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path: root/desktop-widgets/command_divelist.h
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2019-06-23Cleanup: remove selectionChanged logic from dive-list commandsGravatar Berthold Stoeger
Since all commands now fully reset the selection, there is no point in keeping track of whether the selection changed on addition or removal of dives. This can be done in the function that sets the selection. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-05-20Undo: be smarter about dive computer shown after deletionGravatar Berthold Stoeger
When deleting a dive computer, don't just show the first dive computer, but the next one in the list (if it exists). Moreover, on undo jump to the previously shown dive computer. Do this by keeping track of the before and after dive computer number in the undo command. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-05-20Undo: make "delete dive computer" undoableGravatar Berthold Stoeger
Simply reuse the code for "move dive computer" by creating a DiveComputerBase base class. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-05-20Undo: make "move dive computer to front" undoableGravatar Berthold Stoeger
Instead of the elegant solution that just modifies the dive, keep two copies and add either the old or the new copy. This is primitive, but it trivially keeps the dives in the right order. The order might change on renumbering the dive computers. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-15Undo: don't store insertion index in undo commandGravatar Berthold Stoeger
When adding dives in an undo command, the index is saved in the command. This seemed logical at first, because why calculate the index more than once? But actually it made the code rather subtle and brittle when multiple dives were added. Moreover, this is a pointless optimization, as it doesn't optimize the common case (only one execution). Remove this for now and calculate the index on every execution. If it ever turns out to be a bottle neck, it will be much more effective to turn the linear search of the index into a binary search. A further sensible optimization would be inserting in batches. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: remove ADD mode from main tabGravatar Berthold Stoeger
Instead of letting the user edit the fields before adding a dive, simply add an empty dive. Thus, the ADD mode of the main tab can be removed. Constructing a new dive with default-depth and making sure that the dive is displayed correctly is very subtle. This all needs to be detangled in due course. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: keep frontend informed of changes to dive site countGravatar Berthold Stoeger
Add a new signal to DiveListNotifier. Send signal if dives are added or removed and therefore the dive count of a dive site changes. The dive sites are collected and the signal is sent at the end of the command. Add code to update the table view. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Dive site: add dive site ref-countingGravatar Berthold Stoeger
Instead of setting dive->dive_site directly, call the add_dive_to_dive_site() and unregister_dive_from_dive_site() functions. In the parser this turned out to be a bit tricky. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: consider dive site in AddDive()Gravatar Berthold Stoeger
If a dive site was added for a new dive, remove it on undo. 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>
2019-04-04Undo: implement split-out of dive computerGravatar Berthold Stoeger
Allow splitting out a dive computer into a distinct dive. This is realized by generating a base class from SplitDive. This turned out to be more cumbersome than expected: we don't know a-priori which of the split dives will come first. Since the undo-command saves the indices where the dives will be insert, these have to be calculated. This is an premature optimization, which makes more pain than necessary. Let's remove it and simply determine the insertion index when executing the command. Original code by Linus Torvalds <torvalds@linux-foundation.org>. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2019-01-19Import: control process_imported_dives() by flagsGravatar Berthold Stoeger
process_imported_dives() takes four boolean parameters. Replace these by flags. This makes the function calls much more descriptive. Morover, it becomes easier to add or remove flags. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-01-19Import: add add_to_new_trip flag to process_imported_dives()Gravatar Berthold Stoeger
If this flag is set, dives that are not assigned to a trip will be assigned to a new trip. This flag is set if the user checked "add to new trip" in the download dialog of the desktop version. Currently this is a no-op as the dives will already have been added to a new trip by the downloading code. This will be removed in a subsequent commit. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-01-09Cleanup: remove explicit constructor of DiveListBaseGravatar Berthold Stoeger
DiveListBase had an explicit constructor that initialized the "firstExecution" member variable. The latter was a development- artifact that was never used. Remove the member and the constructor. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-01-09Undo: make dive-import undoableGravatar Berthold Stoeger
On desktop, replace all add_imported_dives() calls by a new undo-command. This was rather straight forward, as all the preparation work was done in previous commits. By using an undo-command, a full UI-reset can be avoided, making the UI react smoother. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-01-09Undo commands: refactor dive-trip handlingGravatar Berthold Stoeger
Trips were added to the core with the first dive of that trip. With the recent changes that keep trips ordered by first dive, this became counter-productive. Keeping a consistent state at all times would mean resorting the trip table for every dive that is added. Instead, add all dives to a trip and *then* add the trip to the core. Change the data-structures to not register trips-to-be-added with individual dives, but keep them in a separate vector for each undo command. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: make adding of planned dive undo-ableGravatar Berthold Stoeger
Planned dives were still added by directly calling core code. This could confuse the undo-machinery, leading to crashes. Instead, use the proper undo-command. The problem is that as opposed to the other AddDive-commands, planned dives may belong to a trip. Thus, the interface to the AddDive command was changed to respect the divetrip field. Make sure that the other callers reset that field (actually, it should never be set). Add a comment describing the perhaps surprising interface (the passed-in dive, usually displayed dive, is reset). Moreover, a dive cloned in the planner is not assigned a new number. Thus, add an argument to the AddDive-command, which expresses whether a new number should be generated for the to-be-added dive. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: use vectors for MergeDives and SplitDiveGravatar Berthold Stoeger
The MergeDives and SplitDive commands used addDive() and removeDive() calls to manage their dives. Unfortunately, these calls don't send the proper signals and thus the dive-list was not updated. Instead, use one- and two-element vectors, which are passed to addDives() and removeDives() [note the plural]. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: select dives after add, remove, merge, split dive commandsGravatar Berthold Stoeger
Select the proper dives after the add, remove, split and merge dives commands on undo *and* redo. Generally, select the added dives. For undo of add, remember the pre-addition selection. For redo of remove, select the closest dive to the first removed dive. The biggest part of the commit is the signal-interface between the dive commands and the dive-list model and dive-list view. This is done in two steps: 1) To the DiveTripModel in batches of trips. The dive trip model transforms the dives into indices. 2) To the DiveListView. The DiveListView has to translate the DiveTripModel indexes to actual indexes via its QSortFilterProxy- model. For code-reuse, derive all divelist-changing commands from a new base-class, which has a flag that describes whether the divelist changed. The helper functions which add and remove dives are made members of the base class and set the flag is a selected dive is added or removed. To properly detect when the current dive was deleted it became necessary to turn the current dive from an index to a pointer, because indices are not stable. Unfortunately, in some cases an index was expected and these places now have to transform the dive into an index. These should be converted in due course. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: use dive * instead of unique index in renumber-divesGravatar Berthold Stoeger
Now, that pointers to dives are stable, we might just as well use dive * instead of the unique-id. This also affects the merge-dive command, as this uses the same renumbering machinery. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: implement autogrouping of trips in DiveAddGravatar Berthold Stoeger
If the autogroup flag is set, search for appropriate trips in DiveAdd() and add the dive to this trip. If no trip exists, add a new trip. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Dive list: implement proper Qt-model semantics for DiveTripModelGravatar Berthold Stoeger
Previously, each dive-list modifying function would lead to a full model reset. Instead, implement proper Qt-model semantics using beginInsertRows()/endInsertRows(), beginRemoveRows()/ endRemoveRows(), dataChange(). To do so, a DiveListNotifer singleton is generatated, which broadcasts all changes to the dive-list. Signals are sent by the commands and received by the DiveTripModel. Signals are batched by dive-trip. This seems to be an adequate compromise for the two kinds of list-views (tree and list). In the common usecase mostly dives of a single trip are affected. Thus, batching of dives is performed in two positions: - At command-level to batch by trip - In DiveTripModel to feed batches of contiguous elements to Qt's begin*/end*-functions. This is conceptually simple, but rather complex code. To avoid repetition of complex loops, the batching is implemented in templated-functions, which are passed lambda-functions, which are called for each batch. 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>