Re: [gef-dev] delete action

["Aditya Bhushan" <aditya@xxxxxxxxxxx>]

Hi

 

you will have to add an COMPONENT_ROLE edit policy to your editpart in createEditPolicies().

 

    "installEditPolicy(EditPolicy.COMPONENT_ROLE,new IndividualNodeEditPolicy());"

 

public class IndividualNodeEditPolicy extends ComponentEditPolicy {

 

    protected Command createDeleteCommand(GroupRequest deleteRequest) {
        Command deleteCommand = new DeleteElementCommand((BaseDataModel) (getHost().getParent().getModel()), (ElementModel) (getHost().getModel()));
        return deleteCommand;
    }

 

}

public class DeleteElementCommand extends Command {
  private BaseDataModel baseModel;
  private ElementModel nodeModel;
 
  public DeleteElementCommand(BaseDataModel baseModel, ElementModel model){
    super();
    this.nodeModel = model;
    this.baseModel = baseModel;
  }
 
  public void execute() {
    baseModel.deleteChild(nodeModel);
  }

 

  public boolean canUndo() {
    return false;
  }

 

}

The above example demonstrates that.

 

Aditya Bhushan

 

 

----- Original Message -----

From: "jerome lafon" <jerome.lafon@xxxxxxxx>

To: <gef-dev@xxxxxxxxxxx>

Sent: Wednesday, June 23, 2004 8:24 PM

Subject: [gef-dev] delete action

Hi,
is somebody knows how to delete an editpart in a graphicalViewer?
I have write:

viewer.setKeyHandler(new GraphicalViewerKeyHandler(viewer)
    .setParent(getCommonKeyHandler()));

protected KeyHandler getCommonKeyHandler() {
  if (sharedKeyHandler == null) {
   sharedKeyHandler = new KeyHandler();
   sharedKeyHandler.put(
    KeyStroke.getPressed(SWT.DEL, 127, 0),
    getActionRegistry().getAction(GEFActionConstants.DELETE));
  }
  return sharedKeyHandler;
 }

but it doesn't work!
thanks


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