/// <summary>
/// Create a sample graph with edge/edge intersections and edge/group node intersections
/// </summary>
/// <param name="graph"></param>
private void InitializeGraph(IGraph graph)
{
INode[] nodes = new INode[16];
int count = 0;
for (int i = 1; i < 5; i++)
{
nodes[count++] = graph.CreateNode(new PointD(50 + 40 * i, 260));
nodes[count++] = graph.CreateNode(new PointD(50 + 40 * i, 40));
nodes[count++] = graph.CreateNode(new PointD(40, 50 + 40 * i));
nodes[count++] = graph.CreateNode(new PointD(260, 50 + 40 * i));
}
for (int i = 0; i < nodes.Length; i++)
{
graph.AddLabel(nodes[i], "" + i);
}
graph.CreateEdge(nodes[0], nodes[1]);
IPort p1 = graph.AddPort(nodes[0], new PointD(0, 0));
graph.SetRelativePortLocation(p1, new PointD(5, 0));
IPort p2 = graph.AddPort(nodes[1], new PointD(0, 0));
graph.SetRelativePortLocation(p2, new PointD(5, 0));
graph.CreateEdge(p1, p2);
graph.CreateEdge(nodes[5], nodes[4]);
graph.CreateEdge(nodes[2], nodes[3]);
graph.CreateEdge(nodes[7], nodes[6]);
graph.CreateEdge(nodes[2 + 8], nodes[3 + 8]);
graph.CreateEdge(nodes[7 + 8], nodes[6 + 8]);
graph.CreateEdge(nodes[0 + 8], nodes[1 + 8]);
graph.CreateEdge(nodes[5 + 8], nodes[4 + 8]);
INode n1 = graph.CreateNode(new PointD(300, 150));
INode n2 = graph.CreateNode(new PointD(400, 150));
INode n3 = graph.CreateNode(new PointD(500, 150));
graph.CreateEdge(n1, n3);
INode groupNode = graph.CreateGroupNode();
graph.AddLabel(groupNode, "Group Node", InteriorStretchLabelModel.North);
graph.SetParent(n2, groupNode);
graph.AdjustGroupNodeLayout(groupNode);
graphControl.UpdateContentRect();
}
/// <summary>
/// Adds some ports to the given node.
/// </summary>
private static IPort[] CreateSamplePorts(IGraph graph, INode node, bool toEastSide)
{
var model = FreeNodePortLocationModel.Instance;
var x = toEastSide ? 0.9 : 0.1;
var ports = new IPort[4];
ports[0] = graph.AddPort(node, model.CreateParameter(new PointD(x, 0.05)));
ports[1] = graph.AddPort(node, model.CreateParameter(new PointD(x, 0.35)));
ports[2] = graph.AddPort(node, model.CreateParameter(new PointD(x, 0.65)));
ports[3] = graph.AddPort(node, model.CreateParameter(new PointD(x, 0.95)));
return(ports);
}
/// <summary>
/// Creates a node of the specified type.
/// </summary>
/// <remarks>
/// The method will specify the ports that the node should have based on its type.
/// </remarks>
private void CreateNode(IGraph graph, PointD location, LogicGateType type, string label, SizeD?size = null)
{
RectD newBounds = RectD.FromCenter(location, graph.NodeDefaults.Size);
INode node;
if (type >= LogicGateType.Timer)
{
node = graph.CreateNode(RectD.FromCenter(location, (SizeD)size), new ShapeNodeStyle {
Pen = new Pen(Brushes.Black, 2)
});
}
else
{
node = graph.CreateNode(newBounds, new LogicGateNodeStyle {
GateType = type
});
}
graph.AddLabel(node, label, InteriorLabelModel.Center);
var portDescriptors = PortDescriptor.CreatePortDescriptors(type);
// use relative port locations
var model = new FreeNodePortLocationModel();
// add ports for all descriptors using the descriptor as the tag of the port
foreach (var descriptor in portDescriptors)
{
// use the descriptor's location as offset
var portLocationModelParameter = model.CreateParameter(PointD.Origin, new PointD(descriptor.X, descriptor.Y));
graph.AddPort(node, portLocationModelParameter, tag: descriptor);
}
}
/// <summary>
/// Adds ports with different colors to the node.
/// </summary>
private void AddIndividualPorts(IGraph graph, INode node)
{
var portStyle = new ColorPortStyle();
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(0.25, 0)), portStyle, Color.Firebrick);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(0.75, 0)), portStyle, Color.Green);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(0, 0.25)), portStyle, Color.Black);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(0, 0.75)), portStyle, Color.Black);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(1, 0.25)), portStyle, Color.RoyalBlue);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(1, 0.75)), portStyle, Color.Orange);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(0.25, 1)), portStyle, Color.Purple);
graph.AddPort(node, FreeNodePortLocationModel.Instance.CreateParameter(new PointD(0.75, 1)), portStyle, Color.Purple);
}
/// <summary>
/// Copy the ports from a provided node of the original input graph to a node of the resulting multi-page graph view.
/// </summary>
protected void CopyPorts(IGraph pageView, Node layoutNode, INode viewNode, INode modelNode)
{
foreach (IPort port in modelNode.Ports)
{
IPort viewPort = pageView.AddPort(viewNode, (IPortLocationModelParameter)port.LocationParameter.Clone());
if (port.Style != null)
{
pageView.SetStyle(viewPort, (IPortStyle)port.Style.Clone());
}
modelToViewPort[port] = viewPort;
}
}
private void CreateSampleGraph()
{
IGraph graph = graphControl.Graph;
CreateNode(graph, 100, 100, 80, 30, Colors.Firebrick, "No Edge");
CreateNode(graph, 350, 100, 80, 30, Colors.Green, "Green Only");
CreateNode(graph, 100, 200, 80, 30, Colors.Green, "Green Only");
CreateNode(graph, 350, 200, 80, 30, Colors.Firebrick, "No Edge");
// The blue nodes have predefined ports
var portStyle = new ColorPortStyle();
var blue1 = CreateNode(graph, 100, 300, 80, 30, Colors.RoyalBlue, "One Port");
graph.AddPort(blue1, blue1.Layout.GetCenter(), portStyle).Tag = Colors.Black;
var blue2 = CreateNode(graph, 350, 300, 100, 100, Colors.RoyalBlue, "Many Ports");
var portCandidateProvider = PortCandidateProviders.FromShapeGeometry(blue2, 0, 0.25, 0.5,
0.75);
portCandidateProvider.Style = portStyle;
portCandidateProvider.Tag = Colors.Black;
var candidates = portCandidateProvider.GetSourcePortCandidates(graphControl.InputModeContext);
foreach (IPortCandidate portCandidate in candidates)
{
if (portCandidate.Validity != PortCandidateValidity.Dynamic)
{
portCandidate.CreatePort(graphControl.InputModeContext);
}
}
// The orange node
CreateNode(graph, 100, 400, 100, 100, Colors.Orange, "Dynamic Ports");
INode n = CreateNode(graph, 100, 540, 100, 100, Colors.Purple, "Individual\nPort Constraints");
AddIndividualPorts(graph, n);
n = CreateNode(graph, 350, 540, 100, 100, Colors.Purple, "Individual\nPort Constraints");
AddIndividualPorts(graph, n);
}