Problem determining stage coordinates immediately after scrolling

Question

Hello all,
I have a graphical component and I am trying to obtain it's coordinates relative to the stage by using the localToGlobal or contentToGlobal methods.
My problem is when scrolling a Container, these methods do not return the correct values, but return the old unshifted coordinates of the graphical component. Later, after everything seems stable, when trying to use the methods they return correct value so this means at the time where I use them after scrolling
not all information necessary in computing have been commited.
For the case of the Container class I have investigated and although it passes through the scrollChildren method, the computation is wrong.
For the case of the Tree component when scrolling with the wheel, the methods return correct value, but when pressing the arrow button of the scroll-bar the methods return incorrect value.
Until now I have tried to listen the scroll and the update complete events when they are dispatched but without any success.
So my problem is that after scrolling I would need to know a moment(event to be listened or something else) that I can call the methods and the output to be ok.I would like the final solution to be uniform.
Did anybody else had this problem? What solution do you recommend me.
Thank you all for your time and patience,
Claude Bur.

Answer 1

Hello,
I have tested the ENTER_FRAME event and indeed when computing stage coordinates using those methods, correct results are returned.
I have a component that it "attaches" itself near another component and my component must be a child of the stage. There problem with using the ENTER_FRAME event is that although it is positioned correctly near the other component, the user can observe with the eye a slight delay. I interpret it as because in the ENTER_FRAME phase the screen is allready in a final drawn state, I just react to a screen "after" draw event and not to a screen "before" draw event, which would give me the posibility to alter it by making my own changes.
I have made a test adding those 20-50 events to be listened and I have observed that the first moment where the computation of the stage coordinates is correct is the ENTER_FRAME event. Unless there are other events I have not listened it seems there is no uniform solution to determine the correct
stage coordinates after a scroll and before the "drawing" to be made on the screen.
Have you other sugestions please?
Thank you for your time,
Claude Bur.