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2019-04-12Dive sites: prepare for dive site ref-countingGravatar Berthold Stoeger
Add a dive site table to each dive site to keep track of dives that have been added to a dive site. Add two functions to add dives to / remove dives from dive sites. Since dive sites now contain a dive table, the order of includes had to be changed: "divesite.h" now includes "dive.h" and not vice-versa. This caused some include churn. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: make undo-system dive site-awareGravatar Berthold Stoeger
As opposed to dive trips, dive sites were always directly added to the global table, even on import. Instead, parse the divesites into a distinct table and merge them on import. Currently, this does not do any merging of dive sites, i.e. dive sites are considered as either equal or different. Nevertheless, merging of data should be rather easy to implement and simply follow the code of the dive merging. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: isolate undo-commandsGravatar Berthold Stoeger
This refactors the undo-commands (which are now only "commands"). - Move everything in namespace Command. This allows shortening of names without polluting the global namespace. Moreover, the prefix Command:: will immediately signal that the undo-machinery is invoked. This is more terse than UndoCommands::instance()->... - Remove the Undo in front of the class-names. Creating an "UndoX" object to do "X" is paradoxical. - Create a base class for all commands that defines the Qt-translation functions. Thus all translations end up in the "Command" context. - Add a workToBeDone() function, which signals whether this should be added to the UndoStack. Thus the caller doesn't have to check itself whether this any work will be done. Note: Qt5.9 introduces "setObsolete" which does the same. - Split into public and internal header files. In the public header file only export the function calls, thus hiding all implementation details from the caller. - Split in different translation units: One for the stubs, one for the base classes and one for groups of commands. Currently, there is only one class of commands: divelist-commands. - Move the undoStack from the MainWindow class into commands_base.cpp. If we want to implement MDI, this can easily be moved into an appropriate Document class. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>