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/*******************************************************************************
* Copyright (c) 2007 Oracle. 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 - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.utility.internal.swing;
import javax.swing.Icon;
import javax.swing.JComboBox;
import javax.swing.JOptionPane;
import javax.swing.ListModel;
/**
* This implementation of ListChooser.Browser uses a
* JOptionPane to prompt the user for the selection. Subclasses
* can change the dialog's title, message, and/or icon.
*/
public class SimpleListBrowser
implements ListChooser.ListBrowser
{
/** Default constructor */
protected SimpleListBrowser() {
super();
}
/**
* Prompt the user using a JOptionPane.
*/
public void browse(ListChooser chooser) {
Object selection =
JOptionPane.showInputDialog(
chooser,
this.message(chooser),
this.title(chooser),
this.messageType(chooser),
this.icon(chooser),
this.selectionValues(chooser),
this.initialSelectionValue(chooser)
);
if (selection != null) {
chooser.getModel().setSelectedItem(selection);
}
}
protected Object message(JComboBox comboBox) {
return null;
}
protected String title(JComboBox comboBox) {
return null;
}
protected int messageType(JComboBox comboBox) {
return JOptionPane.QUESTION_MESSAGE;
}
protected Icon icon(JComboBox comboBox) {
return null;
}
protected Object[] selectionValues(JComboBox comboBox) {
return this.convertToArray(comboBox.getModel());
}
protected Object initialSelectionValue(JComboBox comboBox) {
return comboBox.getModel().getSelectedItem();
}
/**
* Convert the list of objects in the specified list model
* into an array.
*/
protected Object[] convertToArray(ListModel model) {
int size = model.getSize();
Object[] result = new Object[size];
for (int i = 0; i < size; i++) {
result[i] = model.getElementAt(i);
}
return result;
}
}
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