Undo of editing should probably also restore the old selection and
current dive. Therefore, move the functions that set and restore the
selection and the current dive from the command_divelist.cpp into the
command_private.cpp translation unit.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The dive list was not updated automatically when an edit command was
executed. There was already a signal to do that, viz. divesChanged().
But that signal worked by-trip and didn't have a dive-field specifier.
The edit-commands used the divesEdited() signal that isn't by-trip
but has a dive-field specifier.
Unify these two signals to be by-trip and with dive-field specifier.
This needs common code to generate the by-trip list that is moved to
a command_private.h header.
Since there might now be multiple signals (one per trip) actually
check in the main-tab whether the current trip is affected to
avoid multiple update of fields. This has the positive(?) effect
of not doing any update if the current dive isn't changed.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
