CLIM mail archive
Translations and a fast highlight-output-record for lines
Date: Wed, 13 Jul 1994 10:33 PDT
From: Scott McKay <email@example.com>
Date: Wed, 13 Jul 1994 09:21-0700
From: Gregory M Anderson <firstname.lastname@example.org>
In light of the discussion on replaying output records and the
difficulty in getting the translations correct, will the following
function always translate correctly, or have I just been lucky?
This should work, but the performance won't be as good as it could be.
((record clim-internals::lines-output-record) stream state)
(declare (ignore state))
(multiple-value-bind (xoff yoff)
stream (output-record-parent record))
(with-translation (stream xoff yoff)
(with-drawing-options (stream :ink +flipping-ink+
:line-style (make-line-style :thickness 2))
(with-slots (clim-internals::position-seq) record
(medium-draw-lines* stream clim-internals::position-seq)))))))
It's a whole lot faster than the default line highlighting -- but how could the
performance be improved?
Main Index |