Read the cell map for ranges over a quarter of the sheet's cells

Dami committed Sep 27ef8c0a7

commit: ef8c0a76996d61c62cc02cba9cc74975c9161495
parent: cf897e2efff656c63f87d94eafe493953160d368
author: Dami <dami.etoile@gmail.com>

1 file changed, +3 -3wrap lines

+++---

@@ -100,11 +100,11 @@ func (st *cellStore) inRange(r Rect) iter.Seq2[Addr, *Cell] {
100100 101101 // anyInRange yields the stored cells in r in no particular order,102102 // visiting whichever is cheaper: the index, row by row, or every stored103-// cell (iterating the map costs a fraction of a lookup per cell) when r104-// is as large as the sheet's cells are many.103+// cell (iterating the map costs a quarter of a lookup per cell) when r104+// is more than a quarter as large as the sheet's cells are many.105105 func (st *cellStore) anyInRange(r Rect) iter.Seq2[Addr, *Cell] {106106 	area := (r.To.Col - r.From.Col + 1) * (r.To.Row - r.From.Row + 1)107-	if area < len(st.m) {107+	if area <= len(st.m)/4 {108108 		return st.inRange(r)109109 	}110110 	return func(yield func(Addr, *Cell) bool) {