 | backdropper-1.1: Rotates backdrops for X11 displays using qiv. | Source code | Contents | Index |
| Rotating_backdrop_logic |
- rotating_wallpaper
- Author
- Yann Golanski.
- Maintainer
- Yann Golanski yann@kierun.org
- Description
- Wallpapers/Backdrop changer back end.
(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 http://www.gnu.org/licenses/.
| iterateImages :: [String] -> Int -> IO () |
| mainLoop :: FilePath -> Int -> IO t |
| parseImageFile :: FilePath -> IO [String] |
| getRandomNumber :: Int -> IO Int |
| removeElement :: Int -> [a] -> (a, [a]) |
| changeDesktop :: String -> IO ExitCode |
| iterateImages | Source |
| :: [String] | The list of images. |
| -> Int | A delay. |
| -> IO () | An IO result -- in this case, a new backdrop. |
| Iterates over all the images, picking a random one each the time. | |
| mainLoop | Source |
| :: | |
| => FilePath | A path/name to the configuration file. |
| -> Int | A delay. |
| -> IO t | An exit code. |
| Reads the list from the master file and starts iterating over it. | |
| parseImageFile | Source |
| :: FilePath | The path/name to a configuration file. |
| -> IO [String] | A list those elements are lines. |
| Reads a file and return a list those elements are lines. | |
| getRandomNumber | Source |
| :: Int | Maxium range (starts at 0) |
| -> IO Int | A random number. |
| Gets a random number. | |
| removeElement | Source |
| :: | |
| => Int | |
| -> [a] | A list. |
| -> (a, [a]) | A list of an entry and the rest of the original list. |
| Removes an element from a list: Problem 20, 99 Haskell problems. | |
| changeDesktop | Source |
| :: String | The path to an image. |
| -> IO ExitCode | An exit code from the shell running qiv. |
| Changes the desktop image using qiv: http:www.klografx.netqivindex2.html | |