X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=dive.c;h=a1ef28c8e3d0deb9bceb686215ce5dfbaf0a53a2;hb=a6f6e8d6ff06d03fc01d8a6e7f50240e405b7ea6;hp=1b906ee43bd9a7e86db41d08cc5d3f288732a012;hpb=682135838ff313594c7f67fabd9be8f88a33883b;p=ext%2Fsubsurface.git

diff --git a/dive.c b/dive.c
index 1b906ee..a1ef28c 100644
--- a/dive.c
+++ b/dive.c
@@ -5,6 +5,54 @@
 
 #include "dive.h"
 
+void add_event(struct dive *dive, int time, int type, int flags, int value, const char *name)
+{
+	struct event *ev, **p;
+	unsigned int size, len = strlen(name);
+
+	size = sizeof(*ev) + len + 1;
+	ev = malloc(size);
+	if (!ev)
+		return;
+	memset(ev, 0, size);
+	memcpy(ev->name, name, len);
+	ev->time.seconds = time;
+	ev->type = type;
+	ev->flags = flags;
+	ev->value = value;
+	ev->next = NULL;
+
+	p = &dive->events;
+	while (*p)
+		p = &(*p)->next;
+	*p = ev;
+}
+
+double get_depth_units(unsigned int mm, int *frac, const char **units)
+{
+	int decimals;
+	double d;
+	const char *unit;
+
+	switch (output_units.length) {
+	case METERS:
+		d = mm / 1000.0;
+		unit = "m";
+		decimals = d < 20;
+		break;
+	case FEET:
+		d = mm_to_feet(mm);
+		unit = "ft";
+		decimals = 0;
+		break;
+	}
+	if (frac)
+		*frac = decimals;
+	if (units)
+		*units = unit;
+	return d;
+}
+
 struct dive *alloc_dive(void)
 {
 	const int initial_samples = 5;
@@ -173,6 +221,7 @@ struct dive *fixup_dive(struct dive *dive)
 /* Don't pick a zero for MERGE_MIN() */
 #define MERGE_MAX(res, a, b, n) res->n = MAX(a->n, b->n)
 #define MERGE_MIN(res, a, b, n) res->n = (a->n)?(b->n)?MIN(a->n, b->n):(a->n):(b->n)
+#define MERGE_TXT(res, a, b, n) res->n = merge_text(a->n, b->n)
 
 static struct dive *add_sample(struct sample *sample, int time, struct dive *dive)
 {
@@ -270,6 +319,59 @@ static char *merge_text(const char *a, const char *b)
 	return res;
 }
 
+#define SORT(a,b,field) \
+	if (a->field != b->field) return a->field < b->field ? -1 : 1
+
+static int sort_event(struct event *a, struct event *b)
+{
+	SORT(a,b,time.seconds);
+	SORT(a,b,type);
+	SORT(a,b,flags);
+	SORT(a,b,value);
+	return strcmp(a->name, b->name);
+}
+
+static void merge_events(struct dive *res, struct dive *src1, struct dive *src2, int offset)
+{
+	struct event *a, *b;
+	struct event **p = &res->events;
+
+	a = src1->events;
+	b = src2->events;
+	while (b) {
+		b->time.seconds += offset;
+		b = b->next;
+	}
+	b = src2->events;
+
+	while (a || b) {
+		int s;
+		if (!b) {
+			*p = a;
+			break;
+		}
+		if (!a) {
+			*p = b;
+			break;
+		}
+		s = sort_event(a, b);
+		/* Pick b */
+		if (s > 0) {
+			*p = b;
+			p = &b->next;
+			b = b->next;
+			continue;
+		}
+		/* Pick 'a' or neither */
+		if (s < 0) {
+			*p = a;
+			p = &a->next;
+		}
+		a = a->next;
+		continue;
+	}
+}
+
 /* Pick whichever has any info (if either). Prefer 'a' */
 static void merge_cylinder_type(cylinder_type_t *res, cylinder_type_t *a, cylinder_type_t *b)
 {
@@ -309,8 +411,10 @@ struct dive *try_to_merge(struct dive *a, struct dive *b)
 	res = alloc_dive();
 
 	res->when = a->when;
-	res->location = merge_text(a->location, b->location);
-	res->notes = merge_text(a->notes, b->notes);
+	MERGE_TXT(res, a, b, location);
+	MERGE_TXT(res, a, b, notes);
+	MERGE_TXT(res, a, b, buddy);
+	MERGE_TXT(res, a, b, divemaster);
 	MERGE_MAX(res, a, b, number);
 	MERGE_MAX(res, a, b, maxdepth.mm);
 	res->meandepth.mm = 0;
@@ -320,6 +424,6 @@ struct dive *try_to_merge(struct dive *a, struct dive *b)
 	MERGE_MIN(res, a, b, watertemp.mkelvin);
 	for (i = 0; i < MAX_CYLINDERS; i++)
 		merge_cylinder_info(res->cylinder+i, a->cylinder + i, b->cylinder + i);
-
+	merge_events(res, a, b, 0);
 	return merge_samples(res, a, b, 0);
 }