pjs/grendel/ui/BiffIcon.java

85 строки
2.3 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Will Scullin <scullin@netscape.com>, 19 Sep 1997.
*/
package grendel.ui;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import grendel.storage.MailDrop;
/**
* This is a simple biff label. It watches the BiffThread
* to update its state.
*/
class BiffIcon extends JLabel implements ChangeListener {
BiffThread fThread;
static Icon fIconUnknown;
static Icon fIconNew;
static Icon fIconNone;
public BiffIcon() {
if (fIconUnknown == null) {
fIconUnknown =
new ImageIcon(getClass().getResource("images/biffUnknown.gif"));
fIconNew =
new ImageIcon(getClass().getResource("images/biffNew.gif"));
fIconNone =
new ImageIcon(getClass().getResource("images/biffNone.gif"));
}
setText(null); // Necessary for icon size to be used for preferred size
setBiffState(MailDrop.UNKNOWN);
fThread = BiffThread.Get();
fThread.addChangeListener(this);
setBiffState(fThread.getBiffState());
}
public void dispose() {
fThread.removeChangeListener(this);
}
public void stateChanged(ChangeEvent aEvent) {
setBiffState(fThread.getBiffState());
repaint();
}
void setBiffState(int aState) {
switch (aState) {
case MailDrop.NEW:
setIcon(fIconNew);
break;
case MailDrop.NONE:
setIcon(fIconNone);
break;
case MailDrop.UNKNOWN:
setIcon(fIconUnknown);
break;
}
}
}