1 /*
2 * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.java.swing.plaf.motif;
27
28 import java.awt.*;
29 import java.awt.event.*;
30
31 import java.io.*;
32 import java.util.*;
33
34 import javax.swing.*;
35 import javax.swing.plaf.*;
36 import javax.swing.tree.*;
37 import javax.swing.plaf.basic.*;
38
39 /**
40 * Motif rendition of the tree component.
41 * <p>
42 * <strong>Warning:</strong>
43 * Serialized objects of this class will not be compatible with
44 * future Swing releases. The current serialization support is appropriate
45 * for short term storage or RMI between applications running the same
46 * version of Swing. A future release of Swing will provide support for
47 * long term persistence.
48 *
49 * @author Jeff Dinkins
50 */
51 public class MotifTreeUI extends BasicTreeUI
52 {
53 static final int HALF_SIZE = 7;
54 static final int SIZE = 14;
55
56 /**
57 * creates a UI object to represent a Motif Tree widget
58 */
59 public MotifTreeUI() {
60 super();
61 }
62
63 public void installUI(JComponent c) {
64 super.installUI(c);
65 }
66
67 // BasicTreeUI overrides
68
69 protected void paintVerticalLine( Graphics g, JComponent c, int x, int top, int bottom )
70 {
71 if (tree.getComponentOrientation().isLeftToRight()) {
72 g.fillRect( x, top, 2, bottom - top + 2 );
73 } else {
74 g.fillRect( x - 1, top, 2, bottom - top + 2 );
75 }
76 }
77
78 protected void paintHorizontalLine( Graphics g, JComponent c, int y, int left, int right )
79 {
80 g.fillRect( left, y, right - left + 1, 2 );
81 }
82
83
84 /**
85 * The minus sign button icon.
86 * <p>
87 * <strong>Warning:</strong>
88 * Serialized objects of this class will not be compatible with
89 * future Swing releases. The current serialization support is appropriate
90 * for short term storage or RMI between applications running the same
91 * version of Swing. A future release of Swing will provide support for
92 * long term persistence.
93 */
94 public static class MotifExpandedIcon implements Icon, Serializable {
95 static Color bg;
96 static Color fg;
97 static Color highlight;
98 static Color shadow;
99
100 public MotifExpandedIcon() {
101 bg = UIManager.getColor("Tree.iconBackground");
102 fg = UIManager.getColor("Tree.iconForeground");
103 highlight = UIManager.getColor("Tree.iconHighlight");
104 shadow = UIManager.getColor("Tree.iconShadow");
105 }
106
107 public static Icon createExpandedIcon() {
108 return new MotifExpandedIcon();
109 }
110
111 public void paintIcon(Component c, Graphics g, int x, int y) {
112 g.setColor(highlight);
113 g.drawLine(x, y, x+SIZE-1, y);
114 g.drawLine(x, y+1, x, y+SIZE-1);
115
116 g.setColor(shadow);
117 g.drawLine(x+SIZE-1, y+1, x+SIZE-1, y+SIZE-1);
118 g.drawLine(x+1, y+SIZE-1, x+SIZE-1, y+SIZE-1);
119
120 g.setColor(bg);
121 g.fillRect(x+1, y+1, SIZE-2, SIZE-2);
122
123 g.setColor(fg);
124 g.drawLine(x+3, y+HALF_SIZE-1, x+SIZE-4, y+HALF_SIZE-1);
125 g.drawLine(x+3, y+HALF_SIZE, x+SIZE-4, y+HALF_SIZE);
126 }
127
128 public int getIconWidth() { return SIZE; }
129 public int getIconHeight() { return SIZE; }
130 }
131
132 /**
133 * The plus sign button icon.
134 * <p>
135 * <strong>Warning:</strong>
136 * Serialized objects of this class will not be compatible with
137 * future Swing releases. The current serialization support is appropriate
138 * for short term storage or RMI between applications running the same
139 * version of Swing. A future release of Swing will provide support for
140 * long term persistence.
141 */
142 public static class MotifCollapsedIcon extends MotifExpandedIcon {
143 public static Icon createCollapsedIcon() {
144 return new MotifCollapsedIcon();
145 }
146
147 public void paintIcon(Component c, Graphics g, int x, int y) {
148 super.paintIcon(c, g, x, y);
149 g.drawLine(x + HALF_SIZE-1, y + 3, x + HALF_SIZE-1, y + (SIZE - 4));
150 g.drawLine(x + HALF_SIZE, y + 3, x + HALF_SIZE, y + (SIZE - 4));
151 }
152 }
153
154 public static ComponentUI createUI(JComponent x) {
155 return new MotifTreeUI();
156 }
157
158 /**
159 * Returns the default cell renderer that is used to do the
160 * stamping of each node.
161 */
162 public TreeCellRenderer createDefaultCellRenderer() {
163 return new MotifTreeCellRenderer();
164 }
165
166 }