99173 - Mail window cuts off lower portion of font if I scroll down the list

Status: RESOLVED DUPLICATE of bug 86532

(Core :: XUL, defect)

Description

[J.B. Nicholson]

By scrolling down the list (I used the down arrow key to do this) I can always
make the mail/news window chop off the lower part of the font for whatever list
is being rendered in the left or right mail/news front-end panel.

Reproducible: Always
Steps to Reproduce:
1. Open Mail/News.
2. Login to various mail & news accounts if necessary.
3. Click on a newsgroup or mail account where there are a lot of entries (a lot
of e-mail or a lot of news postings).  In the attached snapshots, I used
news.mozilla.org's netscape.public.mozilla.win32.
4. (optional but this drives the point home) Click on the content view so you
can't see the e-mail message or news posting (the border might require sliding
to reveal the clickable handle).  Now you should see only lists (the list of
accounts on the left and the list of mail or news articles on the right).
5. Click once on the topmost entry in the list of e-mail or articles.
6. Hold down the down arrow key to scroll the selection bar down.
7. Watch as the list becomes almost illegible.

Actual Results:  The list became illegible because the fonts weren't rendered
properly.

Expected Results:  I expected the list to remain fully legible.

To work around it you'll need to force a redraw of the mail/news front-end
window.  One way to do this is by resizing the mail/news window.  This
particular bug makes the list hard to read.  If you happen to use a font for
these lists where the distinguishing characteristic of glyphs is in the lower
1/3rd or 1/4th of the glyph, you might not be able to read the list so easily.

As an example of what I'm talking about, see the attached screen grabs
before.png and after.png.

Comment 1

[J.B. Nicholson]

Attachment: The before screen capture cropped to show the damage to the font.

Comment 2

[J.B. Nicholson]

Attachment: After scrolling (cropped to highlight the damage to the rendered font).

Comment 3

[Håkan Waara]

Interesting!

Definitely an <outliner/> problem though.

Comment 4

[John Morrison]

Sorry, I can't reproduce this. Can you tell me what the font settings that 
you are using on win32 for the various UI elements (i.e., is that Arial Black,
or what? 9pt, 10pt?? different settings in different elements?)

Comment 5

[J.B. Nicholson]

In this scheme (Windows' name for the appearance panel settings in the display
control panel) here are the font settings and sizes.  What I'm calling the "UI
size" in the table below corresponds to what is called "size" (located
immediately to the right of the item name).

Item                Font & size   UI size
------------------- ------------- -------
Active title bar    Tahoma 12     31
Icon                Tahoma 10     50
Inactive title bar  Tahoma 12     31Menu                Tahoma 10     26
Message box         Tahoma 10     (size isn't set for this item)
Palette title       Tahoma 10     26
Selected items      Tahoma 10     26
Tooltip             Tahoma 10     (size isn't set for this item)

None of the remaining items have the ability to have fonts assigned to them.  I
have the scheme saved but I have no idea where Windows 2000 saves these schemes.
 If someone would point that out to me I could attach the scheme as a file and
anyone who wants to duplicate *all* my appearance items can do so.

Comment 6

[Hal Black]

This is a duplicate of 86532, which has been fixed in the latest nightly build.

Comment 7

[Jan Varga [:janv]]

Reporter, could you verify that ?

Comment 8

[J.B. Nicholson]

Marked as duplicate.  This bug appears to be fixed too, so whee!

*** This bug has been marked as a duplicate of 86532 ***