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

  Program:   Visualization Toolkit
  Module:    vtkProgressBarRepresentation.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.

=========================================================================*/
/**
 * @class   vtkProgressBarRepresentation
 * @brief   represent a vtkProgressBarWidget
 *
 * This class is used to represent a vtkProgressBarWidget.
 *
 * @sa
 * vtkProgressBarWidget
*/

#ifndef vtkProgressBarRepresentation_h
#define vtkProgressBarRepresentation_h

#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkBorderRepresentation.h"

class vtkActor2D;
class vtkPoints;
class vtkPolyData;
class vtkProperty2D;
class vtkUnsignedCharArray;

class VTKINTERACTIONWIDGETS_EXPORT vtkProgressBarRepresentation : public vtkBorderRepresentation
{
public:
  /**
   * Instantiate this class.
   */
  static vtkProgressBarRepresentation *New();

  //@{
  /**
   * Standard VTK class methods.
   */
  vtkTypeMacro(vtkProgressBarRepresentation, vtkBorderRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);
  //@}

  //@{
  /**
   * By obtaining this property you can specify the properties of the
   * representation.
   */
  vtkGetObjectMacro(Property, vtkProperty2D);
  //@}

  //@{
  /**
   * Set/Get the progress rate of the progress bar, between 0 and 1
   * default is 0
   */
  vtkSetClampMacro(ProgressRate, double, 0, 1);
  vtkGetMacro(ProgressRate, double);
  //@}

  //@{
  /**
   * Set/Get the progress bar color
   * Default is pure green
   */
  vtkSetVector3Macro(ProgressBarColor, double);
  vtkGetVector3Macro(ProgressBarColor, double);
  //@}

  //@{
  /**
   * Set/Get the background color
   * Default is white
   */
  vtkSetVector3Macro(BackgroundColor, double);
  vtkGetVector3Macro(BackgroundColor, double);
  //@}

  //@{
  /**
   * Set/Get background visibility
   * Default is off
   */
  vtkSetMacro(DrawBackground, bool);
  vtkGetMacro(DrawBackground, bool);
  vtkBooleanMacro(DrawBackground, bool);
  //@}

  //@{
  /**
   * Satisfy the superclasses' API.
   */
  virtual void BuildRepresentation();
  virtual void GetSize(double size[2]);
  //@}

  //@{
  /**
   * These methods are necessary to make this representation behave as
   * a vtkProp.
   */
  virtual void GetActors2D(vtkPropCollection*);
  virtual void ReleaseGraphicsResources(vtkWindow*);
  virtual int RenderOverlay(vtkViewport*);
  virtual int RenderOpaqueGeometry(vtkViewport*);
  virtual int RenderTranslucentPolygonalGeometry(vtkViewport*);
  virtual int HasTranslucentPolygonalGeometry();
  //@}

protected:
  vtkProgressBarRepresentation();
  ~vtkProgressBarRepresentation();

  double ProgressRate;
  double ProgressBarColor[3];
  double BackgroundColor[3];
  bool DrawBackground;

  vtkPoints      *Points;
  vtkUnsignedCharArray  *BackgroundData;
  vtkUnsignedCharArray  *ProgressBarData;
  vtkProperty2D  *Property;
  vtkActor2D     *Actor;
  vtkActor2D     *BackgroundActor;

private:
  vtkProgressBarRepresentation(const vtkProgressBarRepresentation&) VTK_DELETE_FUNCTION;
  void operator=(const vtkProgressBarRepresentation&) VTK_DELETE_FUNCTION;
};

#endif