dox/Interaction/Widgets/vtkResliceCursorRepresentation.h

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

  Program:   Visualization Toolkit
  Module:    vtkResliceCursorRepresentation.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 __vtkResliceCursorRepresentation_h
#define __vtkResliceCursorRepresentation_h

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

class vtkTextProperty;
class vtkActor2D;
class vtkTextMapper;
class vtkImageData;
class vtkImageReslice;
class vtkPlane;
class vtkPlaneSource;
class vtkResliceCursorPolyDataAlgorithm;
class vtkResliceCursor;
class vtkMatrix4x4;
class vtkScalarsToColors;
class vtkImageMapToColors;
class vtkActor;
class vtkImageActor;
class vtkTexture;
class vtkTextActor;
class vtkImageAlgorithm;

class VTKINTERACTIONWIDGETS_EXPORT vtkResliceCursorRepresentation : public vtkWidgetRepresentation
{
public:

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


  vtkSetClampMacro(Tolerance,int,1,100);
  vtkGetMacro(Tolerance,int);


  vtkSetMacro( ShowReslicedImage, int );
  vtkGetMacro( ShowReslicedImage, int );
  vtkBooleanMacro( ShowReslicedImage, int );


  vtkSetMacro(RestrictPlaneToVolume,int);
  vtkGetMacro(RestrictPlaneToVolume,int);
  vtkBooleanMacro(RestrictPlaneToVolume,int);


  vtkSetStringMacro(ThicknessLabelFormat);
  vtkGetStringMacro(ThicknessLabelFormat);

//BTX -- used to communicate about the state of the representation
  enum { Outside=0, NearCenter, NearAxis1, NearAxis2,
         OnCenter, OnAxis1, OnAxis2};
  enum { None=0, PanAndRotate, RotateBothAxes,
         ResizeThickness, WindowLevelling };
//ETX

  virtual char* GetThicknessLabelText();


  virtual double* GetThicknessLabelPosition();
  virtual void GetThicknessLabelPosition(double pos[3]);
  virtual void GetWorldThicknessLabelPosition(double pos[3]);

  virtual void BuildRepresentation();


  vtkGetObjectMacro( ResliceAxes, vtkMatrix4x4 );
  vtkGetObjectMacro( Reslice, vtkImageAlgorithm );


  vtkGetObjectMacro( ImageActor, vtkImageActor );


  virtual void SetLookupTable(vtkScalarsToColors*);
  vtkGetObjectMacro(LookupTable,vtkScalarsToColors);


  vtkGetObjectMacro(ColorMap, vtkImageMapToColors);
  virtual void SetColorMap(vtkImageMapToColors *);


  void SetWindowLevel(double window, double level, int copy = 0);
  void GetWindowLevel(double wl[2]);
  double GetWindow(){return this->CurrentWindow;}
  double GetLevel(){return this->CurrentLevel;}

  virtual vtkResliceCursor * GetResliceCursor() = 0;


  vtkSetMacro(DisplayText,int);
  vtkGetMacro(DisplayText,int);
  vtkBooleanMacro(DisplayText,int);


  void SetTextProperty(vtkTextProperty* tprop);
  vtkTextProperty* GetTextProperty();


  vtkSetMacro( UseImageActor, int );
  vtkGetMacro( UseImageActor, int );
  vtkBooleanMacro( UseImageActor, int );


  void SetManipulationMode( int m );
  vtkGetMacro(ManipulationMode, int);


  void ActivateText(int);
  void ManageTextDisplay();


  virtual void InitializeReslicePlane();
  virtual void ResetCamera();

  virtual vtkResliceCursorPolyDataAlgorithm * GetCursorAlgorithm() = 0;


  vtkGetObjectMacro( PlaneSource, vtkPlaneSource );

protected:
  vtkResliceCursorRepresentation();
  ~vtkResliceCursorRepresentation();


  virtual void CreateDefaultResliceAlgorithm();
  virtual void SetResliceParameters(
      double outputSpacingX, double outputSpacingY,
      int extentX, int extentY );

  virtual void WindowLevel( double x, double y );

  virtual void UpdateReslicePlane();

  virtual void ComputeReslicePlaneOrigin();

  // for negative window values.
  void InvertTable();

  // recompute origin to make the location of the reslice cursor consistent
  // with its physical location
  virtual void ComputeOrigin( vtkMatrix4x4 * );

  void GetVector1( double d[3] );
  void GetVector2( double d[3] );

  int ManipulationMode;

  // Keep track if modifier is set
  int Modifier;

  // Selection tolerance for the handles
  int Tolerance;

  // Format for printing the distance
  char *ThicknessLabelFormat;

  vtkImageAlgorithm       * Reslice;
  vtkPlaneSource          * PlaneSource;
  int                       RestrictPlaneToVolume;
  int                       ShowReslicedImage;
  vtkTextProperty         * ThicknessTextProperty;
  vtkTextMapper           * ThicknessTextMapper;
  vtkActor2D              * ThicknessTextActor;
  vtkMatrix4x4            * ResliceAxes;
  vtkMatrix4x4            * NewResliceAxes;
  vtkImageMapToColors     * ColorMap;
  vtkActor                * TexturePlaneActor;
  vtkTexture              * Texture;
  vtkScalarsToColors      * LookupTable;
  vtkImageActor           * ImageActor;
  vtkTextActor            * TextActor;
  double                    OriginalWindow;
  double                    OriginalLevel;
  double                    CurrentWindow;
  double                    CurrentLevel;
  double                    InitialWindow;
  double                    InitialLevel;
  double                    LastEventPosition[2];
  int                       UseImageActor;
  char                      TextBuff[128];
  int                       DisplayText;

  vtkScalarsToColors      * CreateDefaultLookupTable();
  void                      GenerateText();

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

#endif