Command for creating groups with full state preservation and undo/redo support.
| 18 | |
| 19 | |
| 20 | class CreateGroupCommand(CommandBase): |
| 21 | """Command for creating groups with full state preservation and undo/redo support.""" |
| 22 | |
| 23 | def __init__(self, node_graph, group_properties: Dict[str, Any]): |
| 24 | """ |
| 25 | Initialize create group command. |
| 26 | |
| 27 | Args: |
| 28 | node_graph: The NodeGraph instance |
| 29 | group_properties: Dictionary containing group configuration: |
| 30 | - name: Group name |
| 31 | - description: Group description |
| 32 | - member_node_uuids: List of member node UUIDs |
| 33 | - auto_size: Whether to auto-size the group |
| 34 | - padding: Padding around member nodes |
| 35 | """ |
| 36 | super().__init__(f"Create group '{group_properties.get('name', 'Group')}'") |
| 37 | self.node_graph = node_graph |
| 38 | self.group_properties = group_properties.copy() |
| 39 | self.created_group = None |
| 40 | self.group_uuid = str(uuid.uuid4()) |
| 41 | |
| 42 | # Store creation timestamp |
| 43 | self.group_properties["creation_timestamp"] = datetime.now().isoformat() |
| 44 | |
| 45 | def execute(self) -> bool: |
| 46 | """Create the group and add to graph.""" |
| 47 | try: |
| 48 | # Import here to avoid circular imports - try different import paths |
| 49 | Group = self._get_group_class() |
| 50 | if not Group: |
| 51 | self._show_error("Failed to import Group class. Please check your installation.") |
| 52 | return False |
| 53 | |
| 54 | # Validate that all member nodes exist |
| 55 | member_nodes = self._get_member_nodes() |
| 56 | if len(member_nodes) != len(self.group_properties["member_node_uuids"]): |
| 57 | self._show_error(f"Some member nodes not found. Expected {len(self.group_properties['member_node_uuids'])}, found {len(member_nodes)}. Cannot create group.") |
| 58 | return False |
| 59 | |
| 60 | # Create the group |
| 61 | self.created_group = Group( |
| 62 | name=self.group_properties["name"], |
| 63 | member_node_uuids=self.group_properties["member_node_uuids"] |
| 64 | ) |
| 65 | |
| 66 | # Set properties |
| 67 | self.created_group.uuid = self.group_uuid |
| 68 | self.created_group.description = self.group_properties.get("description", "") |
| 69 | self.created_group.creation_timestamp = self.group_properties["creation_timestamp"] |
| 70 | self.created_group.padding = self.group_properties.get("padding", 20.0) |
| 71 | |
| 72 | # Auto-size if requested |
| 73 | if self.group_properties.get("auto_size", True): |
| 74 | self.created_group.calculate_bounds_from_members(self.node_graph) |
| 75 | |
| 76 | # Add to graph first (needed for connection analysis) |
| 77 | self.node_graph.addItem(self.created_group) |
no outgoing calls