Planner: enforce minimal segement duration

You cannot be at two depths at the same time (and it confuses
the planner). So give yourself at least 10 seconds.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 26 insertions, 8 deletions

diff --git a/qt-models/diveplannermodel.cpp b/qt-models/diveplannermodel.cpp
index bdc79c9e6..5be22b08d 100644
--- a/qt-models/diveplannermodel.cpp
+++ b/qt-models/diveplannermodel.cpp
@@ -339,17 +339,35 @@ bool DivePlannerPointsModel::setData(const QModelIndex &index, const QVariant &v
 			}
 			break;
 		case RUNTIME:
-			p.time = value.toInt() * 60;
-			break;
-		case DURATION:
+		{
+			int secs = value.toInt() * 60;
 			i = index.row();
+			int duration = secs;
 			if (i)
-				shift = divepoints[i].time - divepoints[i - 1].time - value.toInt() * 60;
-			else
-				shift = divepoints[i].time - value.toInt() * 60;
-			while (i < divepoints.size())
-				divepoints[i++].time -= shift;
+				duration -= divepoints[i-1].time;
+			// Make sure segments have a minimal duration
+			if (duration <= 0)
+				secs += 10 - duration;
+			p.time = secs;
+			while (++i < divepoints.size())
+				if (divepoints[i].time < divepoints[i - 1].time + 10)
+					divepoints[i].time = divepoints[i - 1].time + 10;
+		}
 			break;
+		case DURATION:
+		{
+				int secs = value.toInt() * 60;
+				if (!secs)
+					secs = 10;
+				i = index.row();
+				if (i)
+					shift = divepoints[i].time - divepoints[i - 1].time - secs;
+				else
+					shift = divepoints[i].time - secs;
+				while (i < divepoints.size())
+					divepoints[i++].time -= shift;
+		}
+				break;
 		case CCSETPOINT: {
 			int po2 = 0;
 			QByteArray gasv = value.toByteArray();