Duration is between 5 and 7 milliseconds per matrix when setting "ORIGIN"
attribute.
Le mercredi 2 décembre 2020 à 16:02:11 UTC+1, Johann Philippe via Iup-users
<iup-users@lists.sourceforge.net> a écrit :
Dear all,
I'm using several IupMatrix (more than 10, can be up to 20) in my musical
application (on Linux, mint 20), and those matrixes can have a lot of lines.
I noticed that scrolling is a bit slow when I scroll with mouse wheel.And it's
even worst when the scrolling is done programatically with the "ORIGIN"
attribute.
When I say slow, I mean it's more than a few milliseconds, which is a big deal
in a musical software, where many graphic elements are redrawn at something
like 30 frame per second. In some context, the matrixes "ORIGIN" attribute can
be reset several times per second, which is slowing the other graphical
elements.
Is it related to the IupMatrix itself ?
Is there a quicker way to scroll programatically? Is the "SHOW" attribute
quicker ? And if so, I couldn't find a way to make it work.
Thank you !
Johann
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