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dox/Common/vtkSource.h

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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkSource.h,v $ 00005 Language: C++ 00006 00007 Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 00008 All rights reserved. 00009 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00010 00011 This software is distributed WITHOUT ANY WARRANTY; without even 00012 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00013 PURPOSE. See the above copyright notice for more information. 00014 00015 =========================================================================*/ 00051 #ifndef __vtkSource_h 00052 #define __vtkSource_h 00053 00054 #include "vtkProcessObject.h" 00055 00056 class vtkDataObject; 00057 class vtkErrorCode; 00058 00059 class VTK_COMMON_EXPORT vtkSource : public vtkProcessObject 00060 { 00061 public: 00062 vtkTypeRevisionMacro(vtkSource,vtkProcessObject); 00063 void PrintSelf(ostream& os, vtkIndent indent); 00064 00068 virtual void Update(); 00069 00072 virtual void UpdateWholeExtent(); 00073 00076 virtual void UpdateInformation(); 00077 00078 virtual void PropagateUpdateExtent(vtkDataObject *output); 00079 00080 virtual void TriggerAsynchronousUpdate(); 00081 00082 virtual void UpdateData(vtkDataObject *output); 00083 00087 virtual void ComputeInputUpdateExtents( vtkDataObject *output ); 00088 00090 00092 virtual void SetReleaseDataFlag(int); 00093 virtual int GetReleaseDataFlag(); 00094 vtkBooleanMacro(ReleaseDataFlag,int); 00096 00098 virtual void UnRegister(vtkObjectBase *o); 00099 00101 virtual int InRegisterLoop(vtkObject *); 00102 00104 00106 vtkDataObject **GetOutputs(); 00107 vtkGetMacro(NumberOfOutputs,int); 00109 00113 void UnRegisterAllOutputs(void); 00114 00117 int GetOutputIndex(vtkDataObject *out); 00118 00120 00122 vtkGetMacro( ErrorCode, unsigned long ); 00124 00125 protected: 00126 vtkSource(); 00127 ~vtkSource(); 00128 00130 00133 virtual void ExecuteData(vtkDataObject *vtkNotUsed(output)) { 00134 this->Execute(); }; 00136 00138 virtual void Execute(); 00139 00140 // By default, UpdateInformation calls this method to copy information 00141 // unmodified from the input to the output. 00142 virtual void ExecuteInformation(); 00143 00144 // Called to allocate the input array. Copies old inputs. 00145 void SetNumberOfOutputs(int num); 00146 00147 // method used internally for getting an output. 00148 vtkDataObject *GetOutput(int idx); 00149 00150 // protected methods for setting inputs. 00151 virtual void SetNthOutput(int num, vtkDataObject *output); 00152 virtual void AddOutput(vtkDataObject *output); 00153 virtual void RemoveOutput(vtkDataObject *output); 00154 00155 vtkDataObject **Outputs; // An Array of the outputs to the filter 00156 int NumberOfOutputs; 00157 int Updating; 00158 // Time when ExecuteInformation was last called. 00159 vtkTimeStamp InformationTime; 00160 00162 00164 vtkSetMacro( ErrorCode, unsigned long ); 00166 private: 00167 vtkSource(const vtkSource&); // Not implemented. 00168 void operator=(const vtkSource&); // Not implemented. 00169 00170 unsigned long ErrorCode; 00171 }; 00172 00173 #endif 00174 00175 00176