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"""
Icon.py
by Jason Conti
February 22, 2010
updated: March 26, 2011
Utility functions for working with icons.
"""
import gc
from gi.repository import GdkPixbuf, Gtk
import logging
icon_cache = {}
logger = logging.getLogger("Icon")
def clear_cache():
"""Clear the icon cache, garbage collecting all the icons."""
global icon_cache
for key, icon in icon_cache:
del icon
icon_cache = {}
gc.collect()
def load(name, size = 48):
"""Loads an icon from the default icon theme."""
global icon_cache
if (name, size) in icon_cache:
return icon_cache[(name, size)]
else:
try:
theme = Gtk.IconTheme.get_default()
icon = theme.load_icon(name, size, Gtk.IconLookupFlags.FORCE_SVG)
icon_cache[(name, size)] = icon
return icon
except:
logger.exception("failed to load_icon")
return None
def load_from_file(path, size = 48):
"""Loads an icon from the given path."""
global icon_cache
if (path, size) in icon_cache:
return icon_cache[(path, size)]
else:
try:
icon = GdkPixbuf.Pixbuf.new_from_file_at_size(path, size, size)
icon_cache[(path, size)] = icon
return icon
except:
logger.exception("failed to load_icon_from_file")
return None
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