| how to set the value of a new element referencing a dragged element [message #484410] |
Mon, 07 September 2009 12:26 |
Eclipse User |
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Originally posted by: xuesong.wen.gmail.com
Hello,
I implemented drag and drop from common navigator to a GMF diagram. Now
I can drag a element form common navigator to editor and create a new
empty element. But I want this new element have the same properties
referencing the dragged element.
I have tried to follow this tipps using "SetRequest". But it doesn't work.
Collection results = DiagramCommandStack.getReturnValues(cmd);
for (Object res: results) {
if (res instanceof IAdaptable) {
IAdaptable adapter = (IAdaptable) res;
View view = (View) adapter.getAdapter(View.class); //everytime
"view=null", I don't know why. :(
if (view != null) {
.....
}
}
}
I have also tried to do like this:
public Command getDropObjectsCommand(DropObjectsRequest dropRequest) {
List viewandelementDescriptors = new ArrayList();
for (Iterator it = dropRequest.getObjects().iterator();it.hasNext();) {
final Object nextObject = it.next();
if (false == nextObject instanceof EObject) {
continue;
}
IElementType type = RulesModelerElementTypes.getElementType(((EObject)
nextObject).eClass());
final CreateElementRequest req = new CreateElementRequest(type);
req.setNewElement(((EObject) nextObject));// set element to this request
ViewAndElementDescriptor viewDescriptor = new
ViewAndElementDescriptor(new CreateElementRequestAdapter(req),
Node.class,
((IHintedType)type).getSemanticHint(),
getDiagramPreferencesHint());
viewandelementDescriptors.add(viewDescriptor);
...
}
But it doesn't work either.I can just create new empty element and its
view. How to set the value of this new element?
Thanks
Xuesong
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