[Fedora-i18n-bugs] [Bug 623085] New: Rendering error for Chinese character using wqy-zenhei

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Summary: Rendering error for Chinese character using wqy-zenhei

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Summary: Rendering error for Chinese character using wqy-zenhei
           Product: Fedora
           Version: 13
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: medium
          Priority: low
         Component: wqy-zenhei-fonts
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
         QAContact: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail], [e-mail]
    Classification: Fedora

Created an attachment (id=438145)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=438145)
Screenshot of rendering error using wqy-zenhei

Description of problem:
The rendering of Chinese character 榷 using font wqy-zenhei is not correct

Version-Release number of selected component (if applicable):
wqy-zenhei-fonts-0.9.45-5.fc13

How reproducible:
Input Chinese character 榷 in gedit and set fonts to wqy-zenhei

Steps to Reproduce:
1. Open gedit
2. Input Chinese character 榷 using any Chinese input method
3. Click "Edit"->"Preferences", open the preferences dialogue window 
4. In "Font & Colours" tab, set fonts to WenQuanYi Zen Hei

Actual results:
Part of the character is rendering to whole black without the structure, and
can not distinguish the stroke. See the screen shot in attachment

Expected results:
The stroke of the character should be distinguished

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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--- Comment #1 from James Ni  2010-08-12 02:04:43 EDT ---
There are also other Chinese characters that have same issues as the Chinese
character 榷. I try to list some characters below:
榷 㘃 㞈 㟯 㫥 㺟 㻾 䆶 䉟 䑾 䚙 䚤 䧴 䨖 䭌 䭑 䯋 䰋 匷 憴 撨 潗 痏 瘷 硩 穛 籊 虇 蛕 蟭 褜 詺 趭 踇 陏 雈 敱 氍 爘

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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https://bugzilla.redhat.com/show_bug.cgi?id=623085

--- Comment #2 from Peng Wu  2010-08-12 02:39:10 EDT ---
Note this bug only exists when use antialias font.
And the problem for "榷" is that, some part of the contour of the fonts is
wrong.
Take "榷" for example, the inner contour directions of some strokes is wrong.

In True Type, the outside contour is clock-wise, but the inner contour is anti
clock-wise.
I will upload a picture to display the changes made for "榷".
And it seems render ok now.

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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--- Comment #3 from Peng Wu  2010-08-12 02:43:05 EDT ---
Created an attachment (id=438356)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=438356)
Changes made to the "榷" glyph.

Marked the changes with red circles.
The left is the old glyph, the right is the modified glyph.
Only changes the directions of the inner contours.

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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--- Comment #4 from Peng Wu  2010-08-20 01:54:12 EDT ---
Hi Qianqian Fang,
  Could you fixes these glyphs in upstream wqy-zenhei-fonts?
Thanks in advance,
  Peng Wu

PS:
  In the truetype font, by following the contour direction, the right side of
contour is considered inward of the glyph.

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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--- Comment #5 from Qianqian Fang  2010-08-20 09:03:07 EDT ---
This is not an easy fix. Essentially, this is a result of RemoveOverlap() in
Fontforge. Quoted from GWW, the author of Fontforge, this part of the code is
the "buggiest". Especially, for CJK glyphs, this function generates incorrect
contours. Unless someone look into this code and fix it in fontforge, this will
comeback even we can manually correct these glyphs in the font file.

http://fontforge.sourceforge.net/elementmenu.html#Remove
http://wenq.org/forum/viewtopic.php?f=6&t=613

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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Akira TAGOH  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]
               Flag|                            |needinfo?

--- Comment #6 from Akira TAGOH  2011-05-24 09:01:08 EDT ---
Any updates on this?

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

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Peng Wu  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|needinfo?                   |

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

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--- Comment #9 from Peng Wu  2011-05-25 22:28:52 EDT ---
Move forward this bug to Fedora 15, and track this bug.

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

Please do not reply directly to this email. All additional
comments should be made in the comments box of this bug.

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Peng Wu  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|13                          |15

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Akira TAGOH  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |needinfo?([e-mail])

--- Comment #10 from Akira TAGOH  ---
Any updates after that?

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Peng Wu  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|15                          |16
              Flags|needinfo?([e-mail])   |

--- Comment #11 from Peng Wu  ---
No updates yet.

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Peng Wu  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |needinfo?([e-mail])

--- Comment #12 from Peng Wu  ---
Hi Qianqian Fang,
  Any progress in the wqy-zenhei-fonts upstream?

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=623085

--- Comment #13 from Fedora End Of Life  ---
This message is a reminder that Fedora 16 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=623085

Peng Wu  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|16                          |rawhide

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Jens Petersen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]
                   |                            |ect.org, [e-mail],
                   |                            |[e-mail],
                   |                            |[e-mail]
          Component|wqy-zenhei-fonts            |fontforge
           Assignee|[e-mail]            |[e-mail]

--- Comment #15 from Jens Petersen  ---
Is there an upstream bug for the fontforge issue?

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

--- Comment #16 from Jens Petersen  ---
Also does fontforge2 help with this at all?

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Jens Petersen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|19                          |20

--- Comment #17 from Jens Petersen  ---
(In reply to Jens Petersen from comment #16)
> Also does fontforge2 help with this at all?

Or latest fontforge anyway?

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Jens Petersen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|[e-mail]             |[e-mail]

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

--- Comment #18 from Fedora End Of Life  ---
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Approximately 4 (four) weeks from now Fedora will stop maintaining
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[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Peng Wu  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|20                          |22

[Fedora-i18n-bugs] [Bug 623085] Rendering error for Chinese character using wqy-zenhei

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=623085

Fedora End Of Life  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |EOL
        Last Closed|                            |2016-07-19 16:50:13

--- Comment #19 from Fedora End Of Life  ---
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is
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