180103 - ÷, ±, × displayed too small in Japanese

Status: RESOLVED WORKSFORME

(Core :: Internationalization, defect)

Description

[HARUNAGA Hirotoshi]

Division sign(÷), Plus-minus sign(±),
Multiplication sign(×) in Japanese page are displayed too small.
Division sign is displayed small also in tab's titlebar.

testcase:
http://bugzilla.mozilla.gr.jp/attachment.cgi?id=1288&action=view

screenshot:
http://bugzilla.mozilla.gr.jp/attachment.cgi?id=1289&action=view

Confirming with 2002111308-trunk/MacOS 9.2.2.
Windows build (2002110408-trunk/WinNT) doesn't have this problem.

Comment 1

[Yuying Long]

OS X has the same problem.

Comment 2

[Jo Hermans]

Attachment: screenshot of keycaps

I don't see what the problem is. I've included a screenshot of the same
characters in Keycaps using the Arial typeface (except ×, because I
didn't found it on my keyboard :-). This font is nothing special, no Unicode,
just normal characters in the ISO-8859-1 characters set.

As you can see, both ÷ and ± are both a lot smaller than the
other characters, but that's because they're defined like that in this font.
Each font is different, but in general ÷ always stayed small, while
± was sometimes small (like in Arial or Helvetica) and sometimes large
(like in Geneva or Palatino).

Note that a font isn't necessarily the same on a Mac as on Windows, even when
they have the same name (typeface). There are always subtile differences.

Comment 3

[Niklas Dougherty]

Attachment: screen dump Mac OS X

The problem is that the operators have different weights and sizes. They are
inconsistently rendered and not from the same font family. Not that this is new
for Mozilla on Mac OS X...

Carbon gives these kind of troubles, and the remedy is simple: ATSUI.

Comment 4

[HARUNAGA Hirotoshi]

Attachment: screenshot on IE 5.1.6/MacOS 9.2.2

IE 5.1.6 and NC 4.7 on OS 9.2.2 don't have this problem.

Comment 5

[Jo Hermans]

another dupe of bug 121540 ... solving that one won't be easy, see bug 157967

Comment 6

[Simon Montagu :smontagu]

nhotta, can you take this and dupe if you agree with comments 3 and 5? I don't
know enough about Mac in general and ATSUI in particular to assess this.

Comment 7

[HARUNAGA Hirotoshi]

Attachment: screenshot on FreeBSD

A similar problem happens in tab's title bar on FreeBSD.
I think this is not Mac specific.
Something problem in font searching?

Comment 8

[Frank Tang]

looks like we are using roman font or symbol font for that but use Japanese font
for other characters. 

Comment 9

[HARUNAGA Hirotoshi]

Changing to OSX since reproduced with 2003040209/MacOS 10.2.3.

Comment 10

[HARUNAGA Hirotoshi]

These characters are displayed as same as Safari 3.1.1 on 
Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9) Gecko/2008061004 Firefox/3.0.

Marking WFM.