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simple X background setter inspired by imlibsetroot and feh.

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NAME

setroot - sets your wallpaper.

VERSION

release: version 2.0 - 2016-03-13

ABOUT

This program was written as a way for me to learn some C, and also to serve as a personal replacement to the excellent imlibsetroot and feh programs.

I liked feh 's syntax, but I had no use for its image viewing capabilities, so I tried out imlibsetroot. I encountered some segfaults/Imlib errors during usage, so I started hacking it, but ended up just writing my own program based off of it, stripped of extraneous features I saw no need for.

This program in no way constitutes good code. I have absolutely no experience in formal programming or software development, I am merely a lowly math major.

Please, if you have stumbled upon this repository somehow and actually use this program, feel free to critique the hell out of my code and help me improve. My ego died many ages ago in undergrad.

INSTALLATION

If you have libxinerama installed:

sudo make xinerama=1
sudo make install (clean)

If you don’t have libxinerama installed:

sudo make xinerama=0
sudo make install (clean)

DEPENDENCIES

imlib2

libxinerama is an optional dependency (see section INSTALLATION).

INVOCATION

setroot [storage flag] [global flag] { [image flags, manipulations, options] <filename> }+ [monitor flag]

The order of the filenames determines which monitor the wallpaper is set to. The first invoked filename is set to the first Xinerama monitor, the second to the second, and so on.

If more than one image option is applied, the last one takes effect.

If n filenames are supplied for k monitors, where n > k, any invoked filename after the first k will be ignored, unless it is passed a valid --on option (see section IMAGE_FLAGS).

An illegal invocation sequence will result in setroot terminating with exit status 1.

STORAGE FLAGS

--store

creates executable file .setroot-restore located in directory ${XDG_CONFIG_HOME:-$HOME/.config}/setroot

If the directory path and/or file does not exist, it will be created (see section FILES)

--restore

looks for ${XDG_CONFIG_HOME:-$HOME/.config}/setroot/.setroot-restore and executes it in shell (restores your previously set wallpapers and options)

GLOBAL FLAGS

--blank-color #RRGGBB

sets background color of blank walls, unless overriden by --bg-color option

IMAGE FLAGS

--span

have image span all screens (no cropping).

If more than one image is specified, the later image will be spanned.

Note that this overrides the --on option. Note also that further images that are set (in the case of multiple monitors) will "cover" the spanned image.

--bg-color #RRGGBB

set empty space around image to color

--on n

assign image to be wallpaper on Xinerama monitor n

If not all images are passed this option, the unassigned walls will be placed on monitors by their position in the invocation sequence. Images which do have a specified assignment will then be assigned to their monitors, replacing any images which may have already been assigned.

If --on is supplied a screen which does not exist, no error is raised and the other walls are set as normal. This can be used with setroot --store to "preset" an unconnected monitor’s wallpaper.

If setroot was not compiled with Xinerama support (see section INSTALLATION) then --on is considered an invalid command and the program will terminate with exit status 1.

IMAGE MANIPULATIONS

--blur <radius>

blur image

--sharpen <radius>

sharpen image

--brighten <amount>

modify image brightness by amount (between -1 and 1)

--contrast <amount>

modify contrast of image by amount (between -100 and 100)

--flip[hvd]

flip image [h]orizontally, [v]ertically, or [d]iagonally

--tint #RRGGBB

tint image with color #RRGGBB (also accepts valid XColor)

--greyscale

renders image as greyscale (uses luminosity algorithm)

IMAGE OPTIONS

-c, --center

place unscaled image centered and cropped to screen

-t, --tiled

tile image on invoked screen (Xinerama aware)

-s, --stretch

stretch image (disregard aspect) on invoked screen

-z, --zoom

scale image (preserve aspect) to fit screen completely (could cut off image)

-f, --fit

scale image (preserve aspect) to fit screen (entire image on screen) - default

-fh, --fit-height

scale image (preserve aspect) until height matches invoked screen

-fw, --fit-width

scale image (preserve aspect) until width matches invoked screen

-gx, --gravity-x

set the image gravity center in the X axis at position (an integer absolute position or a float percentage) - default: 50%

-gy, --gravity-y

set the image gravity center in the Y axis at position (an integer absolute position or a float percentage) - default: 50%

-sc, --solid-color #RRGGBB

set background to solid color #RRGGBB (hex code)

MONITOR FLAGS

--use-x-geometry

number Xinerama monitors from leftmost to rightmost

--use-y-geometry

number Xinerama monitors from topmost to bottommost

GRAVITY

When the -z option is used, the image is zoomed in to fill the screen and cropped if neccessary. The --gravity-x and --gravity-y parameters let you choose the 'gravity center' of the image: setroot will try to match that center with the display center if possible.

Both parameters can be given in two formats, both relative to the image dimensions: as an integer, which means an absolute coordinate; or as a decimal percentage of the total width or height.

FILES

setroot creates the directory ${XDG_CONFIG_HOME:-$HOME/.config}/setroot and places an executable file .setroot-restore there when setroot --store is invoked for the first time.

setroot --restore executes this file to restore the most recent (valid) invocation of setroot.

AUTHOR

© 2014-2016* Tim Zhou <[email protected]>

CONTRIBUTORS

José Miguel Sánchez García (jmi2k)

ACKNOWLEDGMENTS

set_pixmap_property() is © 1998 Michael Jennings <[email protected]>

find_desktop() is a modification of get_desktop_window()
© 2004-2012 Jonathan Koren <[email protected]>

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simple X background setter inspired by imlibsetroot and feh.

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