| /* |
| * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.ui; |
| |
| |
| import java.awt.event.*; |
| import javax.swing.*; |
| import javax.swing.event.*; |
| |
| /** Provides an editable text field with history. */ |
| |
| public class HistoryComboBox extends JComboBox { |
| static final int HISTORY_LENGTH = 15; |
| |
| public HistoryComboBox() { |
| setEditable(true); |
| addActionListener(new ActionListener() { |
| public void actionPerformed(ActionEvent e) { |
| Object text = getSelectedItem(); |
| if (text != null) { |
| setText((String)text); |
| } |
| } |
| }); |
| } |
| |
| public String getText() { |
| Object text = getSelectedItem(); |
| if (text == null) { |
| return ""; |
| } |
| return (String)text; |
| } |
| |
| public void setText(String text) { |
| removeItem(text); |
| insertItemAt(text, 0); |
| setSelectedItem(text); |
| int length = getModel().getSize(); |
| while (length > HISTORY_LENGTH) { |
| removeItemAt(--length); |
| } |
| } |
| } |