Method SortColumn

core/table.go:397–426

SortColumn sorts the slice for the given field index. It toggles between ascending and descending if already sorting on this field.

(fieldIndex int)

// It toggles between ascending and descending if already
// sorting on this field.
func (tb *Table) SortColumn(fieldIndex int) {
	sgh := tb.header
	_, idxOff := tb.RowWidgetNs()

	ascending := true

	for fli := 0; fli < tb.numVisibleFields; fli++ {
		hdr := sgh.Child(idxOff + fli).(*Button)
		hdr.SetType(ButtonAction)
		if fli == fieldIndex {
			if tb.sortIndex == fli {
				tb.sortDescending = !tb.sortDescending
				ascending = !tb.sortDescending
			} else {
				tb.sortDescending = false
			}
			if ascending {
				hdr.SetIcon(icons.KeyboardArrowUp)
			} else {
				hdr.SetIcon(icons.KeyboardArrowDown)
			}
		} else {
			hdr.SetIcon("none")
		}
	}

	tb.sortIndex = fieldIndex
	tb.SortSlice()
	tb.Update()
}

// sortFieldName returns the name of the field being sorted, along with :up or
// :down depending on ascending or descending sorting.