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connection color depending on exisiting of its children [message #88663]

Mon, 01 January 2007 20:53

Eclipse User

In my model an connection can have many filters.
I need to mark somehow on diagram my link iff exists any filter.

I tried changing of link color using idea presented in thread "changing
connection color programtically". I put this command to
handleNotification for my ArrowEditPart and it was working (link color
changed when I created/removed its children). But than I do not know
where to run this command when my figures are created (i rebuild my
diagram very often - it depends which layer is selected by user).

I do not like idea with running color command, because it is complex and
I suppose it can work a little bit too long for many connections
switching very often.

I do not need do save in notation (semantic is persistent/sych!) model
my elements graphical parameters , so maybe I can switch this somehow off?

Or maybe I can add some middle decorator for my arrow listening to the
counter for my arrow filters (maybe some bulb).
I tried also with link feature label, but it needs connectin to real
attribute, my counter is 'virtual'

Thanx for any ideas
Wiktor

Re: connection color depending on exisiting of its children [message #88863 is a reply to message #88663]

Tue, 02 January 2007 13:49

Eclipse User

Hello Wiktor,

Concerning creation of the connection I think you can initialize line colour
in corresponding EditPart constructor.

To not store colour in notation model (+ diagram file) you should not set
"LineStyle" for the corresponding notation model (View) instance. Te easiest
way AFAIK is to set any forground colour for link figure in .gmfgraph model,
re-create .gmfgen model and re-generate the code. As a result you should
be able to control line colour by just setting corresponding colour to the
corresponding figure from the code.

-----------------
Alex Shatalin

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