Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!uflorida!stat!fsu!loligo!pepke
From: pepke@loligo (Eric Pepke)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: HyperCard Glitches
Message-ID: <372@fsu.scri.fsu.edu>
Date: 17 Nov 89 15:10:14 GMT
References: <29692.2560C5F9@cmhgate.FIDONET.ORG>
Sender: news@fsu.scri.fsu.edu
Reply-To: pepke@loligo.UUCP (Eric Pepke)
Organization: Supercomputer Computations Research Institute
Lines: 39

In article <29692.2560C5F9@cmhgate.FIDONET.ORG> Adam.Lesh@f102.n269.z1.FIDONET.ORG (Adam Lesh) writes:
>2)  I have some locked, fields which contain text on the character
>sheet.  
>One looks like:
>I
>t
>e
>m
>s
>When I print the card, sometimes this field is not font smoothed and
>comes out bit mapped.  If I turn on the graphics smoothing option this
>problem goes away on the regular Apple Laserwriters, but not on other
>printers.

HyperCard has a nefarious feature about printing text in fields.  Normally
it prints text normally, which means that the regular QuickDraw text drawing
calls are made to the printer port, so LaserWriter fonts get printed out at
LaserWriter resolution, and if Font Substitution is checked, many screen
fonts are printed using a reasonable approximation of the font by a 
LaserWriter font, which is usually acceptable.

However, when there are graphics over the field, and HyperCard determines
heuristically that the graphics *have a chance* of overlapping the text,
the entire text field is printed as a bit map.  What happens is that HC
converts the text to bits and then combines the bits with the graphics bits
that it thinks might overlap them.

A single opaque white pixel can be the culprit.  These are very easy to put
in by accident and very hard to detect.  So, to get rid of the problem, fully
erase, or make white and transparent, the entire area over the field.  Also,
of course, make sure you have Font Substitution checked.

Eric Pepke                                     INTERNET: pepke@gw.scri.fsu.edu
Supercomputer Computations Research Institute  MFENET:   pepke@fsu
Florida State University                       SPAN:     scri::pepke
Tallahassee, FL 32306-4052                     BITNET:   pepke@fsu

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