SoAntiSquish.h

#ifndef COIN_SOANTISQUISH_H
#define COIN_SOANTISQUISH_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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 * this list of conditions and the following disclaimer.
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 * Redistributions in binary form must reproduce the above copyright
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
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\**************************************************************************/

#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoTransformation.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/SbMatrix.h>

class COIN_DLL_API SoAntiSquish : public SoTransformation {
  typedef SoTransformation inherited;

  SO_NODE_HEADER(SoAntiSquish);

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

  enum Sizing {
    X, Y, Z, AVERAGE_DIMENSION, BIGGEST_DIMENSION, SMALLEST_DIMENSION,
    LONGEST_DIAGONAL
  };

  SoSFEnum sizing;
  SoSFBool recalcAlways;

  void recalc(void);
  virtual void doAction(SoAction * action);

protected:
  virtual ~SoAntiSquish();

  virtual void callback(SoCallbackAction * action);
  virtual void GLRender(SoGLRenderAction * action);
  virtual void getBoundingBox(SoGetBoundingBoxAction * action);
  virtual void getMatrix(SoGetMatrixAction * action);
  virtual void pick(SoPickAction * action);

  SbMatrix getUnsquishingMatrix(const SbMatrix & squishedmatrix,
                                const SbBool calcinverse,
                                SbMatrix & getinverse);
private:
  SbMatrix unsquishedmatrix, inversematrix;
  SbBool matrixvalid, inversevalid;
};

#endif // !COIN_SOANTISQUISH_H