diff options
Diffstat (limited to 'statistics.c')
| -rw-r--r-- | statistics.c | 62 |
1 files changed, 56 insertions, 6 deletions
diff --git a/statistics.c b/statistics.c index 411ba1c1f..6459b3802 100644 --- a/statistics.c +++ b/statistics.c @@ -290,23 +290,73 @@ volume_t get_gas_used(struct dive *dive) return gas_used; } +bool is_gas_used(struct dive *dive, int idx) +{ + cylinder_t *cyl = &dive->cylinder[idx]; + int o2, he; + struct divecomputer *dc; + bool used = FALSE; + bool firstGasExplicit = FALSE; + if (cylinder_none(cyl)) + return FALSE; + + o2 = get_o2(&cyl->gasmix); + he = get_he(&cyl->gasmix); + dc = &dive->dc; + while (dc) { + struct event *event = dc->events; + while (event) { + if (event->value) { + if (event->name && !strcmp(event->name, "gaschange")) { + unsigned int event_he = event->value >> 16; + unsigned int event_o2 = event->value & 0xffff; + if (event->time.seconds < 30) + firstGasExplicit = TRUE; + if (is_air(o2, he)) { + if (is_air(event_o2 * 10, event_he * 10)) + used = TRUE; + } else if (he == event_he * 10 && o2 == event_o2 * 10) { + used = TRUE; + } + } + } + if (used) + break; + event = event->next; + } + if (used) + break; + dc = dc->next; + } + if (idx == 0 && !firstGasExplicit) + used = TRUE; + return used; +} + #define MAXBUF 80 /* for the O2/He readings just create a list of them */ char *get_gaslist(struct dive *dive) { int idx, offset = 0; static char buf[MAXBUF]; + int o2, he; buf[0] = '\0'; for (idx = 0; idx < MAX_CYLINDERS; idx++) { - cylinder_t *cyl = &dive->cylinder[idx]; - if (!cylinder_none(cyl)) { - int o2 = get_o2(&cyl->gasmix); - int he = get_he(&cyl->gasmix); + cylinder_t *cyl; + if (!is_gas_used(dive, idx)) + continue; + cyl = &dive->cylinder[idx]; + o2 = get_o2(&cyl->gasmix); + he = get_he(&cyl->gasmix); + if (is_air(o2, he)) + snprintf(buf + offset, MAXBUF - offset, (offset > 0) ? ", %s" : "%s", _("air")); + else snprintf(buf + offset, MAXBUF - offset, (offset > 0) ? ", %d/%d" : "%d/%d", (o2 + 5) / 10, (he + 5) / 10); - offset = strlen(buf); - } + offset = strlen(buf); } + if (*buf == '\0') + strncpy(buf, _("air"), MAXBUF); return buf; } |