+ void paint(QPainter &p, QColor text_colour, int text_height, int left,
+ int right, double samples_per_pixel, double pixels_offset,
+ int y);
+
+private:
+ void draw_instant(QPainter &p, QColor fill, QColor outline,
+ QColor text_color, int h, double x, int y);
+
+ void draw_range(QPainter &p, QColor fill, QColor outline,
+ QColor text_color, int h, double start,
+ double end, int y);
+