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Java text-antialiasing: how to debug when it is not working?

I am working on a fairly large Swing application (JPanels, JLabels, etc.), and I need to find out why text anti-aliasing (on JLabels, etc.) does not work.

As you know, anti-aliasing usually works automatically (with Java 1.6 anyway), i.e. when you create a simple Swing application (for example, only JPanel with JLabel on it), the text in JLabel will be smoothed out of the box. There is no need for System.setProperty("awt.useSystemAAFontSettings","on") and / or System.setProperty("swing.aatext", "true") .

But this application is different, it is not an antialias from the box, it is not an antialias with System.setProperty("awt.useSystemAAFontSettings","on") and / or System.setProperty("swing.aatext", "true") in main(String[] args) , and also not with -Dawt.useSystemAAFontSettings=on and / or -Dswing.aatext=true as VM arguments. I tried these and all the other offers that I could find on this site and on the Internet, but to no avail: this application simply does not smooth out, whatever I do or do not.

Now I have no options. So my questions are:

  • What steps can I take to find out why anti-aliasing does not work?
  • What properties should I check?
  • What code should be tracked using the debugger?
  • What circumstances can lead to antialiases not working?

Any ideas are welcome.

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2 answers

Consult System Properties for Java 2D ™ Technology: awt.useSystemAAFontSettings .

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Starting with version 1.6, it looks like swing.aatext ignored . However, as @Andrew noted, awt.useSystemAAFontSettings should work ...

One of the things you might want to do is to unload the Map for the awt.font.desktophints desktop property to see what, if anything, has been installed.

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