/*******************************************************************************
* Copyright (c) 2006 Oracle Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Oracle Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.bpel.common.ui.details;
import org.eclipse.swt.widgets.Button;
/**
* @author Michal Chmielewski (michal.chmielewski@oracle.com)
* @date Jul 27, 2007
*
*/
@SuppressWarnings("nls")
public class RadioButtonIValue implements IValue {
/**
* The value key used to lookup the assigned value of
* a radio button via getData() on the widget.
*/
static public final String VALUE = "value";
/** Unset object value, equivalent to null */
static public final Object UNSET_VALUE = new Object();
Button[] fWidgets;
/**
* @param args
*/
public RadioButtonIValue ( Button ... args ) {
fWidgets = args;
}
/**
* @see org.eclipse.bpel.common.ui.details.IValue#get()
*/
@SuppressWarnings("boxing")
public Object get() {
for(Button n : fWidgets) {
if (n.getSelection()) {
Object value = n.getData(VALUE);
return value == UNSET_VALUE ? null : value;
}
}
return null;
}
/**
* @see org.eclipse.bpel.common.ui.details.IValue#set(java.lang.Object)
*/
@SuppressWarnings({ "nls", "boxing" })
public void set ( Object object ) {
for (Button n : fWidgets) {
Object v = n.getData(VALUE);
n.setSelection( v.equals(object) || (v == UNSET_VALUE && object == null) );
}
}
}