File indexing completed on 2025-01-19 10:49:27

 /* This file is part of the KDE project
 
    SPDX-FileCopyrightText: 2013-2014 Inge Wallin <inge@lysator.liu.se>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef ODFREADERBACKEND_H
 #define ODFREADERBACKEND_H
 
 // Calligra
 #include <KoXmlStreamReader.h>
 #include <KoFilter.h>
 
 // this library
 #include "koodfreader_export.h"
 #include "OdfReader.h"
 
 
 class QByteArray;
 class QSizeF;
 class QStringList;
 class KoStore;
 class OdfReaderContext;
 
 
 /** @brief A default backend for the OdfReader class.
  *
  * This class defines an interface and the default behaviour for the
  * backend to the ODF reader (@see OdfReader). When the
  * reader is called upon to traverse a certain XML tree, there will
  * be two parameters to the root traverse function: a pointer to a
  * backend object and a pointer to a context object.
  *
  * The reader will traverse (read) the XML tree and for every element
  * it comes across it will call a specific function in the backend and
  * every call will pass the pointer to the context object.
  *
  * Each supported XML tag has a corresponding callback function. This
  * callback function will be called twice: once when the tag is first
  * encountered anc once when the tag is closed.  This means that an
  * element with no child elements will be called twice in succession.
  *
  * The callback function receives as parameter a reference to the XML
  * stream reader. From this parameter it can be deduced if the call is
  * for a start element or an end element and also access the
  * attributes of the element.
  *
  * This class defines a virtual function for every supported
  * element. It also implements a default behaviour for every element
  * which is to ignore the parameters and do nothing.
  *
  * When this class is used e.g. in a filter it is recommended to
  * inherit this class and only reimplement those functions that are
  * actually needed.
  */
 class KOODFREADER_EXPORT OdfReaderBackend
 {
  public:
     explicit OdfReaderBackend();
     virtual ~OdfReaderBackend();
 
     // ----------------------------------------------------------------
     // ODF document level functions
 
     DECLARE_BACKEND_FUNCTION(OfficeDocumentcontent);
     DECLARE_BACKEND_FUNCTION(OfficeBody);
 
  private:
     class Private;
     Private * const d;
 };
 
 
 #endif // ODFREADERBACKEND_H