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Created attachment 438145 [details] 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
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
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.
Created attachment 438356 [details] 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.
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.
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
Any updates on this?
Move forward this bug to Fedora 15, and track this bug.
Any updates after that?
No updates yet.
Hi Qianqian Fang, Any progress in the wqy-zenhei-fonts upstream?
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This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle. Changing version to '19'. (As we did not run this process for some time, it could affect also pre-Fedora 19 development cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.) More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora19
Is there an upstream bug for the fontforge issue?
Also does fontforge2 help with this at all?
(In reply to Jens Petersen from comment #16) > Also does fontforge2 help with this at all? Or latest fontforge anyway?
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