| 716 | } |
| 717 | |
| 718 | func (sl *Splits) positionSplits() { |
| 719 | if sl.NumChildren() <= 1 { |
| 720 | return |
| 721 | } |
| 722 | if sl.Parts != nil { |
| 723 | sl.Parts.Geom.Size = sl.Geom.Size // inherit: allows bbox to include handle |
| 724 | } |
| 725 | sz := &sl.Geom.Size |
| 726 | dim := sl.Styles.Direction.Dim() |
| 727 | odim := dim.Other() |
| 728 | csz := sz.Alloc.Content |
| 729 | cszd := csz.Dim(dim) |
| 730 | cszo := csz.Dim(odim) |
| 731 | gap := sl.Styles.Gap.Dots().Floor() |
| 732 | gapd := gap.Dim(dim) |
| 733 | gapo := gap.Dim(odim) |
| 734 | |
| 735 | hand := sl.Parts.Child(0).(*Handle) |
| 736 | hwd := hand.Geom.Size.Actual.Total.Dim(dim) |
| 737 | hht := hand.Geom.Size.Actual.Total.Dim(odim) |
| 738 | cszd -= float32(len(sl.TileSplits)-1) * (hwd + gapd) |
| 739 | hwdg := hwd + 0.5*gapd |
| 740 | |
| 741 | setChildPos := func(idx int, dpos, opos float32) { |
| 742 | cwb := AsWidget(sl.Child(idx)) |
| 743 | cwb.Geom.RelPos.SetDim(dim, dpos) |
| 744 | cwb.Geom.RelPos.SetDim(odim, opos) |
| 745 | } |
| 746 | setHandlePos := func(idx int, dpos, opos, lpos, mn, mx float32) { |
| 747 | hl := sl.Parts.Child(idx).(*Handle) |
| 748 | hl.Geom.RelPos.SetDim(dim, dpos) |
| 749 | hl.Geom.RelPos.SetDim(odim, opos) |
| 750 | hl.Pos = lpos |
| 751 | hl.Min = mn |
| 752 | hl.Max = mx |
| 753 | } |
| 754 | |
| 755 | tpos := float32(0) // tile position |
| 756 | ci := 0 |
| 757 | nt := len(sl.Tiles) |
| 758 | hi := nt - 1 // extra handles |
| 759 | |
| 760 | for i, t := range sl.Tiles { |
| 761 | szt := math32.Round(sl.TileSplits[i] * cszd) // tile size, main axis |
| 762 | szcs := cszo - hwd - gapo // cross axis spilt |
| 763 | szs := szt - hwd - gapd |
| 764 | tn := tileNumElements[t] |
| 765 | if i > 0 { |
| 766 | setHandlePos(i-1, tpos-hwdg, .5*(cszo-hht), tpos, 0, cszd) |
| 767 | } |
| 768 | switch t { |
| 769 | case TileSpan: |
| 770 | setChildPos(ci, tpos, 0) |
| 771 | case TileSplit: |
| 772 | fcht := math32.Round(szcs * sl.SubSplits[i][0]) |
| 773 | setHandlePos(hi, tpos+.5*(szt-hht), fcht+0.5*gapo, fcht, 0, szcs) |
| 774 | hi++ |
| 775 | setChildPos(ci, tpos, 0) |