471732 - Hollow and filled star characters (★ ☆) are different sizes

Status: NEW

(Core :: Layout: Text and Fonts, defect)

Description

[Hafthor Stefansson]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.5) Gecko/2008120121 Firefox/3.0.5
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.5) Gecko/2008120121 Firefox/3.0.5

Expected these two characters to render as the same size which they do on Safari (Mac+Win+iPhone), FF on Win, IE7, Chrome and Opera - when zoomed in it appears that the widths of these two characters differ for some reason.

Reproducible: Always

Steps to Reproduce:
1. Create html that displays the two characters at the same screen position
2. Render

Actual Results:  
The two characters render as if they were two different font sizes - their centers don't align

Expected Results:  
Would expect them to render with centers aligned because they should be the same size

Comment 1

[Nochum Sossonko [:Natch]]

Attachment: testcase

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5
This WFM on Win Vista (don't have a mac). Seems like it may be a font problem? Can you try with a different font?

Comment 2

[Hafthor Stefansson]

The problem does not occur on FF for Win or Safari for Mac - only FF for Mac.
The problem occurs for three different fonts tested including a monospaced font.
I don't think the font choice matters. I have updated the test page at http://hafthor.parsus.com/stars.htm to include the three fonts.

Comment 3

[Steven Michaud [:smichaud] (Retired)]

I can confirm this in FF 3.0.5 and yesterday's Minefield and Shiretoko
nightlies on OS X 10.5.6 and 10.4.11.  I can also confirm that this
problem doesn't happen on Windows or Linux.

Even though this happens with multiple fonts, I suppose it must
ultimately be a fonts problem ... though I've no idea what kind of
problem.

Comment 4

[Cameron McCormack (:heycam)]

Bumped into this problem again, with different characters:

  data:text/html,∈∉

Should the fallback font selected for individual glyphs vary within a run of text like that?  Looks kind of ugly.  I have no idea what actual fonts are being selected there (or if I can actually determine that easily).  I'm on Win7, with not a particularly exotic set of fonts installed.