X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=profile.c;h=f898be74580d04e80b03926428df962e8d2f32c5;hb=ee56021dfbc3bcc12f5917cdf481cc96c51a2b89;hp=3649bc1319aae494d42632e688a2d61cda03ff54;hpb=eed9538101a97142d8327119b9539f847f818198;p=ext%2Fsubsurface.git

diff --git a/profile.c b/profile.c
index 3649bc1..f898be7 100644
--- a/profile.c
+++ b/profile.c
@@ -8,16 +8,21 @@
 int selected_dive = 0;
 
 #define ROUND_UP(x,y) ((((x)+(y)-1)/(y))*(y))
-#define MAX(x,y) ((x) > (y) ? (x) : (y))
 
+/*
+ * When showing dive profiles, we scale things to the
+ * current dive. However, we don't scale past less than
+ * 30 minutes or 90 ft, just so that small dives show
+ * up as such.
+ */
 static int round_seconds_up(int seconds)
 {
-	return MAX(30, ROUND_UP(seconds, 60*10));
+	return MAX(30*60, ROUND_UP(seconds, 60*10));
 }
 
 static int round_feet_up(int feet)
 {
-	return MAX(45, ROUND_UP(feet+5, 15));
+	return MAX(90, ROUND_UP(feet+5, 15));
 }
 
 /* Scale to 0,0 -> maxx,maxy */
@@ -29,6 +34,7 @@ static void plot(cairo_t *cr, int w, int h, struct dive *dive, int samples, stru
 	double topx, topy, maxx, maxy;
 	double scalex, scaley;
 	int maxtime, maxdepth;
+	int begins, sec, depth;
 
 	topx = w / 20.0;
 	topy = h / 20.0;
@@ -63,11 +69,21 @@ static void plot(cairo_t *cr, int w, int h, struct dive *dive, int samples, stru
 
 	/* Depth profile */
 	cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.80);
+	begins = sample->time.seconds;
 	cairo_move_to(cr, SCALE(sample->time.seconds, to_feet(sample->depth)));
 	for (i = 1; i < dive->samples; i++) {
 		sample++;
-		cairo_line_to(cr, SCALE(sample->time.seconds, to_feet(sample->depth)));
+		sec = sample->time.seconds;
+		depth = to_feet(sample->depth);
+		cairo_line_to(cr, SCALE(sec, depth));
 	}
+	scaley = 1.0;
+	cairo_line_to(cr, SCALE(sec, 0));
+	cairo_line_to(cr, SCALE(begins, 0));
+	cairo_close_path(cr);
+	cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.20);
+	cairo_fill_preserve(cr);
+	cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.80);
 	cairo_stroke(cr);
 
 	/* Bounding box last */