/// <summary>
/// Resolves given node, resolving it all dependencies recursively.
/// </summary>
/// <param name="node"></param>
private void Resolve(NodeVisual node)
{
var icontext = (node.GetNodeContext() as DynamicNodeContext);
foreach (var input in node.GetInputs())
{
var connection = GetConnection(node.GUID + input.Name);
//graph.Connections.FirstOrDefault(x => x.InputNode == node && x.InputSocketName == input.Name);
if (connection != null)
{
Resolve(connection.OutputNode);
if (!connection.OutputNode.Callable)
{
connection.OutputNode.Execute(Context);
}
var ocontext = (connection.OutputNode.GetNodeContext() as DynamicNodeContext);
icontext[connection.InputSocketName] = ocontext[connection.OutputSocketName];
}
}
}
private void ExecuteResolvingInternal(NodeVisual node)
{
var icontext = (node.GetNodeContext() as DynamicNodeContext);
foreach (var input in node.GetInputs())
{
var connection =
graph.Connections.FirstOrDefault(x => x.InputNode == node && x.InputSocketName == input.Name);
if (connection != null)
{
Resolve(connection.OutputNode);
connection.OutputNode.Execute(Context);
ExecuteResolvingInternal(connection.OutputNode);
var ocontext = (connection.OutputNode.GetNodeContext() as DynamicNodeContext);
icontext[connection.InputSocketName] = ocontext[connection.OutputSocketName];
}
}
}
private void NodesControl_MouseClick(object sender, MouseEventArgs e)
{
lastMouseLocation = e.Location;
if (Context == null)
{
return;
}
if (e.Button == MouseButtons.Right)
{
var methods = Context.GetType().GetMethods();
var nodes =
methods.Select(
x =>
new
NodeToken()
{
Method = x,
Attribute =
x.GetCustomAttributes(typeof(NodeAttribute), false)
.Cast <NodeAttribute>()
.FirstOrDefault()
}).Where(x => x.Attribute != null);
var context = new ContextMenuStrip();
if (graph.Nodes.Exists(x => x.IsSelected))
{
context.Items.Add("Delete Node(s)", null, ((o, args) =>
{
DeleteSelectedNodes();
}));
context.Items.Add("Duplicate Node(s)", null, ((o, args) =>
{
DuplicateSelectedNodes();
}));
context.Items.Add("Change Color ...", null, ((o, args) =>
{
ChangeSelectedNodesColor();
}));
if (graph.Nodes.Count(x => x.IsSelected) == 2)
{
var sel = graph.Nodes.Where(x => x.IsSelected).ToArray();
context.Items.Add("Check Impact", null, ((o, args) =>
{
if (HasImpact(sel[0], sel[1]) || HasImpact(sel[1], sel[0]))
{
MessageBox.Show("One node has impact on other.", "Impact detected.", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("These nodes not impacts themselves.", "No impact.", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}));
}
context.Items.Add(new ToolStripSeparator());
}
if (allContextItems.Values.Any(x => x > 0))
{
var handy = allContextItems.Where(x => x.Value > 0 && !string.IsNullOrEmpty(((x.Key.Tag) as NodeToken).Attribute.Menu)).OrderByDescending(x => x.Value).Take(8);
foreach (var kv in handy)
{
context.Items.Add(kv.Key);
}
context.Items.Add(new ToolStripSeparator());
}
foreach (var node in nodes.OrderBy(x => x.Attribute.Path))
{
AddToMenu(context.Items, node, node.Attribute.Path, (s, ev) =>
{
var tag = (s as ToolStripMenuItem).Tag as NodeToken;
var nv = new NodeVisual();
nv.X = lastMouseLocation.X;
nv.Y = lastMouseLocation.Y;
nv.Type = node.Method;
nv.Callable = node.Attribute.IsCallable;
nv.Name = node.Attribute.Name;
nv.Order = graph.Nodes.Count;
nv.ExecInit = node.Attribute.IsExecutionInitiator;
nv.XmlExportName = node.Attribute.XmlExportName;
nv.CustomWidth = node.Attribute.Width;
nv.CustomHeight = node.Attribute.Height;
if (node.Attribute.CustomEditor != null)
{
Control ctrl = null;
nv.CustomEditor = ctrl = Activator.CreateInstance(node.Attribute.CustomEditor) as Control;
if (ctrl != null)
{
ctrl.Tag = nv;
Controls.Add(ctrl);
}
nv.LayoutEditor();
}
graph.Nodes.Add(nv);
Refresh();
needRepaint = true;
});
}
context.Show(MousePosition);
}
}
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;
}