subsurface/desktop-widgets
Berthold Stoeger 58f2e5f77c Undo: use QUndoStack::isClean() to determine unsaved changes
Properly implement the unsaved-changes flag(s). Since we currently have
two kinds of changes, there are two flags:
1) dive_list_changed in divelist.c marks non-undoable changes. This flag
   is only cleared on save or load.
2) QUndoStack::isClean() is used to determine the state of undoable
   changes. Every time the user returns to the state where they saved,
   this flag is cleared.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12 18:19:07 +03:00
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