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Re: [ft-devel] more Unicode character blocks for CJK autofitting
From: |
Werner LEMBERG |
Subject: |
Re: [ft-devel] more Unicode character blocks for CJK autofitting |
Date: |
Thu, 07 Apr 2011 09:41:26 +0200 (CEST) |
> About the update of the coverage for CJK autofitter, the block for
> "Ideographic Description Character" is (scheduled to be) added. It
> is unclear if there are existing implementation of OpenType renderer
> to make a composite glyph by IDC (I guess, if there are such, they
> are quite minority and experimental systems), but their isolated
> shapes are something like "Box Drawing" (U+2500 - U+257F) by broken
> lines. So, I guess, there is no serious requirement to apply the
> hinting to IDC glyphs.
Well, handling of IDCs is beyond FreeType. Similar to the reordering
of Indic and Arabic characters, this must be handled at a higher
level. If Freetype actually sees character codes of the IDC block, it
should render them as-is. Thus I believe it makes sense to add them
to the CJK ranges of the autofitter.
Werner