Issue 125314

Summary: Fuzzy text rendering under OS X
Product: Writer Reporter: Emir Sarı <emir_sari>
Component: viewingAssignee: AOO issues mailing list <issues>
Status: UNCONFIRMED --- QA Contact:
Severity: Normal    
Priority: P3 CC: emir_sari, orcmid, shamilton2014
Version: 3.4.0Keywords: needmoreinfo
Target Milestone: ---   
Hardware: Mac   
OS: Mac OS X 10.7   
Issue Type: DEFECT Latest Confirmation in: 4.1.1
Developer Difficulty: ---

Description Emir Sarı 2014-07-27 17:20:42 UTC
AOO text rendering on OS X is inferior compared to Apple's Pages, or any other modern Mac application (excluding LibreOffice). 

Here are the issues I've encountered using AOO:

Especially with small font sizes, bottoms parts of the glyphs are rendered fuzzily.

When selecting paragraphs, texts shift up or down. 

Sometimes, glyphs are rendered like sliced horizontally, omitting at least 3-4 pixels high. 

I'll provide screenshots later on, but I think everyone using AOO on Mac platform had experienced these issues once in a while.
Comment 1 Ariel Constenla-Haile 2014-07-27 18:23:11 UTC
Are you reporting this using 3.4.0?

That version is no longer maintained, it does not make sense to report Mac specific issues against this version, because since 4.1 OpenOffice has switched to a different architecture (64 bit on MacOSX), different compiler, different API for text rendering.
Comment 2 Emir Sarı 2014-07-27 18:38:51 UTC
No, this is the first version that the problem has seen (actually it predates back to OOo beta for Mac), that's why I've entered the version as 3.4.0. 

Reproducible with 4.1.0.
Comment 3 Emir Sarı 2014-07-27 18:40:51 UTC
And yes, AOO uses CoreText now, but it still does not prevent these errors from happening; if we compare with NeoOffice for example, NeoOffice has crisp clear text rendering, but AOO still has fuzzy bottoms and not rendered glyph parts.
Comment 4 Emir Sarı 2014-07-27 18:52:19 UTC
NeoOffice text rendering (with OS X zoom feature):

http://i.imgur.com/1kkx24q.jpg

AOO text rendering (with OS X zoom feature):

http://i.imgur.com/7Gb7qzF.jpg

Uploaded to imgur, file size was too large for both.
Comment 5 Ariel Constenla-Haile 2014-07-27 19:08:19 UTC
(In reply to Emir Sarı from comment #2)
> No, this is the first version that the problem has seen (actually it
> predates back to OOo beta for Mac), that's why I've entered the version as
> 3.4.0. 
> 
> Reproducible with 4.1.0.

Thanks for the clarification. I will raise the version to 4.1.0, because of the explanation on comment 1. Please adjust the OS version in the Hardware field (4.1.0 does not run in 10.4)
Comment 6 Emir Sarı 2014-07-30 08:10:43 UTC
Any Mac users out there to confirm?
Comment 7 Shauna-Kay Hamilton 2015-10-07 03:38:07 UTC
Operating System and Version: Macintosh OS X El Capitan (10.11)

Apache OpenOffice 4.1.1 AOO411m6(Build:9775)  -  Rev. 1617669
Additional Software: Microsoft Word for Mac 2011 Version 14.0.0 (100825)
Pages version 5.5.3 (2152)


Fuzzy Text rendering using Mac zoom on OS X

Steps to Reproduce
Create a paragraph generated Lorem Ispum. 
Insert into Apache OpenOffice
Set the font type to Arial
Set font size to 6 
Enabled Mac Zoom feature
Hit the zoom 19 times [ Command + option + "=" ] 

Repeated the steps using Pages and Microsoft Word for Mac.

I replicated the issue, the text does have a fuzzier rendering compared to Pages. With using small fonts, it wasn't much of a difference with the rendering but Pages was much more legible. AOO was more of a group of colors to the naked eye. It would not be seen the same with the screenshot that were taken with a camera. 
The rendering from Pages was fuzzy but legible and did not get fuzzier when shifted up and down. The rendering on Microsoft Word for Mac was surprisingly poor. 

Rendered Text with Mac zoom enabled for AOO --> https://drive.google.com/file/d/0B-MIhfin-7OCTjhhZmxTaTd2QXc/view?usp=sharing

Rendered Text with Mac zoom enabled for Pages --> https://drive.google.com/file/d/0B-MIhfin-7OCU0VocC01R1JZNkE/view?usp=sharing

Rendered Text with Mac zoom enabled for Microsoft Word for Mac --> https://drive.google.com/file/d/0B-MIhfin-7OCaldJY21oREZyb3M/view?usp=sharing
Comment 8 orcmid 2015-11-15 17:54:41 UTC
(In reply to Shauna-Kay Hamilton from comment #7)
> Operating System and Version: Macintosh OS X El Capitan (10.11)
> 
> Apache OpenOffice 4.1.1 AOO411m6(Build:9775)  -  Rev. 1617669
> Additional Software: Microsoft Word for Mac 2011 Version 14.0.0 (100825)
> Pages version 5.5.3 (2152)
> 
> 
> Fuzzy Text rendering using Mac zoom on OS X
[ ... ]

It is unclear whether Mac Zoom is a factor in the original report.  And that Mac Zoom demonstrates problems with other applications may be a problem with Mac Zoom and not individual applications, such as Word for Mac 2011.  (Now one can try Word for Mac 2016, too.)

Can anyone confirm this with OpenOffice 4.1.2 and using the default 100% without Mac zoom?

Or is Mac zoom always a factor?
Comment 9 orcmid 2015-11-15 18:00:12 UTC
(In reply to Emir Sarı from comment #2)
> No, this is the first version that the problem has seen (actually it
> predates back to OOo beta for Mac), that's why I've entered the version as
> 3.4.0. 
> 
> Reproducible with 4.1.0.

It is valuable to know that the defect appeared in 3.4.0, so I have changed tjat.  The "latest confirmed" does not go earlier than 4.1.1, so I have set that instead of 4.1.0.

I have seen defects of the kind described.  They are often cured by paging down and then paging back up.  I would suspect there is a problem in font scaling for the screen resolution but I never dug into it.  I noticed it at a time when working on some documents was the critical thing and I did nothing to figure out how to isolate/report a bug.

Some screen captures (PNG, not JPEG) uploaded as attachments would help us focus on exactly what the problem is and not confuse it with some similar but different problem.