time_color.js revision 1364:9fddd7695ded 
1#// Usage: jjs -fx time_color.js [-- true/false]
2
3/*
4 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 *   - Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 *
13 *   - Redistributions in binary form must reproduce the above copyright
14 *     notice, this list of conditions and the following disclaimer in the
15 *     documentation and/or other materials provided with the distribution.
16 *
17 *   - Neither the name of Oracle nor the names of its
18 *     contributors may be used to endorse or promote products derived
19 *     from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
22 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
25 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34// A simple javafx program that changes background color
35// of scene based on current time value (once per sec).
36// inspired by http://whatcolourisit.scn9a.org/
37
38if (!$OPTIONS._fx) {
39    print("Usage: jjs -fx time_color.js");
40    print("       jjs -fx time_color.js -- true");
41    exit(1);
42}
43
44// JavaFX classes used
45var Color = Java.type("javafx.scene.paint.Color");
46var Group = Java.type("javafx.scene.Group");
47var Label = Java.type("javafx.scene.control.Label");
48var Platform = Java.type("javafx.application.Platform");
49var Scene = Java.type("javafx.scene.Scene");
50var Timer = Java.type("java.util.Timer");
51
52// execute function periodically once per given time in millisec
53function setInterval(func, ms) {
54    // New timer, run as daemon so the application can quit
55    var timer = new Timer("setInterval", true);
56    timer.schedule(function() Platform.runLater(func), ms, ms);
57    return timer;
58}
59
60// do you want to flip hour/min/sec for RGB?
61var flip = arguments.length > 0? "true".equals(arguments[0]) : false;
62
63// JavaFX start method
64function start(stage) {
65    stage.title = "Time Color";
66    var root = new Group();
67    var label = new Label("time");
68    label.textFill = Color.WHITE;
69    root.children.add(label);
70    stage.scene = new Scene(root, 700, 500);
71
72    setInterval(function() {
73        var d = new Date();
74        var hours = d.getHours();
75	var mins = d.getMinutes();
76	var secs = d.getSeconds();
77
78        if (hours < 10) hours = "0" + hours;
79        if (mins < 10) mins = "0" + mins;
80        if (secs < 10) secs = "0" + secs;
81
82	var hex = flip?
83            "#" + secs + mins + hours : "#" + hours + mins + secs;
84        label.text = "Color: " + hex;
85        stage.scene.fill = Color.web(hex);
86    }, 1000);
87
88    stage.show();
89}
90