vtkPythonAnnotationFilter.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkPythonAnnotationFilter_h
#define vtkPythonAnnotationFilter_h

#include "vtkPVVTKExtensionsFiltersPythonModule.h" //needed for exports
#include "vtkTableAlgorithm.h"

class VTKPVVTKEXTENSIONSFILTERSPYTHON_EXPORT vtkPythonAnnotationFilter : public vtkTableAlgorithm
{
public:
  static vtkPythonAnnotationFilter* New();
  vtkTypeMacro(vtkPythonAnnotationFilter, vtkTableAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkSetStringMacro(Expression);
  vtkGetStringMacro(Expression);


  vtkSetMacro(ArrayAssociation, int);
  vtkGetMacro(ArrayAssociation, int);


  vtkGetStringMacro(ComputedAnnotationValue);

  //------------------------------------------------------------------------------

  vtkGetMacro(DataTimeValid, bool);
  vtkGetMacro(DataTime, double);

  vtkGetMacro(NumberOfTimeSteps, int);
  double GetTimeStep(int index)
  {
    return (index < this->NumberOfTimeSteps ? this->TimeSteps[index] : 0.0);
  }

  vtkGetMacro(TimeRangeValid, bool);
  vtkGetVector2Macro(TimeRange, double);
  vtkGetObjectMacro(CurrentInputDataObject, vtkDataObject);
  void SetComputedAnnotationValue(const char* value);

protected:
  vtkPythonAnnotationFilter();
  ~vtkPythonAnnotationFilter() override;

  int FillInputPortInformation(int port, vtkInformation* info) override;
  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

  virtual void EvaluateExpression();

  char* Expression;
  char* ComputedAnnotationValue;
  int ArrayAssociation;

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

  bool DataTimeValid;
  double DataTime;
  int NumberOfTimeSteps;
  double* TimeSteps;
  bool TimeRangeValid;
  double TimeRange[2];
  vtkDataObject* CurrentInputDataObject;
};

#endif