Docs: General work on gears module.

Signed-off-by: Ignas Anikevicius (gns_ank) <anikevicius@gmail.com>
This commit is contained in:
Ignas Anikevicius (gns_ank) 2014-05-19 14:15:39 +01:00 committed by Daniel Hahler
parent de10f5e4f0
commit 00f558ff92
7 changed files with 36 additions and 28 deletions

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@ -2,6 +2,7 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter -- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @module gears.color
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local setmetatable = setmetatable local setmetatable = setmetatable
@ -19,11 +20,13 @@ local color = { mt = {} }
local pattern_cache = setmetatable({}, { __mode = 'v' }) local pattern_cache = setmetatable({}, { __mode = 'v' })
--- Parse a HTML-color. --- Parse a HTML-color.
-- This function can parse colors like #rrggbb and #rrggbbaa. -- This function can parse colors like `#rrggbb` and `#rrggbbaa`.
-- For example, parse_color("#00ff00ff") would return 0, 1, 0, 1.
-- Thanks to #lua for this. :) -- Thanks to #lua for this. :)
--
-- @param col The color to parse -- @param col The color to parse
-- @return 4 values which each are in the range [0, 1]. -- @return 4 values which each are in the range [0, 1].
-- @usage -- This will return 0, 1, 0, 1
-- gears.color.parse_color("#00ff00ff")
function color.parse_color(col) function color.parse_color(col)
local rgb = {} local rgb = {}
for pair in string.gmatch(col, "[^#].") do for pair in string.gmatch(col, "[^#].") do
@ -39,7 +42,8 @@ function color.parse_color(col)
end end
--- Find all numbers in a string --- Find all numbers in a string
-- @param s The string to parse --
-- @tparam string s The string to parse
-- @return Each number found as a separate value -- @return Each number found as a separate value
local function parse_numbers(s) local function parse_numbers(s)
local res = {} local res = {}
@ -50,6 +54,7 @@ local function parse_numbers(s)
end end
--- Create a solid pattern --- Create a solid pattern
--
-- @param col The color for the pattern -- @param col The color for the pattern
-- @return A cairo pattern object -- @return A cairo pattern object
function color.create_solid_pattern(col) function color.create_solid_pattern(col)
@ -63,6 +68,7 @@ function color.create_solid_pattern(col)
end end
--- Create an image pattern from a png file --- Create an image pattern from a png file
--
-- @param file The filename of the file -- @param file The filename of the file
-- @return a cairo pattern object -- @return a cairo pattern object
function color.create_png_pattern(file) function color.create_png_pattern(file)
@ -237,7 +243,7 @@ end
--- Check if a pattern is opaque. --- Check if a pattern is opaque.
-- A pattern is transparent if the background on which it gets drawn (with -- A pattern is transparent if the background on which it gets drawn (with
-- operator OVER) doesn't influence the visual result. -- operator OVER) doesn't influence the visual result.
-- @param col An argument that @{create_pattern} accepts -- @param col An argument that `create_pattern` accepts.
-- @return The pattern if it is surely opaque, else nil -- @return The pattern if it is surely opaque, else nil
function color.create_opaque_pattern(col) function color.create_opaque_pattern(col)
local pattern = color.create_pattern(col) local pattern = color.create_pattern(col)

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@ -2,6 +2,7 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter -- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @module gears.debug
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local error = error local error = error
@ -11,12 +12,12 @@ local print = print
local type = type local type = type
local pairs = pairs local pairs = pairs
-- gears.debug
local debug = {} local debug = {}
--- Check that the given condition holds true, else throw an error --- Check that the given condition holds true, else throw an error
--
-- @param cond If this is false, throw a lua error with a backtrace. -- @param cond If this is false, throw a lua error with a backtrace.
-- @param message Message to print in the error (optional). -- @param[opt] message Message to print in the error (optional).
function debug.assert(cond, message) function debug.assert(cond, message)
local message = message or cond local message = message or cond
if not cond then if not cond then

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@ -2,9 +2,9 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter -- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @module gears
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
--- gears
return return
{ {

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@ -2,6 +2,7 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter -- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @classmod gears.object
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local setmetatable = setmetatable local setmetatable = setmetatable
@ -9,7 +10,6 @@ local pairs = pairs
local type = type local type = type
local error = error local error = error
-- gears.object
local object = { mt = {} } local object = { mt = {} }
-- Verify that obj is indeed a valid object as returned by new() -- Verify that obj is indeed a valid object as returned by new()
@ -60,10 +60,11 @@ function object:disconnect_signal(name, func)
end end
--- Emit a signal --- Emit a signal
--
-- @param name The name of the signal -- @param name The name of the signal
-- @param ... Extra arguments for the callback functions. Each connected -- @param ... Extra arguments for the callback functions. Each connected
-- function receives the object as first argument and then any extra -- function receives the object as first argument and then any extra arguments
-- arguments that are given to emit_signal() -- that are given to emit_signal()
function object:emit_signal(name, ...) function object:emit_signal(name, ...)
local sig = find_signal(self, name, "emit") local sig = find_signal(self, name, "emit")
for func in pairs(sig) do for func in pairs(sig) do

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@ -2,6 +2,7 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter -- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @module gears.sort
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local setmetatable = setmetatable local setmetatable = setmetatable
@ -9,7 +10,6 @@ local ipairs = ipairs
local table = table local table = table
local error = error local error = error
-- gears.sort
local sort = { mt = {} } local sort = { mt = {} }
local function less_than_comp(a, b) local function less_than_comp(a, b)

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@ -2,6 +2,7 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2012 Uli Schlachter -- @copyright 2012 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @module gears.surface
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local setmetatable = setmetatable local setmetatable = setmetatable
@ -15,7 +16,6 @@ if tonumber(ver_major) <= 0 and tonumber(ver_minor) < 7 then
error("lgi too old, need at least version 0.7.0") error("lgi too old, need at least version 0.7.0")
end end
-- gears.surface
local surface = { mt = {} } local surface = { mt = {} }
local surface_cache = setmetatable({}, { __mode = 'v' }) local surface_cache = setmetatable({}, { __mode = 'v' })

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@ -2,13 +2,13 @@
-- @author Uli Schlachter -- @author Uli Schlachter
-- @copyright 2012 Uli Schlachter -- @copyright 2012 Uli Schlachter
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
-- @module gears.wallpaper
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local cairo = require("lgi").cairo local cairo = require("lgi").cairo
local color = require("gears.color") local color = require("gears.color")
local surface = require("gears.surface") local surface = require("gears.surface")
-- gears.wallpaper
local wallpaper = { mt = {} } local wallpaper = { mt = {} }
-- The size of the root window -- The size of the root window
@ -30,8 +30,8 @@ end
--- Prepare the needed state for setting a wallpaper --- Prepare the needed state for setting a wallpaper
-- @param s The screen to set the wallpaper on or nil for all screens -- @param s The screen to set the wallpaper on or nil for all screens
-- @return The available geometry (table with entries width and height), a -- @return The available geometry (table with entries width and height), a
-- that should be used for setting the wallpaper and a cairo context -- that should be used for setting the wallpaper and a cairo context for
-- for drawing to this surface -- drawing to this surface
local function prepare_wallpaper(s) local function prepare_wallpaper(s)
local geom = s and screen[s].geometry or root_geom local geom = s and screen[s].geometry or root_geom
local img = surface(root.wallpaper()) local img = surface(root.wallpaper())