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DnD Target accepting numerous types? [message #442797]

Mon, 13 September 2004 14:53

Eclipse User

Originally posted by: rthomas.pershing.com

Hi, I've read the articles on DnD and have been able to implement several
custom Transfer types to work correctly. However now I'm stumped when
trying to implement a tree Target that accepts more than one custom Types.
Apparently, the target only recognizes the first Transfer type specified
in the array...

Am I missing something else that needs to be done in the Target class to
get this to recognize the other acceptable types as well?

Thanks.

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Re: DnD Target accepting numerous types? [message #442897 is a reply to message #442797]

Tue, 14 September 2004 20:21

Veronika Irvine

Messages: 1272
Registered: July 2009

Senior Member

When you set the targets on a drag source or a drop target, you pass in an
array of Transfer objects - each of which specifies a different type.

/**
* Specifies the list of data types that can be transferred by this
DragSource.
* The application must be able to provide data to match each of these types
when
* a successful drop has occurred.
*
* @param transferAgents a list of Transfer objects which define the types of
data that can be
* dragged from this source
*/
public void setTransfer(Transfer[] transferAgents)

In any of the drop target events (except drop) you can specify which of the
types available in dataTypes you would like to receive by setting the
currentDataType field of the event.

See also:
http://www.eclipse.org/articles/Article-SWT-DND/DND-in-SWT.h tml

"Roderick Thomas" <rthomas@pershing.com> wrote in message
news:ci4c8u$ba6$1@eclipse.org...
> Hi, I've read the articles on DnD and have been able to implement several
> custom Transfer types to work correctly. However now I'm stumped when
> trying to implement a tree Target that accepts more than one custom Types.
> Apparently, the target only recognizes the first Transfer type specified
> in the array...
>
> Am I missing something else that needs to be done in the Target class to
> get this to recognize the other acceptable types as well?
>
> Thanks.
>

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