01: /*
02: * Copyright (c) 2001-2006 JGoodies Karsten Lentzsch. All Rights Reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * o Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: *
10: * o Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * o Neither the name of JGoodies Karsten Lentzsch nor the names of
15: * its contributors may be used to endorse or promote products derived
16: * from this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20: * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
22: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
27: * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
28: * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29: */
30:
31: package com.jgoodies.animation.tutorial;
32:
33: import java.awt.Component;
34: import java.awt.Dimension;
35:
36: /**
37: * Consists only of static convenience methods used throughout
38: * the examples of the JGoodies Animation tutorial.
39: *
40: * @author Karsten Lentzsch
41: * @version $Revision: 1.2 $
42: */
43: public final class TutorialUtils {
44:
45: private TutorialUtils() {
46: // Suppresses default constructor, ensuring non-instantiability.
47: }
48:
49: // Screen Position ********************************************************
50:
51: /**
52: * Locates the given component on the screen's center.
53: *
54: * @param component the component to be centered
55: */
56: public static void locateOnOpticalScreenCenter(Component component) {
57: Dimension paneSize = component.getSize();
58: Dimension screenSize = component.getToolkit().getScreenSize();
59: component.setLocation((screenSize.width - paneSize.width) / 2,
60: (int) ((screenSize.height - paneSize.height) * 0.45));
61: }
62:
63: }
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