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