- cairo_set_source_rgb (cr, 0.2, 0.2, 0.2);
- cairo_set_line_width (cr, _track_height - 1);
- cairo_move_to (cr, 0, y + _track_height / 2);
- cairo_line_to (cr, get_width(), y + _track_height / 2);
- cairo_stroke (cr);
-
+ if ( _track_height > 4 ) {
+ cairo_set_source_rgb (cr, 0.2, 0.2, 0.2);
+ cairo_set_line_width (cr, _track_height - 1);
+ cairo_move_to (cr, 0, y + _track_height / 2);
+ cairo_line_to (cr, get_width(), y + _track_height / 2);
+ cairo_stroke (cr);
+ }
+