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 38 if (!$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 45 var Color = Java.type("javafx.scene.paint.Color"); 46 var Group = Java.type("javafx.scene.Group"); 47 var Label = Java.type("javafx.scene.control.Label"); 48 var Platform = Java.type("javafx.application.Platform"); 49 var Scene = Java.type("javafx.scene.Scene"); 50 var Timer = Java.type("java.util.Timer"); 51 52 // execute function periodically once per given time in millisec 53 function 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? 61 var flip = arguments.length > 0? "true".equals(arguments[0]) : false; 62 63 // JavaFX start method 64 function 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 }