001/* MetalProgressBarUI.java
002   Copyright (C) 2005 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package javax.swing.plaf.metal;
040
041import java.awt.Color;
042import java.awt.Graphics;
043import java.awt.Insets;
044
045import javax.swing.JComponent;
046import javax.swing.JProgressBar;
047import javax.swing.plaf.ComponentUI;
048import javax.swing.plaf.basic.BasicProgressBarUI;
049
050/**
051 * A UI delegate for the {@link JProgressBar} component.
052 */
053public 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}