dox/Common/vtkAnimationCue.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkAnimationCue.h,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkAnimationCue_h
#define __vtkAnimationCue_h

#include "vtkObject.h"

class VTK_COMMON_EXPORT vtkAnimationCue: public vtkObject
{
public:
  vtkTypeRevisionMacro(vtkAnimationCue,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkAnimationCue* New();

  //BTX
  // Structure passed on every event invocation.
  // Depending upon the cue time mode, these times are either
  // normalized [0,1] or relative to the scene that contains the cue.
  // All this information is also available by asking the cue
  // directly for it within the handler. Thus, this information can 
  // be accessed in wrapped languages.
  class AnimationCueInfo
    {
  public:
    double StartTime;
    double EndTime;
    double AnimationTime;// valid only in AnimationCueTickEvent handler
    double DeltaTime;   // valid only in AnimationCueTickEvent handler
    double ClockTime;   // valid only in AnimationCueTickEvent handler
    };
  //ETX
  

  virtual void SetTimeMode(int mode);
  vtkGetMacro(TimeMode, int);
  void SetTimeModeToRelative() 
    { this->SetTimeMode(TIMEMODE_RELATIVE); }
  void SetTimeModeToNormalized() 
    { this->SetTimeMode(TIMEMODE_NORMALIZED); }


  vtkSetMacro(StartTime, double);
  vtkGetMacro(StartTime, double);


  vtkSetMacro(EndTime, double);
  vtkGetMacro(EndTime, double);
 
  virtual void Tick(double currenttime, double deltatime, double clocktime);

  virtual void Initialize();

  virtual void Finalize();


  vtkGetMacro(AnimationTime, double);


  vtkGetMacro(DeltaTime, double);


  vtkGetMacro(ClockTime, double);

//BTX
  enum TimeCodes
  {
    TIMEMODE_NORMALIZED=0,
    TIMEMODE_RELATIVE=1
  };
//ETX
protected:
  vtkAnimationCue();
  ~vtkAnimationCue();
//BTX
  enum {
    UNINITIALIZED=0,
    INACTIVE,
    ACTIVE
  };
//ETX
  double StartTime;
  double EndTime;
  int TimeMode;

  // These are set when the AnimationCueTickEvent event 
  // is fired. Thus giving access to the information in
  // the AnimationCueInfo struct in wrapped languages.
  double AnimationTime;
  double DeltaTime;
  double ClockTime;
  
  int CueState;


  virtual void StartCueInternal();
  virtual void TickInternal(double currenttime, double deltatime,
    double clocktime);
  virtual void EndCueInternal();
 
private:
  vtkAnimationCue(const vtkAnimationCue&);  // Not implemented.
  void operator=(const vtkAnimationCue&);  // Not implemented.
};

#endif

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