dox/Widgets/vtkCheckerboardRepresentation.h

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

  Program:   Visualization Toolkit
  Module:    vtkCheckerboardRepresentation.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.

=========================================================================*/
#ifndef __vtkCheckerboardRepresentation_h
#define __vtkCheckerboardRepresentation_h

#include "vtkWidgetRepresentation.h"

class vtkImageCheckerboard;
class vtkImageActor;
class vtkSliderRepresentation3D;


class VTK_WIDGETS_EXPORT vtkCheckerboardRepresentation : public vtkWidgetRepresentation
{
public:
  static vtkCheckerboardRepresentation *New();


  vtkTypeMacro(vtkCheckerboardRepresentation,vtkWidgetRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetCheckerboard(vtkImageCheckerboard *chkrbrd);
  vtkGetObjectMacro(Checkerboard,vtkImageCheckerboard);


  void SetImageActor(vtkImageActor *imageActor);
  vtkGetObjectMacro(ImageActor,vtkImageActor);
  

  vtkSetClampMacro(CornerOffset,double,0.0,0.4);
  vtkGetMacro(CornerOffset,double);

//BTX
  enum {
    TopSlider=0,
    RightSlider,
    BottomSlider,
    LeftSlider
  };
//ETX

  void SliderValueChanged(int sliderNum);


  void SetTopRepresentation(vtkSliderRepresentation3D*);
  void SetRightRepresentation(vtkSliderRepresentation3D*);
  void SetBottomRepresentation(vtkSliderRepresentation3D*);
  void SetLeftRepresentation(vtkSliderRepresentation3D*);
  vtkGetObjectMacro(TopRepresentation,vtkSliderRepresentation3D);
  vtkGetObjectMacro(RightRepresentation,vtkSliderRepresentation3D);
  vtkGetObjectMacro(BottomRepresentation,vtkSliderRepresentation3D);
  vtkGetObjectMacro(LeftRepresentation,vtkSliderRepresentation3D);


  virtual void BuildRepresentation();
  virtual void GetActors(vtkPropCollection*);
  virtual void ReleaseGraphicsResources(vtkWindow *w);
  virtual int RenderOverlay(vtkViewport *viewport);
  virtual int RenderOpaqueGeometry(vtkViewport *viewport);
  virtual int RenderTranslucentPolygonalGeometry(vtkViewport *viewport);
  virtual int HasTranslucentPolygonalGeometry();
  
protected:
  vtkCheckerboardRepresentation();
  ~vtkCheckerboardRepresentation();

  // Instances that this class manipulates
  vtkImageCheckerboard *Checkerboard;
  vtkImageActor        *ImageActor;

  // The internal widgets for each side
  vtkSliderRepresentation3D *TopRepresentation;
  vtkSliderRepresentation3D *RightRepresentation;
  vtkSliderRepresentation3D *BottomRepresentation;
  vtkSliderRepresentation3D *LeftRepresentation;

  // The corner offset
  double CornerOffset;

  // Direction index of image actor's plane normal
  int OrthoAxis;

private:
  vtkCheckerboardRepresentation(const vtkCheckerboardRepresentation&);  //Not implemented
  void operator=(const vtkCheckerboardRepresentation&);  //Not implemented
};

#endif

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