#!/usr/bin/env python
#
# xkcd.py
# Script to download the latest XKCD comic 
# and place it as your GNOME wallpaper
# 
# Copyright (C) 2010 Shreyank Gupta <sgupta@REDHAT.COM>
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import urllib
import re
from subprocess import call

TMPFILE = "/tmp/xkcd.png"
XKCD_URL = "http://xkcd.com/"
IMG_REGEX = re.compile("http://imgs\.xkcd\.com/comics/.*\.png")

fd = urllib.urlopen(XKCD_URL)
url = IMG_REGEX.findall(fd.read())[0]

call(["wget", 
    "-O",
    TMPFILE,
    url])

call(["gconftool-2",
    "-t",
    "str",
    "--set",
    "/desktop/gnome/background/picture_options",
    "centred"])
call(["gconftool-2",
    "-t",
    "str",
    "--set",
    "/desktop/gnome/background/primary_color",
    "#ffffffffffff"])
call(["gconftool-2",
    "-t",
    "str",
    "--set",
    "/desktop/gnome/background/secondary_color",
    "#ffffffffffff"])
call(["gconftool-2",
    "-t",
    "str",
    "--set",
    "/desktop/gnome/background/picture_filename",
    TMPFILE])