458972 - Words are sometimes rendered for the wrong language

Status: NEW

(Core :: Graphics, defect)

Description

[Karl Tomlinson (:karlt)]

Attachment: testcase

STR:

  Edit intl/locale/src/langGroups.properties:

  -mk=x-cyrillic
  +mk=mk

  View attachment:

Expected results:

  lang=en: render according to LANGUAGE environment variable and locale,
           defaulting to same as ru.
  lang=ru: render with normal glyphs
  lang=mk: render with Macedonian glyphs

Actual results:

  Words that have already been rendered with one language are rendered the same
  way with other languages.  The unique words render as expected.

Comment 1

[Karl Tomlinson (:karlt)]

I suspect that this is due to the gfxTextRunWordCache keying words with the
font, but, on Linux the font does not depend on the language (only the use of
the font does).

Possible solutions:
1) include the language in the word cache key
2) create a different font for each language

Comment 2

[Damjan Georgievski]

I can't confirm the problem you are describing, the single letters in lank=mk display correctly the same as in the unique string.


Mozilla/5.0 (X11; U; Linux i686; mk; rv:1.9.0.3) Gecko/2008092416 Firefox/3.0.3
(this is a Mozilla build)
GTK 2.14.3
Glib 2.18.1
Pango 1.22.0
Cairo 1.8  (but Fx doesn't use the system Cairo isn't it)

Comment 3

[Damjan Georgievski]

Attachment: how it looks for me

Comment 4

[Karl Tomlinson (:karlt)]

(In reply to comment #2)
> I can't confirm the problem you are describing, the single letters in lank=mk
> display correctly the same as in the unique string.
> 
> Mozilla/5.0 (X11; U; Linux i686; mk; rv:1.9.0.3) Gecko/2008092416 Firefox/3.0.3

I suspect the issue only shows up in builds after bug 404857 was fixed.
That would include Firefox 3.1 Beta 1.

Comment 5

[Karl Tomlinson (:karlt)]

This bug still exists even though we no longer have a gfxTextRunWordCache.