001/* MetalRadioButtonUI.java
002   Copyright (C) 2005, 2006, 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.Dimension;
043import java.awt.Graphics;
044import java.awt.Rectangle;
045
046import javax.swing.AbstractButton;
047import javax.swing.JComponent;
048import javax.swing.JRadioButton;
049import javax.swing.UIManager;
050import javax.swing.plaf.ComponentUI;
051import javax.swing.plaf.basic.BasicRadioButtonUI;
052
053
054/**
055 * A UI delegate for the {@link JRadioButton} component.
056 */
057public class MetalRadioButtonUI
058  extends BasicRadioButtonUI
059{
060
061  /** Used to draw the focus rectangle. */
062  protected Color focusColor;
063  
064  /** Used to fill the icon when the button is pressed. */
065  protected Color selectColor;
066  
067  /** Used to draw disabled text. */
068  protected Color disabledTextColor;
069  
070  /**
071   * Constructs a new instance of <code>MetalRadioButtonUI</code>.
072   */
073  public MetalRadioButtonUI()
074  {
075    super();
076  }
077
078  /**
079   * Returns a new instance of <code>MetalRadioButtonUI</code>.
080   *
081   * @param component the component for which we return an UI instance
082   *
083   * @return A new instance of <code>MetalRadioButtonUI</code>.
084   */
085  public static ComponentUI createUI(JComponent component)
086  {
087    return new MetalRadioButtonUI();
088  }
089  
090  /**
091   * Sets the default values for the specified button.
092   * 
093   * @param b  the button.
094   */
095  public void installDefaults(AbstractButton b)
096  {
097    super.installDefaults(b);
098    String prefix = getPropertyPrefix();
099    disabledTextColor = UIManager.getColor(prefix + "disabledText");
100    focusColor = UIManager.getColor(prefix + "focus");
101    selectColor = UIManager.getColor(prefix + "select");
102  }
103  
104  /**
105   * Clears any defaults set in the installDefaults() method.
106   * 
107   * @param b  the {@link JRadioButton}.
108   */
109  protected void uninstallDefaults(AbstractButton b)
110  {
111    super.uninstallDefaults(b);
112    disabledTextColor = null;
113    focusColor = null;
114    selectColor = null;
115  }
116  
117  /**
118   * Returns the color used to fill the {@link JRadioButton}'s icon when the
119   * button is pressed.  The default color is obtained from the 
120   * {@link UIManager} defaults via an entry with the key 
121   * <code>RadioButton.select</code>.
122   * 
123   * @return The select color.
124   */
125  protected Color getSelectColor()
126  {
127    return selectColor;    
128  }
129  
130  /**
131   * Returns the color for the {@link JRadioButton}'s text when the button is
132   * disabled.  The default color is obtained from the {@link UIManager}
133   * defaults via an entry with the key <code>RadioButton.disabledText</code>.
134   * 
135   * @return The disabled text color.
136   */
137  protected Color getDisabledTextColor()
138  {
139    return disabledTextColor;
140  }
141  
142  /**
143   * Returns the color used to draw the focus rectangle when the 
144   * {@link JRadioButton} has the focus.  The default color is obtained from 
145   * the {@link UIManager} defaults via an entry with the key 
146   * <code>RadioButton.focus</code>.
147   * 
148   * @return The color used to draw the focus rectangle.
149   * 
150   * @see #paintFocus(Graphics, Rectangle, Dimension)
151   */
152  protected Color getFocusColor()
153  {
154    return focusColor;
155  }
156  
157  /**
158   * Paints the {@link JRadioButton}.
159   * 
160   * @param g  the graphics device.
161   * @param c  the component (an instance of {@link JRadioButton}).
162   */
163  public void paint(Graphics g, JComponent c)
164  {
165    super.paint(g, c);
166    // FIXME:  disabled text isn't being drawn correctly, it's possible that
167    // it could be done here...
168  }
169  
170  /**
171   * Paints the focus rectangle for the {@link JRadioButton}.
172   * 
173   * @param g  the graphics device.
174   * @param t  the bounding rectangle for the text.
175   * @param d  ???
176   */
177  protected void paintFocus(Graphics g, Rectangle t, Dimension d)
178  {
179    g.setColor(focusColor);
180    g.drawRect(t.x - 1, t.y - 1, t.width + 1, t.height + 1);
181  }
182  
183}