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Create a new EditPart with ToolEntry is forbidden? [message #554054]

Thu, 19 August 2010 18:03

Eclipse User

Hi,

We have a GEF/GMF based editor (ext. DiagramDocumentEditor). To add EditParts to our diagram we use tools (ext. ToolEntry). We had a tool, that create a new EditPart by clicking on an other and links the new one to it.
Our problem is that we can do this only one time. After that a forbidden sign is showing and we had to move the mouse cursor to get back in the insert mode.
On the screenshot your can see this behavior.

http://img441.imageshack.us/img441/1407/screenjb.png

What can we do to repair this. Tools? EditPolicy?

Thank You!

Re: Create a new EditPart with ToolEntry is forbidden? [message #556442 is a reply to message #554054]

Wed, 01 September 2010 07:14

Eclipse User

I found out why the forbidden sign is showing. The forbidden sign is showing always if EditPolicy.getCommand(request) is returning null.
I debug and found the following application flow:

[we are in insert mode]

- LayoutEditPolicy.getCommand(CreateChildRequest) 
	return CompoundCommand

- LayoutEditPolicy.showTargetFeedback()

[Mouse clicked, new node is creating, forbidden sign is showing]

- LayoutEditPolicy.eraseTargetFeedback()

- LayoutEditPolicy.getCommand(ConnectionStartRequest)
	return null

- LayoutEditPolicy.getCommand(ConnectionEndRequest)
	return null

[we had to move the mouse, we are back in the insert mode]

- LayoutEditPolicy.showTargetFeedback()

- LayoutEditPolicy.getCommand(CreateChildRequest) 
	return CompoundCommand

How can we get back in the insert mode and create new CreateChildRequests? Rolling Eyes

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