1 /* 2 * Copyright (c) 1997, 2014, 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; 27 28 import javax.swing.JComboBox; 29 30 /** 31 * Pluggable look and feel interface for JComboBox. 32 * 33 * @author Arnaud Weber 34 * @author Tom Santos 35 */ 36 public abstract class ComboBoxUI extends ComponentUI { 37 38 /** 39 * Set the visibility of the popup 40 */ 41 public abstract void setPopupVisible( JComboBox<?> c, boolean v ); 42 43 /** 44 * Determine the visibility of the popup 45 */ 46 public abstract boolean isPopupVisible( JComboBox<?> c ); 47 48 /** 49 * Determine whether or not the combo box itself is traversable 50 */ 51 public abstract boolean isFocusTraversable( JComboBox<?> c ); 52 }