/****************************************************************************
Copyright (c) 2006, Radon Labs GmbH
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "stdneb.h"
#include "io/xmlwriter.h"

namespace IO
{
__ImplementClass(IO::XmlWriter, 'XMLW', IO::StreamWriter);

using namespace Util;
#if !__OSX__
using namespace Math;
#endif
    
//------------------------------------------------------------------------------
/**
*/
XmlWriter::XmlWriter() :
    xmlDocument(0),
    curNode(0)
{
    // empty
}

//------------------------------------------------------------------------------
/**
*/
XmlWriter::~XmlWriter()
{
    if (this->IsOpen())
    {
        this->Close();
    }
}

//------------------------------------------------------------------------------
/**
    Open the XML stream for writing. This will create a new TiXmlDocument
    object which will be written to the stream in Close().
*/
bool
XmlWriter::Open()
{
    n_assert(0 == this->xmlDocument);
    n_assert(0 == this->curNode);

    if (StreamWriter::Open())
    {
        // create xml document object
        this->xmlDocument = n_new(TiXmlDocument);

        // add declaration (<?xml version="1.0" encoding="UTF-8"?>)
        this->xmlDocument->InsertEndChild(TiXmlDeclaration("1.0", "UTF-8", ""));
        return true;
    }
    return false;
}

//------------------------------------------------------------------------------
/**
    Close the XML stream.
*/
void
XmlWriter::Close()
{
    n_assert(this->IsOpen());
    n_assert(0 != this->xmlDocument);

    // write XML data to stream
    this->xmlDocument->SaveStream(this->stream);
    
    // delete the XML document object
    n_delete(this->xmlDocument);
    this->xmlDocument = 0;
    this->curNode = 0;
        
    // close the stream
    StreamWriter::Close();
}

//------------------------------------------------------------------------------
/**
    Begin a new node. The new node will be set as the current
    node. Nodes may form a hierarchy. Make sure to finalize a node
    with a corresponding call to EndNode()!
*/
bool
XmlWriter::BeginNode(const String& name)
{
    n_assert(this->IsOpen());
    if (0 == this->curNode)
    {
        // create the root node
        this->curNode = this->xmlDocument->InsertEndChild(TiXmlElement(name.AsCharPtr()))->ToElement();
    }
    else
    {
        // create a child node
        this->curNode = this->curNode->InsertEndChild(TiXmlElement(name.AsCharPtr()))->ToElement();
    }
    return true;
}

//------------------------------------------------------------------------------
/**
    Finalize current node. This will set the parent of the current node as 
    new current node so that correct hierarchical behaviour is implemented.
*/
void
XmlWriter::EndNode()
{
    n_assert(this->IsOpen());
    n_assert(0 != this->curNode);

    TiXmlNode* parent = this->curNode->Parent();
    n_assert(parent);
    if (parent == this->xmlDocument)
    {
        // we're back at the root
        this->curNode = 0;
    }
    else
    {
        this->curNode = parent->ToElement();
    }
}

//------------------------------------------------------------------------------
/**
    Write inline text at current position.
*/
void
XmlWriter::WriteContent(const String& text)
{
    n_assert(0 != this->curNode);
    this->curNode->InsertEndChild(TiXmlText(text.AsCharPtr()));
}

//------------------------------------------------------------------------------
/**
    Write a comment into the XML file.
*/
void
XmlWriter::WriteComment(const String& comment)
{
    n_assert(0 != this->curNode);
    TiXmlComment tiXmlComment;
    tiXmlComment.SetValue(comment.AsCharPtr());
    this->curNode->InsertEndChild(tiXmlComment);
}

//------------------------------------------------------------------------------
/**
    Set the provided attribute to a string value.
*/
void
XmlWriter::SetString(const String& name, const String& value)
{
    n_assert(this->IsOpen());
    n_assert(0 != this->curNode);
    n_assert(name.IsValid());
    this->curNode->SetAttribute(name.AsCharPtr(), value.AsCharPtr());
}

//------------------------------------------------------------------------------
/**
    Set the provided attribute to a bool value.
*/
void
XmlWriter::SetBool(const String& name, bool value)
{
    String s;
    s.SetBool(value);
    this->SetString(name, s);
}

//------------------------------------------------------------------------------
/**
    Set the provided attribute to an int value.
*/
void
XmlWriter::SetInt(const String& name, int value)
{
    String s;
    s.SetInt(value);
    this->SetString(name, s);
}

//------------------------------------------------------------------------------
/**
    Set the provided attribute to a float value.
*/
void
XmlWriter::SetFloat(const String& name, float value)
{
    String s;
    s.SetFloat(value);
    this->SetString(name, s);
}


//------------------------------------------------------------------------------
/**
    Set the provided attribute to a float4 value.
*/
void
XmlWriter::SetFloat4(const String& name, const Math::float4& value)
{
    String s;
    s.SetFloat4(value);
    this->SetString(name, s);
}

//------------------------------------------------------------------------------
/**
    Set the provided attribute to a matrix44 value.  The stream must be
    in Write or ReadWrite mode for this.
*/
void
XmlWriter::SetMatrix44(const String& name, const Math::matrix44& value)
{
    String s;
    s.SetMatrix44(value);
    this->SetString(name, s);
}

//------------------------------------------------------------------------------
/**

*/
void XmlWriter::SetAssetPath( const Util::String& name, const Util::AssetPath& value )
{
	String s;
	s.SetAssetPath(value);
	this->SetString( name, s);
}
//------------------------------------------------------------------------------
/**
*/
void 
XmlWriter::SetFloat2(const Util::String& name, const Math::float2& value)
{       
    String s;
    s.SetFloat2(value);
    this->SetString(name, s);
}

//------------------------------------------------------------------------------
/**
*/
void 
	XmlWriter::SetFloat3(const Util::String& name, const Math::float3& value)
{       
	String s;
	s.SetFloat3(value);
	this->SetString(name, s);
}

} // namespace IO