QxOrm  1.2.9
C++ Object Relational Mapping library
QxXmlWriter.h
Go to the documentation of this file.
00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
00005 **
00006 ** This file is part of the QxOrm library
00007 **
00008 ** This software is provided 'as-is', without any express or implied
00009 ** warranty. In no event will the authors be held liable for any
00010 ** damages arising from the use of this software
00011 **
00012 ** Commercial Usage
00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
00014 ** accordance with the commercial license agreement provided with the
00015 ** Software or, alternatively, in accordance with the terms contained in
00016 ** a written agreement between you and Lionel Marty
00017 **
00018 ** GNU General Public License Usage
00019 ** Alternatively, this file may be used under the terms of the GNU
00020 ** General Public License version 3.0 as published by the Free Software
00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
00022 ** packaging of this file. Please review the following information to
00023 ** ensure the GNU General Public License version 3.0 requirements will be
00024 ** met : http://www.gnu.org/copyleft/gpl.html
00025 **
00026 ** If you are unsure which license is appropriate for your use, or
00027 ** if you have questions regarding the use of this file, please contact :
00028 ** contact@qxorm.com
00029 **
00030 ****************************************************************************/
00031 
00032 #ifndef _QX_XML_WRITER_H_
00033 #define _QX_XML_WRITER_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00039 #include <QtCore/qhash.h>
00040 #include <QtCore/qbytearray.h>
00041 #include <QtCore/qdatastream.h>
00042 
00043 #if (QT_VERSION >= 0x040800)
00044 #include <QtCore/QXmlStreamWriter>
00045 #else // (QT_VERSION >= 0x040800)
00046 #include <QtXml/QXmlStreamWriter>
00047 #endif // (QT_VERSION >= 0x040800)
00048 
00049 #define QX_XML_PREFIX_BINARY_DATA_KEY     "qx_binary_data_key_"
00050 #define QX_XML_ATTRIBUTE_IS_BINARY_DATA   "qx_is_binary_data"
00051 
00052 namespace qx {
00053 
00054 class QX_DLL_EXPORT QxXmlWriter : public QXmlStreamWriter
00055 {
00056 
00057 public:
00058 
00059    typedef boost::shared_ptr<QByteArray> type_byte_arr_ptr;
00060    typedef QHash<QString, type_byte_arr_ptr> type_hash_bin_data;
00061    typedef QHashIterator<QString, type_byte_arr_ptr> type_hash_bin_data_itr;
00062 
00063 protected:
00064 
00065    type_hash_bin_data m_mapBinaryData;    // Collection of binary data associated with xml (<=> attached files)
00066    long m_lKeyBinaryData;                 // Current binary data key to write to xml
00067    QString m_pStringWriter;               // String containing xml to write
00068 
00069 public:
00070 
00071    QxXmlWriter() : QXmlStreamWriter(& m_pStringWriter), m_lKeyBinaryData(0) { initQxXmlWriter(); }
00072    virtual ~QxXmlWriter() { ; }
00073 
00074    QString getXml() const                             { return m_pStringWriter; }
00075    type_hash_bin_data_itr getBinaryDataItr() const    { return type_hash_bin_data_itr(m_mapBinaryData); }
00076    long getBinaryDataCount() const                    { return m_mapBinaryData.count(); }
00077 
00078    QString writeBinaryData(const QString & namespaceUri, const QString & name, type_byte_arr_ptr pData);
00079    QString writeBinaryData(const QString & qualifiedName, type_byte_arr_ptr pData);
00080 
00081 protected:
00082 
00083    inline QString getNextKeyBinaryData()  { return (QString(QX_XML_PREFIX_BINARY_DATA_KEY) + QString::number(++m_lKeyBinaryData)); }
00084    inline void initQxXmlWriter()          { setAutoFormatting(true); setAutoFormattingIndent(3); }
00085 
00086 };
00087 
00088 } // namespace qx
00089 
00090 QX_DLL_EXPORT QDataStream & operator << (QDataStream & stream, const qx::QxXmlWriter & xmlWriter);
00091 
00092 #endif // _QX_XML_WRITER_H_