vtkCaptionActor2D.h

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

  Program:   Visualization Toolkit
  Module:    vtkCaptionActor2D.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 vtkCaptionActor2D_h
#define vtkCaptionActor2D_h

#include "vtkRenderingAnnotationModule.h" // For export macro
#include "vtkActor2D.h"

class vtkActor;
class vtkAlgorithmOutput;
class vtkAppendPolyData;
class vtkCaptionActor2DConnection;
class vtkGlyph2D;
class vtkGlyph3D;
class vtkPolyData;
class vtkPolyDataMapper2D;
class vtkPolyDataMapper;
class vtkTextActor;
class vtkTextMapper;
class vtkTextProperty;

class VTKRENDERINGANNOTATION_EXPORT vtkCaptionActor2D : public vtkActor2D
{
public:
  vtkTypeMacro(vtkCaptionActor2D,vtkActor2D);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkCaptionActor2D *New();


  virtual void SetCaption(const char* caption);
  virtual char* GetCaption();


  vtkWorldCoordinateMacro(AttachmentPoint);


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


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


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


  virtual void SetLeaderGlyphData(vtkPolyData*);
  virtual void SetLeaderGlyphConnection(vtkAlgorithmOutput*);
  virtual vtkPolyData* GetLeaderGlyph();


  vtkSetClampMacro(LeaderGlyphSize,double,0.0,0.1);
  vtkGetMacro(LeaderGlyphSize,double);


  vtkSetClampMacro(MaximumLeaderGlyphSize,int,1,1000);
  vtkGetMacro(MaximumLeaderGlyphSize,int);


  vtkSetClampMacro(Padding, int, 0, 50);
  vtkGetMacro(Padding, int);


  vtkGetObjectMacro(TextActor,vtkTextActor);


  virtual void SetCaptionTextProperty(vtkTextProperty *p);
  vtkGetObjectMacro(CaptionTextProperty,vtkTextProperty);

  void ShallowCopy(vtkProp *prop);


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

  virtual void ReleaseGraphicsResources(vtkWindow *);


  int RenderOpaqueGeometry(vtkViewport* viewport);
  virtual int RenderTranslucentPolygonalGeometry(vtkViewport* ) {return 0;}
  int RenderOverlay(vtkViewport* viewport);

  virtual int HasTranslucentPolygonalGeometry();

protected:
  vtkCaptionActor2D();
  ~vtkCaptionActor2D();

  vtkCoordinate *AttachmentPointCoordinate;

  int   Border;
  int   Leader;
  int   ThreeDimensionalLeader;
  double LeaderGlyphSize;
  int   MaximumLeaderGlyphSize;

  int   Padding;
  int   AttachEdgeOnly;


private:
  vtkTextActor        *TextActor;
  vtkTextProperty     *CaptionTextProperty;

  vtkPolyData         *BorderPolyData;
  vtkPolyDataMapper2D *BorderMapper;
  vtkActor2D          *BorderActor;

  vtkPolyData         *HeadPolyData;    // single attachment point for glyphing
  vtkGlyph3D          *HeadGlyph;       // for 3D leader
  vtkPolyData         *LeaderPolyData;  // line represents the leader
  vtkAppendPolyData   *AppendLeader;    // append head and leader

  // for 2D leader
  vtkCoordinate       *MapperCoordinate2D;
  vtkPolyDataMapper2D *LeaderMapper2D;
  vtkActor2D          *LeaderActor2D;

  // for 3D leader
  vtkPolyDataMapper   *LeaderMapper3D;
  vtkActor            *LeaderActor3D;

  vtkCaptionActor2DConnection* LeaderGlyphConnectionHolder;

private:
  vtkCaptionActor2D(const vtkCaptionActor2D&) VTK_DELETE_FUNCTION;
  void operator=(const vtkCaptionActor2D&) VTK_DELETE_FUNCTION;
};


#endif