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,
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  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     start.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 }