lain/layout/uselessfair.lua

109 lines
3.0 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2014, projektile
* (c) 2013, Luke Bonham
* (c) 2012, Josh Komoroske
* (c) 2010-2012, Peter Hofmann
--]]
local beautiful = require("beautiful")
local ipairs = ipairs
local math = { ceil = math.ceil, sqrt = math.sqrt }
local tonumber = tonumber
local uselessfair = {}
local function fair(p, orientation)
-- A useless gap (like the dwm patch) can be defined with
-- beautiful.useless_gap_width.
local useless_gap = tonumber(beautiful.useless_gap_width) or 0
if useless_gap < 0 then useless_gap = 0 end
-- A global border can be defined with
-- beautiful.global_border_width.
local global_border = tonumber(beautiful.global_border_width) or 0
if global_border < 0 then global_border = 0 end
-- Themes border width requires an offset.
local bw = tonumber(beautiful.border_width) or 0
-- Total window size extend
local ext = 2 * bw + useless_gap
-- get our orientation right.
local wa = p.workarea
local cls = p.clients
wa.height = wa.height - 2 * global_border - useless_gap
wa.width = wa.width - 2 * global_border - useless_gap
wa.x = wa.x + useless_gap + global_border
wa.y = wa.y + useless_gap + global_border
if #cls > 0 then
local cells = math.ceil(math.sqrt(#cls))
local strips = math.ceil(#cls / cells)
local cell = 0
local strip = 0
for k, c in ipairs(cls) do
local g = {}
if ( orientation == "east" and #cls > 2 )
or ( orientation == "south" and #cls <= 2 ) then
if #cls < (strips * cells) and strip == strips - 1 then
g.width = wa.width / (cells - ((strips * cells) - #cls))
else
g.width = wa.width / cells
end
g.height = wa.height / strips
g.x = wa.x + cell * g.width
g.y = wa.y + strip * g.height
else
if #cls < (strips * cells) and strip == strips - 1 then
g.height = wa.height / (cells - ((strips * cells) - #cls))
else
g.height = wa.height / cells
end
g.width = wa.width / strips
g.x = wa.x + strip * g.width
g.y = wa.y + cell * g.height
end
g.width = g.width - ext
g.height = g.height - ext
c:geometry(g)
cell = cell + 1
if cell == cells then
cell = 0
strip = strip + 1
end
end
end
end
--- Horizontal fair layout.
-- @param screen The screen to arrange.
uselessfair.horizontal = {}
uselessfair.horizontal.name = "uselessfairh"
function uselessfair.horizontal.arrange(p)
return fair(p, "east")
end
-- Vertical fair layout.
-- @param screen The screen to arrange.
uselessfair.name = "uselessfair"
function uselessfair.arrange(p)
return fair(p, "south")
end
return uselessfair