Method create_connection

src/core/node_graph.py:626–644

Create a connection, optionally using command pattern for undo/redo.

(self, start_pin, end_pin, use_command=True)

            return True

    def create_connection(self, start_pin, end_pin, use_command=True):
        """Create a connection, optionally using command pattern for undo/redo."""
        if not start_pin.can_connect_to(end_pin):
            return None
            
        if use_command:
            # Use command pattern
            command = CreateConnectionCommand(self, start_pin, end_pin)
            if self.execute_command(command):
                return command.created_connection
            return None
        else:
            # Direct creation (for internal use by commands)
            conn = Connection(start_pin, end_pin)
            self.addItem(conn)
            self.connections.append(conn)
            if isinstance(end_pin.node, RerouteNode):
                end_pin.node.update_color()
            return conn

    def remove_connection(self, connection, use_command=True):
        """Remove a connection, optionally using command pattern for undo/redo."""