[Bug 492510] New: Regression: wqy-bitmap-fonts preferred font over truetype fonts

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Fri Mar 27 05:15:16 UTC 2009

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Summary: Regression: wqy-bitmap-fonts preferred font over truetype fonts


           Summary: Regression: wqy-bitmap-fonts preferred font over
                    truetype fonts
           Product: Fedora
           Version: rawhide
          Platform: All
        OS/Version: Linux
            Status: NEW
          Keywords: i18n
          Severity: medium
          Priority: low
         Component: wqy-bitmap-fonts
        AssignedTo: fangqq at gmail.com
        ReportedBy: wtogami at redhat.com
         QAContact: extras-qa at fedoraproject.org
                CC: petersen at redhat.com, fangqq at gmail.com,
                    fedora-fonts-bugs-list at redhat.com,
                    fedora-i18n-bugs at redhat.com
    Classification: Fedora
    Target Release: ---

Failure Case 1: gramps PDF generation
gramps is a genealogy application that generates PDF charts.  It seems to ask
pango to choose fonts for it based upon given glyphs.

* In Fedora 10, it successfully output charts using entirely truetype fonts.
* In Fedora 11 however, the UTF-8 Chinese characters are rendered in PDF as
bitmap fonts, which do not scale properly and are ugly compared to the truetype

Behdad proposes this bug upstream, which would workaround this type of issue at
least for vector rendering cases like PDF generation.  I am uncertain if this
is correct though, and it creates possibly inconsistent behavior?

Failure Case 2: pango-view
Here is a similar way to reproduce this bug:
LANG=en_US.utf8 pango-view --text "日本語 test" --font "100"
LANG=zh_CN.utf8 pango-view --text "日本語 test" --font "100"

English pango renders the Chinese characters as ugly bitmap.
Chinese pango renders the Chinese characters as truetype.

Workaround: uninstall wqy-bitmap-fonts
Both of the above problems go away if you uninstall wqy-bitmap-fonts.  But this
should not be necessary.

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