QxOrm 1.1.9
C++ Object Relational Mapping library
QxXmlWriter.h
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00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** http://sourceforge.net/projects/qxorm/
00005 ** Original file by Lionel Marty
00006 **
00007 ** This file is part of the QxOrm library
00008 **
00009 ** This software is provided 'as-is', without any express or implied
00010 ** warranty. In no event will the authors be held liable for any
00011 ** damages arising from the use of this software.
00012 **
00013 ** GNU Lesser General Public License Usage
00014 ** This file must be used under the terms of the GNU Lesser
00015 ** General Public License version 2.1 as published by the Free Software
00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the
00017 ** packaging of this file.  Please review the following information to
00018 ** ensure the GNU Lesser General Public License version 2.1 requirements
00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
00020 **
00021 ** If you have questions regarding the use of this file, please contact :
00022 ** contact@qxorm.com
00023 **
00024 ****************************************************************************/
00025 
00026 #ifndef _QX_XML_WRITER_H_
00027 #define _QX_XML_WRITER_H_
00028 
00029 #ifdef _MSC_VER
00030 #pragma once
00031 #endif
00032 
00033 #include <QtCore/qhash.h>
00034 #include <QtCore/qbytearray.h>
00035 #include <QtCore/qdatastream.h>
00036 
00037 #include <QtXml/QXmlStreamWriter>
00038 
00039 #define QX_XML_PREFIX_BINARY_DATA_KEY     "qx_binary_data_key_"
00040 #define QX_XML_ATTRIBUTE_IS_BINARY_DATA   "qx_is_binary_data"
00041 
00042 namespace qx {
00043 
00044 class QX_DLL_EXPORT QxXmlWriter : public QXmlStreamWriter
00045 {
00046 
00047 public:
00048 
00049    typedef boost::shared_ptr<QByteArray> type_byte_arr_ptr;
00050    typedef QHash<QString, type_byte_arr_ptr> type_hash_bin_data;
00051    typedef QHashIterator<QString, type_byte_arr_ptr> type_hash_bin_data_itr;
00052 
00053 protected:
00054 
00055    type_hash_bin_data m_mapBinaryData;    // Collection of binary data associated with xml (<=> attached files)
00056    long m_lKeyBinaryData;                 // Current binary data key to write to xml
00057    QString m_pStringWriter;               // String containing xml to write
00058 
00059 public:
00060 
00061    QxXmlWriter() : QXmlStreamWriter(& m_pStringWriter), m_lKeyBinaryData(0) { initQxXmlWriter(); }
00062    virtual ~QxXmlWriter() { ; }
00063 
00064    QString getXml() const                             { return m_pStringWriter; }
00065    type_hash_bin_data_itr getBinaryDataItr() const    { return type_hash_bin_data_itr(m_mapBinaryData); }
00066    long getBinaryDataCount() const                    { return m_mapBinaryData.count(); }
00067 
00068    QString writeBinaryData(const QString & namespaceUri, const QString & name, type_byte_arr_ptr pData);
00069    QString writeBinaryData(const QString & qualifiedName, type_byte_arr_ptr pData);
00070 
00071 protected:
00072 
00073    inline QString getNextKeyBinaryData()  { return (QString(QX_XML_PREFIX_BINARY_DATA_KEY) + QString::number(++m_lKeyBinaryData)); }
00074    inline void initQxXmlWriter()          { setAutoFormatting(true); setAutoFormattingIndent(3); }
00075 
00076 };
00077 
00078 } // namespace qx
00079 
00080 QX_DLL_EXPORT QDataStream & operator << (QDataStream & stream, const qx::QxXmlWriter & xmlWriter);
00081 
00082 #endif // _QX_XML_WRITER_H_
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