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Linux: JLabel html rendering changes font size #912

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cmadsen opened this issue Nov 22, 2024 · 3 comments
Closed

Linux: JLabel html rendering changes font size #912

cmadsen opened this issue Nov 22, 2024 · 3 comments
Milestone
3.5.3

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@cmadsen
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cmadsen commented Nov 22, 2024

JLabel html rendering changes font size with java 17 using flatlaf 3.5.2

JLabel l1 = new JLabel("Destination");
String htmlDestination = "<HTML><A HREF=http://destination>Destination</A></HTML>";
JLabel l2 = new JLabel(htmlDestination);

unnamed

Without flatlaf

unnamed

The following code can be used to reproduce the issue:

import static javax.swing.SwingUtilities.*;

import java.awt.Font;

import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;

import org.jdesktop.swingx.JXFrame;

import com.formdev.flatlaf.FlatLightLaf;

import net.miginfocom.swing.MigLayout;

public class FlatLafTextFieldHtmlIssue extends JXFrame {

	public FlatLafTextFieldHtmlIssue() {
		try {
			UIManager.setLookAndFeel(new FlatLightLaf());
		} catch (Exception e) {
			e.printStackTrace();
		}
		JPanel p = new JPanel(new MigLayout());
		JLabel l1 = new JLabel("Destination");
		p.add(l1, "wrap");
		String htmlDestination = "<HTML><A HREF=http://destination>Destination</A></HTML>";
		JLabel l2 = new JLabel(htmlDestination);
		p.add(l2, "wrap");
		getContentPane().add(p);
		Font f1 = l1.getFont();
		Font f2 = l2.getFont();
		System.out.println(f1);
		System.out.println(f2);
		setTitle("Flat Laf Html Text Issue");
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		pack();
		setVisible(true);
	}

	public static void main(String[] args) {
		invokeLater(() -> {
			new FlatLafTextFieldHtmlIssue();
		});
	}

}
@DevCharly
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Which operating system do you use?

@cmadsen
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cmadsen commented Nov 22, 2024

Fedora 40, KDE, Xorg session

DevCharly added a commit that referenced this issue Dec 4, 2024
@DevCharly
Linux: fixed slightly different font size (or letter width) used to p…
3f33543 
…aint HTML text when default font family is _Cantarell_ (e.g. on Fedora) (issue #912)

the removed use of floating point font size is similar to what is done in JDK for GTK Look and Feel:
- https://bugs.openjdk.org/browse/JDK-6979979
- openjdk/jdk@306f12d
@DevCharly
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Fixed in latest 3.5.3-SNAPSHOT: https://github.com/JFormDesigner/FlatLaf#snapshots

@DevCharly DevCharly added this to the 3.5.3 milestone Dec 4, 2024
@DevCharly DevCharly changed the title JLabel html rendering changes font size Linux: JLabel html rendering changes font size Dec 4, 2024
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@cmadsen @DevCharly