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2018-12-23Cleanup: remove unused parameter was_autogenGravatar Berthold Stoeger
In commit 6bf4120dbbf7be1b9267e0e86f3948b77870ea71 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>
2018-12-17Import: unglobalize downloadTableGravatar Berthold Stoeger
To make data flow more clear, unglobalize the downloadTable object. Make it a subobject of DownloadThread. The difficult part was making this compatible with QML, because somehow the pointer to the download-table has to be passed to the DiveImportedModel. Desktop would simply pass it to the constructor. But with objects generated in QML this is not possible. Instead, pass the table in the repopulate() function. This seems to make sense, but for this to work, we have to declare pointer-to-dive-table as a Q_METATYPE. And this only works if we use a typedef, because MOC removes the "struct" from "struct dive_table". This leads to compilation errors, because dive_table is the symbol-name of the global dive table! Sigh. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-14Cleanup: detangle unregister_dive() and delete_single_dive()Gravatar Berthold Stoeger
These two functions were called in different contexts: - unregister_dive(): from the undo-commands to remove the dive from the global dive table, but not delete it. The dive was already removed from its trip. - delete_single_dive(): from non-undo code. Most of it not in use and removed in a sibling-commit. Here, the dive is supposed to be removed from its trip and a new selection is calculated. delete_single_dive() calls unregister_dive(), which removes the dive from its trip. Move remove_dive_from_trip() from the former to the latter and make both functions independent. Instead of deleting the dive explicitly in delete_single_dive(), call the delete_dive_from_table() function. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-14Core: don't remove dive from trip in add_dive_to_trip()Gravatar Berthold Stoeger
All callers of add_dive_to_trip() work on freshly generated dives, with one exception, that was redundant anyway. Therefore it is not necessary to remove the dive from a potential previous trip. Move the responsibility of removing the dive from a trip to the caller, respectively remove the redundant call. Add a warning message in the case that trip is set. Background: On import (either download or file-import) we might not want to add trips to the global trip-list. For example to enable undo of import but more generally to detangle that data flow. Thus, add_dive_to_trip() should not mingle with the global trip-list, which it has to do if a trip is deleted because the old dive was removed. Analysis of the add_dive_to_trip() callers: 1) core/dive.c pick_trip(): called on freshly generated merged dive. finish_split(): called on two freshly generated split dives. 2) core/divelist.c create_and_hookup_trip_from_dive(): called on freshly downloaded dive in dive_cb(). called on freshly downloaded dive in record_uemis_dive(). autogroup_dives(): called on dive from get_dives_to_autogroup(), which only finds dives that are outside of trips. combine_trips(): unused - removed in sibling commit. try_to_merge_into(): this call was actually erroneous - dive was already added to trip in try_to_merge(). Remove call. 3) core/libdivecomputer.c dive_cb(): called on freshly downloaded dive. 4) core/uemis_downloader.c record_uemis_dive(): called on freshly downloaded dive. 5) core/load_git.c create_new_dive(): called on freshly allocated dive. 6) core/parse.c dive_end(): called on freshly parsed dive. 7) desktop-widgets/command_divelist.cpp DiveListBase::addDive(): called on dive which is newly added to core. moveDiveToTrip(): called on dive that was removed from trip a few lines above. 8) mobile-widgets/qmlmanager.cpp QMLManager::undoDelete(): called on dive where divetrip was reset in the previous line. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-14Cleanup: remove merge_two_dives() functionGravatar Berthold Stoeger
In 014c04f8bd30740e7711f3b3a01619fd27b5b613 merging dives was included in the undo-system. This made the merge_two_dives() function caller-less. Remove it. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-14Cleanup: remove remove_autogen_trips() functionGravatar Berthold Stoeger
In f427226b3b605523bc8285dbdaaa7f6993af6e6a autogrouping / removal of autogrouping was moved into the undo-machinery. This made the remove_autogen_trips() function caller-less. Remove it. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-12-14Cleanup: remove combine_trips() functionGravatar Berthold Stoeger
In f427226b3b605523bc8285dbdaaa7f6993af6e6a 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>
2018-11-23Core: move is-single-day-trip and count-shown functions into coreGravatar Berthold Stoeger
These functionality was used by the desktop filter. To unify desktop and mobile, move it into two new functions in divelist.c Since one of them is the only caller of is_same_day() move that likewise into divelist.c and make it of static linkage. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-22Improve OTU calculationsGravatar willemferguson
Implement the protocol in Erik Baker's document "Oxygen Toxicity Calculations". This code uses a third-order polynomial approximation of Baker's equation 2. Provision is made for PSCR and CCR dive logs and dive plans. In the case of dive logs, the values of o2 sensors are used if there are data from such sensors. For CCR only the data from the first O2 sensor is used even if there are more than one sensor. This is a potential weakness, but this function is probably NOT the place to calculate mean o2 values accross all sensors and to emulate voting logic to reject info from aberrant sensors. Signed-off-by: willemferguson <willemferguson@zoology.up.ac.za> Signed-off-by: Robert C. Helling <helling@atdotde.de>
2018-11-21Core: fix crash concerning removal of dives from tripsGravatar Berthold Stoeger
Commit 6b283e598a3a08c6133d66b5d5617370296e7d0e replaced the linked list of dives in a trip by a table. Embarassingly, on dive deletion the index of the dive in the table was compared for "!= 0" instead of ">= 0". Thus, the first dive of a trip wouldn't be deleted, which ultimately led to a crash, as different parts of the code were now in disagreement over whether the trip is empty or not. Fix the comparison. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-20Core: replace tripflag by notrip booleanGravatar Berthold Stoeger
The only remaining use of the tripflag was to mark dives that were removed explicitly from a trip, i.e. shouldn't be autogrouped. Therefore replace the enum by a simple boolean. Currently, there is no way of unsetting the notrip flag. But this shouldn't result in a user-visible change. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-20Core: remove ASSIGNED_TRIP trip flagGravatar Berthold Stoeger
The distinction between ASSIGNED_TRIP and IN_TRIP was used to prefer non-autogenerated trips on merging of dives. But owing to bit rot this seem to have worked only partially anyway: The IN_TRIP field was set in create_and_hookup_trip_from_dive() and immediately overwritten in add_dive_to_trip() called in the next line. Instead, use the trip->autogen flag to check for priority and remove the ASSIGNED_TRIP flag alltogether. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Core: remove "when" field of struct dive_tripGravatar Berthold Stoeger
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>
2018-11-18Dive list: move sort-functionality into coreGravatar Berthold Stoeger
To make sorting more controlled, move all sorting functions into the core. For this, introduce a "dive_or_trip" structure, which represents a top-level item. Adapt the DiveTripModel accordingly. There are now three sorting functions: 1) dive_less_than 2) trip_less_than 3) dive_or_trip_less_than These should be used by all sorting code. By moving them to a single place, the mess can hopefully be cleaned up. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Dive list: implement trip_less_than functionGravatar Berthold Stoeger
As a step towards proper sorting, introduce a trip_less_than() function in core. It simply sorts by the first dive, which should be unique as dives may belong to only one trip. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-18Dive list: replace dive-list of trips by a tableGravatar Berthold Stoeger
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>
2018-11-18Core: add add_dive_to_table() functionGravatar Berthold Stoeger
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>
2018-11-18Core: unify insert_trip() and insert_trip_dont_merge()Gravatar Berthold Stoeger
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>
2018-11-16Dive list: use dive trip time as additional sort criterionGravatar Berthold Stoeger
The DiveTripModel places dives after trips in chronologically ascending mode if the dive and the trip start at the same instant. But in the core the sort order was undefined. This could lead to a discrepancy. Therefore, implement the same sort-criterion in the core code. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-11-16More accurate CNS calculations (following comments on github)Gravatar willemferguson
Update table of maximum oxygen exposure durations, used in CNS calulations. This table shows the official NOAA maximum O2 exposure limits (in seconds) for different PO2 values. It also gives slope values for linear interpolation for intermediate PO2 values between the tabulated PO2 values in the 1st column. Top & bottom rows are inserted that are not in the NOAA table: (1) For PO2 > 1.6 the same slope value as between 1.5 & 1.6 is used. This exptrapolation for PO2 > 1.6 likely gives an underestimate above 1.6 but is better than the value for PO2=1.6 (45 min). (2) The NOAA table only tabulates values for PO2 >= 0.6. Since O2-uptake occurs down to PO2=0.5, the same slope is used as for 0.7 > PO2 > 0.6. This gives a conservative estimate for 0.6 > PO2 > 0.5. To preserve the integer structure of the table, all slopes are given as slope*10: divide by 10 to get the valid slope. The columns below are: po2 (mbar), Maximum Single Exposure (seconds), single_slope, Maximum 24 hour Exposure (seconds), 24h_slope */ Then update Calculations of the CNS for a single dive - this only takes the first divecomputer into account. The previous version of the code did a table lookup and used the max O2 exposure for the next-higher PO2 category. This gave a shorter max O2 exposure time and a higher CNS contribution for a specific dive segment, resulting in a slightly conservative value of CNS, often some 2 - 3 % too high. This code does an interpolation for PO2 values inbetween PO2 entries in the lookup table and therefore results in a more accurate maximum O2 exposure time for that PO2. The maximum O2 exposure duration for each segment is also calculated based on the mean depth of the two samples (start & end) that define each segment. The CNS contribution of each segment is found by dividing the time duration of the segment by its maximum exposure duration. The contributions of all segments of the dive are summed to get the total CNS% value. This is a partial implementation of the proposals in Erik Baker's document "Oxygen Toxicity Calculations" */ Overall, this PR does not radically alter the existing CNS calculation, it only makes it more accurate and more consistent by doing interpolation and by using mean segment depth to find PO2. Signed-off-by: willemferguson <willemferguson@zoology.up.ac.za>
2018-10-30Fix gasmix for OTU calculationGravatar Robert C. Helling
With the fixed sematics of get_gasmix to return the new gasmix for the time of a gas switch (added comments to make this clear), in the OTU calculation we need the previous gasmix for the interval up to the current time. Signed-off-by: Robert C. Helling <helling@atdotde.de>
2018-10-29Dive site: pass dive-site pointer to delete_dive_site()Gravatar Berthold Stoeger
Instead of passing a uuid, pass a pointer to the dive site. This is small step in an effort to remove uuids. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-25core: add seperate number of dives shown to the trip structureGravatar Dirk Hohndel
We assume that any dive that gets added to a trip initially gets shown. The filter logic then needs to make sure it adjusts this number (which then makes it easy to tell the user how many dives of that trip are visible with the current filter). Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2018-10-23Core: accept NULL-pointer in free_trip() and free_divesite()Gravatar Berthold Stoeger
This is consistent with most other free_*() functions in the core code and will make cleanup of parser state less verbose. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-15Selection: always make newly selected dive the current diveGravatar Berthold Stoeger
In select_dive(), the selected dive would only be made the current dive, if it wasn't previously selected. If multiple dives were selected and the user clicked on one of them which is not the current dive, then the current dive would be deselected and thus not be the current dive anymore. The only remaining dive would not be made the current dive, because it was already selected. End result: null dive shown. Therefore, always make the selected dive the current dive, even if it is already selected. Fixes #1792 Reported-by: Jan Mulder <jlmulder@xs4all.nl> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-15Dive import: reset current_dive in process_imported_dives()Gravatar Berthold Stoeger
process_imported_dives() might delete the currently selected dives. This could lead to use-after-free problems. Therefore, reset the currently selected dive to the last dive. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-15Dive import: remove dive-to-be added from trip before deletionGravatar Berthold Stoeger
On dive import, dives to be added may be merged into already existing dives. In such a case, the dive to be added is deleted. Before doing so, it must be removed from the trip is belongs to to avoid corruption of the trip-list. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-14Cleanup: constify get_dive_gas() and get_dive_gas_string()Gravatar Berthold Stoeger
There's no reason for the dive input-parameter being non-const. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-14Cleanup: free all data in clear_table()Gravatar Berthold Stoeger
Instead of calling free() on all dives, call free_dive() which also frees additional allocated data, not only the dive struct. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-14Cleanup: move clear_table() to divesite.cGravatar Berthold Stoeger
There were two declaration of clear_table(), one in dive.h and one in parse.h. The definition was in parse.c. Since the parser doesn't even use the function, move the function and its declaration to divelist.[ch] and remove the redundant declaration in dive.h. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-14Cleanup: remove rebasing artefactsGravatar Berthold Stoeger
Embarrassingly, the header-comment in divelist.c contained a rebasing artefact. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-14Autogroup only when selectedGravatar Jan Mulder
Comits f427226b3b and 43c3885249f of the undo series introduced 2 calls of autogroup_dives() without checking the autogroup global boolean. This is a bug. An import from DC (for example) then triggers an autogrouping, the divelist is autogrouped, and the UI button is off. This commit solves this. I've chosen for a guard in the autogroup_dives() that now is a no-op when called when the user did not select autogrouping. In additon, simplified the other calls to this function, as we do not need to check before calling any more. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
2018-10-13Dive site: explicitly init displayed_dive_site on show widgetGravatar Berthold Stoeger
The global object "displayed_dive_site" is used to store the old dive site data for the edit-dive-site widget. The fields of the widget were initialized from this object in the show event. Therefore the object was updated in numerous parts of the code to make sure that it was up-to-date. Instead, move the initialization of the object to the function that also initiatlizes the fields. Call this function explicitly before showing the widget. This makes the data-fow distinctly easier to understand. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Dive list: unify sorting in core and Qt-modelGravatar Berthold Stoeger
Ultimately, we want to use a single dive-list and not replicate it in the Qt-model code. To this goal, let's start with using the same sort function. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: select dives after add, remove, merge, split dive commandsGravatar Berthold Stoeger
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>
2018-10-11Dive list: remember selected divesGravatar Berthold Stoeger
Don't delesect dives, when unregistering them from the backend. If a previously selected dive is added, select it in the dive-list. For this purpose introduce a SELECTED_ROLE to query the DiveTripModel for selected dives. Unfortunately, when adding multiple selected dives, current_dive_changed is called for each of them, making this very slow. This will have to be fixed in subsequent commits. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: implement autogrouping of trips in DiveAddGravatar Berthold Stoeger
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>
2018-10-11Core: introduce insert_trip_dont_merge() functionGravatar Berthold Stoeger
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>
2018-10-11Undo: make diverse trip-related operations undo-ableGravatar Berthold Stoeger
AddDivesToTrip, CreateTrip, AutogroupDives, RemoveAutogenTrips and MergeTrips basically all did the same thing as RemoveDivesFromTrip, which was already implemented. Thus, factor our the common functionality and hook it up to make all these functions undo-able. Don't do the autogroup-call everytime the dive-list is rebuilt (that would create innumberable undo-actions), but only on dive-load / import or if expressly asked by the user [by switching the autogroup flag]. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: implement rudimentary support for undo of dive-mergingGravatar Berthold Stoeger
For this, an output-parameter was added to the backend merge_dives() function. When non-zero, instead of adding the merged dive to the preferred trip, the preferred trip is returned to the caller. Since the new UndoObject, just like the delete-dives UndoObject, needs to remove/readd a set of dives, the corresponding functionality was split-off in a helper function. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11Undo: implement undo of manual dive-creationGravatar Berthold Stoeger
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>
2018-10-11Undo: fix multi-level undo of delete-dive and remove-dive-from-tripGravatar Berthold Stoeger
The original undo-code was fundamentally broken. Not only did it leak resources (copied trips were never freed), it also kept references to trips or dives that could be changed by other commands. Thus, anything more than a single undo could lead to crashes. Two ways of fixing this were considered 1) Don't store pointers, but unique dive-ids and trip-ids. Whereas such unique ids exist for dives, they would have to be implemented for trips. 2) Don't free objects in the backend. Instead, take ownership of deleted objects in the undo-object. Thus, all references in previous undo-objects are guaranteed to still exist (unless the objects are deleted elsewhere). After some contemplation, the second method was chosen, because it is significantly less intrusive. While touching the undo-objects, clearly separate backend from ui-code, such that they can ultimately be reused for mobile. Note that if other parts of the code delete dives, crashes can still be provoked. Notable examples are split/merge dives. These will have to be fixed later. Nevertheless, the new code is a significant improvement over the old state. While touching the code, implement proper translation string based on Qt's plural-feature (using %n). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-08Fix warning about unused variablesGravatar Linus Torvalds
Commit 810903bdb9db ("Import: pass a dive table to process_imported_dives()") introduced the variables struct dive *old_dive, *merged; into process_imported_dives(), but never used them. It seems to be an artifact of having split the function to use the try_to_merge_into() helper function (that has those same variable names and _does_ use them), but forgetting the original variables from the pre-split case. Gcc understandably warns about it: core/divelist.c: In function ‘process_imported_dives’: core/divelist.c:1351:26: warning: unused variable ‘merged’ [-Wunused-variable] struct dive *old_dive, *merged; ^~~~~~ core/divelist.c:1351:15: warning: unused variable ‘old_dive’ [-Wunused-variable] struct dive *old_dive, *merged; ^~~~~~~~ and the trivial fix is to just remove that line that declares the stale and unused variables. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-06Import: pass "downloaded" parameter to process_imported_dives()Gravatar Berthold Stoeger
process_imported_dives() is more efficient for downloaded than for imported (from a file) dives, because it checks only the divecomputer of the first dive. This condition is checked via the "downloaded" flag of the first dive. Instead, pass an argument to process_imported_dives(). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-06Import: remove dive->downloaded logicGravatar Berthold Stoeger
Dive importing is now performed via a distinct table which is merged into the main dive table. Thus, it is known which of the dive is new and which is old. This information can now be implicitely encoded in the parameter-position of merge_dive() [i.e. pass old as first and new as second dive]. This makes marking of downloaded dives via a flag unnecessary. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-06Import: pass a dive table to process_imported_dives()Gravatar Berthold Stoeger
Dives were directly imported into the global dive table and then merged in process_imported_dives(). Make this interface more flexible, by passing an independent dive table. The dive table of the to-be-imported dives will be sorted and merged. Then each dive is inserted in a one-by-one manner to into the global dive table. This actually introduces (at least) two functional changes: 1) If a new dive spans two old dives, it will only be merged to the first dive. But this seems like a pathological case, which is of dubious value anyway. 2) Dives unrelated to the import will not be merged. The old code would happily merge dives that were not even close to the newly imported dives. A surprising behavior. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-07Dive information: fix surface interval calculationGravatar Berthold Stoeger
The old surface interval calculation had fundamental issues: 1) process_all_dives(), which calculates the statistics over *all* dives was used to get the pointer to the previous dive. 2) If two dives in the table had the same time, one of those would have been considered the "previous" dive. 3) If the dive, for which the surface interval is calculated is not yet in the table, no previous dive would be determined. Fix all this by creating a get_surface_interval() function and removing the "get previous dive" functionality of process_all_dives(). Remove the process_all_dives() call from TabDiveInformation::updateData(). Reported-by: Jan Mulder <jlmulder@xs4all.nl> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-09-29Cleanup: split out free_dive() function from delete_single_dive()Gravatar Berthold Stoeger
Currently, we can only delete dives that are indexed in the main dive table. In the future, we will have to delete dives outside of this table (e.g. for undo). Therefore, split out the free_dive() function from delete_single_dive(), which takes an index into the main dive table. In the process, adopt the dive freeing-code from clear_dive(), which frees more data than the code in delete_single_dive(). This potentially fixes a memory-leak. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-09-23Core: split process_dives() in post-import and post-load versionsGravatar Berthold Stoeger
process_dives() is used to post-process the dive table after loading or importing. The first parameter states whether this was after load or import. Especially in the light of undo, load and import are fundamentally different things. Notably, that latter should be undo-able, whereas the former is not. Therefore, as a first step to make import undo-able, split the function in two versions and remove the first parameter. It turns out the the load-version is very light. It only sets the DC nicknames and sorts the dive-table. There seems to be no reason to merge dives. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-09-10Profile: fix SAC calculation for air divesGravatar Berthold Stoeger
Commit f5b11daffd6f240268ce78d72c64be43670988ea changed gasmix arguments and return values to be passed by value instead of using pointers. Notably, get_gasmix() is fed a default-value and returns a new value. In the old code, NULL was passed in in a first loop iteration and non-NULL was always returned in the first iteration. Thus, an equality comparison of passed-in an returned gasmix would always fail in the first loop iteration. The new code passed in air as default. Now if air was also returned, then the matching gases were not calculated in calculate_sac(). To revert to the old behavior, pass in an invalid gasmix. Moreover, give names to the invalid and air gasmixes. Reported-by: tormento <turment@gmail.com> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>