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  1. JDK
  2. JDK-4808567

RFE: Swing Windows L&F should honour desktop font smoothing settings.

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    • Icon: Enhancement Enhancement
    • Resolution: Duplicate
    • Icon: P3 P3
    • None
    • 1.4.2, 5.0
    • client-libs
    • x86
    • linux, windows_xp

      All versions of MS windows support a desktop "font smoothing" setting.
      This controls how Windows anti-aliases text. In addition XP allows a user
      to choose the font smoothing algorithm, one value being the standard setting,
      the other being appropriate for LCD display technology.

      To properly emulate the L&F of the native desktop, Swing needs to read
      and obey these settings, to the fullest extent that the JDK can support.

      I believe AWT needs to provide this information via the desktop
      properties and Swing read it and use it to set the TEXT_ANTIALIASING hint on
      all Swing component graphics. The AWT RFE is 4808569


      ###@###.### 2003-03-06

      CAP member reports the same problem:
      ----------------------------------------
      J2SE Version (please include all output from java -version flag):
        java version "1.4.2-beta"
        Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-beta-b16)
        Java HotSpot(TM) Client VM (build 1.4.2-beta-b16, mixed mode)

      Does this problem occur on J2SE 1.3 or 1.4?
        Not applicable.

      Operating System Configuration Information (be specific):
        Stock Redhat Linux 8.0
       
      Hardware Configuration Information (be specific):
        Compaq Armada (i.e. notebook with LCD monitor).

      Bug Description:
        The GTK+ L&F doesn't respect font smoothing settings, which may make the
        default font totally illegible. The Java VM also doesn't seem to pick up
        fonts from e.g. ~/.fonts like all the "real" GTK+ apps do these days on
        Redhat. This can, of course, also trigger a font mismatch.

        Their customers dont use the the "default font" in gnome at all since it
        cannot be reliably rendered - and rather go for the oldfashioned GTK1 look
        and current behaviour (displaying an illegible font) is quite broken.
        Swing won't look like the rest of gnome anyway when anti-aliasing is on in
        the latter, so it might at least be usable...

        Ideally, of course, Java would use Xft2 and Fontconfig directly under X
        (where available).

        As a stop gap measure, perhaps it would be better to avoid trying to use
        the same font as GTK+ when font smoothing is activated, and go for a
        known, legible font instead in this case.


      Steps to Reproduce (be specific):
        Choose "Sans 8" (or, even worse, "Sans 7") in Gnome's "Font Preferences"
        panel, as well as "Subpixel smooting (LCDs)". Run SwingSet2, choose GTK+
        L&F. Texts becomes illegible, and looks absolutely nothing at all like
        the original.

            svioletsunw Scott Violet (Inactive)
            prr Philip Race
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