#pragma	   once

#include <toolkit/khash.h>
//#include "KUIUtil.h"
class KUIWnd;
class KUIFactory 
{
public:
	typedef KUIWnd* (*WndCreateFn)();

	static KUIFactory* GetInstance()
	{
		static KUIFactory obj;
		return &obj;
	}

	bool RegisterCreator(WndCreateFn fn, LPCSTR lpszClassName)
	{
		WndCreateFn find;

		if( true == m_hashCreateTable.lookup(lpszClassName,find) )
		{
			assert(false && "Register Same Class Name Error");
			return false;
		}

		m_hashCreateTable.add(lpszClassName, fn);
		return true;
	}

	bool UnRegisterCreatetor(LPCSTR lpszClassName)
	{
		return m_hashCreateTable.erase(lpszClassName);
	}
	bool IsRegister(LPCSTR lpszName)
	{
		WndCreateFn find;
		return m_hashCreateTable.lookup(lpszName,find);
	}

	KUIWnd* CreateObject(LPCSTR lpszClassName)
	{
		WndCreateFn find;

		if( false == m_hashCreateTable.lookup( lpszClassName,find) )
		{
#ifndef NDEBUG
#ifndef _RELEASE
			char buff[128];
			sprintf(buff, "Create Wnd invalid class name ( %s )", lpszClassName);
			MessageBox( NULL, buff, "Error", MB_OK);
#endif
#endif
			return NULL;
		}

		return find();
	}
protected:
	KHash<WndCreateFn, hashPr_string > m_hashCreateTable;		
};