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Don't assume that pressures are always positive

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When planning a dive, the dive could use more gas than is in the cylinder.
So getting a negative end pressure is a useful indication to the user that
there plan might not be a good one.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2014-05-29 13:13:11 -07:00
parent 45725d1c30
commit 56395b3894
5 changed files with 7 additions and 7 deletions
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4
dive.c
View file

@ -76,7 +76,7 @@ void remove_event(struct event* event)
}
}
int get_pressure_units(unsigned int mb, const char **units)
int get_pressure_units(int mb, const char **units)
{
int pressure;
const char *unit;
@ -454,7 +454,7 @@ void per_cylinder_mean_depth(struct dive *dive, struct divecomputer *dc, int *me
static void fixup_pressure(struct dive *dive, struct sample *sample)
{
unsigned int pressure, index;
int pressure, index;
cylinder_t *cyl;
pressure = sample->cylinderpressure.mbar;

2
dive.h
View file

@ -68,7 +68,7 @@ typedef struct
const char *description; /* "integrated", "belt", "ankle" */
} weightsystem_t;
extern int get_pressure_units(unsigned int mb, const char **units);
extern int get_pressure_units(int mb, const char **units);
extern double get_depth_units(int mm, int *frac, const char **units);
extern double get_volume_units(unsigned int ml, int *frac, const char **units);
extern double get_temp_units(unsigned int mk, const char **units);

2
helpers.h
View file

@ -19,7 +19,7 @@ QString get_weight_unit();
QString get_cylinder_used_gas_string(cylinder_t *cyl, bool showunit = false);
QString get_temperature_string(temperature_t temp, bool showunit = false);
QString get_temp_unit();
QString get_volume_string(volume_t volume, bool showunit = false, unsigned int mbar = 0);
QString get_volume_string(volume_t volume, bool showunit = false, int mbar = 0);
QString get_volume_unit();
QString get_pressure_string(pressure_t pressure, bool showunit = false);
QString get_pressure_unit();

4
profile.c
View file

@ -683,7 +683,7 @@ struct plot_info calculate_max_limits_new(struct dive *dive, struct divecomputer
/* Get the per-cylinder maximum pressure if they are manual */
for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
unsigned int mbar = dive->cylinder[cyl].start.mbar;
int mbar = dive->cylinder[cyl].start.mbar;
if (mbar > maxpressure)
maxpressure = mbar;
if (mbar < minpressure)
@ -964,7 +964,7 @@ static void populate_pressure_information(struct dive *dive, struct divecomputer
current = NULL;
for (i = 0; i < pi->nr; i++) {
struct plot_data *entry = pi->entry + i;
unsigned pressure = SENSOR_PRESSURE(entry);
int pressure = SENSOR_PRESSURE(entry);
/* discrete integration of pressure over time to get the SAC rate equivalent */
if (current) {

2
qt-gui.cpp
View file

@ -286,7 +286,7 @@ QString get_temp_unit()
return QString(UTF8_DEGREE "F");
}
QString get_volume_string(volume_t volume, bool showunit, unsigned int mbar)
QString get_volume_string(volume_t volume, bool showunit, int mbar)
{
if (prefs.units.volume == units::LITER) {
double liter = volume.mliter / 1000.0;