genesis-3d_engine/Engine/foundation/io/xmlreader.h

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/****************************************************************************
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.
****************************************************************************/
#pragma once
//------------------------------------------------------------------------------
/**
@class IO::XmlReader
Reads XML formatted data with random access from a stream using
TinyXML as backend. The XML document is represented as a tree of
nodes, which can be navigated and queried.
*/
#include "io/streamreader.h"
#include "math/float4.h"
#include "math/float2.h"
#include "math/matrix44.h"
#include "util/assetpath.h"
#include "tinyxml/tinyxml.h"
#include "util/scriptbind.h"
//------------------------------------------------------------------------------
namespace IO
{
class XmlReader : public StreamReader
{
__DeclareClass(XmlReader);
__ScriptBind
public:
/// constructor
XmlReader();
/// destructor
virtual ~XmlReader();
/// begin reading from the stream
virtual bool Open();
/// end reading from the stream
virtual void Close();
/// return true if node exists
bool HasNode(const Util::String& path) const;
/// get short name of current node
Util::String GetCurrentNodeName() const;
/// get path to current node
Util::String GetCurrentNodePath() const;
/// returns the line number of the current node
int GetCurrentNodeLineNumber() const;
/// set current node as path
void SetToNode(const Util::String& path);
/// set current node to first child node, return false if no child exists
bool SetToFirstChild(const Util::String& name = "");
/// set current node to next sibling node, return false if no more sibling exists
bool SetToNextChild(const Util::String& name = "");
/// set current node to parent, return false if no parent exists
bool SetToParent();
/// return true if matching attribute exists on current node
bool HasAttr(const char* attr) const;
/// return names of all attrs on current node
Util::Array<Util::String> GetAttrs() const;
/// return true if current node has embedded content
bool HasContent() const;
/// return embedded content of current node
Util::String GetContent() const;
/// get string attribute value from current node
Util::String GetString(const char* attr) const;
/// get char* attribute value from current node and step fword
const char* GetString_forward(const char* name );
/// get bool attribute value from current node
bool GetBool(const char* attr) const;
/// get int attribute value from current node
int GetInt(const char* attr) const;
/// get float attribute value from current node
float GetFloat(const char* attr) const;
/// get float2 attribute value from current node
Math::float2 GetFloat2(const char* attr) const;
/// get float4 attribute value from current node
Math::float4 GetFloat4(const char* attr) const;
/// get float4 attribute value from current node
Math::float3 GetFloat3(const char* attr) const;
/// get matrix44 attribute value from current node
Math::matrix44 GetMatrix44(const char* attr) const;
/// get assetpath attribute value from current node
Util::AssetPath GetAssetPath(const char* attr) const;
/// generic getter for extension types
template<typename T> T Get(const char* attr) const;
/// get optional string attribute value from current node
Util::String GetOptString(const char* attr, const Util::String& defaultValue) const;
/// get optional bool attribute value from current node
bool GetOptBool(const char* attr, bool defaultValue) const;
/// get optional int attribute value from current node
int GetOptInt(const char* attr, int defaultValue) const;
/// get optional float attribute value from current node
float GetOptFloat(const char* attr, float defaultValue) const;
/// get float2 attribute value from current node
Math::float2 GetOptFloat2(const char* attr, const Math::float2& defaultValue) const;
/// get optional float4 attribute value from current node
Math::float4 GetOptFloat4(const char* attr, const Math::float4& defaultValue) const;
/// get optional matrix44 attribute value from current node
Math::matrix44 GetOptMatrix44(const char* attr, const Math::matrix44& defaultValue) const;
TiXmlElement* GetCurrentNode(void) const;
void SetCurrentNode( TiXmlElement* node );
private:
/// find a node by path, handles relativ paths as well
TiXmlNode* FindNode(const Util::String& path) const;
/// static helper object for TinyXml-Initialization at application startup
class TinyXmlInitHelper
{
public:
/// constructor
TinyXmlInitHelper()
{
TiXmlBase::SetCondenseWhiteSpace(true);
}
};
static TinyXmlInitHelper initTinyXml;
TiXmlDocument* xmlDocument;
TiXmlElement* curNode;
protected:
};
//------------------------------------------------------------------------
inline
TiXmlElement* XmlReader::GetCurrentNode(void) const
{
return curNode;
}
//------------------------------------------------------------------------
inline
void
XmlReader::SetCurrentNode(TiXmlElement* node)
{
curNode = node;
}
} // namespace IO
//------------------------------------------------------------------------------