Re: How to get NSGlyph from unichar?
Re: How to get NSGlyph from unichar?
- Subject: Re: How to get NSGlyph from unichar?
- From: Magnus Strand <email@hidden>
- Date: Tue, 15 Feb 2005 11:34:16 +0100
Thanks, I will try to do this with NSLayoutManager, because I
need to calculate width of kerned text.
Magnus
Douglas Davidson wrote:
On 2005-02-14 01:43:49 -0800 Magnus Strand <email@hidden> wrote:
||But I don't know how to make a NSGlyph from a unichar, except when
it is a-z when
you can use the character directly as name for glyphWithName method?
There is no simple to-one mapping from characters to glyphs. The
glyph used depends on the font and potentially also on the context of
the character within the text. One character may map to multiple
glyphs, or multiple characters may map to a single glyph. In the
Cocoa text system, the mapping is managed by NSLayoutManager, which
calls upon NSGlyphGenerator to perform a first-pass mapping, which may
subsequently be modified during layout by NSTypesetter. You can use
NSGlyphGenerator directly, but it may be more convenient to use an
NSLayoutManager to manage the process.
Douglas Davidson
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