nsxiv/README.md

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![nsxiv](https://raw.githubusercontent.com/nsxiv/nsxiv/gh-pages/img/logo.png "nsxiv")
**Neo (or New or Not) Simple (or Small or Suckless) X Image Viewer**
--------------------------------------------------------------------
nsxiv is a fork of now unmaintained [sxiv](https://github.com/muennich/sxiv)
with the purpose of maintaining it and adding simple, sensible features.
nsxiv is free software licensed under GPLv2 and aims to be easy to modify and customize.
Please file a bug report if something does not work as documented or
expected in *this* repository, after making sure you are using the latest
release of nsxiv. Contributions are welcome, see
[CONTRIBUTING.md](CONTRIBUTING.md#Contribution-Guideline) for details.
Features
--------
* Basic image operations, e.g. zooming, panning, rotating
* Customizable key and mouse button mappings (in *config.h*)
* Thumbnail mode: grid of selectable previews of all images
* Ability to cache thumbnails for fast re-loading
* Basic support for multi-frame images
* Play GIF animations
* Display image information in status bar
* Display image name/path in X title
Screenshots
-----------
**Image mode: (Default colors)**
![Image](https://raw.githubusercontent.com/nsxiv/nsxiv/gh-pages/img/image.png "Image mode")
**Thumbnail mode: (Custom colors)**
![Thumb](https://raw.githubusercontent.com/nsxiv/nsxiv/gh-pages/img/thumb.png "Thumb mode")
Installing via package manager
------------------------------
nsxiv is available on the following distributions/repositories. If you don't see
your distro listed here, either contact your distro's package maintainer or
consider packaging it yourself and adding it to the respective community repo.
[![Packaging status](https://repology.org/badge/vertical-allrepos/nsxiv.svg)](https://repology.org/project/nsxiv/versions)
Repos not tracked by repology:
* Fedora: Enable the copr repo via `dnf copr enable mamg22/nsxiv`.
Dependencies
------------
nsxiv requires the following software to be installed:
* Imlib2
* X11
The following dependencies are optional.
* inotify : Used for auto-reloading images on change.
Disabled via `HAVE_INOTIFY=0`
* libXft, freetype2, fontconfig : Used for the status bar.
Disabled via `HAVE_LIBFONTS=0`
* giflib : Used for animated gif playback.
Disabled via `HAVE_LIBGIF=0`.
* libexif : Used for auto-orientation and exif thumbnails.
Disable via `HAVE_LIBEXIF=0`
* libwebp : Used for animated webp playback.
Disabled via `HAVE_LIBWEBP=0`.
Please make sure to install the corresponding development packages in case that
you want to build nsxiv on a distribution with separate runtime and development
packages (e.g. \*-dev on Debian).
Building
--------
nsxiv is built using the commands:
$ make
You can pass `HAVE_X=0` to `make` to disable an optional dependency.
For example:
$ make HAVE_LIBEXIF=0
will disable `libexif` support. Alternatively they can be disabled via editing
the `Makefile` directly. `OPT_DEP_DEFAULT=0` can be used to disable all
optional dependencies.
Installing nsxiv:
# make install
Installing desktop entry:
# make install-desktop
Installing icons:
# make install-icon
Installing all of the above:
# make install-all
Please note, that these requires root privileges.
By default, nsxiv is installed using the prefix `/usr/local`, so the full path
of the executable will be `/usr/local/bin/nsxiv`, the `.desktop` entry will be
`/usr/local/share/applications/nsxiv.desktop` and the icon path will be
`/usr/local/share/icons/hicolor/{size}/apps/nsxiv.png`.
You can install nsxiv into a directory of your choice by changing this command to:
$ make PREFIX="/your/dir" install
Example scripts are installed using `EGPREFIX` which defaults to
`/usr/local/share/doc/nsxiv/examples`. You can change `EGPREFIX` the same way
you can change `PREFIX` shown above.
The build-time specific settings of nsxiv can be found in the file *config.h*.
Please check and change them, so that they fit your needs.
If the file *config.h* does not already exist, then you have to create it with
the following command:
$ make config.h
Usage
-----
Please see man page for information on how to use nsxiv. To do so, execute the
following after the installation:
$ man nsxiv
F.A.Q
-----
* Can I open remote urls with nsxiv? <br>
Yes, see [nsxiv-url](https://github.com/nsxiv/nsxiv-extra/tree/master/scripts/nsxiv-url)
* Can I open all the images in a directory? <br>
Yes, see [nsxiv-rifle](https://github.com/nsxiv/nsxiv-extra/tree/master/scripts/nsxiv-rifle)
* Can I set default arguments for nsxiv? <br>
Yes, see [nsxiv-env](https://github.com/nsxiv/nsxiv-extra/tree/master/scripts/nsxiv-env)
* Can I pipe images into nsxiv? <br>
Yes, see [nsxiv-pipe](https://github.com/nsxiv/nsxiv-extra/tree/master/scripts/nsxiv-pipe)
User patches
------------
Due to our limited [project scope](CONTRIBUTING.md#Project-Scope), certain features or
customization cannot be merged into nsxiv mainline. Following the spirit of
suckless software, we host the [nsxiv-extra](https://github.com/nsxiv/nsxiv-extra)
repo where users are free to submit whatever patches or scripts they wish.
Description on how to use or submit patches can be found on
[nsxiv-extra's](https://github.com/nsxiv/nsxiv-extra) README.
Download
--------
You can [browse](https://github.com/nsxiv/nsxiv) the source code repository
on GitHub or get a copy using git with the following command:
$ git clone https://github.com/nsxiv/nsxiv.git
You can view the changelog [here](CHANGELOG.md)