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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>
2018-08-23Cleanup: const-ify functions taking dives and divecomputersGravatar Berthold Stoeger
Another small step in making things const-clean. See also commit 605e1e19ed0c52a16580c95e36ae79e71b539351. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-23Cleanup: const-ify functions taking pointers to eventsGravatar Berthold Stoeger
This is another entry in the series to make more things "const-clean" with the ultimate goal of merge_dive() take const pointers. This concerns functions taking pointers to events and the fallout from making these const. The somewhat debatable part of this commit might be that get_next_event() is split in a two distinct (const and non-const) versions with different names, since C doesn't allow overloading. The linker should recognize that these functions are identical and remove one of them. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-23Cleanup: pass gasmix by valueGravatar Berthold Stoeger
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>
2018-08-23Cleanup: unify get_gas_at_time() and get_gasmix()Gravatar Berthold Stoeger
There were two functions for getting gas-mixes at a certain timestamp: - get_gasmix() for repeated queries. - get_gas_at_time() for a single query. Since the latter is a special case of the former, simply call the former in the latter. Moreover, rename to get_gasmix_at_time() for consistency. Replace on get_gasmix() call, which was outside of a loop by the corresponding get_gasmix_at_time() call. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-23Cleanup: return gasmix by valueGravatar Berthold Stoeger
Currently, get_gasmix_from_event() and get_gasmix() return pointers to either static or to (possibly changing) dive data. This seems like a dangerous practice and the returned data should be used immediately. Instead, return the gasmix by value. This is in preparation of const-ifying input parameters of a number of core functions, which will ultimately let the merge() function take const-arguments in preparation of undo of dive-merging. On common 64-bit systems gasmix (two "int"s) is the size of a pointer and can be returned in a register. On 32-bit systems a pointer to the struct to be filled out will be passed. Since get_gasmix() now returns a value, the first invocation is tested by a NULL-initialized "struct event *". Document this in a comment. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-08-02Cleanup: move sort_table() from subsurface_startup.c to divelist.cGravatar Berthold Stoeger
The function is not only used at startup and arguably belongs the the file with the rest of the low-level divelist functions. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-07-19Undo: remember deleted trip in UndoRemoveDivesFromTrip::undo()Gravatar Berthold Stoeger
If the last dive of a trip is removed, the trip is deleted. On redo the dive is added to a non existing trip, leading to a segfault. Therefore, keep a copy of the trip to reinstate it on redo. Note: this cannot work for a sequence of multiple commands. One would have to rewrite the whole undo-history. Nevertheless, let's do this as a stop-gap measure. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-07-18Cleanup: removed unused functions in divelist.hGravatar Berthold Stoeger
find_trip_by_idx() and find_matching_trip() weren't used anywhere. The trip index actually is only misused as a "trip saved"-flag. trip_has_selected_dives() only existed as a comment. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-28Don't compute SAC if total gas use is unknownGravatar Robert C. Helling
If we breathe from a cylinder with invalid start or end pressures, we cannot reliably compute the total gas use and thus the SAC. So we should not pretend to do so. A better fix would compute the total SAC for only those segements that have valid start and end pressures. Reported-by: Stefan Fuchs <sfuchs@gmx.de> Signed-off-by: Robert C. Helling <helling@atdotde.de>
2018-05-14Rename enum dive_comp_type to divemode_tGravatar Robert C. Helling
...as the usuage is not anymore about a computer but a momentary dive mode. Rename the end indicator as well. Signed-off-by: Robert C. Helling <helling@atdotde.de>
2018-05-14Implement get_divemode() to find the divemode at a particular timeGravatar Willem Ferguson
Replaced a rather cumbersome function that that did the above. Upon the suggestion of Robert Helling who proposed a much shorter way, this new function replaced the previous ones. This necessitated changes to divelist.c, profile.c and plannernotes.c, as well as dive.c/h. Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
2018-05-14Simplify the bailout detection functions.Gravatar Willem Ferguson
Function peek_next_divemodechange() is redundant if get_next_divemodechange() has one additional parameter. Calls to get_next_divemodechange() were updated in divelist.c, plannernotes.c and profile.c. Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
2018-05-14Implement bailout outside of the dive plannerGravatar Willem Ferguson
This is the second step for implementing bailout. The indirect calls to fill_pressures through add_segment() (in deco.c) are addressed. Bailout is now fully implemented in the dive log but not in the dive planner. 1) The parameters to add_segment() are changed to take a divemode as the second last parameter, and not a *dive. 2) Call to add_segment() in profile.c and in divelist.c are adapted. In divelist.c some calls to add_segment were left using dc-> divemode instead of possible bailout. This appears tp be the most appropriate route. 3) The functions get_divemode_from_time() and get_next_divemodechange() in dive.c have had some small changes. 4) The calls to get_segment(0 in planner.c were changed to reflect the new parameter list, but not updated to reflect bailout. This is the next step. Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
2018-05-14Small whitespace cleanupGravatar Dirk Hohndel
Stumbled across this when Qt Creator re-saved the file. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2018-05-14Core: introduce new subsurface-string headerGravatar Dirk Hohndel
First small step to shrinking dive.h. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2018-02-26Cleanup: Unify qthelper.h and qthelperfromc.hGravatar Berthold Stoeger
Since all qt-helpers are defined in qthelper.cpp, there seems to be no reason to have two include files. By unifying the two files, duplication and inconsistencies are removed. The C++-only part is simply compiled away with #ifdefs. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-02-12dump_tissues: fix missing 'struct deco_state' argumentGravatar Lubomir I. Ivanov
With DECO_CALC_DEBUG != 0, divelist.c and profile.c have calls to dump_tissues() without passing a 'struct deco_state' argument. Fixes #1105 Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
2018-01-11Introduce helper function empty_string()Gravatar Berthold Stoeger
There are ca. 50 constructs of the kind same_string(s, "") to test for empty or null strings. Replace them by the new helper function empty_string(). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-01-10Unused code: remove trip_has_selected_dives()Gravatar Jan Mulder
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
2018-01-08Move resetting of current file out of clear_dive_file_data()Gravatar Berthold Stoeger
This is the only case where C-code sets the current file. Remove this call for a better separation of C-backend and C++-frontend parts. There were four callers of clear_dive_file_data(). Two of them would call set_filename() anyway. For the remaining two add an explicit call to set_filename(). This commit fixes a bug introduced in commit b3901aa8f90499ee2a34efdddc2463105afc53f1: The cloud-online menu entry was still enabled after "closing" the cloud storage. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>