Show Diff of two trees in Eclipse

In Eclipse, I am using a TreeViewer to show a cu开发者_JAVA百科stom tree, whose contents are drawn from an ITreeContentProvider. Now I am trying to create a second view that allows me to automatically show a two-way comparisons of two such trees. I found various views for textual comparison within Eclipse, but I could not find an easy way to show the structural differences between two arbitrary trees. Any thoughts?

When the Data Model the ContentProvider is creating and the labelProvider is diplaying is the Same, you could use the same viewer in the right and the left of a view.

You could than compare the TreeItem Elements of both TreeViewer and mark the ones, which has changed.

The other solution is to compare the DataModels and add a special flag to the changed elements. The LabelProvider can check this flag and draw a special color to indicate, that this element is different.

I do not know an Editor inside Eclipse, providing this functionality.