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/*=========================================================================
Program: Visualization Toolkit
Module: vtkDataArraySelection.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.
=========================================================================*/
/**
* @class vtkDataArraySelection
* @brief Store on/off settings for data arrays for a vtkSource.
*
* vtkDataArraySelection can be used by vtkSource subclasses to store
* on/off settings for whether each vtkDataArray in its input should
* be passed in the source's output. This is primarily intended to
* allow file readers to configure what data arrays are read from the
* file.
*/
#ifndef vtkDataArraySelection_h
#define vtkDataArraySelection_h
#include "vtkCommonCoreModule.h" // For export macro
#include "vtkObject.h"
class vtkDataArraySelectionInternals;
class VTKCOMMONCORE_EXPORT vtkDataArraySelection : public vtkObject
{
public:
vtkTypeMacro(vtkDataArraySelection, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent) override;
static vtkDataArraySelection* New();
/**
* Enable the array with the given name. Creates a new entry if
* none exists.
*
* This method will call `this->Modified()` if the enable state for the
* array changed.
*/
void EnableArray(const char* name);
/**
* Disable the array with the given name. Creates a new entry if
* none exists.
*
* This method will call `this->Modified()` if the enable state for the
* array changed.
*/
void DisableArray(const char* name);
/**
* Return whether the array with the given name is enabled. If
* there is no entry, the array is assumed to be disabled.
*/
int ArrayIsEnabled(const char* name) const;
/**
* Return whether the array with the given name exists.
*/
int ArrayExists(const char* name) const;
/**
* Enable all arrays that currently have an entry.
*
* This method will call `this->Modified()` if the enable state for any of the known
* arrays is changed.
*/
void EnableAllArrays();
/**
* Disable all arrays that currently have an entry.
*
* This method will call `this->Modified()` if the enable state for any of the known
* arrays is changed.
*/
void DisableAllArrays();
/**
* Get the number of arrays that currently have an entry.
*/
int GetNumberOfArrays() const;
/**
* Get the number of arrays that are enabled.
*/
int GetNumberOfArraysEnabled() const;
/**
* Get the name of the array entry at the given index.
*/
const char* GetArrayName(int index) const;
/**
* Get an index of the array with the given name.
*/
int GetArrayIndex(const char* name) const;
/**
* Get the index of an array with the given name among those
* that are enabled. Returns -1 if the array is not enabled.
*/
int GetEnabledArrayIndex(const char* name) const;
/**
* Get whether the array at the given index is enabled.
*/
int GetArraySetting(int index) const;
/**
* Get whether the array is enabled/disable using its name.
*/
int GetArraySetting(const char* name) const { return this->ArrayIsEnabled(name); }
/**
* Set array setting given the name. If the array doesn't exist, it will be
* added.
*
* This method will call `this->Modified()` if the enable state for the
* array changed.
*/
void SetArraySetting(const char* name, int status);
/**
* Remove all array entries.
*
* This method will call `this->Modified()` if the arrays were cleared.
*/
void RemoveAllArrays();
/**
* Add to the list of arrays that have entries. For arrays that
* already have entries, the settings are untouched. For arrays
* that don't already have an entry, they are assumed to be enabled
* by default. The state can also be passed as the second argument.
* This method should be called only by the filter owning this
* object.
*
* This method **does not** call `this->Modified()`.
*
* Also note for arrays already known to this instance (i.e.
* `this->ArrayExists(name) == true`, this method has no effect.
*/
int AddArray(const char* name, bool state = true);
/**
* Remove an array setting given its index.
*
* This method **does not** call `this->Modified()`.
*/
void RemoveArrayByIndex(int index);
/**
* Remove an array setting given its name.
*
* This method **does not** call `this->Modified()`.
*/
void RemoveArrayByName(const char* name);
//@{
/**
* Set the list of arrays that have entries. For arrays that
* already have entries, the settings are copied. For arrays that
* don't already have an entry, they are assigned the given default
* status. If no default status is given, it is assumed to be on.
* There will be no more entries than the names given. This method
* should be called only by the filter owning this object. The
* signature with the default must have a different name due to a
* bug in the Borland C++ 5.5 compiler.
*
* This method **does not** call `this->Modified()`.
*/
void SetArrays(const char* const* names, int numArrays);
void SetArraysWithDefault(const char* const* names, int numArrays, int defaultStatus);
//@}
/**
* Copy the selections from the given vtkDataArraySelection instance.
*
* This method will call `this->Modified()` if the array selections changed.
*/
void CopySelections(vtkDataArraySelection* selections);
/**
* Update `this` to include values from `other`. For arrays that don't
* exist in `this` but exist in `other`, they will get added to `this` with
* the same array setting as in `other`. Array settings for arrays already in
* `this` are left unchanged.
*
* This method will call `this->Modified()` if the array selections changed.
*/
void Union(vtkDataArraySelection* other);
//@{
/**
* Get/Set enabled state for any unknown arrays. Default is 0 i.e. not
* enabled. When set to 1, `ArrayIsEnabled` will return 1 for any
* array not explicitly specified.
*/
vtkSetMacro(UnknownArraySetting, int);
vtkGetMacro(UnknownArraySetting, int);
//@}
protected:
vtkDataArraySelection();
~vtkDataArraySelection() override;
// Internal implementation details.
vtkDataArraySelectionInternals* Internal;
int UnknownArraySetting;
private:
vtkDataArraySelection(const vtkDataArraySelection&) = delete;
void operator=(const vtkDataArraySelection&) = delete;
};
#endif