[news.eclipse.tools.gef] Line drawing in Panel Figure

["slam" <jsk_lam@xxxxxxxxxxx>]

Hi

I use a Panel as a composite figure to host an Image and a Label.
Now, I need to draw a rectangle box inside the pandel with a '+' or '-'
to indicate the expand and collapse states:

----        ----
| + |        | - |
----        ----

The little rectangle box need to behave as a hot spot, so the user
can click on it and a notification message will be sent and received
by the program to take appropriate action.

Can someone please provide help on this?

Thanks,
slam