//Load circuit from an XML file, see section 2.3.3.1 for format
public void LoadCircuit(string filename)
{
ClearCircuit();
bool wasError = false;
try
{
XmlDocument circuitXml = new XmlDocument();
circuitXml.Load(filename);
//Load settings
foreach (var settingElement in circuitXml.GetElementsByTagName("setting").OfType <XmlElement>())
{
try
{
if (settingElement.HasAttribute("key") && settingElement.HasAttribute("value"))
{
switch (settingElement.GetAttribute("key"))
{
case "numberOfBreadboards":
ParentWindow.SetNumberOfBreadboards(int.Parse(settingElement.GetAttribute("value")));
break;
case "simulationSpeed":
SimulationSpeed.Val = double.Parse(settingElement.GetAttribute("value"));
break;
case "positiveRailVoltage":
PositiveRailVoltage = double.Parse(settingElement.GetAttribute("value"));
break;
case "negativeRailVoltage":
NegativeRailVoltage = double.Parse(settingElement.GetAttribute("value"));
break;
}
}
}
catch
{
wasError = true;
}
}
//Load components
foreach (var componentElement in circuitXml.GetElementsByTagName("component").OfType <XmlElement>())
{
try
{
Dictionary <string, string> parameters = new Dictionary <string, string>();
foreach (var attribute in componentElement.Attributes.OfType <XmlAttribute>())
{
parameters[attribute.Name] = attribute.Value;
}
AddComponent(Component.CreateFromParameters(this, parameters));
}
catch
{
wasError = true;
}
}
//Load wires
foreach (var wireElement in circuitXml.GetElementsByTagName("wire").OfType <XmlElement>())
{
try
{
Dictionary <string, string> parameters = new Dictionary <string, string>();
foreach (var attribute in wireElement.Attributes.OfType <XmlAttribute>())
{
parameters[attribute.Name] = attribute.Value;
}
AddWire(Wire.CreateFromParameters(this, parameters));
}
catch
{
wasError = true;
}
}
}
catch
{
wasError = true;
}
if (wasError)
{
MessageBox.Show("An error occurred while loading the file. The file you selected may not be compatible with this version of the Breadboard Simulator," +
" or it may have become corrupted.\r\nAs a result, the circuit may be missing entirely, incomplete or have broken components.", "Failure to open file", MessageBoxButton.OK, MessageBoxImage.Warning);
}
//Rebuild circuit
UpdateWireColours();
}
//Adds a wire to the circuit
public void AddWire(Wire newWire)
{
Wires.Add(newWire);
ParentWindow.DrawArea.Children.Add(newWire);
}
private void Breadboard_MouseUp(object sender, MouseButtonEventArgs e)
{
ParentCircuit.DeselectAll();
if (ParentCircuit.ParentWindow.SelectedTool == "WIRE")
{
if (StartedWire)
{
Point actualCoord = GetHoleCoord(e.GetPosition(this), true);
if (BreadBoardHolePositions.Contains(actualCoord))
{
actualCoord = GetAbsolutePosition(actualCoord);
Orientation o = Util.getBestOrientation(WirePointA, actualCoord);
int length = 0;
if (o == Orientation.Horizontal)
{
length = (int)((actualCoord.X - WirePointA.X) / Constants.ScaleFactor);
}
else
{
length = (int)((actualCoord.Y - WirePointA.Y) / Constants.ScaleFactor);
}
NewWire.Length = length;
NewWire.WireOrientation = o;
NewWire.MakePermanentWire();
StartedWire = false;
ParentCircuit.UpdateWireColours();
ParentCircuit.AddUndoAction(new AddAction(NewWire, ParentCircuit));
}
}
else
{
Point rawCoord = GetHoleCoord(e.GetPosition(this), false);
Point actualCoord = new Point(0, 0);
bool isValid = false;
//We only want to start a new wire if the user clicks on or near a hole
foreach (Point p in BreadBoardHolePositions)
{
double distance = Math.Sqrt(Math.Pow((p.X - rawCoord.X), 2) + Math.Pow((p.Y - rawCoord.Y), 2));
if (distance < 0.4)
{
isValid = true;
actualCoord = p;
break;
}
}
if (isValid)
{
WirePointA = GetAbsolutePosition(actualCoord);
StartedWire = true;
NewWire = new Wire(ParentCircuit, Orientation.Horizontal, 0,
Constants.RandomWireColours[new Random().Next(Constants.RandomWireColours.Length)],
new Point(WirePointA.X + 1, WirePointA.Y + 1));
NewWire.MakeTemporaryWire();
ParentCircuit.AddWire(NewWire);
}
}
}
else if (ParentCircuit.ParentWindow.SelectedTool == "COMPONENT")
{
if (StartedLeadedComponent)
{
Point actualCoord = GetHoleCoord(e.GetPosition(this), true);
if (BreadBoardHolePositions.Contains(actualCoord))
{
actualCoord = GetAbsolutePosition(actualCoord);
Orientation o = Util.getBestOrientation(ComponentPointA, actualCoord);
int length = 0;
if (o == Orientation.Horizontal)
{
length = (int)((actualCoord.X - ComponentPointA.X) / Constants.ScaleFactor);
}
else
{
length = (int)((actualCoord.Y - ComponentPointA.Y) / Constants.ScaleFactor);
}
if (Math.Abs(length) >= NewLeadedComponent.MinLength)
{
NewLeadedComponent.Length = length;
NewLeadedComponent.orientation = o;
NewLeadedComponent.MakePermanent();
ParentCircuit.UpdateNetConnectivity();
StartedLeadedComponent = false;
ParentCircuit.AddUndoAction(new AddAction(NewLeadedComponent, ParentCircuit));
}
}
}
else
{
ComponentData selectedComponentType = ParentCircuit.ParentWindow.GetSelectedComponent();
if (selectedComponentType != null)
{
Point rawCoord = GetHoleCoord(e.GetPosition(this), false);
Point actualCoord = new Point(0, 0);
bool isValid = false;
//We only want to start a new wire if the user clicks on or near a hole
foreach (Point p in BreadBoardHolePositions)
{
double distance = Math.Sqrt(Math.Pow((p.X - rawCoord.X), 2) + Math.Pow((p.Y - rawCoord.Y), 2));
if (distance < 0.4)
{
isValid = true;
actualCoord = p;
break;
}
}
if (isValid)
{
Component newComponent = Component.CreateComponent(ParentCircuit, GetAbsolutePosition(actualCoord), selectedComponentType);
if (newComponent != null)
{
if (newComponent is LeadedComponent)
{
ComponentPointA = GetAbsolutePosition(actualCoord);
StartedLeadedComponent = true;
NewLeadedComponent = (LeadedComponent)newComponent;
NewLeadedComponent.MakeTemporary();
}
else
{
ParentCircuit.AddUndoAction(new AddAction(newComponent, ParentCircuit));
}
ParentCircuit.AddComponent(newComponent);
ParentCircuit.UpdateNetConnectivity();
}
}
}
}
}
ParentCircuit.ParentWindow.UpdatePrompt();
}