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TreeViewer with properties view support [message #695238]

Mon, 11 July 2011 11:11

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

I have defined a treeviewer by using the follwing lines of code

viewer.setContentProvider(new AdapterFactoryContentProvider(factory));
viewer.setLabelProvider(new AdapterFactoryLabelProvider(factory));

In order to support the properties view I implemented the ISelectionProvider interface specifying this method:

@Override
public ISelection getSelection() {
		
 IStructuredSelection selection = (IStructuredSelection)viewer.getSelection();
		
 if (selection.getFirstElement() == null)
   return StructuredSelection.EMPTY; 
		
 IItemPropertySource source = (IItemPropertySource)factory.adapt(selection.getFirstElement(), IItemPropertySource.class);
		
 return new StructuredSelection(new PropertySource(selection.getFirstElement(), source));
}

The problem is that the Properties View is displaying nothing even though the code gets executed. What is missing?

Ralph

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Re: TreeViewer with properties view support [message #695381 is a reply to message #695238]

Mon, 11 July 2011 15:59

Ed Merks

Messages: 33137
Registered: July 2009

Senior Member

Support for the properties viewer works in the generated editor. Have
you done all the things you see there?

On 11/07/2011 4:11 AM, ralph. wrote:
> Hi,
>
> I have defined a treeviewer by using the follwing lines of code
>
>
> viewer.setContentProvider(new AdapterFactoryContentProvider(factory));
> viewer.setLabelProvider(new AdapterFactoryLabelProvider(factory));
>
>
> In order to support the properties view I implemented the
> ISelectionProvider interface specifying this method:
>
>
> @Override
> public ISelection getSelection() {
>
> IStructuredSelection selection =
> (IStructuredSelection)viewer.getSelection();
>
> if (selection.getFirstElement() == null)
> return StructuredSelection.EMPTY;
> IItemPropertySource source =
> (IItemPropertySource)factory.adapt(selection.getFirstElement(),
> IItemPropertySource.class);
>
> return new StructuredSelection(new
> PropertySource(selection.getFirstElement(), source));
> }
>
>
> The problem is that the Properties View is displaying nothing even
> though the code gets executed. What is missing?
>
> Ralph

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: TreeViewer with properties view support [message #695413 is a reply to message #695381]

Mon, 11 July 2011 17:12

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

I copied a lot of code from there. Somehow I cannot figure out how the properties view is connected there.

Ralph

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Re: TreeViewer with properties view support [message #695542 is a reply to message #695413]

Tue, 12 July 2011 00:20

Ed Merks

Messages: 33137
Registered: July 2009

Senior Member

Did you implement the adapter support to create a properties view like
what you see in the generated editor?

On 11/07/2011 10:12 AM, ralph. wrote:
> Hi,
>
> I copied a lot of code from there. Somehow I cannot figure out how the
> properties view is connected there.
>
> Ralph

Ed Merks
Professional Support: https://www.macromodeling.com/

Report message to a moderator

Re: TreeViewer with properties view support [message #695610 is a reply to message #695542]

Tue, 12 July 2011 06:43

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

do you mean this part?

/**
* This is how the framework determines which interfaces we implement.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@SuppressWarnings("rawtypes")
@Override
public Object getAdapter(Class key) {
  if (key.equals(IContentOutlinePage.class)) {
    return showOutlineView() ? getContentOutlinePage() : null;
  }
  else if (key.equals(IPropertySheetPage.class)) {
   return getPropertySheetPage();
  }
  else if (key.equals(IGotoMarker.class)) {
   return this;
  }
  else {
   return super.getAdapter(key);
  }
}

But how can I tell the properties view to call this method?

Ralph

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