Source for javax.swing.plaf.metal.MetalComboBoxIcon

   1: /* MetalComboBoxIcon.java
   2:    Copyright (C) 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.metal;
  40: 
  41: import java.awt.Color;
  42: import java.awt.Component;
  43: import java.awt.Graphics;
  44: import java.io.Serializable;
  45: 
  46: import javax.swing.Icon;
  47: 
  48: /**
  49:  * An icon used by the {@link MetalComboBoxUI} class.
  50:  */
  51: public class MetalComboBoxIcon implements Icon, Serializable 
  52: {
  53:   
  54:   /**
  55:    * Creates a new icon.
  56:    */
  57:   public MetalComboBoxIcon() 
  58:   {
  59:     // nothing required.
  60:   }
  61:   
  62:   /**
  63:    * Returns the icon width, which for this icon is 10 pixels.
  64:    * 
  65:    * @return <code>10</code>.
  66:    */
  67:   public int getIconWidth()
  68:   {
  69:     return 10;
  70:   }
  71: 
  72:   /**
  73:    * Returns the icon height, which for this icon is 5 pixels.
  74:    * 
  75:    * @return <code>5</code>.
  76:    */
  77:   public int getIconHeight()
  78:   {
  79:     return 5;
  80:   }
  81: 
  82:   /**
  83:    * Paints the icon at the location (x, y).
  84:    * 
  85:    * @param c  the combo box (ignored here).
  86:    * @param g  the graphics device.
  87:    * @param x  the x coordinate.
  88:    * @param y  the y coordinate.
  89:    */
  90:   public void paintIcon(Component c, Graphics g, int x, int y)
  91:   {
  92:     Color savedColor = g.getColor();
  93:     if (c.isEnabled())
  94:       g.setColor(MetalLookAndFeel.getBlack());
  95:     else
  96:       g.setColor(MetalLookAndFeel.getControlDisabled());
  97:     for (int i = 0; i < 5; i++)
  98:       g.drawLine(x + i, y + i, x + 9 - i, y + i);
  99:     g.setColor(savedColor);
 100:   }
 101: 
 102: }