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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 | } | ||