import gi
gi.require_version("Gtk", "4.0")
from gi.repository import Gtk
import logging

logger = logging.getLogger(__name__)

class PictureCache:

    def __init__(self):
        self._cache = {}

    def get(self, path):
        if path in self._cache:
            logger.debug('Loading from cache: %s', path)
            return self._cache[path]
        else:
            picture = Gtk.Picture.new_for_filename(path)
            logger.debug('Adding in cache: %s', path)
            self._cache[path] = picture
            return picture

    def invalidate(self, path):
        logger.debug('Invalidating: %s', path)
        if path in self._cache:
            del self._cache[path]