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org.eclipse.gef.ui.parts.TreeViewer in ViewPart [message #538805]

Tue, 08 June 2010 16:53

No real name

Messages: 2
Registered: June 2010

Junior Member

Hi,

first I must say, that I am new to GEF.

I would like to show a TreeViewer in a ViewPart, similar to the ContentOutlinePage but as view.

I set up the treeViewer, but nothing is painted in the view. What am i doing wrong?

For the moment i'm doing a quickhack to get the model from the GraphicalEditor.

public class ComponentTypeExplorer extends ViewPart implements ISelectionListener {

      [...]	

	public void selectionChanged(IWorkbenchPart part, ISelection selection) {

		
		if (part instanceof MyEditor) {
			this.editor = (MyEditor) part;
			this.setEditDomain(((MyEditor) part).getDomain());
			this.setModel(((MyEditor) part).getModel());
			this.createPartControl(this.parent);
		}
		
	} 
  
      public void createPartControl(Composite parent) {

		this.parent = parent;
		getViewSite().getPage().addSelectionListener(this);
		if (this.getModel() != null) {
			this.treeViewer = new TreeViewer();
			this.treeViewer.setRootEditPart(new RootTreeEditPart());
			this.treeViewer.setEditDomain(this.domain);
			this.treeViewer.setEditPartFactory(new MyEditPartsFactory());
			this.treeViewer.setContents(this.getModel());	
		}
	}
}

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Re: org.eclipse.gef.ui.parts.TreeViewer in ViewPart [message #538913 is a reply to message #538805]

Wed, 09 June 2010 05:30

Vijay Raj

Messages: 608
Registered: July 2009

Senior Member

treeviwer.createControl call is missing.....

---------------------
why, mr. Anderson, why, why do you persist?
Because I Choose To.
Regards,
Vijay

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Re: org.eclipse.gef.ui.parts.TreeViewer in ViewPart [message #539086 is a reply to message #538913]

Wed, 09 June 2010 15:25

No real name

Messages: 2
Registered: June 2010

Junior Member

thank you very much for your reply.

i add the call to the code, but it still doesn't work.

      public void createPartControl(Composite parent) {

		this.parent = parent;
		getViewSite().getPage().addSelectionListener(this);
		if (this.getModel() != null) {
			this.treeViewer = new TreeViewer();
			this.treeViewer.setRootEditPart(new RootTreeEditPart());
			this.treeViewer.setEditDomain(this.domain);
			this.treeViewer.setEditPartFactory(new MyEditPartsFactory());
			this.treeViewer.setContents(this.getModel());
			this.treeViewer.createControl(parent);
		}
	}

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Re: org.eclipse.gef.ui.parts.TreeViewer in ViewPart [message #539128 is a reply to message #539086]

Wed, 09 June 2010 17:39

Vijay Raj

Messages: 608
Registered: July 2009

Senior Member

try adding it after constructing treeviewer....

---------------------
why, mr. Anderson, why, why do you persist?
Because I Choose To.
Regards,
Vijay

Report message to a moderator

Re: org.eclipse.gef.ui.parts.TreeViewer in ViewPart [message #539903 is a reply to message #538805]

Mon, 14 June 2010 09:02

Madhu Samuel

Messages: 199
Registered: July 2009

Senior Member

Hello Simon,

You have not set the parent control for the treeViewer. You do not need
to explicitly set the rootTreeEditPart either.

Refer the below code. The below method is from the ViewPart subclass,

public void createPartControl(Composite parent) {
TreeViewer treeViewer = new TreeViewer();
//Set the parent control for the treeViewer
treeViewer.createControl(parent);

//Get the editor instance
MyGraphicalEditor editor =
(MyGraphicalEditor)PlatformUI.getWorkbench()
..getActiveWorkbenchWindow().getActivePage() .getActiveEditor();

treeViewer.setEditDomain(editor.getEditDomain());
treeViewer.setEditPartFactory(new AppTreeEditPartFactory());
treeViewer.setContents(editor.getModel());

//Synchronze the selection between editor and view
editor.getSelectionSynchronizer().addViewer(treeViewer);

}

Regards,
Madhu Samuel
EclipseBible.com

On 08-06-2010 22:23, simon@gooodguy.de wrote:
> Hi,
>
> first I must say, that I am new to GEF.
>
> I would like to show a TreeViewer in a ViewPart, similar to the
> ContentOutlinePage but as view.
>
> I set up the treeViewer, but nothing is painted in the view. What am i
> doing wrong?
>
> For the moment i'm doing a quickhack to get the model from the
> GraphicalEditor.
>
>
> public class ComponentTypeExplorer extends ViewPart implements
> ISelectionListener {
>
> [...]
>
> public void selectionChanged(IWorkbenchPart part, ISelection selection) {
>
>
> if (part instanceof MyEditor) {
> this.editor = (MyEditor) part;
> this.setEditDomain(((MyEditor) part).getDomain());
> this.setModel(((MyEditor) part).getModel());
> this.createPartControl(this.parent);
> }
>
> }
> public void createPartControl(Composite parent) {
>
> this.parent = parent;
> getViewSite().getPage().addSelectionListener(this);
> if (this.getModel() != null) {
> this.treeViewer = new TreeViewer();
> this.treeViewer.setRootEditPart(new RootTreeEditPart());
> this.treeViewer.setEditDomain(this.domain);
> this.treeViewer.setEditPartFactory(new MyEditPartsFactory());
> this.treeViewer.setContents(this.getModel());
> }
> }
> }
>

Regards,
Madhu
http://eclipsebible.com

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