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import os
import bpy
from bpy.props import *
from pathlib import Path
from . base import BaseNode
from . utils.enum_items_cache import cache_enum_items
from functools import lru_cache
@lru_cache()
def get_node_group_names_in_file(path: str):
with bpy.data.libraries.load(path) as (data_from, data_to):
return list(data_from.node_groups)
class NodeSearch(bpy.types.Operator):
bl_idname = "fn.node_search"
bl_label = "Node Search"
bl_options = {'REGISTER', 'UNDO'}
bl_property = "item"
def get_search_items(self, context):
items = []
tree = context.space_data.edit_tree
for node_cls in BaseNode.iter_final_subclasses():
for search_term, settings in node_cls.get_search_terms():
item = encode_search_item(("BUILTIN", node_cls.bl_idname, settings), search_term)
items.append(item)
current_tree = context.space_data.node_tree
for tree in current_tree.find_callable_trees():
item = encode_search_item(("EXISTING_GROUP", tree.name), tree.name + " (G)")
items.append(item)
nodelibdir = context.preferences.filepaths.nodelib_directory
if len(nodelibdir) > 0 and os.path.exists(nodelibdir):
local_group_names = set(tree.name for tree in bpy.data.node_groups)
for path in Path(nodelibdir).glob("**/*.blend"):
if not path.is_file():
continue
for group_name in get_node_group_names_in_file(str(path)):
if group_name not in local_group_names:
item = encode_search_item(("LIB_GROUP", str(path), group_name), group_name + " (G)")
items.append(item)
sorted_items = list(sorted(items, key=lambda item: item[1]))
return sorted_items
item: EnumProperty(items=cache_enum_items(get_search_items))
@classmethod
def poll(cls, context):
try: return context.space_data.node_tree.bl_idname == "FunctionTree"
except: return False
def invoke(self, context, event):
context.window_manager.invoke_search_popup(self)
return {'CANCELLED'}
def execute(self, context):
tree = context.space_data.node_tree
for node in tree.nodes:
node.select = False
item_data = decode_search_item(self.item)
item_type = item_data[0]
if item_type == "BUILTIN":
idname, settings = item_data[1:]
bpy.ops.node.add_node('INVOKE_DEFAULT', type=idname)
new_node = context.active_node
for key, value in settings.items():
setattr(new_node, key, value)
elif item_type == "EXISTING_GROUP":
group_name = item_data[1]
bpy.ops.node.add_node('INVOKE_DEFAULT', type="fn_GroupNode")
new_node = context.active_node
new_node.node_group = bpy.data.node_groups[group_name]
elif item_type == "LIB_GROUP":
path, group_name = item_data[1:]
bpy.ops.node.add_node('INVOKE_DEFAULT', type="fn_GroupNode")
new_node = context.active_node
with bpy.data.libraries.load(path, link=True) as (data_from, data_to):
data_to.node_groups = [group_name]
new_node.node_group = bpy.data.node_groups[group_name]
bpy.ops.node.translate_attach("INVOKE_DEFAULT")
return {'FINISHED'}
def encode_search_item(data, search_term):
identifier = repr(data)
return (identifier, search_term, "")
def decode_search_item(identifier):
return eval(identifier)
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