selectionsupport.java

来自「打印管理程序,测试完全通过.windows开发环境.」· Java 代码 · 共 32 行

/*
    $Author: $
    $Date: $
    $Revision: $
    $NoKeywords: $
*/
package jp.co.ntl.awt.event;

import java.util.Vector;

public class SelectionSupport {
    private Vector listeners = new Vector();
    
    public void addSelectionListener(SelectionListener sl) {
        listeners.addElement(sl);
    }
    
    public void removeSelectionListener(SelectionListener sl) {
        listeners.removeElement(sl);
    }
    
    public void fireSelectionEvent(SelectionEvent se) {
        Vector v;
        synchronized(this) {
            v = (Vector)listeners.clone();
        }
        for (int i = 0; i < v.size(); i++) {
            SelectionListener sl = (SelectionListener)v.elementAt(i);
            sl.selectionChanged(se);
        }        
    }
}