xmlbase.h

Xerces-C++应用实例

// ================================================================================
//
//    author:         Rainer Schuster
//
//    created:        09.03.2005 10:11:08
//
//    filename:       xmlbase.h
//
//    You are allowed to use this code freely. Modify and/or redistribute it. This code is as it is.
//    I'm not responsible for any errors or damage. Use it at your own risk.



#ifndef _DCC_XML_BASE_H_INCLUDED
#define _DCC_XML_BASE_H_INCLUDED

#pragma warning(disable: 4786)

#include "xmltools.h"
#include <xercesc/parsers/XercesDOMParser.hpp>
#include <xercesc/dom/DOMErrorHandler.hpp>
#include <xercesc/util/XMLString.hpp>

#include <vector>
#include <map>

// =================
class CXMLGridRow;

// =================
typedef std::map		<int, CString>		CColsMap;
typedef std::pair		<int, CString>		CColsPair;
typedef std::map		<int, CXMLGridRow>	CXMLGridData;
typedef std::pair		<int, CXMLGridRow>	CXMLGridDataPair;
typedef std::map	<CString, LPPICTURE> CPictureMap;
typedef std::pair	<CString, LPPICTURE> CPicturePair;


// =================
XERCES_CPP_NAMESPACE_USE


// ================= CXMLGridRow
class CXMLGridRow
{
public:
	long		m_lIndex;
	CColsMap	*m_pCols;

	CXMLGridRow()
	{
		m_pCols = new CColsMap();
		m_lIndex = -1;
	};

	CXMLGridRow(const CXMLGridRow &src)
	{
		m_lIndex = src.m_lIndex;
		m_pCols = new CColsMap( *(src.m_pCols));
	};

	~CXMLGridRow()
	{
		if( m_pCols )
		{
			m_pCols->clear();
			delete m_pCols;
		}
		m_pCols = NULL;
	};

	void Insert( const char *lpcszEntry)
	{
		(*m_pCols)[m_pCols->size()] = _T(lpcszEntry);
	};

	void Insert( int iIdx, const char *lpcszEntry)
	{
		(*m_pCols)[iIdx] = _T(lpcszEntry);
	};
};



// ================= CXMLBase
class CXMLBase
{
public:
	bool Init(const char* lpcszXMLFile, const char* lpcszID);

protected:
	virtual void Parse( DOMDocument *doc, const char* lpcszID)=0;
};



// ================= CXMLGrid
class CXMLGrid : public CXMLBase
{
public:
	CXMLGrid(){ m_lRowCount = 0; };
	~CXMLGrid(){};

	virtual void Parse				( DOMDocument	*doc, const char* lpcszID);
	virtual void ParseRow			( DOMNode		*node);
	virtual void ParseCol			( DOMNode *node, CXMLGridRow &row);
	virtual void ParseAttributes	( DOMNode	*node);
	virtual void ParseHeader		( DOMNode	*node);
	virtual void OnUnknownAttribute	( DOMNode	*node);

	CXMLGridData	m_rows;

protected:
	CXMLGridRow		m_header;
	long			m_lRowCount;
	CString			m_strLabel;
	CString			m_strID;
	CString			m_strIcons;
};

// ============== codesnippet from xerces samples
// ---------------------------------------------------------------------------
//  Simple error handler deriviative to install on parser
// ---------------------------------------------------------------------------
class XMLBaseErrorHandler : public DOMErrorHandler
{
public:
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    XMLBaseErrorHandler ();
    ~XMLBaseErrorHandler ();


    // -----------------------------------------------------------------------
    //  Getter methods
    // -----------------------------------------------------------------------
    bool getSawErrors() const;


    // -----------------------------------------------------------------------
    //  Implementation of the DOM ErrorHandler interface
    // -----------------------------------------------------------------------
    bool handleError(const DOMError& domError);
    void resetErrors();


private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    XMLBaseErrorHandler (const XMLBaseErrorHandler &);
    void operator=(const XMLBaseErrorHandler &);


    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fSawErrors
    //      This is set if we get any errors, and is queryable via a getter
    //      method. Its used by the main code to suppress output if there are
    //      errors.
    // -----------------------------------------------------------------------
    bool    fSawErrors;
};

inline bool XMLBaseErrorHandler ::getSawErrors() const
{
    return fSawErrors;
}

BOOL LoadIcon( CString strIcon2Load, CString strPath, CPictureMap *map);
BOOL LoadPictureFile(LPCTSTR szFile, LPPICTURE* pgpPicture);

#endif //_DCC_XML_BASE_H_INCLUDED