icons_utils.py 文件源码

def set_icon(self, icon_name):
        icon_name = uriparse(icon_name)
        theme = Gtk.IconTheme.get_default()
        # Make sure the icon name doesn't contain any special char
        # Be sure that the icon still exists on the system
        if (is_path(icon_name) and path.exists(icon_name)
                and get_ext(icon_name) in SUPPORTED_EXTS):
            pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_scale(icon_name,
                                                             Image.SIZE, Image.SIZE,
                                                             True)
        elif theme.has_icon(icon_name):
            pixbuf = theme.load_icon_for_scale(icon_name, Image.SIZE, 1, 0)
        else:
            pixbuf = theme.load_icon_for_scale("image-missing",
                                               Image.SIZE, 1, 0)
        self.set_from_pixbuf(pixbuf)