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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
/*=========================================================================
*
* Portions of this file are subject to the VTK Toolkit Version 3 copyright.
*
* Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
*
* For complete copyright, license and disclaimer of warranty information
* please refer to the NOTICE file at the top of the ITK source tree.
*
*=========================================================================*/
#ifndef itkIndent_h
#define itkIndent_h
#include "itkMacro.h"
#include <iostream>
namespace itk
{
/** \class Indent
* \brief Control indentation during Print() invocation.
*
* Indent is used to control indentation during the chaining print
* process. This way nested objects can correctly indent themselves.
* This class works with the print methods defined in Object (i.e.,
* the public method Print() and the protected methods PrintSelf(),
* PrintHeader(), and PrintTrailer().
*
* \ingroup OSSystemObjects
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT Indent
{
public:
/** Standard class type aliases. */
using Self = Indent;
/** Method for creation through the object factory. */
static Self *
New();
/** Destroy this instance. */
void
Delete()
{
delete this;
}
/** Construct the object with an initial indentation level. */
Indent(int ind = 0) { m_Indent = ind; }
/** Return the name of the class. */
static const char *
GetNameOfClass()
{
return "Indent";
}
/** Determine the next indentation level. Keep indenting by two until the
* a maximum of forty spaces is reached. */
Indent
GetNextIndent() const;
/** Print out the indentation. Basically output a bunch of spaces. */
friend ITKCommon_EXPORT std::ostream &
operator<<(std::ostream & os, const Indent & ind);
private:
int m_Indent;
};
} // end namespace itk
#endif
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