nodeslicer/registry.py

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No EOL
2.5 KiB
Python

# registry.py
import bpy
from typing import Any, Callable
_bpy_class_registry: list[type] = []
_timer_registry: list[Callable[..., int | None]] = []
# BPY CLASSES
def register_class(cls: type) -> type:
if cls not in _bpy_class_registry:
_bpy_class_registry.append(cls)
return cls
def get() -> list[type]:
return list(_bpy_class_registry)
def get_label_by_name(name: str) -> str:
for cls in get():
if cls.__name__ == name:
return getattr(cls, "bl_label", "No Label")
return ''
def get_class_by_name(name: str) -> type | None:
for cls in get():
if cls.__name__ == name:
return cls
return None
def blender_register_classes():
for cls in _bpy_class_registry:
try:
bpy.utils.register_class(cls)
except Exception as e:
print(f"Nodeslicer: Failed to register {cls}: {e}")
def blender_unregister_classes():
for cls in reversed(_bpy_class_registry):
try:
if hasattr(cls, "is_registered") and cls.is_registered: # type: ignore
bpy.utils.unregister_class(cls)
elif hasattr(cls, "bl_rna"):
# Fallback for classes that don't have is_registered (older Blender or certain types)
bpy.utils.unregister_class(cls)
except Exception as e:
print(f"Nodeslicer: Failed to unregister {cls}: {e}")
# TIMERS
def register_timer(clb: Callable[..., Any]):
_timer_registry.append(clb)
return clb
def get_timers() -> list[Callable[..., int | None]]:
return list(_timer_registry)
def blender_register_timers():
for timer in _timer_registry:
bpy.app.timers.register(timer, persistent=True)
def blender_unregister_timers():
for timer in _timer_registry:
bpy.app.timers.unregister(timer)
import os
from bpy.utils.previews import ImagePreviewCollection
_icons_pcoll: ImagePreviewCollection | None = None
def blender_register_icons():
global _icons_pcoll
_icons_pcoll = bpy.utils.previews.new()
my_icons_dir = os.path.join(os.path.dirname(__file__), "icons")
for filename in os.listdir(my_icons_dir):
_icons_pcoll.load(filename, os.path.join(my_icons_dir, filename), 'IMAGE')
def blender_unregister_icons():
global _icons_pcoll
if not _icons_pcoll: return
bpy.utils.previews.remove(_icons_pcoll)
del _icons_pcoll
def get_icon(icon_id: str) -> int:
global _icons_pcoll
if not _icons_pcoll: return -1
return _icons_pcoll[icon_id].icon_id