Folks:

I am creating CGFonts using
CGFontCreateWithPlatformFont for all our text
drawing.

Initially, I recreate the CGFont each time to
draw a piece of text. This turned out to be bad
at least for the PDF conversion done by Quartz
(as accessible via the print dialog): the
resulting PDFs contain a separate embedded font
subset for each time CGFontCreateWithPlatformFont
is called. This can result in ridiculously large
and slow PDFs.

Now I am caching the CGFonts as I create them,
using a mapping against ATSFontRefs. Works
beautifully, but do I need to be concerned about
resource use? Like restricting the number of
fonts in the cache to some upper number? Or is it
best (certainly it is easiest) just to keep any
CGFont around once it is created until the
program exists?

Note: I have a notification for font list changes
installed with ATSFontNotificationSubscribe and
handle this correctly, dropping fonts from the
cache which are no longer available.

Thanks,
Kai

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