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- Path: sparky!uunet!hayes!bcoleman
- From: bcoleman@hayes.com (Bill Coleman)
- Newsgroups: comp.sys.mac.programmer
- Subject: Re: Alg. for Detection of Monspaced Fonts
- Message-ID: <6549.2b2df65a@hayes.com>
- Date: 15 Dec 92 15:14:34 EDT
- References: <scott.724029618@phylo> <6534.2b28a410@hayes.com> <de19-141292204941@mac06-pg2.umd.edu>
- Followup-To: comp.sys.mac.programmer
- Organization: Hayes Microcomputer Products, Norcross, GA
- Lines: 65
-
- In article <de19-141292204941@mac06-pg2.umd.edu>, de19@umail.umd.edu (Dana S Emery) writes:
- > In article <6534.2b28a410@hayes.com>, bcoleman@hayes.com (Bill Coleman)
- > wrote:
- >>
- >> In article <scott.724029618@phylo>, scott@phylo.life.uiuc.edu (Scott Howard) writes:
- >> > My Application requires that all fonts it uses are monospaced
- >> > and will allow the user to choose display fonts that meet that
- >> > requirement.
- >>
- >> Perhaps your application needs to be rewritten to allow proportional fonts
- >>
- >> I ran into this in 1984. Our solution was to create our own fonts. Today the
- >> better solution is to support proportional fonts.
- >
- > ??? This is an issue of UI, some user will want to specify monospaced fonts
- > for certain situations.
-
- True, but he was asking for a way for his program to only display
- monospaced fonts. That implies the user got only a selection of monospaced
- fonts because the program can't support proportional fonts.
-
- > Computer code, Email and plaintext documents often look best when rendered
- > in a monospaced font, especially when they contain tabular material which
- > was laid out using a monospaced font.
-
- True. And the selection of several fonts will often prove that the
- monospaced ones look "right." There's no need for the program to single
- this out (mainly because they can't, really).
-
- > The user is not always knowledgable as to what fonts are monospaced, and
- > program help is often considered welcome for this.
-
- Perhaps this type of information is better regulated to the "help" and
- documentation portions of the program, not the code?
-
- > Anyway, to determine if a font is monospaced, one must decide/determine if
- > international fonts are to be supported. If not, then one has only to
- > exclude symbolic fonts (by FOND ID range), and incomplete fonts (by
- > inspection of the FontRec structure), and then compare selected characters
- > (say "WWWMMMiii".
-
- Why not just check all the characters for the same width? (At least for all
- Roman scripted characters, the standard Apple 256 character set should do)
- Why narrow the choices to merely W, M and i? After all, if you display
- something with a punctuation character that is narrow or wider in your
- fixed-pitch display, it is going to look funny, too.
-
- > Short of a comitment from Apple, I hesitate to offer a strategy for
- > international fonts, those which are discused in Apples literature are
- > amenable to the test given above, but I suspect that some font will someday
- > be invented which would fool it.
- >
- > BTW, dont try to analyse the entirety of ALL fonts, some are rather a bit
- > larger than you would think :-).
-
- 256 characters doesn't seem TOO bad.
-
- --
- Bill Coleman, AA4LR ! CIS: 76067,2327 AppleLink: D1958
- Principal Software Engineer ! Packet Radio: AA4LR @ W4QO
- Hayes Microcomputer Products, Inc. ! UUCP: uunet!hayes!bcoleman
- POB 105203 Atlanta, GA 30348 USA ! Internet: bcoleman%hayes@uunet.uu.net
- Disclaimer: "My employer doesn't pay me to have opinions."
- Quote: "The same light shines on vineyards that makes deserts." -Steve Hackett.
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