layout/centerwork.lua

   1
   2 --[[
   3
   4      Licensed under GNU General Public License v2
   5       * (c) 2014,      projektile
   6       * (c) 2013,      Luke Bonham
   7       * (c) 2010-2012, Peter Hofmann
   8
   9 --]]
  10
  11 local awful     = require("awful")
  12 local beautiful = require("beautiful")
  13 local tonumber  = tonumber
  14 local math      = { floor = math.floor }
  15
  16 local centerwork =
  17 {
  18     name         = "centerwork",
  19     top_right    = 0,
  20     bottom_right = 1,
  21     bottom_left  = 2,
  22     top_left     = 3
  23 }
  24
  25 function centerwork.arrange(p)
  26     -- A useless gap (like the dwm patch) can be defined with
  27     -- beautiful.useless_gap_width .
  28     local useless_gap = tonumber(beautiful.useless_gap_width) or 0
  29
  30     -- A global border can be defined with
  31     -- beautiful.global_border_width
  32     local global_border = tonumber(beautiful.global_border_width) or 0
  33     if global_border < 0 then global_border = 0 end
  34
  35     -- Screen.
  36     local wa = p.workarea
  37     local cls = p.clients
  38
  39     -- Borders are factored in.
  40     wa.height = wa.height - (global_border * 2)
  41     wa.width = wa.width - (global_border * 2)
  42     wa.x = wa.x + global_border
  43     wa.y = wa.y + global_border
  44
  45     -- Width of main column?
  46     local t = awful.tag.selected(p.screen)
  47     local mwfact = awful.tag.getmwfact(t)
  48
  49     if #cls > 0
  50     then
  51         -- Main column, fixed width and height.
  52         local c = cls[1]
  53         local g = {}
  54         local mainwid = math.floor(wa.width * mwfact)
  55         local slavewid = wa.width - mainwid
  56         local slaveLwid = math.floor(slavewid / 2)
  57         local slaveRwid = slavewid - slaveLwid
  58         local slaveThei = math.floor(wa.height / 2)
  59         local slaveBhei = wa.height - slaveThei
  60
  61         g.height = wa.height - 2*useless_gap - 2*c.border_width
  62         g.width = mainwid - 2*c.border_width
  63         if g.width < 1 then g.width = 1 end
  64         if g.height < 1 then g.height = 1 end
  65         g.x = wa.x + slaveLwid
  66         g.y = wa.y + useless_gap
  67
  68         c:geometry(g)
  69
  70         -- Auxiliary windows.
  71         if #cls > 1
  72         then
  73             local at = 0
  74             for i = 2,#cls
  75             do
  76                 -- It's all fixed. If there are more than 5 clients,
  77                 -- those additional clients will float. This is
  78                 -- intentional.
  79                 if at == 4
  80                 then
  81                     break
  82                 end
  83
  84                 c = cls[i]
  85                 g = {}
  86
  87                 if i - 2 == centerwork.top_left
  88                 then
  89                     -- top left
  90                     g.x = wa.x + useless_gap
  91                     g.y = wa.y + useless_gap
  92                     g.width = slaveLwid - 2*useless_gap - 2*c.border_width
  93                     g.height = slaveThei - useless_gap - 2*c.border_width
  94                 elseif i - 2 == centerwork.top_right
  95                 then
  96                     -- top right
  97                     g.x = wa.x + slaveLwid + mainwid + useless_gap
  98                     g.y = wa.y + useless_gap
  99                     g.width = slaveRwid - 2*useless_gap - 2*c.border_width
 100                     g.height = slaveThei - useless_gap - 2*c.border_width
 101                 elseif i - 2 == centerwork.bottom_left
 102                 then
 103                     -- bottom left
 104                     g.x = wa.x + useless_gap
 105                     g.y = wa.y + slaveThei + useless_gap
 106                     g.width = slaveLwid - 2*useless_gap - 2*c.border_width
 107                     g.height = slaveBhei - 2*useless_gap - 2*c.border_width
 108                 elseif i - 2 == centerwork.bottom_right
 109                 then
 110                     -- bottom right
 111                     g.x = wa.x + slaveLwid + mainwid + useless_gap
 112                     g.y = wa.y + slaveThei + useless_gap
 113                     g.width = slaveRwid - 2*useless_gap - 2*c.border_width
 114                     g.height = slaveBhei - 2*useless_gap - 2*c.border_width
 115                 end
 116
 117                 if g.width < 1 then g.width = 1 end
 118                 if g.height < 1 then g.height = 1 end
 119                 c:geometry(g)
 120
 121                 at = at + 1
 122             end
 123
 124             -- Set remaining clients to floating.
 125             for i = (#cls - 1 - 4),1,-1
 126             do
 127                 c = cls[i]
 128                 awful.client.floating.set(c, true)
 129             end
 130         end
 131     end
 132 end
 133
 134 return centerwork