private bool TryToMergeWire(float x, float y, Pin pin)
{
float scaledX = (x - translate.X) / zoom;
float scaledY = (y - translate.Y) / zoom;
// find wire that contains touch point
Wire wireToMerge = null;
Pin startToMerge = null;
Pin endToMerge = null;
// try to merge wire Pin to current element Pin
foreach (var pair in Elements.Where(_ => _.Value is Wire))
{
var wire = pair.Value as Wire;
bool startBounds = wire.StartBounds.Contains(scaledX, scaledY) == true;
bool endBounds = wire.EndBounds.Contains(scaledX, scaledY) == true;
bool wireBounds = wire.WireBounds.Contains(scaledX, scaledY) == true;
// check for wire start pin
// exlude if wire start is same as pin to merge
if (startBounds == true && wire.Start != pin)
{
wireToMerge = wire;
startToMerge = wire.Start;
break;
}
// check for wire end pin
// exlude if wire end is same as pin to merge
if (endBounds == true && wire.End != pin)
{
wireToMerge = wire;
endToMerge = wire.End;
break;
}
}
// merge wire start
if (wireToMerge != null && startToMerge != null && startToMerge.Parent == null)
{
MergeWireStart(wireToMerge, startToMerge, pin);
// if pin is wire end than wire is removed
if (pin == wireToMerge.End)
{
Element value;
Elements.TryRemove(wireToMerge.Id, out value);
wireToMerge.Start.Wires.Remove(wireToMerge);
wireToMerge.End.Wires.Remove(wireToMerge);
//Console.WriteLine ("TryToMergeWire: pin==wireToMerge.End, Pin.Id {0} Remove wireToMerge.Id", pin.Id, wireToMerge.Id);
}
// check for other end Wires connections to be merged
UpdateMergedPinWires(pin, wireToMerge, startToMerge);
// if merged start does not have any connected wires than need to be removed
if (startToMerge.Wires.Count == 0)
{
Element value;
Elements.TryRemove(startToMerge.Id, out value);
//Console.WriteLine ("TryToMergeWire: startToMerge.Wires.Count==0, Pin.Id {0} Remove startToMerge.Id", pin.Id, startToMerge.Id);
}
// if pin does not have any connected wires than need to be removed
if (pin.Wires.Count == 0)
{
Element value;
Elements.TryRemove(pin.Id, out value);
//Console.WriteLine ("TryToMergeWire: pin.Wires.Count==0, Pin.Id {0} Remove pin.Id", pin.Id);
}
// otherwise update all wires connected to pin
else
{
UpdateWires(pin.Wires, 0f, 0f);
}
ResetStartAndEndPin();
return(true);
}
// merge wire end
if (wireToMerge != null && endToMerge != null && endToMerge.Parent == null)
{
MergeWireEnd(wireToMerge, endToMerge, pin);
// if pin is wire start than wire is removed
if (pin == wireToMerge.Start)
{
Element value;
Elements.TryRemove(wireToMerge.Id, out value);
wireToMerge.Start.Wires.Remove(wireToMerge);
wireToMerge.End.Wires.Remove(wireToMerge);
//Console.WriteLine ("TryToMergeWire: pin==wireToMerge.Start, Pin.Id {0} Remove wireToMerge.Id", pin.Id, wireToMerge.Id);
}
// check for other end Wires connections to be merged
UpdateMergedPinWires(pin, wireToMerge, endToMerge);
// if merged end does not have any connected wires than need to be removed
if (endToMerge.Wires.Count == 0)
{
Element value;
Elements.TryRemove(endToMerge.Id, out value);
//Console.WriteLine ("TryToMergeWire: endToMerge.Wires.Count==0, Pin.Id {0} Remove endToMerge.Id", pin.Id, endToMerge.Id);
}
// if pin does not have any connected wires than need to be removed
if (pin.Wires.Count == 0)
{
Element value;
Elements.TryRemove(pin.Id, out value);
//Console.WriteLine ("TryToMergeWire: pin.Wires.Count==0, Pin.Id {0} Remove pin.Id", pin.Id);
}
// otherwise update all wires connected to pin
else
{
UpdateWires(pin.Wires, 0f, 0f);
}
ResetStartAndEndPin();
return(true);
}
return(false);
}
public static void Deserialize(string model, ConcurrentDictionary <int, Element> elements)
{
if (string.IsNullOrEmpty(model))
{
return;
}
string type = null;
var lines = model.Split(ModelLineSeparators, StringSplitOptions.RemoveEmptyEntries);
foreach (var element in lines)
{
var args = element.Split(ModelArgSeparators, StringSplitOptions.RemoveEmptyEntries);
int length = args.Length;
if (length < 2)
{
continue;
}
type = args[0];
if (string.Compare(type, "Pin", StringComparison.InvariantCultureIgnoreCase) == 0 && length == 4)
{
int id = int.Parse(args[1]);
float x = float.Parse(args[2]);
float y = float.Parse(args[3]);
var pin = new Pin(id, null, x, y, 4f, 3f);
elements.TryAdd(id, pin);
}
else if (string.Compare(type, "Wire", StringComparison.InvariantCultureIgnoreCase) == 0 && length == 6)
{
int id = int.Parse(args[1]);
int startParentId = int.Parse(args[2]);
int startId = int.Parse(args[3]);
int endParentId = int.Parse(args[4]);
int endtId = int.Parse(args[5]);
var wire = new Wire(id, startParentId, startId, endParentId, endtId);
elements.TryAdd(id, wire);
}
else if (string.Compare(type, "AndGate", StringComparison.InvariantCultureIgnoreCase) == 0 && length == 4)
{
int id = int.Parse(args[1]);
float x = float.Parse(args[2]);
float y = float.Parse(args[3]);
var andGate = new AndGate(id, x, y);
elements.TryAdd(id, andGate);
}
else if (string.Compare(type, "OrGate", StringComparison.InvariantCultureIgnoreCase) == 0 && length == 4)
{
int id = int.Parse(args[1]);
float x = float.Parse(args[2]);
float y = float.Parse(args[3]);
var orGate = new OrGate(id, x, y, 1);
elements.TryAdd(id, orGate);
}
}
UpdateWireConnections(elements);
}
private bool TryToDetachWire(float x, float y)
{
float scaledX = (x - translate.X) / zoom;
float scaledY = (y - translate.Y) / zoom;
// find wire that contains touch point
Wire wireToDetach = null;
Pin startToDetach = null;
Pin endToDetach = null;
// try to detach wire Pin from current element
foreach (var pair in Elements.Where(_ => _.Value is Wire))
{
var wire = pair.Value as Wire;
bool startBounds = wire.StartBounds.Contains(scaledX, scaledY) == true;
bool endBounds = wire.EndBounds.Contains(scaledX, scaledY) == true;
bool wireBounds = wire.WireBounds.Contains(scaledX, scaledY) == true;
// check for wire start pin
if (startBounds == true)
{
wireToDetach = wire;
startToDetach = wire.Start;
break;
}
// check for wire end pin
if (endBounds == true)
{
wireToDetach = wire;
endToDetach = wire.End;
break;
}
}
// detach wire start
if (wireToDetach != null && startToDetach != null && startToDetach.Parent != null)
{
// create standalone pin
var pin = InsertPin(scaledX, scaledY, false);
// set detached wire start to standalone pin
SwapWireStart(wireToDetach, startToDetach, pin);
// reset start pin
startToDetach.IsSelected = false;
// set standalone pin as current element
currentElement = pin;
currentElement.ShowPins = true;
UpdateWires(pin.Wires, 0f, 0f);
ResetStartAndEndPin();
return(true);
}
// detach wire end
if (wireToDetach != null && endToDetach != null && endToDetach.Parent != null)
{
// create standalone pin
var pin = InsertPin(scaledX, scaledY, false);
// set detached wire end to standalone pin
SwapWireEnd(wireToDetach, endToDetach, pin);
// reset start pin
endToDetach.IsSelected = false;
// set standalone pin as current element
currentElement = pin;
currentElement.ShowPins = true;
UpdateWires(pin.Wires, 0f, 0f);
ResetStartAndEndPin();
return(true);
}
return(false);
}