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 cylinderList() function collects all cylinder descriptions.
Instead of adding all cylinders, then sort, then removed duplicates,
keep a sorted list and only add non-existing elements. Find
existing elements by a binary search.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
In getFormattedWeight() and getFormattedCylinder(), the indexes
were passed as unsigned ints. This makes no sense as the only
callers were using signed ints. Change the parameters to signed.
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>
We'll use them from the model in order to avoid creating this many
DiveObjectHelpers when showing a dive.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This is disabled by default - but when compiled in it makes it a lot
easier to pinpoint why we are creating so many DiveObjectHelpers.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
The cylindersObject list was only used by grantlee but not by
the mobile code. Since it is quite heavy, split it out and thus
don't generate it for every dive on mobile.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of handing a reference-to-dive to QML, prerender all the needed
properties and store them as values in DiveObjectHelper. Exception:
- date(): generated from timestamp
- time(): generated from timestamp
- cylinderList(): does not depend on dive anyway and should be made
static.
This hopefully avoids the random mobile crashes that we are seeing.
Clearly, this code needs to be optimized, but it is a start.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
These were temporary functions as long as DiveObjectHelpers were
used to access dives. All users now access the core directly and
therefore don't have to test DiveObjectHelpers for validity.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Don't provide access to the raw dive in DiveObjectHelper. All users
now access the core directly. This is a step in making DiveObjectHelper
value-based.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of keeping track of a list of DiveObjectHelpers, generate
them on-the-fly in DiveListModel. Thus, there is less danger of
model and core getting out of sync. On the flip-side, now the
DiveListModel and the DiveListSortModel might get out of sync.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
DiveObjectHelper is a tiny wrapper around dive * to allow access
to dive data from QML and grantlee. It doesn't have to be a
full-fledged QObject with support for signals, etc. Therefore,
turn it into a Q_GADGET based object. This allows us passing the
object around as object, not as pointer to DiveObjectHelper.
This makes memory-management distinctly easier.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
We don't want to generate a DiveObjectHelper numerous times for
every item in the dive list. Therefore, return this datum directly
from the model.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The canonical way of displaying lists in Qt is via models.
Thus, return the tripId directly from the DiveListModel instead
of going indirectly via a DiveObjectHelper. In the future, this
will allow us to make the DiveObjectHelper value-based, as it
is not generated numerous times for every list item.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
These properties are not needed anymore, because the full text search
was decoupled from the DiveObjectHelper.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of generating cylinder data in the form of
CylinderObjectHelper objects for every DiveObjectHelper,
generate it only if needed. DiveObjectHelper is used extensively
in the mobile interface, which doesn't use the cylinder data.
Let's not generate unnecessary CylinderObjectHelpers in this
case!
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
CylinderObjectHelper is used for structured formatting of cylinder
values in grantlee types. Instead of keeping a reference to a
cylinder, turn it into a value type containing the formatted strings.
This should be distinctly safer, as we don't risk having stale
references flying around. Moreover, we don't have to use pointers
but can use containers containing plain CylinderObjectHelper. Thus,
no explicit memory management is needed, making the code distinctly
easier to understand.
Sadly, currently grantlee does not support Q_GADGET based Q_PROPERTY.
Therefore a GRANTLEE_*_LOOKUP block has to be added. This can be
removed in due course, as a patch to remedy this issue is in current
grantlee master.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
When removing the max-weightsystem restriction, the semantics of
the DiveObjectHelper::singleWeightSystem() function changed:
it now returned false for "no weightsystem". Change it back,
to 0 or 1 weightsystems, because the mobile frontend uses this
to check whether it can edit dive systems.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Replace the fixed-size weightsystem table by a dynamically
relocated table. Reuse the table-macros used in other parts
of the code.
The table stores weightsystem entries, not pointers to
weightsystems. Thus, ownership of the description string is
taken when adding a weightsystem. An extra function adds
a cloned weightsystem at the end of the table.
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>
Add a dive site table to each dive site to keep track of dives
that have been added to a dive site. Add two functions to add
dives to / remove dives from dive sites.
Since dive sites now contain a dive table, the order of includes
had to be changed: "divesite.h" now includes "dive.h" and not
vice-versa. This caused some include churn.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
printGPSCoords() returned a newly allocated C-style string. Most
callers simply made a QString out of it and freed the C-style string.
This is paradoxical, as printGPSCoords internally works with QStrings
and converts them to C-style on return.
Therefore, let printGPSCoords() return a QString and create a
printGPSCoordsC() wrapper for the two C-callers.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The printGPSCoords() function returns a copied C-style string. Since
the owndership is transferred to the caller, the correct return type
is "char *" instead of "const char *".
Thus a number of casts when calling free can be removed.
Moreover a number of callers didn't free the string and thus were
leaking memory. Fix them. Ultimately we might want two versions
of the function: one for QString, one for C-style strings.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
EMPTY_DIVE_STRING used to be a string-literal representing missing
information ("--"). In 6985c123d4 it
was replaced by the actual empty string. Using a literal to represent
the empty string seems a bit pointless, therefore remove it completely.
Notably:
QString(EMPTY_DIVE_STRING) -> QString()
if (temp.isEmpty()) temp = EMPTY_DIVE_STRING; -> noop
if (s == EMPTY_DIVE_STRING) -> if (s.isEmpty())
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
QML's ListView uses the "section" property to test if items belong to the
same section. Apparently, this must be a string and therefore we can't
pass e.g. a dive-trip object. Therefore a specially formatted string
was passed in, which was guaranteed to be unique (contained the dive-trip
pointer value) and the fully formatted trip-title and short-date.
The disadvantage of that approach is that the formatting is performed for
every dive and not every trip. Perhaps not a problem now, but it makes
it for example necessary to cache the number of filtered dives.
To be more flexible, pass in only the pointer value formatted as
hexadecimal string and provide a function to convert that string
back to a trip-pointer (in the form of a QVariant, so that it can
be passed to QML). Moreover provide two functions for formatting the
title and the short-date.
The three new functions are members of DiveListSortModel. This might not
be the perfect place, but it is easy to reach from the DiveListView.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The DiveObjectHelper::trip() function was
1) Misnamed: it returned the *location* of the trip
2) Not used outside of DiveObjectHelper
Remove it.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The when field gives the time of the first dive. Instead of keeping
this field in sync, replace it by a function that determines the time
of the first dive.
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>
There was a stray semi-colon on the beginning of a line in
DiveObjectHelper.cpp. Remove it.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Now that struct dive_site * is a proper Q_METATYPE it is not
necessary anymore to pass dive-sites as opaque uintptr_t types.
Simply pass a QVariants or directly via dive_site *.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Replace the UUID reference of struct dive by a pointer to dive_site.
This commit is rather large in lines, but nevertheless quite simple
since most of the UUID->pointer work was done in previous commits.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
MapWidgetHelper::reloadMapLocations() used an array of uuids to
add dive sites to the map only once. Replace this by an array
of pointers. This is a small piece of a larger effort to remove
dive site UUIDs.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Replace UUIDs by pointers to dive-site in mobile code. In both
cases, the value is transported via a QVariant. The function
getCoordinatesForUUID(), which was only used from mobile, can
be replaced by a getCoordinatesFor() function taking a variant
supposed to contain a dive-site pointer. Likewise, the variant
of the centerOnDiveSite function is now supposed to wrap a
pointer-to-divesite.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
When creating a trip header (as it is used in the mobile app right now), we need
to show the number of dives shown, not the total number of dives in that trip.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This feels a bit like cheating, but if we need to be able to make modifications
to the underlying dive and only have the helper object (for example inside of a
view model), doing everything through the helper object can turn into a real
performance issue.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Otherwise we could match the end of one string and the beginning of the next,
so having a buddy name Linus and a dive master named Alvin would be matched
by USA.
Also add Notes to the full text search (I had forgotten those earlier).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Instead of having people treat latitude and longitude as separate
things, just add a 'location_t' data structure that contains both.
Almost all cases want to always act on them together.
This is really just prep-work for adding a few more locations that we
track: I want to add a entry/exit location to each dive (independent of
the dive site) because of how the Garmin Descent gives us the
information (and hopefully, some day, other dive computers too).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In a previous commit, the get_gasmix_* functions were changed to
return by value. For consistency, also pass gasmix by value.
Note that on common 64-bit platforms struct gasmix is the size
of a pointer [2 * 32 bit vs. 64 bit] and therefore uses the
same space on the stack. On 32-bit platforms, the stack use
is probably doubled, but in return a dereference is avoided.
Supporting arbitrary gas-mixes (H2, Ar, ...) will be such an
invasive change that going back to pointers is probably the
least of our worries.
This commit is a step in const-ifying input parameters (passing
by value is the ultimate way of signaling that the input parameter
will not be changed [unless there are references to said parameter]).
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
