/**************************************************************************\
 *
 *  This file is part of the Coin 3D visualization library.
 *  Copyright (C) 1998-2002 by Systems in Motion. All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  version 2.1 as published by the Free Software Foundation. See the
 *  file LICENSE.LGPL at the root directory of the distribution for
 *  more details.
 *
 *  If you want to use Coin for applications not compatible with the
 *  LGPL, please contact SIM to acquire a Professional Edition license.
 *
 *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
 *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
 *
\**************************************************************************/

#ifndef COIN_SOEVENT_H
#define COIN_SOEVENT_H

#include <Inventor/SoType.h>
#include <Inventor/SbVec2s.h>
#include <Inventor/SbTime.h>

class SbViewportRegion;
class SbVec2f;


class COIN_DLL_API SoEvent {

public:
  SoEvent(void);
  virtual ~SoEvent();

  SbBool isOfType(SoType type) const;
  static SoType getClassTypeId(void);
  virtual SoType getTypeId(void) const;

  void setTime(const SbTime t);
  SbTime getTime(void) const;

  void setPosition(const SbVec2s & p);
  const SbVec2s & getPosition(void) const;
  const SbVec2s getPosition(const SbViewportRegion & vpRgn) const;
  const SbVec2f getNormalizedPosition(const SbViewportRegion & vpRgn) const;

  void setShiftDown(SbBool isDown);
  SbBool wasShiftDown(void) const;
  void setCtrlDown(SbBool isDown);
  SbBool wasCtrlDown(void) const;
  void setAltDown(SbBool isDown);
  SbBool wasAltDown(void) const;

  static void initClass(void);

private:
  static SoType classTypeId;

  SbTime timeofevent;
  SbVec2s positionofevent;

  static void initEvents(void);

  struct {
    unsigned int shiftdown : 1;
    unsigned int ctrldown  : 1;
    unsigned int altdown   : 1;
  } modifiers;
};

#endif // !COIN_SOEVENT_H
