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setDragDetect method [message #647975]

Mon, 10 January 2011 16:14

Opfermann C

Messages: 53
Registered: July 2009
Location: Annecy

Member

Hi,

I was using the Treeviewer#setDragDetect method in an RCP application and wanted to use it in the RAP application.
But this method doesn't exists.

Is there a descent way to have the same behaviour ? (ie. remove the drag feature from a component).

Thanks,

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Re: setDragDetect method [message #648011 is a reply to message #647975]

Mon, 10 January 2011 18:36

Rüdiger Herrmann

Messages: 335
Registered: July 2009

Senior Member

Cedric,

setDragDetect is a method on Control and currently not available in RAP.
The recommended way to enable DND in JFace viewers is by using
StructuredViewer#addDragSupport and addDropSupport.

You may open an enhancement request if you think that you have a valid
use case for setDragDetect.

BTW, are you aware of these two articles?
http://www.eclipse.org/articles/Article-SWT-DND/DND-in-SWT.h tml
http://www.eclipse.org/articles/Article-Workbench-DND/drag_d rop.html

HTH
Rüdiger

On 10.01.2011 17:14, Opfermann C wrote:
> Hi,
>
> I was using the Treeviewer#setDragDetect method in an RCP application
> and wanted to use it in the RAP application.
> But this method doesn't exists.
>
> Is there a descent way to have the same behaviour ? (ie. remove the drag
> feature from a component).
>
> Thanks,

Report message to a moderator

Re: setDragDetect method [message #648101 is a reply to message #648011]

Tue, 11 January 2011 09:06

Opfermann C

Messages: 53
Registered: July 2009
Location: Annecy

Member

Thank you for your response.

Actually, the setDragDetect method was used with a "false" parameter. This is used in some cases to disable the drag behaviour from a control.

So, in RAP, there is a method to add the drag (addDragSupport), there is nothing to remove the drag feature. (like removeDragSupport).

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Re: setDragDetect method [message #648133 is a reply to message #648101]

Tue, 11 January 2011 11:25

Rüdiger Herrmann

Messages: 335
Registered: July 2009

Senior Member

On 11.01.2011 10:06, Opfermann C wrote:
> Thank you for your response.
>
> Actually, the setDragDetect method was used with a "false" parameter.
> This is used in some cases to disable the drag behaviour from a control.
Feel free to open an enhancement request if you need a way to 'globally'
disable DND.
In the meanwhile you can use the DragSourceListener#dragStart() event to
prevent dragging.

>
> So, in RAP, there is a method to add the drag (addDragSupport), there is
> nothing to remove the drag feature. (like removeDragSupport).
These APIs aren't specific to RAP, they are provided by JFace.

>

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