*/
int get_y() const;
+ /**
+ * Gets the text colour.
+ * @remarks This colour is computed by comparing the lightness
+ * of the trace colour against a threshold to determine whether
+ * white or black would be more visible.
+ */
+ QColor get_text_colour() const;
+
/**
* Paints a zero axis across the viewport.
* @param p the QPainter to paint into.