// @configure_input@

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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\**************************************************************************/

#ifndef SO@GUI@_CONSTRAINEDVIEWER_H
#define SO@GUI@_CONSTRAINEDVIEWER_H

#include <Inventor/@Gui@/viewers/So@Gui@FullViewer.h>

// ************************************************************************

class SO@GUI@_DLL_API So@Gui@ConstrainedViewer : public So@Gui@FullViewer {
  SO@GUI@_OBJECT_ABSTRACT_HEADER(So@Gui@ConstrainedViewer, So@Gui@FullViewer);

public:
  void setUpDirection(const SbVec3f & dir);
  const SbVec3f & getUpDirection(void) const;

  virtual void setCamera(SoCamera * newcam);
  virtual void saveHomePosition(void);
  virtual void resetToHomePosition(void);

protected:
  So@Gui@ConstrainedViewer(@WIDGET@ parent,
                           const char * const name,
                           SbBool embed,
                           So@Gui@FullViewer::BuildFlag flag, 
                           So@Gui@Viewer::Type type, 
                           SbBool build);

  ~So@Gui@ConstrainedViewer();

  virtual void tiltCamera(float delta);
  virtual void bottomWheelMotion(float value);
  virtual void leftWheelMotion(float value);

  virtual void changeCameraValues(SoCamera * camera);
  void findUpDirection(SbVec2s mouselocation);
  void checkForCameraUpConstrain(void);

private:
  class So@Gui@ConstrainedViewerP * pimpl;
};

// ************************************************************************

#endif // ! SO@GUI@_CONSTRAINEDVIEWER_H
