1 /*
   2  * Copyright (c) 1998, 2017, 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 /**
  27  * Provides user interface objects that combine two or more look and feels. When
  28  * a component asks for its UI, this look and feel returns a multiplexing UI
  29  * that handles all communications with both the default look and feel and one
  30  * or more auxiliary look and feels. For example, if a user combines an
  31  * auxiliary audio look and feel with the Motif look and feel, the
  32  * {@code JButton.getUI} method would return an instance of
  33  * {@code MultiButtonUI}, which would handle both a {@code MotifButtonUI} and an
  34  * {@code AudioButtonUI}.
  35  * <p>
  36  * For more information, see
  37  * <a href="doc-files/multi_tsc.html" target="_top">
  38  *     Using the Multiplexing Look and Feel.</a>
  39  * <p>
  40  * <strong>Note:</strong>
  41  * Most of the Swing API is <em>not</em> thread safe. For details, see
  42  * <a
  43  * href="http://docs.oracle.com/javase/tutorial/uiswing/concurrency/index.html"
  44  * target="_top">Concurrency in Swing</a>,
  45  * a section in
  46  * <em><a href="http://docs.oracle.com/javase/tutorial/"
  47  * target="_top">The Java Tutorial</a></em>.
  48  *
  49  * @since 1.2
  50  * @serial exclude
  51  */
  52 package javax.swing.plaf.multi;