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 /*
  * This file is part of Office 2007 Filters for Calligra
  *
  * Copyright (C) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Contact: Suresh Chande suresh.chande@nokia.com
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
  * version 2.1 as published by the Free Software Foundation.
  *
  * 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA
  *
  */
 
 #ifndef MSOOXMLREADER_H
 #define MSOOXMLREADER_H
 
 #include "komsooxml_export.h"
 
 #include <QXmlStreamReader>
 #include <QStack>
 #include <QUrl>
 
 #include "MsooXmlDebug.h"
 #include <KoXmlReader.h>
 #include <KoFilter.h>
 #include <KoOdfExporter.h>
 
 
 namespace MSOOXML
 {
 
 class MsooXmlRelationships;
 
 //! Context for MsooXmlReader::read()
 class KOMSOOXML_EXPORT MsooXmlReaderContext
 {
 protected:
     MsooXmlReaderContext(MsooXmlRelationships* _relationships = 0);
 public:
     virtual ~MsooXmlReaderContext();
     MSOOXML::MsooXmlRelationships* relationships;
     QMap<QString, QString> colorMap;
 
     // element:graphic - A frame might contain a graphic object that was
     // generated by an external source and needs a container in which to be
     // displayed.  A graphic object might represent a group of objects.
     bool graphicObjectIsGroup;
 
 private:
     Q_DISABLE_COPY(MsooXmlReaderContext)
 };
 
 //! A base class reading MSOOXML parts like document.xml or styles.xml.
 class KOMSOOXML_EXPORT MsooXmlReader : public QXmlStreamReader, public KoOdfWriters
 {
 public:
     explicit MsooXmlReader(KoOdfWriters *writers);
 
     MsooXmlReader(QIODevice* io, KoOdfWriters *writers);
 
     virtual ~MsooXmlReader();
 
     //! Reads/parses the file
     virtual KoFilter::ConversionStatus read(MsooXmlReaderContext* context = 0) = 0;
 
     //! Sets filename for the document being read.
     //! Only for error reporting purposes, used in raiseError().
     void setFileName(const QString &fileName) {
         m_fileName = fileName;
     }
 
     //! @return filename for the document being read.
     //! Only for error reporting purposes, used in raiseError().
     QString fileName() const  {
         return m_fileName;
     }
 
     //! Reimplemented after QXmlStreamReader: adds line, column and filename information
     void raiseError(const QString & message = QString());
 
     // Uncomment if debugging is needed
     //! Reimplemented after QXmlStreamReader for supporting undo read and for debugging purposes
     //TokenType readNext();
 
     //! Undoes recent readNext(); only one recent readNext() can be undoed
     //void undoReadNext();
 
     // const strings (for optimization)
     static const char constOn[];
     static const char constOff[];
     static const char constTrue[];
     static const char constFalse[];
     static const char constNone[];
     static const char const1[];
     static const char const0[];
     static const char constAuto[];
     static const char constFloat[];
     static const char constPercentage[];
     static const char constCurrency[];
     static const char constDate[];
     static const char constTime[];
     static const char constBoolean[];
     static const char constString[];
 
 protected:
     // -- general
     bool expectElName(const char* elementName);
     bool expectElNameEnd(const char* elementName);
     bool expectEl(const char* qualifiedElementName);
     bool expectEl(const QString& qualifiedElementName);
     bool expectEl(const QList<QByteArray>& qualifiedElementNames);
     bool expectElEnd(const QString& qualifiedElementName);
     bool expectElEnd(const char* qualifiedElementName);
     bool expectNS(const char* nsName);
     void raiseElNotFoundError(const char* elementName);
     void raiseAttributeNotFoundError(const char* attrName);
     void raiseNSNotFoundError(const char* nsName);
     void raiseUnexpectedAttributeValueError(const QString& value, const char* attrName);
     void raiseUnexpectedSecondOccurenceOfElError(const char* elementName);
 
     //! Decodes boolean attribute. Used by read_b(), read_i(), etc.
     bool readBooleanAttr(const char* attrName, bool defaultValue = false) const;
 
     QString m_defaultNamespace; //!< stores namespace (for optimization)
 
     QStack<QByteArray> m_callsNames;
 #ifndef NDEBUG
     QStack<QByteArray> m_callsNamesDebug;
 #endif
 
 private:
     Q_DISABLE_COPY(MsooXmlReader)
 
     QString m_fileName;
     bool m_readUndoed;
     QXmlStreamReader::TokenType m_recentType;
 
     void init();
 };
 
 } // namespace MSOOXML
 
 //! debugMsooXml stream operator. Writes this reader to the debug output in a nicely formatted way.
 //! @todo add the same for QXmlStreamWriter
 KOMSOOXML_EXPORT QDebug operator<<(QDebug dbg, const QXmlStreamReader& reader);
 
 #endif //MSOOXMLREADER_H