/*********************************************

	Copyright © 2001 Jason Lamport.
	All rights reserved.

----------------------
*******************************************/

package com.strangelight.mactoolbox;

import com.apple.jdirect.*;
import com.apple.mrj.jdirect.*;

/**
 *	Implements JDirect's HandleStruct, using Mac toolbox calls to handle
 *	getSize() (Note that J_HandleStruct caches the return value of the 
 *	toolbox call.  If some other object resizes the handle, getSize()
 *	will subsequently return an incorrect value.)
 *	
 */
public class J_HandleStruct extends HandleStruct {

	public J_HandleStruct(int new_handle) {
		super( new_handle );
		handle_size = -1;
	}

	public int getSize() {
		if ( 
			( handle_size == -1 )
			&& ( handle != 0 )
		) {
			handle_size = MemoryFunctions.GetHandleSize( handle );
		}
		return handle_size;
	}
	
	protected int handle_size;
	
}