vtkGraphMapper.h

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

  Program:   Visualization Toolkit
  Module:    vtkGraphMapper.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.

=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#ifndef vtkGraphMapper_h
#define vtkGraphMapper_h

#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkMapper.h"

#include "vtkSmartPointer.h"    // Required for smart pointer internal ivars.

class vtkActor2D;
class vtkMapArrayValues;
class vtkCamera;
class vtkFollower;
class vtkGraph;
class vtkGlyph3D;
class vtkGraphToPolyData;
class vtkIconGlyphFilter;
class vtkCellCenters;
class vtkPolyData;
class vtkPolyDataMapper;
class vtkPolyDataMapper2D;
class vtkLookupTable;
class vtkTransformCoordinateSystems;
class vtkTexture;
class vtkTexturedActor2D;
class vtkVertexGlyphFilter;

class VTKRENDERINGCORE_EXPORT vtkGraphMapper : public vtkMapper
{
public:
  static vtkGraphMapper *New();
  vtkTypeMacro(vtkGraphMapper, vtkMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  void Render(vtkRenderer *ren, vtkActor *act) override;


  void SetVertexColorArrayName(const char* name);
  const char* GetVertexColorArrayName();


  void SetColorVertices(bool vis);
  bool GetColorVertices();
  void ColorVerticesOn();
  void ColorVerticesOff();


  void SetScaledGlyphs(bool arg);
  vtkGetMacro(ScaledGlyphs, bool);
  vtkBooleanMacro(ScaledGlyphs, bool);


  vtkSetStringMacro(ScalingArrayName);
  vtkGetStringMacro(ScalingArrayName);


  void SetEdgeVisibility(bool vis);
  bool GetEdgeVisibility();
  vtkBooleanMacro(EdgeVisibility, bool);


  void SetEdgeColorArrayName(const char* name);
  const char* GetEdgeColorArrayName();


  void SetColorEdges(bool vis);
  bool GetColorEdges();
  void ColorEdgesOn();
  void ColorEdgesOff();


  vtkSetStringMacro(EnabledEdgesArrayName);
  vtkGetStringMacro(EnabledEdgesArrayName);


  vtkSetMacro(EnableEdgesByArray, vtkTypeBool);
  vtkGetMacro(EnableEdgesByArray, vtkTypeBool);
  vtkBooleanMacro(EnableEdgesByArray, vtkTypeBool);


  vtkSetStringMacro(EnabledVerticesArrayName);
  vtkGetStringMacro(EnabledVerticesArrayName);


  vtkSetMacro(EnableVerticesByArray, vtkTypeBool);
  vtkGetMacro(EnableVerticesByArray, vtkTypeBool);
  vtkBooleanMacro(EnableVerticesByArray, vtkTypeBool);


  void SetIconArrayName(const char* name);
  const char* GetIconArrayName();

  void AddIconType(const char *type, int index);

  void ClearIconTypes();


  void SetIconSize(int *size);
  int *GetIconSize();

  void SetIconAlignment(int alignment);


  vtkTexture *GetIconTexture();
  void SetIconTexture(vtkTexture *texture);


  void SetIconVisibility(bool vis);
  bool GetIconVisibility();
  vtkBooleanMacro(IconVisibility, bool);


  vtkGetMacro(VertexPointSize,float);
  void SetVertexPointSize(float size);


  vtkGetMacro(EdgeLineWidth,float);
  void SetEdgeLineWidth(float width);

  void ReleaseGraphicsResources(vtkWindow *) override;

  vtkMTimeType GetMTime() override;


  void SetInputData(vtkGraph *input);
  vtkGraph *GetInput();

  double *GetBounds() VTK_SIZEHINT(6) override;
  void GetBounds(double* bounds) override
    { Superclass::GetBounds(bounds); }


  vtkGetObjectMacro(EdgeLookupTable, vtkLookupTable);
  vtkGetObjectMacro(VertexLookupTable, vtkLookupTable);

protected:
  vtkGraphMapper();
  ~vtkGraphMapper() override;


  vtkGetStringMacro(VertexColorArrayNameInternal);
  vtkSetStringMacro(VertexColorArrayNameInternal);
  vtkGetStringMacro(EdgeColorArrayNameInternal);
  vtkSetStringMacro(EdgeColorArrayNameInternal);
  char* VertexColorArrayNameInternal;
  char* EdgeColorArrayNameInternal;

  char* EnabledEdgesArrayName;
  char* EnabledVerticesArrayName;
  vtkTypeBool EnableEdgesByArray;
  vtkTypeBool EnableVerticesByArray;

  vtkGetStringMacro(IconArrayNameInternal);
  vtkSetStringMacro(IconArrayNameInternal);
  char* IconArrayNameInternal;

  vtkSmartPointer<vtkGlyph3D> CircleGlyph;
  vtkSmartPointer<vtkGlyph3D> CircleOutlineGlyph;

  vtkSmartPointer<vtkGraphToPolyData> GraphToPoly;
  vtkSmartPointer<vtkVertexGlyphFilter> VertexGlyph;
  vtkSmartPointer<vtkIconGlyphFilter> IconGlyph;
  vtkSmartPointer<vtkMapArrayValues> IconTypeToIndex;
  vtkSmartPointer<vtkTransformCoordinateSystems> IconTransform;

  vtkSmartPointer<vtkPolyDataMapper> EdgeMapper;
  vtkSmartPointer<vtkPolyDataMapper> VertexMapper;
  vtkSmartPointer<vtkPolyDataMapper> OutlineMapper;
  vtkSmartPointer<vtkPolyDataMapper2D> IconMapper;

  vtkSmartPointer<vtkActor> EdgeActor;
  vtkSmartPointer<vtkActor> VertexActor;
  vtkSmartPointer<vtkActor> OutlineActor;
  vtkSmartPointer<vtkTexturedActor2D> IconActor;

  // Color maps
  vtkLookupTable* EdgeLookupTable;
  vtkLookupTable* VertexLookupTable;

  void ReportReferences(vtkGarbageCollector*) override;

  // see algorithm for more info
  int FillInputPortInformation(int port, vtkInformation* info) override;

private:
  vtkGraphMapper(const vtkGraphMapper&) = delete;
  void operator=(const vtkGraphMapper&) = delete;

  // Helper function
  vtkPolyData* CreateCircle(bool filled);

  float VertexPointSize;
  float EdgeLineWidth;
  bool ScaledGlyphs;
  char* ScalingArrayName;
};

#endif