| /* |
| * Copyright (c) 1997, 2005, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 javax.swing.plaf.basic; |
| |
| import javax.swing.*; |
| import javax.swing.event.*; |
| import javax.swing.border.*; |
| |
| import java.awt.*; |
| |
| import java.io.Serializable; |
| |
| |
| /** |
| * ComboBox renderer |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is |
| * appropriate for short term storage or RMI between applications running |
| * the same version of Swing. As of 1.4, support for long term storage |
| * of all JavaBeans<sup><font size="-2">TM</font></sup> |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| * |
| * @author Arnaud Weber |
| */ |
| public class BasicComboBoxRenderer extends JLabel |
| implements ListCellRenderer, Serializable { |
| |
| /** |
| * An empty <code>Border</code>. This field might not be used. To change the |
| * <code>Border</code> used by this renderer directly set it using |
| * the <code>setBorder</code> method. |
| */ |
| protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1); |
| private final static Border SAFE_NO_FOCUS_BORDER = new EmptyBorder(1, 1, 1, 1); |
| |
| public BasicComboBoxRenderer() { |
| super(); |
| setOpaque(true); |
| setBorder(getNoFocusBorder()); |
| } |
| |
| private static Border getNoFocusBorder() { |
| if (System.getSecurityManager() != null) { |
| return SAFE_NO_FOCUS_BORDER; |
| } else { |
| return noFocusBorder; |
| } |
| } |
| |
| public Dimension getPreferredSize() { |
| Dimension size; |
| |
| if ((this.getText() == null) || (this.getText().equals( "" ))) { |
| setText( " " ); |
| size = super.getPreferredSize(); |
| setText( "" ); |
| } |
| else { |
| size = super.getPreferredSize(); |
| } |
| |
| return size; |
| } |
| |
| public Component getListCellRendererComponent( |
| JList list, |
| Object value, |
| int index, |
| boolean isSelected, |
| boolean cellHasFocus) |
| { |
| |
| /**if (isSelected) { |
| setBackground(UIManager.getColor("ComboBox.selectionBackground")); |
| setForeground(UIManager.getColor("ComboBox.selectionForeground")); |
| } else { |
| setBackground(UIManager.getColor("ComboBox.background")); |
| setForeground(UIManager.getColor("ComboBox.foreground")); |
| }**/ |
| |
| if (isSelected) { |
| setBackground(list.getSelectionBackground()); |
| setForeground(list.getSelectionForeground()); |
| } |
| else { |
| setBackground(list.getBackground()); |
| setForeground(list.getForeground()); |
| } |
| |
| setFont(list.getFont()); |
| |
| if (value instanceof Icon) { |
| setIcon((Icon)value); |
| } |
| else { |
| setText((value == null) ? "" : value.toString()); |
| } |
| return this; |
| } |
| |
| |
| /** |
| * A subclass of BasicComboBoxRenderer that implements UIResource. |
| * BasicComboBoxRenderer doesn't implement UIResource |
| * directly so that applications can safely override the |
| * cellRenderer property with BasicListCellRenderer subclasses. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is |
| * appropriate for short term storage or RMI between applications running |
| * the same version of Swing. As of 1.4, support for long term storage |
| * of all JavaBeans<sup><font size="-2">TM</font></sup> |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| */ |
| public static class UIResource extends BasicComboBoxRenderer implements javax.swing.plaf.UIResource { |
| } |
| } |