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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2001, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package javax.swing.plaf.basic; | |
| 27 | + | |
| 28 | +import sun.awt.AppContext; | |
| 29 | + | |
| 30 | +import javax.swing.*; | |
| 31 | + | |
| 32 | +import java.awt.*; | |
| 33 | +import java.awt.event.*; | |
| 34 | +import javax.swing.plaf.*; | |
| 35 | +import java.io.Serializable; | |
| 36 | + | |
| 37 | + | |
| 38 | +/** | |
| 39 | + * CheckboxUI implementation for BasicCheckboxUI | |
| 40 | + * <p> | |
| 41 | + * <strong>Warning:</strong> | |
| 42 | + * Serialized objects of this class will not be compatible with | |
| 43 | + * future Swing releases. The current serialization support is | |
| 44 | + * appropriate for short term storage or RMI between applications running | |
| 45 | + * the same version of Swing. As of 1.4, support for long term storage | |
| 46 | + * of all JavaBeans<sup><font size="-2">TM</font></sup> | |
| 47 | + * has been added to the <code>java.beans</code> package. | |
| 48 | + * Please see {@link java.beans.XMLEncoder}. | |
| 49 | + * | |
| 50 | + * @author Jeff Dinkins | |
| 51 | + */ | |
| 52 | +public class BasicCheckBoxUI extends BasicRadioButtonUI { | |
| 53 | + | |
| 54 | + private static final Object BASIC_CHECK_BOX_UI_KEY = new Object(); | |
| 55 | + | |
| 56 | + private final static String propertyPrefix = "CheckBox" + "."; | |
| 57 | + | |
| 58 | + // ******************************** | |
| 59 | + // Create PLAF | |
| 60 | + // ******************************** | |
| 61 | + public static ComponentUI createUI(JComponent b) { | |
| 62 | + AppContext appContext = AppContext.getAppContext(); | |
| 63 | + BasicCheckBoxUI checkboxUI = | |
| 64 | + (BasicCheckBoxUI) appContext.get(BASIC_CHECK_BOX_UI_KEY); | |
| 65 | + if (checkboxUI == null) { | |
| 66 | + checkboxUI = new BasicCheckBoxUI(); | |
| 67 | + appContext.put(BASIC_CHECK_BOX_UI_KEY, checkboxUI); | |
| 68 | + } | |
| 69 | + return checkboxUI; | |
| 70 | + } | |
| 71 | + | |
| 72 | + public String getPropertyPrefix() { | |
| 73 | + return propertyPrefix; | |
| 74 | + } | |
| 75 | + | |
| 76 | +} | |