old-autovect-branch/libjava/classpath/javax/swing/plaf/metal/MetalComboBoxEditor.java

   1 /* MetalComboBoxEditor.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.awt.Insets;
  45
  46 import javax.swing.JTextField;
  47 import javax.swing.plaf.basic.BasicComboBoxEditor;
  48 import javax.swing.plaf.metal.MetalLookAndFeel;
  49 import javax.swing.plaf.metal.MetalBorders.Flush3DBorder;
  50
  51 /**
  52  * An editor used by the {@link MetalComboBoxUI} class.
  53  */
  54 public class MetalComboBoxEditor extends BasicComboBoxEditor
  55 {
  56   /**
  57    * A border used for the {@link JTextField} component.
  58    */
  59   static class MetalComboBoxEditorBorder extends Flush3DBorder
  60   {
  61     /**
  62      * Creates a new border instance.
  63      */
  64     public MetalComboBoxEditorBorder()
  65     {
  66       // Nothing to do here.
  67     }
  68
  69     /**
  70      * Paints the border for the specified component.
  71      *
  72      * @param c  the component (ignored).
  73      * @param g  the graphics device.
  74      * @param x  the x-coordinate.
  75      * @param y  the y-coordinate.
  76      * @param w  the width.
  77      * @param h  the height.
  78      */
  79     public void paintBorder(Component c, Graphics g, int x, int y, int w,
  80         int h)
  81     {
  82       Color savedColor = g.getColor();
  83       if (c.isEnabled())
  84         g.setColor(MetalLookAndFeel.getControlDarkShadow());
  85       else
  86         g.setColor(MetalLookAndFeel.getControlShadow());
  87       g.drawLine(x, y, x + w - 1, y);
  88       g.drawLine(x, y, x, y + h - 2);
  89       g.drawLine(x + 2, y + h - 2, x + w - 1, y + h - 2);
  90       g.setColor(MetalLookAndFeel.getControl());
  91       g.drawLine(x + 1, y + h - 2, x + 1, y + h - 2);
  92       g.setColor(MetalLookAndFeel.getWhite());
  93       g.drawLine(x, y + h - 1, x + w - 1, y + h - 1);
  94       g.setColor(savedColor);
  95     }
  96
  97     /**
  98      * Measures the width of this border.
  99      *
 100      * @param c the component whose border is to be measured.
 101      *
 102      * @return an Insets object whose <code>left</code>, <code>right</code>,
 103      *         <code>top</code> and <code>bottom</code> fields indicate the
 104      *         width of the border at the respective edge, which is zero
 105      *         for the default implementation provided by AbstractButton.
 106      *
 107      * @see #getBorderInsets(java.awt.Component, java.awt.Insets)
 108      */
 109     public Insets getBorderInsets(Component c)
 110     {
 111       return editorBorderInsets;
 112     }
 113   }
 114
 115   /**
 116    * A subclass of {@link MetalComboBoxEditor} that implements the
 117    * {@link javax.swing.plaf.UIResource} interface.
 118    */
 119   public static class UIResource extends MetalComboBoxEditor
 120     implements javax.swing.plaf.UIResource
 121   {
 122     /**
 123      * Creates a new instance.
 124      */
 125     public UIResource()
 126     {
 127       // Nothing to do here.
 128     }
 129   }
 130
 131   /** The editor's border insets. */
 132   protected static Insets editorBorderInsets = new Insets(4, 2, 4, 0);
 133
 134   /**
 135    * Creates a new editor.
 136    */
 137   public MetalComboBoxEditor()
 138   {
 139     super();
 140     editor.setBorder(new MetalComboBoxEditorBorder());
 141   }
 142
 143 }