| /* |
| * Copyright (c) 1998, 2010, 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.metal; |
| |
| import javax.swing.*; |
| import javax.swing.event.*; |
| import javax.swing.border.*; |
| import javax.swing.plaf.*; |
| import javax.swing.plaf.basic.*; |
| |
| import java.awt.*; |
| import java.beans.*; |
| import java.awt.event.*; |
| |
| |
| /** |
| * A Metal L&F implementation of ScrollPaneUI. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is |
| * appropriate for short term storage or RMI between applications running |
| * the same version of Swing. As of 1.4, support for long term storage |
| * of all JavaBeans<sup><font size="-2">TM</font></sup> |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| * |
| * @author Steve Wilson |
| */ |
| public class MetalScrollPaneUI extends BasicScrollPaneUI |
| { |
| |
| private PropertyChangeListener scrollBarSwapListener; |
| |
| public static ComponentUI createUI(JComponent x) { |
| return new MetalScrollPaneUI(); |
| } |
| |
| public void installUI(JComponent c) { |
| |
| super.installUI(c); |
| |
| JScrollPane sp = (JScrollPane)c; |
| updateScrollbarsFreeStanding(); |
| } |
| |
| public void uninstallUI(JComponent c) { |
| super.uninstallUI(c); |
| |
| JScrollPane sp = (JScrollPane)c; |
| JScrollBar hsb = sp.getHorizontalScrollBar(); |
| JScrollBar vsb = sp.getVerticalScrollBar(); |
| if (hsb != null) { |
| hsb.putClientProperty( MetalScrollBarUI.FREE_STANDING_PROP, null); |
| } |
| if (vsb != null) { |
| vsb.putClientProperty( MetalScrollBarUI.FREE_STANDING_PROP, null); |
| } |
| } |
| |
| public void installListeners(JScrollPane scrollPane) { |
| super.installListeners(scrollPane); |
| scrollBarSwapListener = createScrollBarSwapListener(); |
| scrollPane.addPropertyChangeListener(scrollBarSwapListener); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected void uninstallListeners(JComponent c) { |
| super.uninstallListeners(c); |
| c.removePropertyChangeListener(scrollBarSwapListener); |
| } |
| |
| /** |
| * @deprecated - Replaced by {@link #uninstallListeners(JComponent)} |
| */ |
| @Deprecated |
| public void uninstallListeners(JScrollPane scrollPane) { |
| super.uninstallListeners(scrollPane); |
| scrollPane.removePropertyChangeListener(scrollBarSwapListener); |
| } |
| |
| /** |
| * If the border of the scrollpane is an instance of |
| * <code>MetalBorders.ScrollPaneBorder</code>, the client property |
| * <code>FREE_STANDING_PROP</code> of the scrollbars |
| * is set to false, otherwise it is set to true. |
| */ |
| private void updateScrollbarsFreeStanding() { |
| if (scrollpane == null) { |
| return; |
| } |
| Border border = scrollpane.getBorder(); |
| Object value; |
| |
| if (border instanceof MetalBorders.ScrollPaneBorder) { |
| value = Boolean.FALSE; |
| } |
| else { |
| value = Boolean.TRUE; |
| } |
| JScrollBar sb = scrollpane.getHorizontalScrollBar(); |
| if (sb != null) { |
| sb.putClientProperty |
| (MetalScrollBarUI.FREE_STANDING_PROP, value); |
| } |
| sb = scrollpane.getVerticalScrollBar(); |
| if (sb != null) { |
| sb.putClientProperty |
| (MetalScrollBarUI.FREE_STANDING_PROP, value); |
| } |
| } |
| |
| protected PropertyChangeListener createScrollBarSwapListener() { |
| return new PropertyChangeListener() { |
| public void propertyChange(PropertyChangeEvent e) { |
| String propertyName = e.getPropertyName(); |
| if (propertyName.equals("verticalScrollBar") || |
| propertyName.equals("horizontalScrollBar")) { |
| JScrollBar oldSB = (JScrollBar)e.getOldValue(); |
| if (oldSB != null) { |
| oldSB.putClientProperty( |
| MetalScrollBarUI.FREE_STANDING_PROP, null); |
| } |
| JScrollBar newSB = (JScrollBar)e.getNewValue(); |
| if (newSB != null) { |
| newSB.putClientProperty( |
| MetalScrollBarUI.FREE_STANDING_PROP, |
| Boolean.FALSE); |
| } |
| } |
| else if ("border".equals(propertyName)) { |
| updateScrollbarsFreeStanding(); |
| } |
| }}; |
| } |
| |
| } |