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8bcbf6029d537bbfce202678178b2fa1ea7f326c
[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 tag         = require("awful.tag")
14 local tonumber    = tonumber
15 local math        = { floor = math.floor }
16
17 local centerwork = {
18     name         = "centerwork",
19     horizontal   = { name = "centerworkh" }
20 }
21
22 local function do_centerwork(p, orientation)
23     -- Screen.
24     local wa  = p.workarea
25     local cls = p.clients
26
27     if #cls <= 0 then return end
28
29     -- Useless gaps.
30     local useless_gap = p.useless_gap or 0
31
32     local c = cls[1]
33     local g = {}
34
35     -- Main column, fixed width and height.
36     local mwfact          = tag.object.get_master_width_factor(t)
37     local mainhei         = math.floor(wa.height * mwfact)
38     local mainwid         = math.floor(wa.width * mwfact)
39     local slavewid        = wa.width - mainwid
40     local slaveLwid       = math.floor(slavewid / 2)
41     local slaveRwid       = slavewid - slaveLwid
42     local slavehei        = wa.height - mainhei
43     local slaveThei       = math.floor(slavehei / 2)
44     local slaveBhei       = slavehei - slaveThei
45     local nbrFirstSlaves  = math.floor(#cls / 2)
46     local nbrSecondSlaves = math.floor((#cls - 1) / 2)
47
48     local slaveFirstDim, slaveSecondDim = 0, 0
49
50     if orientation == "vertical" then
51         if nbrFirstSlaves  > 0 then slaveFirstDim  = math.floor(wa.height / nbrFirstSlaves) end
52         if nbrSecondSlaves > 0 then slaveSecondDim = math.floor(wa.height / nbrSecondSlaves) end
53
54         g.height = wa.height - 2*useless_gap - 2*c.border_width
55         g.width  = mainwid - 2*c.border_width
56
57         g.x = wa.x + slaveLwid
58         g.y = wa.y + useless_gap
59     else
60         if nbrFirstSlaves  > 0 then slaveFirstDim  = math.floor(wa.width / nbrFirstSlaves) end
61         if nbrSecondSlaves > 0 then slaveSecondDim = math.floor(wa.width / nbrSecondSlaves) end
62
63         g.height  = mainhei - 2*c.border_width
64         g.width = wa.width - 2*useless_gap - 2*c.border_width
65
66         g.x = wa.x + useless_gap
67         g.y = wa.y + slaveThei
68     end
69
70     if g.width  < 1 then g.width  = 1 end
71     if g.height < 1 then g.height = 1 end
72
73     c:geometry(g)
74
75     -- Auxiliary windows.
76     if #cls <= 1 then return end
77     for i = 2,#cls do
78         local c = cls[i]
79         local g = {}
80
81         local rowIndex = math.floor(i/2)
82
83         if orientation == "vertical" then
84             if i % 2 == 0 then
85                 -- left slave
86                 g.x = wa.x + useless_gap
87                 g.y = wa.y + useless_gap + (rowIndex-1)*slaveFirstDim
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 == nbrFirstSlaves then
93                     g.height = wa.y + wa.height - g.y - useless_gap - 2*c.border_width
94                 else
95                     g.height = slaveFirstDim - useless_gap - 2*c.border_width
96                 end
97             else
98                 -- right slave
99                 g.x = wa.x + slaveLwid + mainwid + useless_gap
100                 g.y = wa.y + useless_gap + (rowIndex-1)*slaveSecondDim
101
102                 g.width = slaveRwid - 2*useless_gap - 2*c.border_width
103
104                 -- if last slave in right row use remaining space for that slave
105                 if rowIndex == nbrSecondSlaves then
106                     g.height = wa.y + wa.height - g.y - useless_gap - 2*c.border_width
107                 else
108                     g.height = slaveSecondDim - useless_gap - 2*c.border_width
109                 end
110             end
111         else
112             if i % 2 == 0 then
113                 -- top slave
114                 g.x = wa.x + useless_gap + (rowIndex-1)*slaveFirstDim
115                 g.y = wa.y + useless_gap
116
117                 g.height = slaveThei - 2*useless_gap - 2*c.border_width
118
119                 -- if last slave in top row use remaining space for that slave
120                 if rowIndex == nbrFirstSlaves then
121                     g.width = wa.x + wa.width - g.x - useless_gap - 2*c.border_width
122                 else
123                     g.width = slaveFirstDim - useless_gap - 2*c.border_width
124                 end
125             else
126                 -- bottom slave
127                 g.x = wa.x + useless_gap + (rowIndex-1)*slaveFirstDim
128                 g.y = wa.y + slaveThei + mainhei + useless_gap
129
130                 g.height = slaveBhei - 2*useless_gap - 2*c.border_width
131
132                 -- if last slave in bottom row use remaining space for that slave
133                 if rowIndex == nbrSecondSlaves then
134                     g.width = wa.x + wa.width - g.x - useless_gap - 2*c.border_width
135                 else
136                     g.width = slaveSecondDim - useless_gap - 2*c.border_width
137                 end
138
139             end
140         end
141
142         if g.width  < 1 then g.width  = 1 end
143         if g.height < 1 then g.height = 1 end
144
145         c:geometry(g)
146     end
147 end
148
149
150 function centerwork.horizontal.arrange(p)
151     return do_centerwork(p, "horizontal")
152 end
153
154 function centerwork.arrange(p)
155     return do_centerwork(p, "vertical")
156 end
157
158 return centerwork