public void DoEdges()
{
// Draw edges on repaint.
if (Event.current.type == EventType.Repaint)
{
Handles.BeginGUI();
var colorOff = Color.white;
var colorOn = new Color(0.6f, 0.75f, 1);
var i = 0;
foreach (var edge in host.graph.edges)
{
if (edge == _moveEdge)
{
continue;
}
bool BlockSelected = host.selection.Contains(edge.fromSlot.node);
// edge.fromSlot.node
bool ison = edgeSelection.Contains(i) || Event.current.alt;
var clr = BlockSelected ? Color.green : (ison ? colorOn : colorOff);
string t = "";
if (ison)
{
t = NodeFactory.GetTypeName(edge.fromSlot.dataType);
}
DrawEdge(edge, clr, t);
i++;
}
Handles.EndGUI();
}
// Terminate dragging operation on mouse button up.
if (Event.current.type == EventType.MouseUp && _dragSourceSlot != null)
{
if (_moveEdge != null)
{
host.graph.RemoveEdge(_moveEdge);
_moveEdge = null;
}
if (_dropTarget == null)
{
EndDragging();
Event.current.Use();
}
}
}
public void DoDraggedEdge()
{
if (_dragSourceSlot == null)
{
return;
}
var eventType = Event.current.GetTypeForControl(0);
if (eventType == EventType.Repaint)
{
// Draw the working edge.
var p1 = GetPositionAsFromSlot(_dragSourceSlot);
var p2 = _dropTarget != null?
GetPositionAsToSlot(_dropTarget) :
Event.current.mousePosition;
var n = (_dragSourceSlot.node as Block).runtimeInstance;
DrawEdge(p1, p2, Color.white, n.name + "." + _dragSourceSlot.title + "[" + NodeFactory.GetTypeName(_dragSourceSlot.dataType) + "]");
}
if (eventType == EventType.MouseDrag)
{
// Discard the last candidate.
_dropTarget = null;
Event.current.Use();
}
}