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DragAndDrop [message #228231]

Mon, 18 December 2006 08:50

Eclipse User

Originally posted by: daniel-p.gmx.de

Hi everybode,

I have some problems implementing DnD. I want to drag items from a view to
a graphical editor. That works fine with one item (I'm using the
'AbstractTransferDropTargetListener'). But now I want to be able to drag
and drop multiple items. The problem is on the TargetListener side,
because it internally request the objetc creation. so, do I have to
provide my own implmentation of a TargetDropListener or can I somehow use
the 'AbstractTransferDropTargetListener'?

Cheers,

Dan

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Re: DragAndDrop [message #228288 is a reply to message #228231]

Tue, 19 December 2006 06:54

Alex Boyko

Messages: 200
Registered: July 2009

Senior Member

Hi,

Perhaps you could extend AbstractTransferDropTargetListener and provide
your own implementation for #getObjectsBeingDropped(), i.e. get the
transfer object, cast it into Java object and then in StructuredSelection
probably... then you could examine what's in the selection and create a
list of objects that are being dropped in the graphical viewer (model
elements most likely). Then using these objects and mouse location a
request can be created and used to create the command by edit policies.
I'm not an expert in this area, but perhaps this would help.

Cheers,
Alex

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Re: DragAndDrop [message #228338 is a reply to message #228288]

Tue, 19 December 2006 16:05

Eclipse User

Originally posted by: daniel-p.gmx.de

Hi Alex,

Thanks for the idea. Now I've overriden the handleDrop event and create a
new request for each object being dropped and it works.

Thanks,

Dan

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