void TBScrollBox::page_backward(DimensionName d) { scroll_by(d, long(large_scroll(d))); }
void Adjustable::page_backward(DimensionName d) { scroll_to(d, cur_lower(d) - large_scroll(d)); }
void TBScrollBox::page_backward(DimensionName d) { scroll_by(d, long(large_scroll(d))); }
void Adjustable::page_backward(DimensionName d) { scroll_to(d, cur_lower(d) - large_scroll(d)); }