1 /*
2 *
3 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * - Neither the name of Oracle nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
21 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32 package java2d.demos.Transforms;
33
34
35 import static java.awt.Color.BLACK;
36 import static java.awt.Color.BLUE;
37 import static java.awt.Color.GRAY;
38 import static java.awt.Color.LIGHT_GRAY;
39 import static java.awt.Color.WHITE;
40 import static java.awt.Color.YELLOW;
41 import java.awt.BasicStroke;
42 import java.awt.Component;
43 import java.awt.Dimension;
44 import java.awt.Graphics2D;
45 import java.awt.event.ActionEvent;
46 import java.awt.event.ActionListener;
47 import java.awt.geom.AffineTransform;
48 import java.awt.geom.Ellipse2D;
49 import java2d.ControlsSurface;
50 import java2d.CustomControls;
51 import javax.swing.JLabel;
52 import javax.swing.JTextField;
53
54
55 /**
56 * Rotate ellipses with controls for increment and emphasis.
57 * Emphasis is defined as which ellipses have a darker color and thicker stroke.
58 */
59 @SuppressWarnings("serial")
60 public class Rotate extends ControlsSurface {
61
62 protected double increment = 5.0;
63 protected int emphasis = 9;
64
65 public Rotate() {
66 setBackground(WHITE);
67 setControls(new Component[] { new DemoControls(this) });
68 }
69
70 @Override
71 public void render(int w, int h, Graphics2D g2) {
72 int size = Math.min(w, h);
73 float ew = size / 4;
74 float eh = size - 20;
75 Ellipse2D ellipse = new Ellipse2D.Float(-ew / 2, -eh / 2, ew, eh);
76 for (double angdeg = 0; angdeg < 360; angdeg += increment) {
77 if (angdeg % emphasis == 0) {
78 g2.setColor(GRAY);
79 g2.setStroke(new BasicStroke(2.0f));
80 } else {
81 g2.setColor(LIGHT_GRAY);
82 g2.setStroke(new BasicStroke(0.5f));
83 }
84 AffineTransform at = AffineTransform.getTranslateInstance(w / 2, h
85 / 2);
86 at.rotate(Math.toRadians(angdeg));
87 g2.draw(at.createTransformedShape(ellipse));
88 }
89 g2.setColor(BLUE);
90 ellipse.setFrame(w / 2 - 10, h / 2 - 10, 20, 20);
91 g2.fill(ellipse);
92 g2.setColor(GRAY);
93 g2.setStroke(new BasicStroke(6));
94 g2.draw(ellipse);
95 g2.setColor(YELLOW);
96 g2.setStroke(new BasicStroke(4));
97 g2.draw(ellipse);
98 g2.setColor(BLACK);
99 g2.drawString("Rotate", 5, 15);
100 }
101
102 public static void main(String s[]) {
103 createDemoFrame(new Rotate());
104 }
105
106
107 static class DemoControls extends CustomControls implements ActionListener {
108
109 Rotate demo;
110 JTextField tf1, tf2;
111
112 @SuppressWarnings("LeakingThisInConstructor")
113 public DemoControls(Rotate demo) {
114 super(demo.name);
115 this.demo = demo;
116 JLabel l = new JLabel("Increment:");
117 l.setForeground(BLACK);
118 add(l);
119 add(tf1 = new JTextField("5.0"));
120 tf1.setPreferredSize(new Dimension(30, 24));
121 tf1.addActionListener(this);
122 add(l = new JLabel(" Emphasis:"));
123 l.setForeground(BLACK);
124 add(tf2 = new JTextField("9"));
125 tf2.setPreferredSize(new Dimension(30, 24));
126 tf2.addActionListener(this);
127 }
128
129 @Override
130 public void actionPerformed(ActionEvent e) {
131 try {
132 if (e.getSource().equals(tf1)) {
133 demo.increment = Double.parseDouble(tf1.getText().trim());
134 if (demo.increment < 1.0) {
135 demo.increment = 1.0;
136 }
137 } else {
138 demo.emphasis = Integer.parseInt(tf2.getText().trim());
139 }
140 demo.repaint();
141 } catch (Exception ex) {
142 }
143 }
144
145 @Override
146 public Dimension getPreferredSize() {
147 return new Dimension(200, 39);
148 }
149
150 @Override
151 @SuppressWarnings("SleepWhileHoldingLock")
152 public void run() {
153 Thread me = Thread.currentThread();
154 while (thread == me) {
155 for (int i = 3; i < 13; i += 3) {
156 try {
157 Thread.sleep(4444);
158 } catch (InterruptedException e) {
159 return;
160 }
161 tf1.setText(String.valueOf(i));
162 demo.increment = i;
163 demo.repaint();
164 }
165 }
166 thread = null;
167 }
168 } // End DemoControls class
169 } // End Rotate class
170