swfdictionary.java

java和flash混合编程

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 * Copyright (c) 2004, David N. Main, All rights reserved.
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package org.javaswf.swf.model;
import java.util.HashMap;
import java.util.Map;


/**
 * A SWF symbol dictionary
 * 
 * @author nick
 */
public class SWFDictionary {
	
	private Map symbols = new HashMap(); //Integer id -> SWFSymbol
	
	/**
	 * Get a symbol.
	 * @param id the symbol id
	 * @return null if the id does not exist
	 */
	public SWFSymbol getSymbol( int id ) {
		return (SWFSymbol) symbols.get( new Integer( id ));
	}
	
	/**
	 * Define a symbol.
	 * @param id the id
	 * @param symbol the symbol to define
	 */
	public void defineSymbol( int id, SWFSymbol symbol ) {
		symbols.put( new Integer( id ), symbol );
	}

	/**
	 * Remove a symbol and return it.
	 * @param id the id to remove
	 * @return null if no such symbol exists
	 */
	public SWFSymbol removeSymbol( int id ) {
		return (SWFSymbol) symbols.remove( new Integer( id ));
	}
}