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[news.eclipse.platform] Re: Synchronizing open editors on the same file
On 2/16/2009 1:10 PM, Marc E wrote: 
All,
I'm interested in contributing this feature to an open source project
based on Eclipse. I have done a fair amount of plugin programming but
never any Editor programming.
Basically, the editor in this project doesn't currently support
synchronization between two open editors on the same file. For example,
if I have any text file, and I open it in the Default Text Editor, then
choose "New Editor" and modify that file in one editor, the other editor
automatically reflects those changes. I'd like to add that behavior into
the editor in this project.
Can someone point me down the right path?

I think this is more of a fundamental design problem than a particular code problem. The editor in question must be using some kind of backing model that can be shared between editor instances. If it does not have some kind og in-memory model that is sharable, I'm not sure if you can do what you want.
If EMF is involved, this is quite doable. But if not I would first look at the code of the basic text editor to see how they are doing it. Try org.eclipse.ui.editors.text.TextEditor

Hope this helps,
Eric