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,

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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 }