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>
Properly implement the unsaved-changes flag(s). Since we currently have
two kinds of changes, there are two flags:
1) dive_list_changed in divelist.c marks non-undoable changes. This flag
is only cleared on save or load.
2) QUndoStack::isClean() is used to determine the state of undoable
changes. Every time the user returns to the state where they saved,
this flag is cleared.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
Undo of editing should probably also restore the old selection and
current dive. Therefore, move the functions that set and restore the
selection and the current dive from the command_divelist.cpp into the
command_private.cpp translation unit.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The dive list was not updated automatically when an edit command was
executed. There was already a signal to do that, viz. divesChanged().
But that signal worked by-trip and didn't have a dive-field specifier.
The edit-commands used the divesEdited() signal that isn't by-trip
but has a dive-field specifier.
Unify these two signals to be by-trip and with dive-field specifier.
This needs common code to generate the by-trip list that is moved to
a command_private.h header.
Since there might now be multiple signals (one per trip) actually
check in the main-tab whether the current trip is affected to
avoid multiple update of fields. This has the positive(?) effect
of not doing any update if the current dive isn't changed.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This is different from the other editing commands, because
date and time editing may change the order of the dive list.
Therefore, this uses an already implemented dive list command.
The command is extended to send a divesEdited() signal.
This signal and the divesChanged() signal, which is used by
the dive list, will be unified in a later commit.
Update of the graphics is now not done via signals, a direct
call is performed in MainTab::divesEdited(). This simplifies
things.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Introduce two DiveListNotifier signals which are sent by
the undo commands if dives are added to / removed from the
core.
The signal has the dive site and the index in the global
dive site table as payload. Thus, the model has only to
remove the appropriate rows.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
For consistency with remove_dive(). Moreover, swap parameter order
in remove_dive() so that both functions use the same parameter order.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
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>
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>
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>
6bf4120dbb replaced the trip flag by
a notrip boolean. This was supposed to signal that the user removed
the dive from a trip and therefore it shouldn't be autogrouped again.
Sadly, the commit removed the feature. Reinstate it.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Update the filter counts if dives were added removed by the
undo commands. The undo commands call into the filter model
at the right time so that hidden_by_filter is already set.
The filter model keeps track of the counts and emits a signal,
which is caught by the widget.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
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>
The logic in process_imported_dives() was faulty: Dives are merged
trip-wise in a loop. But if only autogenerated trips were supposed
to be merged, the trip would not be added.
Change the logic to always add the trip if it is not merged. To make
the loop easier to read, factor out the merge-trip-into-existing-trips
logic into a separate function.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
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>
Currently trips are added to the global trip table. If we want to
make dive-import undoable, we should be able to parse trips of a
log-file into a distinct table. Therefore, add a trip_table
parameter to
- insert_trip()
- create_and_hookup_trip_from_dive()
- autogroup_dives()
- unregister_trip()
- remove_dive_from_trip()
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
Currently, all trips are kept in a linked list. Replace the list
by a table in analogy to dive_table. Use this to keep the trip_table
sorted as suggested by dump_trip_list(). When inserting a trip into
the table do that after adding the dives, to avoid warnings coming
out of dump_trip_list().
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Rename
- dive_get_insertion_index() -> dive_table_get_insertion_index()
- unregister_dive_from_table() -> remove_from_dive_table()
- get_idx_in_table() -> get_idx_in_dive_table()
- sort_table() -> sort_dive_table()
This will make it more straight-forward to generate these functions
from macros.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Currently autogroup_dives() groups all dives in the global dive
list. Add a table parameter so that dives in any table can be
grouped. Thus it will be possible to pre-group dives on import,
which will be used for undo of import.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
In commit 6bf4120dbb the trip-flags
were replaced by a simple boolean. This made the was_autogen
parameter to the remove_dive_from_trip() and unregister_dive_from_trip()
functions unused. Remove these parameters.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Unsure where this bug got introduced, but when asking for the dive
time to be shifted 1 hour later, the divelist and the dive details
showed 1 our earlier.
Fixes: #1893
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
In 302f6adb79 dive-splitting was made
undo-able. To this goal, the dive-splitting functions were split in
two types: Those that operate directly on the divelist and those that
only allocate the dives. The former are not in use anymore, therefore
remove them. Since only the latter remain, remove the "_dont_insert"
appendix of the name.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
In f427226b3b a combine_trips_create()
function was introduced that combined trips without deleting the old
trips. This was necessary for making combine-trips function undo-able.
The old combine_trips() function is not used anymore. Therefore remove
it. Rename the combine_trips_create() function to combine_trips() as
no differentiation is needed anymore.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
In moveDivesBetweenTrips() a the model is informed of dives
that are moved between trips. A flag tells the model to delete
empty trips. If dives were removed in batches [use case: split
a big trip into multiple smaller trips] the flag would be sent
for every batch. This was handled gracefully by the model code,
but it gave a warning message.
Set the flag only for the last batch, when the trip is *really*
empty.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
... otherwise this change is not saved when saving to git.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
On shift-times, the list of dives in a trip may become disordered.
Reestablish order with sort_table().
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
Up to now, dives were added to the global dive table with
add_single_dive(). Split out the funtionality to add a dive to
an arbitrary dive in the add_dive_to_table_function(). The
difference compared to record_dive_to_table is that dives
are added at a specific position or the sort-criterion given
by dive_less_than(). This will allow to use a dive tabe for trips
instead of a linked list.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
There were two versions of the insert_trip() function: one
would merge trips if a trip with the same date already existed,
the other wouldn't. The latter was introduced with the dive-list
undo work.
The problem is that the "date" of a trip (i.e. the first dive)
seems ill-defined as this is a volatile value. Moreover in
the context of making dive-import undoable this is a very
dangerous notion, as the caller needs control over when the dives
are added to a trip.
Therefore, unify these two functions and never merge trips.
The decision on merging dives now has to made by the caller.
This will be implemented in a future commit.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
Instead of reloading all the filter, only increment / decrement the
count of the entries of added / removed dives.
Originally, this was planned to be done via the signals from the
divelist, but it turned out that this was suboptimal, because
if the filter decides that the new item is selected, this has to
be done *before* adding the dive. Otherwise, it wouldn't be shown.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
When adding dives to the list, set the filter flag accordingly.
Thus, dives that are hidden by the filter are not shown on
redo/undo.
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>
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>
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>
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>
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>
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>
insert_trip() adds a trip to the backend, but merges trips if
there exists a trip with the same date. This is a disaster
for the MergeTrips command, because this command adds a new
trip and removes the previous two. Of course if the added trip
is merged, this cannot work.
Therefore, add an insert_trip_dont_merge() function, which
adds the trip, but doesn't merge.
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>
Play manual addition of dives via an UndoCommand. Since this does in
large parts the same thing as undo/redo of dive deletion (just the
other way round and only a single instead of multiple dive), factor
out the functions that add/delete dives and take care of trips.
The UI-interaction is just mindless copy&paste and will have to
be adapted.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
