001 /*
002 * $Id: MetalStatusBarUI.java 2405 2007-11-09 14:26:13Z rah003 $
003 *
004 * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
005 * Santa Clara, California 95054, U.S.A. All rights reserved.
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
020 */
021
022 package org.jdesktop.swingx.plaf.metal;
023
024 import java.awt.Color;
025 import java.awt.GradientPaint;
026 import java.awt.Graphics2D;
027 import java.util.List;
028 import javax.swing.JComponent;
029 import javax.swing.UIManager;
030 import javax.swing.plaf.ComponentUI;
031 import org.jdesktop.swingx.JXStatusBar;
032 import org.jdesktop.swingx.plaf.basic.BasicStatusBarUI;
033
034 /**
035 *
036 * @author rbair
037 */
038 public class MetalStatusBarUI extends BasicStatusBarUI {
039
040 /** Creates a new instance of BasicStatusBarUI */
041 public MetalStatusBarUI() {
042 }
043
044 /**
045 * Returns an instance of the UI delegate for the specified component.
046 * Each subclass must provide its own static <code>createUI</code>
047 * method that returns an instance of that UI delegate subclass.
048 * If the UI delegate subclass is stateless, it may return an instance
049 * that is shared by multiple components. If the UI delegate is
050 * stateful, then it should return a new instance per component.
051 * The default implementation of this method throws an error, as it
052 * should never be invoked.
053 */
054 public static ComponentUI createUI(JComponent c) {
055 return new MetalStatusBarUI();
056 }
057
058 @Override
059 protected void paintBackground(Graphics2D g, JXStatusBar bar) {
060 int w = bar.getWidth(); //TODO deal with insets
061 int h = bar.getHeight(); //TODO deal with insets
062
063 //This list is comprised of floats and Colors, which together
064 //constitute the gradient.
065 List<?> gradient = (List<?>) UIManager.get("MenuBar.gradient");
066
067 if (gradient != null && w > 0 && 0 < h) {
068 float ratio1 = ((Number)gradient.get(0)).floatValue();
069 float ratio2 = ((Number)gradient.get(1)).floatValue();
070 Color c1 = (Color)gradient.get(2);
071 Color c2 = (Color)gradient.get(3);
072 Color c3 = (Color)gradient.get(4);
073 int mid = (int)(ratio1 * h);
074 int mid2 = (int)(ratio2 * h);
075 if (mid > 0) {
076 g.setPaint(new GradientPaint((float)0, (float)0, c1, (float)0,
077 (float)mid, c2));
078 g.fillRect(0, 0, w, mid);
079 }
080 if (mid2 > 0) {
081 g.setColor(c2);
082 g.fillRect(0, mid, w, mid2);
083 }
084 if (mid > 0) {
085 g.setPaint(new GradientPaint((float)0, (float)mid + mid2, c2,
086 (float)0, (float)mid * 2 + mid2, c1));
087 g.fillRect(0, mid + mid2, w, mid);
088 }
089 if (h - mid * 2 - mid2 > 0) {
090 g.setPaint(new GradientPaint((float)0, (float)mid * 2 + mid2, c1,
091 (float)0, (float)h, c3));
092 g.fillRect(0, mid * 2 + mid2, w, h - mid * 2 - mid2);
093 }
094 }
095 }
096 }