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GEF conditional multi selection? [message #244160]

Tue, 08 July 2008 03:08

Ben Xu

Messages: 20
Registered: July 2009

Junior Member

Does anybody implement the following requirement on GEF:

EditPart A contains EditPart B and EditPart C.

Each EditPart can be single selected from responding figure.(common in GEF)

Multi-Selcted EditPart must be at the same level. This means that:
B and C can be multi-selected.

A and B can't be multi-selected together.
(from viewer, you keydown ctrl key, use mouse to select A, and then try
top select B . B should not be selected since A and B are not in same
level and nothing happens on B's figure)

I can't find an easy common way to do this. It looks like GEF doesn't
provide such things. Anybody know?

Now, i am trying to customize a "SelectEditPartTracker" to do such things
:(

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Re: GEF conditional multi selection? [message #244201 is a reply to message #244160]

Wed, 09 July 2008 03:37

Ben Xu

Messages: 20
Registered: July 2009

Junior Member

solved this problem by customized a "GraphicalViewer" by rewrite its
"appendSelection" method.

public void appendSelection(EditPart editpart) {
List parts = this.getSelectedEditParts();
if (parts != null && parts.size() > 0) {
EditPart part = (EditPart) parts.get(0);
if (part.getParent() != editpart.getParent()) {
return;
}
}
super.appendSelection(editpart);
}

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