private void NodesControl_MouseUp(object sender, MouseEventArgs e)
{
if (selectionStart != PointF.Empty)
{
var rect = MakeRect(selectionStart, selectionEnd);
graph.Nodes.ForEach(
x => x.IsSelected = rect.Contains(new RectangleF(new PointF(x.X, x.Y), x.GetNodeBounds())));
selectionStart = PointF.Empty;
}
if (dragSocket != null)
{
var nodeWhole =
graph.Nodes.OrderBy(x => x.Order).FirstOrDefault(
x => new RectangleF(new PointF(x.X, x.Y), x.GetNodeBounds()).Contains(e.Location));
if (nodeWhole != null)
{
var socket = nodeWhole.GetSockets().FirstOrDefault(x => x.GetBounds().Contains(e.Location));
if (socket != null)
{
if (IsConnectable(dragSocket, socket) && dragSocket.Input != socket.Input)
{
var nc = new NodeConnection();
if (!dragSocket.Input)
{
nc.OutputNode = dragSocketNode;
nc.OutputSocketName = dragSocket.Name;
nc.InputNode = nodeWhole;
nc.InputSocketName = socket.Name;
}
else
{
nc.InputNode = dragSocketNode;
nc.InputSocketName = dragSocket.Name;
nc.OutputNode = nodeWhole;
nc.OutputSocketName = socket.Name;
}
graph.Connections.RemoveAll(
x => x.InputNode == nc.InputNode && x.InputSocketName == nc.InputSocketName);
graph.Connections.Add(nc);
rebuildConnectionDictionary = true;
}
}
}
}
dragSocket = null;
mdown = false;
needRepaint = true;
}
private bool IsConnectable(SocketVisual a, SocketVisual b)
{
var input = a.Input ? a : b;
var output = a.Input ? b : a;
var otype = Type.GetType(output.Type.FullName.Replace("&", ""), AssemblyResolver, TypeResolver);
var itype = Type.GetType(input.Type.FullName.Replace("&", ""), AssemblyResolver, TypeResolver);
if (otype == null || itype == null)
{
return(false);
}
var allow = otype == itype || otype.IsSubclassOf(itype);
return(allow);
}
internal SocketVisual[] GetSockets()
{
if (socketCache != null)
{
return(socketCache);
}
var socketList = new List <SocketVisual>();
float curInputH = HeaderHeight + ComponentPadding;
float curOutputH = HeaderHeight + ComponentPadding;
var NodeWidth = GetNodeBounds().Width;
foreach (var input in GetInputs())
{
var socket = new SocketVisual();
socket.Type = null;
socket.Height = SocketVisual.SocketHeight;
socket.Name = input.Name;
socket.Width = SocketVisual.SocketHeight;
socket.X = X;
socket.Y = Y + curInputH;
socket.Input = true;
socketList.Add(socket);
curInputH += SocketVisual.SocketHeight + ComponentPadding;
}
//var ctx = GetNodeContext() as DynamicNodeContext;
foreach (var output in GetOutputs())
{
var socket = new SocketVisual();
socket.Type = null;
socket.Height = SocketVisual.SocketHeight;
socket.Width = SocketVisual.SocketHeight;
socket.X = X + NodeWidth - SocketVisual.SocketHeight;
socket.Y = Y + curOutputH;
//socket.Value = ctx[socket.Name];
socketList.Add(socket);
curOutputH += SocketVisual.SocketHeight + ComponentPadding;
}
socketCache = socketList.ToArray();
return(socketCache);
}
private void NodesControl_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
selectionStart = PointF.Empty;
Focus();
if ((ModifierKeys & Keys.Shift) != Keys.Shift)
{
graph.Nodes.ForEach(x => x.IsSelected = false);
}
var node =
graph.Nodes.OrderBy(x => x.Order).FirstOrDefault(
x => new RectangleF(new PointF(x.X, x.Y), x.GetHeaderSize()).Contains(e.Location));
if (node != null && !mdown)
{
node.IsSelected = true;
node.Order = graph.Nodes.Min(x => x.Order) - 1;
if (node.CustomEditor != null)
{
node.CustomEditor.BringToFront();
}
mdown = true;
lastmpos = PointToScreen(e.Location);
Refresh();
}
if (node == null && !mdown)
{
var nodeWhole =
graph.Nodes.OrderBy(x => x.Order).FirstOrDefault(
x => new RectangleF(new PointF(x.X, x.Y), x.GetNodeBounds()).Contains(e.Location));
if (nodeWhole != null)
{
node = nodeWhole;
var socket = nodeWhole.GetSockets().FirstOrDefault(x => x.GetBounds().Contains(e.Location));
if (socket != null)
{
if ((ModifierKeys & Keys.Control) == Keys.Control)
{
var connection =
graph.Connections.FirstOrDefault(
x => x.InputNode == nodeWhole && x.InputSocketName == socket.Name);
if (connection != null)
{
dragSocket =
connection.OutputNode.GetSockets()
.FirstOrDefault(x => x.Name == connection.OutputSocketName);
dragSocketNode = connection.OutputNode;
}
else
{
connection =
graph.Connections.FirstOrDefault(
x => x.OutputNode == nodeWhole && x.OutputSocketName == socket.Name);
if (connection != null)
{
dragSocket =
connection.InputNode.GetSockets()
.FirstOrDefault(x => x.Name == connection.InputSocketName);
dragSocketNode = connection.InputNode;
}
}
graph.Connections.Remove(connection);
rebuildConnectionDictionary = true;
}
else
{
dragSocket = socket;
dragSocketNode = nodeWhole;
}
dragConnectionBegin = e.Location;
dragConnectionEnd = e.Location;
mdown = true;
lastmpos = PointToScreen(e.Location);
}
}
else
{
selectionStart = selectionEnd = e.Location;
}
}
if (node != null)
{
OnNodeContextSelected(node.GetNodeContext());
}
}
needRepaint = true;
}
internal SocketVisual[] GetSockets()
{
if (socketCache != null)
{
return(socketCache);
}
var socketList = new List <SocketVisual>();
float curInputH = HeaderHeight + ComponentPadding;
float curOutputH = HeaderHeight + ComponentPadding;
var NodeWidth = GetNodeBounds().Width;
if (Callable)
{
if (!ExecInit)
{
socketList.Add(new SocketVisual()
{
Height = SocketVisual.SocketHeight,
Name = "Enter",
Type = typeof(ExecutionPath),
IsMainExecution = true,
Width = SocketVisual.SocketHeight,
X = X,
Y = Y + curInputH,
Input = true
});
}
socketList.Add(new SocketVisual()
{
Height = SocketVisual.SocketHeight,
Name = "Exit",
IsMainExecution = true,
Type = typeof(ExecutionPath),
Width = SocketVisual.SocketHeight,
X = X + NodeWidth - SocketVisual.SocketHeight,
Y = Y + curOutputH
});
curOutputH += SocketVisual.SocketHeight + ComponentPadding;
curInputH += SocketVisual.SocketHeight + ComponentPadding;
}
foreach (var input in GetInputs())
{
var socket = new SocketVisual();
socket.Type = input.ParameterType;
socket.Height = SocketVisual.SocketHeight;
socket.Name = input.Name;
socket.Width = SocketVisual.SocketHeight;
socket.X = X;
socket.Y = Y + curInputH;
socket.Input = true;
socketList.Add(socket);
curInputH += SocketVisual.SocketHeight + ComponentPadding;
}
var ctx = GetNodeContext() as DynamicNodeContext;
foreach (var output in GetOutputs())
{
var socket = new SocketVisual();
socket.Type = output.ParameterType;
socket.Height = SocketVisual.SocketHeight;
socket.Name = output.Name;
socket.Width = SocketVisual.SocketHeight;
socket.X = X + NodeWidth - SocketVisual.SocketHeight;
socket.Y = Y + curOutputH;
socket.Value = ctx[socket.Name];
socketList.Add(socket);
curOutputH += SocketVisual.SocketHeight + ComponentPadding;
}
socketCache = socketList.ToArray();
return(socketCache);
}