From: Oleg Broytman Date: Fri, 27 Jan 2006 15:39:56 +0000 (+0000) Subject: XSetBg: select a random image and set it as the desktop wallpaper (display it in... X-Git-Tag: v4.0.0~66 X-Git-Url: https://git.phdru.name/?a=commitdiff_plain;h=9e375793293e76527dddcf4645c4336a51670127;p=xsetbg.git XSetBg: select a random image and set it as the desktop wallpaper (display it in the root window). git-svn-id: file:///home/phd/archive/SVN/xsetbg/trunk@2 143022c7-580b-0410-bae3-87f2bf5d3141 --- diff --git a/print-filename.py b/print-filename.py new file mode 100755 index 0000000..63a1481 --- /dev/null +++ b/print-filename.py @@ -0,0 +1,86 @@ +#! /usr/local/bin/python -O +"""This file is a part of XSetBg. +Author: Oleg BroytMann +Copyright (C) 2004-2006 PhiloSoft Design +""" + +__version__ = "1.3.0" +__author__ = "Oleg BroytMann " +__copyright__ = "Copyright (C) 2004-2006 PhiloSoft Design" +__revision__ = "$Id$"[5:-2] +__date__ = "$Date$"[7:-2] + + +import sys, os, shelve + +def usage(code=0): + sys.stderr.write("Usage: %s [-0|--null] [-o|--old] [-w|--width] [width]\n" % sys.argv[0]) + sys.exit(code) + + +def get_args(): + from getopt import getopt, GetoptError + + try: + options, arguments = getopt(sys.argv[1:], "0ow:", + ["null", "old", "width="]) + except GetoptError: + usage(1) + + print0 = False + old = False + width = None + + for option, value in options: + if option in ("-h", "--help"): + usage() + elif option in ("-0", "--null"): + print0 = True + elif option in ("-o", "--old"): + old = True + elif option in ("-w", "--width"): + width = int(value) + else: + usage(2) + + if arguments: + if width is not None: + usage(3) + elif len(arguments) > 1: + usage(4) + else: + width = int(arguments[0]) + + return print0, old, width + +print0, old, width = get_args() + + +xsetbg_dir = os.path.join(os.environ["HOME"], "lib", "xsetbg") +os.chdir(xsetbg_dir) + +global_db_name = "xsetbg.db" +filename_key = "filename" +old_filename_key = "old_filename" + +global_db = shelve.open(global_db_name, flag='r') +if old: + key = old_filename_key +else: + key = filename_key +filename = global_db[key] +global_db.close() + +if width is not None: + lines = [] + while filename: + lines.append(filename[:width]) + filename = filename[width:] + filename = "\n".join(lines) + +sys.stdout.write(filename) + +if print0: + sys.stdout.write('\0') +else: + print diff --git a/xsetbg-ping b/xsetbg-ping new file mode 100755 index 0000000..2fef273 --- /dev/null +++ b/xsetbg-ping @@ -0,0 +1,16 @@ +#! /bin/sh + +if [ -z "$DISPLAY" ]; then + exit 0 +fi + +if xscreensaver-command -time 2>/dev/null | grep -Eq 'screen (blanked|locked)'; then + exit 0 +fi + +if ps a | grep -v grep | grep -q mplayer; then + exit 0 +fi + +cd "$HOME/lib/xsetbg" +exec readyexec xsetbg.sock diff --git a/xsetbg-start b/xsetbg-start new file mode 100755 index 0000000..6254963 --- /dev/null +++ b/xsetbg-start @@ -0,0 +1,7 @@ +#! /bin/sh + +umask 077 +cd "$HOME/lib/xsetbg" +# Remove stale socket +rm -f xsetbg.sock +PYTHONPATH="`pwd`" python -O "`whence readyexecd.py`" xsetbg.sock xsetbg.run & diff --git a/xsetbg-stop b/xsetbg-stop new file mode 100755 index 0000000..0623f20 --- /dev/null +++ b/xsetbg-stop @@ -0,0 +1,6 @@ +#! /bin/sh + +cd "$HOME/lib/xsetbg" +readyexec --stop xsetbg.sock +# Remove socket +exec rm -f xsetbg.sock diff --git a/xsetbg.conf b/xsetbg.conf new file mode 100644 index 0000000..38342e8 --- /dev/null +++ b/xsetbg.conf @@ -0,0 +1,6 @@ +[images] +directory0 = ~/lib/xsetbg/images + +[xsetbg] +min_pause = 60 ; minimum time in seconds between background image changes +borders = darkcyan, steelblue, midnightblue diff --git a/xsetbg.py b/xsetbg.py new file mode 100755 index 0000000..0a4a3f9 --- /dev/null +++ b/xsetbg.py @@ -0,0 +1,229 @@ +#! /usr/local/bin/python -O +"""Select a random image from $HOME/lib/xsetbg/images subdirectories +and set it as the desktop wallpaper (display it in the root window). + +Author: Oleg BroytMann +Copyright (C) 2000-2006 PhiloSoft Design +""" + +__version__ = "2.17.0" +__author__ = "Oleg BroytMann " +__copyright__ = "Copyright (C) 2000-2006 PhiloSoft Design" +__revision__ = "$Id$"[5:-2] +__date__ = "$Date$"[7:-2] + + +import sys, os + + +def usage(): + sys.stderr.write("%s version %s\n" % (sys.argv[0], __version__)) + sys.stderr.write("Usage: %s [force]\n" % sys.argv[0]) + sys.exit(0) + +def error(error_str, error_code=1): + sys.stderr.write("%s: Error: %s\n" % (sys.argv[0], error_str)) + 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") +os.chdir(xsetbg_dir) + +config = SafeConfigParser() +config.read("xsetbg.conf") + +if config.has_option("images", "directory") or \ + config.has_option("images", "directory0") or \ + config.has_option("images", "directory1"): + image_dirs = [] + if config.has_option("images", "directory"): + image_dirs.append(config.get("images", "directory")) + if config.has_option("images", "directory0"): + image_dirs.append(config.get("images", "directory0")) + if config.has_option("images", "directory1"): + image_dirs.append(config.get("images", "directory1")) + i = 2 + while True: + option = "directory%d" % i + if config.has_option("images", option): + image_dirs.append(config.get("images", option)) + i += 1 + else: + break +else: + image_dirs = ["images"] + +image_dirs = [os.path.join(xsetbg_dir, + os.path.expandvars(os.path.expanduser(dirname))) + for dirname in image_dirs +] + +# minimum time in seconds between background image changes +if config.has_option("xsetbg", "min_pause"): + min_pause = config.getint("xsetbg", "min_pause") +else: + min_pause = 60 + +borders = config.get("xsetbg", "borders").split(',') +if config.has_option("xsetbg", "borders"): + borders = [border.strip() for border in config.get("xsetbg", "borders").split(',')] +else: + borders = ["darkcyan", "steelblue", "midnightblue"] + +del config + + +os.umask(0066) # octal; -rw-------; make the global persistent dictionary + # readable only by the user +global_db_name = "xsetbg.db" + + +import random +import anydbm, shelve +from time import time +from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB + +# Import pickle and all anydbm/shelve internal machinery, so that +# when ReadyExec forks they will be ready. +# Also create the database if it is not exists yet. + +try: + global_db = shelve.open(global_db_name, flag='c') +except anydbm.error, msg: + if str(msg) == "db type could not be determined": + os.remove(global_db_name) + global_db = shelve.open(global_db_name, flag='c') + +global_db.close() # Close DB in parent process + + +# DB keys +timestamp_key = "timestamp" +filename_key = "filename" +old_filename_key = "old_filename" + + +images = [] + +for image_dir in image_dirs: + # List images in all subdirectories + for dirpath, dirs, files in os.walk(image_dir): + images.extend([os.path.join(dirpath, file) for file in files]) + +if not 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() + + force = False + if len(sys.argv) == 2: + if sys.argv[1] == "force": + force = True + else: + usage() + + # Use the program's file as the lock file: + # lock it to prevent two processes run in parallel. + lock_file = open("xsetbg.py", 'r') + try: + flock(lock_file , LOCK_EX|LOCK_NB) + except IOError: # already locked + lock_file.close() + return + + + global_db = None + try: + # Re-seed the RNG; this is neccessary because ReadyExecd forks + # and RNG in a child process got the same seed from the parent + # after every fork. + random.seed() + + # Reopen the global persistent dictionary + global_db = shelve.open(global_db_name, 'w') + + timestamp = global_db.get(timestamp_key) + current_time = time() + + if not force and timestamp is not None and \ + current_time - timestamp < min_pause: # Too early to change background + return + + # Save current time + global_db[timestamp_key] = current_time + + border = random.choice(borders) + image_name = random.choice(images) + 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) + lock_file.close() + # Flush and close the global persistent dictionary + if global_db: global_db.close() + + + 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!") + + +if __name__ == "__main__": + run()