+ int64_t sample_num = view_.get_nearest_level_change(drag_point_ + delta);
+
+ if (sample_num > -1)
+ set_time(sample_num / view_.get_signal_under_mouse_cursor()->base()->get_samplerate());
+ else
+ set_time(view_.offset() + (drag_point_.x() + delta.x() - 0.5) *
+ view_.scale());