vcglib/wrap/dae/xmldocumentmanaging.h

216 lines
5.1 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2008 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
#ifndef _XML_DOCUMENT_MANAGING_H
#define _XML_DOCUMENT_MANAGING_H
#include <vector>
#include <set>
#include <QtXml/QDomDocument>
#include<QtCore/QFile>
#include<QtCore/QVector>
#include <QtXml/QXmlStreamWriter>
#include <QtCore/QString>
class XMLTag
{
public:
typedef std::pair<QString,QString> TagAttribute;
typedef QVector<TagAttribute> TagAttributes;
QString _tagname;
TagAttributes _attributes;
XMLTag(const QString& tagname = QString(),const TagAttributes& attr = TagAttributes())
:_tagname(tagname),_attributes(attr)
{
}
virtual ~XMLTag()
{
}
};
class XMLLeafTag : public XMLTag
{
public:
QVector<QString> _text;
XMLLeafTag(const QString& tagname = QString(),const QVector<QString>& text = QVector<QString>())
:XMLTag(tagname),_text(text)
{
}
virtual ~XMLLeafTag()
{
}
};
class XMLDocumentWriter;
class Visitor;
class XMLNode
{
public:
XMLNode(XMLTag* tag);
virtual ~XMLNode();
virtual void applyProcedure(Visitor& v) = 0;
XMLTag* _tag;
};
class XMLInteriorNode : public XMLNode
{
public:
XMLInteriorNode(XMLTag* tag);
XMLNode* son(int ii);
QVector< XMLNode* > sons();
void applyProcedure(Visitor& v);
~XMLInteriorNode();
QVector< XMLNode* > _sons;
};
class XMLLeafNode : public XMLNode
{
public:
XMLLeafNode(XMLLeafTag* leaftag);
void applyProcedure(Visitor& v);
virtual ~XMLLeafNode();
};
class XMLDocument
{
public:
XMLDocument(XMLInteriorNode* root)
:_root(root)
{
}
~XMLDocument()
{
delete (_root);
}
XMLInteriorNode* _root;
};
class Visitor
{
public:
virtual void operator()(XMLLeafNode& leaf) = 0;
virtual void operator()(XMLInteriorNode& intnode) = 0;
};
class XMLDocumentWriter : public Visitor
{
private:
QXmlStreamWriter _stream;
QFile _file;
bool _error;
void writeText(XMLLeafNode& node)
{
XMLLeafTag* leaftag = static_cast<XMLLeafTag*>(node._tag);
for(QVector<QString>::iterator it = leaftag->_text.begin();it != leaftag->_text.end();++it)
{
QString tmp = "";
if (it != leaftag->_text.begin())
tmp = QString(" ");
_stream.writeCharacters(tmp + *it);
}
}
void writeAttributes(XMLNode& node)
{
QXmlStreamAttributes attr;
for(XMLTag::TagAttributes::iterator it = node._tag->_attributes.begin();it != node._tag->_attributes.end();++it)
attr.append(it->first,it->second);
_stream.writeAttributes(attr);
}
void recursiveStep(XMLInteriorNode& intnode)
{
QVector< XMLNode* > sons = intnode.sons();
for(QVector< XMLNode* >::iterator its = sons.begin();its != sons.end();++its)
(*its)->applyProcedure(*this);
}
public:
void operator()(XMLLeafNode& node)
{
_stream.writeStartElement(node._tag->_tagname);
writeAttributes(node);
writeText(node);
_stream.writeEndElement();
}
void operator()(XMLInteriorNode& intnode)
{
_stream.writeStartElement(intnode._tag->_tagname);
writeAttributes(intnode);
recursiveStep(intnode);
_stream.writeEndElement();
}
void operator()(XMLDocument& doc)
{
_stream.writeStartDocument();
operator()(*(doc._root));
_stream.writeEndDocument();
}
void write(XMLDocument& doc)
{
(*this)(doc);
}
bool isReliable() const
{
return !_error;
}
XMLDocumentWriter(const char* filename,const bool autoformatting = true)
:_stream(),_file(filename),_error(false)
{
if (!_file.open(QIODevice::WriteOnly | QIODevice::Text))
_error = true;
_stream.setDevice(&_file);
_stream.setAutoFormatting(autoformatting);
}
~XMLDocumentWriter()
{
_file.close();
}
};
#endif