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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
10Features
11--------
12
13* Basic image operations, e.g. zooming, panning, rotating
14* Customizable key and mouse button mappings (in *config.h*)
15* Thumbnail mode: grid of selectable previews of all images
16* Ability to cache thumbnails for fast re-loading
17* Basic support for multi-frame images
18* Display image information in window title
19
20Additional features, that need to be enabled at compile-time (in *config.h*):
21
22* Load all frames from GIF files and play GIF animations
23* Auto-orientate JPEG images according to their EXIF tags
24
25Screenshots
26-----------
27
28Image mode:
29
30 <img src="http://github.com/muennich/sxiv/raw/master/sample/image.png">
31
32Thumbnail mode:
33
34 <img src="http://github.com/muennich/sxiv/raw/master/sample/thumb.png">
35
36Installation
37------------
38sxiv is built using the commands:
39
40 $ make
41 # make install
42
43Please note, that the latter one requires root privileges.
44By default, sxiv is installed using the prefix "/usr/local", so the full path
45of the executable will be "/usr/local/bin/sxiv".
46
47You can install sxiv into a directory of your choice by changing the second
48command to:
49
50 # make PREFIX="/your/dir" install
51
52The build-time specific settings of sxiv can be found in the file *config.h*.
53Please check and change them, so that they fit your needs.
54
55Usage
56-----
57sxiv has two modes of operation: image and thumbnail mode. The default is
58image mode, in which only the current image is shown. In thumbnail mode a grid
59of small previews is displayed, making it easy to choose an image to open.
60
61sxiv supports the following command-line options:
62
63 -c Remove all orphaned cache files from thumbnail cache and exit
64 -d Scale all images to 100%, but fit large images into window
65 -F Use size-hints to make the window fixed/floating
66 -f Start in fullscreen mode
67 -g GEOMETRY Set window position and size
68 (see section GEOMETRY SPECIFICATIONS of X(7))
69 -n NUM Start at picture NUM
70 -p Pixelize, i.e. turn off image anti-aliasing
71 -q Be quiet, disable warnings
72 -r Search given directories recursively for images
73 -s Scale all images to fit into window
74 -t Start in thumbnail mode
75 -v Print version information and exit
76 -Z Same as `-z 100'
77 -z ZOOM Scale all images to current zoom level, use ZOOM at startup
78
79The following key mappings are available; differences between image view and
80thumbnail mode are denoted via brackets:
81
82 q Quit sxiv
83 Return Switch to thumbnail mode [open selected image]
84
85 n,Space Go to the next image
86 p,Backspace Go to the previous image
87 g,G Go to [select] first/last image
88 [,] Go 10 images backward/forward
89
90 Ctrl-n,p Go to the next/previous frame of a multi-frame image
91 Ctrl-Space Play/pause animation of a multi-frame image
92
93 +,= Zoom in
94 - Zoom out
95 0 Set zoom level to 100%
96 w Fit image into window
97
98 h,j,k,l Pan image [move selection] left/down/up/right
99 (also with arrow keys)
100 H,J,K,L Pan to left/bottom/top/right image edge
101 Ctrl-h,j,k,l Pan image one window width/height left/down/up/right
102 (also with Ctrl-arrow keys)
103
104 <,> Rotate image (counter-)clockwise by 90 degrees
105
106 W Resize window to fit image
107 f Toggle fullscreen mode (requires an EWMH/NetWM compliant
108 window manager)
109
110 a Toggle anti-aliasing
111 A Toggle visibility of alpha-channel, i.e. transparency
112 D Remove image from file list and go to [select] next image
113 r Reload image
114
115Additionally, the following mouse mappings are available:
116
117 Button1 Go to the next image
118 [select image/open image if it is already selected]
119 Button2 Drag image with mouse while keeping it pressed
120 Button3 Go to the previous image
121 ScrollUp Pan image up [scroll up one thumbnail row]
122 ScrollDown Pan image down [scroll down one thumbnail row]
123 Shift+ScrollUp Pan image left
124 Shift+ScrollDown Pan image right
125 Ctrl+ScrollUp Zoom in
126 Ctrl+ScrollDown Zoom out