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Selection tracking versus cursor tracking [message #334501]

Thu, 12 February 2009 20:47

Eclipse User

Originally posted by: bim2009.basistech.com

I've got a case where I need a view to reflect the cursor position, not just
the selection, of an editor. Adding the NullSelectionListener interface has
the effect of getting me a notification when the selection goes from
something to nothing, but not of notifying me of further cursor movement.
Should I just implement my own notification structure for this?

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Re: Selection tracking versus cursor tracking [message #334502 is a reply to message #334501]

Thu, 12 February 2009 21:53

Karl

Messages: 10
Registered: July 2009
Location: USA

Junior Member

Benson,

You will probably have to register a MouseMoveListener on the underlying
SWT control.

Benson Margulies wrote:
> I've got a case where I need a view to reflect the cursor position, not just
> the selection, of an editor. Adding the NullSelectionListener interface has
> the effect of getting me a notification when the selection goes from
> something to nothing, but not of notifying me of further cursor movement.
> Should I just implement my own notification structure for this?
>

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Re: Selection tracking versus cursor tracking [message #334506 is a reply to message #334502]

Fri, 13 February 2009 08:51

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

Karl Koster wrote:
> Benson,
>
> You will probably have to register a MouseMoveListener on the
> underlying SWT control.
Don't do this. You should not update immediately on caret move. You can
use a post selection listener which will give you the caret location.

Dani
>
>
> Benson Margulies wrote:
>> I've got a case where I need a view to reflect the cursor position,
>> not just
>> the selection, of an editor. Adding the NullSelectionListener
>> interface has
>> the effect of getting me a notification when the selection goes from
>> something to nothing, but not of notifying me of further cursor
>> movement.
>> Should I just implement my own notification structure for this?
>>

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