Method clear_graph

src/core/node_graph.py:96–112

Removes all nodes, connections, and groups from the scene.

(self)

        return self.command_history.get_redo_description()

    def clear_graph(self):
        """Removes all nodes, connections, and groups from the scene."""
        # Remove all connections first
        for connection in list(self.connections):
            self.remove_connection(connection, use_command=False)
        
        # Remove all nodes directly (bypass command pattern for clearing)
        for node in list(self.nodes):
            self.remove_node(node, use_command=False)
        
        # Remove all groups
        if hasattr(self, 'groups'):
            for group in list(self.groups):
                self.removeItem(group)
            self.groups.clear()
        
        self.update()

    def keyPressEvent(self, event: QKeyEvent):
        # Handle undo/redo shortcuts