00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkGraphLayout.h,v $ 00005 00006 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen 00007 All rights reserved. 00008 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00009 00010 This software is distributed WITHOUT ANY WARRANTY; without even 00011 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00012 PURPOSE. See the above copyright notice for more information. 00013 00014 =========================================================================*/ 00015 /*------------------------------------------------------------------------- 00016 Copyright 2008 Sandia Corporation. 00017 Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, 00018 the U.S. Government retains certain rights in this software. 00019 -------------------------------------------------------------------------*/ 00036 #ifndef __vtkGraphLayout_h 00037 #define __vtkGraphLayout_h 00038 00039 #include "vtkGraphAlgorithm.h" 00040 00041 class vtkEventForwarderCommand; 00042 class vtkGraphLayoutStrategy; 00043 00044 class VTK_INFOVIS_EXPORT vtkGraphLayout : public vtkGraphAlgorithm 00045 { 00046 public: 00047 static vtkGraphLayout *New(); 00048 vtkTypeRevisionMacro(vtkGraphLayout, vtkGraphAlgorithm); 00049 void PrintSelf(ostream& os, vtkIndent indent); 00050 00052 00053 void SetLayoutStrategy(vtkGraphLayoutStrategy *strategy); 00054 vtkGetObjectMacro(LayoutStrategy, vtkGraphLayoutStrategy); 00056 00058 virtual int IsLayoutComplete(); 00059 00061 virtual unsigned long GetMTime(); 00062 00063 protected: 00064 vtkGraphLayout(); 00065 ~vtkGraphLayout(); 00066 00067 vtkGraphLayoutStrategy* LayoutStrategy; 00068 00070 00072 vtkEventForwarderCommand *EventForwarder; 00073 unsigned long ObserverTag; 00075 00076 int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *); 00077 00078 private: 00079 00080 vtkGraph* LastInput; 00081 vtkGraph* InternalGraph; 00082 unsigned long LastInputMTime; 00083 bool StrategyChanged; 00084 00085 vtkGraphLayout(const vtkGraphLayout&); // Not implemented. 00086 void operator=(const vtkGraphLayout&); // Not implemented. 00087 }; 00088 00089 #endif
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