1/*
2 * Copyright (c) 1997, 2014, 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
26package com.sun.java.swing.plaf.motif;
27
28import javax.swing.*;
29import javax.swing.plaf.*;
30import javax.swing.tree.*;
31import java.awt.*;
32import java.awt.event.*;
33import java.beans.*;
34import java.io.*;
35import java.util.*;
36
37/**
38 * Motif rendered to display a tree cell.
39 * <p>
40 * <strong>Warning:</strong>
41 * Serialized objects of this class will not be compatible with
42 * future Swing releases.  The current serialization support is appropriate
43 * for short term storage or RMI between applications running the same
44 * version of Swing.  A future release of Swing will provide support for
45 * long term persistence.
46 *
47 * @author Jeff Dinkins
48 */
49@SuppressWarnings("serial") // Superclass is not serializable across versions
50public class MotifTreeCellRenderer extends DefaultTreeCellRenderer
51{
52    static final int LEAF_SIZE = 13;
53    static final Icon LEAF_ICON = new IconUIResource(new TreeLeafIcon());
54
55    public MotifTreeCellRenderer() {
56        super();
57    }
58
59    public static Icon loadLeafIcon() {
60        return LEAF_ICON;
61    }
62
63    /**
64     * Icon for a node with no children.
65     * <p>
66     * <strong>Warning:</strong>
67     * Serialized objects of this class will not be compatible with
68     * future Swing releases.  The current serialization support is appropriate
69     * for short term storage or RMI between applications running the same
70     * version of Swing.  A future release of Swing will provide support for
71     * long term persistence.
72     */
73    @SuppressWarnings("serial") // Same-version serialization only
74    public static class TreeLeafIcon implements Icon, Serializable {
75
76        Color bg;
77        Color shadow;
78        Color highlight;
79
80        public TreeLeafIcon() {
81            bg = UIManager.getColor("Tree.iconBackground");
82            shadow = UIManager.getColor("Tree.iconShadow");
83            highlight = UIManager.getColor("Tree.iconHighlight");
84        }
85
86        public void paintIcon(Component c, Graphics g, int x, int y) {
87            g.setColor(bg);
88
89            y -= 3;
90            g.fillRect(x + 4, y + 7, 5, 5);
91
92            g.drawLine(x + 6, y + 6, x + 6, y + 6);
93            g.drawLine(x + 3, y + 9, x + 3, y + 9);
94            g.drawLine(x + 6, y + 12, x + 6, y + 12);
95            g.drawLine(x + 9, y + 9, x + 9, y + 9);
96
97            g.setColor(highlight);
98            g.drawLine(x + 2, y + 9, x + 5, y + 6);
99            g.drawLine(x + 3, y + 10, x + 5, y + 12);
100
101            g.setColor(shadow);
102            g.drawLine(x + 6, y + 13, x + 10, y + 9);
103            g.drawLine(x + 9, y + 8, x + 7, y + 6);
104        }
105
106        public int getIconWidth() {
107            return LEAF_SIZE;
108        }
109
110        public int getIconHeight() {
111            return LEAF_SIZE;
112        }
113
114    }
115}
116