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asyncshell.request: removed unused argument
[etc/awesome.git] / layout / cascade.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 tag       = require("awful.tag")
12 local beautiful = require("beautiful")
13
14 local cascade =
15 {
16     name     = "cascade",
17     nmaster  = 0,
18     offset_x = 32,
19     offset_y = 8
20 }
21
22 function cascade.arrange(p)
23
24     -- Cascade windows.
25
26     -- A global border can be defined with
27     -- beautiful.global_border_width.
28     local global_border = tonumber(beautiful.global_border_width) or 0
29     if global_border < 0 then global_border = 0 end
30
31     -- Themes border width requires an offset.
32     local bw = tonumber(beautiful.border_width) or 0
33
34     -- Screen.
35     local wa = p.workarea
36     local cls = p.clients
37
38     wa.height = wa.height - ((global_border * 2) + (bw * 2))
39     wa.width = wa.width - ((global_border * 2) + (bw * 2))
40     wa.x = wa.x + global_border
41     wa.y = wa.y + global_border
42
43     -- Opening a new window will usually force all existing windows to
44     -- get resized. This wastes a lot of CPU time. So let's set a lower
45     -- bound to "how_many": This wastes a little screen space but you'll
46     -- get a much better user experience.
47     local t = tag.selected(p.screen)
48     local num_c
49     if cascade.nmaster > 0
50     then
51         num_c = cascade.nmaster
52     else
53         num_c = tag.getnmaster(t)
54     end
55
56     local how_many = #cls
57     if how_many < num_c
58     then
59         how_many = num_c
60     end
61
62     local current_offset_x = cascade.offset_x * (how_many - 1)
63     local current_offset_y = cascade.offset_y * (how_many - 1)
64
65     -- Iterate.
66     for i = 1,#cls,1
67     do
68         local c = cls[i]
69         local g = {}
70
71         g.x = wa.x + (how_many - i) * cascade.offset_x
72         g.y = wa.y + (i - 1) * cascade.offset_y
73         g.width = wa.width - current_offset_x
74         g.height = wa.height - current_offset_y
75
76         c:geometry(g)
77     end
78 end
79
80 return cascade