| Filtering views [message #100401] |
Fri, 02 February 2007 08:35  |
Eclipse User |
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Originally posted by: seliva.gmail.com
Hi!
I am trying to add some kind of view filter to my gmf diagram. The purpose
is to be able to show/hide certain type of objects. For example,if I have
elements of the types A,B & C, I would like to be able to choose that only
the types A & B are displayed.
I have found some information:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=114225
where it says it should be possible by using EditPolicies, but I really
dont know which role should I use (I didnt find any examples)
I also found this other link:
http://wiki.eclipse.org/index.php/FAQ_How_do_I_filter_the_co ntents_of_a_viewer%3F
but I am afraid it may be only for views of the Eclipse editor, and not
only the gmf diagram. Could I use this for my purpose? I tried to add a
filter to MyDiagramEditPart.getViewer but it didnt work.
I would be glad if someone could give me a hint. Thanks!
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| Re: Filtering views [message #100689 is a reply to message #100401] |
Fri, 02 February 2007 15:56  |
 Cherie Revells
Messages: 299
Registered: July 2009 |
Senior Member |
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Noelia,
Sounds to me like you want a non-canonical diagram. The GMF generator
generates canonical diagrams by default, I'm not sure how it works for
non-canonical diagrams.
You could get started by reading this FAQ:
http://wiki.eclipse.org/index.php/Graphical_Modeling_Framewo rk_FAQ#What_does_.27canonical.27_mean_in_the_context_of_GMF. 3F
The logic example diagram is non-canonical, but it was also not created
with the generator.
Regards,
Cherie
Noelia Rodriguez wrote:
> Hi!
>
> I am trying to add some kind of view filter to my gmf diagram. The
> purpose is to be able to show/hide certain type of objects. For
> example,if I have elements of the types A,B & C, I would like to be able
> to choose that only the types A & B are displayed.
> I have found some information:
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=114225
> where it says it should be possible by using EditPolicies, but I really
> dont know which role should I use (I didnt find any examples)
>
> I also found this other link:
> http://wiki.eclipse.org/index.php/FAQ_How_do_I_filter_the_co ntents_of_a_viewer%3F
>
> but I am afraid it may be only for views of the Eclipse editor, and not
> only the gmf diagram. Could I use this for my purpose? I tried to add a
> filter to MyDiagramEditPart.getViewer but it didnt work.
> I would be glad if someone could give me a hint. Thanks!
>
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| Re: Filtering views [message #143335 is a reply to message #100722] |
Wed, 18 July 2007 18:26 |
| Eclipse User |
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Originally posted by: marcio.debarros.gmail.com
Hi Mohammed,
I am trying to do the same thing as Noelia was, however when I overrid the
getModelChildren() method, the I want to filter Node goes away from the
diagram, but its connection to a non-filtered/visible Node is still
displayed.
How can I get around that ?
Thanks,
--Marcio
"Mohammed Mostafa" <mmostafa@ca.ibm.com> wrote in message
news:epvoar$og2$1@utils.eclipse.org...
> Hi Noelia ;
>
> Figures displayed on the diagram surface depends on what the
> GraphicalEditPart#getModelChildren returns;
>
> For example, we hide all views that had FALSE visibility by default so,
> although the view is created the figure and the edit part will not be
> created
>
> to achieve this we override the getModelChildren in the GraphicalEditPart
> and implemented it like this
>
> protected List getModelChildren() {
> Object model = getModel();
> if(model!=null && model instanceof View){
> return new ArrayList(((View)model).getVisibleChildren());
> }
> return Collections.EMPTY_LIST;
> }
>
> you can override this method in the edit part where you had filtering and
> do more checks there for example you can remove any view that had semantic
> element of type X
>
>
> This is one way to implement filtering from the runtime point of view
>
>
> Noelia Rodriguez wrote:
>> Hi!
>>
>> I am trying to add some kind of view filter to my gmf diagram. The
>> purpose is to be able to show/hide certain type of objects. For
>> example,if I have elements of the types A,B & C, I would like to be able
>> to choose that only the types A & B are displayed.
>> I have found some information:
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=114225
>> where it says it should be possible by using EditPolicies, but I really
>> dont know which role should I use (I didnt find any examples)
>>
>> I also found this other link:
>> http://wiki.eclipse.org/index.php/FAQ_How_do_I_filter_the_co ntents_of_a_viewer%3F
>> but I am afraid it may be only for views of the Eclipse editor, and not
>> only the gmf diagram. Could I use this for my purpose? I tried to add a
>> filter to MyDiagramEditPart.getViewer but it didnt work.
>> I would be glad if someone could give me a hint. Thanks!
>>
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