-#! /usr/local/bin/python -O
-"""Select a random image from $HOME/lib/xsetbg/images subdirectories
-and set it as the desktop wallpaper (display it in the root window).
+#! /usr/bin/env python
+"""Set a random background image (XWin)
+
+Select a random image from a (list of) directory(s)
+and set it as the desktop wallpaper (display it in the root window)
+using xli or xsetbg programs.
-Author: Oleg BroytMann <phd@phd.pp.ru>
-Copyright (C) 2000-2006 PhiloSoft Design
"""
-__version__ = "3.0.0"
-__author__ = "Oleg BroytMann <phd@phd.pp.ru>"
-__copyright__ = "Copyright (C) 2000-2006 PhiloSoft Design"
+__version__ = "$Revision$"[11:-2]
__revision__ = "$Id$"[5:-2]
__date__ = "$Date$"[7:-2]
+__author__ = "Oleg BroytMann <phd@phd.pp.ru>"
+__copyright__ = "Copyright (C) 2000-2009 PhiloSoft Design"
+__license__ = "GNU GPL"
+
import sys, os
sys.exit(error_code)
-xwininfo = os.popen("xwininfo -root", 'r')
-xwininfo_lines = xwininfo.read()
-rc = xwininfo.close()
-if rc:
- error("calling xwininfo", rc)
-
-screen_width = None
-screen_height = None
-for line in xwininfo_lines.split('\n'):
- line = line.strip()
- if line.startswith("Width: "):
- screen_width = int(line[len("Width: "):])
- elif line.startswith("Height: "):
- screen_height = int(line[len("Height: "):])
-
-if not screen_width or not screen_height:
- error("parsing xwininfo output")
-
-
from ConfigParser import SafeConfigParser
xsetbg_dir = os.path.join(os.environ["HOME"], "lib", "xsetbg")
global_db_name = "xsetbg.db"
+# DB keys
+timestamp_key = "timestamp"
+filename_key = "filename"
+old_filename_key = "old_filename"
+
+
import random
import anydbm, shelve
from time import time
os.remove(global_db_name)
global_db = shelve.open(global_db_name, flag='c')
-global_db.close() # Close DB in parent process
+# Remove old filenames
+old_time = time() - min_delay
+to_delete = [timestamp_key]
+for key in global_db.keys():
+ if key.startswith('/') and global_db[key] < old_time:
+ to_delete.append(key)
-# DB keys
-timestamp_key = "timestamp"
-filename_key = "filename"
-old_filename_key = "old_filename"
+for key in to_delete:
+ try:
+ del global_db[key]
+ except KeyError:
+ pass
+
+global_db.close() # Close DB in the parent process
images = []
error("No images found. Abort.")
-try:
- from PIL import Image
- use_PIL = True
-except ImportError:
- use_PIL = False
-
-
def run():
if len(sys.argv) not in (1, 2):
usage()
break
global_db[image_name] = current_time
- border = random.choice(borders)
- root, ext = os.path.splitext(image_name)
-
# Save filename
if global_db.has_key(filename_key):
global_db[old_filename_key] = global_db[filename_key]
global_db[filename_key] = image_name
- placement_options = []
- if use_PIL:
- image = Image.open(image_name, 'r')
- im_w, im_h = image.size
- del image
- if (im_w > screen_width) or (im_h > screen_height):
- zoom = min(screen_width*100//im_w, screen_height*100//im_h)
- if zoom > 0: placement_options = ["-zoom", str(zoom)]
-
finally:
# Unlock and close the lock file
flock(lock_file , LOCK_UN)
# Flush and close the global persistent dictionary
if global_db: global_db.close()
+ program_options = ["xli", "xli", "-onroot", "-quiet"] + \
+ ["-center", "-border", random.choice(borders), "-zoom", "auto",
+ image_name]
- if ext.lower() in (".bmp", ".png"):
- # xsetbg does not recognize BMP files.
- # PNG files have gamma settings, and xli can adapt it to the display gamma;
- # xloadimage/xview/xsetbg display them with wrong gamma.
- program_options = ["xli", "xli", "-onroot", "-quiet"] + placement_options + \
- ["-center", "-border", border, image_name]
- os.execlp(*program_options)
- error("cannot execute xli!")
- else:
- # ...but xli failed to load many image types, use xsetbg for them
- program_options = ["xsetbg", "xsetbg"] + placement_options + \
- ["-center", "-border", border, image_name]
- os.execlp(*program_options)
- error("cannot execute xsetbg!")
+ os.execlp(*program_options)
+ error("cannot execute xli!")
if __name__ == "__main__":