Manpages - xsnow.6

Table of Contents

NAME

xsnow - Snow and Santa on your desktop

SYNOPSIS

xsnow [/OPTION/]…

DESCRIPTION

Xsnow shows an animation of Santa and snow on your desktop. Xsnow can also run in one or more windows, see options -xwininfo, -id . (These options only work satisfactorily in an X11 environment.) Xsnow depends on an X11 environment. This is forced by setting the environment variable GDK_BACKEND=x11 before initializing the GTK. Hopefully, this will ensure that xsnow also runs in a Wayland environment for some time.

If xsnow is misbehaving, try to remove the file $HOME/.xsnowrc.

“General options:

Below:
<n> denotes an unsigned decimal (e.g 123) or octal (e.g. 017) or hex (e.g. 0x50009) number.
<c> denotes a string like “red” or “#123456”.
<f> denotes a file name, like “/home/rick/Pictures/background.jpg”.

-h, -help
print this text.
-H, -manpage
print man page.
-v, -version
prints version of xsnow.
-changelog
prints ChangeLog.
-selfrep
put tar ball on stdout, so you can do:
xsnow -selfrep > xsnow.tar.gz
-display name
Drop the snowflakes on the given display. Make sure the display is nearby, so you can hear them enjoy…
-vintage
Run xsnow in vintage settings.
-defaults
Do not read config file (see FILES).
-noconfig
Do not read or write config file (see FILES).
-hidemenu
Start with hidden interactive menu.
-nomenu
Do not show interactive menu.
-scale <n>
Apply scalefactor (default: 100).
-doublebuffer <n>
1: use double buffering; 0: do not use double buffering (default: 1). Only effective with ’-root’ or ’-id’ or ’-xwininfo’.
-transparency <n>
Transparency in % (default: 0)
-theme <n>
1: use xsnow theme for menu; 0: use system theme (default: 1)
-checkgtk <n>
0: Do not check gtk version before starting the user interface. 1: Check gtk version before starting the user interface. (default: 1).
-id <n>, -window-id <n>
Snow in window with id (for example from xwininfo).
-desktop
Act as if window is a desktop.
-allworkspaces <n>
0: use one desktop for snow, 1: use all desktops (default: 1).
-above
Snow above your windows. Default is to snow below your windows. NOTE: in some environments this results in an un-clickable desktop.
*-xwininfo *
Use a cursor to point at the window you want the snow to be fallen in.
-stopafter <n>
Stop xsnow after so many seconds.
*-root *
Force to paint on (virtual) root window.
Use this for xscreensaver:
Make sure xscreensaver is running, either as a start-up application
or from the command line, e.g:
nohup xscreensaver &
or
nohup xscreensaver -no-capture-stderr &
Run the program xscreensaver-demo to create the file ~/.xscreensaver
In the file ~.xscreensaver add after the line ’programs:’ this line:
xsnow -root
Use the program xscreensaver-demo to select xsnow as screensaver.
You probably want to select: Mode: Only One Screen Saver.
*-bg <f> *
file to be used as background when running under xscreensaver.
*-noisy *
Write extra info about some mouse clicks, X errors etc, to stdout.
-cpuload <n>
How busy is your system with xsnow: the higher, the more load on the system (default: 100).

“Snow options:

-snowflakes <n>
The higher, the more snowflakes are generated per second. Default: 100.
-blowsnow
(Default) Animate blow-off snow.
-noblowsnow
Do not animate blowing snow from trees or windows
*-sc <c> *
Use the given string as color for the flakes (default: #fffafa).
-snowspeedfactor <n>
Multiply the speed of snow with this number/100 (default: 100).
-snowsize <n>
Set size of (non-vintage) snow flakes (default: 8).
*-snow *
(Default) Show snow.
-nosnow -nosnowflakes
Do not show snow.
-flakecountmax <n>
Maximum number of active flakes (default: 300).
-blowofffactor <n>
The higher, the more snow is generated in blow-off scenarios (default: 40).

“Tree options:

-treetype <n>[,<n> …]
Choose tree types: minimum 0, maximum 7 (default: 1,2,3,4,5,6,7,). Thanks to Carla Vermin for numbers >=3! Credits: Image by b0red on Pixabay.
-treetype all
(Default) Use all non-vintage available tree types.
-tc <c>
Use the given string as the color for the vintage tree (default: #7fff00). Works only for treetype 0.
-notrees
Do not display the trees.
-showtrees
(Default) Display the trees.
-trees <n>
Desired number of trees. Default 10.
-treefill <n>
Region in percents of the height of the window where trees grow (default: 30).
-treeoverlap
Allow scenery items to overlap each other (default).
-notreeoverlap
Do not allow scenery items to overlap each other.

“Santa options:

-showsanta
(Default) Display Santa running all over the screen.
-nosanta
Do not display Santa running all over the screen.
-showrudolph
(Default) With Rudolph.
-norudolph
No Rudolph.
-santa <n>
The minimum size of Santa is 0, the maximum size is 4. Default is 3. Thanks to Thomas Linder for the (big) Santa 2! Santa 3 is derived from Santa 2, and shows the required eight reindeer. The appearance of Santa 4 may be a surprise, thanks to Carla Vermin for this one.
-santaspeedfactor <n>
The speed Santa should not be excessive if he doesn’t want to get fined. The appropriate speed for the Santa chosen will be multiplied by santaspeedfactor/100 (default: 100).

“Celestial options:

*-wind *
(Default) It will get windy now and then.
*-nowind *
By default it gets windy now and then. If you prefer quiet weather specify -nowind.
-whirlfactor <n>
This sets the whirl factor, i.e. the maximum adjustment of the horizontal speed. The default value is 100.
-windtimer <n>
With -windtimer you can specify how often it gets windy. It’s sort of a period in seconds, default value is 30.
-stars <n>
The number of stars (default: 20).
-meteorites
(Default) Show meteorites.
-nometeorites
Do not show meteorites.
-moon <n>
1: show moon, 0: do not show moon (default: 1).
Picture of moon thanks to Pedro Lasta on Unsplash.
https://unsplash.com/photos/wCujVcf0JDw
-moonspeed <n>
Speed of moon in pixels/minute (default: 120).
-moonsize <n>
Realtive size of moon (default: 100).
-halo <n>
1: show halo around moon, 0: do not show halo (default: 1).
-halobrightness <n>
Brightness of halo (default: 25).

“Fallen snow options:

-wsnowdepth <n>
Maximum thickness of snow on top of windows (default: 30).
-ssnowdepth <n>
Maximum thickness of snow at the bottom of the screen (default: 50).
-maxontrees <n>
Maximum number of flakes on trees. Default 200.
-keepsnowonwindows
(Default) Keep snow on top of the windows.
-nokeepsnowonwindows
Do not keep snow on top of the windows.
-keepsnowonscreen
(Default) Keep snow at the bottom of the screen.
-nokeepsnowonscreen
Do not keep snow at the bottom of the screen.
-keepsnowontrees
(Default) Keep snow on trees.
-nokeepsnowontrees
Do not keep snow on trees.
-keepsnow
(Default) Have snow sticking anywhere.
-nokeepsnow
Do not have snow sticking anywhere.
-fluffy
(Default) Create fluff on fallen snow.
-nofluffy
Do not create fluff on fallen snow.
-offsetx <n>
Correction for window-manager provided x-coordinate of window. Default 4.
-offsety <n>
Correction for window-manager provided y-coordinate of window. Default 0.
-offsetw <n>
Correction for window-manager provided width of window. Default -8.
-offsets <n>
Correction for bottom coordinate of your screen. A negative value lifts the xsnow screen up. Default 0.
-ignoretop <n>
Do not collect snow on window > 0.8*width of screen and closer than <n> pixels from the top. Sometimes an hidden window is sitting there, but treated as a normal window by xsnow. Default 0.
-ignorebottom <n>
Analog to -ignoretop, but now for the bottom. Default 0.

“Birds options:

-anarchy <n>
Anarchy factor ( 0..100 default: 50).
*-birdscolor <c> *
Use the given string as color for the birds (default: #361A07).
-birdsonly <n>
Show only birds ( 0/1 default: 0).
-birdsspeed <n>
Speed of birds ( 0..300 default: 100).
-disweight <n>
Eagerness to keep desired distance ( 0..100 default: 20).
-focuscentre <n>
Eagerness to fly to the focus ( 0..300 default: 100).
-followneighbours <n>
Eagerness to follow neighbours ( 0..100 default: 30).
-nbirds <n>
Number of birds ( 0..400 default: 70).
-neighbours <n>
Number of neighbours to watch ( 0..20 default: 7).
-prefdistance <n>
Preferred distance to neighbours ( 0..100 default: 40).
-showbirds <n>
Show birds ( 0/1 default: 1).
-showattr <n>
Show attraction point ( 0/1 default: 0).
-followsanta <n>
Birds like Santa ( 0/1 default: 0).
-viewingdistance <n>
Viewing distance ( 0..95 default: 40).
-birdsscale <n>
Scalefactor used painting the birds (default: 100).

“FILES


$HOME/.xsnowrc
Settings are read from and written to this file. See flags -noconfig and -defaults how to influence this behaviour.
NOTE: the following settings are not read or written:
-above -defaults -desktop -fullscreen -noconfig -id
-nomenu -stopafter -xwininfo -display -noisy -checkgtk
$HOME/xsnow/pixmaps/tree.xpm
If present, xsnow will try this file for displaying the trees. The format must be xpm (X PixMap) format, see https://en.wikipedia.org/wiki/X_PixMap .
NOTE: when this file is present, no menu will appear.
$HOME/xsnow/pixmaps/santa<n>.xpm
where <n> = 1,2,3,4. If present, xsnow will try this files (4 of them) for displaying Santa. The format must be xpm (X PixMap) format, see https://en.wikipedia.org/wiki/X_PixMap .
NOTE: when these files are present, no menu will appear.

“EXAMPLES



$ xsnow -defaults # run with defaults.
$ xsnow # run using values from the config file.
$ xsnow -treetype 1,2 # use tree types 1 and 2.

“BUGS



  • Xsnow needs a complete rewrite: the code is a mess.
  • The flags are not consistent, caused by trying to be compatible with

older versions.

  • Xsnow stresses the Xserver too much.
  • Xsnow does run in Wayland, but will not snow on all windows.
  • Xsnow tries to create a click-through window. This is not successful

in for example FVWM/xcompmgr. In that case, xsnow tries to keep the snow window below all others, resulting in a transient effect when you click on the desktop. Sadly, no FVWM menu will appear…

  • Remnants of fluffy snow can persist after removing the fallen snow.

These will gradually disappear, so no big deal.

  • Remnants of meteorites can persist after passage of Santa. These will

eventually be wiped out by snow or Santa.

  • Xsnow tries to adapt its snowing window if the display settings are

changed while xsnow is running. This does not function always well.

  • Xsnow does not play well with ’xcompmgr -a’. In some environments

(Raspberry 64 bit) xcompmgr is started with the flag ’-a’, resulting in a black snow window. Remedy: In a terminal window type: killall xcompmgr nohup xcompmgr -n & and try again.

  • In XFCE, compositing must be enabled for xsnow. Settings -> Window

Manager Tweaks -> Compositor -> Enable display compositing

  • In multi-screen environments, it depends on the display settings if it

is snowing on all screens. Experiment!

COPYRIGHT


This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Author: dt

Created: 2022-02-20 Sun 09:37