[Mono-bugs] [Bug 569011] New: Winforms i18n font rendering/substitution draws non-ASCII text as squares

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Thu Jan 7 19:07:11 EST 2010



           Summary: Winforms i18n font rendering/substitution draws
                    non-ASCII text as squares
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.4.x
          Platform: All
        OS/Version: Ubuntu
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: libgdiplus
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: novell at paul.sladen.org
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---

Created an attachment (id=335482)
 --> (http://bugzilla.novell.com/attachment.cgi?id=335482)
i18n minimal test case

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:
Gecko/20091215 Ubuntu/10.04 (lucid) Firefox/3.5.6

Forwarded from  http://launchpad.net/bugs/503759

All Unicode/non-ASCII text glyphs (accented Latin characters, mathematical
symbols, CJK characters) are rendered by as squares.  The machine in question
has sufficient fonts, but for Winforms-based applications these non-Latin
characters are not being displayed.

Examples of characters affected: "çêñ / ▸ / ¹ / 中文 / 日本語 / 한국어".

This happens with Libgdiplus 2.4.2;  the previous Libgdiplus 2.0 (shipped in
Ubuntu 09.04) was fine; the issue could equally be in
Pango/Cairo/Fontconfig---but only shows up in the case of Mono software.

Note that this is occuring with the _default_ font;  the .Font has not been

Reproducible: Always

Steps to Reproduce:
Attached minimal test case and screenshot demonstrate this.

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