Font issues

[guekho64]

It seems FlatLaf has some issues trying to detect which are my current font settings, as demonstrated by this simple example:

This is how it looks

This is how it should look

Here's the code of this example (I had to modify FlatLaf src to access LinuxFontPolicy#getGnomeFont)

public class Main {
	public static void main (final String[] argv) {
		FlatIntelliJLaf.install();
		Font info = LinuxFontPolicy.getGnomeFont();
		String text = "This is what FlatLaf thinks it's my system wide font:\n\n";
		JOptionPane.showOptionDialog(
				null,
				text + info.toString(),
				"Correct Font Example",
				0,
				JOptionPane.INFORMATION_MESSAGE,
				null,
				new Object[] {"A button, of course"}, 0
				);
	}
}

System Info

FlatLaf Versions Tested

FlatLaf (master)
FlatLaf (1.1.2)

Desktop Environment

MATE 1.24.0

java -version

openjdk version "14.0.2" 2020-07-14
OpenJDK Runtime Environment (build 14.0.2+12-Ubuntu-120.04)
OpenJDK 64-Bit Server VM (build 14.0.2+12-Ubuntu-120.04, mixed mode, sharing)

lsb_release -a

Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal

uname -a

Linux PC 5.8.0-50-lowlatency 56~20.04.1-Ubuntu SMP PREEMPT Tue Apr 13 01:48:06 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

[DevCharly]

I wonder what font is used in other Lafs.

Could you replace:

FlatIntelliJLaf.install();
Font info = LinuxFontPolicy.getGnomeFont();

with

UIManager.setLookAndFeel( UIManager.getSystemLookAndFeelClassName() );
Font info = UIManager.getFont( "Label.font" );

and

UIManager.setLookAndFeel( UIManager.getCrossPlatformLookAndFeelClassName() );
Font info = UIManager.getFont( "Label.font" );

and post the two screenshots? Thanks.

[guekho64]

Here you go:

SystemLAF = javax.swing.plaf.metal.MetalLookAndFeel
javax.swing.plaf.FontUIResource[family=Dialog,name=Dialog,style=bold,size=12]

CrossplatformLAF = javax.swing.plaf.metal.MetalLookAndFeel
javax.swing.plaf.FontUIResource[family=Dialog,name=Dialog,style=bold,size=12]

And yeah, I was expecting that, since Metal doesn't follow my settings either....

[DevCharly]

Many thanks.

Yes, was expecting that for Metal too, but I actually thought that GTK is used as System Laf on Linux.

Could you please also try:

UIManager.setLookAndFeel( new GTKLookAndFeel() );

I also wonder whether the text in the JButton is totally out of vertical center for Metal and GTK Lafs as in your first screenshot

[guekho64]

Here's how JOptionPane looks in GTK laf:

Surprisingly enough, it doesn't acquire correct fonts either.

Here you can compare how it should look (MATE's oficial file browser: Caja 1.24)

Honestly, I'm not sure where could be the fault:

• Is java incorrectly parsing the output of defaultToolkit().getDesktopProperty()?
• MATE Desktop Environment is doing something wrong when reporting its default font to Java?
• Are some fonts simply misconfigured (Another case would be Nimbus Sans Bold, which reports itself as Nimbus Sans-Bold)?
  • Not to mention SF Compact Rounded Semibold was designed by ®Apple
• Font name conventions aren't strict enough, to allow for a trustworthy font metadata parsing?
  • For instance, doing new Font("SF Compact Rounded Semibold") actually works.
  • Doing new Font("SF Compact Rounded Semi-bold") fails.
  • My PR Fix #309 #310 does not follow any conventions at all, and only relies in U+0020 (" ") as the only word delimiter available, and considers last token from defaultToolkit().getDesktopProperty() as fontsize; aside from that, it doesn't make any more assumptions, and tries real hard to guess which font it's currently in use, but of course, it's not infallible. As a fallback, it'll default to generate a Dialog font, which it's universally available to Java, being a Logic family font.

[guekho64]

Are there any news on this, or #310, by any chance?

[DevCharly]

Had some issues with PR #310...

There is a fix in commit 9edaf58
Please give it a try...