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eafab78ce5c5054f1834e616b97e555305f6294c
[etc/awesome.git] / layout / centerwork.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2016,      Henrik Antonsson           
6       * (c) 2015,      Joerg Jaspert              
7       * (c) 2014,      projektile                 
8       * (c) 2013,      Luke Bonham                
9       * (c) 2010-2012, Peter Hofmann              
10                                                   
11 --]]
12
13 local floor  = math.floor
14 local screen = screen
15
16 local centerwork = {
17     name         = "centerwork",
18     horizontal   = { name = "centerworkh" }
19 }
20
21 local function do_centerwork(p, orientation)
22     local t = p.tag or screen[p.screen].selected_tag
23     local wa = p.workarea
24     local cls = p.clients
25
26     if #cls == 0 then return end
27
28     local c = cls[1]
29     local g = {}
30
31     -- Main column, fixed width and height.
32     local mwfact          = t.master_width_factor
33     local mainhei         = floor(wa.height * mwfact)
34     local mainwid         = floor(wa.width * mwfact)
35     local slavewid        = wa.width - mainwid
36     local slaveLwid       = floor(slavewid / 2)
37     local slaveRwid       = slavewid - slaveLwid
38     local slavehei        = wa.height - mainhei
39     local slaveThei       = floor(slavehei / 2)
40     local slaveBhei       = slavehei - slaveThei
41     local nbrFirstSlaves  = floor(#cls / 2)
42     local nbrSecondSlaves = floor((#cls - 1) / 2)
43
44     local slaveFirstDim, slaveSecondDim = 0, 0
45
46     if orientation == "vertical" then
47         if nbrFirstSlaves  > 0 then slaveFirstDim  = floor(wa.height / nbrFirstSlaves) end
48         if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.height / nbrSecondSlaves) end
49
50         g.height = wa.height
51         g.width  = mainwid
52
53         g.x = wa.x + slaveLwid
54         g.y = wa.y
55     else
56         if nbrFirstSlaves  > 0 then slaveFirstDim  = floor(wa.width / nbrFirstSlaves) end
57         if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.width / nbrSecondSlaves) end
58
59         g.height  = mainhei
60         g.width = wa.width
61
62         g.x = wa.x
63         g.y = wa.y + slaveThei
64     end
65
66     if g.width  < 1 then g.width  = 1 end
67     if g.height < 1 then g.height = 1 end
68
69     p.geometries[c] = g
70
71     -- Auxiliary windows.
72     if #cls <= 1 then return end
73     for i = 2,#cls do
74         local c = cls[i]
75         local g = {}
76
77         local rowIndex = floor(i/2)
78
79         if orientation == "vertical" then
80             if i % 2 == 0 then
81                 -- left slave
82                 g.x = wa.x
83                 g.y = wa.y + (rowIndex-1)*slaveFirstDim
84
85                 g.width = slaveLwid
86
87                 -- if last slave in left row use remaining space for that slave
88                 if rowIndex == nbrFirstSlaves then
89                     g.height = wa.y + wa.height - g.y
90                 else
91                     g.height = slaveFirstDim
92                 end
93             else
94                 -- right slave
95                 g.x = wa.x + slaveLwid + mainwid
96                 g.y = wa.y + (rowIndex-1)*slaveSecondDim
97
98                 g.width = slaveRwid
99
100                 -- if last slave in right row use remaining space for that slave
101                 if rowIndex == nbrSecondSlaves then
102                     g.height = wa.y + wa.height - g.y
103                 else
104                     g.height = slaveSecondDim
105                 end
106             end
107         else
108             if i % 2 == 0 then
109                 -- top slave
110                 g.x = wa.x + (rowIndex-1)*slaveFirstDim
111                 g.y = wa.y
112
113                 g.height = slaveThei
114
115                 -- if last slave in top row use remaining space for that slave
116                 if rowIndex == nbrFirstSlaves then
117                     g.width = wa.x + wa.width - g.x
118                 else
119                     g.width = slaveFirstDim
120                 end
121             else
122                 -- bottom slave
123                 g.x = wa.x + (rowIndex-1)*slaveSecondDim
124                 g.y = wa.y + slaveThei + mainhei
125
126                 g.height = slaveBhei
127
128                 -- if last slave in bottom row use remaining space for that slave
129                 if rowIndex == nbrSecondSlaves then
130                     g.width = wa.x + wa.width - g.x
131                 else
132                     g.width = slaveSecondDim
133                 end
134
135             end
136         end
137
138         if g.width  < 1 then g.width  = 1 end
139         if g.height < 1 then g.height = 1 end
140
141         p.geometries[c] = g
142     end
143 end
144
145
146 function centerwork.horizontal.arrange(p)
147     return do_centerwork(p, "horizontal")
148 end
149
150 function centerwork.arrange(p)
151     return do_centerwork(p, "vertical")
152 end
153
154 return centerwork