dox/IO/vtkXMLUtilities.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkXMLUtilities.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.

=========================================================================*/
#ifndef __vtkXMLUtilities_h
#define __vtkXMLUtilities_h

#include "vtkObject.h"

class vtkXMLDataElement;

class VTK_IO_EXPORT vtkXMLUtilities : public vtkObject
{
public:
  static vtkXMLUtilities* New();
  vtkTypeMacro(vtkXMLUtilities, vtkObject);


  static void EncodeString(const char *input, int input_encoding, 
                           ostream &output, int output_encoding,
                           int special_entities = 0);


  static void CollateAttributes(vtkXMLDataElement*, 
                                ostream&, 
                                const char *sep = 0);

  //BTX

  static void FlattenElement(vtkXMLDataElement*, 
                             ostream&, 
                             vtkIndent *indent = 0,
                             int indent_attributes = 1);


  static int WriteElementToFile(vtkXMLDataElement*, 
                                const char *filename, 
                                vtkIndent *indent = 0);
  //ETX

  //BTX

  static vtkXMLDataElement* ReadElementFromStream(
    istream&, int encoding = VTK_ENCODING_NONE);
  static vtkXMLDataElement* ReadElementFromString(
    const char *str, int encoding = VTK_ENCODING_NONE);
  static vtkXMLDataElement* ReadElementFromFile(
    const char *filename, int encoding = VTK_ENCODING_NONE);
  //ETX


  static void ReadElementFromAttributeArray(
        vtkXMLDataElement *element,
        const char** atts,
        int encoding);

  //BTX

  static int FindSimilarElements(vtkXMLDataElement *elem, 
                                 vtkXMLDataElement *tree, 
                                 vtkXMLDataElement ***results);
  //ETX


  static void FactorElements(vtkXMLDataElement *tree);
  static void UnFactorElements(vtkXMLDataElement *tree);

protected:  
  vtkXMLUtilities() {};
  ~vtkXMLUtilities() {};
  
  static int FactorElementsInternal(vtkXMLDataElement *tree, 
                                    vtkXMLDataElement *root, 
                                    vtkXMLDataElement *pool);
  static int UnFactorElementsInternal(vtkXMLDataElement *tree, 
                                      vtkXMLDataElement *pool);

private:
  vtkXMLUtilities(const vtkXMLUtilities&); // Not implemented
  void operator=(const vtkXMLUtilities&); // Not implemented    
};

#endif

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