Issue 84297 - The "left [" and "right ]" chars lose horizontal lines in screen display
Summary: The "left [" and "right ]" chars lose horizontal lines in screen display
Status: CLOSED DUPLICATE of issue 99047
Alias: None
Product: Math
Classification: Application
Component: ui (show other issues)
Version: OOo 2.3
Hardware: All Windows XP
: P3 Trivial (vote)
Target Milestone: ---
Assignee: nospam
QA Contact: issues@sw
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-12-06 05:54 UTC by sjohannes
Modified: 2013-08-07 14:54 UTC (History)
3 users (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---

Attachments
Actual output, 100% zoom (461 bytes, image/png)
2007-12-06 05:54 UTC, sjohannes 		no flags Details
Actual output, 150% zoom (625 bytes, image/png)
2007-12-06 05:55 UTC, sjohannes 		no flags Details
Actual output, 200% zoom (766 bytes, image/png)
2007-12-06 05:55 UTC, sjohannes 		no flags Details
Actual output, 250% zoom (926 bytes, image/png)
2007-12-06 05:55 UTC, sjohannes 		no flags Details
New Version 1.12 of OpenSymbol Font (109.55 KB, application/octet-stream)
2008-06-02 15:32 UTC, nospam 		no flags Details
100% zoom with OpenSymbol 1.12 (640 bytes, image/png)
2008-06-04 08:32 UTC, sjohannes 		no flags Details
New version 1.13 of OpenSymbol Font (109.55 KB, application/octet-stream)
2008-06-05 17:15 UTC, nospam 		no flags Details
New Version 1.2 of OpenSymbol Font (174.62 KB, application/octet-stream)
2008-06-16 09:49 UTC, nospam 		no flags Details
sample Math doc (5.15 KB, application/vnd.oasis.opendocument.formula)
2008-07-07 15:49 UTC, michael.ruess 		no flags Details
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this issue.
Description sjohannes 2007-12-06 05:54:06 UTC 
The test case is:
a[i] = a left [ i right ]

Depending on the zoom level, it may lose the lower line, upper line, both, or
none. See the attached screenshots (at 100%, 150%, 200%, and 250% zoom).

This is problematic because the chars look like the ceil/floor/abs function.

The bug only affects screen output; the PDF export looks alright.

(Tested in 2.3.1, but currently the BTS doesn't have that version.)
Comment 1 sjohannes 2007-12-06 05:54:49 UTC 
Created attachment 50141 [details]
Actual output, 100% zoom
Comment 2 sjohannes 2007-12-06 05:55:09 UTC 
Created attachment 50142 [details]
Actual output, 150% zoom
Comment 3 sjohannes 2007-12-06 05:55:26 UTC 
Created attachment 50143 [details]
Actual output, 200% zoom
Comment 4 sjohannes 2007-12-06 05:55:47 UTC 
Created attachment 50144 [details]
Actual output, 250% zoom
Comment 5 michael.ruess 2007-12-07 09:42:41 UTC 
MRU->TL: could you please have a look? In certain zoom levels, the small
horizontal part of the "left [" and "right ]" brackets is not displayed. I was
only able to reproduce this with the OpenSymbol font while the StarSymbol seems
to work fine. Maybe it is the same problem as issue Issue 66848?
Comment 6 thomas.lange 2007-12-07 09:57:51 UTC 
Can't be fixed without a new font.
This an similar issues with - or = chars have been optimized more than once now.
But the actual problem is that the OpenSymbol font does not use hinting (in
contrast to the StarSymbol font). To solve this we need a new font for
OpenOffice that uses hinting to avoid such problems.

Setting target to OOo 3.0 since it was planned at some time to have a new
OpenOffice font at that release. (Don't know the current state though)
Comment 7 thomas.lange 2008-05-30 10:55:19 UTC 
TL->IH: Since I do not know about the current state of affairs for a new font
and if that one will implement hinting, please take over until things are clear.
Thanks!
Comment 8 nospam 2008-06-02 11:23:34 UTC 
IH: will be fixed in the next extras CWS for OOo3.0
Comment 9 nospam 2008-06-02 15:32:00 UTC 
Created attachment 54173 [details]
New Version 1.12 of OpenSymbol Font
Comment 10 nospam 2008-06-02 15:33:23 UTC 
please test with the attached new version of the font...
Comment 11 sjohannes 2008-06-04 08:32:33 UTC 
Created attachment 54226 [details]
100% zoom with OpenSymbol 1.12
Comment 12 sjohannes 2008-06-04 08:35:54 UTC 
It works slightly better.... See the attachment, generated from the same test 
case: a[i] = a left [ i right ]
Comment 13 nospam 2008-06-05 17:13:27 UTC 
please check my latest version 1.13 of the opensymbol font...
Comment 14 nospam 2008-06-05 17:15:36 UTC 
Created attachment 54270 [details]
New version 1.13 of OpenSymbol Font
Comment 15 nospam 2008-06-16 09:49:22 UTC 
Created attachment 54506 [details]
New Version 1.2 of OpenSymbol Font
Comment 16 nospam 2008-06-16 09:49:56 UTC 
please test the latest release of the font ...
Comment 17 nospam 2008-07-02 09:46:26 UTC 
no more test comments here?
Comment 18 sjohannes 2008-07-04 05:25:20 UTC 
Sorry, forgot to reply. Yeah, it seems to work perfectly now with v1.2. Thanks 
for looking into this.
Comment 19 michael.ruess 2008-07-07 15:41:48 UTC 
MRU->IH: this leads to the fact, that these parts of the scalable brackets
sometimes look too big. This was also tzhe case before, but IME this became
worse. See my attached test case.
Comment 20 michael.ruess 2008-07-07 15:49:12 UTC 
Created attachment 54982 [details]
sample Math doc
Comment 21 nospam 2008-07-07 16:13:50 UTC 
ih->mru: this is not a problem of the font and can not be fixed in this bug
Comment 22 nospam 2008-07-21 12:54:56 UTC 
Since not everybody is satisfied with my fix this one will not make it into 3.0
Comment 23 nospam 2009-03-09 14:58:44 UTC 
same problem - and will be fixed with #99047 by adding TT-Hinting to the font



*** This issue has been marked as a duplicate of 99047 ***
Comment 24 michael.ruess 2009-04-06 12:58:59 UTC 
Closing duplicate.