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2013-01-08Rewrite of the deco codeGravatar Robert C. Helling
o) Instead of using gradient factors as means of comparison, I now use pressure (as in: maximal ambient pressure). o) tissue_tolerance_calc() now computes the maximal ambient pressure now respecting gradient factors. For this, it needs to know about the surface pressure (as refernce for GF_high), thus gets *dive as an argument. It is called from add_segment() which this also needs *dive as an additional argument. o) This implies deco_allowed_depth is now mainly a ambient-pressure to depth conversion with decorations to avoid negative depth (i.e. no deco obliation), implementation of quantization (!smooth => multiples of 3m) and explicit setting of last deco depth (e.g. 6m for O2 deco). o) gf_low_pressure_this_dive (slight change of name), the max depth in pressure units is updated in add_segment. I set the minimal value in buehlmann_config to the equivalent of 20m as otherwise good values of GF_low add a lot of deco to shallow dives which do not need deep stops in the first place. o) The bogus loop is gone as well as actual_gradient_limit() and gradient_factor_calculation() and large parts of deco_allowed_depth() although I did not delete the code but put it in comments. o) The meat is in the formula in lines 147-154 of deco.c. Here is the rationale: Without gradient factors, the M-value (i.e the maximal tissue pressure) at a given depth is given by ambient_pressure / buehlmann_b + a. According to "Clearing Up The Confusion About "Deep Stops" by Erik C. Baker (as found via google) the effect of the gradient factors is no replace this by a reduced affine relation (i.e. another line) such that at the surface the difference between M-value and ambient pressure is reduced by a factor GF_high and at the maximal depth by a factor GF_low. That is, we are looking for parameters alpha and beta such that alpha surface + beta = surface + gf_high * (surface/b + a - surface) and alpha max_p + beta = max_p + gf_low * (max_p/b + a - max_p) This can be solved for alpha and beta and then inverted to obtain the max ambient pressure given tissue loadings. The result is the above mentioned formula. Signed-off-by: Robert C. Helling <helling@atdotde.de> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-07Improve dive trip sort comparison functionGravatar Linus Torvalds
We do want to compare "loose" dives too, but we need to be a bit careful, and always use the trip date as the primary sort key for any dives that are not in the same trip. Reported-and-tested-by: Miika Turkia <miika.turkia@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-06Display dive profile of the dive we plan, as we plan itGravatar Dirk Hohndel
As the user enters data into the entry fields, that data is validated and as soon as there is enough data we start constructing a dive profile, including the final ascent to the surface, including required deco stops, etc. This commit still has some serious issues. - when data is input that doesn't validate, we just print a warning to stdout - instead we need to change the backgroundcolor of the input field or something. - when we switch to the last dive in order to show the profile we don't actually search for the last dive - we just show the first one in the tree. This works for the default sort order but is of course wrong otherwise I'm sure there are many other bugs, but I want to push it out where it is right now for others to be able to take a look. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-04First stab at simplistic dive planningGravatar Dirk Hohndel
This comes with absolutely no gui - so the plan literally needs to be compiled into Subsurface. Not exactly a feature, but this allowed me to focus on the planning part instead of spending time on tedious UI work. A new menu "Planner" with entry "Test Planner" calls into the hard-coded function in planner.c. There a simple dive plan can be constructed with calls to plan_add_segment(&diveplan, duration, depth at the end, fO2, pO2) Calling plan(&diveplan) does the deco calculations and creates deco stops that keep us below the ceiling (with the GFlow/high values currently configured). The stop levels used are defined at the top of planner.c in the stoplevels array - there is no need to do the traditional multiples of 3m or anything like that. The dive including the ascents and deco stops all the way to the surface is completed and then added as simulated dive to the end of the divelist (I guess we could automatically select it later) and can be viewed. This is crude but shows the direction we can go with this. Envision a nice UI that allows you to simply enter the segments and pick the desired stops. What is missing is the ability to give the algorithm additional gases that it can use during the deco phase - right now it simply keeps using the last gas used in the diveplan. All that said, there are clear bugs here - and sadly they seem to be in the deco calculations, as with the example given the ceiling that is calculated makes no sense. When displayed in smooth mode it has very strange jumps up and down that I wouldn't expect. For example with GF 35/75 (the default) the deco ceiling when looking at the simulated dive jumps from 16m back up to 13m around 14:10 into the dive. That seems very odd. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-04Clean up DEBUG codeGravatar Dirk Hohndel
It's still a mess (and the symbols aren't used consistently), but it's a tiny bit more logical... Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-04Fix deco calculations to correctly use GF values and add CC supportGravatar Dirk Hohndel
The old implementation was broken in several ways. For one thing the GF values are percentages, so they should normally be 0 < GF < 1 (well, some crazy people like to go above that). With this most of the Bühlmann config constants were wrong. Furthermore, after we adjust the pressure tolerance based on the gradient factors, we need to convert this back into a depth (instead of passing back the unmodified depth - oops). Finally, this commit adds closed circuit support to the deco calculations. Major progress and much more useful at this stage. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-03Merge branch 'deco2'Gravatar Dirk Hohndel
Bringing in the first attempts to do our own deco calculations
2013-01-03Improvements to select_prev_dive() and select_next_dive()Gravatar Lubomir I. Ivanov
There were some minor problems when moving the selection cursor around: 1) If the selection was larger than 1, it was possible for the selection to get "stuck" in the middle of the list. This patch approaches this by always calling gtk_tree_selection_unselect_all() before gtk_tree_selection_select_iter(), or simply always making sure we have one selected iterator when navigating with the keys. 2) When there was a single top level dive before the first trip it wasn't possible to navigate trough the child dives of said trip in both directions. The patch attempts to fix this by having the hunks/checks: if (idx < 0) { (idx is of a trip) performed regardless of other conditions. *** Note: testing was done by importing all test*.xml dives with auto-group on. [Dirk Hohndel: adjusted the patch to also fix on_key_press to only grab the key if no modifier key is pressed; otherwise this breaks shift-cursor-keys for selecting multiple dives.] Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-03Consider previous dives when calculating decoGravatar Dirk Hohndel
This also initializes the N2 tissue saturations to correct numbers (setting them to zero was clearly silly). With this commit we walk back in the dive_table until we find a surface intervall that's longer than 48h. Or a dive that comes after the last one we looked at; that would indicate that this is a divelist that contains dives from multiple divers or dives that for other reasons are not ordered. In a sane environment one would assume that the dives that need to be taken into account when doing deco calculations are organized as one trip in the XML file and so this logic should work. One major downside of the current implementation is that we recalculate everything whenever the plot_info is recreated - which happens quite frequently, for example when resizing the window or even when we go into loup mode. While this isn't all that compute intensive, this is an utter waste and we should at least cache the saturation inherited from previous dives (and clear that number when the selected dive changes). We don't want to cache all of it as the recreation of the plot_info may be triggered by the user changing equipment (and most importantly, gasmix) information. In that case the deco data for this dive does indeed have to be recreated. But without changing the current dive the saturation after the last surface intervall should stay the same. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-02Limit to 4 the number of cylinders shown in the data frameGravatar Salvador Cuñat
For dives with more than 4 cylinders, the frame got very crowded and we needed a magnifier to see the numbers. If we used more than four tanks, let's put the info in another frame, if not, print the OTUs, the maxcns and the weight sytem in the new frame. There is still room for two more short data. Changed naming of nitrox and trimix mixes. Changed cylinder description. There are issues with the size of some translations. Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-02Fix mixed dive/trip tree model groupingGravatar Linus Torvalds
In commit 96db56f89c76 ("Allow overlapping (and disjoint) dive trips") I allowed dives to be part of arbitrary dive trips regardless of date, which meant that the divelist tree model code needed to find the right parent for a dive as it was inserted. That code stupidly assumed that the top level of the dive list tree containted *only* trips, which is not at all the case. It happens to be true if you group all your dives into divetrips (the common case for autogroup=1, which real users do tend to have), but now that Dirk made the autogrouping be a per-xml-file setting, it became much easier to trigger the "mixed trips and non-trip dives" case, and that showed the stupid bug with the test dives. So instead of just blindly iterating to the 'n'th entry, search for the actual entry that is the dive trip we want to associate a dive with. Reported-by: Lubomir Ivanov <neolit123@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-01Keep the selected dive visible in the divelistGravatar Linus Torvalds
This patch makes the divelist behave more as you would expect it as you scroll up and down through its entries. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-01-01First step towards grabbing keys and handling them ourselvesGravatar Dirk Hohndel
This commit steals the cursor up and down keys away from gtk so regardless where gtk thinks the focus may be, we can still use the keys to change between dives. In the current UI design where all editing happens in separate windows this works as expected, as we only grab the keys for the main window. If we manage to re-enable in-place editing then we need to make sure that this doesn't cause problems (as gtk uses up/down for the ability to change drop down selections in combo boxes or values in spin buttons. So we must make sure that we stop stealing these keys once we start editing something (in which case simply switching to the next/prev dive wouldn't be a good thing, anyway). Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-30First step in cleaning up cylinder pressure sensor logicGravatar Linus Torvalds
This clarifies/changes the meaning of our "cylinderindex" entry in our samples. It has been rather confused, because different dive computers have done things differently, and the naming really hasn't helped. There are two totally different - and independent - cylinder "indexes": - the pressure sensor index, which indicates which cylinder the sensor data is from. - the "active cylinder" index, which indicates which cylinder we actually breathe from. These two values really are totally independent, and have nothing what-so-ever to do with each other. The sensor index may well be fixed: many dive computers only support a single pressure sensor (whether wireless or wired), and the sensor index is thus always zero. Other dive computers may support multiple pressure sensors, and the gas switch event may - or may not - indicate that the sensor changed too. A dive computer might give the sensor data for *all* cylinders it can read, regardless of which one is the one we're actively breathing. In fact, some dive computers might give sensor data for not just *your* cylinder, but your buddies. This patch renames "cylinderindex" in the samples as "sensor", making it quite clear that it's about which sensor index the pressure data in the sample is about. The way we figure out which is the currently active gas is with an explicit has change event. If a computer (like the Uemis Zurich) joins the two concepts together, then a sensor change should also create a gas switch event. This patch also changes the Uemis importer to do that. Finally, it should be noted that the plot info works totally separately from the sample data, and is about what we actually *display*, not about the sample pressures etc. In the plot info, the "cylinderindex" does in fact mean the currently active cylinder, and while it is initially set to match the sensor information from the samples, we then walk the gas change events and fix it up - and if the active cylinder differs from the sensor cylinder, we clear the sensor data. [Dirk Hohndel: this conflicted with some of my recent changes - I think I merged things correctly...] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-30Allow overlapping (and disjoint) dive tripsGravatar Linus Torvalds
We used to have the rule that a dive trip has to have all dives in it in sequential order, even though our XML file really is much more flexible, and allows arbitrary nesting of dives within a dive trip. Put another way, the old model had fairly inflexible rules: - the dive array is sorted by time - a dive trip is always a contiguous slice of this sorted array which makes perfect sense when you think of the dive and trip list as a physical activity by one person, but leads to various very subtle issues in the general case when there are no guarantees that the user then uses subsurface that way. In particular, if you load the XML files of two divers that have overlapping dive trips, the end result is incredibly messy, and does not conform to the above model at all. There's two ways to enforce such conformance: - disallow that kind of behavior entirely. This is actually hard. Our XML files aren't date-based, they are based on XML nesting rules, and even a single XML file can have nesting that violates the date ordering. With multiple XML files, it's trivial to do in practice, and while we could just fail at loading, the failure would have to be a hard failure that leaves the user no way to use the data at all. - try to "fix it up" by sorting, splitting, and combining dive trips automatically. Dirk had a patch to do this, but it really does destroy the actual dive data: if you load both mine and Dirk's dive trips, you ended up with a result that followed the above two technical rules, but that didn't actually make any *sense*. So this patch doesn't try to enforce the rules, and instead just changes them to be more generic: - the dive array is still sorted by dive time - a dive trip is just an arbitrary collection of dives. The relaxed rules means that mixing dives and dive trips for two people is trivial, and we can easily handle any XML file. The dive trip is defined by the XML nesting level, and is totally independent of any date-based sorting. It does require a few things: - when we save our dive data, we have to do it hierarchically by dive trip, not just by walking the dive array linearly. - similarly, when we create the dive tree model, we can't just blindly walk the array of dives one by one, we have to look up the correct trip (parent) - when we try to merge two dives that are adjacent (by date sorting), we can't do it if they are in different trips. but apart from that, nothing else really changes. NOTE! Despite the new relaxed model, creating totally disjoing dive trips is not all that easy (nor is there any *reason* for it to be easty). Our GUI interfaces still are "add dive to trip above" etc, and the automatic adding of dives to dive trips is obviously still based on date. So this does not really change the expected normal usage, the relaxed data structure rules just mean that we don't need to worry about the odd cases as much, because we can just let them be. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-28Allow sorting dives by date - without the dive trips in the dive listGravatar Linus Torvalds
We used to enable dive trips whenever we sorted by date, which can be a bit annoying. Sometimes you really just want to sort all your dives by date, without necessarily seeing the trip data. So this changes the default sort to be the "dive number" table, and then does *not* actually sort by the dive number, but instead enables the trips, and then sorts the result by date. So the "dive number" column - which used to be non-sortable - becomes semantically equivalent to the old date column sorting. And now sorting by date makes it act like sorting by depth or any other attribute - we hide the dive trip tree, and just show the plain list of dives (sorted by date, obviously). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-28Free trip notes memory when deleting a tripGravatar Lubomir I. Ivanov
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-27Small changes in the memory management when dive-mergingGravatar Lubomir I. Ivanov
This patch makes a couple of modifications: 1) divelist.c:delete_single_dive() now tries to free all memory associated with a dive, such as the string values for divemaster, location, notes & etc. 2) dive.c:merge_text(), now always makes a copy in memory for the returned string - either combined or one of the two which are passed to the function. The reason for the above two changes is that when (say) importing the same data over and over, technically a merge will occur for the contained dives, but mapped pointers can go out of scope. main.c:report_dives() calls try_to_merge() and if succeeds the two dives that were merged are deleted from the table. when we delete a dive, we now make sure all string data is cleared with it, but also in the actual merge itself, which precedes, copies of the merged texts are made (with merge_text()), so that the new, resulted dive has his own text allocations. Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-26Fix crash when trip info changes across remember/restore tree stateGravatar Dirk Hohndel
Interesting crash. Importing a file gets us to a stage where we have a trip tree note with a date that doesn't exist as trip date. That's clearly bogus. And in import_files() we assume that all is still fine and try to restore the old expanded / selected state for the various trips. There is clearly a bigger issue here, this patch at least prevents the actual crash from happening by making sure the pointer is non-NULL before dereferencing it. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-22Fix some small memory leaks related to gtk_tree_model_get_path()Gravatar Lubomir I. Ivanov
From the GTK docs on gtk_tree_model_get_path(): "Returns a newly-created GtkTreePath referenced by iter. This path should be freed with gtk_tree_path_free()." Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-20Correctly calculate OTUs when pO2 is recorded in the samplesGravatar Dirk Hohndel
This will normally happen for CCR dives with a set pO2. The old calculations was only valid for OC dives. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-15Deal with some trip issues when editing dive timestampsGravatar Dirk Hohndel
The idea behind editing timestamps had of course been the typical "oops, I forgot to set my time correctly" which shifts a dive (or a few of them) by a few hours but keeps the overall order of dives the same). But reasonable people might argue that they can envision a scenario where more dramatic changes are being made. And we need to deal with the impact this has on dive trips. Here we handle a couple of simple cases: - this is the only dive in a trip; just update the trip (this can still cause problems if the new time is in the middle of an existing trip). - this dives moves before the start of the trip it is in; let's remove it from that trip (this response is a bit simplistic - but as I tried to say, I don't expect this to be a common use case; and removing it at least doesn't lead to entirely unexpected behavior). - this dive moves past the end of this trip into the range of a different trip (in this case we remove the dive from the current trip and allow it to interrupt the trip it is moving into). Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-11Merge branch 'cns' into cns-mergeGravatar Dirk Hohndel
I foolishly changed visible_columns in both the (ill-named) cns branch and master... Signed-off-by: Dirk Hohndel <dirk@hohndel.org> Conflicts: divelist.c gtk-gui.c profile.c
2012-12-10Display maximum CNS in the divelistGravatar Dirk Hohndel
We either pick the CNS reported by the dive computer at the end of the dive, or the maximum of that and the CNS values in the samples, if any. As usual, this column in the dive list defaults to off and it is controlled by a setting in the tec page of the preferences. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-10Add the ability to edit the date/time of a diveGravatar Dirk Hohndel
This can cause some fun unintended side effects - especially when the dive is part of a trip and the new date/time moves this into a different trip. Instead, trips get split and the overall result is consistent, but a bit unexpected. But since this is designed to help people right after a dive import in case the clock on the dive computer was wrong, my guess is this won't ever be a problem for actual users. Fixes ticket 18 Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-10Move global variables covered by Preferences into one structureGravatar Dirk Hohndel
Now we can simply remember the state of all the preferences at the beginning of preferences_dialog() and restore them if the user presses 'Cancel'. Fixes #21 Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-06Fix insert_trip to correctly deal with trips that start at the same timeGravatar Dirk Hohndel
The existing code did not move the dives that are part of the second trip to the first trip (and forgot to keep the 'better' notes as well). Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-04Merge trips without modifying the GTK treeGravatar Lubomir I. Ivanov
This patch does 4 small divelist.c changes in the following order of importance: 1) In find_trip_by_time() now there is a check if a trip is actually found before looking at the "when" flag. 2) Make remember_tree_state() slighly safer. If for example we have recently deleted a trip from the linked list, it may still exist in the GTK tree model, thus we want to check when calling find_trip_by_time() if there is an actual match before setting the "expanded" flag for a trip. 3) When merging two trips in merge_trips_cb(), only use the tree model to retrieve the timestamps (DIVE_DATE) and then find matching trips with find_matching_trip(). Once we have pointers to the two trips to be merged, move dives from one to another iterating with add_dive_to_trip(). 4) In merge_trips_cb() - remember the tree state, repopulate the tree and restore tree state, since now we are not adding/removing rows directly. tesdsad Reported-by: Miika Turkia <miika.turkia@gmail.com> Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-26Simplify tripflags: remove tripflag_names[]Gravatar Linus Torvalds
This removes the tripflag name array, since it's not actually useful. The only information we ever save in the XML file is whether a dive is explicitly not supposed to ever be grouped with a trip ("NOTRIP"), and everything else is implicit. I'm going to simplify the trip flags further (possibly removing it entirely - like I did for dive trips already), and don't like having to maintain the tripflag_names[] array logic. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-26Remove 'tripflag' from dive tripsGravatar Linus Torvalds
Both dives and dive trips have the same 'tripflag' thing, but they are used very differently. In particular, for dive trips, the only case that has any meaning is the TF_AUTOGEN case, so instead of having that trip flag, replace it with a bitfield that says whether the trip was auto-generated or not. And make the one-bit bitfields explicitly unsigned. Signed bitfields are almost always a mistake, and can be confusing. Also remove a few now stale macros that are no longer needed now that we don't do the GList thing for dive list handling, and our autogen logic has been simplified. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-26Clarify (and fix) dive trip auto-generationGravatar Linus Torvalds
This makes the dive trip auto-generation a separate pass from the showing of the dive trips, which makes things much more understandable. It simplifies the code a lot too, because it's much more natural to generate the automatic trip data by walking the dives from oldest to newest (while the tree model wants to walk the other way). It gets rid of the most annoying part of using the gtk tree model for dive trip management, but some still remains. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-26Remove 'when_from_file' field from dive tripGravatar Linus Torvalds
It had become a write-only field (apart from some now useless debugging) when simplifying the remove_autogen_trips() function. So remove it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-26Rewrite 'remove_autogen_trips()' without the gtk tree model walkingGravatar Linus Torvalds
I'm trying to remove (or at least simplify) the gtk tree model usage for our trip handling, but I'm doing it in small chunks. The goal is to just do all our trip handling logic explicitly using our own data structures, and use the gtk tree model purely for showing the end result. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-26Associate each dive trip with the dives in that tripGravatar Linus Torvalds
We already kept a count of dives per trip in order to figure out when there are no more dives left and the trip needs to be freed. Now we explicitly keep track of the list of dives associated with the trip too, which simplifies the "find the time of the trip" logic. We may want to sort it in time, but for now this is mainly about trying to keep track of the divetrip relationships explicitly. I want to move away from the whole "use the gtk tree model to keep track of things" approach. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-23Move events and samples into a 'struct divecomputer'Gravatar Linus Torvalds
For now we only have one fixed divecomputer associated with each dive, so this doesn't really change any current semantics. But it will make it easier for us to associate a dive with multiple dive computers. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-23Allocate dive samples separately from 'struct dive'Gravatar Linus Torvalds
We used to avoid some extra allocations by just allocating the dive samples as part of the 'struct dive' allocation itself, but that ends up complicating things, and will make it impossible to have multiple different sets of samples (for multiple dive computers). So stop doing it. Just allocate the dive samples array separately. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-21Make sure there are no invisible selected dives after import / downloadGravatar Dirk Hohndel
Prior to this commit, gtk often decided to collapse the trip with the selected dive after the user imported or downloaded additional dives. Since Subsurface tracks dives as being selected even after gtk collapses a trip (which clears all selection state as far as gtk is concerned) this could lead to the strange situation that the user could click on a new dive to select it without unselecting the already selected dive - and suddenly edit or delete did things that were entirely unwanted. With this change we explicitly save and then restore the tree state around import and download operations. This ensures that the same dive(s) stay selected and trips stay expanded and therefore avoids the issues described here. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-19Fix silly thinko in recent changes to "Delete dive" codeGravatar Linus Torvalds
Commit 38c79d149db0 ("Simplify and clean up dive trip management") simplified the code a bit *too* much, and removed the check for "dive->selected". As a result, trying to delete a dive resulted in *all* dives being deleted. Oops. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11Be stricter about when we allow merging of divesGravatar Linus Torvalds
If the surface interval between two dives is more than half an hour, don't try to call it a single dive. Just the dive profile will be looking ridiculous. Things like tank refills etc could also be a good thing to check (again, the dive profile would look ridiculous), but the cylinder pressure going up a small amount is actually normal (ie cylinder warming up in warmer water on the surface). So I don't know what the proper limit for that would be. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11Add special download modes to force updates from the divecomputerGravatar Dirk Hohndel
This will hopefully not be something we need often, but if we improve support for a divecomputer (either in libdivecomputer or in our native Uemis code or even in the way we handle (and potentially discard) events), then it is extremely useful to be able to say "re-download things from the divecomputer and for things that were not edited in Subsurface, don't try to merge the data (which gives BAD results if for example you fixed a bug in the depth calculation in libdivecomputer) but instead simply take the samples, the events and some of the other unedited data straight from the download". This commit implements just that - a "force download" checkbox in the download dialog that makes us reimport all dives from the dive computer, even the ones we already have, and an "always prefer downloaded dive" checkbox that then tells Subsurface not to merge but simply to take the data from the downloaded dive - without overwriting the things we have already edited in Subsurface (like location, buddy, equipment, etc). This, as a precaution, refuses to merge dives that don't have identical start times. So if you have edited the date / time of a dive or if you have previously merged your dive with a different dive computer (and therefore modified samples and events) you are out of luck. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11Fix selection and trip expansion logic after merging divesGravatar Linus Torvalds
This just makes sure that the merged dive is properly selected, and that we've saved the trip tree state so that the dive list repaints nicely and with the newly merged dive selected after the merge. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11Support merging of two adjacent divesGravatar Linus Torvalds
This introduces the notion of merging two disjoint dives: you can select two dives from the dive list, and if the selection is exactly two dives, and they are adjacent (and share the same dive trip), we support the notion of merging the dives into one dive. The most common reason for this is an extended surface event, which made the dive computer decide that the dive was ended, but maybe you were just waiting for a buddy or a student at the surface, and you want to stitch together two dives into one. There are still details to be sorted out: my Suunto dive computers don't actually do surface samples at the beginning or end of the dive, so when you stitch two dives together, the profile ends up being this odd "a couple of feet under water between the two parts of the dive" thing. But that's an independent thing from the actual merging logic, and I'll work on that separately. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11Merge branch 'pressure'Gravatar Dirk Hohndel
Make depth to absolute pressure conversions consistent.
2012-11-11Add depth to mbar helper functionGravatar Dirk Hohndel
This ensures that we use consistent math to get the absolute pressure at a certain depth. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11Simplify and clean up dive trip managementGravatar Linus Torvalds
This adds a couple of helper functions to manage dive trips ("add_dive_to_trip()" and "remove_dive_from_trip()") and makes those functions do the trip statistics maintenance (trip beginning times, number of dives, etc). This was needed because the dive merge cases for multiple dive computers showed some rather nasty special cases: especially if the new dive information has been loaded into an XML file with trips auto-generated, merging several of these kinds of xml files with multiple dives in several overlapping trips would completely confuse our previous code. In particular, auto-generated trips that had the exact same date as previous trips (because they were generated from the same dive computer) really confused the code that used the trip timestamp to manage the trips. Adding the helper functions allows us to get the general case right without having to have each piece of code that handles trip information having to bother about all the odd rules. It will eventually also allow us to make the dive trip data structures more logical: right now the dive trip list is largely designed around the odd gtk model handling, rather than some more higher-level conceptual relationship with the actual dives. But for now, this keeps all the data structures unchanged, and just modifies them using the new helper functions. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-09Fix dive trip merging logicGravatar Linus Torvalds
We used to have very spotty logic for picking the dive trip when merging two dives. It turns out that that spotty logic almost never really matters, because in practice you'll never hit the situation of merging two dives with different dive trips, but it *can* happen. In particular, it happens when you use multiple dive computers, and end up loading the dives from one computer on top of the dives of your other computer. If the clocks of the dive computers was set sufficiently close to each other, the dive merging logic will kick in and you may now have slightly different times for the dives that get merged, and the trip merging logic got *really* confused. The trip management also depends on the trip dates being updated correctly when the dives associated with a trip are updated (whether added or removed), and the trip merging code did none of that. This fixes it all up. Hopefully correctly. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-05Repair broken Add Dive menu itemGravatar Henrik Brautaset Aronsen
Lubomir's commit aec904b612cbee57f8bb5c3289a120b69c9ade24 broke the Add Dive menu item: The Edit Dive dialogue didn't show up after the initial dialogue. Signed-off-by: Henrik Brautaset Aronsen <subsurface@henrik.synth.no> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-10-24Added confirmation dialog when deleting dives and tripsGravatar Lubomir I. Ivanov
divelist.c: Show a "Yes/No" confirmation dialog when performing delete/remove operations for dives and trips. Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-10-19Use subsurface_os_feature_available() to check for unicode stars supportGravatar Lubomir I. Ivanov
Mainly affecting older Windows (such as XP), which do not have a more fully featured unicode fonts installed, such as Arial Unicode MS. With this patch we do a runtime check of the OS version in a couple of places and if the OS is old, we use the asterix character and spaces instead of the unicode star characters. Linux and OSX should be unaffected by this change unless subsurface_os_feature_available() returns FALSE for UTF8_FONT_WITH_STARS at some point. Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-10-19Translate "air"Gravatar Henrik Brautaset Aronsen
Translate the "air" text in the divelist. Suggested-by: Lubomir I. Ivanov <neolit123@gmail.com> Signed-off-by: Henrik Brautaset Aronsen <subsurface@henrik.synth.no> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>