Added dynamic centerwork layout

Centerwork layout that is not restricted to 5 clients

layout/centerworkd.lua

@@ -0,0 +1,123 @@
+
+--[[
+
+     Licensed under GNU General Public License v2
+      * (c) 2016,      Henrik Antonsson
+      * (c) 2014,      projektile
+      * (c) 2013,      Luke Bonham
+      * (c) 2010-2012, Peter Hofmann
+
+     Based on centerwork.lua
+--]]
+
+local awful     = require("awful")
+local beautiful = require("beautiful")
+local tonumber  = tonumber
+local math      = { floor = math.floor }
+
+local centerworkd =
+{
+    name         = "centerworkd",
+}
+
+function centerworkd.arrange(p)
+    -- 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
+
+    -- 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
+
+    -- Screen.
+    local wa = p.workarea
+    local cls = p.clients
+
+    -- Borders are factored in.
+    wa.height = wa.height - (global_border * 2)
+    wa.width = wa.width - (global_border * 2)
+    wa.x = wa.x + global_border
+    wa.y = wa.y + global_border
+
+    -- Width of main column?
+    local t = awful.tag.selected(p.screen)
+    local mwfact = awful.tag.getmwfact(t)
+
+    if #cls > 0
+    then
+        -- Main column, fixed width and height.
+        local c = cls[1]
+        local g = {}
+        local mainwid = math.floor(wa.width * mwfact)
+        local slavewid = wa.width - mainwid
+        local slaveLwid = math.floor(slavewid / 2)
+        local slaveRwid = slavewid - slaveLwid
+        local nbrLeftSlaves = math.floor(#cls / 2)
+        local nbrRightSlaves = math.floor((#cls - 1) / 2)
+
+        local slaveLeftHeight = 0
+        if nbrLeftSlaves > 0 then slaveLeftHeight = math.floor(wa.height / nbrLeftSlaves) end
+        if nbrRightSlaves > 0 then slaveRightHeight = math.floor(wa.height / nbrRightSlaves) end
+
+        g.height = wa.height - 2*useless_gap - 2*c.border_width
+        g.width = mainwid - 2*c.border_width
+        g.x = wa.x + slaveLwid
+        g.y = wa.y + useless_gap
+
+        if g.width < 1 then g.width = 1 end
+        if g.height < 1 then g.height = 1 end
+        c:geometry(g)
+
+        -- Auxiliary windows.
+        if #cls > 1
+        then
+            for i = 2,#cls
+            do
+                c = cls[i]
+                g = {}
+
+                local rowIndex = math.floor(i/2)
+
+                -- If i is even it should be placed on the left side
+                if i % 2 == 0
+                then
+                    -- left slave
+                    g.x = wa.x + useless_gap
+                    g.y = wa.y + useless_gap + (rowIndex-1)*slaveLeftHeight
+
+                    g.width = slaveLwid - 2*useless_gap - 2*c.border_width
+
+                    -- if last slave in left row use remaining space for that slave
+                    if rowIndex == nbrLeftSlaves
+                    then
+                        g.height = wa.y + wa.height - g.y - useless_gap - 2*c.border_width
+                    else
+                        g.height = slaveLeftHeight - useless_gap - 2*c.border_width
+                    end
+                else
+                    -- right slave
+                    g.x = wa.x + slaveLwid + mainwid + useless_gap
+                    g.y = wa.y + useless_gap + (rowIndex-1)*slaveRightHeight
+
+                    g.width = slaveRwid - 2*useless_gap - 2*c.border_width
+
+                    -- if last slave in right row use remaining space for that slave
+                    if rowIndex == nbrRightSlaves
+                    then
+                        g.height = wa.y + wa.height - g.y - useless_gap - 2*c.border_width
+                    else
+                        g.height = slaveRightHeight - useless_gap - 2*c.border_width
+                    end
+
+                end
+
+                if g.width < 1 then g.width = 1 end
+                if g.height < 1 then g.height = 1 end
+                c:geometry(g)
+            end
+        end
+    end
+end
+
+return centerworkd