Remove temp fill, add new process on double click
Draft implementation of filter model. Does crashes with segfault on double click... Why?
Filter model does work, apparently you should not use internalPointer outside model.
Add FilterModel unittests
Add unittest for group filtering - bug found
Fix filter was filtering out all groups
Add min width for graphics view
Filte out empty groups. Works as intended, but terribly slow on first filtering since caching entire tree
Move empty group filtering in filter model