001 /* MetalProgressBarUI.java
002 Copyright (C) 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package javax.swing.plaf.metal;
040
041 import java.awt.Color;
042 import java.awt.Graphics;
043 import java.awt.Insets;
044
045 import javax.swing.JComponent;
046 import javax.swing.JProgressBar;
047 import javax.swing.plaf.ComponentUI;
048 import javax.swing.plaf.basic.BasicProgressBarUI;
049
050 /**
051 * A UI delegate for the {@link JProgressBar} component.
052 */
053 public class MetalProgressBarUI extends BasicProgressBarUI
054 {
055 /**
056 * Constructs a new instance of <code>MetalProgressBarUI</code>.
057 */
058 public MetalProgressBarUI()
059 {
060 super();
061 }
062
063 /**
064 * Returns a new instance of <code>MetalProgressBarUI</code>.
065 *
066 * @param component the component for which we return an UI instance
067 *
068 * @return A new instance of <code>MetalProgressBarUI</code>.
069 */
070 public static ComponentUI createUI(JComponent component)
071 {
072 return new MetalProgressBarUI();
073 }
074
075 /**
076 * Performs the painting for determinate progress bars. This calls the
077 * superclass behaviour and then adds some highlighting to the upper and left
078 * edge of the progress bar.
079 *
080 * @param g the graphics context
081 * @param c not used here
082 */
083 public void paintDeterminate(Graphics g, JComponent c)
084 {
085 super.paintDeterminate(g, c);
086 Color saved = g.getColor();
087 Insets i = progressBar.getInsets();
088 int w = progressBar.getWidth();
089 int h = progressBar.getHeight();
090 int orientation = progressBar.getOrientation();
091
092 Color shadow = MetalLookAndFeel.getControlShadow();
093 g.setColor(shadow);
094
095 g.drawLine(i.left, i.top, w - i.right, i.top);
096 g.drawLine(i.left, i.top, i.left, h - i.bottom);
097 int full = getAmountFull(i, w, h);
098 if (full > 0)
099 {
100 Color darkShadow = MetalLookAndFeel.getPrimaryControlDarkShadow();
101 g.setColor(darkShadow);
102 if (orientation == JProgressBar.HORIZONTAL)
103 {
104 g.drawLine(i.left, i.top, i.left, h - i.bottom);
105 g.drawLine(i.left, i.top, i.left + full - 1, i.top);
106 }
107 else
108 {
109 if (full >= (h - i.top - i.bottom))
110 g.drawLine(i.left, i.top, w - i.right, i.top);
111 g.drawLine(i.left, h - i.bottom, i.left, h - i.bottom - full);
112 }
113 }
114 g.setColor(saved);
115 }
116
117 /**
118 * Performs the painting for indeterminate progress bars. This calls the
119 * superclass behaviour and then adds some highlighting to the upper and left
120 * edge of the progress bar.
121 *
122 * @param g the graphics context
123 * @param c not used here
124 */
125 public void paintIndeterminate(Graphics g, JComponent c)
126 {
127 super.paintIndeterminate(g, c);
128 Color saved = g.getColor();
129 Insets i = progressBar.getInsets();
130 int w = progressBar.getWidth();
131 int h = progressBar.getHeight();
132 Color shadow = MetalLookAndFeel.getControlShadow();
133 g.setColor(shadow);
134 g.drawLine(i.left, i.top, w - i.right, i.top);
135 g.drawLine(i.left, i.top, i.left, h - i.bottom);
136
137 boxRect = getBox(boxRect);
138 Color darkShadow = MetalLookAndFeel.getPrimaryControlDarkShadow();
139 g.setColor(darkShadow);
140 int orientation = progressBar.getOrientation();
141 if (orientation == JProgressBar.HORIZONTAL)
142 g.drawLine(boxRect.x, i.top, boxRect.x + boxRect.width - 1, i.top);
143 else
144 g.drawLine(i.left, boxRect.y, i.left, boxRect.y + boxRect.height - 1);
145 g.setColor(saved);
146 }
147 }