private int CalculateInsertionIndexBasedOnSiblings(LayoutVertexBase vertex,
LayoutVertexBase[] siblingsInLayer, IReadOnlyLayoutVertexLayers layers)
{
var followingSiblingInLayer = siblingsInLayer.FirstOrDefault(i => Precedes(vertex, i));
return(followingSiblingInLayer != null
? layers.GetIndexInLayer(followingSiblingInLayer)
: layers.GetIndexInLayer(siblingsInLayer.Last()) + 1);
}
private LayoutVertexBase GetFollowingParent(IReadOnlyLayoutVertexLayer layer, int index,
IReadOnlyLayoutVertexLayers layers)
{
return(layer.FirstOrDefault(i => layers.GetIndexInLayer(i) > index &&
_properLayoutGraph.GetPrimaryChildren(i).Any(layers.HasLocation)));
}
private IEnumerable <LayoutVertexBase> GetPrimarySiblingsInLayer(
LayoutVertexBase vertex, int layerIndex, IReadOnlyLayoutVertexLayers layers)
{
return(_properLayoutGraph.GetPrimarySiblings(vertex)
.Where(i => layers.HasLocation(i) && layers.GetLayerIndex(i) == layerIndex));
}
