lineGraph: add support for floating point values

It seems that floats weren't previously supported due to a programming error on my part

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cpp/lineGraph.h b/src/cpp/lineGraph.h
index 4ee4655..f6a592c 100644
--- a/src/cpp/lineGraph.h
+++ b/src/cpp/lineGraph.h
@@ -76,8 +76,8 @@ private:
     QColor m_color = QColor(255,255,255);
     QPixmap m_pixmap;
     QList<QPointF> m_filedata;
-    int minValue = 0;
-    int maxValue = 0;
+    float minValue = 0;
+    float maxValue = 0;
     int minTime;
     int maxTime;
     bool graphRelative;