Description Tod Creasey 2004-03-17 16:14:25 EST

From an email Nick sent...I have assigned to Stefan as he is currently working 
in this space - please let me know if you need anything from me.

PartTabFolderPresentation is only used for views.  Need to ensure that 
this works for editors too, in EditorPresentation too.
The font logic there now is different than for PartTabFolderPresentation.

We want to maintain the following invariants, for both views and editors:
- if any jobs running in the part, then font is italic
- else if any jobs were running, but have all completed, and part not yet 
activated, then font is bold
- else font is plain

I suggest having a common updateFont(IPresentablePart) method in 
PartTabFolderPresentation, calling this from the subclasses for the initial 
case and when the busy state changes.

This will require maintaining a separate latch for the "all jobs completed but 
part not yet activated" state, for each part.
Any logic that is independent of how the busy state is presented should be 
encapsulated in IPresentablePart.  That is, it should be easy to move to using 
colours rather than fonts to show the busy state without having to worry about 
the logic above.  I suggest changing IPresentablePart.isBusy() to be a 3-
valued int getBusyState() method (not busy, busy, and done), and maintaining 
the latch there.