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>
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>
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>
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>
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>
In 2e230da361 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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Commit 6dc1d239f8 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>
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>
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>
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>
Remove three cases of rememberSelection() which did not possess
the corresponding restoreSelection() twins.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
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>
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>
In commit 9829e49815 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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
This debugging-slot was not linked anywhere. And especially in the
light of the impending refactoring of DiveListView/DiveTreeModel
it seems pointless to keep old debugging code.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
