JavaFx 8 - Changing CSS style property values at runtime

Question

I have to scale/change by button's text size dynamically whose default values are in CSS

.button { 
    -fx-font-size: 20;        
}

in JavaFx

button.getStyleClass().add("button");

Now I have to scale the fonts by factor 2 but there is no way to find the existing font size so that I could just multiply the factor

button.setStyle("-fx-font-size:"+oldVal*2);

How do I get the existing font size ?

Roland · Accepted Answer · 2015-04-05 10:14:52Z

1

It's as easy as using

button.getFont().getSize();

It works only after the stage was shown.

edited Apr 5, 2015 at 10:14

answered Apr 5, 2015 at 9:41

Roland

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3 Comments

Neil Over a year ago

Accepted and upvoted . it works for me now. However I was looking for a generic solution where I can multiply the factor in the style even before setting it for the first time.

Roland Over a year ago

You could parse the stylesheet but with all the inheritance that might be going on I rather advise against it.

Neil Over a year ago

I know, I could do a getStyle() and look for the string separated by ";" and containing the style name but that sounds fragile.

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