[news.eclipse.modeling.gmf] Re: Help - Multipage editor with different m

[Alex Shatalin <vano@xxxxxxxxxxx>]

Hello Tiago,

> Hello dear friends,
>
> My name is Tiago, a brasilian student, and I'm working in the
> development of an open source platform for describe graphically models
> of environmental systems, and started to use the Eclipse platform to
> do this job.
>
> I initiated the implementation using the EMF and generate the
> multi-page editor. And then i started to study the GMF to create the
> graphical editor. But i have great difficulties to do this job and i
> like some help.
>
> In simple words, the problem i found is: i have a model with the
> following simplified strutcture:
>
> UserModel
> |-> map1
> |-> map2
> (...)
> |-> automaton1
> |-> automaton2
> (...)
> |-> function1
> |-> function2
> (...)
> The user will create elements like maps, automatons, and functions. I
> build the .ecore and create the editor using the code generation of
> EMF.

> But I need to display a different view (editor) as different elements
> are created and selected. For example, for the map element is wanted
> to display an image, for the automaton element a graphical state
> machine editor with states and transition rules, for function element
> display a text editor.
You can open separate editor for each sub-element of your model (map/automation/function) 
another option will be (AFAIU this is a way you choose) to open another tab 
in the same editor representing/editing contents of the corresponding sub-element 
of your model. AFAIU, you need GMF-generated diagram editor only for editing 
âautomationsâ then below Iâll try to explain a way to integrate this editor 
with a mutli=page one generated by EMF.

> the EMF code generation. And I created in a separated project (to
> learn) a simplified state machine graphical editor using the GMF
This editor, I suppose, is able to edit âautomationâ element and will create 
this element (root automation) just in the root of EMF resource then you 
create new automation diagram using GMF-generated wizard. Now you can try 
using âInitialize ... diagram fileâ on an actual instance of your model (having 
UserModel root element instead of automation). With corresponding wizard 
you should be able to create diagram file pointing to the automation element 
located in arbitrary place of input model hierarchy tree. 
Then you have to handle selection in an EMF editor in a way: if automation 
element was selected then you are creating new diagram wile associated with 
this automation element (code can be copied from âInitialize ... diagram 
fileâ action) or just locating appropriate diagram file on a disk and then 
opening new editor tab (GMF-generated editor) using this diagram file as 
an input. At least this is a way to start with this task.

In addition in future if you want to store all the diagrams in the same (model) 
file then you can try using âURIEditorInputâ as an input for GMF-generated 
diagram editor.

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