textify_icons.py

import atexit
from pathlib import Path
from bpy.utils import previews

_custom_icons = None


def load_icons():
    global _custom_icons
    if _custom_icons is None:
        _custom_icons = previews.new()

        icons_dir = Path(__file__).resolve().parent / "icons"
        for icon_file in icons_dir.glob("*.png"):
            icon_name = icon_file.stem
            if icon_name not in _custom_icons:
                _custom_icons.load(icon_name, str(icon_file), 'IMAGE')


def unload_icons():
    global _custom_icons
    if _custom_icons:
        previews.remove(_custom_icons)
        _custom_icons = None


def get_icon(name):
    if _custom_icons is None:
        return None
    icon = _custom_icons.get(name)
    return icon.icon_id if icon else None


atexit.register(unload_icons)


def register():
    load_icons()


def unregister():
    load_icons()