1 files changed, 30 insertions, 0 deletions
diff --git a/stats/quartilemarker.cpp b/stats/quartilemarker.cpp
new file mode 100644
index 000000000..ace019df5
--- /dev/null
+++ b/stats/quartilemarker.cpp
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "quartilemarker.h"
+#include "statsaxis.h"
+#include "zvalues.h"
+
+static const QColor quartileMarkerColor(Qt::red);
+static const double quartileMarkerSize = 15.0;
+
+QuartileMarker::QuartileMarker(StatsView &view, double pos, double value, StatsAxis *xAxis, StatsAxis *yAxis) :
+	ChartLineItem(view, ChartZValue::ChartFeatures, quartileMarkerColor, 2.0),
+	xAxis(xAxis), yAxis(yAxis),
+	pos(pos),
+	value(value)
+{
+	updatePosition();
+}
+
+QuartileMarker::~QuartileMarker()
+{
+}
+
+void QuartileMarker::updatePosition()
+{
+	if (!xAxis || !yAxis)
+		return;
+	double x = xAxis->toScreen(pos);
+	double y = yAxis->toScreen(value);
+	setLine(QPointF(x - quartileMarkerSize / 2.0, y),
+		QPointF(x + quartileMarkerSize / 2.0, y));
+}