Method Split

core/splits.go:288–318

Split returns the split proportion for given child index

(idx int)

// Split returns the split proportion for given child index
func (sl *Splits) Split(idx int) float32 {
	ci := 0
	for i, t := range sl.Tiles {
		tn := tileNumElements[t]
		if idx < ci || idx >= ci+tn {
			ci += tn
			continue
		}
		ri := idx - ci
		switch t {
		case TileSpan:
			return sl.TileSplits[i]
		case TileSplit:
			return sl.SubSplits[i][ri]
		case TileFirstLong:
			if ri == 0 {
				return sl.SubSplits[i][0]
			} else {
				return sl.SubSplits[i][1+ri]
			}
		case TileSecondLong:
			if ri == 2 {
				return sl.SubSplits[i][1]
			} else {
				return sl.SubSplits[i][2+ri]
			}
		}
		ci += tn
	}
	return 0
}

// ChildIsCollapsed returns true if the split proportion
// for given child index is 0.  Also checks the overall tile