public void TestConnections()
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel();
nodeA.Outputs.Add(nodeAOutput);
NodeInputViewModel nodeBInput = new NodeInputViewModel();
NodeOutputViewModel nodeBOutput = new NodeOutputViewModel();
NodeViewModel nodeB = new NodeViewModel
{
CanBeRemovedByUser = false,
IsSelected = true
};
nodeB.Inputs.Add(nodeBInput);
nodeB.Outputs.Add(nodeBOutput);
NodeInputViewModel nodeCInput = new NodeInputViewModel
{
MaxConnections = 2
};
NodeViewModel nodeC = new NodeViewModel
{
IsSelected = true
};
nodeC.Inputs.Add(nodeCInput);
NodeViewModel nodeD = new NodeViewModel
{
IsSelected = true
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC, nodeD }
};
Assert.IsTrue(nodeBInput.Connections.Count == 0);
var conAB = network.ConnectionFactory(nodeBInput, nodeAOutput);
var conBC = network.ConnectionFactory(nodeCInput, nodeBOutput);
network.Connections.Add(conAB);
network.Connections.Add(conBC);
Assert.IsTrue(Enumerable.SequenceEqual(nodeBInput.Connections.Items, new[] { conAB }));
network.Connections.Remove(conAB);
Assert.IsTrue(nodeBInput.Connections.Count == 0);
var conAC = network.ConnectionFactory(nodeCInput, nodeAOutput);
network.Connections.Add(conAC);
Assert.IsTrue(Enumerable.SequenceEqual(nodeCInput.Connections.Items, new[] { conBC, conAC }));
}
public void TestConnections()
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel
{
Outputs = { nodeAOutput }
};
NodeInputViewModel nodeBInput = new NodeInputViewModel();
NodeViewModel nodeB = new NodeViewModel
{
Inputs = { nodeBInput }
};
NodeInputViewModel nodeCInput = new NodeInputViewModel();
NodeViewModel nodeC = new NodeViewModel
{
Inputs = { nodeCInput }
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC }
};
Assert.AreEqual(0, nodeAOutput.Connections.Count);
var conAB = network.ConnectionFactory(nodeBInput, nodeAOutput);
network.Connections.Add(conAB);
Assert.IsTrue(nodeAOutput.Connections.SequenceEqual(new[]
{
conAB
}));
var conAC = network.ConnectionFactory(nodeCInput, nodeAOutput);
network.Connections.Add(conAC);
Assert.IsTrue(nodeAOutput.Connections.SequenceEqual(new []
{
conAB, conAC
}));
network.Connections.Remove(conAB);
Assert.IsTrue(nodeAOutput.Connections.SequenceEqual(new[]
{
conAC
}));
network.Connections.Remove(conAC);
Assert.AreEqual(0, nodeAOutput.Connections.Count);
}
public void TestCutLine()
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel();
nodeA.Outputs.Add(nodeAOutput);
NodeInputViewModel nodeBInput = new NodeInputViewModel();
NodeOutputViewModel nodeBOutput = new NodeOutputViewModel();
NodeViewModel nodeB = new NodeViewModel
{
CanBeRemovedByUser = false,
IsSelected = true
};
nodeB.Inputs.Add(nodeBInput);
nodeB.Outputs.Add(nodeBOutput);
NodeInputViewModel nodeCInput = new NodeInputViewModel();
NodeViewModel nodeC = new NodeViewModel
{
IsSelected = true
};
nodeC.Inputs.Add(nodeCInput);
NodeViewModel nodeD = new NodeViewModel
{
IsSelected = true
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC, nodeD }
};
var conAB = network.ConnectionFactory(nodeBInput, nodeAOutput);
var conBC = network.ConnectionFactory(nodeCInput, nodeBOutput);
network.Connections.Add(conAB);
network.Connections.Add(conBC);
network.StartCut();
network.CutLine.IntersectingConnections.Add(conAB);
network.FinishCut();
Assert.IsTrue(network.Connections.Items.SequenceEqual(new [] { conBC }));
Assert.IsFalse(network.CutLine.IsVisible);
}
public void TestValidateAfterConnectionsAllUpdated()
{
NodeInputViewModel input1 = new NodeInputViewModel();
NodeOutputViewModel output1 = new NodeOutputViewModel();
NodeViewModel node1 = new NodeViewModel
{
Inputs = { input1 },
Outputs = { output1 }
};
NodeInputViewModel input2 = new NodeInputViewModel();
NodeOutputViewModel output2 = new NodeOutputViewModel();
NodeViewModel node2 = new NodeViewModel
{
Inputs = { input2 },
Outputs = { output2 }
};
NetworkViewModel network = new NetworkViewModel();
network.Validator = n =>
{
if (GraphAlgorithms.FindLoops(network).Any())
{
return(new NetworkValidationResult(false, false, null));
}
return(new NetworkValidationResult(true, true, null));
};
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn1 = network.ConnectionFactory(input1, output2);
network.Connections.Add(conn1);
Assert.IsTrue(network.LatestValidation.IsValid);
var conn2 = network.ConnectionFactory(input2, output1);
network.Connections.Add(conn2);
Assert.IsFalse(network.LatestValidation.IsValid);
network.Connections.Remove(conn1);
Assert.IsTrue(network.LatestValidation.IsValid);
}
public void TestHideEditorIfConnected()
{
TestableOutput output = new TestableOutput();
TestableInput input = new TestableInput();
var outputNode = new NodeViewModel();
outputNode.Outputs.Add(output);
var inputNode = new NodeViewModel();
inputNode.Inputs.Add(input);
NetworkViewModel network = new NetworkViewModel
{
Nodes = { outputNode, inputNode }
};
input.HideEditorIfConnected = true;
Assert.IsTrue(input.IsEditorVisible);
network.Connections.Add(network.ConnectionFactory(input, output));
Assert.IsFalse(input.IsEditorVisible);
}
public void TestHideEditorIfConnected()
{
TestableOutput output = new TestableOutput();
TestableInput input = new TestableInput();
NetworkViewModel network = new NetworkViewModel
{
Nodes =
{
new NodeViewModel
{
Outputs ={ output }
},
new NodeViewModel
{
Inputs ={ input }
}
}
};
input.HideEditorIfConnected = true;
Assert.IsTrue(input.IsEditorVisible);
network.Connections.Add(network.ConnectionFactory(input, output));
Assert.IsFalse(input.IsEditorVisible);
}
public void TestListInputDisconnect()
{
using (TestUtils.WithScheduler(ImmediateScheduler.Instance))
{
var input1 = new ValueListNodeInputViewModel <string>();
NodeViewModel node1 = new NodeViewModel
{
Inputs = { input1 }
};
var output2 = new ValueNodeOutputViewModel <string>
{
Value = Observable.Return("Test")
};
NodeViewModel node2 = new NodeViewModel
{
Outputs = { output2 }
};
NetworkViewModel network = new NetworkViewModel();
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn1 = network.ConnectionFactory(input1, output2);
network.Connections.Add(conn1);
CollectionAssert.AreEqual(new[] { "Test" }, input1.Values.ToArray());
network.Connections.Remove(conn1);
CollectionAssert.AreEqual(new string[0], input1.Values.ToArray());
}
}
public void TestAddConnectionShouldUpdateInputAndOutputConnLists()
{
NodeOutputViewModel output = new NodeOutputViewModel();
NodeViewModel node1 = new NodeViewModel();
node1.Outputs.Add(output);
NodeInputViewModel input = new NodeInputViewModel();
NodeViewModel node2 = new NodeViewModel();
node2.Inputs.Add(input);
NetworkViewModel network = new NetworkViewModel();
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn = network.ConnectionFactory(input, output);
network.Connections.Add(conn);
CollectionAssert.AreEqual(new [] { conn }, input.Connections.Items.AsArray());
CollectionAssert.AreEqual(new[] { conn }, output.Connections.Items.AsArray());
network.Connections.Clear();
CollectionAssert.AreEqual(new ConnectionViewModel[0], input.Connections.Items.AsArray());
CollectionAssert.AreEqual(new ConnectionViewModel[0], output.Connections.Items.AsArray());
}
private void GenerateConnections(object sender, RoutedEventArgs e)
{
var connections = _network.Nodes.Zip(_network.Nodes.Skip(1),
(node1, node2) => _network.ConnectionFactory(node2.Inputs[0], node1.Outputs[0]));
_network.Connections.AddRange(connections);
}
public void TestListInputDisconnect()
{
var input1 = new ValueListNodeInputViewModel <string>();
NodeViewModel node1 = new NodeViewModel();
node1.Inputs.Add(input1);
var output2 = new ValueNodeOutputViewModel <string>
{
Value = Observable.Return("Test")
};
NodeViewModel node2 = new NodeViewModel();
node2.Outputs.Add(output2);
NetworkViewModel network = new NetworkViewModel();
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn1 = network.ConnectionFactory(input1, output2);
network.Connections.Add(conn1);
CollectionAssert.AreEqual(new[] { "Test" }, input1.Values.Items.AsArray());
network.Connections.Remove(conn1);
CollectionAssert.AreEqual(new string[0], input1.Values.Items.AsArray());
}
public void TestDeleteOutputShouldRemoveConnections()
{
NodeOutputViewModel output = new NodeOutputViewModel();
NodeViewModel node1 = new NodeViewModel();
node1.Outputs.Add(output);
NodeInputViewModel input = new NodeInputViewModel();
NodeViewModel node2 = new NodeViewModel();
node2.Inputs.Add(input);
NetworkViewModel network = new NetworkViewModel();
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn = network.ConnectionFactory(input, output);
network.Connections.Add(conn);
Assert.IsTrue(network.Connections.Items.Contains(conn));
node1.Outputs.Remove(output);
Assert.IsFalse(network.Connections.Items.Contains(conn));
node1.Outputs.Add(output);
network.Connections.Add(conn);
Assert.IsTrue(network.Connections.Items.Contains(conn));
node1.Outputs.Clear();
Assert.IsFalse(network.Connections.Items.Contains(conn));
}
public void TestDeleteSelectedNodes()
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel();
nodeA.Outputs.Add(nodeAOutput);
NodeInputViewModel nodeBInput = new NodeInputViewModel();
NodeOutputViewModel nodeBOutput = new NodeOutputViewModel();
NodeViewModel nodeB = new NodeViewModel
{
CanBeRemovedByUser = false,
IsSelected = true,
};
nodeB.Inputs.Add(nodeBInput);
nodeB.Outputs.Add(nodeBOutput);
NodeInputViewModel nodeCInput = new NodeInputViewModel();
NodeViewModel nodeC = new NodeViewModel
{
IsSelected = true
};
nodeC.Inputs.Add(nodeCInput);
NodeViewModel nodeD = new NodeViewModel
{
IsSelected = true
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC, nodeD }
};
network.Connections.Add(network.ConnectionFactory(nodeBInput, nodeAOutput));
network.Connections.Add(network.ConnectionFactory(nodeCInput, nodeBOutput));
Observable.Return(Unit.Default).InvokeCommand(network.DeleteSelectedNodes);
Assert.AreEqual(1, network.Connections.Count);
Assert.IsTrue(network.Nodes.SequenceEqual(new [] { nodeA, nodeB }));
}
public void TestDeleteNodeShouldRemoveConnections()
{
NodeInputViewModel input1 = new NodeInputViewModel();
NodeOutputViewModel output1 = new NodeOutputViewModel();
NodeViewModel node1 = new NodeViewModel
{
Inputs = { input1 },
Outputs = { output1 }
};
NodeInputViewModel input2 = new NodeInputViewModel();
NodeOutputViewModel output2 = new NodeOutputViewModel();
NodeViewModel node2 = new NodeViewModel
{
Inputs = { input2 },
Outputs = { output2 }
};
NetworkViewModel network = new NetworkViewModel();
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn1 = network.ConnectionFactory(input1, output2);
var conn2 = network.ConnectionFactory(input2, output1);
network.Connections.Add(conn1);
network.Connections.Add(conn2);
Assert.IsTrue(network.Connections.Contains(conn1));
Assert.IsTrue(network.Connections.Contains(conn2));
network.Nodes.Remove(node1);
Assert.IsFalse(network.Connections.Contains(conn1));
Assert.IsFalse(network.Connections.Contains(conn2));
network.Nodes.AddRange(new [] { node1, node2 });
network.Connections.AddRange(new[] { conn1, conn2 });
Assert.IsTrue(network.Connections.Contains(conn1));
Assert.IsTrue(network.Connections.Contains(conn2));
network.Nodes.Clear();
Assert.IsFalse(network.Connections.Contains(conn1));
Assert.IsFalse(network.Connections.Contains(conn2));
}
public void TestNodeCollapse()
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel
{
Outputs = { nodeAOutput }
};
NodeInputViewModel nodeBInput = new NodeInputViewModel();
NodeInputViewModel nodeBInput2 = new NodeInputViewModel();
NodeOutputViewModel nodeBOutput = new NodeOutputViewModel();
NodeOutputViewModel nodeBOutput2 = new NodeOutputViewModel();
NodeViewModel nodeB = new NodeViewModel
{
Inputs = { nodeBInput, nodeBInput2 },
Outputs = { nodeBOutput, nodeBOutput2 }
};
NodeInputViewModel nodeCInput = new NodeInputViewModel();
NodeViewModel nodeC = new NodeViewModel
{
Inputs = { nodeCInput }
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC }
};
network.Connections.Add(network.ConnectionFactory(nodeBInput, nodeAOutput));
network.Connections.Add(network.ConnectionFactory(nodeCInput, nodeBOutput));
nodeB.IsCollapsed = true;
Assert.IsTrue(nodeB.VisibleInputs.SequenceEqual(new [] { nodeBInput }));
Assert.IsTrue(nodeB.VisibleOutputs.SequenceEqual(new[] { nodeBOutput }));
}
public void TestValuePropagation()
{
//Setup
var scheduler = new TestScheduler();
var nodeA = new NodeViewModel();
Subject <int> sourceA = new Subject <int>();
var outputA = new ValueNodeOutputViewModel <int>
{
Value = sourceA
};
nodeA.Outputs.Add(outputA);
var nodeB = new NodeViewModel();
var inputB = new ValueListNodeInputViewModel <int>();
nodeB.Inputs.Add(inputB);
NetworkViewModel network = new NetworkViewModel();
network.Nodes.AddRange(new [] { nodeA, nodeB });
network.Connections.Add(network.ConnectionFactory(inputB, outputA));
//Define actions
scheduler.Schedule(TimeSpan.FromTicks(10), () => sourceA.OnNext(1));
scheduler.Schedule(TimeSpan.FromTicks(20), () => sourceA.OnNext(0));
scheduler.Schedule(TimeSpan.FromTicks(30), () => sourceA.OnNext(1));
scheduler.Schedule(TimeSpan.FromTicks(40), () => sourceA.OnNext(0));
scheduler.Schedule(TimeSpan.FromTicks(50), () => sourceA.OnNext(2));
var actual = scheduler.Start(() => inputB.Values.Connect().QueryWhenChanged(), created: 0, subscribed: 0, disposed: 100);
//Assert
Assert.AreEqual(actual.Messages.Count, 6);
Assert.AreEqual(actual.Messages[0].Time, 1);
Assert.IsTrue(actual.Messages[0].Value.Value.SequenceEqual(new[] { 0 }));
Assert.AreEqual(actual.Messages[1].Time, 10);
Assert.IsTrue(actual.Messages[1].Value.Value.SequenceEqual(new[] { 1 }));
Assert.AreEqual(actual.Messages[2].Time, 20);
Assert.IsTrue(actual.Messages[2].Value.Value.SequenceEqual(new[] { 0 }));
Assert.AreEqual(actual.Messages[3].Time, 30);
Assert.IsTrue(actual.Messages[3].Value.Value.SequenceEqual(new[] { 1 }));
Assert.AreEqual(actual.Messages[4].Time, 40);
Assert.IsTrue(actual.Messages[4].Value.Value.SequenceEqual(new[] { 0 }));
Assert.AreEqual(actual.Messages[5].Time, 50);
Assert.IsTrue(actual.Messages[5].Value.Value.SequenceEqual(new[] { 2 }));
}
public void TestNestedObserving()
{
//Setup
var scheduler = new TestScheduler();
NodeInputViewModel input1 = new NodeInputViewModel();
NodeOutputViewModel output1 = new NodeOutputViewModel();
NodeViewModel node1 = new NodeViewModel
{
Inputs = { input1 },
Outputs = { output1 }
};
NodeInputViewModel input2 = new NodeInputViewModel();
NodeOutputViewModel output2 = new NodeOutputViewModel();
NodeViewModel node2 = new NodeViewModel
{
Inputs = { input2 },
Outputs = { output2 }
};
NetworkViewModel network = new NetworkViewModel();
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn1 = network.ConnectionFactory(input1, output2);
network.Connections.Add(conn1);
var obs = network.ConnectionsUpdated;
//Define actions
scheduler.Schedule(TimeSpan.FromTicks(10), () => network.Connections.Remove(conn1));
var actual = scheduler.Start(() => obs, created: 0, subscribed: 0, disposed: 100); // But subscribe to it here
//Assert
var expected = new[]
{
ReactiveTest.OnNext(10, Unit.Default)
};
ReactiveAssert.AreElementsEqual(expected, actual.Messages);
}
public void TestConnectionsUpdatedAfterPreexistingConnectionRemoved()
{
//Setup
var scheduler = new TestScheduler();
NodeInputViewModel input1 = new NodeInputViewModel();
NodeOutputViewModel output1 = new NodeOutputViewModel();
NodeViewModel node1 = new NodeViewModel();
node1.Inputs.Add(input1);
node1.Outputs.Add(output1);
NodeInputViewModel input2 = new NodeInputViewModel();
NodeOutputViewModel output2 = new NodeOutputViewModel();
NodeViewModel node2 = new NodeViewModel();
node2.Inputs.Add(input2);
node2.Outputs.Add(output2);
NetworkViewModel network = new NetworkViewModel();
var observable = network.ConnectionsUpdated; // Create observable before nodes/connections are added
network.Nodes.Add(node1);
network.Nodes.Add(node2);
var conn1 = network.ConnectionFactory(input1, output2);
network.Connections.Add(conn1);
//Define actions
scheduler.Schedule(TimeSpan.FromTicks(10), () => network.Connections.Remove(conn1));
var actual = scheduler.Start(() => observable, created: 0, subscribed: 0, disposed: 100); // But subscribe to it here
//Assert
var expected = new[]
{
ReactiveTest.OnNext(10, Unit.Default)
};
ReactiveAssert.AreElementsEqual(expected, actual.Messages);
}
public void TestCollapseWithGroups()
{
NodeViewModel node = new NodeViewModel();
EndpointGroup groupA = new EndpointGroup {
Name = "Group A"
};
EndpointGroup groupB = new EndpointGroup {
Name = "Group B"
};
EndpointGroup groupC = new EndpointGroup(groupA)
{
Name = "Group C"
};
EndpointGroup groupD = new EndpointGroup(groupB)
{
Name = "Group D"
};
NodeInputViewModel inputC = new NodeInputViewModel {
Group = groupC, Name = "Input C"
};
NodeOutputViewModel outputC = new NodeOutputViewModel {
Group = groupC, Name = "Output C"
};
NodeInputViewModel inputD = new NodeInputViewModel {
Group = groupD, Name = "Input D"
};
NodeOutputViewModel outputD = new NodeOutputViewModel {
Group = groupD, Name = "Output D"
};
node.Inputs.Add(inputC);
node.Inputs.Add(inputD);
node.Outputs.Add(outputC);
node.Outputs.Add(outputD);
var network = new NetworkViewModel();
network.Nodes.Add(node);
network.Connections.Add(network.ConnectionFactory(inputC, new NodeOutputViewModel()));
node.IsCollapsed = true;
Assert.IsTrue(node.VisibleInputs.Count == 0);
Assert.IsTrue(node.VisibleOutputs.Count == 0);
Assert.IsTrue(node.VisibleEndpointGroups.Count == 1);
EndpointGroupViewModel groupAViewModel = node.VisibleEndpointGroups[0];
Assert.AreEqual(groupA, groupAViewModel.Group);
Assert.IsTrue(groupAViewModel.VisibleInputs.Count == 0);
Assert.IsTrue(groupAViewModel.VisibleOutputs.Count == 0);
Assert.IsTrue(groupAViewModel.Children.Count == 1);
EndpointGroupViewModel groupCViewModel = groupAViewModel.Children[0];
Assert.AreEqual(groupC, groupCViewModel.Group);
Assert.IsTrue(groupCViewModel.VisibleInputs.Count == 1);
Assert.AreEqual(inputC, groupCViewModel.VisibleInputs.Items.First());
Assert.IsTrue(groupCViewModel.VisibleOutputs.Count == 0);
}
public void TestNodeCollapse(EndpointVisibility visibility, bool nonCollapsedNonConnectedVisible, bool nonCollapsedConnectedVisible, bool collapsedNonConnectedVisible, bool collapsedConnectedVisible)
{
NodeOutputViewModel nodeAOutput = new NodeOutputViewModel();
NodeViewModel nodeA = new NodeViewModel
{
Outputs = { nodeAOutput }
};
NodeInputViewModel nodeBInput = new NodeInputViewModel {
Visibility = visibility
};
NodeInputViewModel nodeBInput2 = new NodeInputViewModel {
Visibility = visibility
};
NodeOutputViewModel nodeBOutput = new NodeOutputViewModel {
Visibility = visibility
};
NodeOutputViewModel nodeBOutput2 = new NodeOutputViewModel {
Visibility = visibility
};
NodeViewModel nodeB = new NodeViewModel
{
Inputs = { nodeBInput, nodeBInput2 },
Outputs = { nodeBOutput, nodeBOutput2 }
};
NodeInputViewModel nodeCInput = new NodeInputViewModel();
NodeViewModel nodeC = new NodeViewModel
{
Inputs = { nodeCInput }
};
NetworkViewModel network = new NetworkViewModel
{
Nodes = { nodeA, nodeB, nodeC }
};
network.Connections.Add(network.ConnectionFactory(nodeBInput, nodeAOutput));
network.Connections.Add(network.ConnectionFactory(nodeCInput, nodeBOutput));
var expectedInputSeq = Enumerable.Empty <Endpoint>();
var expectedOutputSeq = Enumerable.Empty <Endpoint>();
if (nonCollapsedConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput });
}
if (nonCollapsedNonConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput2 });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput2 });
}
Assert.IsTrue(nodeB.VisibleInputs.SequenceEqual(expectedInputSeq));
Assert.IsTrue(nodeB.VisibleOutputs.SequenceEqual(expectedOutputSeq));
nodeB.IsCollapsed = true;
expectedInputSeq = Enumerable.Empty <Endpoint>();
expectedOutputSeq = Enumerable.Empty <Endpoint>();
if (collapsedConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput });
}
if (collapsedNonConnectedVisible)
{
expectedInputSeq = expectedInputSeq.Concat(new[] { nodeBInput2 });
expectedOutputSeq = expectedOutputSeq.Concat(new[] { nodeBOutput2 });
}
Assert.IsTrue(nodeB.VisibleInputs.SequenceEqual(expectedInputSeq));
Assert.IsTrue(nodeB.VisibleOutputs.SequenceEqual(expectedOutputSeq));
}
/// <summary>
/// Move the specified set of nodes to a new subnetwork, create a new group node that contains this subnet,
/// restore inter- and intra-network connections.
/// </summary>
/// <param name="network">The parent network</param>
/// <param name="nodesToGroup">The nodes to group</param>
/// <returns>Returns the NodeGroupIOBinding that was constructed for this group using the IOBindingFactory.</returns>
public NodeGroupIOBinding MergeIntoGroup(NetworkViewModel network, IEnumerable <NodeViewModel> nodesToGroup)
{
if (!CheckPropertiesValid())
{
throw new InvalidOperationException("All properties must be set before usage");
}
else if (network == null)
{
throw new ArgumentNullException(nameof(network));
}
else if (nodesToGroup == null)
{
throw new ArgumentNullException(nameof(nodesToGroup));
}
var groupNodesSet = nodesToGroup is HashSet <NodeViewModel> set
? set
: new HashSet <NodeViewModel>(nodesToGroup);
// Check if nodesToGroup can be combined into a single group
if (groupNodesSet.Count == 0 || !GraphAlgorithms.IsContinuousSubGraphSet(groupNodesSet))
{
return(null);
}
// Create new empty group
var subnet = SubNetworkFactory();
var groupNode = GroupNodeFactory(subnet);
network.Nodes.Add(groupNode);
var groupEntranceNode = EntranceNodeFactory();
var groupExitNode = ExitNodeFactory();
subnet.Nodes.AddRange(new [] { groupEntranceNode, groupExitNode });
// Map from input on a group member node to group node input
var groupNodeInputs = new Dictionary <NodeInputViewModel, NodeInputViewModel>();
// Map from output on a group member node to group node output
var groupNodeOutputs = new Dictionary <NodeOutputViewModel, NodeOutputViewModel>();
// Move the new nodes to appropriate positions
groupNode.Position = new Point(
groupNodesSet.Average(n => n.Position.X),
groupNodesSet.Average(n => n.Position.Y)
);
double yCoord = groupNodesSet.Average(n => n.Position.Y);
groupEntranceNode.Position = new Point(
groupNodesSet.Min(n => n.Position.X) - 100,
yCoord
);
groupExitNode.Position = new Point(
groupNodesSet.Max(n => n.Position.X) + 100,
yCoord
);
// Setup binding between entrance/exit inputs and outputs
var ioBinding = IOBindingFactory(groupNode, groupEntranceNode, groupExitNode);
// Calculate set of connections to replace
var subnetConnections = new List <ConnectionViewModel>();
var borderInputConnections = new List <ConnectionViewModel>();
var borderOutputConnections = new List <ConnectionViewModel>();
foreach (var con in network.Connections.Items)
{
bool inputIsInSubnet = groupNodesSet.Contains(con.Input.Parent);
bool outputIsInSubnet = groupNodesSet.Contains(con.Output.Parent);
if (inputIsInSubnet && outputIsInSubnet)
{
subnetConnections.Add(con);
}
else if (inputIsInSubnet)
{
borderInputConnections.Add(con);
}
else if (outputIsInSubnet)
{
borderOutputConnections.Add(con);
}
}
// Construct inputs/outputs into/out of the group
foreach (var borderInCon in borderInputConnections)
{
if (!groupNodeInputs.ContainsKey(borderInCon.Input))
{
groupNodeInputs[borderInCon.Input] = ioBinding.AddNewGroupNodeInput(borderInCon.Output);
}
}
foreach (var borderOutCon in borderOutputConnections)
{
if (!groupNodeOutputs.ContainsKey(borderOutCon.Output))
{
groupNodeOutputs[borderOutCon.Output] = ioBinding.AddNewGroupNodeOutput(borderOutCon.Input);
}
}
// Transfer nodes and inner connections to subnet
network.Connections.Edit(l =>
{
l.RemoveMany(subnetConnections);
l.RemoveMany(borderInputConnections);
l.RemoveMany(borderOutputConnections);
});
network.Nodes.RemoveMany(groupNodesSet);
subnet.Nodes.AddRange(groupNodesSet);
subnet.Connections.AddRange(subnetConnections.Select(con => subnet.ConnectionFactory(con.Input, con.Output)));
// Restore connections in/out of group
network.Connections.AddRange(Enumerable.Concat(
borderInputConnections.Select(con => network.ConnectionFactory(groupNodeInputs[con.Input], con.Output)),
borderOutputConnections.Select(con => network.ConnectionFactory(con.Input, groupNodeOutputs[con.Output]))
));
subnet.Connections.AddRange(Enumerable.Concat(
borderInputConnections.Select(con => subnet.ConnectionFactory(con.Input, ioBinding.GetSubnetInlet(groupNodeInputs[con.Input]))),
borderOutputConnections.Select(con => subnet.ConnectionFactory(ioBinding.GetSubnetOutlet(groupNodeOutputs[con.Output]), con.Output))
));
return(ioBinding);
}