Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/ui/HistoryComboBox.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/ui/HistoryComboBox.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,66 @@ +/* + * Copyright 2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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); + } + } +}