Qt-interest Archive, July 2006
avoiding multiple updates (flicker) ?
Message 1 in thread
I have a window with two frames in it.
only one frame is visible at the time, the other
one is hidden. They are both in a gridlayout.
Doing the following results in delayed (!) flicker:
win->setUpdatesEnabled(false);
win->frame1->hide();
win->frame2->show();
win->setUpdatesEnabled(true);
looks like that the changed geometry-calculations
are done at updatetime. :-(
can I force these calculations to be done in
my function above to avoid the flicker?
thank you.
Andreas.
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Message 2 in thread
just a question to be sure...
why don't you put this two frames in a QStackedLayout to switch from one
to other?
Andreas Wagner a écrit :
> I have a window with two frames in it.
> only one frame is visible at the time, the other
> one is hidden. They are both in a gridlayout.
>
> Doing the following results in delayed (!) flicker:
>
> win->setUpdatesEnabled(false);
> win->frame1->hide();
> win->frame2->show();
> win->setUpdatesEnabled(true);
>
> looks like that the changed geometry-calculations
> are done at updatetime. :-(
> can I force these calculations to be done in
> my function above to avoid the flicker?
>
> thank you.
> Andreas.
>
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Message 3 in thread
veronique.lefrere@xxxxxx wrote:
> why don't you put this two frames in a QStackedLayout to switch from one
> to other?
hey cool! didn't know about the QStackedWidget before!
Using itsolves my problem!
But it would be interesting anyway how to reduce the
flicker in the other case.
Thank you veronique!
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