| /* MetalScrollPaneUI.java |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package javax.swing.plaf.metal; |
| |
| import java.beans.PropertyChangeListener; |
| |
| import javax.swing.JComponent; |
| import javax.swing.JScrollBar; |
| import javax.swing.JScrollPane; |
| import javax.swing.plaf.ComponentUI; |
| import javax.swing.plaf.basic.BasicScrollPaneUI; |
| |
| /** |
| * A UI delegate for the {@link JScrollPane} component. |
| */ |
| public class MetalScrollPaneUI |
| extends BasicScrollPaneUI |
| { |
| /** |
| * Constructs a new instance of <code>MetalScrollPaneUI</code>. |
| */ |
| public MetalScrollPaneUI() |
| { |
| super(); |
| } |
| |
| /** |
| * Returns a shared instance of <code>MetalScrollPaneUI</code>. |
| * |
| * @param component the component for which we return an UI instance |
| * |
| * @return A shared instance of <code>MetalScrollPaneUI</code>. |
| */ |
| public static ComponentUI createUI(JComponent component) |
| { |
| return new MetalScrollPaneUI(); |
| } |
| |
| /** |
| * Configures the specified component appropriate for the look and feel. |
| * This method is invoked when the ComponentUI instance is being installed |
| * as the UI delegate on the specified component. This method should |
| * completely configure the component for the look and feel, |
| * including the following: |
| * 1. Install any default property values for color, fonts, borders, |
| * icons, opacity, etc. on the component. Whenever possible, property |
| * values initialized by the client program should not be overridden. |
| * 2. Install a LayoutManager on the component if necessary. |
| * 3. Create/add any required sub-components to the component. |
| * 4. Create/install event listeners on the component. |
| * 5. Create/install a PropertyChangeListener on the component in order |
| * to detect and respond to component property changes appropriately. |
| * 6. Install keyboard UI (mnemonics, traversal, etc.) on the component. |
| * 7. Initialize any appropriate instance data. |
| * |
| * @param c - the component to install the ui on |
| */ |
| public void installUI(JComponent c) |
| { |
| super.installUI(c); |
| JScrollBar hsb = scrollpane.getHorizontalScrollBar(); |
| hsb.putClientProperty(MetalScrollBarUI.FREE_STANDING_PROP, Boolean.FALSE); |
| JScrollBar vsb = scrollpane.getVerticalScrollBar(); |
| vsb.putClientProperty(MetalScrollBarUI.FREE_STANDING_PROP, Boolean.FALSE); |
| } |
| |
| /** |
| * Reverses configuration which was done on the specified component |
| * during installUI. This method is invoked when this UIComponent |
| * instance is being removed as the UI delegate for the specified |
| * component. This method should undo the configuration performed in |
| * installUI, being careful to leave the JComponent instance in a |
| * clean state (no extraneous listeners, look-and-feel-specific property |
| * objects, etc.). This should include the following: |
| * 1. Remove any UI-set borders from the component. |
| * 2. Remove any UI-set layout managers on the component. |
| * 3. Remove any UI-added sub-components from the component. |
| * 4. Remove any UI-added event/property listeners from the component. |
| * 5. Remove any UI-installed keyboard UI from the component. |
| * 6. Nullify any allocated instance data objects to allow for GC. |
| * |
| * @param c - the component to uninstall the ui on |
| */ |
| public void uninstallUI(JComponent c) |
| { |
| JScrollBar hsb = scrollpane.getHorizontalScrollBar(); |
| hsb.putClientProperty(MetalScrollBarUI.FREE_STANDING_PROP, null); |
| JScrollBar vsb = scrollpane.getVerticalScrollBar(); |
| vsb.putClientProperty(MetalScrollBarUI.FREE_STANDING_PROP, null); |
| super.uninstallUI(c); |
| } |
| |
| /** |
| * Installs listeners on scrollPane |
| * |
| * @param scrollPane - the component to install the listeners on |
| */ |
| public void installListeners(JScrollPane scrollPane) |
| { |
| super.installListeners(scrollPane); |
| } |
| |
| /** |
| * Uninstalls listeners on scrollPane |
| * |
| * @param scrollPane - the component to uninstall the listeners on |
| */ |
| public void uninstallListeners(JScrollPane scrollPane) |
| { |
| super.uninstallListeners(scrollPane); |
| } |
| |
| /** |
| * TODO |
| * |
| * @return TODO |
| */ |
| protected PropertyChangeListener createScrollBarSwapListener() |
| { |
| // FIXME: Anything else to do here? |
| return super.createPropertyChangeListener(); |
| } |
| } |