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Bug 107221 - Support 'vrtr' feature
Summary: Support 'vrtr' feature
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
(earliest affected)
Hardware: All All
: medium enhancement
Assignee: Not Assigned
Depends on:
Blocks: Font-Rendering
  Show dependency treegraph
Reported: 2017-04-17 07:50 UTC by Volga
Modified: 2017-12-08 09:54 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


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Description Volga 2017-04-17 07:50:27 UTC
OpenType has vrtr feature used for vertical layout, according the specification, this feature transforms default glyphs into glyphs that are appropriate for sideways presentation in vertical writing mode. While the glyphs for most characters in East Asian writing systems remain upright when set in vertical writing mode, glyphs for other characters — such as those of other scripts or for particular Western-style punctuation — are expected to be presented sideways in vertical writing. 

Steps to Reproduce:

Actual Results:  

Expected Results:

Reproducible: Always

User Profile Reset: 

Additional Info:

User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:53.0) Gecko/20100101 Firefox/53.0
Comment 1 Buovjaga 2017-04-27 17:10:43 UTC
Sounds cool -> NEW
Comment 2 Volga 2017-06-14 12:06:23 UTC
HarfBuzz refused to implement this feature, so we have do it ourselves. See:
Comment 3 Mark Hung 2017-12-08 09:54:09 UTC

Is there any font that use this feature but failed to work in LibreOffice?