Source for javax.swing.plaf.basic.BasicToggleButtonUI

   1: /* BasicToggleButtonUI.java
   2:    Copyright (C) 2002, 2004, 2005 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.SwingUtilities;
  48: import javax.swing.plaf.ComponentUI;
  49: 
  50: public class BasicToggleButtonUI extends BasicButtonUI
  51: {
  52:   public static ComponentUI createUI(final JComponent component)
  53:   {
  54:     return new BasicToggleButtonUI();
  55:   }    
  56: 
  57:   /**
  58:    * Returns the prefix for the UI defaults property for this UI class.
  59:    * This is 'ToggleButton' for this class.
  60:    *
  61:    * @return the prefix for the UI defaults property
  62:    */
  63:   protected String getPropertyPrefix()
  64:   {
  65:     return "ToggleButton.";
  66:   }
  67: 
  68:   /**
  69:    * Paint the component, which is an {@link AbstractButton}, according to 
  70:    * its current state.
  71:    *
  72:    * @param g The graphics context to paint with
  73:    * @param c The component to paint the state of
  74:    */
  75:   public void paint(Graphics g, JComponent c)
  76:   {      
  77:     AbstractButton b = (AbstractButton) c;
  78: 
  79:     Rectangle tr = new Rectangle();
  80:     Rectangle ir = new Rectangle();
  81:     Rectangle vr = new Rectangle();
  82: 
  83:     Font f = c.getFont();
  84: 
  85:     g.setFont(f);
  86: 
  87:     if (b.isBorderPainted())
  88:       SwingUtilities.calculateInnerArea(b, vr);
  89:     else
  90:       vr = SwingUtilities.getLocalBounds(b);
  91:     String text = SwingUtilities.layoutCompoundLabel(c, g.getFontMetrics(f), 
  92:                                                      b.getText(),
  93:                                                      currentIcon(b),
  94:                                                      b.getVerticalAlignment(), 
  95:                                                      b.getHorizontalAlignment(),
  96:                                                      b.getVerticalTextPosition(), 
  97:                                                      b.getHorizontalTextPosition(),
  98:                                                      vr, ir, tr, 
  99:                                                      b.getIconTextGap() 
 100:                                                      + defaultTextShiftOffset);
 101: 
 102:     if ((b.getModel().isArmed() && b.getModel().isPressed()) 
 103:         || b.isSelected())
 104:       paintButtonPressed(g, b);
 105: 
 106:     paintIcon(g, b, ir);
 107:     if (text != null)
 108:       paintText(g, b, tr, text);
 109:     if (b.isFocusOwner() && b.isFocusPainted())
 110:       paintFocus(g, b, vr, tr, ir);
 111:   }
 112: 
 113:   /**
 114:    * Paints the icon for the toggle button. This delegates to
 115:    * {@link BasicButtonUI#paintIcon(Graphics, JComponent, Rectangle)}.
 116:    *
 117:    * @param g the graphics context
 118:    * @param b the button to paint the icon for
 119:    * @param iconRect the area allocated for the icon
 120:    */
 121:   protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect)
 122:   {
 123:     super.paintIcon(g, b, iconRect);
 124:   }
 125: }