And the Nashorn again...

I know I know...it's a long time ago...but a lot of things happened within the last couple of months which kept me away from blogging...
So today my colleague Bruno Borges asked me if I would have an example where I use JavaFX with Nashorn only...means without writing any Java code and because I had no example I've created one :)

So here you go, simply copy the following code in a file named e.g. nashorn.js :

load('fx:base.js');
load('fx:graphics.js');

var Random        = java.util.Random;
var lastTimerCall = 0;

var Gauge         = Packages.eu.hansolo.enzo.gauge.Gauge;
var Section       = Packages.eu.hansolo.enzo.common.Section;

var timer         = new AnimationTimer() {
    handle: function handle(now) {
        if (now > lastTimerCall + 5000000000) {
            gauge.value = new Random().nextDouble() * 40;
            lastTimerCall = now;
        }
    }
};

var gauge      = new Gauge();
gauge.title    = 'NashornFX';
gauge.unit     = '°C';
gauge.minValue = 0;
gauge.maxValue = 40;
gauge.sections = [new Section(18, 26),
                  new Section(26, 32),
                  new Section(32, 40)];
gauge.style = ('-section-fill-0: rgba(0, 200, 50, 0.5);' +
               '-section-fill-1: rgba(200, 100, 0, 0.5);' +
               '-section-fill-2: rgba(200, 0, 0, 0.5);');

$STAGE.title = 'Nashorn FX';
$STAGE.scene = new Scene(new StackPane(gauge), 400, 400);
$STAGE.show();

timer.start();

And with a few lines of code we created a JavaFX scene and add a stage that contains a Gauge that has three sections with custom colors. In addition we also added an AnimationTimer that changes the value of the Gauge every 5 seconds.
For those of you who are wondering how I can access my Enzo-0.2.4.jar file here is solution...you can simply add it to the classpath when calling the script.

To be able to run the application you have to copy the Enzo-0.2.4.jar file to the same folder as the nashorn.js file. The Enzo library can be downloaded here.

To start the application simply execute the following on the command line:

#: jjs -cp Enzo-0.2.4.jar -fx nashorn.js

Please make sure you run that script on JDK 8 !

If everything is correct you should see something like this...

And that's it for today...keep coding... :)