private void CleanupOldPorts()
{
//clear all the inputs but the first one
//which is the family instance
//first kill all the connectors
for (int i = 1; i < InPortData.Count; i++)
{
dynPort p = InPorts[i];
//must remove the connectors iteratively
//do not use a foreach here!
while (p.Connectors.Count > 0)
{
dynConnector c = p.Connectors[p.Connectors.Count - 1] as dynConnector;
c.Kill();
}
}
//then remove all the ports
while (InPorts.Count > 1)
{
InPorts.RemoveAt(InPorts.Count - 1);
InPortData.RemoveAt(InPortData.Count - 1);
}
while (gridLeft.RowDefinitions.Count > 1)
{
//remove the port from the children list
gridLeft.Children.RemoveAt(gridLeft.RowDefinitions.Count - 1);
gridLeft.RowDefinitions.RemoveAt(gridLeft.RowDefinitions.Count - 1);
}
}
void OnMouseLeftButtonDown(object sender, System.Windows.Input.MouseEventArgs e)
{
//Keyboard.Focus(this);
hitResultsList.Clear();
TestClick(e.GetPosition(workBench));
#region test for a port
dynPort p = null;
if (hitResultsList.Count > 0)
{
foreach (DependencyObject depObj in hitResultsList)
{
//traverse the tree through all the
//hit elements to see if you get a port
p = ElementClicked(depObj, typeof(dynPort)) as dynPort;
if (p != null)
{
break;
}
}
}
if (p != null)
{
if (!isConnecting)
{
//test if port already has a connection if so grab it
//and begin connecting to somewhere else
//don't allow the grabbing of the start connector
if (p.Connectors.Count > 0 && p.Connectors[0].Start != p)
{
activeConnector = p.Connectors[0];
activeConnector.Disconnect(p);
isConnecting = true;
workBench.isConnecting = true;
}
else
{
try
{
//you've begun creating a connector
dynConnector c = new dynConnector(p, workBench, e.GetPosition(workBench));
activeConnector = c;
isConnecting = true;
workBench.isConnecting = true;
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
}
else
{
//attempt a connection between the port
//and the connector
if (!activeConnector.Connect(p))
{
activeConnector.Kill();
isConnecting = false;
workBench.isConnecting = false;
activeConnector = null;
}
else
{
//you've already started connecting
//now you're going to stop
isConnecting = false;
workBench.isConnecting = false;
activeConnector = null;
}
}
//set the handled flag so that the element doesn't get dragged
e.Handled = true;
}
else
{
//if you click on the canvas and you're connecting
//then drop the connector, otherwise do nothing
if (activeConnector != null)
{
activeConnector.Kill();
isConnecting = false;
workBench.isConnecting = false;
activeConnector = null;
}
}
#endregion
#region test for canvas
hitResultsList.Clear();
TestClick(e.GetPosition(workBench));
DragCanvas dc = null;
if (hitResultsList.Count > 0)
{
foreach (DependencyObject depObj in hitResultsList)
{
//traverse the tree through all the
//hit elements to see if you get a port
dc = ElementClicked(depObj, typeof(DragCanvas)) as DragCanvas;
if (dc != null)
{
Debug.WriteLine("Canvas clicked");
ClearSelection();
break;
}
}
}
#endregion
#region test for dyn element
hitResultsList.Clear();
TestClick(e.GetPosition(workBench));
dynElement element = null;
if (hitResultsList.Count > 0)
{
foreach (DependencyObject depObj in hitResultsList)
{
//traverse the tree through all the
//hit elements to see if you get an element
element = ElementClicked(depObj, typeof(dynElement)) as dynElement;
if (element != null)
{
SelectElement(element);
break;
}
}
}
#endregion
}
/// <summary>
/// Add a dynPort element to this control.
/// </summary>
/// <param name="isInput">Is the port an input?</param>
/// <param name="index">The index of the port in the port list.</param>
public void AddPort(object el, PortType portType, string name, int index)
{
dynPort p = new dynPort(index);
//create a text block for the name of the port
TextBlock tb = new TextBlock();
tb.VerticalAlignment = VerticalAlignment.Center;
tb.FontSize = 12;
tb.FontWeight = FontWeights.Normal;
tb.Foreground = new SolidColorBrush(Colors.Black);
tb.Text = name;
//set the z order to the back
//Canvas.SetZIndex(p, 1);
if (portType == PortType.INPUT)
{
tb.HorizontalAlignment = HorizontalAlignment.Left;
p.PortType = PortType.INPUT;
inPorts.Add(p);
gridLeft.Children.Add(p);
Grid.SetColumn(p, 0);
Grid.SetRow(p, index);
//portNamesLeft.Children.Add(tb);
gridLeft.Children.Add(tb);
Grid.SetColumn(tb, 1);
Grid.SetRow(tb, index);
}
else if (portType == PortType.OUTPUT)
{
tb.HorizontalAlignment = HorizontalAlignment.Right;
p.PortType = PortType.OUTPUT;
outPorts.Add(p);
gridRight.Children.Add(p);
Grid.SetColumn(p, 1);
Grid.SetRow(p, index);
//portNamesRight.Children.Add(tb);
gridRight.Children.Add(tb);
Grid.SetColumn(tb, 0);
Grid.SetRow(tb, index);
}
//else if (portType == PortType.STATE)
//{
// tb.HorizontalAlignment = HorizontalAlignment.Center;
// p.PortType = PortType.STATE;
// statePorts.Add(p);
// gridBottom.Children.Add(p);
// Grid.SetColumn(p, index);
// Grid.SetRow(p, 0);
// portNamesBottom.Children.Add(tb);
// Grid.SetColumn(tb, index);
// Grid.SetRow(tb, 0);
//}
p.Owner = this;
//register listeners on the port
p.PortConnected += new PortConnectedHandler(p_PortConnected);
p.PortDisconnected += new PortConnectedHandler(p_PortDisconnected);
}
