Re: [gef-dev] Non-graphical edit parts.

["Eugene Ostroukhov" <eostroukhov@xxxxxxxxxxx>]

I use non-graphical edit parts to process some events. I.e. I draw a table, so I have following tree:

RootEditPart

    SomeEditPart

        TableFragmentEditPart

            TableRowEditPart

                TableCellEditPart

                TableCellEditPart

                TableCellEditPart

            TableRowEditPart

                TableCellEditPart

                TableCellEditPart

                TableCellEditPart

    SomeEditPart

        TableFragmentEditPart

            TableRowEditPart

                TableCellEditPart

                TableCellEditPart

                TableCellEditPart

            TableRowEditPart

                TableCellEditPart

                TableCellEditPart

                TableCellEditPart

 

It's done so as there are some specifics in the application requirements.

Now I had to make all these table fragments behave as one table (column add/remove, resize column, select column) and I've added non-graphical edit parts to process the events - the parts for table itself and columns. They correctly process selection requests, resize requests, so on - I'm pretty happy with it's working :)

 

But there were several places where I received ClassCastException - just a couple of hours earlier I've fixed marquee tool. And there were issues in some other classes - I just don't remember where.

 

Best regards,

Eugene

 

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

From: Randy Hudson

To: gef-dev@xxxxxxxxxxx

Sent: Friday, January 16, 2004 6:59 PM

Subject: Re: [gef-dev] Non-graphical edit parts.

There is support for non-graphical editparts in an SWT Tree.  But, you cannot mix editpart types.  Why do you bother having an editpart if it isn't visible in the diagram?  The whole point of an editpart is to link the model, view, and interactions with the view.

The answer is most likely 3., but I'd like to know how this was useful.

-randy

"Eugene Ostroukhov" <eostroukhov@xxxxxxxxxxx> Sent by: gef-dev-admin@xxxxxxxxxxx 01/16/2004 08:56 AM Please respond to gef-dev

To:        <gef-dev@xxxxxxxxxxx>         cc:                 Subject:        [gef-dev] Non-graphical edit parts.

Hi all.
In my application not all the children of the graphical edit parts are
instances of the GraphicalEditPart (as they are not shown on the screen).
But I often receive ClassCastException. While I am developing the
application I am patching GEF code (in renamed classes).

I've got following questions:
1. I am developing on a GEF 2.1.2. Will the support for non-graphical edit
parts be improved in the next release?
2. May be it would make sence to submit updated code?
3. Or it is strictly prohibited to use them (though they proved really
useful for me)

Best regards,
Eugene
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