#ifndef _DLGITEMS_H
#define _DLGITEMS_H

#include "vector"

#define BEGIN_ENUM { for(int e=0; e<lst.size(); e++ )
#define END_ENUM }

class dlgitems
{
	typedef std::vector<UINT> id_list;
	id_list lst;
	CWnd* o;

public:
	dlgitems(CWnd *owner):o(owner) {}
	void add(UINT id)
	{
		BEGIN_ENUM
		{
			if( lst[e] == id )
				return;
		}
		END_ENUM
		lst.push_back(id);
	}
	void remove(UINT id)
	{
		BEGIN_ENUM
		{
			if( lst[e] == id )
			{
				lst.erase(lst.begin()+e);
				break;
			}
		}
		END_ENUM
	}
	
	void enable()
	{
		BEGIN_ENUM
		{
			CWnd* p = o->GetDlgItem(lst[e]);
			if( p )
				p->EnableWindow(TRUE);
		}
		END_ENUM
	}
	void disable()
	{
		BEGIN_ENUM
		{
			CWnd* p = o->GetDlgItem(lst[e]);
			if( p )
				p->EnableWindow(FALSE);
		}
		END_ENUM
	}

	void show()
	{
		BEGIN_ENUM
		{
			CWnd* p = o->GetDlgItem(lst[e]);
			if( p )
				p->ShowWindow(TRUE);
		}
		END_ENUM
	}
	void hide()
	{
		BEGIN_ENUM
		{
			CWnd* p = o->GetDlgItem(lst[e]);
			if( p )
				p->ShowWindow(FALSE);
		}
		END_ENUM
	}
};


static void disable(HWND wnd){	EnableWindow(wnd, FALSE);}
static void enable(HWND wnd){	EnableWindow(wnd, TRUE);}

template<class T>
static void enum_dlgitems(HWND owner, T op)
{
	if( !IsWindow(owner) )
		return;

	HWND sub = GetWindow(owner, GW_CHILD);
	while( IsWindow(sub) )
	{
		HWND subsub = GetWindow(sub, GW_CHILD);
		if( IsWindow(subsub) )
			enum_dlgitems(sub, op);

		op(sub);

		sub = GetWindow(sub, GW_HWNDNEXT);
	}
}
#endif	// _DLGITEMS_H