for (LayerPaintFunc *paint_func = layer_paint_funcs;
*paint_func; paint_func++) {
ViewItemPaintParams time_pp(rect(), view_.scale(), view_.offset());
- for (const shared_ptr<TimeItem> t : time_items)
+ for (const shared_ptr<TimeItem>& t : time_items)
(t.get()->*(*paint_func))(p, time_pp);
ViewItemPaintParams row_pp(rect(), view_.scale(), view_.offset());
- for (const shared_ptr<RowItem> r : row_items)
+ for (const shared_ptr<RowItem>& r : row_items)
(r.get()->*(*paint_func))(p, row_pp);
}