Add a helper function to calculate weight display string

Add a helper function to unify the calculation of the
weight display string, instead of having the same calculation
in two places in the code.

Signed-off-by: Benjamin Fogel <nystire@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/qthelper.cpp b/qthelper.cpp
index 68f8c5058..36d1d02c7 100644
--- a/qthelper.cpp
+++ b/qthelper.cpp
@@ -76,3 +76,21 @@ void DiveComputerList::rmDC(QString m, uint32_t d)
 	const DiveComputerNode *existNode = this->getExact(m, d);
 	dcMap.remove(m, *existNode);
 }
+
+QString weight_string(int weight_in_grams)
+{
+	QString str;
+	if (get_units()->weight == units::KG) {
+		int gr = weight_in_grams % 1000;
+		int kg = weight_in_grams / 1000;
+        if (kg >= 20.0) {
+		  str = QString("0");
+        } else {
+		  str = QString("%1.%2").arg(kg).arg((unsigned)(gr) / 100);
+        }
+	} else {
+		double lbs = grams_to_lbs(weight_in_grams);
+		str = QString("%1").arg(lbs, 0, 'f', lbs >= 40.0 ? 0 : 1 );
+	}
+	return (str);
+}