#pragma once

class GlwUGRampDataManage;
class GlwPlaceTreeDataManage;
class CLandScapeStyle;
class CCoordGridDataManage;

template <class T>
void deletePtr (T* &ptr)
{
	if (!ptr) return;
	delete ptr;
	ptr = NULL;
};
#define DECLARE_GLOBAL_VARIABLE(class_name)\
	private:\
	class_name *m_p##class_name;\
	public:\
	void Set_##class_name(class_name *ptr){m_p##class_name = ptr;}\
	class_name* Get_##class_name(){return m_p##class_name;}

#define CONSTRUCT_GLOBAL_VARIABLE(class_name)\
	m_p##class_name(NULL)

#define DESTRUCT_GLOBAL_VARIABLE(class_name)\
	deletePtr(m_p##class_name);


class GlwGlobalVariable
{
public:
	GlwGlobalVariable(void);
	~GlwGlobalVariable(void);
	DECLARE_GLOBAL_VARIABLE(GlwPlaceTreeDataManage);
	DECLARE_GLOBAL_VARIABLE(CLandScapeStyle);
	DECLARE_GLOBAL_VARIABLE(GlwUGRampDataManage);
	DECLARE_GLOBAL_VARIABLE(CCoordGridDataManage);
};

extern GlwGlobalVariable *pGlobalVariable;

#define GET_GLOBAL_VARIABLE(class_name)\
	pGlobalVariable->Get_##class_name()

#define SET_GLOBAL_VARIABLE(class_name, ptr)\
	pGlobalVariable->Set_##class_name(ptr)