vtkTextRepresentation.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkTextRepresentation.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 vtkTextRepresentation_h
#define vtkTextRepresentation_h
 
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkBorderRepresentation.h"
 
class vtkRenderer;
class vtkTextActor;
class vtkTextProperty;
class vtkTextRepresentationObserver;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkTextRepresentation : public vtkBorderRepresentation
{
public:
  static vtkTextRepresentation *New();
 
 
  vtkTypeMacro(vtkTextRepresentation,vtkBorderRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);
 
 
  void SetTextActor(vtkTextActor *textActor);
  vtkGetObjectMacro(TextActor,vtkTextActor);
 
 
  void SetText(const char* text);
  const char* GetText();
 
 
  virtual void BuildRepresentation();
  virtual void GetSize(double size[2])
    {size[0]=2.0; size[1]=2.0;}
 
 
  virtual void GetActors2D(vtkPropCollection*);
  virtual void ReleaseGraphicsResources(vtkWindow*);
  virtual int RenderOverlay(vtkViewport*);
  virtual int RenderOpaqueGeometry(vtkViewport*);
  virtual int RenderTranslucentPolygonalGeometry(vtkViewport*);
  virtual int HasTranslucentPolygonalGeometry();
 
  //BTX
  enum
    {
    AnyLocation = 0,
    LowerLeftCorner,
    LowerRightCorner,
    LowerCenter,
    UpperLeftCorner,
    UpperRightCorner,
    UpperCenter
    };
  //ETX
 
 
  virtual void SetWindowLocation(int enumLocation);
  vtkGetMacro(WindowLocation, int);
 
 
  virtual void SetPosition(double x, double y);
  virtual void SetPosition(double pos[2])
    { this->SetPosition(pos[0], pos[1]);};
 
 
  void ExecuteTextPropertyModifiedEvent(vtkObject* obj, unsigned long enumEvent, void* p);
  void ExecuteTextActorModifiedEvent(vtkObject* obj, unsigned long enumEvent, void* p);
 
protected:
  vtkTextRepresentation();
  ~vtkTextRepresentation();
 
  // Initialize text actor
  virtual void InitializeTextActor();
 
  // Check and adjust boundaries according to the size of the text
  virtual void CheckTextBoundary();
 
  // the text to manage
  vtkTextActor  *TextActor;
  vtkTextProperty *TextProperty;
 
  // Window location by enumeration
  int WindowLocation;
  virtual void UpdateWindowLocation();
 
  // observer to observe internal TextActor and TextProperty
  vtkTextRepresentationObserver *Observer;
 
private:
  vtkTextRepresentation(const vtkTextRepresentation&);  //Not implemented
  void operator=(const vtkTextRepresentation&);  //Not implemented
};
 
#endif