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nsxivREADME.md

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1sxiv: Simple (or small or suckless) X Image Viewer
2
3sxiv is an alternative to feh and qiv. Its only dependency besides xlib is
4imlib2. The primary goal for writing sxiv is to create an image viewer, which
5only has the most basic features required for fast image viewing (the ones I
6want). It has vi key bindings and works nicely with tiling window managers.
7Its code base should be kept small and clean to make it easy for you to dig
8into it and customize it for your needs.
9
10Installation
11============
12sxiv is built using the commands:
13
14 $ make
15 # make install
16
17Please note, that the latter one requires root privileges.
18By default, sxiv is installed using the prefix "/usr/local", so the full path
19of the executable will be "/usr/local/bin/sxiv".
20
21You can install it into a directory of your choice by changing the second
22command to:
23
24 # make PREFIX="/your/dir" install
25
26All build-time specific settings can be found in the file "config.h". Please
27check and change them, so that they fit your needs.
28
29Additional features
30-------------------
31
32The XFLAGS and XLIBS macros/environment variables control which additional
33features (i.e. non-default compile-time features) should be enabled and
34included during compilation.
35
36The following table lists the available additional features--the column
37*Requires* indicates, which libraries need to be installed for a feature; the
38columns *XFLAGS* and *XLIBS* show, what needs to be added to these
39macros/environment variables to enable the corresponding feature:
40
41 Feature | Requires | XFLAGS | XLIBS
42 ----------------------------------+----------+----------------+--------
43 GIF support: Load all frames and | giflib | -DGIF_SUPPORT | -lgif
44 play animations of GIF files | | |
45 ----------------------------------+----------+----------------+--------
46 EXIF support: auto-orientate JPEG | libexif | -DEXIF_SUPPORT | -lexif
47 files according to their EXIF tag | | |
48
49For instance, to enable GIF and EXIF support, the giflib and libexif libraries
50need to be installed on your system and you either need to change the first
51build command to:
52
53 $ make XFLAGS="-DGIF_SUPPORT -DEXIF_SUPPORT" XLIBS="-lgif -lexif"
54
55Or you need to run the following commands before building sxiv:
56
57 $ export XFLAGS="-DGIF_SUPPORT -DEXIF_SUPPORT"
58 $ export XLIBS="-lgif -lexif"
59
60Usage
61=====
62sxiv has two modes of operation: image and thumbnail mode. The default is image
63mode, in which only the current image is shown. In thumbnail mode a grid of
64small previews is displayed, making it easy to choose an image to open.
65
66sxiv supports the following command-line options:
67
68 -c Remove all orphaned cache files from thumbnail cache and exit
69 -d Scale all images to 100%, but fit large images into window
70 -F Use size-hints to make the window fixed/floating
71 -f Start in fullscreen mode
72 -g GEOMETRY Set window position and size
73 (see section GEOMETRY SPECIFICATIONS of X(7))
74 -n NUM Start at picture NUM
75 -p Pixelize, i.e. turn off image anti-aliasing
76 -q Be quiet, disable warnings
77 -r Search given directories recursively for images
78 -s Scale all images to fit into window
79 -t Start in thumbnail mode
80 -v Print version information and exit
81 -Z Same as `-z 100'
82 -z ZOOM Scale all images to current zoom level, use ZOOM at startup
83
84The following key mappings are available; differences between image view and
85thumbnail mode are denoted via brackets:
86
87 q Quit sxiv
88 Return Switch to thumbnail mode [open selected image]
89
90 n,Space Go to the next image
91 p,Backspace Go to the previous image
92 g,G Go to [select] first/last image
93 [,] Go 10 images backward/forward
94
95 Ctrl-n,p Go to the next/previous frame of a multi-frame image
96 Ctrl-Space Play/pause animation of a multi-frame image
97
98 +,= Zoom in
99 - Zoom out
100 0 Set zoom level to 100%
101 w Fit image into window
102
103 h,j,k,l Pan image [move selection] left/down/up/right
104 (also with arrow keys)
105 H,J,K,L Pan to left/bottom/top/right image edge
106 Ctrl-h,j,k,l Pan image one window width/height left/down/up/right
107 (also with Ctrl-arrow keys)
108
109 <,> Rotate image (counter-)clockwise by 90 degrees
110
111 W Resize window to fit image
112 f Toggle fullscreen mode (requires an EWMH/NetWM compliant
113 window manager)
114
115 a Toggle anti-aliasing
116 A Toggle visibility of alpha-channel, i.e. transparency
117 D Remove image from file list and go to [select] next image
118 r Reload image
119
120Additionally, the following mouse mappings are available:
121
122 Button1 Go to the next image
123 [select image/open image if it is already selected]
124 Button2 Drag image with mouse while keeping it pressed
125 Button3 Go to the previous image
126 ScrollUp Pan image up [scroll up one thumbnail row]
127 ScrollDown Pan image down [scroll down one thumbnail row]
128 Shift+ScrollUp Pan image left
129 Shift+ScrollDown Pan image right
130 Ctrl+ScrollUp Zoom in
131 Ctrl+ScrollDown Zoom out