We have this odd legacy notion of a divecomputer 'device', that was
originally just basically the libdivecomputer 'EVENT_DEVINFO' report
that was associated with each dive. So it had firmware version,
deviceid, and serial number.
It had also gotten extended to do 'nickname' handling, and it was all
confusing, ugly and bad. It was particularly bad because it wasn't
actually a 'per device' thing at all: due to the firmware field, a dive
computer that got a firmware update forced a new 'device'.
To make matters worse, the 'deviceid' was also almost random, because
we've calculated it a couple of different ways, and libdivecomputer
itself has changed how the legacy 32-bit 'serial number' is expressed.
Finally, because of all these issues, we didn't even try to make the
thing unique, so it really ended up being a random snapshot of the state
of the dive computer at the time of a dive, and sometimes we'd pick one,
and sometimes another, since they weren't really well-defined.
So get rid of all this confusion.
The new rules:
- the actual random dive computer state at the time of a dive is kept
in the dive data. So if you want to know the firmware version, it
should be in the 'extra data'
- the only serial number that matters is the string one in the extra
data, because that's the one that actually matches what the dive
computer reports, and isn't some random 32-bit integer with ambiguous
formatting.
- the 'device id' - the thing we match with (together with the model
name, eg "Suunto EON Steel") is purely a hash of the real serial
number.
The device ID that libdivecomputer reports in EVENT_DEVINFO is
ignored, as is the device ID we've saved in the XML or git files. If
we have a serial number, the device ID will be uniquely associated
with that serial number, and if we don't have one, the device ID will
be zero (for 'match anything').
So now 'deviceid' is literally just a shorthand for the serial number
string, and the two are joined at the hip.
- the 'device' managament is _only_ used to track devices that have
serial numbers _and_ nicknames. So no more different device
structures just because one had a nickname and the other didn't etc.
Without a serial number, the device is 'anonymous' and fundamentally
cannot be distinguished from other devices of the same model, so a
nickname is meaningless. And without a nickname, there is no point in
creating a device data structure, since all the data is in the dive
itself and the device structure wouldn't add any value..
These rules mean that we no longer have ambiguous 'device' structures,
and we can never have duplicates that can confuse us.
This does mean that you can't give a nickname to a device that cannot be
uniquely identified with a serial number, but those are happily fairly
rare (and mostly older ones). Dirk said he'd look at what it takes to
give more dive computers proper serial numbers, and I already did it for
the Garmin Descent family yesterday.
(Honesty in advertizing: right now you can't add a nickname to a dive
computer that doesn't already have one, because such a dive computer
will not have a device structure. But that's a UI issue, and I'll sort
that out separately)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If the last displayed dive had events, those DiveEventItems had slots connected
that would update those icons if things changed. When closing the dive log and
switching to a different one, those slots were still called and would then access
freed memory (the event structure from that old dive that is long gone by then).
This code explicitly deletes those DiveEventItems which also removes those signal
slot connections.
Fixes#3305
Sugested-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
If we download a first dive computer and add a dive site to the dive (by
setting a location name for example), and then download from another
dive computer that provides us with GPS data, we should keep the
existing dive site information, but add the GPS data from the freshly
downloaded dive computer.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Commit e42fc1a1e9 introduced a
crash condition. Apparently the code attempts to test whether
the clicked-on item is a top-level dive. The "Collapse others"
menu item should not be shown in that case. It does this by
testing "d->divetrip". However, "d" might quite logically be
null if clicking on an unexpanded trip header.
Therefore, check explicitly for the trip header case (which
should show the menu item) and for good measure prevent
the nullpointer access (that should be caught by testing
for trip, but who knows).
Fixes#3301.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This adds a cleanup function to be called after a divelogs.de upload
finishes (successful or not) to make sure the temporary zip file is
closed and removed.
Signed-off-by: Richard Fuchs <dfx@dfx.at>
On multi-user systems with a shared directory for temporary files, using
a static file name can lead to permissions problems and subsequent
errors due to collisions. Use a random unique file name for each
generated file to avoid these problems.
Note: the temporary file generated from the divelogs.de upload is still
left behind after the upload finishes.
Signed-off-by: Richard Fuchs <dfx@dfx.at>
The DiveCalculatedCeiling had a back-pointer to the profileWidget.
This was used for weird control-flow shenanigans, which were
removed in 975c123a30.
Remove this now useless member variable.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The shouldCalcluateMaxTime and shouldCalculateMaxDepth member
variables of ProfileWidget2 are set to false during drag-mode to
avoid strange shrinking of the graph. They always adopt the
same value. Therefore, replace by a single shouldCalculateMax
boolean.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
I thought that explicitly requesting Qt5 should be enough, but we have a report
from a user who tried to build against Qt6 and cmake happily let them proceed.
So let's fail this explicitly.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The intent of the code was to check that there is a string and it has at least
two characters. Since iter is the result of a strchr(iter, '|') call, we
know that if iter isn't NULL, iter[0] is '|', so we only need to check the next
character.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
try_to_xslt_open_csv() re-allocates the memory passed in (not really great as
far as design goes, maybe something that should be reimplemented). Doing
pointer arithmatic with the returned base pointer results in garbage, unless
one gets super lucky and the realloc manages to not move the memory.
It's a wonder this ever worked.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Before making the cylinder-table dynamic, dives always
had at least one cylinger. When such a dive is displayed,
the TabDiveInformation class calls per_cylinder_mean_depth().
If there are no samples, this function generates a "fake
profile" with fake_dc(). Thus, effectively dives always
had samples once the user was displaying them.
When the cylinder-table was made dynamic, dives without
cylinders were supported. This can notably happen, when
importing from CSV (this could actually be a bug).
per_cylinder_mean_depth() exits early in that case and
doesn't create a fake profile. This lead to crashes
of the profile-widget, which were fixed in 6b2e56e513.
Non-sample dives were now shown with the Subsurface-logo.
To restore the previous behavior, genarate a fake profile
for sample-less dives in fixup_dive(), which is called
anytime a dive is loaded or imported. This seems to
have been the intention anyway and this worked only
"by chance". This will make a few fake_dc() calls obsolete,
but so be it.
Since fake profiles are now generated on loading,
the parse-tests need to be fixed to account for that.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Otherwise we end up with nonsensical values which lead to a division by zero,
which in return leads to different results, depending on platform.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When merging two dives, the higher CNS value was taken. This could
result in inconsistent CNS values if two dives were merged where
one dive's CNS was calculated from a "fake profile", i.e. a dive
without dive-computer profile. In that case, the most conservative
value (all time spent at the bottom) was assumed. The merged dive
then consisted of the dive-computer profile and the conservative
CNS estimate.
This is fixed by setting the CNS value to "0" after merging,
which means "unknown". The correct value will then be recalculated
in "fixup_dive" from the actual sample data.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The data of the membuffer is passed as a data/length pair
to xmlReadMemory(). There is no point in NUL-terminating it.
Moreover, pass the data directly to xmlReadMemory()
instead of via variables. These variables are reused
later with a different meaning, making this super-confusing.
The membuf variable is turned from "const char *" to "char *"
to signal that we own the buffer.
Amazingly, zip_source_buffer() frees the buffer, even though
a "const void *" is passed in. This API is pure madness. Add
a comment.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
There is a function to format QString with C-format strings. Let's
use it instead of doing a detour via membuffer.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Thus, the membuffer data is automatically freed when going
out of scope - one thing less to worry about.
This fixes one use-after-free bug in uploadDiveLogsDE.cpp
and one extremely questionable practice in divetooltipitem.cpp:
The membuffer was a shared instance across all instances
of the DiveToolTipItem.
Remves unnecessary #include directives in files that didn't
even use membuffer.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
C-style memory management is a pain and nearly nobody seems to get
it right. Add a C++-version of membuffer that frees the buffer
when it gets out-of-scope. Originally, I was thinking about
conditionally adding a constructor/destructor pair when compiling
with C++. But then decided to create a derived class membufferpp,
because it would be extremely confusing to have behavioral change
when changing a source from from C to C++ or vice-versa.
Also add a comment about the dangers of returned pointer: They
become dangling on changes to the membuffer.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The sensor-id in the sample struct was a uint8_t, with all
the known problems of unsigned integers. In the rest of the
code cylinder ids are signed integers. To avoid confusion,
make it a signed int. int8_t should be enough (max. 127
cylinders). To allow for degenerate cases, use an int16_t.
16k cylinders should be enough for everyone.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The changes in commit 4daf687876 ("profile: remove [disable|enable]Shortcuts()
signals") resulted in us no longer enabling the shortcuts on the desktop (at
least on macOS where I debugged this). This placement of the call feels like a
bit of overkill, but at least it shouldn't be wrong.
Fixes#3293
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
There were two function-static variables in ToolTipItem::refresh(),
which is a very scary proposition. Curently, there is only
one ToolTipItem, but this may change on mobile, where there
are multiple profiles at the same time.
Remove this timebomb and make the two objects subobjects.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The code will happily perform out-of-bound accesses if
pressure-sensors refer to non-existing cylinders. Therefore,
sanitize these values in fixup_dive(), which is called
everytime a dive is loaded or imported.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
By default, the parser would create samples with cylinder
ids 0 and 1. This creates out-of-bound accesses for the
common one-cylinder (or even no-cylinder) dives. These
were harmless when the cylinder-table was of a fixed size.
Since changing to a dynamic cylinder-table, these became
actual out-of-bound accesses. Don't create such samples
in the parser.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The sensor member of sample refers to a cylinder from which
the pressure was read. However, some dives don't even have
a cylinder. Therefore, introduce a special NO_SENSOR value
for these dives. Since the cylinder is given as a uint8_t,
0xff seems to be a sensible choice.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
When user has selected to show unused cylinders in equipment tab,
respect this setting when exporting to divelogs.de.
Fixes#3277
Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
It appears that this well intended change in commit 52aa7d83b6 ("Increase event
icon size in print mode") actually causes the scaling of the event icons to be
generally wrong. This removes the hard 4* scaling and also adds some debugging
output in verbose mode.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This variable is not used outside a single function, where it
is reset every time the function runs. This can be realized by
a function-local variable just as well.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
We simply don't use release candidates in Subsurface these days, and no one
then moves these builds to stable after testing, so stable has been getting
stale while the builds that people SHOULD use have been sitting in candidate.
Of course, this will only become the default after our next release (as I don't
want four digit versions in a release build, so I can't simply add this to our
snap-stable branch).
Oh well - 5.0.3 will happen soon, given the print resolution issue for icons.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When printing with low DPI, the dive event items become comically
large, because they are not resized like the fonts. Therefore,
scale using the fontPrintScale.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This occurs upon importing dives for example via CSV.
Make sure the profile display is cleared when selecting
such a dive rather than showing a different dive.
Allow editing the profile for such a dive.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
This enum was an artifact from the primordial days of the profile
widget. As far as I can see it was never used.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The ADD state is not used for adding dives since adding dives
was made undoable. Therefore, rename it to EDIT state, since
that is what it is used for.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Clearly, this comment got lost in code reshuffling, as it comments
about ADD and PLAN mode, but is in front of picture declarations.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
