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path: root/qt-models/divetripmodel.cpp
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2019-12-10Filter: correctly send changed signals in list modeGravatar Berthold Stoeger
The DiveTripModelList forgot to collect the changed dives when resetting the filter. Fix that. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-10Filter: instruct UI of changed current diveGravatar Berthold Stoeger
Updating the filter can lead to changes of the current dive. Keep the UI in the know by re-initializing the selection. This is not optimal, because the whole selection is reset, but the pragmatic thing to do for now. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-10Dive list: remove global pointer to DiveTrip modelGravatar Berthold Stoeger
This part of the code had that horrible pattern, where reseting the model would invalidate all pointers to the DiveTrip model. Internalize these complexities in the MultiFilterSortModel. All accesses are now performed via that proxy model. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-10Filter: send filterReset via signalGravatar Berthold Stoeger
The old code called directly into the DiveListModel. Instead, send a signal and hook into the signal from the model. This will allow us to remove the DiveListModel::instance() function. This, in turn, is a step towards supporting multiple models at the same time. However, currently the model manually sets the hidden_by_filter flag in the core and therefore only one active model is supported at a time. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-04Selection: move initialization of selection from view to modelGravatar Berthold Stoeger
The goal here is to unify desktop and mobile by moving selection code from the desktop-only view. Currently, initialization of the selection still has to be called from the view after connecting the appropriate signals. This is due to the weird way in which create completely new models when resetting them. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-04Cleanup: rename newCurrentDive signal to currentDiveChangedGravatar Berthold Stoeger
This is more consistent with the rest of the signals. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-04Dive list model: send changed signals for top-level itemsGravatar Berthold Stoeger
In analogy to the tree-model send signals when dives change their shown status in the list-view. Do this in two passes (collect changes; send changes) to be able to reuse the already existing functions. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-04Dive trip model: send changed signals for top-level itemsGravatar Berthold Stoeger
Send signals if the shown-status of top level items changed. Do this in two passes to be able to use the previously created function. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-04Dive trip model: send changed signals if visibility changed in tripsGravatar Berthold Stoeger
To avoid having to do full filter reloads, send dive-changed signals for dives in trips when the shown-status changed. But only for trips where not all dives are hidden. Because for those, the plan is to hide the trip as a whole. Implement the signal sending in its own function so that it can be reused for top-level items and the list-view. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-12-04Dive list model: move filtering of trip-items to own functionGravatar Berthold Stoeger
Implementing proper model semantics (only sending a changed signal for items that actually changed) will be somewhat complicated. Therefore, move the filtering of trip-items to its own function to make the nesting a little bit less deep. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-19Dive list: clear internal data when clearing modelGravatar Berthold Stoeger
The DiveListModelBase::clear() implementation was flawed: It cleared the data in the core, but left the data in the model untouched. The code was relying on the fact that the caller would reset the model manually. Not a good idea. Therefore, clear the internal data to keep the model consistent at all times. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-19Dive list: update selection after clearing modelGravatar Berthold Stoeger
When clearing the model the selection is cleared. Send the according signal. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-19Filter: move recalculation of filter from FilterModel to TripModelGravatar Berthold Stoeger
The way this was accessed via Qt's model semantics was horrible. This gives arguably more readable code, since we don't have to shoehorn things through QVariants. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-19Filter: move num_shown logic from model to coreGravatar Berthold Stoeger
Since the number of shown dives is stored in the core, let's also keep it updated there. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-19Filter: split out filter from modelGravatar Berthold Stoeger
Split out the actual filtering from the MultiFilterSortModel. Create a DiveFilter class that does the actual filtering. Currently, mobile and desktop have their own version of this class, though ultimately we may want to merge them. The idea here is that the trip-model and undo-commands have direct access to the filter-function and thus can take care of keeping track of the number of shown dives, etc. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-16Cleanup: use DiveTripModelBase::clear() to reset the logGravatar Berthold Stoeger
Introduce a DiveTripModelBase::clear() function that cleanly clears all dive data inside a beginResetModel()/endResetModel() pair. Thus, the UI will be cleanly reset and we can remove explicit calls to - graphics->setEmptyState() - mainTab->clearTabs() - mainTab->clearTabs() - diveList->reload() from MainWindow::closeCurrentFile(). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-15Dive list: signal correct trip in DiveTripModelTree::topLevelChangedGravatar Berthold Stoeger
DiveTripModelTree::topLevelChanged() has pretty complex code, as it has to handle the fact that when adding/removing a dive from a trip, the trip can change its position. The code did not account for the fact that when moving an object back in the top level list, one has to subtract one from the new index, because the object was removed somewhere in the front of the list. To make matters worse, when an entry stayed where it was, this was realized by moving the entry right behind itself, which of course means that it stays where it is. But this meant that in the by far most common case (no moving) the wrong entry was updated. Fix this by subtracting 1 from the new index when moving an entry to the back. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-14Refactoring: move undo commands to top levelGravatar Berthold Stoeger
In the future we might want to use undo-commands for mobile as well (even if not implementing undo). Therefore, move the undo-command source from desktop-widgets to their own commands top-level folder. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-11Cleanup: introduce DiveTripModelBase::IS_TRIP_ROLEGravatar Berthold Stoeger
To test whether an entry is a trip, we passed a pointer to the trip through a QVariant and tested that for null-ity. Passing pointers through QVariants has given us myriads of problems in QML, therefore introduce a bool IS_TRIP_ROLE Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-09Cylinders: access cylinders with get_cylinder()Gravatar Berthold Stoeger
Instead of accessing the cylinder table directly, use the get_cylinder() function. This gives less unwieldy expressions. But more importantly, the function does bound checking. This is crucial for now as the code hasn't be properly audited since the change to arbitrarily sized cylinder tables. Accesses of invalid cylinder indexes may lead to silent data-corruption that is sometimes not even noticed by valgrind. Returning NULL instead of an invalid pointer will make debugging much easier. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-11-09Core: remove MAX_CYLINDERS restrictionGravatar Berthold Stoeger
Instead of using fixed size arrays, use a new cylinder_table structure. The code copies the weightsystem code, but is significantly more complex because cylinders are such an integral part of the core. Two functions to access the cylinders were added: get_cylinder() and get_or_create_cylinder() The former does a simple array access and supposes that the cylinder exists. The latter is used by the parser(s) and if a cylinder with the given id does not exist, cylinders up to that id are generated. One point will make C programmers cringe: the cylinder structure is passed by value. This is due to the way the table-macros work. A refactoring of the table macros is planned. It has to be noted that the size of a cylinder_t is 64 bytes, i.e. 8 long words on a 64-bit architecture, so passing on the stack is probably not even significantly slower than passing as reference. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-09-06Dive site: don't emit divesChanged signals when editing dive siteGravatar Berthold Stoeger
When editing the dive site, for certain fields a divesChanged signal was emitted so that the dive-list can be updated. Arguably it is wrong to decide which fields are relevant to the dive list in the undo-command code. Therefore, let the list catch the dive-site-edited signal and decide itself. But the actual reason for this commit is that if the dive-site field of a dive changes, we might have to reload the dive-location-model because suddenly a new dive site appears. Now if this is done in QML context on some Qt version (notably 5.9) we get crashes later on. But that can happen if the user moves a flag. So in that case only send a diveSiteChanged signal. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-07-19Undo: make editing of dive number undoableGravatar Berthold Stoeger
When pressing F2 in the dive list, the number can be edited. Make this action undoable by implementing a EditNumber command. This command is differs from the other undo commands, as not the currently selected dives are changed. This means that the EditCommand needs an alternative constructor taking a single dive. This constructor was implemented in the base class so that all edit commands can now be called with a single dive. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-23Cleanup: unify selection signalsGravatar Berthold Stoeger
For historic reasons, there where three distinct signals concerning dive-selection from the undo-machinery: 1) divesSelected: sent newly selected dives 2) currentDiveChanged: sent if the current dive changed 3) selectionChanged: sent at the end of a command if either the selection or the current dive changed Since now the undo-commands do a full reset of the selection, merge these three signals into a single signal. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-23Undo: unify selection behavior in dive-list commandsGravatar Berthold Stoeger
Some commands tried to retain the current selection on undo/redo, others set the selection to the modified dives. The latter was introduced because it was easier in some cases, but it is probably more user-friendly because the user gets feedback on the change. Therefore, unify to always select the affected dives on undo()/redo(). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-23Undo: don't send signals batched by tripGravatar Berthold Stoeger
Since the default view is batched by trips, signals were sent trip-wise. This seemed like a good idea at first, but when more and more parts used these signals, it became a burden. Therefore push the batching to the part of the code where it is needed: the trip view. The divesAdded and divesDeleted are not yet converted, because these are combined with trip addition/deletion. This should also be detangled, but not now. Since the dive-lists were sorted in the processByTrip function, the dive-list model now does its own sorting. This will have to be audited. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-23Dive list: cache shown flag in model (quick-fix for undo-crash)Gravatar Berthold Stoeger
We have a very fundamental problem with data-duplication in core and qt-models. In a particular case, this led to an easily reproducible crash: 1) An undo command moved the last dive of a trip to another. 2) When an undo-command removed the last dive of a trip to a different trip, the dive was removed from the trip in the core. Then, the model was updated. 3) That lead at first to a rearrangement of the trips, because the trip with the added dive is moved before the trip with the removed dive. 4) In such a case, the filter-model checks the visibility of the trip. 5) Since the trip with the removed dive has no dives in the core, visibility was determined as false. 6) From this point on the mappings of the QSortFilterProxyModel were messed up. Accesses led to crashes. It is unclear whether this is a Qt bug or only a QOI issue. As a quick-fix, cache the visibility flag of trips directly in the Qt-models. Don't set the visibility directly in the core, but go via the Qt-models. Thus, a more clear layering is achieved. In the long run, we can hopefully get rid of the data-duplication in the models. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-19Cleanup: move trip-related functions into own translation unitGravatar Berthold Stoeger
These functions were spread out over dive.c and divelist.c. Move them into their own file to make all this a bit less monolithic. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-06-19Cleanup: move tag functions into own translation unitGravatar Berthold Stoeger
Make dive.h a bit slimmer. It's only a drop in the bucket - but at least when modifying tag functions not the *whole* application is rebuilt anymore. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-05-20Cleanup: fix a few comments and debug messagesGravatar Berthold Stoeger
This is just minor fixes that are not user-visible: Fix a few erroneous comments and a debug message. These are copy & paste mistakes and mistakes introduced during code- refactoring. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-05-15Cleanup: small coding style fixesGravatar Dirk Hohndel
And addressing a cut and paste error in a comment. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2019-05-12Cleanup: remove UTF8 macrosGravatar Berthold Stoeger
At some places we use UTF8 string literals. Therefore, we effectively only support UTF8 build systems. We might just as well remove all the other UTF_* macros and use direct string literals. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: update filter flag when dives changeGravatar Berthold Stoeger
The filter code is strange: it actually only checks the dive->hidden_by_filter flag. Thus, before propagating the dive changed signal, this flag has to be updated. Do this in the DiveTripModel. Ultimately, this should be refactored. Moreover, if the filter-flag changed notify the frontend of a changed trip so that the trip is hidden / unhidden. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: update dive list if trip changedGravatar Berthold Stoeger
In tree-mode, the trip locations are displayed. Update the corresponding entries if the trip changed, by hooking into the tripChanged() signal. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-01-07Dive list: split DiveTripModel into distinct models (tree and list)Gravatar Berthold Stoeger
The DiveTripModel was used to represent both, trip and list views. Thus many functions had conditionals checking for the current mode and both modes had to be represented by the same data structure. Instead, split the model in two and derive them from a base class, which implements common functions and defines an interface. The model can be switched by a call to resetModel(), which invalidates any pointer obtained by instance(). This is quite surprising behavior. To handle it, straighten out the control flow: DiveListView --> MultiFilterSortModel --> DiveTripModelBase Before, DiveListView accessed DiveTripModelBase directly. A goal of this commit is to enable usage of the same model by mobile and desktop. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-06Dive list: fix off-by-two bug in DiveTripModelGravatar Berthold Stoeger
Commit 911edfca712a046944de6d033cc4b8dd50cedfc3 changed the dive list on desktop to update positions of trips when adding/removing dives. A very unlikely case, but necessary for consistency. For a trip to be moveable down, its index has to be one-less than the maximum index, which is "items - 1". The code was doubly wrong: it forget the "1" and checked for less-or-equal instead less-than. Thus this was effectively an off-by-two error. Fix it. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-23Core: move is-single-day-trip and count-shown functions into coreGravatar Berthold Stoeger
These functionality was used by the desktop filter. To unify desktop and mobile, move it into two new functions in divelist.c Since one of them is the only caller of is_same_day() move that likewise into divelist.c and make it of static linkage. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-23Cleanup: make "struct dive *" and "struct dive_trip *" Qt metatypesGravatar Berthold Stoeger
Just as we did for pointer to struct dive_site, make pointers to struct dive and struct dive_trip "Qt metatypes". This means that they can be passed through QVariants without taking a detour via void *. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Dive list: update position of trip if data changedGravatar Berthold Stoeger
If the date of a dive changed, it might be necessary to reorder the trips, as the date of the trip changed. Although this seems like an odd usecase, move the trip if necessary, for consistency's sake. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Core: remove "when" field of struct dive_tripGravatar Berthold Stoeger
The when field gives the time of the first dive. Instead of keeping this field in sync, replace it by a function that determines the time of the first dive. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Coding style: fix indentation in addDivesToTrip()Gravatar Berthold Stoeger
addDivesToTrip() had one level of indentation too much owing to a copy-and-paste error. Remove. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Dive list: move sort-functionality into coreGravatar Berthold Stoeger
To make sorting more controlled, move all sorting functions into the core. For this, introduce a "dive_or_trip" structure, which represents a top-level item. Adapt the DiveTripModel accordingly. There are now three sorting functions: 1) dive_less_than 2) trip_less_than 3) dive_or_trip_less_than These should be used by all sorting code. By moving them to a single place, the mess can hopefully be cleaned up. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Dive list: replace dive-list of trips by a tableGravatar Berthold Stoeger
The dives of each trip were kept in a list. Replace this by a struct dive_table. This will make it significantly easier to keep the dives of a trip in sorted state. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-16Dive list: invert sort-direction to reflect coreGravatar Berthold Stoeger
Traditionally, the DiveTripModel has its data sorted in opposite direction to the core-data (chronologically descending vs. ascending). This bring a number of subtle problems. For example, when filling the model, trips are filled according to the *last* dive, whereas later insertion points are according to the ->when value from the core, which depends on the *first* dive. As a start of fixing these subtleties, change the sort direction to reflect the core-data. Ideally, this should lead to a removal of the redundant data-representation. Since the model is now sorted in ascending order, sorting has to be enabled in the DiveListView constructor to reflect the default-descending order. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-05Dive list: let sort arrows reflect sort order for NR and DATEGravatar Berthold Stoeger
The old code always sorted by "ascending" by default. But because users typically want their new dives top, "ascending" was defined for NR and DATE, such that it is actually descending. Turn these around and intitialize these two fields as default-descending. This is possible using the Qt::InitialSortOrderRole role in DiveTripModel::headerData(). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-04Dive list: use proper comparison when comparing dive to tripGravatar Berthold Stoeger
The DiveTripModels are sorted in *reverse* chronological order. Therefore, when comparing a dive against a trip, the dive has to be inserted if the dive has a *later* date. Change the comparison accordingly. Reported-by: Jan Mulder <jlmulder@xs4all.nl> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-04Undo: fix addition of multiple divesGravatar Berthold Stoeger
The generic addInBatches() function is used to add batches of contiguous sets of dives to the dive-list models. The loop searching for the end of the batch used the wrong index and would therefore not properly cut the batches. Fix this. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-01Dive list: implement custom lessThan functionGravatar Berthold Stoeger
The dive list was sorted using the default-sorter of QSortFilterProxy model. This is mighty inflexible as it considers only one column. This has the funky effect that for rows with identical elements, the sort order depends on the previous sorting. Implement a lessThan() function in the MultiFilterSortModel, which simply hands the sorting down to the actual model. This might be considered a layering violation, but it makes things so much easier. Sadly, it seems like the column-to-be-sorted is transported in the provided indices. Therefore, the comparison is chosen using a switch for *every* comparison. It would seem much more logical to set a function pointer once and use that. Further investigations are necessary. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-01Dive list: make filter model aware of its sourceGravatar Berthold Stoeger
The data-flow from C-core to list-view is as follows: C-core --> DiveTripModel --> MultiSortFilterModel --> DiveListView The control-flow, on the other hand, differs as DiveListView accesses both MultiSortFilterModel and DiveTripModel, whereas MultiSortFilterModel is mostly unaware of its source model. This is in principle legitimate, as the MultiSortFilterModel might be used for different sources. In our particular case, this is not so. MultiSortFilterModel is written for a particular use case. Therefore, model control-flow follow after data-flow: Let MultiSortFilterModel set its own source model and DiveListView access the MultiSortFilterModel, which then manages its source model. This is not bike-shedding, but will enable a more flexible and higher-performance sorting. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-28Cleanup: remove DiveTripModel::layout() functionGravatar Berthold Stoeger
This accessor was never used. This is a small step in splitting the DiveTripModel in two (list & tree), which means that the layout is moved up to the view. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>