40 lines
1.2 KiB
Lua
40 lines
1.2 KiB
Lua
---------------------------------------------------------------------------
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-- @author Uli Schlachter
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-- @copyright 2012 Uli Schlachter
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-- @release @AWESOME_VERSION@
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---------------------------------------------------------------------------
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local setmetatable = setmetatable
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local type = type
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local capi = { awesome = awesome }
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local cairo = require("lgi").cairo
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if tonumber(require("lgi.version")) <= 0.5 then
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error("lgi too old, need at least version 0.7 (not yet released?) or recent git")
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end
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module("gears.surface")
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--- Try to convert the argument into an lgi cairo surface.
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-- This is usually needed for loading images by file name.
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function load(surface)
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-- Nil is not changed
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if not surface then
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return nil
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end
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-- lgi cairo surfaces don't get changed either
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if cairo.Surface:is_type_of(surface) then
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return surface
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end
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-- Strings are assumed to be file names and get loaded
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if type(surface) == "string" then
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surface = capi.awesome.load_image(surface)
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end
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-- Everything else gets forced into a surface
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return cairo.Surface(surface, true)
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end
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setmetatable(_M, { __call = function(_, ...) return load(...) end })
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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