Re: [gef-dev] SWT / Draw2d Events

[Manuel SELVA <manuel.selva@xxxxxx>]

Randy Hudson a écrit :
> Do you have a drag source? See this bug:
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=10420
> But in my head I though this was no longer an issue.
>
> -Randy
>
>
>
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>              Manuel SELVA                                                  
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>              07/19/2007 04:18          [gef-dev] SWT / Draw2d Events       
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>
> Hi all,
>
> I am having a very strange behaviour, (i suppose i my own code) dealing
> with Draw2d events inside a very large chart.
>
> I created an eclipse view which contents is mainly a FigureCanvas
> containing a lot of rectangle figures. These figures are "selectable" at
> Draw2D sense (click on it enlarge and change the color of the border)
> and at Eclipse sense (it fires a SelectionChanged event). My problem is
> the following :
>
> Sometimes (always reproductible on the first click) the listener on the
> "clicked figure" is only notified after about 1 second ... this is too
> longgggg for a user interface operation. Of course i had an inkling on
> my code, for example an other listener notified before the instersting
> one performing some long operation.
> But after a lot of tests here is my conclusion :
>
>     i can't understand anything .... can't find where this 1 second is
> lost ... I putted a simple System.out.print in the internal class of
> LightWheightSystem
>     EventHandler (in mouseDown method before dispatching the event)  and
> noticed that it also about takes one second to come here !!!
>     Does it mean that SWT is responsible for the problem, can't think
> such a thing since when my chart doesn't contain many figure this
> doesn't hapen ...
>
> Does anybody already reach such a problem or have an idea where it may
> come from ?
>
> Thanks in advance
>
> Manuel Selva
>
>
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No i am not dealing at all with SWT DND.
Is the test previously described (consisting of adding system.out to 
lighweightsystem event handler) proves that the bug is not in my code ?

Thanks

Manuel