545 lines
11 KiB
Groff
545 lines
11 KiB
Groff
.TH NSXIV 1 nsxiv\-VERSION
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.SH NAME
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nsxiv \- Neo Simple X Image Viewer
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.SH SYNOPSIS
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.B nsxiv
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.RB [ \-abcfhiopqrtvZ0 ]
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.RB [ \-A
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.IR FRAMERATE ]
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.RB [ \-e
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.IR WID ]
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.RB [ \-G
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.IR GAMMA ]
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.RB [ \-g
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.IR GEOMETRY ]
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.RB [ \-N
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.IR NAME ]
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.RB [ \-n
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.IR NUM ]
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.RB [ \-S
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.IR DELAY ]
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.RB [ \-s
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.IR MODE ]
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.RB [ \-z
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.IR ZOOM ]
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.IR FILE ...
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.SH DESCRIPTION
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nsxiv is a simple image viewer for X.
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.P
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It has two modes of operation: image and thumbnail mode. The default is image
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mode, in which only the current image is shown. In thumbnail mode a grid of
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small previews is displayed, making it easy to choose an image to open.
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.P
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Please note, that the fullscreen mode requires an EWMH/NetWM-compliant window
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manager.
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.SH OPTIONS
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.TP
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.BI "\-A " FRAMERATE
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Play animations with a constant frame rate set to
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.IR FRAMERATE .
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.TP
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.B \-a
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Play animations of multi-frame images.
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.TP
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.B \-b
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Do not show statusbar at the bottom of the window.
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.TP
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.B \-c
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Remove all orphaned cache files from the thumbnail cache directory and exit.
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.TP
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.BI "\-e " WID
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Embed nsxiv's window into window whose ID is
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.IR WID .
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.TP
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.B \-f
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Start in fullscreen mode.
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.TP
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.BI "\-G " GAMMA
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Set image gamma to GAMMA (\-32..32).
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.TP
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.BI "\-g " GEOMETRY
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Set window position and size. See section GEOMETRY SPECIFICATIONS of X(7) for
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more information on GEOMETRY argument.
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.TP
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.BI "\-N " NAME
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Set the resource name of nsxiv's X window to NAME.
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.TP
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.BI "\-n " NUM
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Start at picture number NUM.
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.TP
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.B \-h
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Print brief usage information to standard output and exit.
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.TP
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.B \-i
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Read names of files to open from standard input. Also done if FILE is `-'.
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.TP
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.B \-o
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Write list of all marked files to standard output when quitting. In combination
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with
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.B \-i
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nsxiv can be used as a visual filter/pipe.
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.TP
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.B \-p
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Enable private mode, in which nsxiv does not write any cache or temporary files.
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.TP
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.B \-q
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Be quiet, and disable warnings to standard error stream.
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.TP
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.B \-r
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Search the given directories recursively for images to view.
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.TP
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.BI "\-S " DELAY
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Start in slideshow mode. Set the delay between images to
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.I DELAY
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seconds.
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.I DELAY
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may be a floating-point number.
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.TP
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.BI "\-s " MODE
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Set scale mode according to MODE character. Supported modes are: [d]own,
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[f]it, [F]ill, [w]idth, [h]eight.
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.TP
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.B \-t
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Start in thumbnail mode.
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.TP
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.B \-v
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Print version information to standard output and exit.
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.TP
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.B \-Z
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The same as `\-z 100'.
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.TP
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.BI "\-z " ZOOM
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Set zoom level to ZOOM percent.
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.TP
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.B \-0
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Use NULL-separator. With this option, output of \-o and file-list sent to the
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key-handler and the input of \-i will be separated by a NULL character.
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.SH KEYBOARD COMMANDS
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.SS General
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The following keyboard commands are available in both image and thumbnail modes:
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.TP
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.BR 0 \- 9
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Prefix the next command with a number (denoted via
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.IR count ).
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.TP
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.B q
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Quit nsxiv.
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.TP
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.B Return
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Switch to thumbnail mode / open selected image in image mode.
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.TP
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.B f
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Toggle fullscreen mode.
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.TP
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.B b
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Toggle visibility of statusbar at the bottom of the window.
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.TP
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.B Ctrl-x
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Send the next key to the external key-handler. See section EXTERNAL KEY HANDLER
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for more information.
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.TP
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.B g
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Go to the first image.
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.TP
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.B G
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Go to the last image, or image number
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.IR count .
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.TP
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.B r
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Reload image.
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.TP
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.B D
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Remove current image from file list and go to next image.
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.TP
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.BR Ctrl-h ", " Ctrl-Left
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Scroll left one screen width.
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.TP
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.BR Ctrl-j ", " Ctrl-Down
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Scroll down one screen height.
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.TP
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.BR Ctrl-k ", " Ctrl-Up
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Scroll up one screen height.
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.TP
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.BR Ctrl-l ", " Ctrl-Right
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Scroll right one screen width.
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.TP
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.BR +
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Zoom in.
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.TP
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.B \-
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Zoom out.
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.TP
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.B m
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Mark/unmark the current image.
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.TP
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.B M
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Mark/unmark all images starting from the last marked/unmarked image up to the
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current one.
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.TP
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.B Ctrl-m
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Reverse all image marks.
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.TP
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.B Ctrl-u
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Remove all image marks.
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.TP
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.B N
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Go
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.I count
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marked images forward.
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.TP
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.B P
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Go
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.I count
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marked images backward.
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.TP
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.B {
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Decrease gamma correction by
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.I count
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steps.
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.TP
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.B }
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Increase gamma correction by
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.I count
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steps.
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.TP
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.B Ctrl-g
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Reset gamma correction.
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.SS Thumbnail mode
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The following keyboard commands are only available in thumbnail mode:
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.TP
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.BR h ", " Left
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Move selection left
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.I count
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times.
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.TP
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.BR j ", " Down
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Move selection down
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.I count
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times.
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.TP
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.BR k ", " Up
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Move selection up
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.I count
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times.
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.TP
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.BR l ", " Right
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Move selection right
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.I count
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times.
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.TP
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.B R
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Reload all thumbnails.
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.SS Image mode
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The following keyboard commands are only available in image mode:
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.TP
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Navigate image list:
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.TP
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.BR n ", " Space
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Go
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.I count
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images forward.
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.TP
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.BR p ", " Backspace
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Go
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.I count
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images backward.
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.TP
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.B [
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Go
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.I count
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* 10 images backward.
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.TP
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.B ]
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Go
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.I count
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* 10 images forward.
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.TP
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Handle multi-frame images:
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.TP
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.B Ctrl-n
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Go
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.I count
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frames of a multi-frame image forward.
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.TP
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.B Ctrl-p
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Go
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.I count
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frames of a multi-frame image backward.
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.TP
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.BR Ctrl-a ", " Ctrl-Space
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Play/stop animations of multi-frame images.
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.TP
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Panning:
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.TP
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.BR h ", " Left
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Scroll image 1/5 of window width or
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.I count
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pixels left.
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.TP
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.BR j ", " Down
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Scroll image 1/5 of window height or
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.I count
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pixels down.
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.TP
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.BR k ", " Up
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Scroll image 1/5 of window height or
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.I count
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pixels up.
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.TP
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.BR l ", " Right
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Scroll image 1/5 of window width or
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.I count
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pixels right.
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.TP
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.B H
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Scroll to left image edge.
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.TP
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.B J
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Scroll to bottom image edge.
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.TP
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.B K
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Scroll to top image edge.
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.TP
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.B L
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Scroll to right image edge.
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.TP
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.B z
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Scroll to image center.
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.TP
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Zooming:
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.TP
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.B =
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Set zoom level to 100%, or
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.IR count %.
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.TP
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.B w
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Set zoom level to 100%, but fit large images into window.
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.TP
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.B W
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Fit image to window.
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.TP
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.B F
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Fill image to window.
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.TP
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.B e
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Fit image to window width.
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.TP
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.B E
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Fit image to window height.
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.TP
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Rotation:
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.TP
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.B <
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Rotate image counter-clockwise by 90 degrees.
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.TP
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.B >
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Rotate image clockwise by 90 degrees.
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.TP
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.B ?
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Rotate image by 180 degrees.
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.TP
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Flipping:
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.TP
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.B |
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Flip image horizontally.
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.TP
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.B _
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Flip image vertically.
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.TP
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Miscellaneous:
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.TP
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.B a
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Toggle anti-aliasing.
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.TP
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.B A
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Toggle visibility of alpha-channel, i.e. image transparency.
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.TP
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.B s
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Toggle slideshow mode and/or set the delay between images to
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.I count
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seconds.
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.SH MOUSE COMMANDS
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.SS Thumbnail mode
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The following mouse mappings are available in thumbnail mode:
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.TP
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.B Button1
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Select the image. Goes into image mode if double\-clicked.
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.TP
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.B Button3
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Mark/unmark the image. Dragging while holding down Button3 will mark/unmark
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multiple images.
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.TP
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.B Button4
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Scroll up by one row.
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.TP
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.B Button5
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Scroll down by one row.
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.TP
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.B Ctrl-Button4
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Scroll up by one page.
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.TP
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.B Ctrl-Button5
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Scroll down by one page.
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.SS Image mode
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The following mouse mappings are available in image mode:
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.TP
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.B Button1
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Go to the next image if the mouse cursor is in the right part of the window or
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to the previous image if it is in the left part.
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.TP
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.B Ctrl-Button1
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Pan the image relative to the mouse cursor.
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.TP
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.B Button2
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Pan the image according to the mouse cursor position in the window while
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keeping this button pressed down.
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.TP
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.B Button3
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Switch to thumbnail mode.
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.TP
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.B Button4
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Zoom in.
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.TP
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.B Button5
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Zoom out.
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.SH CONFIGURATION
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The following X resources are supported:
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.TP
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.B window.background
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Color of the window background
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.TP
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.B window.foreground
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Color of the window foreground
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.TP
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.B bar.font
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Name of Xft bar font
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.TP
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.B bar.background
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Color of the bar background. Defaults to window.background
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.TP
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.B bar.foreground
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Color of the bar foreground. Defaults to window.foreground
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.TP
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.B mark.foreground
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Color of the mark foreground. Defaults to window.foreground
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.TP
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Please see xrdb(1) on how to change them.
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.SH WINDOW TITLE
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The window title can be replaced with the output of a user-provided script,
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which is called by nsxiv whenever there's a redraw. The path of this script is
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.I $XDG_CONFIG_HOME/nsxiv/exec/win-title
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and the arguments given to it (where "Optional" arguments might be empty) are:
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.IP $1 4
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resolved absolute path of the current file
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.IP $2 4
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current file number
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.IP $3 4
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total file count
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.IP $4 4
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image width (Optional: Disabled on thumbnails mode)
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.IP $5 4
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image height (Optional: Disabled on thumbnails mode)
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.IP $6 4
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current zoom (Optional: Disabled on thumbnails mode)
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.P
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The term file is used rather than image as nsxiv does not precheck that the
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input files are valid images. Total file count may be different from the actual
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count of valid images.
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.P
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There is also an example script installed together with nsxiv as
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.IR EGPREFIX/win-title .
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.SH STATUS BAR
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The information displayed on the left side of the status bar can be replaced
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with the output of a user-provided script, which is called by nsxiv whenever an
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image gets loaded. The path of this script is
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.I $XDG_CONFIG_HOME/nsxiv/exec/image-info
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and the arguments given to it are:
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.IP $1 4
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path to image file
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.IP $2 4
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image width
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.IP $3 4
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image height
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.P
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There is also an example script installed together with nsxiv as
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.IR EGPREFIX/image-info .
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.SH EXTERNAL KEY HANDLER
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Additional external keyboard commands can be defined using a handler program
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located in
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.IR $XDG_CONFIG_HOME/nsxiv/exec/key-handler .
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The handler is invoked by pressing
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.BR Ctrl-x .
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The next key combo is passed as its first argument. Passed via stdin are the
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images to act upon: all marked images, if in thumbnail mode and at least one
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image has been marked, otherwise the current image. nsxiv(1) will block until
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the handler terminates. It then checks which images have been modified and
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reloads them.
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By default nsxiv(1) will send one image per-line to stdin, however when using
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\-0 the image list will be NULL separated and the environment variable
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"$NSXIV_USING_NULL" will be set to 1.
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The key combo argument has the following form: "[C-][M-][S-]KEY",
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where C/M/S indicate Ctrl/Meta(Alt)/Shift modifier states and KEY is the X
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keysym as listed in /usr/include/X11/keysymdef.h without the "XK_" prefix.
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If KEY has an uppercase equivalent, S-KEY is resolved into it. For instance,
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K replaces S-k and Scedilla replaces S-scedilla, but S-Delete is sent as-is.
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There is also an example script installed together with nsxiv as
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.IR EGPREFIX/key-handler .
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.SH THUMBNAIL CACHING
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nsxiv stores all thumbnails under
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.IR $XDG_CACHE_HOME/nsxiv/ .
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.P
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Use the command line option
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.I \-c
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to remove all orphaned cache files. Additionally, run the following command
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afterwards inside the cache directory to remove empty subdirectories:
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.P
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.RS
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find . \-depth \-type d \-empty ! \-name '.' \-exec rmdir {} \\;
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.RE
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.SH ORIGINAL AUTHOR
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.EX
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Bert Muennich <ber.t at posteo.de>
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.EE
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.SH CURRENT MAINTAINERS
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.EX
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N-R-K <nrk at disroot.org>
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Berke Kocaoğlu <berke.kocaoglu at metu.edu.tr>
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TAAPArthur <taaparthur at gmail.com>
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eylles <ed.ylles1997 at gmail.com>
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mamg22 <marcomonizg at gmail.com>
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LuXu
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explosion-mental <explosion0mental at gmail.com>
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Guilherme Freire
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Stein Gunnar Bakkeby <bakkeby at gmail.com>
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Anupam Ashish Minz
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Sam Whitehead
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Kian Kasad <kian at kasad.com>
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qsmodo
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.EE
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.SH CONTRIBUTORS
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.EX
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Bastien Dejean <nihilhill at gmail.com>
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Dave Reisner <d at falconindy.com>
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Fung SzeTat <sthorde at gmail.com>
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Max Voit <mvdev at with-eyes.net>
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For additional contributors, run `git shortlog -s` in the nsxiv repository.
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.EE
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.SH HOMEPAGE
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.TP
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Website:
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.EE
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https://nsxiv.github.io/nsxiv/
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.EX
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.TP
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Source code:
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.EE
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https://github.com/nsxiv/nsxiv
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.EX
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.SH SEE ALSO
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.BR X (7),
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.BR xrdb (1)
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