| /* |
| * Copyright (c) 1998, 2014, 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 java.awt.*; |
| import javax.swing.*; |
| import javax.swing.border.*; |
| import javax.swing.plaf.*; |
| import java.awt.*; |
| import java.awt.event.*; |
| |
| |
| /** |
| * BasicViewport implementation |
| * |
| * @author Rich Schiavi |
| */ |
| public class BasicViewportUI extends ViewportUI { |
| |
| // Shared UI object |
| private static ViewportUI viewportUI; |
| |
| /** |
| * Returns an instance of {@code BasicViewportUI}. |
| * |
| * @param c a component |
| * @return an instance of {@code BasicViewportUI} |
| */ |
| public static ComponentUI createUI(JComponent c) { |
| if(viewportUI == null) { |
| viewportUI = new BasicViewportUI(); |
| } |
| return viewportUI; |
| } |
| |
| public void installUI(JComponent c) { |
| super.installUI(c); |
| installDefaults(c); |
| } |
| |
| public void uninstallUI(JComponent c) { |
| uninstallDefaults(c); |
| super.uninstallUI(c); |
| } |
| |
| /** |
| * Installs view port properties. |
| * |
| * @param c a component |
| */ |
| protected void installDefaults(JComponent c) { |
| LookAndFeel.installColorsAndFont(c, |
| "Viewport.background", |
| "Viewport.foreground", |
| "Viewport.font"); |
| LookAndFeel.installProperty(c, "opaque", Boolean.TRUE); |
| } |
| |
| /** |
| * Uninstall view port properties. |
| * |
| * @param c a component |
| */ |
| protected void uninstallDefaults(JComponent c) { |
| } |
| } |