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Re: [tracecompass-dev] Extending filtering for CallStackView

Hi Dave,

I'm not sure I understand correctly, is your problem that entries that the user has filtered out with the dialog come back visible when you switch analyses?

I think the problem is that when you switch analyses and call rebuild(), your are creating a whole set of brand new CallStackEntry instances. They do not overload Object's equals(), so they are considered different. Consequently, after calling rebuild() the RawViewerFilter contains obsolete entries that do not match against anything anymore.

Can you avoid calling rebuild() when switching analyses? If you just make sure the content provider hides some entries it should work by just calling refresh()?


On Tue, Aug 2, 2016 at 2:10 PM, David Wootton <dwootton@xxxxxxxxxx> wrote:

I have figured out how to run multiple analyses extended from AbstractCallStackAnalysis for the same trace. I've also figured out how to set a content provider extending TimeGraphContentProvider to my class extending CallStackView so I can make timelines for individual threads visible or not visible like the existing ability to make an entire process visible or not visible using the TimeGraphFilterDialog. I potentially have a lot of threads per process, so this helps the user reduce clutter.

The problem is that the filtering to hide or show threads does not persist when I switch between analyses for the same thread. If I invoke the TimeGraphFilterDialog to pick a set of threads to hide, the view is updated when I close that dialog.

I invoke CallStackView.rebuild() when I switch between analyses.

It seems that this method and CallStackView.refresh() use a private (AbstractTimeGraphView.fFiltersMap) map to track the specified filter active for each trace when multiple traces are open.

Since I don't seem to have access to this map, I can't update it, so whatever I set using the TimeGraphFilterDialog gets overwritten when I switch analyses.

If I had a way to update this map via getter and setter methods then I think what I am trying will work. Alternatively, if I had access to the actual RawViewerFilter object then I could update the set of objects filtered in or out. However, that is a private class defined in ShowFiulterDialogAction so I don't see any way to get access to it.

Is there any way to get access to these objects? Is there another way I could make this work?



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