Bug 2715

Summary: libxft is calculatint wrong width of CJK fonts
Product: xorg Reporter: Funda Wang <fundawang>
Component: Lib/XftAssignee: Keith Packard <keithp>
Status: RESOLVED INVALID QA Contact:
Severity: normal    
Priority: high Keywords: patch
Version: unspecified   
Hardware: x86 (IA32)   
OS: All   
Whiteboard: 2011BRB_Reviewed
i915 platform: i915 features:
Attachments:
Description Flags
Patch to libxft 2.1.6 none

Description Funda Wang 2005-03-12 16:04:13 UTC 
Currently, libxft is using font->public.max_advance_width to get the width of 
glyphs. But this is not the case in CJK environments. CJK fonts often include 
both full-width and half-width glyphs, while those glyphs are using different 
width of course. public.max_advance_width makes all the half-width glyphs become 
wider.
Comment 1 Funda Wang 2005-03-12 16:05:42 UTC 
Created attachment 2091 [details] [review]
Patch to libxft 2.1.6

Do not use public.max_advance_width to get the width of certain glyph, use
glyphslot->metrics.vertAdvance and glyphslot->metrics.horiAdvance instead.
Comment 2 Funda Wang 2005-03-18 14:09:02 UTC 
*** Bug 2716 has been marked as a duplicate of this bug. ***
Comment 3 Funda Wang 2005-10-17 22:25:16 UTC 
How is it going?
Comment 4 Funda Wang 2005-12-11 19:50:50 UTC 
Still valid in latest CVS.
Comment 5 Jeremy Huddleston Sequoia 2011-10-10 12:40:26 UTC 
If this is still an issue, can you please send your patch to xorg-devel for 
review?
Comment 6 Adam Jackson 2018-06-12 19:08:42 UTC 
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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