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#!/usr/bin/python
# Reads a given directory and set a random
# wallpaper using the images on that dir.
import subprocess
import os
import os.path
import sys
import random
if not 'WALLPAPERDIR' in os.environ:
sys.stderr.write('WALLPAPERDIR variable not set, using default value.\n')
d = os.path.expandvars('${HOME}/${FVWM_USERDIR}/images')
else:
d = os.path.expandvars('${WALLPAPERDIR}')
sys.stderr.write('Trying directory %s.\n'%d)
if not os.path.isdir(d):
sys.stderr.write('Path %s is not a directory, aborting.\n'%d)
sys.exit(-1)
files = os.listdir(d)
random.seed()
try:
f = random.choice(files)
except IndexError:
sys.stderr.write('No files in dir %s, aborting.\n'%d)
sys.exit(-1)
sys.stderr.write('Selected file %s.\n'%f)
try:
p = subprocess.Popen('xdpyinfo', stdout = subprocess.PIPE)
for line in p.stdout:
if 'dimensions' in line:
res = line.split()[1]
break
sys.stderr.write('X screen resolution is %s.\n'%res)
except (OSError, IndexError, NameError):
sys.stderr.write('Error getting X screen resolution, aborting.\n')
sys.exit(-1)
try:
subprocess.check_call(['convert', os.path.join(d, f), '-resize', res, os.path.expandvars('${FVWM_USERDIR}/tmp/current_wall.png')])
except subprocess.CalledProcessError:
sys.stderr.write('Error resizing the wallpaper. Is Imagemagick installed?\n')
sys.exit(-1)
try:
subprocess.check_call(['feh', '--bg-center', os.path.expandvars('${FVWM_USERDIR}/tmp/current_wall.png')])
except subprocess.CalledProcessError:
sys.stderr.write('Error setting the wallpaper. Is feh installed?\n')
sys.exit(-1)
sys.exit(0)
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