Module: gears.wallpaper
Functions for setting the wallpaper.
There are two levels of functionality provided by this module:
The low-level functionality consists of two functions. set an already-prepared wallpaper on all screens and prepare_context prepares things to draw a new wallpaper.
The low-level API can for example be used to set solid red as a wallpaper (see gears.color for details on the supported syntax):
gears.wallpaper.set("#ff0000")
Ontop of these low-level functions, the remaining functions implement more
useful functionality. For example, given a screen object s, an image can be
set as the wallpaper as follows:
gears.wallpaper.maximized("path/to/image.png", s)
Info:
- Copyright: 2012 Uli Schlachter
- Author: Uli Schlachter
Static module functions
| gears.wallpaper.prepare_context (s) -> () | Prepare the needed state for setting a wallpaper. | |
| gears.wallpaper.set (pattern) | Set the current wallpaper. | |
| gears.wallpaper.centered (surf, s, background, scale) | Set a centered wallpaper. | |
| gears.wallpaper.tiled (surf, s, offset) | Set a tiled wallpaper. | |
| gears.wallpaper.maximized (surf, s, ignore_aspect, offset) | Set a maximized wallpaper. | |
| gears.wallpaper.fit (surf, s, background) | Set a fitting wallpaper. | |
Static module functions
- gears.wallpaper.prepare_context (s) -> ()
-
Prepare the needed state for setting a wallpaper.
This function returns a cairo context through which a wallpaper can be drawn.
The context is only valid for a short time and should not be saved in a
global variable.
Parameters:
- s The screen to set the wallpaper on or nil for all screens
Returns:
- The available geometry (table with entries width and height)
- A cairo context that the wallpaper should be drawn to.
- gears.wallpaper.set (pattern)
-
Set the current wallpaper.
Parameters:
- pattern The wallpaper that should be set. This can be a cairo surface, a description for gears.color or a cairo pattern.
See also:
- gears.wallpaper.centered (surf, s, background, scale)
-
Set a centered wallpaper.
Parameters:
- surf The wallpaper to center. Either a cairo surface or a file name.
- s The screen whose wallpaper should be set. Can be nil, in which case all screens are set.
- background The background color that should be used. Gets handled via gears.color. The default is black.
- scale The scale factor for the wallpaper. Default is 1 (original size).
See also:
- gears.wallpaper.tiled (surf, s, offset)
-
Set a tiled wallpaper.
Parameters:
- surf The wallpaper to tile. Either a cairo surface or a file name.
- s The screen whose wallpaper should be set. Can be nil, in which case all screens are set.
- offset This can be set to a table with entries x and y.
- gears.wallpaper.maximized (surf, s, ignore_aspect, offset)
-
Set a maximized wallpaper.
Parameters:
- surf The wallpaper to set. Either a cairo surface or a file name.
- s The screen whose wallpaper should be set. Can be nil, in which case all screens are set.
- ignore_aspect If this is true, the image's aspect ratio is ignored. The default is to honor the aspect ratio.
- offset This can be set to a table with entries x and y.
- gears.wallpaper.fit (surf, s, background)
-
Set a fitting wallpaper.
Parameters:
- surf The wallpaper to set. Either a cairo surface or a file name.
- s The screen whose wallpaper should be set. Can be nil, in which case all screens are set.
- background The background color that should be used. Gets handled via gears.color. The default is black.
See also: