Method undo

src/commands/node/basic_operations.py:319–586

Restore node with complete state and reconnections.

(self)

            return False
    
    def undo(self) -> bool:
        """Restore node with complete state and reconnections."""
        if not self.node_state:
            print(f"Error: No node state to restore")
            return False
        
        try:
            # Import here to avoid circular imports
            from core.node import Node
            from PySide6.QtGui import QColor
            
            # Use local debug configuration
            debug_enabled = DEBUG_NODE_COMMANDS
            
            # Recreate node with preserved state - check if it was a RerouteNode
            if self.node_state.get('is_reroute', False):
                # Recreate as RerouteNode
                from core.reroute_node import RerouteNode
                restored_node = RerouteNode()
                restored_node.uuid = self.node_state['id']
                restored_node.setPos(self.node_state['position'])
                # RerouteNodes don't have most of the properties that regular nodes have
            else:
                # Recreate as regular Node
                restored_node = Node(self.node_state['title'])
                restored_node.uuid = self.node_state['id']
                restored_node.description = self.node_state['description']
                restored_node.setPos(self.node_state['position'])
                # Set code which will trigger pin updates
                restored_node.set_code(self.node_state['code'])
                # Set GUI code which will trigger GUI rebuild  
                restored_node.set_gui_code(self.node_state['gui_code'])
                restored_node.set_gui_get_values_code(self.node_state['gui_get_values_code'])
                restored_node.function_name = self.node_state['function_name']
            
            # Only apply regular node properties if it's not a RerouteNode
            if not self.node_state.get('is_reroute', False):
                if debug_enabled:
                    print(f"DEBUG: Restoring regular node properties for '{self.node_state['title']}'")
                    print(f"DEBUG: Original size: {self.node_state['width']}x{self.node_state['height']}")
                # Restore size BEFORE updating pins (important for layout)
                restored_node.width = self.node_state['width']
                restored_node.height = self.node_state['height']
                restored_node.base_width = self.node_state['base_width']
                
                # Restore colors
                if self.node_state['color_title_bar']:
                    if isinstance(self.node_state['color_title_bar'], str):
                        restored_node.color_title_bar = QColor(self.node_state['color_title_bar'])
                    else:
                        restored_node.color_title_bar = self.node_state['color_title_bar']
                
                if self.node_state['color_body']:
                    if isinstance(self.node_state['color_body'], str):
                        restored_node.color_body = QColor(self.node_state['color_body'])
                    else:
                        restored_node.color_body = self.node_state['color_body']