text: /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    vtkSILBuilder.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.
  
  =========================================================================*/
  // .NAME vtkSILBuilder - helper class to build a SIL i.e. a directed graph used
  // by reader producing composite datasets to describes the relationships among
  // the blocks.
  // .SECTION Description
  // vtkSILBuilder is a helper class to build a SIL i.e. a directed graph used
  // by reader producing composite datasets to describes the relationships among
  // the blocks.
  // Refer to http://www.paraview.org/Wiki/Block_Hierarchy_Meta_Data for details.
  
  #ifndef vtkSILBuilder_h
  #define vtkSILBuilder_h
  
  #include "vtkIOXdmf2Module.h" // For export macro
  #include "vtkObject.h"
  
  class vtkUnsignedCharArray;
  class vtkStringArray;
  class vtkMutableDirectedGraph;
  
  class VTKIOXDMF2_EXPORT vtkSILBuilder : public vtkObject
  {
  public:
    static vtkSILBuilder* New();
    vtkTypeMacro(vtkSILBuilder, vtkObject);
    void PrintSelf(ostream& os, vtkIndent indent);
  
    // Description
    // Get/Set the graph to populate.
    void SetSIL(vtkMutableDirectedGraph*);
    vtkGetObjectMacro(SIL, vtkMutableDirectedGraph);
  
    // Description:
    // Initializes the data-structures.
    void Initialize();
  
    // Description:
    // Add vertex, child-edge or cross-edge to the graph.
    vtkIdType AddVertex(const char* name);
    vtkIdType AddChildEdge(vtkIdType parent, vtkIdType child);
    vtkIdType AddCrossEdge(vtkIdType src, vtkIdType dst);
  
    // Description:
    // Returns the vertex id for the root vertex.
    vtkGetMacro(RootVertex, vtkIdType);
  
  protected:
    vtkSILBuilder();
    ~vtkSILBuilder();
  
    vtkStringArray* NamesArray;
    vtkUnsignedCharArray* CrossEdgesArray;
    vtkMutableDirectedGraph* SIL;
  
    vtkIdType RootVertex;
  
  private:
    vtkSILBuilder(const vtkSILBuilder&) VTK_DELETE_FUNCTION;
    void operator=(const vtkSILBuilder&) VTK_DELETE_FUNCTION;
  
  };
  
  #endif
  