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107 lines
3.1 KiB
107 lines
3.1 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkProgrammableDataObjectSource.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#include "vtkProgrammableDataObjectSource.h"
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#include "vtkDataObject.h"
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#include "vtkInformation.h"
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#include "vtkInformationVector.h"
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#include "vtkObjectFactory.h"
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vtkCxxRevisionMacro(vtkProgrammableDataObjectSource, "$Revision: 1.17 $");
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vtkStandardNewMacro(vtkProgrammableDataObjectSource);
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// Construct programmable filter with empty execute method.
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vtkProgrammableDataObjectSource::vtkProgrammableDataObjectSource()
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{
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this->ExecuteMethod = NULL;
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this->ExecuteMethodArg = NULL;
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this->ExecuteMethodArgDelete = NULL;
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vtkDataObject *output = vtkDataObject::New();
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this->SetOutput(output);
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// Releasing data for pipeline parallism.
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// Filters will know it is empty.
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output->ReleaseData();
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output->Delete();
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this->SetNumberOfInputPorts(0);
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}
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vtkProgrammableDataObjectSource::~vtkProgrammableDataObjectSource()
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{
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// delete the current arg if there is one and a delete meth
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if ((this->ExecuteMethodArg)&&(this->ExecuteMethodArgDelete))
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{
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(*this->ExecuteMethodArgDelete)(this->ExecuteMethodArg);
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}
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}
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// Specify the function to use to generate the source data. Note
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// that the function takes a single (void *) argument.
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void vtkProgrammableDataObjectSource::SetExecuteMethod(void (*f)(void *), void *arg)
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{
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if ( f != this->ExecuteMethod || arg != this->ExecuteMethodArg )
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{
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// delete the current arg if there is one and a delete meth
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if ((this->ExecuteMethodArg)&&(this->ExecuteMethodArgDelete))
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{
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(*this->ExecuteMethodArgDelete)(this->ExecuteMethodArg);
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}
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this->ExecuteMethod = f;
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this->ExecuteMethodArg = arg;
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this->Modified();
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}
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}
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// Set the arg delete method. This is used to free user memory.
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void vtkProgrammableDataObjectSource::SetExecuteMethodArgDelete(void (*f)(void *))
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{
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if ( f != this->ExecuteMethodArgDelete)
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{
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this->ExecuteMethodArgDelete = f;
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this->Modified();
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}
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}
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int vtkProgrammableDataObjectSource::RequestData(
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vtkInformation *,
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vtkInformationVector **,
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vtkInformationVector *)
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{
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vtkDebugMacro(<<"Executing programmable data object filter");
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// Now invoke the procedure, if specified.
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if ( this->ExecuteMethod != NULL )
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{
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(*this->ExecuteMethod)(this->ExecuteMethodArg);
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}
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return 1;
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}
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void vtkProgrammableDataObjectSource::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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if ( this->ExecuteMethod )
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{
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os << indent << "An ExecuteMethod has been defined\n";
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}
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else
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{
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os << indent << "An ExecuteMethod has NOT been defined\n";
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}
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}
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