Project structure refactoring

src/GUI/heartrategraphitem.cpp

@@ -0,0 +1,26 @@
+#include "tooltip.h"
+#include "heartrategraphitem.h"
+
+HeartRateGraphItem::HeartRateGraphItem(const Graph &graph, GraphType type,
+  QGraphicsItem *parent) : GraphItem(graph, type, parent)
+{
+	qreal sum = 0;
+
+	for (int j = 1; j < graph.size(); j++)
+		sum += graph.at(j).y() * (graph.at(j).s() - graph.at(j-1).s());
+	_avg = sum/graph.last().s();
+
+	setToolTip(toolTip());
+}
+
+QString HeartRateGraphItem::toolTip() const
+{
+	ToolTip tt;
+
+	tt.insert(tr("Maximum"), QString::number(max(), 'f', 0)
+	  + UNIT_SPACE + tr("1/min"));
+	tt.insert(tr("Average"), QString::number(avg(), 'f', 0)
+	  + UNIT_SPACE + tr("1/min"));
+
+	return tt.toString();
+}