added equalarea layout. icon not included

docs/layouts/layout.md

@@ -11,6 +11,7 @@ bling.layout.mstab
 bling.layout.centered
 bling.layout.vertical
 bling.layout.horizontal
+bling.layout.equalarea
 ```
 
 ### Theme Variables

layout/equalarea.lua

@@ -0,0 +1,70 @@
+local math     = math
+local screen   = screen
+local tonumber = tonumber
+local equalarea = {name = "equalarea"}
+local function divide(p,g,low,high,cls,mwfact,mcount)
+  if low == high then
+    p.geometries[cls[low]] = g
+  else
+    local masters = math.max(0,math.min(mcount,high)-low+1)
+    local numblock = high-low + 1
+    local slaves = numblock - masters
+    local smalldiv
+    if numblock > 5 and (numblock % 5) == 0 then
+      smalldiv = math.floor(numblock/5)
+    else
+      if (numblock % 3) == 0 then
+        smalldiv = math.floor(numblock/3)
+      else
+        smalldiv = math.floor(numblock/2)
+      end
+    end
+    local bigdiv = numblock - smalldiv
+    local smallmasters = math.min(masters,smalldiv)
+    local bigmasters = masters-smallmasters
+    local smallg = {}
+    local bigg = {}
+    smallg.x = g.x
+    smallg.y = g.y
+    if g.width > (g.height*1.3) then
+      smallg.height = g.height
+      bigg.height = g.height
+      bigg.width = math.floor(g.width*(bigmasters*(mwfact-1)+bigdiv)/(slaves+mwfact*masters))
+      smallg.width = g.width-bigg.width
+      bigg.y = g.y
+      bigg.x = g.x + smallg.width
+    else
+      smallg.width = g.width
+      bigg.width = g.width
+      bigg.height = math.floor(g.height*(bigmasters*(mwfact-1)+bigdiv)/(slaves+mwfact*masters))
+      smallg.height = g.height-bigg.height
+      bigg.x = g.x
+      bigg.y = g.y + smallg.height
+    end
+    divide(p,smallg,low,high-bigdiv,cls,mwfact,mcount)
+    divide(p,bigg,low+smalldiv,high,cls,mwfact,mcount)
+  end
+  return
+end
+
+local function arrange(p)
+  local t   = p.tag or screen[p.screen].selected_tag
+  local wa  = p.workarea
+  local cls = p.clients
+
+  if #cls == 0 then return end
+  local mwfact          = t.master_width_factor*2
+  local mcount = t.master_count
+  local g = {}
+  g.height = wa.height
+  g.width = wa.width
+  g.x = wa.x
+  g.y = wa.y
+  divide(p,g,1,#cls,cls,mwfact,mcount)
+end
+
+function equalarea.arrange(p)
+  return arrange(p)
+end
+
+return {layout = equalarea}

layout/init.lua

@@ -12,11 +12,15 @@ beautiful.layout_horizontal = horizontal.get_icon()
 local centered = require(... .. ".centered")
 beautiful.layout_centered = centered.get_icon()
 
+local equalarea = require(... .. ".equalarea")
+
+beautiful.layout_centered = centered.get_icon()
 local layout = {
     mstab = mstab.layout,
     centered = centered.layout,
     vertical = vertical.layout,
-    horizontal = horizontal.layout
+    horizontal = horizontal.layout,
+    equalarea = equalarea.layout
 }
 
 return layout