reducing time overhead of text display (in 1.1)

• To: gadbois@cs.utexas.edu, suthers+@pitt.edu
• Subject: reducing time overhead of text display (in 1.1)
• From: Scott McKay <SWM@stony-brook.scrc.symbolics.com>
• Date: Mon, 20 Dec 1993 16:44 -0500
• Cc: clim@BBN.COM
• In-Reply-To: <9312182122.AA13204@peaches.cs.utexas.edu>

    Date: Sat, 18 Dec 1993 16:22 EST
    From: David Gadbois <gadbois@cs.utexas.edu>

    We had a similar problem with a display that involved scads of text.
    Metering revealed that the code was spending most of its time just
    creating and installing output records.  We ended up bagging
    CLIM:DRAW-TEXT and instead creating one big presentation that covered
    the whole output area, using low-level text drawing primitives to do
    the output, and doing our own mouse tracking in the highlighting
    method for the big presentation.  Pretty gross, but the display was
    unacceptably slow otherwise.

I have seen the results of this admittedly kludgy solution, and they are
very good.  The UI in question is quite speedy.

    --David Gadbois

• reducing time overhead of text display (in 1.1)
• From: David Gadbois <gadbois@cs.utexas.edu>

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