--[[ Licensed under GNU General Public License v2 * (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) if useless_gap == nil then useless_gap = 0 end local wa = p.workarea local cls = p.clients 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 = {} -- Save actual grid index for use in the useless_gap -- routine. local this_x = 0 local this_y = 0 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 this_x = cell this_y = strip 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 this_x = strip this_y = cell g.x = wa.x + strip * g.width g.y = wa.y + cell * g.height end -- Useless gap. if useless_gap > 0 then -- Top and left clients are shrinked by two steps and -- get moved away from the border. Other clients just -- get shrinked in one direction. if this_x == 0 then g.width = g.width - 2 * useless_gap g.x = g.x + useless_gap else g.width = g.width - useless_gap end if this_y == 0 then g.height = g.height - 2 * useless_gap g.y = g.y + useless_gap else g.height = g.height - useless_gap end end -- End of useless gap. 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