-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Rotates backdrops for X11 displays using Imagemagic.
--   
--   Rotates backdrops for X11 displays using Imagemagic.
@package backdropper
@version 1.2


-- | <ul>
--   <li>Logger logic: a small wrapper to hslogger.</li>
--   </ul>
--   
--   <ul>
--   <li><i><tt>Author</tt></i> Yann Golanski.</li>
--   <li><i><tt>Maintainer</tt></i> Yann Golanski
--   <a>yann@kierun.org</a></li>
--   <li><i><tt>Description</tt></i> Wrapper to hslogger to get the time in
--   front of the message.</li>
--   </ul>
--   
--   (c)2008 Yann Golanski, GPLv3 or above.
--   
--   This program is free software: you can redistribute it and/or modify
--   it under the terms of the GNU General Public License as published by
--   the Free Software Foundation, either version 3 of the License, or (at
--   your option) any later version.
--   
--   This program is distributed in the hope that it will be useful, but
--   WITHOUT ANY WARRANTY; without even the implied warranty of
--   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
--   General Public License for more details.
--   
--   You should have received a copy of the GNU General Public License
--   along with this program. If not, see
--   <a>http://www.gnu.org/licenses/</a>.
module Logger_logic

-- | Prints a logger message.
logger :: Priority -> [Char] -> IO ()


-- | <ul>
--   <li>rotating_wallpaper</li>
--   </ul>
--   
--   <ul>
--   <li><i><tt>Author</tt></i> Yann Golanski.</li>
--   <li><i><tt>Maintainer</tt></i> Yann Golanski
--   <a>yann@kierun.org</a></li>
--   <li><i><tt>Description</tt></i> Wallpapers/Backdrop changer back
--   end.</li>
--   </ul>
--   
--   (c)2008 Yann Golanski, GPLv3 or above.
--   
--   This program is free software: you can redistribute it and/or modify
--   it under the terms of the GNU General Public License as published by
--   the Free Software Foundation, either version 3 of the License, or (at
--   your option) any later version.
--   
--   This program is distributed in the hope that it will be useful, but
--   WITHOUT ANY WARRANTY; without even the implied warranty of
--   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
--   General Public License for more details.
--   
--   You should have received a copy of the GNU General Public License
--   along with this program. If not, see
--   <a>http://www.gnu.org/licenses/</a>.
module Rotating_backdrop_logic

-- | Iterates over all the images, picking a random one each the time.
iterateImages :: [String] -> Int -> IO ()

-- | Reads the list from the master file and starts iterating over it.
mainLoop :: FilePath -> Int -> IO t

-- | Reads a file and return a list those elements are lines.
parseImageFile :: FilePath -> IO [String]

-- | Gets a random number.
getRandomNumber :: Int -> IO Int

-- | Removes an element from a list: Problem 20, 99 Haskell problems.
removeElement :: Int -> [a] -> (a, [a])

-- | Changes the desktop image using qiv:
--   http:<i></i>www.klografx.net<i>qiv</i>index2.html
changeDesktop :: String -> IO ExitCode
breaks :: (a -> Bool) -> [a] -> [[a]]