1 /* BasicToggleButtonUI.java
2    Copyright (C) 2002, 2004, 2005, 2006, Free Software Foundation, Inc.
3 
4 This file is part of GNU Classpath.
5 
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10 
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING.  If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 02110-1301 USA.
20 
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library.  Thus, the terms and
23 conditions of the GNU General Public License cover the whole
24 combination.
25 
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module.  An independent module is a module which is not derived from
33 or based on this library.  If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so.  If you do not wish to do so, delete this
36 exception statement from your version. */
37 
38 
39 package javax.swing.plaf.basic;
40 
41 import java.awt.Font;
42 import java.awt.Graphics;
43 import java.awt.Rectangle;
44 
45 import javax.swing.AbstractButton;
46 import javax.swing.JComponent;
47 import javax.swing.JToggleButton;
48 import javax.swing.SwingUtilities;
49 import javax.swing.UIManager;
50 import javax.swing.plaf.ComponentUI;
51 
52 /**
53  * A UI delegate for the {@link JToggleButton} component.
54  */
55 public class BasicToggleButtonUI extends BasicButtonUI
56 {
57 
58   /**
59    * Returns a UI delegate for the specified component.
60    *
61    * @param component  the component (should be an instance of
62    *     {@link JToggleButton}).
63    *
64    * @return An instance of <code>BasicToggleButtonUI</code>.
65    */
createUI(JComponent component)66   public static ComponentUI createUI(JComponent component)
67   {
68     return new BasicToggleButtonUI();
69   }
70 
71   /**
72    * Returns the prefix for entries in the {@link UIManager} defaults table
73    * (<code>"ToggleButton."</code> in this case).
74    *
75    * @return <code>"ToggleButton."</code>
76    */
getPropertyPrefix()77   protected String getPropertyPrefix()
78   {
79     return "ToggleButton.";
80   }
81 
82   /**
83    * Paint the component, which is an {@link AbstractButton}, according to
84    * its current state.
85    *
86    * @param g The graphics context to paint with
87    * @param c The component to paint the state of
88    */
paint(Graphics g, JComponent c)89   public void paint(Graphics g, JComponent c)
90   {
91     AbstractButton b = (AbstractButton) c;
92 
93     Rectangle tr = new Rectangle();
94     Rectangle ir = new Rectangle();
95     Rectangle vr = new Rectangle();
96 
97     Font f = c.getFont();
98 
99     g.setFont(f);
100 
101     if (b.isBorderPainted())
102       SwingUtilities.calculateInnerArea(b, vr);
103     else
104       vr = SwingUtilities.getLocalBounds(b);
105     String text = SwingUtilities.layoutCompoundLabel(c, g.getFontMetrics(f),
106         b.getText(), currentIcon(b), b.getVerticalAlignment(),
107         b.getHorizontalAlignment(), b.getVerticalTextPosition(),
108         b.getHorizontalTextPosition(), vr, ir, tr, b.getIconTextGap()
109         + defaultTextShiftOffset);
110 
111     if ((b.getModel().isArmed() && b.getModel().isPressed())
112         || b.isSelected())
113       paintButtonPressed(g, b);
114 
115     paintIcon(g, b, ir);
116     if (text != null)
117       paintText(g, b, tr, text);
118     if (b.isFocusOwner() && b.isFocusPainted())
119       paintFocus(g, b, vr, tr, ir);
120   }
121 
122   /**
123    * Paints the icon for the toggle button. This delegates to
124    * {@link BasicButtonUI#paintIcon(Graphics, JComponent, Rectangle)}.
125    *
126    * @param g the graphics context
127    * @param b the button to paint the icon for
128    * @param iconRect the area allocated for the icon
129    */
paintIcon(Graphics g, AbstractButton b, Rectangle iconRect)130   protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect)
131   {
132     super.paintIcon(g, b, iconRect);
133   }
134 }
135