01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
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40: */
41: package org.netbeans.modules.visual.anchor;
42:
43: import org.netbeans.api.visual.anchor.AnchorShape;
44:
45: import java.awt.*;
46: import java.awt.geom.GeneralPath;
47:
48: /**
49: * @author Antonio
50: */
51: public class ArrowAnchorShape implements AnchorShape {
52:
53: private static final Stroke STROKE = new BasicStroke(1.0f,
54: BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
55:
56: private GeneralPath path;
57: private int size;
58:
59: public ArrowAnchorShape(int degrees, int size) {
60: this .size = size;
61: path = new GeneralPath();
62:
63: double radians = Math.PI * degrees / 180.0;
64: double cos = Math.cos(radians / 2.0);
65: double sin = -size * Math.sqrt(1 - cos * cos);
66: cos *= size;
67:
68: path.moveTo(0.0f, 0.0f);
69: path.lineTo((float) cos, (float) -sin);
70: path.moveTo(0.0f, 0.0f);
71: path.lineTo((float) cos, (float) sin);
72: }
73:
74: public boolean isLineOriented() {
75: return true;
76: }
77:
78: public int getRadius() {
79: return size + 1;
80: }
81:
82: public double getCutDistance() {
83: return 0;
84: }
85:
86: public void paint(Graphics2D graphics, boolean source) {
87: Stroke previousStroke = graphics.getStroke();
88: graphics.setStroke(STROKE);
89: graphics.draw(path);
90: graphics.setStroke(previousStroke);
91: }
92:
93: }
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