void zoom(double steps);
void zoom(double steps, int offset);
+ void zoom_fit();
+
+ void zoom_one_to_one();
+
/**
* Sets the scale and offset.
* @param scale The new view scale in seconds per pixel.
void normalize_layout();
+ void update_viewport();
+
signals:
void hover_point_changed();
private:
void get_scroll_layout(double &length, double &offset) const;
+ void set_zoom(double scale, int offset);
+
void update_scroll();
static bool compare_trace_v_offsets(