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e66a15a11223ff865f08686e1d2a8898ff2e7226
[etc/awesome.git] / layout / centerworkd.lua
1
2 --[[
3
4      Licensed under GNU General Public License v2
5       * (c) 2016,      Henrik Antonsson
6       * (c) 2014,      projektile
7       * (c) 2013,      Luke Bonham
8       * (c) 2010-2012, Peter Hofmann
9
10      Based on centerwork.lua
11 --]]
12
13 local awful     = require("awful")
14 local beautiful = require("beautiful")
15 local tonumber  = tonumber
16 local math      = { floor = math.floor }
17
18 local centerworkd =
19 {
20     name         = "centerworkd",
21 }
22
23 function centerworkd.arrange(p)
24     -- A useless gap (like the dwm patch) can be defined with
25     -- beautiful.useless_gap_width .
26     local useless_gap = tonumber(beautiful.useless_gap_width) or 0
27
28     -- A global border can be defined with
29     -- beautiful.global_border_width
30     local global_border = tonumber(beautiful.global_border_width) or 0
31     if global_border < 0 then global_border = 0 end
32
33     -- Screen.
34     local wa = p.workarea
35     local cls = p.clients
36
37     -- Borders are factored in.
38     wa.height = wa.height - (global_border * 2)
39     wa.width = wa.width - (global_border * 2)
40     wa.x = wa.x + global_border
41     wa.y = wa.y + global_border
42
43     -- Width of main column?
44     local t = awful.tag.selected(p.screen)
45     local mwfact = awful.tag.getmwfact(t)
46
47     if #cls > 0
48     then
49         -- Main column, fixed width and height.
50         local c = cls[1]
51         local g = {}
52         local mainwid = math.floor(wa.width * mwfact)
53         local slavewid = wa.width - mainwid
54         local slaveLwid = math.floor(slavewid / 2)
55         local slaveRwid = slavewid - slaveLwid
56         local nbrLeftSlaves = math.floor(#cls / 2)
57         local nbrRightSlaves = math.floor((#cls - 1) / 2)
58
59         local slaveLeftHeight = 0
60         if nbrLeftSlaves > 0 then slaveLeftHeight = math.floor(wa.height / nbrLeftSlaves) end
61         if nbrRightSlaves > 0 then slaveRightHeight = math.floor(wa.height / nbrRightSlaves) end
62
63         g.height = wa.height - 2*useless_gap - 2*c.border_width
64         g.width = mainwid - 2*c.border_width
65         g.x = wa.x + slaveLwid
66         g.y = wa.y + useless_gap
67
68         if g.width < 1 then g.width = 1 end
69         if g.height < 1 then g.height = 1 end
70         c:geometry(g)
71
72         -- Auxiliary windows.
73         if #cls > 1
74         then
75             for i = 2,#cls
76             do
77                 c = cls[i]
78                 g = {}
79
80                 local rowIndex = math.floor(i/2)
81
82                 -- If i is even it should be placed on the left side
83                 if i % 2 == 0
84                 then
85                     -- left slave
86                     g.x = wa.x + useless_gap
87                     g.y = wa.y + useless_gap + (rowIndex-1)*slaveLeftHeight
88
89                     g.width = slaveLwid - 2*useless_gap - 2*c.border_width
90
91                     -- if last slave in left row use remaining space for that slave
92                     if rowIndex == nbrLeftSlaves
93                     then
94                         g.height = wa.y + wa.height - g.y - useless_gap - 2*c.border_width
95                     else
96                         g.height = slaveLeftHeight - useless_gap - 2*c.border_width
97                     end
98                 else
99                     -- right slave
100                     g.x = wa.x + slaveLwid + mainwid + useless_gap
101                     g.y = wa.y + useless_gap + (rowIndex-1)*slaveRightHeight
102
103                     g.width = slaveRwid - 2*useless_gap - 2*c.border_width
104
105                     -- if last slave in right row use remaining space for that slave
106                     if rowIndex == nbrRightSlaves
107                     then
108                         g.height = wa.y + wa.height - g.y - useless_gap - 2*c.border_width
109                     else
110                         g.height = slaveRightHeight - useless_gap - 2*c.border_width
111                     end
112
113                 end
114
115                 if g.width < 1 then g.width = 1 end
116                 if g.height < 1 then g.height = 1 end
117                 c:geometry(g)
118             end
119         end
120     end
121 end
122
123 return centerworkd