File indexing completed on 2024-05-12 16:29:19

 /* This file is part of the KDE project
 
    Copyright (C) 2012-2014 Inge Wallin            <inge@lysator.liu.se>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #ifndef ODFREADER_H
 #define ODFREADER_H
 
 // Qt
 #include <QHash>
 #include <QString>
 
 // Calligra
 #include <KoXmlStreamReader.h>
 
 // this library
 #include "koodfreader_export.h"
 #include "OdfReaderInternals.h"
 
 
 class QSizeF;
 
 class KoXmlWriter;
 class KoStore;
 
 class OdfReaderBackend;
 class OdfReaderContext;
 
 class OdfTextReader;
 class OdfDrawReader;
 
 
 /** @brief Read the XML tree of the content of an ODF file.
  *
  * The OdfReader is used to traverse (read) the contents of an ODF file using
  * an XML stream reader.  For reading a specific type of ODF, e.g. a text
  * document, you should create a new class, OdtReader that inherits this
  * class.
  *
  * For every XML element that the reading process comes across it will call a
  * specific function in a backend class: @see OdfReaderBackend.
  *
  * Before the reading process is started the ODF file will be
  * analyzed to collect some data that may be needed during the
  * read: metadata, manifest and styles are examples of this. This
  * data is stored in the so called reading context, which is kept in
  * an instance of the OdfReaderContext class.
  *
  * The context will be passed around to the backend in every call to a
  * backend callback function.
  *
  * In addition to the pre-analyzed data from the ODF file, the context
  * can be used to keep track of data that is used in the backend
  * processing such as internal links, lists of embedded data such as
  * pictures.
  */
 class KOODFREADER_EXPORT OdfReader
 {
  public:
     OdfReader();
     virtual ~OdfReader();
 
     OdfTextReader *textReader() const;
     void setTextReader(OdfTextReader *textReader);
 
     OdfDrawReader *drawReader() const;
     void setDrawReader(OdfDrawReader *drawReader);
 
     bool analyzeContent(OdfReaderContext *context);
 
     bool readContent(OdfReaderBackend *backend, OdfReaderContext *context);
 
  protected:
     // All readElement*() are named after the full qualifiedName of
     // the element in ODF that they handle.
 
     // ODF document level functions
     DECLARE_READER_FUNCTION(OfficeBody);
 
     // ONE of these should be reimplemented by each subclass, respectively.
     virtual DECLARE_READER_FUNCTION(OfficeText);
     virtual DECLARE_READER_FUNCTION(OfficeSpreadsheet);
     virtual DECLARE_READER_FUNCTION(OfficePresentation);
 
     // ----------------------------------------------------------------
     // Other functions
 
     void readUnknownElement(KoXmlStreamReader &reader);
 
 
  protected:
     OdfReaderBackend  *m_backend;
     OdfReaderContext  *m_context;
 
     // Helper readers
     OdfTextReader     *m_textReader;
     OdfDrawReader     *m_drawReader;
 };
 
 #endif // ODFREADER_H