Display surface interval in diveplan

...instead of just stating "repetitive dive". As requested by
a user.

Signed-off-by: Robert C. Helling <helling@atdotde.de>

4 files changed, 21 insertions, 15 deletions

diff --git a/core/dive.h b/core/dive.h
index aa6352db3..8798b22ff 100644
--- a/core/dive.h
+++ b/core/dive.h
@@ -860,7 +860,7 @@ struct diveplan {
 	short vpmb_conservatism;
 	struct divedatapoint *dp;
 	int eff_gflow, eff_gfhigh;
-	bool repetitive;
+	unsigned int surface_interval;
 };
 
 struct divedatapoint *plan_add_segment(struct diveplan *diveplan, int duration, int depth, int cylinderid, int po2, bool entered);
diff --git a/core/divelist.c b/core/divelist.c
index f4762ddef..fdc1f906b 100644
--- a/core/divelist.c
+++ b/core/divelist.c
@@ -361,7 +361,7 @@ static struct gasmix air = { .o2.permille = O2_IN_AIR, .he.permille = 0 };
 
 /* take into account previous dives until there is a 48h gap between dives */
 /* return true if this is a repetitive dive */
-bool init_decompression(struct dive *dive)
+unsigned int init_decompression(struct dive *dive)
 {
 	int i, divenr = -1;
 	unsigned int surface_time;
@@ -448,7 +448,7 @@ bool init_decompression(struct dive *dive)
 	}
 	// I do not dare to remove this call. We don't need the result but it might have side effects. Bummer.
 	tissue_tolerance_calc(dive, surface_pressure);
-	return deco_init;
+	return surface_time;
 }
 
 void update_cylinder_related_info(struct dive *dive)
diff --git a/core/divelist.h b/core/divelist.h
index f36766fed..52ebbada9 100644
--- a/core/divelist.h
+++ b/core/divelist.h
@@ -14,7 +14,7 @@ extern void update_cylinder_related_info(struct dive *);
 extern void mark_divelist_changed(int);
 extern int unsaved_changes(void);
 extern void remove_autogen_trips(void);
-extern bool init_decompression(struct dive *dive);
+extern unsigned int init_decompression(struct dive *dive);
 
 /* divelist core logic functions */
 extern void process_dives(bool imported, bool prefer_imported);
diff --git a/core/planner.c b/core/planner.c
index 5bc7e82b6..cb11bfbaa 100644
--- a/core/planner.c
+++ b/core/planner.c
@@ -128,7 +128,7 @@ void interpolate_transition(struct dive *dive, duration_t t0, duration_t t1, dep
 }
 
 /* returns the tissue tolerance at the end of this (partial) dive */
-bool tissue_at_end(struct dive *dive, char **cached_datap)
+unsigned int tissue_at_end(struct dive *dive, char **cached_datap)
 {
 	struct divecomputer *dc;
 	struct sample *sample, *psample;
@@ -136,19 +136,19 @@ bool tissue_at_end(struct dive *dive, char **cached_datap)
 	depth_t lastdepth = {};
 	duration_t t0 = {}, t1 = {};
 	struct gasmix gas;
-	bool repetitive = false;
+	unsigned int surface_interval = 0;
 
 	if (!dive)
-		return false;
+		return 0;
 	if (*cached_datap) {
 		restore_deco_state(*cached_datap);
 	} else {
-		repetitive = init_decompression(dive);
+		surface_interval = init_decompression(dive);
 		cache_deco_state(cached_datap);
 	}
 	dc = &dive->dc;
 	if (!dc->samples)
-		return false;
+		return 0;
 	psample = sample = dc->sample;
 
 	for (i = 0; i < dc->samples; i++, sample++) {
@@ -191,7 +191,7 @@ bool tissue_at_end(struct dive *dive, char **cached_datap)
 		psample = sample;
 		t0 = t1;
 	}
-	return repetitive;
+	return surface_interval;
 }
 
 
@@ -596,10 +596,16 @@ static void add_plan_to_notes(struct diveplan *diveplan, struct dive *dive, bool
 		snprintf(temp, sz_temp, translate("gettextFromC", "recreational mode based on Bühlmann ZHL-16B with GFlow = %d and GFhigh = %d"),
 			diveplan->gflow, diveplan->gfhigh);
 	}
-	len += snprintf(buffer + len, sz_buffer - len, "<div><b>%s%s</b><br>%s</div>",
-			translate("gettextFromC", "Subsurface dive plan"),
-			diveplan->repetitive ? translate("gettextFromC", " (repetitive)") : "",
-			temp);
+	if (diveplan->surface_interval > 60) {
+		len += snprintf(buffer + len, sz_buffer - len, "<div><b>%s %d:%02d)</b><br>%s</div>",
+				translate("gettextFromC", "Subsurface dive plan (surface interval "),
+				FRACTION(diveplan->surface_interval / 60, 60),
+				temp);
+	} else {
+		len += snprintf(buffer + len, sz_buffer - len, "<div><b>%s</b><br>%s</div>",
+				translate("gettextFromC", "Subsurface dive plan"),
+				temp);
+	}
 	len += snprintf(buffer + len, sz_buffer - len, translate("gettextFromC", "<div>Runtime: %dmin</div><br>"),
 			diveplan_duration(diveplan));
 
@@ -1086,7 +1092,7 @@ bool plan(struct diveplan *diveplan, char **cached_datap, bool is_planner, bool
 	gi = gaschangenr - 1;
 
 	/* Set tissue tolerance and initial vpmb gradient at start of ascent phase */
-	diveplan->repetitive = tissue_at_end(&displayed_dive, cached_datap);
+	diveplan->surface_interval = tissue_at_end(&displayed_dive, cached_datap);
 	nuclear_regeneration(clock);
 	vpmb_start_gradient();