Class LinuxFontPolicy

java.lang.Object

com.formdev.flatlaf.LinuxFontPolicy

class LinuxFontPolicy
extends Object

Constructor Summary

Constructors

Constructor	Description
LinuxFontPolicy()

Method Summary

Modifier and Type	Method	Description
private static Font	createFontEx(String family, int style, int size)	Create a font for the given family, style and size.
private static String	getConfigEntry(List<String> config, String group, String key)
(package private) static Font	getFont()
private static Font	getGnomeFont()	Gets the default font for Gnome.
private static double	getGnomeFontScale()
private static Font	getKDEFont()	Gets the default font for KDE from KDE configuration files.
private static boolean	isSystemScaling()	Returns true if the JRE scales, which is the case if: - environment variable GDK_SCALE is set and running on Java 9 or later - running on JetBrains Runtime 11 or later and scaling is enabled in system Settings
private static String	mapFcName(String name)	map GTK/fontconfig names to equivalent JDK logical font name
private static List<String>	readConfig(String filename)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LinuxFontPolicy

LinuxFontPolicy()

Method Details

getFont

static Font getFont()

getGnomeFont

private static Font getGnomeFont()

Gets the default font for Gnome.

createFontEx

private static Font createFontEx(String family,
 int style,
 int size)

Create a font for the given family, style and size. If the font family does not match any font on the system, then the last word (usually a font weight) from the family name is removed and tried again. E.g. family 'URW Bookman Light' is not found, but 'URW Bookman' is found. If still not found, then font of family 'Dialog' is returned.

getGnomeFontScale

private static double getGnomeFontScale()

mapFcName

private static String mapFcName(String name)

map GTK/fontconfig names to equivalent JDK logical font name

getKDEFont

private static Font getKDEFont()

Gets the default font for KDE from KDE configuration files. The Swing fonts are not updated when the user changes system font size (System Settings > Fonts > Force Font DPI). An application restart is necessary. This is the same behavior as in native KDE applications. The "display scale factor" (kdeglobals: [KScreen] > ScaleFactor) is not used KDE also does not use it to calculate font size. Only forceFontDPI is used by KDE. If user changes "display scale factor" (System Settings > Display and Monitors > Displays > Scale Display), the forceFontDPI is also changed to reflect the scale factor.

readConfig

private static List<String> readConfig(String filename)

getConfigEntry

private static String getConfigEntry(List<String> config,
 String group,
 String key)

isSystemScaling

private static boolean isSystemScaling()

Returns true if the JRE scales, which is the case if: - environment variable GDK_SCALE is set and running on Java 9 or later - running on JetBrains Runtime 11 or later and scaling is enabled in system Settings