internal void BeginConnection(Guid nodeId, int portIndex, PortType portType)
{
int index = portIndex;
bool isInPort = portType == PortType.INPUT;
NodeModel node = _model.GetModelInternal(nodeId) as NodeModel;
PortModel portModel = isInPort ? node.InPorts[index] : node.OutPorts[index];
// Test if port already has a connection, if so grab it and begin connecting
// to somewhere else (we don't allow the grabbing of the start connector).
if (portModel.Connectors.Count > 0 && portModel.Connectors[0].Start != portModel)
{
// Define the new active connector
var c = new ConnectorViewModel(portModel.Connectors[0].Start);
this.SetActiveConnector(c);
// Disconnect the connector model from its start and end ports
// and remove it from the connectors collection. This will also
// remove the view model.
ConnectorModel connector = portModel.Connectors[0];
if (_model.Connectors.Contains(connector))
{
List<ModelBase> models = new List<ModelBase>();
models.Add(connector);
_model.RecordAndDeleteModels(models);
connector.NotifyConnectedPortsOfDeletion();
}
}
else
{
try
{
// Create a connector view model to begin drawing
var connector = new ConnectorViewModel(portModel);
this.SetActiveConnector(connector);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
}
internal void BeginConnection(Guid nodeId, int portIndex, PortType portType)
{
int index = portIndex;
bool isInPort = portType == PortType.INPUT;
NodeModel node = _model.GetModelInternal(nodeId) as NodeModel;
PortModel portModel = isInPort ? node.InPorts[index] : node.OutPorts[index];
// Test if port already has a connection, if so grab it and begin connecting
// to somewhere else (we don't allow the grabbing of the start connector).
if (portModel.Connectors.Count > 0 && portModel.Connectors[0].Start != portModel)
{
// Define the new active connector
var c = new ConnectorViewModel(portModel.Connectors[0].Start);
this.SetActiveConnector(c);
// Disconnect the connector model from its start and end ports
// and remove it from the connectors collection. This will also
// remove the view model.
ConnectorModel connector = portModel.Connectors[0];
if (_model.Connectors.Contains(connector))
{
List <ModelBase> models = new List <ModelBase>();
models.Add(connector);
_model.RecordAndDeleteModels(models);
connector.NotifyConnectedPortsOfDeletion();
}
}
else
{
try
{
// Create a connector view model to begin drawing
var connector = new ConnectorViewModel(portModel);
this.SetActiveConnector(connector);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
}
internal void BeginShiftReconnections(Guid nodeId, int portIndex, PortType portType)
{
if (portType == PortType.Input)
{
return;
}
NodeModel node = Model.GetModelInternal(nodeId) as NodeModel;
if (node == null)
{
return;
}
PortModel portModel = node.OutPorts[portIndex];
if (portModel.Connectors.Count <= 0)
{
return;
}
// Try to obtain connectors for selected nodes
var selected = portModel.Connectors.Where(x => x.End.Owner.IsSelected).Select(y => y.End);
// If there are no selected nodes, obtain all the associated connectors
if (selected.Count() <= 0)
{
selected = portModel.Connectors.Select(y => y.End);
}
var connectorsAr = new ConnectorViewModel[selected.Count()];
for (int i = 0; i < selected.Count(); i++)
{
var c = new ConnectorViewModel(this, selected.ElementAt(i));
connectorsAr[i] = c;
}
this.SetActiveConnectors(connectorsAr);
return;
}
void Connectors_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (var item in e.NewItems)
{
var viewModel = new ConnectorViewModel(this, item as ConnectorModel);
_connectors.Add(viewModel);
}
break;
case NotifyCollectionChangedAction.Reset:
_connectors.Clear();
break;
case NotifyCollectionChangedAction.Remove:
foreach (var item in e.OldItems)
{
_connectors.Remove(_connectors.First(x => x.ConnectorModel == item));
}
break;
}
}
internal void BeginConnection(Guid nodeId, int portIndex, PortType portType)
{
bool isInPort = portType == PortType.Input;
NodeModel node = Model.GetModelInternal(nodeId) as NodeModel;
if (node == null)
{
return;
}
PortModel portModel = isInPort ? node.InPorts[portIndex] : node.OutPorts[portIndex];
// Test if port already has a connection, if so grab it and begin connecting
// to somewhere else (we don't allow the grabbing of the start connector).
if (portModel.Connectors.Count > 0 && portModel.Connectors[0].Start != portModel)
{
// Define the new active connector
var c = new ConnectorViewModel[] { new ConnectorViewModel(this, portModel.Connectors[0].Start) };
this.SetActiveConnectors(c);
firstStartPort = portModel.Connectors[0].Start;
}
else
{
try
{
// Create an array containing a connector view model to begin drawing
var connectors = new ConnectorViewModel[] { new ConnectorViewModel(this, portModel) };
this.SetActiveConnectors(connectors);
firstStartPort = isInPort ? null : node.OutPorts[portIndex];
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
}
void Connectors_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (var item in e.NewItems)
{
var viewModel = new ConnectorViewModel(this, item as ConnectorModel);
_connectors.Add(viewModel);
}
break;
case NotifyCollectionChangedAction.Reset:
_connectors.Clear();
break;
case NotifyCollectionChangedAction.Remove:
foreach (var item in e.OldItems)
{
_connectors.Remove(_connectors.First(x => x.ConnectorModel == item));
}
break;
}
}
void Connectors_ConnectorAdded(ConnectorModel c)
{
var viewModel = new ConnectorViewModel(this, c);
if (_connectors.All(x => x.ConnectorModel != c))
_connectors.Add(viewModel);
}
private void SetActiveConnector(ConnectorViewModel connector)
{
if (null != connector)
{
System.Diagnostics.Debug.Assert(null == activeConnector);
this.WorkspaceElements.Add(connector);
this.activeConnector = connector;
}
else
{
System.Diagnostics.Debug.Assert(null != activeConnector);
this.WorkspaceElements.Remove(activeConnector);
this.activeConnector = null;
}
this.RaisePropertyChanged("ActiveConnector");
}
void Connectors_ConnectorAdded(ConnectorModel c)
{
var viewModel = new ConnectorViewModel(this, c);
if (_connectors.All(x => x.ConnectorModel != c))
_connectors.Add(viewModel);
}
internal void BeginConnection(Guid nodeId, int portIndex, PortType portType)
{
bool isInPort = portType == PortType.Input;
NodeModel node = Model.GetModelInternal(nodeId) as NodeModel;
if (node == null)
return;
PortModel portModel = isInPort ? node.InPorts[portIndex] : node.OutPorts[portIndex];
// Test if port already has a connection, if so grab it and begin connecting
// to somewhere else (we don't allow the grabbing of the start connector).
if (portModel.Connectors.Count > 0 && portModel.Connectors[0].Start != portModel)
{
// Define the new active connector
var c = new ConnectorViewModel(this, portModel.Connectors[0].Start);
this.SetActiveConnector(c);
}
else
{
try
{
// Create a connector view model to begin drawing
var connector = new ConnectorViewModel(this, portModel);
this.SetActiveConnector(connector);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
}
void Connectors_ConnectorAdded(ConnectorModel c)
{
var viewModel = new ConnectorViewModel(this, c);
_connectors.Add(viewModel);
}
