/*************************************************************************
*
* $RCSfile: ResourceViewer.java,v $
*
* $Revision: 1.1.1.1 $
*
* last change: $Author: hr $ $Date: 2000/09/18 17:24:28 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
package com.sun.star.lib.sandbox;
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.List;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Enumeration;
import java.util.Observable;
import java.util.Observer;
public class ResourceViewer extends Frame implements Observer {
List list;
boolean refill;
public ResourceViewer() {
super("ResourceViewer");
list = new List();
setLayout(new BorderLayout());
add("Center", list);
Button clearCashButton = new Button("clear the cache");
clearCashButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
WeakTable.clear();
}
});
add("South", clearCashButton);
setSize(500, 200);
refill = true;
WeakTable.AddObserver(this);
setVisible(true);
}
void refresh() {
list.removeAll();
Enumeration elements = WeakTable.elements();
while(elements.hasMoreElements()) {
WeakRef weakRef = ((WeakEntry)elements.nextElement()).weakRef;
list.add(weakRef.getRefCount() + " " + weakRef.getKey().toString());
}
}
public void update(Observable observable, Object arg) {
refill = true;
repaint(500);
}
public void paint(Graphics g) {
if(refill) {
refill = false;
refresh();
}
super.paint(g);
}
}