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Add node in Tree View of StructureMergeViewer and CompareMergeViewer [message #1738330]

Tue, 19 July 2016 06:55

Gaurav Tripathi

Messages: 41
Registered: September 2015

Member

Hello Everyone,
We need to add a custom item in both StructureMergeViewer and CompareMergeViewer. How can we achieve it ?
Our model only contains value and no definition but while loading into EMF Compare Dialog tool we need to add definitions before values.

So where are this node getting added to tree view in CompareMergeViewer and StructureMergeViewer?

Check the attached image. index.php/fa/26492/0/

How to add that definition we know, but in which class and how is the question ?

Waiting for response asap.

Thanks in advance.

Attachment: 20May_2way.png
(Size: 69.47KB, Downloaded 325 times)

[Updated on: Tue, 19 July 2016 11:55]

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Re: Add node in Tree View of StructureMergeViewer and CompareMergeViewer [message #1738406 is a reply to message #1738330]

Tue, 19 July 2016 13:26

Mathieu Cartaud

Messages: 4
Registered: April 2016

Junior Member

Hello Gaurav,

You can customize the trees displayed in the StructureMergeViewer with the extension point "org.eclipse.emf.compare.rcp.ui.differenceGroupExtender" (see the related section in the developer guide).
We are currently working on a new implementation for the group providers in the StructureMergeViewer, which will allow user to customize every node in the tree through the group extender extension point.
In the meantime, if the group extender is not powerful enough for your needs, you can implement your own groupProvider

For the ContentMergeViewer, I don't think there is an easy way of doing this and we have no plans to work on such a feature for the moment, but feel free to open an enhancement request against EMF Compare as it could be an idea for the future. We're also open to contributions if you want to implement this.

Regards,

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Re: Add node in Tree View of StructureMergeViewer and CompareMergeViewer [message #1738481 is a reply to message #1738406]

Wed, 20 July 2016 09:29

Gaurav Tripathi

Messages: 41
Registered: September 2015

Member

Thanks, Mathieu Cartaud for your valuable response.

Actually, we need to implement this functionality for our use case.
Isn't there any way to add this node in ContentMergeViewer as right now it's of very much in need.
We also tried to add that with extending TreeContentMergeViewer but then every time we were expanding or collapsing new tree was generating.

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Re: Add node in Tree View of StructureMergeViewer and CompareMergeViewer [message #1738490 is a reply to message #1738481]

Wed, 20 July 2016 10:08

Laurent Goubet

Messages: 1858
Registered: July 2009

Senior Member

No, our content merge viewer doesn't have extension capabilities that would allow that. You will have to implement your own content merge viewer and contribute it to eclipse compare through its extension points (org.eclipse.compare.contentMergeViewers). You will then be able to switch to it using the drop-down menu in-between the two comparison panes as show below. You might be able to reuse our implementation as base for that.

Laurent Goubet
Obeo

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