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Drag and drop from palette and view [message #190150]

Thu, 29 May 2008 16:50

Amro Al-Akkad

Messages: 33
Registered: July 2009

Member

hi!

I know somehow partly this question has been asked several times,
nevertheless I feel lost after checking threads in the current and old
newsgroup.

I have to provide drag and drop functionality for two things.

1)from palette (GEF palette): there for some elements drag and drop must
be provided, though not for all as for example for Connection Tools.
2)from a View containing a component list representing a component
repository-I'm going to use a List or Tree, or ScrolledComposite for this.

For 1) I tried to find out, if it is possible to define this in the
gmftool definition, but could not find a hint.

I saw the geoshapes editor providing drag and drop and selecting for some
elements. Unfortunately I could not find out how it was implemented.
Further I've discovered the
'org.eclipse.gmf.runtime.common.ui.services.dnd.dragDropList enerProviders',
but don't exactly know how to use it.

I've done this tutorial
( http://www.eclipse.org/articles/Article-GEF-dnd/GEF-dnd.html), but I'm
still not able to adapt it to my code.

From my point of view a GMF example project showing how to establish
drag&drop for the above mentioned points or sth similar would be quite
helpful?
Further I can upload any code to support this discussion.

Any help is appreciated!

Regards,
Amro

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Example showing/explaining Drag and drop from palette and view into editor [message #191020 is a reply to message #190150]

Wed, 04 June 2008 14:50

Amro Al-Akkad

Messages: 33
Registered: July 2009

Member

hi!

Does someone know an example project,
where you can see how they realized Drag'n'Drop?
In eclipse community this 'monkey see, monkey do' approach is quite
common,
but i could not find an appropriate example project.
I need to drag from:
- palette (tool palette) to the editor, and
- a tree, which is kept in a different view

and drop into the editor.
Any hints are great?

Regards,
Amro

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Re: Example showing/explaining Drag and drop from palette and view into editor [message #192664 is a reply to message #191020]

Sat, 14 June 2008 18:36

Axel Guckelsberger

Messages: 354
Registered: July 2009

Senior Member

Hi Amro.

> I need to drag from:
> - palette (tool palette) to the editor
Try to hold Ctrl while clicking and dragging the palette entry

HTH

Axel

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Re: Example showing/explaining Drag and drop from palette and view into editor [message #192696 is a reply to message #192664]

Sun, 15 June 2008 08:52

Amro Al-Akkad

Messages: 33
Registered: July 2009

Member

hi Axel!

this does not really work, and further it's not how D'n'D is supposed to
work.

It's a pity, that there is no good support for this kind of standard
functionality. I'd have expected to find an explanation in one of the
'getting started' tutorial.
...hmm, you can't always get what you wa-a-ant :(

Regards,
Amro

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