_name_item->set_font_description (name_font);
_name_item->set_color (RGBA_TO_UINT (0,0,0,255));
_name_item->set_position (ArdourCanvas::Duple (_label_offset, (marker_height - name_height - 1) * .5 ));
set_name (annotation.c_str());
_name_item->set_font_description (name_font);
_name_item->set_color (RGBA_TO_UINT (0,0,0,255));
_name_item->set_position (ArdourCanvas::Duple (_label_offset, (marker_height - name_height - 1) * .5 ));
set_name (annotation.c_str());