/// <summary>
/// Performs the actual layout algorithm.
/// </summary>
/// <param name="graph">The object containing the graph data</param>
/// <param name="rootNode">Root node</param>
protected override void PerformLayout(GraphMapData graph, INode rootNode)
{
// this ensures that the end result will remain the same across multiple runs
// because each node will have the same starting position
new GridLayout().CalculateLayout(graph);
System.Diagnostics.Debug.WriteLine("");
foreach (Delegate d in ContextMenuManager.Instance.GetContextMenuOpeningInvocationList())
{
System.Diagnostics.Debug.WriteLine((d.Target as GraphComponents).Scope);
}
// Create a GraphComponents instance that is a partitioned
// representation of the original graph. Each node in this
// graph is a partition node.
GraphComponents connectedGraphComponents = GraphManager.Instance.GetConnectedComponents(GraphManager.Instance.DefaultGraphComponentsInstance.Scope);
IEnumerable<INodeShape> connectedComponents = connectedGraphComponents.GetNodeViewModels();
System.Diagnostics.Debug.WriteLine("");
foreach (Delegate d in ContextMenuManager.Instance.GetContextMenuOpeningInvocationList())
{
System.Diagnostics.Debug.WriteLine((d.Target as GraphComponents).Scope);
}
foreach (PartitionNode connectedComponent in connectedComponents)
{
using (GraphComponents connectedGraph = connectedComponent.GetGraph())
{
LayoutByClusters(graph, connectedGraph);
}
}
// Layout the overall graph
GraphMapData connectedGraphMapData = GetClusteredGraph(graph, connectedGraphComponents);
IDictionary<string, Point> originalPositions = GetOriginalPositions(connectedGraphMapData);
GridLayout gridLayout = new GridLayout();
gridLayout.CalculateLayout(connectedGraphMapData);
ApplyOffsetToSubGraphs(graph, connectedGraphComponents, originalPositions, connectedGraphMapData);
connectedGraphComponents.Dispose();
System.Diagnostics.Debug.WriteLine("");
foreach (Delegate d in ContextMenuManager.Instance.GetContextMenuOpeningInvocationList())
{
System.Diagnostics.Debug.WriteLine((d.Target as GraphComponents).Scope);
}
}
/// <summary>
/// Instantiates an appropriate layout instance
/// </summary>
/// <param name="isAttributeCluster">Indicates whether we have attribute similarity clusters or not</param>
/// <returns>a new, appropriate, LayoutBase instance</returns>
private static AsynchronousLayoutBase GetClusterLayout(bool isAttributeCluster)
{
AsynchronousLayoutBase clusterLayout;
// Check if our clusters are based on attribute similarity
if (isAttributeCluster)
{
clusterLayout = new GridLayout();
}
else
{
clusterLayout = new FRLayout();
}
return clusterLayout;
}