vim-sunflower
                                 =============

                                    Synopsis
                                    ````````

This is a vim plugin for adjusting colors depending on the time of the
day. Inspired by the similar plugin for emacs called 'theme-changer'.

                                  Why do this?
                                  ````````````

Apart from comprising ones favourite colours in a favourable
combination, colour themes are what their eyes be subject to throughout
the day and night. While these colours remain unchanged all the day,
however, ones surroundings do not: sun sets and rises, turning day into
night and night into day; and lights get turned on and off. The amount
and quality of light around one determines the intensity of colours
their eyes can tolerate. While brighter, lighter colours are easier ones
eyes during daylight, they start to gnaw them in the night. Dark colors
are suitable for use in the dark or under artificial illumination, but
are tiring during the day.

While it is very useful to switch colour themes based on the amount and
quality of illumination, most people either cannot be bothered to do so,
or forget to do it altogether. This vim plugin is my go at automating
this task, so that it is done for the vim user without they interfering,
and it is done at the first place.


                                  Installation
                                  ````````````

Sunflower depends of PyEphem for sunset and sunrise computations. You
can use the `requirements.txt' file at the project root with `pip'
utility to install anything sunflower depends:

    % pip install -r requirements.txt

or you can install the library yourself:

    % pip install pyephem

Please note that you may need to run these commands with superuser
privileges.

This plugin depends on python scripting feature of Vim. If your build
of vim does not support python scripting, you will need to build vim
from source and enable python support. You will need to have Python
development libraries and headers installed before doing so.

Also, autocommands should be available. You can see elaborate details on
what features are available or not via the `:version' command in vim.

                                 Configuration
                                 `````````````

There are some variables you can use to configure the behaviour of
sunflower. Below is an example configuration, set up for Istanbul. You
will need to find longtitude and latitude values for your city. More
elaborate details on these variables and configuring sunflower can be
found via `:help sunflower-config'.

    let g:sunflower_lat=41
    let g:sunflower_long=28
    let g:sunflower_colorscheme_day='solarized'
    let g:sunflower_colorscheme_night='solarized'

                                    License
                                    ```````

This programme is released under the Two Clause BSD License. The text of
license is available in the LICENSE file, which should be available in
the root folder of this package.