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path: root/desktop-widgets/divelistview.cpp
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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>
2019-10-20Cleanup: use pointer-to-member-function in addAction() callsGravatar Berthold Stoeger
Since requiring Qt >= 5.9.1, we can use the pointer-to-member-function overloads of addAction (introduced in Qt 5.6). This has the advantage of compile-time checking of the signal/slot parameters. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-09-06Map: highlight correct dive sites in dive site modeGravatar Berthold Stoeger
Since changing the highlighting to use the selected dive, dive sites with no dive were never highlighted in dive site mode. Obviously, because there was no dive to be selected. Therefore special-case all dive-site selection code to recognize when we are in dive site mode. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-09-06Selection: properly update selection flag of map locationGravatar Berthold Stoeger
Owing to the recent changes, when the selection flag in the MapLocationModel was not updated correctly when the user manually selected the dive. Do that before raising the divesSelected signal in DiveListView::selectionChanged() because that will cause the MainWindow to repaint the flags. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-09-06Desktop: show all selected dive sites on clickGravatar Berthold Stoeger
When clicking a dive site on the map, the QML code would set the selected dive site, but then all dives of dive sites in the vicinity were set. But still only the clicked-on dive site was shown. Therefore, don't set the list of selected dive sites in QML, but later in DiveListView::selectDives(), where we know all the dives that were selected. This, again, gives nasty entanglement of diverse widgets and models. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-08-08Cleanup: move error reporting function declarations to errorhelper.hGravatar Berthold Stoeger
Move the declarations of the "report_error()" and "set_error_cb()" functions and the "verbose" variable to errorhelper.h. Thus, error-reporting translation units don't have to import the big dive.h header file. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-07-04Cleanup: avoid spurious updateDiveInfo() callsGravatar Berthold Stoeger
In 2e230da3610dd1fc61badaf328a084512895fb90 the dive-selection signals were unified. Sadly, this was done in a suboptimal way resulting in numerous calls to updateDiveInfo(), which refreshes the main-tab. Firstly, the MainWindow connected to selection changes from both, the undo-command and the divelist. Secondly, every selected dive in the divelist caused a single signal. Thus, connect only to the divelist (this is necessary for user-initiated selection changes) and only send a single signal in the divelist per selection-reset. This is still less than perfect as updateDiveInfo() is called even if the current dive doesn't change. 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>
2019-06-19Cleanup: 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>
2019-05-11Selection: automatically unselect old selection in selectDives()Gravatar Berthold Stoeger
DiveListView::selectDives() would only select new dives but not clear the old selection. Thus, callers would have to clear the selection first. That would lead to two selection-changed signals. Move the unselectDives() call into DiveListView::selectDives(). The DiveListView has an internal flag to prevent double signals. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12Undo: switch to edited tripGravatar Berthold Stoeger
If fields in a trip are edited, select that trip, which will display the trip in the notes-box. This is realized by hooking into the tripChanged signal in the dive-list. A layering-violation, perhaps? Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-04-12replace deprecated qSort() with std::sort()Gravatar Rolf Eike Beer
Signed-off-by: Rolf Eike Beer <eike@sf-mail.de>
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>
2018-12-14Drop old filter codeGravatar Tomaz Canabrava
Drop tons of now-unused-code. Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
2018-12-13Dive media: add media to closest diveGravatar Berthold Stoeger
Currently, when selecting "Load media files even if time does not match the dive time", the media are added to *all* selected dives. Instead add it to the closest dive. This seems like the less surprising behavior. Of course now if the user really wants to add a media file to multiple dives, they will have to do it manually. To avoid a messy interface, this is solved by moving the iterate- over-selected-dives loop to the core. Thus, a helper-function can be made local to its translation unit. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-11Cleanup: don't leak filename on picture creationGravatar Berthold Stoeger
dive_create_picture() is called from DiveListView::matchImagesToDives() with a copy of the picture-filename. But: - On error the filename is not freed - On success the filename is strdup()ed Thus, in all cases the memory is lost. Instead, pass in a temporary buffer using qPrintable(). 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>
2018-11-16Dive 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: remove sortColumn and currentOrder membersGravatar Berthold Stoeger
Since the QHeaderView of DiveListView is now the authority over sort-column and sort-order, it makes little sense to keep these as member variables. That would only risk inconsistencies. Remove them and query the QHeaderView instead. We still need to keep track of currentLayout, as we have to detect if it changes to change the underlying model from tree to list or vice-versa. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-05Dive list: split reload() in reload() and setSortOrder()Gravatar Berthold Stoeger
The DiveListView code had a very fundamental problem with its header: Each had its own idea of who is responsible for sorting. Since we can't easily change QHeaderView, accept QHeaderView as the authority on sort-column and order. To make this possible, split the reload() function in two distinct functions: - reload() reloads the model and sorts according to the current sort criterion. - setSortOrder() tells the header to display a certain sort criterion. If this is a new criterion, it will then emit a signal. In this signal, resort according to that criterion. Thus, the actual sorting code has to be moved from the headerClicked() to a new sortIndicatorChanged() slot. Morover, the sorting of the QHeaderView has to be used. Reported-by: Stefan Fuchs <sfuchs@gmx.de> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-02Dive list: invert default sort order for sort by date / numberGravatar Berthold Stoeger
Commit 6dc1d239f81f16133d5954bd2b21ffa0c2dcc755 introduced a well-defined sort order in the case of equal contents. It changed the code for sorting by date to simply use the order of the source model. BUT: The source-model was already sorted in descending order on date. Thus setting the default order on descening by date, the data was then presented as *ascending* by date. Change this back to descending by always using default-ascending in the filter model. Ultimately, the source model should simply reflect the ordering of the core-data (ascending on date), but such a change is too invasive shortly before release. Reported-by: Jan Mulder <jlmulder@xs4all.nl> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-01Dive list: remove forceSort parameter from DiveListView::reload()Gravatar Berthold Stoeger
DiveListView::reload() was called for full reset of the dive list and for changing the view (tree vs. lis) in DiveListView::headerClicked(). Since the latter does sorting by itself, a parameter "forceSort" was introduced, which defaulted to true, but was set to false by DiveListView::headerClicked(). To remove complexity, simply let DiveListView::headerClicked() set the view by itself and remove tha parameter. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-01Dive list: connect header-signal in constructorGravatar Berthold Stoeger
The QHeaderView::sectionPressed() signal was connected everytime the list-view was reset. Likewise, setSectionsClickable() was set to true everythime the list-view was reset. Once in the constructor is enough. 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>
2018-10-28Dive list: remove rememberSelection() without restoreSelection()Gravatar Berthold Stoeger
Remove three cases of rememberSelection() which did not possess the corresponding restoreSelection() twins. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-28Dive list: remember/restore selection only on view changeGravatar Berthold Stoeger
The selection was remembered/restored anytime the sort-order changed. Yet, this is only necessary if the view (tree, list) changes. Therefore, handle the selection only if this is the case. This automatically fixes the problem of the trip-selection not being remembered if the view doesn't change. If the view does change, trip selection is lost. But since the list view doesn't have trips to start with, losing trip-selection seems like an understandable behavior. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-28Dive list: show sort indicatorGravatar Berthold Stoeger
On desktop, show the a sort indicator to give a visual feedback on changes of the sort order. This is trivially done by calling the setSortIndicatorShown() function in DiveListView's constructor. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-28Dive list: switch to a default sort order on column-header clickGravatar Berthold Stoeger
On desktop, clicking on a column header sorts the dive-list. This has the interesting property that every click reverses the sort order (unless changing from list to tree-mode). The much more common idiom seems to be to define a default sort order for each column and switch to that when changing sort-column. Switch order after clicking the same column again. Implement this more common behavior. For now, sort # and date in descending, all other columns in ascending order. While doing this, use the proper enum (NR) for setting the default sort-column instead of its integer representation (0). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-25Dive list: emit selectionChanged signal in filterFinished()Gravatar Berthold Stoeger
In commit 9829e49815de1b81b5c9848b71eaa810faab2bcf the dive selection code was moved from the filter to the dive list. As a consequence of that change, the selectionChanged signal was not emitted anymore and therefore the map widget was not informed of the new dive site list. This had funky effects on the dive-site editing. Notably, changing the location would move the map, but not update the flag. Explicitly emit selectionChanged in filterFinished() to fix dive site editing. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-21Dive list: remove three unnecessary instances of qobject_cast<>.Gravatar Berthold Stoeger
In DiveListView, the result of model() was dynamically cast to QSortFilterProxyModel. But then, only the virtual match() function was used. The whole point of virtual functions is that you can cast them on the base-class and it will execute the function of the derived class. Thus, remove these casts and operate directly on the QAbstractItemModel base class. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-21Dive list: move dive-selection code from filter to listGravatar Berthold Stoeger
After invalidating the filter, the dive-selection was modified to ensure that at least one dive is selected. This was done in the filter code, but it seems preferrable to do this in the dive-list code, which has direct access to the selection-model. Therefore, move the code from MultiFilterSortModel to DiveListView. While doing so, split the code in DiveListView into more functions to: 1) Get the index of the first dive (if any). 2) Select the first dive (if any). This allows a distinct size reduction of conditional compilation in MultiFilterSortModel (accesses to MainWindow are not possible in mobile code). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Dive list: propagate current-item to frontendGravatar Berthold Stoeger
The command-objects select a current item, but this selection was not propagated to the front-end. The current item is the base for keyboard-navigation through the dive-list and therefore should be set correctly. It took some experimentation to get the flags right: QItemSelectionModel::Current Hopefully, these are the correct flags across all supported Qt versions! Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Dive list: expand trips if dives are selectedGravatar Berthold Stoeger
If dives are deleted, the trip(s) containing the dives are expanded. Thus, on undo it seems natural to re-expand the trip. 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>
2018-10-11Dive list view: replace signal-magic by flagGravatar Berthold Stoeger
In DiveListView, we have a very fundamental problem: When On the one hand, we get informed of user-selection in the DiveListView::selectionChanged() slot. This has to set the correct flags in the C-backend. On the other hand, sometimes we have to set the selection programatically, e.g. when selecting a trip. This is done by calling QItemSelectionModel::select(). But: this will *also* call into the above slot, in which we can't tell whether it was a user interaction or an internal call. This can lead to either infinite loops or very inefficient behavior, because the current dive is set numerous times. The current code is aware of that and disconnects the corresponding signal. This is scary, as these signals are set internally by the model and view. Replace this by a global "command executing" flag in DiveListNotifier. The flag is set using a "marker" class, which resets the flag once it goes out of scope (cf. RAII pattern). In DiveListView, only process a selection if the flag is not set. Otherwise simply call the QTreeView base class, to reflect the new selection in the UI. To have a common point for notifications of selection changes, add such a signal to DiveListNotifier. This signal will be used by the DiveListView as well as the Command-objects. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Dive list: remember selected divesGravatar Berthold Stoeger
Don't delesect dives, when unregistering them from the backend. If a previously selected dive is added, select it in the dive-list. For this purpose introduce a SELECTED_ROLE to query the DiveTripModel for selected dives. Unfortunately, when adding multiple selected dives, current_dive_changed is called for each of them, making this very slow. This will have to be fixed in subsequent commits. 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>
2018-10-11Undo: make diverse trip-related operations undo-ableGravatar Berthold Stoeger
AddDivesToTrip, CreateTrip, AutogroupDives, RemoveAutogenTrips and MergeTrips basically all did the same thing as RemoveDivesFromTrip, which was already implemented. Thus, factor our the common functionality and hook it up to make all these functions undo-able. Don't do the autogroup-call everytime the dive-list is rebuilt (that would create innumberable undo-actions), but only on dive-load / import or if expressly asked by the user [by switching the autogroup flag]. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: implement rudimentary support for undo of dive-mergingGravatar Berthold Stoeger
For this, an output-parameter was added to the backend merge_dives() function. When non-zero, instead of adding the merged dive to the preferred trip, the preferred trip is returned to the caller. Since the new UndoObject, just like the delete-dives UndoObject, needs to remove/readd a set of dives, the corresponding functionality was split-off in a helper function. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: implement rudimentary support for undo of dive-splittingGravatar Berthold Stoeger
For this, the core functionality of the split_dive() and split_dive_at_time() functions were split out into new split_dive_dont_insert() and split_dive_at_time_dont_insert(), which do not add the new dives to the log. Thus, the undo-command can take ownership of these dives, without having to remove them first. The split-dive functionality is temporarily made desktop-only until mobile also supports "UndoObjects". Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: fix multi-level undo of delete-dive and remove-dive-from-tripGravatar Berthold Stoeger
The original undo-code was fundamentally broken. Not only did it leak resources (copied trips were never freed), it also kept references to trips or dives that could be changed by other commands. Thus, anything more than a single undo could lead to crashes. Two ways of fixing this were considered 1) Don't store pointers, but unique dive-ids and trip-ids. Whereas such unique ids exist for dives, they would have to be implemented for trips. 2) Don't free objects in the backend. Instead, take ownership of deleted objects in the undo-object. Thus, all references in previous undo-objects are guaranteed to still exist (unless the objects are deleted elsewhere). After some contemplation, the second method was chosen, because it is significantly less intrusive. While touching the undo-objects, clearly separate backend from ui-code, such that they can ultimately be reused for mobile. Note that if other parts of the code delete dives, crashes can still be provoked. Notable examples are split/merge dives. These will have to be fixed later. Nevertheless, the new code is a significant improvement over the old state. While touching the code, implement proper translation string based on Qt's plural-feature (using %n). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-09-15Update the dive list context menu to reflect new media interfaceGravatar willemferguson
A minor change to the UI. The wording of the two items in the dive list context menu "Load image(s) from file(s)" and "Load image from web" are updated since we now deal with both images and videos. So it becomes "Load media from file(s)".... etc. Signed-off-by: willemferguson <willemferguson@zoology.up.ac.za> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2018-09-04Desktop: buddies in the dive listGravatar Jan Mulder
As proposed in RFC #1587, now also alllow buddies to be shown in the divelist. Fixes: #1587 Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
2018-09-01Cleanup: make DiveTripModel a global objectGravatar Berthold Stoeger
DiveTripModel (the model describing the dive-list) was destroyed and recreated on every reset of the list. This seems excessive. Instead - in analogy to most other models - make it a single global object. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-29Dive trips: don't crash on repeated trip-removalGravatar Berthold Stoeger
In the UI it is possible to remove a dive from a trip twice, which leads to a crash, because trip is NULL (obviously). Instead of doing a proper fix (don't show the "remove from trip" entry in the first place), ignore dives without a trip, since a rewrite of the undo-code is planned for the medium future anyway. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-26divelistview: always show at least one columnGravatar Lubomir I. Ivanov
Currently it is possible to hide all columns by unchecking them in the context menu that appears by right clicking the header of the divelist. But once all are hidden the header disappears. This can cause a situation where the user cannot show any columns and the only fix for that is to edit the application configuration. To avoid this sutuation prevent the last column from being hidden. Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
2018-07-30Cleanup: remove DiveListView::fixMessyQtModelBehaviour()Gravatar Berthold Stoeger
The function DiveListView::fixMessyQtModelBehaviour() was used to expand the first columns of dive-trips in the dive-list view. This function was called everytime that the dive-list was modified. It is kind of ludicrous that external callers would have to tell the DiveListView, when it has to update its column headers. Instead, place this functionality in the overriden reset() and rowsInserted() functions, as these are the only ways that rows can be added. Change the DiveTripModel to use the proper beginResetModel()/endResetModel() pair instead of the previous full deletion and full repopulation using the beginRemoveRows()/ endRemoveRows() and beginInsertRows()/endInsertRows(). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-07-30Cleanup: remove parameter from currentDiveChanged signalGravatar Berthold Stoeger
The currentDiveChanged signal was emitted by the DiveListView to inform the MainWindow of a change of current dive. The new current dive was passed as a parameter. The slot in MainWindow then called select_dive() on the dive. This seems pointless because: 1) In both emits, selected_dive dive was passed as argument. But MainWindow can read this global variable itself. 2) Calling select_dive() again is a no-op, because obviously, this already *was* the selected dive. Moreover it seems conceptually wrong to set the current dive in the slot that is informed of the change of the current dive. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>