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aff27710dc8d31a208fad53200499de762431f9e
[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,      Luke Bonham
8       * (c) 2010-2012, Peter Hofmann
9
10 --]]
11
12 local floor  = math.floor
13 local screen = screen
14
15 local centerwork = {
16     name         = "centerwork",
17     horizontal   = { name = "centerworkh" }
18 }
19
20 local function do_centerwork(p, orientation)
21     local t = p.tag or screen[p.screen].selected_tag
22     local wa = p.workarea
23     local cls = p.clients
24
25     if #cls == 0 then return end
26
27     local c = cls[1]
28     local g = {}
29
30     -- Main column, fixed width and height.
31     local mwfact          = t.master_width_factor
32     local mainhei         = floor(wa.height * mwfact)
33     local mainwid         = floor(wa.width * mwfact)
34     local slavewid        = wa.width - mainwid
35     local slaveLwid       = floor(slavewid / 2)
36     local slaveRwid       = slavewid - slaveLwid
37     local slavehei        = wa.height - mainhei
38     local slaveThei       = floor(slavehei / 2)
39     local slaveBhei       = slavehei - slaveThei
40     local nbrFirstSlaves  = floor(#cls / 2)
41     local nbrSecondSlaves = floor((#cls - 1) / 2)
42
43     local slaveFirstDim, slaveSecondDim = 0, 0
44
45     if orientation == "vertical" then
46         if nbrFirstSlaves  > 0 then slaveFirstDim  = floor(wa.height / nbrFirstSlaves) end
47         if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.height / nbrSecondSlaves) end
48
49         g.height = wa.height
50         g.width  = mainwid
51
52         g.x = wa.x + slaveLwid
53         g.y = wa.y
54     else
55         if nbrFirstSlaves  > 0 then slaveFirstDim  = floor(wa.width / nbrFirstSlaves) end
56         if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.width / nbrSecondSlaves) end
57
58         g.height  = mainhei
59         g.width = wa.width
60
61         g.x = wa.x
62         g.y = wa.y + slaveThei
63     end
64
65     if g.width  < 1 then g.width  = 1 end
66     if g.height < 1 then g.height = 1 end
67
68     p.geometries[c] = g
69
70     -- Auxiliary windows.
71     if #cls <= 1 then return end
72     for i = 2,#cls do
73         local c = cls[i]
74         local g = {}
75
76         local rowIndex = floor(i/2)
77
78         if orientation == "vertical" then
79             if i % 2 == 0 then
80                 -- left slave
81                 g.x = wa.x
82                 g.y = wa.y + (rowIndex-1)*slaveFirstDim
83
84                 g.width = slaveLwid
85
86                 -- if last slave in left row use remaining space for that slave
87                 if rowIndex == nbrFirstSlaves then
88                     g.height = wa.y + wa.height - g.y
89                 else
90                     g.height = slaveFirstDim
91                 end
92             else
93                 -- right slave
94                 g.x = wa.x + slaveLwid + mainwid
95                 g.y = wa.y + (rowIndex-1)*slaveSecondDim
96
97                 g.width = slaveRwid
98
99                 -- if last slave in right row use remaining space for that slave
100                 if rowIndex == nbrSecondSlaves then
101                     g.height = wa.y + wa.height - g.y
102                 else
103                     g.height = slaveSecondDim
104                 end
105             end
106         else
107             if i % 2 == 0 then
108                 -- top slave
109                 g.x = wa.x + (rowIndex-1)*slaveFirstDim
110                 g.y = wa.y
111
112                 g.height = slaveThei
113
114                 -- if last slave in top row use remaining space for that slave
115                 if rowIndex == nbrFirstSlaves then
116                     g.width = wa.x + wa.width - g.x
117                 else
118                     g.width = slaveFirstDim
119                 end
120             else
121                 -- bottom slave
122                 g.x = wa.x + (rowIndex-1)*slaveSecondDim
123                 g.y = wa.y + slaveThei + mainhei
124
125                 g.height = slaveBhei
126
127                 -- if last slave in bottom row use remaining space for that slave
128                 if rowIndex == nbrSecondSlaves then
129                     g.width = wa.x + wa.width - g.x
130                 else
131                     g.width = slaveSecondDim
132                 end
133
134             end
135         end
136
137         if g.width  < 1 then g.width  = 1 end
138         if g.height < 1 then g.height = 1 end
139
140         p.geometries[c] = g
141     end
142 end
143
144
145 function centerwork.horizontal.arrange(p)
146     return do_centerwork(p, "horizontal")
147 end
148
149 function centerwork.arrange(p)
150     return do_centerwork(p, "vertical")
151 end
152
153 return centerwork