vtkCaptionRepresentation.h

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

  Program:   Visualization Toolkit
  Module:    vtkCaptionRepresentation.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 vtkCaptionRepresentation_h
#define vtkCaptionRepresentation_h

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

class vtkRenderer;
class vtkCaptionActor2D;
class vtkConeSource;
class vtkPointHandleRepresentation3D;


class VTKINTERACTIONWIDGETS_EXPORT vtkCaptionRepresentation : public vtkBorderRepresentation
{
public:
  static vtkCaptionRepresentation *New();


  vtkTypeMacro(vtkCaptionRepresentation,vtkBorderRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetAnchorPosition(double pos[3]);
  void GetAnchorPosition(double pos[3]);


  void SetCaptionActor2D(vtkCaptionActor2D *captionActor);
  vtkGetObjectMacro(CaptionActor2D,vtkCaptionActor2D);


  void SetAnchorRepresentation(vtkPointHandleRepresentation3D*);
  vtkGetObjectMacro(AnchorRepresentation,vtkPointHandleRepresentation3D);

  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();


  vtkSetClampMacro(FontFactor, double, 0.1, 10.0);
  vtkGetMacro(FontFactor, double);

protected:
  vtkCaptionRepresentation();
  ~vtkCaptionRepresentation();

  // the text to manage
  vtkCaptionActor2D *CaptionActor2D;
  vtkConeSource     *CaptionGlyph;

  int PointWidgetState;
  int DisplayAttachmentPoint[2];
  double FontFactor;

  // Internal representation for the anchor
  vtkPointHandleRepresentation3D *AnchorRepresentation;

  // Check and adjust boundaries according to the size of the caption text
  virtual void AdjustCaptionBoundary();

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

#endif