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cb8370933b660ae496cf562780f7c477f871f4f4
[etc/awesome.git] / layout / centerwork.lua
1 --[[
2
3      Licensed under GNU General Public License v2
4       * (c) 2016,      Henrik Antonsson
5       * (c) 2015,      Joerg Jaspert
6       * (c) 2014,      projektile
7       * (c) 2013,      Luca CPZ
8       * (c) 2010-2012, Peter Hofmann
9
10 --]]
11
12 local floor, max, screen = math.floor, math.max, screen
13
14 local centerwork = {
15     name       = "centerwork",
16     horizontal = { name = "centerworkh" }
17 }
18
19 local function arrange(p, layout)
20     local t   = p.tag or screen[p.screen].selected_tag
21     local wa  = p.workarea
22     local cls = p.clients
23
24     if #cls == 0 then return end
25
26     local c, g = cls[1], {}
27
28     -- Main column, fixed width and height
29     local mwfact          = t.master_width_factor
30     local mainhei         = floor(wa.height * mwfact)
31     local mainwid         = floor(wa.width * mwfact)
32     local slavewid        = wa.width - mainwid
33     local slaveLwid       = floor(slavewid / 2)
34     local slaveRwid       = slavewid - slaveLwid
35     local slavehei        = wa.height - mainhei
36     local slaveThei       = floor(slavehei / 2)
37     local slaveBhei       = slavehei - slaveThei
38     local nbrFirstSlaves  = floor(#cls / 2)
39     local nbrSecondSlaves = floor((#cls - 1) / 2)
40
41     local slaveFirstDim, slaveSecondDim = 0, 0
42
43     if layout.name == "centerwork" then -- vertical
44         if nbrFirstSlaves  > 0 then slaveFirstDim  = floor(wa.height / nbrFirstSlaves) end
45         if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.height / nbrSecondSlaves) end
46
47         g.height = wa.height
48         g.width  = mainwid
49
50         g.x = wa.x + slaveLwid
51         g.y = wa.y
52     else -- horizontal
53         if nbrFirstSlaves  > 0 then slaveFirstDim  = floor(wa.width / nbrFirstSlaves) end
54         if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.width / nbrSecondSlaves) end
55
56         g.height  = mainhei
57         g.width = wa.width
58
59         g.x = wa.x
60         g.y = wa.y + slaveThei
61     end
62
63     g.width  = max(g.width, 1)
64     g.height = max(g.height, 1)
65
66     p.geometries[c] = g
67
68     -- Auxiliary clients
69     if #cls <= 1 then return end
70     for i = 2, #cls do
71         local c, g = cls[i], {}
72         local idxChecker, dimToAssign
73
74         local rowIndex = floor(i/2)
75
76         if layout.name == "centerwork" then
77             if i % 2 == 0 then -- left slave
78                 g.x     = wa.x
79                 g.y     = wa.y + (rowIndex - 1) * slaveFirstDim
80                 g.width = slaveLwid
81
82                 idxChecker, dimToAssign = nbrFirstSlaves, slaveFirstDim
83             else -- right slave
84                 g.x     = wa.x + slaveLwid + mainwid
85                 g.y     = wa.y + (rowIndex - 1) * slaveSecondDim
86                 g.width = slaveRwid
87
88                 idxChecker, dimToAssign = nbrSecondSlaves, slaveSecondDim
89             end
90
91             -- if last slave in row, use remaining space for it
92             if rowIndex == idxChecker then
93                 g.height = wa.y + wa.height - g.y
94             else
95                 g.height = dimToAssign
96             end
97         else
98             if i % 2 == 0 then -- top slave
99                 g.x      = wa.x + (rowIndex - 1) * slaveFirstDim
100                 g.y      = wa.y
101                 g.height = slaveThei
102
103                 idxChecker, dimToAssign = nbrFirstSlaves, slaveFirstDim
104             else -- bottom slave
105                 g.x      = wa.x + (rowIndex - 1) * slaveSecondDim
106                 g.y      = wa.y + slaveThei + mainhei
107                 g.height = slaveBhei
108
109                 idxChecker, dimToAssign = nbrSecondSlaves, slaveSecondDim
110             end
111
112             -- if last slave in row, use remaining space for it
113             if rowIndex == idxChecker then
114                 g.width = wa.x + wa.width - g.x
115             else
116                 g.width = dimToAssign
117             end
118         end
119
120         g.width  = max(g.width, 1)
121         g.height = max(g.height, 1)
122
123         p.geometries[c] = g
124     end
125 end
126
127 function centerwork.arrange(p)
128     return arrange(p, centerwork)
129 end
130
131 function centerwork.horizontal.arrange(p)
132     return arrange(p, centerwork.horizontal)
133 end
134
135 return centerwork