/// <summary>
/// Recursively lay out the given clusters using the specified settings for each cluster, or if none is given for a particular
/// cluster then inherit from the cluster's ancestor - or from the specifed defaultSettings.
/// Clusters (other than the root) will be translated (together with their descendants) such that their
/// bottom-left point of their new boundaries are the same as the bottom-left of their old boundaries
/// (i.e. clusters are laid-out in place).
/// </summary>
/// <param name="graph">The graph being operated on.</param>
/// <param name="clusters">The clusters to layout.</param>
/// <param name="clusterSettings">Settings to use for each cluster and its descendents (if none provided for that descendent.</param>
public InitialLayoutByCluster(GeometryGraph graph, IEnumerable<Cluster> clusters,
Func<Cluster, LayoutAlgorithmSettings> clusterSettings) {
ValidateArg.IsNotNull(graph, "graph");
ValidateArg.IsNotNull(clusters, "clusters");
ValidateArg.IsNotNull(clusterSettings, "clusterSettings");
#if TEST_MSAGL
graph.SetDebugIds();
#endif
this.graph = graph;
this.clusters = clusters.ToList();
this.clusterSettings = clusterSettings;
}
/// <summary>
/// Recursively lay out the given clusters using the specified settings for each cluster, or if none is given for a particular
/// cluster then inherit from the cluster's ancestor - or from the specifed defaultSettings.
/// Clusters (other than the root) will be translated (together with their descendants) such that their
/// bottom-left point of their new boundaries are the same as the bottom-left of their old boundaries
/// (i.e. clusters are laid-out in place).
/// </summary>
/// <param name="graph">The graph being operated on.</param>
/// <param name="modifiedNodes">The nodes whose bounds are modified.</param>
/// <param name="addedNodes">Nodes added to the graph - a new initial position will be found for these nodes close to their neighbors</param>
/// <param name="clusterSettings">Settings to use for each cluster.</param>
public Relayout(GeometryGraph graph, IEnumerable<Node> modifiedNodes, IEnumerable<Node> addedNodes,
Func<Cluster, LayoutAlgorithmSettings> clusterSettings) {
ValidateArg.IsNotNull(graph, "graph");
ValidateArg.IsNotNull(clusterSettings, "clusterSettings");
#if TEST_MSAGL
graph.SetDebugIds();
#endif
this.graph = graph;
this.modifiedNodes = modifiedNodes;
this.clusterSettings = clusterSettings;
ancestorsOfModifiedNodes =
new Set<Cluster>(modifiedNodes.SelectMany(v => v.AllClusterAncestors));
if (addedNodes == null) return;
foreach (var v in addedNodes)
CreateOrGetAddedChildrenOfParent(v.ClusterParents.First()).Add(v);
ancestorsOfModifiedNodes.InsertRange(addedNodes.SelectMany(v => v.AllClusterAncestors));
}
