vtkSMAnimationScene.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkSMAnimationScene_h
#define vtkSMAnimationScene_h

#include "vtkAnimationCue.h"
#include "vtkCommand.h"                 // needed for vtkCommand::UserEvent
#include "vtkRemotingAnimationModule.h" // needed for exports

class vtkCompositeAnimationPlayer;
class vtkEventForwarderCommand;
class vtkSMProxy;
class vtkSMViewProxy;

class VTKREMOTINGANIMATION_EXPORT vtkSMAnimationScene : public vtkAnimationCue
{
public:
  static vtkSMAnimationScene* New();
  vtkTypeMacro(vtkSMAnimationScene, vtkAnimationCue);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void AddCue(vtkAnimationCue* cue);
  void RemoveCue(vtkAnimationCue* cue);
  void RemoveAllCues();
  int GetNumberOfCues();


  void AddViewProxy(vtkSMViewProxy* proxy);
  void RemoveViewProxy(vtkSMViewProxy* proxy);
  void RemoveAllViewProxies();


  unsigned int GetNumberOfViewProxies();
  vtkSMViewProxy* GetViewProxy(unsigned int cc);


  void SetTimeKeeper(vtkSMProxy*);
  vtkGetObjectMacro(TimeKeeper, vtkSMProxy);


  vtkSetMacro(LockStartTime, bool);
  vtkGetMacro(LockStartTime, bool);
  vtkBooleanMacro(LockStartTime, bool);


  vtkSetMacro(LockEndTime, bool);
  vtkGetMacro(LockEndTime, bool);
  vtkBooleanMacro(LockEndTime, bool);


  void SetSceneTime(double time)
  {
    if (this->InTick)
    {
      // Since this method can be called during a Tick() event handler.
      return;
    }
    this->Initialize();
    this->Tick(time, 0, time);
  }

  // Get the time of the most recent tick.
  // The only difference between this and AnimationTime (or ClockTime) defined
  // in the superclass is that, unlike the latter this is defined even outside
  // AnimationCueTickEvent handlers.
  vtkGetMacro(SceneTime, double);


  vtkSetVector2Macro(PlaybackTimeWindow, double);
  vtkGetVector2Macro(PlaybackTimeWindow, double);

  void SanitizeFrameWindow(int frameWindow[2], double timeWindow[2]);


  void SetLoop(int val);
  int GetLoop();
  void Play();
  void Reverse();
  void Stop();
  void GoToNext();
  void GoToPrevious();
  void GoToFirst();
  void GoToLast();
  void SetPlayMode(int val);
  int GetPlayMode();
  void SetNumberOfFrames(int val);
  int GetNumberOfFrames();

  void SetFramesPerTimestep(int val);
  void SetStride(int val);
  int GetStride();
  bool GetInPlay();

  enum
  {
    // Fired whenever the vtkAnimationScene wants to request the
    // vtkSMAnimationSceneProxy to update the start/end times.
    // The calldata is a vtkVector2d with the suggested time-range.
    UpdateStartEndTimesEvent = vtkCommand::UserEvent
  };


  vtkSetMacro(ForceDisableCaching, bool);
  vtkGetMacro(ForceDisableCaching, bool);

  vtkSetMacro(OverrideStillRender, bool);
  vtkGetMacro(OverrideStillRender, bool);

protected:
  vtkSMAnimationScene();
  ~vtkSMAnimationScene() override;


  void StartCueInternal() override;
  void TickInternal(double currenttime, double deltatime, double clocktime) override;
  void EndCueInternal() override;


  void TimeKeeperTimeRangeChanged();
  void TimeKeeperTimestepsChanged();

  bool LockStartTime;
  bool LockEndTime;
  bool InTick;
  double SceneTime;
  double PlaybackTimeWindow[2];
  bool ForceDisableCaching;
  vtkSMProxy* TimeKeeper;
  vtkCompositeAnimationPlayer* AnimationPlayer;
  vtkEventForwarderCommand* Forwarder;

  bool OverrideStillRender;

private:
  vtkSMAnimationScene(const vtkSMAnimationScene&) = delete;
  void operator=(const vtkSMAnimationScene&) = delete;

  class vtkInternals;
  vtkInternals* Internals;
  unsigned long TimeRangeObserverID;
  unsigned long TimestepValuesObserverID;
};

#endif