On 18.05.2007, at 12:32, Abdelrazak Younes wrote:
Andreas Neustifter wrote:
Hi,
I recently switched from 1.4.4 to 1.5.0 beta 2 and was really
pleased by the math toolbar that made writing math oriented stuff
much faster and easier for me. This toolbar alone is the reason
why I want to stick to 1.5.
Unfortunately I experienced the following problem:
As long as i was editing a paragraph with no math inside
everything was fine, but as soon as there was one math object in
the paragraph, the editing was very slow, typed characters got
inserted into the document at about one character per second.
(iBook G4 with 1.5G RAM, OS X 10.4.9)
I fired up the Quartz Debug.app from the Developer Apps and found
that while editing a paragraph without math, only the paragraph
itself and the scrollbar got updated. As soon as i inserted a math
environment LyX started to update the whole text area after each
keystroke. (When I deleted the math, again only the paragraph part
of the screen is updated.)
I compiled QT 4.2.3 and LyX myself today and its the same with
1.5.0 beta 3. Can anyone point me to the relevant sources so I can
have a look at it myself?
In principle the single paragraph painting optimization should work
even if there's some math in there provided that you are not within
math. At least this used to work so I guess something has changed
in this area lately.
Concerning your speed problem, I can recommend two things that will
bring you a lot of speed:
1) Enable "Instant Preview"
2) Use Qt4.3
Abdel.
Thanks, that really helped a lot. If "Instant Preview" is on, only
the paragraph is updated regardless if there is math inside or not.
So no reasonable speed concerns now.
I still will try to use QT 4.3 but it takes ages to compile and it
will take some time to evaluate with QT4.3.
astifter
