Wallpaper slideshow software that supports changing image size - Ask Ubuntu
i've found several software applications create slideshows, i've yet see 1 support changing image size (i.e. fit, stretch, fill width, fill height). there software supports this?
introduction
here's thing: if run in terminal dconf watch / , @ same time flip through options in ubuntu settings wallpaper size ( tile, scale, zoom, etc.) see this:
/org/gnome/desktop/background/picture-options 'zoom' /org/gnome/desktop/background/picture-options 'wallpaper' /org/gnome/desktop/background/picture-options 'centered' /org/gnome/desktop/background/picture-options 'scaled' /org/gnome/desktop/background/picture-options 'stretched' /org/gnome/desktop/background/picture-options 'spanned' what mean ? means if have software can flip through wallpaper, should able flip through options, right ?
well, i've written wallpaper slide-show script time before. in past had required options. specific question, modified script deal size, made 1 option required -d corresponds directory slideshow images supposed live.
basic usage
the usage simple: give directory images, give size , , run. simple doing this:
$ ./xml_wallpaper_maker.py -s zoom -d ~/pictures/wallpapers/ you can use -h option show information options , in case forget usage:
$ ./xml_wallpaper_maker.py -h usage: xml_wallpaper_maker.py [-h] -d directory [-t transition] [-l length] [-o] [-s size] serg's xml slideshow creator optional arguments: -h, --help show message , exit -d directory, --directory directory directory images stored. required -t transition, --transition transition transition time in seconds, default 2.5 -l length, --length length time length in seconds per image, default 1800 -o, --overlay enables use of overlay transition -s size, --size size wallpaper,zoom,centered,scaled,stretched,or spanned script source
the script source available both here , on github. if have git, feel free run git clone https://github.com/sergkolo/sergrep.git or download repository files link above. if you're copying here, make sure save file xml_wallpaper_maker.py , make executable chmod +x xml_wallpaper_maker.py.
#!/usr/bin/env python3 # -*- coding: utf-8 -*- # # author: serg kolo , contact: 1047481448@qq.com # date: september 2 , 2016 # purpose: program creates , launches xml slideshow # # tested on: ubuntu 16.04 lts # # # licensed under mit license (mit). # see included license file or notice below. # # copyright © 2016 sergiy kolodyazhnyy # # permission hereby granted, free of charge, person obtaining copy # of software , associated documentation files (the "software"), deal # in software without restriction, including without limitation rights # use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of software, , permit persons whom software # furnished so, subject following conditions: # # above copyright notice , permission notice shall included # in copies or substantial portions of software. # # software provided "as is", without warranty of kind, express or # implied, including not limited warranties of merchantability, # fitness particular purpose , noninfringement. in no event shall # authors or copyright holders liable claim, damages or other # liability, whether in action of contract, tort or otherwise, arising from, # out of or in connection software or use or other dealings in # software. gi.repository import gio import xml.etree.celementtree et import lxml.etree etree import argparse import sys import os def gsettings_set(schema, path, key, value): """set value of gsettings schema""" if path none: gsettings = gio.settings.new(schema) else: gsettings = gio.settings.new_with_path(schema, path) if isinstance(value,list ): return gsettings.set_strv(key, value) if isinstance(value,int): return gsettings.set_int(key, value) if isinstance(value,str): return gsettings.set_string(key,value) def parse_args(): """ parses command-line arguments """ arg_parser = argparse.argumentparser( description='serg\'s xml slideshow creator', ) arg_parser.add_argument( '-d', '--directory', help='directory images stored. required', type=str, required=true ) arg_parser.add_argument( '-t','--transition', type=float, default=2.5, help='transition time in seconds, default 2.5', required=false ) arg_parser.add_argument( '-l','--length', type=float, default=1800.0, help='time length in seconds per image, default 1800', required=false ) arg_parser.add_argument( '-o','--overlay', action='store_true', help='enables use of overlay transition', required=false ) arg_parser.add_argument( '-s','--size', type=str, help='wallpaper,zoom,centered,scaled,stretched,or spanned', default='scaled', required=false ) return arg_parser.parse_args() def main(): """ program entry point""" args = parse_args() xml_file = os.path.join(os.path.expanduser('~'),'.local/share/slideshow.xml') path = os.path.abspath(args.directory) duration = args.length transition_time = args.transition if not os.path.isdir(path): print(path," not directory !") sys.exit(1) filepaths = [os.path.join(path,item) item in os.listdir(path) ] images = [ img img in filepaths if os.path.isfile(img)] filepaths = none images.sort() root = et.element("background") previous = none # write xml data of images , transitions index,img in enumerate(images): if index == 0: previous = img continue image = et.subelement(root, "static") et.subelement(image,"duration").text = str(duration) et.subelement(image,"file").text = previous if args.overlay: transition = et.subelement(root,"transition",type='overlay') else: transition = et.subelement(root,"transition") et.subelement(transition,"duration").text = str(transition_time) et.subelement(transition, "from").text = previous et.subelement(transition, "to").text = img previous = img # write out final image image = et.subelement(root, "static") et.subelement(image,"duration").text = str(duration) et.subelement(image,"file").text = previous # write out final xml data file tree = et.elementtree(root) tree.write(xml_file) # pretty print data data = etree.parse(xml_file) formated_xml = etree.tostring(data, pretty_print = true) open(xml_file,'w') f: f.write(formated_xml.decode()) gsettings_set('org.gnome.desktop.background',none,'picture-options', args.size) gsettings_set('org.gnome.desktop.background',none,'picture-uri','file://' + xml_file) if __name__ == '__main__': main()
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