nsxiv/README.md

![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")


Dependencies
------------

nsxiv requires the following software to be installed:

  * Imlib2
  * X11
  * Xft
  * freetype2
  * fontconfig

The following dependencies are optional.

  * inotify : Used for auto-reloading images on change.
    Disabled via `HAVE_INOTIFY=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>
No, not yet. See [#32](https://github.com/nsxiv/nsxiv/issues/32)


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)