I wonder, if there is an Eclipse plugin for code birdview (preview, visualization, minimap, however it may be called)? I mean, when you see your code in a small preview window and may scroll using this window. Wait, I'll show you...
Like this. (See the column, where the white rectangle is).
I saw this question again today, and found someone working on such a plugin on github. I have no idea how far progressed this project is, but it may be worth checking out:
https://github.com/apauzies/eclipse-minimap-view
Hope this helps!
Here is "Overview" plugin from a deleted by a mod answer that provides a minimap view.
(I don't see a reason for deletion, it's exactly what OP asked for).
Minimap is now present in Eclipse starting version 4.9 Official link to the feature
来源：https://stackoverflow.com/questions/6717814/eclipse-code-birdview-plugin