Don't offer to add a gas change if there is ony one gas

In the context menu of the profile it makes no sense to offer the ability
to switch gases unless there is a gas to switch to.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Profile: keep the plotInfo in the corresponding member variable

We had the variable. As a pointer. Which we used memset to clear. Ouch -
that smells like some bad cut and paste.

With this change the object keeps the corresponding plotInfo around (just
like some others do) and can use it later. I suspect this code could use
some larger cleanup, but it's a bit too late for this in the development
cycle, I guess. I'm sure I'll regret this in the future...

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Profile: add helper function to get the sample entry for a mouse position

This seems quite useful to have.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Profile: don't offer to switch to an already active tank

Adding a gas change to tank that we are already breathing from makes no
sense, so let's not offer this.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Profile: adjust tank pressures at gas change (incomplete)

This code sets up the UI that will allow the user to adjust tank pressures
at a gaschange event. The actual changing of the pressure is not
implemented, yet, so this is disabled until someone finds time to do so.

The scenario is this: a tec diver or sidemount diver without pressure
sensors on at least one of their tanks still wants to reasonably
accurately track gas consumption during a dive. The diver takes notes of
the pressures at every tank switch (I find that odd, but apparently some
cave divers indeed do that as they switch back and forth between different
gases) and then wants to adjust the pressures in Subsurface to match those
written down.

One difficulty here is that the first and last pressure of a tank with no
sensor data is still considered "sensor pressure" - this is basically an
implementation detail in the code that is used to do the pressure
interpolation to have constant-SAC pressure plots for tanks without
sensors. So when we check if there is indeed no pressure data available at
the gas change, we can't just work with the interpolated pressure - if
this is the first (or last) time the tank was used, that pressure may be
marked as sensor pressure.

What's missing is the UI to enter the desired new pressure plus the black
magic that actually inserts this into the dive in a way that doesn't break
the assumptions in the rest of the code. I'm running out of time to do
that but wanted to preserve this code so someone can continue this later.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Import NDL from Poseidon MKVI logs

This is based on the great work done by Søren Reinke's on his MKVI Logfile
Analyzer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Add support for importing CEILING from MKVI logs

This is based on the great work done by Søren Reinke's on his MKVI Logfile
Analyzer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Create events from mouthpiece position

This is based on the great work done by Søren Reinke's on his MKVI Logfile
Analyzer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Create gaschange events from Poseidon MkVI logs

This is based on the great work done by Søren Reinke's on his MKVI Logfile
Analyzer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Create more events from Poseidon MkVI logs

This is based on the great work done by Søren Reinke's on his MKVI Logfile
Analyzer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Document more about fields in Poseidon MkVI logs

This is based on the great work done by Søren Reinke's on his MKVI Logfile
Analyzer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Change the OSTC3 macros to have a ; in the end

This changes the OSTC3 READ_SETTING/WRITE_SETTING macros into something
that can have a ; in the end which makes some editors auto-indent it better.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fix warnings in debug_print_profiledata

Use the right format, now when those variables are integers and not
doubles.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>