/// <summary>
/// Writes the appropriate LogiSim XML to the given file
/// </summary>
/// <param name="textWriter"></param>
public void CircuitToXML(XmlTextWriter textWriter)
{
textWriter.WriteStartElement("circuit");
textWriter.WriteAttributeString("name", "main");
foreach (var nameAndElement in circuit.CircuitElementGraph)
{
CircuitSimLib.CircuitElement element = nameAndElement.Value;
if (element is CircuitSimLib.INPUT)
{
InputToXML(textWriter, (CircuitSimLib.INPUT)element);
}
else if (element is CircuitSimLib.OUTPUT)
{
OutputToXML(textWriter, (CircuitSimLib.OUTPUT)element);
}
else if (element is CircuitSimLib.Gate)
{
GateToXML(textWriter, (CircuitSimLib.Gate)element);
}
else
{
Console.Write("invalid type");
}
WiresOutOfElementToXML(textWriter, element);
}
}
/// <summary>
/// Get the location of the input from the element and the index of the input
/// </summary>
/// <param name="element">The element with inputs</param>
/// <param name="inputNo">Index of the input (0-indexed)</param>
/// <returns></returns>
private Point getInpoint(CircuitSimLib.CircuitElement element, int inputNo)
{
Point location = ConvertPointToLogisimPoint(element.OutPoint());
if (element is CircuitSimLib.INPUT || element is CircuitSimLib.OUTPUT)
{
return(location);
}
else if (element is CircuitSimLib.NOT)
{
return(new Point(location.X - 30, location.Y));
}
else
{
int locX = (int)location.X - 50;
int locY = (int)location.Y + (inputNo - 2) * 10;
return(new Point(locX, locY));
}
}
/// <summary>
/// Writes all the outgoing wires of the given element
/// </summary>
/// <param name="textWriter"></param>
/// <param name="element"></param>
private void WiresOutOfElementToXML(XmlTextWriter textWriter, CircuitSimLib.CircuitElement element)
{
foreach (var outputIndexAndNeighbors in element.Outputs)
{
int outputNo = outputIndexAndNeighbors.Key;
Point start = getOutpoint(element, outputNo);
System.Collections.Generic.List <CircuitSimLib.CircuitElement> rightNeighbors = outputIndexAndNeighbors.Value;
foreach (CircuitSimLib.CircuitElement rightNeighbor in rightNeighbors)
{
// Generate the inpoint based on which input we're connected to
System.Collections.Generic.List <int> inputNo;
rightNeighbor.Inputs.TryGetValue(element, out inputNo);
foreach (int index in inputNo)
{
Point end = getInpoint(rightNeighbor, index);
// Create the wires
ConnectWires(textWriter, start, end);
}
}
}
}
/// <summary>
/// Get the location of the output from the element and the index of the output
/// </summary>
/// <param name="element">The element which has outputs</param>
/// <param name="outputNo">The index of the output (0-indexed) </param>
/// <returns></returns>
private Point getOutpoint(CircuitSimLib.CircuitElement element, int outputNo)
{
// Currently just returns the location of the output
return(element.OutPoint(outputNo));
}
