001 /* MetalComboBoxEditor.java
002 Copyright (C) 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package javax.swing.plaf.metal;
040
041 import java.awt.Component;
042 import java.awt.Dimension;
043 import java.awt.Graphics;
044 import java.awt.Insets;
045
046 import javax.swing.JTextField;
047 import javax.swing.border.AbstractBorder;
048 import javax.swing.plaf.basic.BasicComboBoxEditor;
049 import javax.swing.plaf.metal.MetalLookAndFeel;
050
051 /**
052 * An editor used by the {@link MetalComboBoxUI} class.
053 */
054 public class MetalComboBoxEditor extends BasicComboBoxEditor
055 {
056 /**
057 * A border used for the {@link JTextField} component.
058 */
059 static class MetalComboBoxEditorBorder extends AbstractBorder
060 {
061 /**
062 * Creates a new border instance.
063 */
064 public MetalComboBoxEditorBorder()
065 {
066 // Nothing to do here.
067 }
068
069 /**
070 * Paints the border for the specified component.
071 *
072 * @param c the component (ignored).
073 * @param g the graphics device.
074 * @param x the x-coordinate.
075 * @param y the y-coordinate.
076 * @param w the width.
077 * @param h the height.
078 */
079 public void paintBorder(Component c, Graphics g, int x, int y, int w,
080 int h)
081 {
082 g.translate(x, y);
083 if (MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme)
084 {
085 g.setColor(MetalLookAndFeel.getControlDarkShadow());
086 g.drawLine(0, 0, w - 1, 0);
087 g.drawLine(0, 0, 0, h - 1);
088 g.drawLine(0, h - 1, w - 1, h - 1);
089 g.setColor(MetalLookAndFeel.getControlShadow());
090 g.drawLine(1, 1, w - 2, 1);
091 g.drawLine(1, 1, 1, h - 2);
092 g.drawLine(1, h - 2, w - 1, h - 2);
093 g.drawLine(w - 1, 1, w - 1, h - 2);
094 }
095 else
096 {
097 g.setColor(MetalLookAndFeel.getControlDarkShadow());
098 g.drawLine(0, 0, w - 1, 0);
099 g.drawLine(0, 0, 0, h - 2);
100 g.drawLine(0, h - 2, w - 1, h - 2);
101 g.setColor(MetalLookAndFeel.getControlHighlight());
102 g.drawLine(1, 1, w - 1, 1);
103 g.drawLine(1, 1, 1, h - 1);
104 g.drawLine(1, h - 1, w - 1, h - 1);
105 g.setColor(MetalLookAndFeel.getControl());
106 g.drawLine(1, h - 2, 1, h - 2);
107 }
108 g.translate(-x, -y);
109 }
110
111 /**
112 * Measures the width of this border.
113 *
114 * @param c the component whose border is to be measured.
115 *
116 * @return an Insets object whose <code>left</code>, <code>right</code>,
117 * <code>top</code> and <code>bottom</code> fields indicate the
118 * width of the border at the respective edge, which is zero
119 * for the default implementation provided by AbstractButton.
120 *
121 * @see #getBorderInsets(java.awt.Component, java.awt.Insets)
122 */
123 public Insets getBorderInsets(Component c)
124 {
125 return editorBorderInsets;
126 }
127 }
128
129 /**
130 * A subclass of {@link MetalComboBoxEditor} that implements the
131 * {@link javax.swing.plaf.UIResource} interface.
132 */
133 public static class UIResource extends MetalComboBoxEditor
134 implements javax.swing.plaf.UIResource
135 {
136 /**
137 * Creates a new instance.
138 */
139 public UIResource()
140 {
141 // Nothing to do here.
142 }
143 }
144
145 /**
146 * A special textfield implementation for the MetalComboBoxEditor.
147 */
148 private class EditorTextField extends JTextField
149 {
150 EditorTextField(String s, int columns)
151 {
152 super(s, columns);
153 }
154
155 /**
156 * Tests seem to show that the textfield in MetalComboBoxEditors have
157 * a height + 4.
158 */
159 public Dimension getPreferredSize()
160 {
161 Dimension size = super.getPreferredSize();
162 size.height += 4;
163 return size;
164 }
165
166 /**
167 * Tests seem to show that the textfield in MetalComboBoxEditors have
168 * a height + 4.
169 */
170 public Dimension getMinimumSize()
171 {
172 Dimension size = super.getMinimumSize();
173 size.height += 4;
174 return size;
175 }
176 }
177
178 /** The editor's border insets. */
179 protected static Insets editorBorderInsets = new Insets(2, 2, 2, 0);
180
181 /**
182 * Creates a new editor.
183 */
184 public MetalComboBoxEditor()
185 {
186 editor = new EditorTextField("", 9);
187 editor.setBorder(new MetalComboBoxEditorBorder());
188 }
189
190 }