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Synchronized scrollbars [message #75009]

Wed, 20 February 2008 14:30

Emmanuel Marchal

Messages: 59
Registered: July 2009

Member

Hi,

What is the easiest way to synchronize the ScrollBar of two
ScrolledComposite ? I tried to set the same ScrollBar to the two
composites but there is no way to do that...
I tried to listen one of them with a SelectionListener which sets the
origin of the other at the same origin of the current... It works fine but
only once... The following selectionChanges are only listened when my
ViewPart looses the focus. Is there a good reason for that ?
(composite.redraw() or .layout() does not have any effect)

Thanks,

Emmanuel

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Re: Synchronized scrollbars [message #75343 is a reply to message #75009]

Mon, 25 February 2008 10:17

Eclipse User

Originally posted by: rherrmann.innoopract.com

Hi Emmanuel,

your second approach (listening to SelectionEvents) should work.
Feel free to file a bug report, ideally with a code attached that
demonstrates the misbehavior.

Cheers,
Rüdiger

Emmanuel wrote:
> Hi,
>
> What is the easiest way to synchronize the ScrollBar of two
> ScrolledComposite ? I tried to set the same ScrollBar to the two
> composites but there is no way to do that...
> I tried to listen one of them with a SelectionListener which sets the
> origin of the other at the same origin of the current... It works fine
> but only once... The following selectionChanges are only listened when
> my ViewPart looses the focus. Is there a good reason for that ?
> (composite.redraw() or .layout() does not have any effect)
>
> Thanks,
>
> Emmanuel
>

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Re: Synchronized scrollbars [message #75912 is a reply to message #75343]

Wed, 27 February 2008 14:35

Emmanuel Marchal

Messages: 59
Registered: July 2009

Member

Hi again,

I think that the following bug can be the cause of my problem :
https://bugs.eclipse.org/bugs/show_bug.cgi?id=157058

I observe that my listener does not catch no more selectionEvent after the
first catching. Indeed I call the method setOrigin in my listener. It
seems to be the reason...

Any idea of a bug fix ?

thanks, Emmanuel

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