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More consistency improvements

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Treat SAC and OTU consistently:
- SAC is now a member of struct dive
- it's calculated / populated at the same time with a helper function with
  consistent API

Create get_volume_units function that returns volumes (e.g. used in SAC
rates) based on preferred units - make sure we have these conversions just
once in the code.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2011-11-01 19:56:14 -07:00
parent 18b8247cb3
commit a487f6c931
3 changed files with 38 additions and 9 deletions
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14
divelist.c
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@ -315,23 +315,22 @@ static double calculate_airuse(struct dive *dive)
return airuse;
}
static void get_sac(struct dive *dive, int *val)
static int calculate_sac(struct dive *dive)
{
double airuse, pressure, sac;
*val = 0;
airuse = calculate_airuse(dive);
if (!airuse)
return;
return 0;
if (!dive->duration.seconds)
return;
return 0;
/* Mean pressure in atm: 1 atm per 10m */
pressure = 1 + (dive->meandepth.mm / 10000.0);
sac = airuse / pressure * 60 / dive->duration.seconds;
/* milliliters per minute.. */
*val = sac * 1000;
return sac * 1000;
}
static void get_string(char **str, const char *s)
@ -364,12 +363,10 @@ static void fill_one_dive(struct dive *dive,
GtkTreeModel *model,
GtkTreeIter *iter)
{
int sac;
char *location, *cylinder;
get_cylinder(dive, &cylinder);
get_location(dive, &location);
get_sac(dive, &sac);
/*
* We only set the fields that changed: the strings.
@ -379,7 +376,7 @@ static void fill_one_dive(struct dive *dive,
DIVE_NR, dive->number,
DIVE_LOCATION, location,
DIVE_CYLINDER, cylinder,
DIVE_SAC, sac,
DIVE_SAC, dive->sac,
DIVE_OTU, dive->otu,
-1);
}
@ -471,6 +468,7 @@ static void fill_dive_list(void)
struct dive *dive = dive_table.dives[i];
dive->otu = calculate_otu(dive);
dive->sac = calculate_sac(dive);
gtk_list_store_append(store, &iter);
gtk_list_store_set(store, &iter,
DIVE_INDEX, i,