[news.eclipse.tools.gef] Re: Added new figures to the diagram.

["Pratik Shah" <ppshah@xxxxxxxxxx>]

getModelChildren() should return an empty list when the node is collapsed,
and the actual children when the node is expanded.  You'll have to invoke
refreshChildren() when a node is collapsed/expanded.

"slam" <jsk_lam@xxxxxxxxxxx> wrote in message
news:cnisov$r5m$1@xxxxxxxxxxxxxxxxxx
> Hi,
>
> I have a model which contains a hierarchy structure of nodes.  Everything
> works fine if I create
> all the node objects in the method
> AbstractEditorPage#createGraphicalViewer()  and the GEF
> EditPartFactory#createEditorPart() will eventually be invoked to create
the
> edit part for all the
> nodes.
>
> But the diagram is so complex, I would like to only create the first level
> of nodes and let the
> user click on a specific node and expand it to show all the children
nodes.
> In this case, I do
> not create all the nodes in the
AbstractEditorPage#createGraphicalViewer(),
> and only add
> those children nodes to the diagram when the parent node is expanded.
>
> I only call GraphicalViewer.setContents(diagram) in
> AbstractEditorPage#createGraphicalViewer()
> when the editor page is first loaded. How do I added those new children
> nodes to my diagram
> and invoke the EditPartFactory#createEditorPart() to create the
> editparts/figures for those new
> nodes?  By the way, I am not using any palette at all.
>
> Thanks
> slam
>
>