vtkView.h

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

  Program:   Visualization Toolkit
  Module:    vtkView.h

  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.

=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#ifndef vtkView_h
#define vtkView_h

#include "vtkViewsCoreModule.h" // For export macro
#include "vtkObject.h"

class vtkAlgorithmOutput;
class vtkCommand;
class vtkDataObject;
class vtkDataRepresentation;
class vtkSelection;
class vtkViewTheme;

class VTKVIEWSCORE_EXPORT vtkView : public vtkObject
{
public:
  static vtkView *New();
  vtkTypeMacro(vtkView, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void AddRepresentation(vtkDataRepresentation* rep);

  void SetRepresentation(vtkDataRepresentation* rep);

  vtkDataRepresentation* AddRepresentationFromInputConnection(vtkAlgorithmOutput* conn);

  vtkDataRepresentation* SetRepresentationFromInputConnection(vtkAlgorithmOutput* conn);

  vtkDataRepresentation* AddRepresentationFromInput(vtkDataObject* input);

  vtkDataRepresentation* SetRepresentationFromInput(vtkDataObject* input);

  void RemoveRepresentation(vtkDataRepresentation* rep);

  void RemoveRepresentation(vtkAlgorithmOutput* rep);

  void RemoveAllRepresentations();

  int GetNumberOfRepresentations();

  vtkDataRepresentation* GetRepresentation(int index = 0);

  bool IsRepresentationPresent(vtkDataRepresentation* rep);

  virtual void Update();

  virtual void ApplyViewTheme(vtkViewTheme* vtkNotUsed(theme)) { }

  vtkCommand* GetObserver();


  class ViewProgressEventCallData
  {
    const char* Message;
    double Progress;

  public:
    ViewProgressEventCallData(const char* msg, double progress)
    {
      this->Message = msg;
      this->Progress = progress;
    }
    ~ViewProgressEventCallData()
    {
      this->Message = nullptr;
    }

    const char* GetProgressMessage() const
      { return this->Message; }

    double GetProgress() const
      { return this->Progress; }
  };

  void RegisterProgress(vtkObject* algorithm, const char* message=nullptr);

  void UnRegisterProgress(vtkObject* algorithm);

protected:
  vtkView();
  ~vtkView() override;

  virtual void ProcessEvents(vtkObject* caller, unsigned long eventId,
    void* callData);

  virtual vtkDataRepresentation* CreateDefaultRepresentation(vtkAlgorithmOutput* conn);

  virtual void AddRepresentationInternal(vtkDataRepresentation* vtkNotUsed(rep)) {}
  virtual void RemoveRepresentationInternal(vtkDataRepresentation* vtkNotUsed(rep)) {}


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

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

  class vtkImplementation;
  vtkImplementation* Implementation;

  class Command;
  friend class Command;
  Command* Observer;

  class vtkInternal;
  vtkInternal* Internal;

};

#endif