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gmf editor selection change events [message #658719]

Wed, 09 March 2011 15:37

m kranz

Messages: 69
Registered: January 2010

Member

hello

i am looking for a way to get selection changed events from a gmf editor. is there a way to add a SelectionChangedListener to a gmf editor?
or is there another way to get selection events from a gmf editor?

thanks in advance

mkranz

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Re: gmf editor selection change events [message #658752 is a reply to message #658719]

Wed, 09 March 2011 16:00

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

On 09-03-11 16:37, mkranz wrote:
> hello
>
> i am looking for a way to get selection changed events from a gmf
> editor. is there a way to add a SelectionChangedListener to a gmf editor?
> or is there another way to get selection events from a gmf editor?
>
> thanks in advance
>
> mkranz

in your xxxDiagramEditor do the following:

/**
* Hook into the synchronizer, we want to know what is going on with
* selections, so we can modify the diagram model.
*
*/
private SelectionSynchronizer synchronizer;

@Override
protected SelectionSynchronizer getSelectionSynchronizer() {
if (synchronizer == null)
synchronizer = new CustomSelectionSynchronizer();
return synchronizer;
}

/**
* A custom synchronizer, which by parameter can either sync. viewers, or
* replace the Graphical viewer input.
*
* @author dzonekl
*
*/
class CustomSelectionSynchronizer extends SelectionSynchronizer {

@Override
public void addViewer(EditPartViewer viewer) {
super.addViewer(viewer);
}

@Override
public void selectionChanged(SelectionChangedEvent event) {
// We turn off the default synchronization.
// super.selectionChanged(event);

### PRrocess the selection here.

}
}

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