73 lines
2.0 KiB
Java
73 lines
2.0 KiB
Java
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
package netscape.plugin.composer.mapedit;
|
|
|
|
|
|
import java.awt.*;
|
|
import java.util.Vector;
|
|
|
|
|
|
public class IconCheckBoxGroup {
|
|
void stateChanged(IconCheckBox box,boolean state) {
|
|
// Prevent recursion.
|
|
if (changingState) {
|
|
return;
|
|
}
|
|
changingState = true;
|
|
|
|
int index = items.indexOf(box);
|
|
Debug.assert(index != -1,"bad index");
|
|
|
|
if (index == active) {
|
|
// Active box is trying to turn itself off.
|
|
// I don't think so...
|
|
if (state == false) {
|
|
box.setState(true);
|
|
}
|
|
}
|
|
else if (state == true) {
|
|
// Some other box is turned on, turn off formerly active one.
|
|
try {
|
|
IconCheckBox activeBox = (IconCheckBox)items.elementAt(active);
|
|
activeBox.setState(false);
|
|
active = index;
|
|
} catch (ArrayIndexOutOfBoundsException e) {}
|
|
}
|
|
|
|
changingState = false;
|
|
}
|
|
|
|
|
|
// Called by the IconCheckBox when it is created.
|
|
void add(IconCheckBox box) {
|
|
items.addElement(box);
|
|
if (box.getState()) {
|
|
Debug.assert(active == -1,"more than one active box");
|
|
active = items.size() - 1; // The box just added.
|
|
}
|
|
}
|
|
|
|
|
|
// Index of the active CheckBox.
|
|
int active = -1;
|
|
Vector items = new Vector(); // of IconCheckBox
|
|
|
|
boolean changingState = false;
|
|
}
|