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Re: Refresh GMF Editor [message #176631]

Tue, 11 March 2008 11:51

Eclipse User

Originally posted by: amsurana.in.ibm.com

This is a multipart message in MIME format.
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>It works if I open the generated EMF tree editor and add a new semantic
element, then save the resource. >However, if I programmatically add a new
semantic element
>
>Something s = MySemanticElementFactory.eINSTANCE.createSomething();
>someOtherElement.eContents().add(s);

>someOtherElement.eResource.save(EmptyMap);

>Then it doesn't work. If I close my editor and reopen it, then it
appears.

>cheers,
>ian
>
>
>Alex Shatalin wrote:
>Hello Ian,

>It sounds like:
> http://wiki.eclipse.org/index.php/GMF_New_and_Noteworthy#Aut omatic_dia
>gram_editor_refresh
>
>Yes, it is. Diagra, should be automatically updated if it is not in
"modified" state and you've saved >your changes onto file system
(Resource.save() was called for all the resources in your ResourceSet).
>
>-----------------
>Alex Shatalin

Hi,
I was going thru the above discussed problem.
I had similar problem but couldnt find any exact solution to this. So here
I am posting a solution that will help the other developers.

To refresh the editor when u create any model Element using dyanmic EMF,
all u need to do is
refresh the ???CanonicalEditPolicy of the Diagram/Container Element.

for Example in UML, I have PACKAGE as my Diagram/model Element. So I do
have a PackageCanonicalEditPolicy generated in diagram code.
I just call the refresh method of this EditPolicy. :)
One might have more than one canonical EditPolicy for a modelElement.

You can access this CanonicalEditPolicy using the following code snippet.

List editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies
(rootPkg);
for (Iterator it = editPolicies.iterator();
it.hasNext();) {
CanonicalEditPolicy nextEditPolicy =
(CanonicalEditPolicy) it.next();
nextEditPolicy.refresh();

}

This code snippet is pasted here for clarity. You can refer to generated
???UpdateCommand for getting exact idea. ???UpdateCommand is called when
the GMF Editor is needed to be updated.

I Hope this helps. Please dont mind if there exist an already discussed
solution in the group

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 <tt>>It works if I open the generated EMF tree editor
and add a new semantic element, then save the resource. >However, if
I programmatically add a new semantic element</tt> 
>
 <tt>>Something s = MySemanticElementFactory.eINSTANCE.createSomething(); 
>someOtherElement.eContents().add(s);</tt>
 
 <tt>>someOtherElement.eResource.save(EmptyMap);</tt>
 
 <tt>>Then it doesn't work.  If I close my editor
and reopen it, then it appears.</tt>
 
 <tt>>cheers, 
>ian</tt>
 <tt>> 
> 
>Alex Shatalin wrote: </tt>
 <tt>>Hello Ian,</tt>
 
 <tt>>It sounds like: 
</tt><a href= http://wiki.eclipse.org/index.php/GMF_New_and_Noteworthy#Aut omatic_dia><tt>> http://wiki.eclipse.org/index.php/GMF_New_and_Noteworthy#Aut omatic_dia</tt></a><tt> 
>gram_editor_refresh 
></tt>
 <tt>>Yes, it is. Diagra, should be automatically updated
if it is not in "modified" state and you've saved >your changes
onto file system (Resource.save() was called for all the resources in your
ResourceSet).</tt> 
>
 <tt>>----------------- 
>Alex Shatalin</tt>
 
 
 
 
 <tt>Hi, </tt>
 <tt>I was going thru the above discussed problem. </tt>
 <tt>I had similar problem but couldnt find any exact solution
to this. So here I am posting a solution that will help the other developers.
</tt>
 
 <tt>To refresh the editor when u create any model Element
using dyanmic EMF, all u need to do is </tt>
 <tt>refresh the ???CanonicalEditPolicy of the Diagram/Container
Element.</tt>
 
 <tt>for Example in UML, I have PACKAGE as my Diagram/model
Element. So I do have a PackageCanonicalEditPolicy generated in diagram
code. </tt>
 <tt>I just call the refresh method of this EditPolicy.
:) </tt>
 <tt>One might have more than one canonical EditPolicy
for a modelElement.</tt>
 
 
 <tt>You can access this CanonicalEditPolicy using the
following code snippet.</tt>
 
    
 List editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(rootPkg); 
          
              for
(Iterator it = editPolicies.iterator(); it.hasNext();) {
          
               
      CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy)
it.next();
          
               
              nextEditPolicy.refresh();
          
               
              
          
              }
 
 <tt>This code snippet is pasted here for clarity. You
can refer to generated ???UpdateCommand for getting exact idea. ???UpdateCommand
is called when the GMF Editor is needed to be updated.</tt>
 
 <tt>I Hope this helps. Please dont mind if there exist
an already discussed solution in the group</tt>
 
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