Path: utzoo!utgpu!watserv1!watmath!att!pacbell!pacbell.com!decwrl!ucbvax!ANDREW.CMU.EDU!ajp+
From: ajp+@ANDREW.CMU.EDU (Andrew Palay)
Newsgroups: comp.soft-sys.andrew
Subject: Re: speed of drawing text under OW 2.0
Message-ID: <catuXDq00VsS8gi1ZI@andrew.cmu.edu>
Date: 7 Sep 90 14:03:59 GMT
References: <4atO1xMB0KGW45dd89@holmes.parc.xerox.com>
Sender: daemon@ucbvax.BERKELEY.EDU
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The problem with using DrawImageText is that it draws both the
foreground and the background.  This works well when using a font where
the width of each character in the font encompasses all the bits of the
font (thus there is no overlapping of character bounding boxes).  This
is not the case for most of the fonts that we use and thus DrawImageText
would often eliminate portions of other characters.  One could say that
this isn't the case for typescript where you are using a fixed width
font, but some people don't use a fixed width font in typescript and to
special case drawing of text in this way will probably be difficult.

Andy