vtkAngleRepresentation.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkAngleRepresentation.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 vtkAngleRepresentation_h
#define vtkAngleRepresentation_h
 
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkWidgetRepresentation.h"
 
class vtkHandleRepresentation;
 
 
class VTKINTERACTIONWIDGETS_EXPORT vtkAngleRepresentation : public vtkWidgetRepresentation
{
public:
 
  vtkTypeMacro(vtkAngleRepresentation,vtkWidgetRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);
 
  virtual double GetAngle() = 0;
 
 
  virtual void GetPoint1WorldPosition(double pos[3]) = 0;
  virtual void GetCenterWorldPosition(double pos[3]) = 0;
  virtual void GetPoint2WorldPosition(double pos[3]) = 0;
  virtual void SetPoint1DisplayPosition(double pos[3]) = 0;
  virtual void SetCenterDisplayPosition(double pos[3]) = 0;
  virtual void SetPoint2DisplayPosition(double pos[3]) = 0;
  virtual void GetPoint1DisplayPosition(double pos[3]) = 0;
  virtual void GetCenterDisplayPosition(double pos[3]) = 0;
  virtual void GetPoint2DisplayPosition(double pos[3]) = 0;
 
 
  void SetHandleRepresentation(vtkHandleRepresentation *handle);
  void InstantiateHandleRepresentation();
 
 
  vtkGetObjectMacro(Point1Representation,vtkHandleRepresentation);
  vtkGetObjectMacro(CenterRepresentation,vtkHandleRepresentation);
  vtkGetObjectMacro(Point2Representation,vtkHandleRepresentation);
 
 
  vtkSetClampMacro(Tolerance,int,1,100);
  vtkGetMacro(Tolerance,int);
 
 
  vtkSetStringMacro(LabelFormat);
  vtkGetStringMacro(LabelFormat);
 
 
  vtkSetMacro(Ray1Visibility,int);
  vtkGetMacro(Ray1Visibility,int);
  vtkBooleanMacro(Ray1Visibility,int);
  vtkSetMacro(Ray2Visibility,int);
  vtkGetMacro(Ray2Visibility,int);
  vtkBooleanMacro(Ray2Visibility,int);
  vtkSetMacro(ArcVisibility,int);
  vtkGetMacro(ArcVisibility,int);
  vtkBooleanMacro(ArcVisibility,int);
 
//BTX -- used to communicate about the state of the representation
  enum {Outside=0,NearP1,NearCenter,NearP2};
//ETX
 
 
  virtual void BuildRepresentation();
  virtual int ComputeInteractionState(int X, int Y, int modify=0);
  virtual void StartWidgetInteraction(double e[2]);
  virtual void CenterWidgetInteraction(double e[2]);
  virtual void WidgetInteraction(double e[2]);
 
protected:
  vtkAngleRepresentation();
  ~vtkAngleRepresentation();
 
  // The handle and the rep used to close the handles
  vtkHandleRepresentation *HandleRepresentation;
  vtkHandleRepresentation *Point1Representation;
  vtkHandleRepresentation *CenterRepresentation;
  vtkHandleRepresentation *Point2Representation;
 
  // Selection tolerance for the handles
  int Tolerance;
 
  // Visibility of the various pieces of the representation
  int Ray1Visibility;
  int Ray2Visibility;
  int ArcVisibility;
 
  // Format for the label
  char *LabelFormat;
 
private:
  vtkAngleRepresentation(const vtkAngleRepresentation&);  //Not implemented
  void operator=(const vtkAngleRepresentation&);  //Not implemented
};
 
#endif