[news.eclipse.modeling.gmf] Re: docking feature? (may be with bordered I

[Tobias <tobk42@xxxxxx>]

Hi Michael,

this is very simple (but not very well documented): In the GMF-Map, 
define these ports as child elements to the Widget, but do not assign a 
compartment.  As a result, the ports will be positioned like external 
labels, i.e. movable around the parent figure.  I do not know how to 
assign them a fixed positon and how to make them not moveable, but I'm 
sure you'll figure this out.  Some settings can be done in the parent 
edit part's addFixedChild method, e.g. [1] for setting the prefferred 
positon and for moving the ports a bit inwards of the figure, 
overlapping its border.  Further, these is (or was?) a bug when deleting 
one of the ports, resulting in multiple visual elements being removed. 
to fix this, add this [2] to the parent edit part.

Hope this helps,
Tobias

[1]
BorderItemLocator locator = new 
BorderItemLocator(getMainFigure(),PositionConstants.SOUTH);
locator.setBorderItemOffset(new Dimension(20, 20));
getBorderedFigure().getBorderItemContainer().add(childEditPart.getFigure(),locator);

[2]
protected void handleNotificationEvent(Notification notification) {
  super.handleNotificationEvent(notification);
  if (notification.getEventType() == Notification.REMOVE) {
    handleMajorSemanticChange();
  }
}



Michael Buske schrieb:
> Hallo everyone,
>
> I am a german student developing a gmf-prototyp for an mashup-concept.
>
> What I want to realize:
>   ______[Action1]__
>  |                 |
>  |   Widget_A      |
>  |_________________|
>    [Action2]
>           ^
>           |
>           |
>   ______[Event1]__
>  |                 |
>  |   Widget_B      |
>  |_________________|
>    [Action3]
>
> I habe several widgets(normal boxes may be with a picture)
> These widgets "own" actions and events. When I choose one of them over 
> the context-menu (allready established :-) ) a docked, labeled box 
> should appear. This docked box has to be hanging on the widget (moving 
> with it).
>
> How can I achieve these "docking boxes" ???
>
> I habe heard a lot about "bordered Items" and "ports". I have tryed to 
> realize them with the border-layout, but I even could not get an simple 
> border-layout working. Are they made by "gmf-modeling" or only by coding ?
>
> May be there are some more detailed diskriptions with model-examples in 
> the web? or some tutorials?
> Any help greatly appreciated!!!
> Thanks!