Package com.formdev.flatlaf

Interface FlatSystemProperties

  • public interface FlatSystemProperties
    Defines/documents own system properties used in FlatLaf.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String ANIMATION
      Specifies whether animations are enabled.
      static java.lang.String MENUBAR_EMBEDDED
      Specifies whether menubar is embedded into custom window decorations.
      static java.lang.String UI_SCALE
      Specifies a custom scale factor used to scale the UI.
      static java.lang.String UI_SCALE_ENABLED
      Specifies whether user scaling mode is enabled.
      static java.lang.String USE_JETBRAINS_CUSTOM_DECORATIONS
      Specifies whether JetBrains Runtime custom window decorations should be used when creating JFrame or JDialog.
      static java.lang.String USE_TEXT_Y_CORRECTION
      Specifies whether vertical text position is corrected when UI is scaled on HiDPI screens.
      static java.lang.String USE_UBUNTU_FONT
      Specifies whether Ubuntu font should be used on Ubuntu Linux.
      static java.lang.String USE_WINDOW_DECORATIONS
      Specifies whether custom look and feel window decorations should be used when creating JFrame or JDialog.

    • Method Summary

      Static Methods 
      Modifier and Type Method Description
      static boolean getBoolean​(java.lang.String key, boolean defaultValue)
      Checks whether a system property is set and returns true if its value is "true" (case-insensitive), otherwise it returns false.
      static java.lang.Boolean getBooleanStrict​(java.lang.String key, java.lang.Boolean defaultValue)
      Checks whether a system property is set and returns Boolean.TRUE if its value is "true" (case-insensitive) or returns Boolean.FALSE if its value is "false" (case-insensitive).

    • Field Detail

      • UI_SCALE

        static final java.lang.String UI_SCALE
        Specifies a custom scale factor used to scale the UI.

        If Java runtime scales (Java 9 or later), this scale factor is applied on top of the Java system scale factor. Java 8 does not scale and this scale factor replaces the user scale factor that FlatLaf computes based on the font. To replace the Java 9+ system scale factor, use system property "sun.java2d.uiScale", which has the same syntax as this one.

        Allowed Values e.g. 1.5, 1.5x, 150% or 144dpi (96dpi is 100%)

        See Also:
        Constant Field Values

      • UI_SCALE_ENABLED

        static final java.lang.String UI_SCALE_ENABLED
        Specifies whether user scaling mode is enabled.

        Allowed Values false and true
        Default true

        See Also:
        Constant Field Values

      • USE_UBUNTU_FONT

        static final java.lang.String USE_UBUNTU_FONT
        Specifies whether Ubuntu font should be used on Ubuntu Linux. By default, if not running in a JetBrains Runtime, the Liberation Sans font is used because there are rendering issues (in Java) with Ubuntu fonts.

        Allowed Values false and true
        Default false

        See Also:
        Constant Field Values

      • USE_WINDOW_DECORATIONS

        static final java.lang.String USE_WINDOW_DECORATIONS
        Specifies whether custom look and feel window decorations should be used when creating JFrame or JDialog.

        If this system property is set, FlatLaf invokes JFrame.setDefaultLookAndFeelDecorated(boolean) and JDialog.setDefaultLookAndFeelDecorated(boolean) on LaF initialization.

        (requires Window 10)

        Allowed Values false and true
        Default none

        See Also:
        Constant Field Values

      • USE_JETBRAINS_CUSTOM_DECORATIONS

        static final java.lang.String USE_JETBRAINS_CUSTOM_DECORATIONS
        Specifies whether JetBrains Runtime custom window decorations should be used when creating JFrame or JDialog. Requires that the application runs in a JetBrains Runtime (based on OpenJDK).

        Setting this to true forces using JetBrains Runtime custom window decorations even if they are not enabled by the application.

        (requires Window 10)

        Allowed Values false and true
        Default true

        See Also:
        Constant Field Values

      • MENUBAR_EMBEDDED

        static final java.lang.String MENUBAR_EMBEDDED
        Specifies whether menubar is embedded into custom window decorations.

        (requires Window 10)

        Allowed Values false and true
        Default true

        See Also:
        Constant Field Values

      • ANIMATION

        static final java.lang.String ANIMATION
        Specifies whether animations are enabled.

        Allowed Values false and true
        Default true

        See Also:
        Constant Field Values

      • USE_TEXT_Y_CORRECTION

        static final java.lang.String USE_TEXT_Y_CORRECTION
        Specifies whether vertical text position is corrected when UI is scaled on HiDPI screens.

        Allowed Values false and true
        Default true

        See Also:
        Constant Field Values

    • Method Detail

      • getBoolean

        static boolean getBoolean​(java.lang.String key,
                          boolean defaultValue)
        Checks whether a system property is set and returns true if its value is "true" (case-insensitive), otherwise it returns false. If the system property is not set, defaultValue is returned.

      • getBooleanStrict

        static java.lang.Boolean getBooleanStrict​(java.lang.String key,
                                          java.lang.Boolean defaultValue)
        Checks whether a system property is set and returns Boolean.TRUE if its value is "true" (case-insensitive) or returns Boolean.FALSE if its value is "false" (case-insensitive). Otherwise defaultValue is returned.