There were helper functions to access O2 and He component fractions.
Add another one for N2. Indeed, this can be used in three cases, where
N2 was deduced indirectly.
Moreover, add a general accessor with a gas_component argument.
This will be used by the filter code to filter for gas components.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The cylinder model is used both in the planner and the
equipment tab. We have three preferences for the pO2 that
is used to compute MOD: In the planner, there is one for
the bottom part of the dive and another one for deco.
Those are set in the planenr UI. There is another value,
controlled in the Tec Prefernces. That one should be
used in the equipment tab rather than the one from
the planner.
Fixes#2984
Signed-off-by: Robert C. Helling <helling@atdotde.de>
The function was called on a freshly copied dive, which has its git cache
invalidated automatically in copy_dive().
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
delete_divecomputer had legacy code, which
1) invalidated the git dive cache
2) made sure that the dive computer was not displayed anymore
However, both callers called on a freshly copied dive, which
has its dive cache invalidated in copy_dive() and can't be
the currently displayed dive. Therefore, this code is dead
code and can be removed.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
There is a number_of_computers() function which does
the same thing with two exceptions:
1) checks for null-dive
2) returns an unsigned int
Replace calls to count_divecomputers() by calls to number_of_computers().
In one case, the return type makes a different - add a cast to int there.
Ultimately, we should probably change the dc_number to signed int
throughout the code.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
get_dive_country() was essentially a reimplementation of taxonomy_get_country().
Let's just use the already existing function.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This adds a common macro to convert salinity (which is
given as a density in terms of g per 10l) to a specific
weight with units of mbar / mm = bar / m that is used
to translate between pressures and depths.
The weired factor of 10 (from the unusual unit of salinity)
is included in the macro. It is there for historical reasons,
as it goes back to 05b55542c8 from 2012 where it was introduced
in code for downloading from Uemis dive computers.
Now, salinity appears in too many places to easily remove
this unconventional factor of 10 everywhere without breaking
to many things (including various dive computer downloads).
Signed-off-by: Robert C. Helling <helling@atdotde.de>
When the dive has no explicity salinity, our conversion
between pressure and depth assumed salt water. Make this
explicity by using the corresponding macro.
When the planner starts and no salinity is set explicity,
set the water type chooser to salt water to reflect
our default assumption.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
The merge_events() function was subtly and not-so-subtly broken in a
couple of ways:
- in commit 8c2383b49 ("Undo: don't modify source-dives on merge"), we
stopped walking the event list after we merged the first event from a
dive when the other dive computer had run out of events.
In particular, this meant that when merging consecutive dives, the
second dive only had the first event copied over to the merged dive.
This happened because the original code just moved the whole old list
over when there was nothing left from the other dive, so the old code
didn't need to iterate over the event list. The new code didn't
realize that the pointer movement used to copy the whole rest of the
list, and also stopped iterating.
In all fairness, the new code did get the time offset right, which
the old code didn't. So this was always buggy.
- similarly, the "avoid redundant gas changes" case was not handled for
the "we ran out of events for the other dive computer" case.
This fixes both issues.
Cc: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A while ago, we introduced a preference whether O2 should
be considered narcotic. We used this when computing
best mix or when entering the He content via MND. But
we forgot to make the displayed MND depend on this
preference. This patch add this.
Fixes#2895
Signed-off-by: Robert C. Helling <helling@atdotde.de>
We did something really horribly wrong when merging cylinders. It's
been broken since commit 7c9f46a ("Core: remove MAX_CYLINDERS
restriction"), and used some really strange logic.
This rewrites the logic to be (I think) a bit more easy to understand.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The last caller was removed in 7eb422d988.
Since this is the only caller of dive_within_time_range(), remove that
function as well.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This one is a bit hairy, because two things might happen if the
picture has a geo location:
- A dive gets a newly generated dive site set.
- The dive site of a dive is edited.
Therefore the undo command has to store keep track of that.
Oh my.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Move the two functions create_picture() and picture_check_valid_time()
from dive.c to picture.c.
This might be somewhat questionable, as these functions are not purely
picture related, but check the nearest selected dives, etc. However,
dive.c is so huge, that slimming it down can't hurt. Moreover,
getting the nearest selected dive is more divelist- than dive
functionality anyway.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
If we want to make addition of pictures undoable, then create_picture()
must not add directly to the dive. Instead, return the dive to which the
picture should be added and let the caller perform the addition.
This means that the picture-test has to be adapted.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
We can do the same with get_picture_idx(). Yes, it is a bit more
unwieldy. However a full reimplementation seems not worth it.
We could make this a one-liner helper function though.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
For consistency with equipment, use our table macros for pictures.
Generally tables (arrays) are preferred over linked lists, because
they allow random access.
This is mostly copy & paste of the equipment code.
Sadly, our table macros are quite messy and need some revamping.
Therefore, the resulting code is likewise somewhat messy.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Since this doesn't touch struct dive, dive.c is not an appropriate
place for this function.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
These can be useful in a printed divelog, especially if the
log entry is also showing weight and exposure suit.
Signed-off-by: Monty Taylor <mordred@inaugust.com>
When we had fixed-sized cylinder arrays, the planner used the last
empty cylinder for "surface air". This was not recognized by the UI
as a separate cylinder, because "empty cylinder" was the sentinel for
the end of the table. The conversion to dynamically sized cylinder
tables broke this code: everytime the surface segment is changed,
a new dummy cylinder is added, which is visible in the UI.
As a very temporary stop-gap fix, emulate the old code by creating
a cylinder and then setting the end-of-table to before that cylinder.
This means that we have to loosen the out-of-bound checks.
That's all very scary and should be removed as soon as possible.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Arguably, returning 0 for a dive with no cylinders is wrong, since the
0 is a valid cylinder id, however that cylinder doesn't exist. Instead,
return -1. All callers of explicit_first_cylinder() return early anyway
for dives with no cylinders.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The planner does not know about events except gas
changes. But if the dive comes from the log, we
should preserve the dive computer events. At least
those that happend before we started to delete
waypoints to let the planner take over.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
This fixes a bug: when deleting a picture when multiple dives
were selected, possibly the wrong dive was invalidated.
Thus, the dive wouldn't have been saved to the git repository.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
There is the free_picture() function with the same functionality.
The compiler/linker should recognize that and remove the duplicate
code, but still...
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
For undo, we want to create gas change events without adding them
immediately to the dive computer.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Since all the other event-functions are also defined there.
Ultimately, we should probably move them to their own
event.c translation unit.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
There is a slight complexity here owing to the fact that the profile
works on a copy of the current dive: We get a copy of the event and
have to search for the original event in the current dive. This
could be done in the undo command. Nevertheless, here we do it in
the profile so that when in the future the profile can work on a
non-copied dive we can simply remove this function.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
We have a remove_event() function that
1) frees the event
2) works on the current divecomputer
3) compares the events because the profile has copies of events
However, for undo commands
1) we want to keep the event so that we can readd it later
2) we have to work on arbitrary divecomputers
3) we don't work with copies of events
Therefore, create a new remove_event_from_dc() function that
does all that. Moreover, make the event argument to remove_event()
const to (slightly) point out the difference in the API.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
add_event() creates and adds an event from the given parameters.
For undo, we want to do these separately, therefore split this
function in two parts: create_event() and add_event_to_dc().
Keep the add_event() function for convenience. Moreover, keep
the remember_event() call in there, so that undo-commands can
call remember_event() once, not on every undo/redo action.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Grammar-nazi ran
git grep -l 'indexes' | xargs sed -i '' -e 's/indexes/indices/g'
to prevent future wincing when reading the source code.
Unfortunatly, Qt itself is infected as in
QModelIndexList QItemSelection::indexes() const
Signed-off-by: Robert C. Helling <helling@atdotde.de>
For reasons which I don't yet understand, when plotting a dive
whose first cylinder is not cylinder 0 and then plotting a dive
with only one cylinder, it can happen that for the latter
explicit_first_cylinder() returns an erroneous value.
This is due to the way in which we copy the dive to be plotted
to displayed_dive.
For now, make sure that no invalid cylinder is returned to avoid
crashes. This will have to be changed anyway, since this is very
fundamentally not thread-safe and inefficient.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
When loading dive data, populate the fulltext index. When clearing
dive data, free the fulltext index. When deleting a dive, remove it
from the fulltext index.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Commit dbb504 tried to prevent an uninitialized dc pointer
from being dereferenced. But I screwed up the logic always
setting the event pointer to NULL. This fixes this error.
Reported-by: willemferguson@zoology.up.ac.za
Signed-off-by: Robert C. Helling <helling@atdotde.de>
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>
The tab was crashing if there were no cylinders because
1) per_cylinder_mean_depth() would access non-existing cylinders.
2) TabDiveInformation::updateProfile() would access a non-existing
mean.
Fix both of these crash conditions by checking whether the dive
actually has cylinders.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
As a convenience, return the cylinder from add_empty_cylinder()
to spare the caller from the nasty expression to fetch the
last cylinder.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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>
Thus, future callers will not have to include the monster dive.h
include if they just want to copy cylinders.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Move the loop body of copy_cylinder_types() into its own function.
When using variable sized arrays, this loop will have to treat two
cases (overwrite cylinder and add new cylinder), so that makes things
more clear.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
merge_cylinders() used three bitmaps to identify cylinders used in
the first and second dive and matched cylinders. Even though nobody
will use more than 32 (or 64!) cylinders, replace these with
dynamically allocated bool-arrays for consistency with the rest
of the code.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
