimits(float minzoomvalue = 0.0f, float maxzoomvalue = 0.0f);
  virtual SbBool getZoomLimits(float & minzoomvalue, float & maxzoomvalue) const;

  virtual void setZoomValue(float zoomvalue, SbBool limit = FALSE) = 0;
  virtual void adjustZoomValue(float diffvalue, SbBool limit = TRUE) = 0; // diffvalue=0.0 is identity
  virtual void adjustZoom(float factor, SbBool limit = TRUE) = 0; // factor=1.0 is identity

  virtual float getZoomValue(void) const;

  virtual void setZoomByDollyLimits(float mindollydistance = 0.0f, float maxdollydistance = 0.0f, float unitydistance = 0.0f);
  virtual SbBool getZoomByDollyLimits(float & mindollydistance, float & maxdollydistance, float & unitydistance) const;

  virtual void setZoomValueByDolly(float zoomvalue, SbBool limit = FALSE) = 0;
  virtual void adjustZoomByDollyDistance(float distance, SbBool limit = TRUE) = 0; // distance=0.0 is identity
  virtual void adjustZoomByDolly(float factor, SbBool limit = TRUE) = 0; // factor=1.0 is identity

  virtual float getZoomByDollyValue(void) const;

  SoCamera * getCamera(void) const { return this->camera; }
  SbVec3f getFocalPoint(void) const;

  virtual void copyLimits(const SoCameraManager * other);

protected:
  SoCameraManager(SoCamera * camera);

  SbBool havezoomlimits;
  float minzoom, maxzoom;
  SbBool havezoombydollylimits;
  float mindollydistance, maxdollydistance, unitydistance;

private:
  SoCamera * camera;

}; // SoCameraManager

#endif // !COIN_SOCAMERAUTILS_H