+
+ int paint_caps(QPainter &p, QLineF *const lines,
+ std::vector< std::pair<int64_t, bool> > &edges,
+ bool level, double samples_per_pixel, double pixels_offset,
+ int x_offset, int y_offset);
+
+ /**
+ * Get the colour of the logic signal
+ */
+ QColor get_colour() const;
+
+ /**
+ * When painting into the rectangle, calculate the y
+ * offset of the zero point.
+ **/
+ int get_nominal_offset(const QRect &rect) const;