mirror of https://github.com/lcpz/lain.git
136 lines
4.0 KiB
Lua
136 lines
4.0 KiB
Lua
--[[
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Licensed under GNU General Public License v2
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* (c) 2016, Henrik Antonsson
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* (c) 2015, Joerg Jaspert
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* (c) 2014, projektile
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* (c) 2013, Luca CPZ
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* (c) 2010-2012, Peter Hofmann
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--]]
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local floor, max, screen = math.floor, math.max, screen
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local centerwork = {
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name = "centerwork",
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horizontal = { name = "centerworkh" }
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}
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local function arrange(p, layout)
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local t = p.tag or screen[p.screen].selected_tag
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local wa = p.workarea
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local cls = p.clients
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if #cls == 0 then return end
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local c, g = cls[1], {}
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-- Main column, fixed width and height
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local mwfact = t.master_width_factor
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local mainhei = floor(wa.height * mwfact)
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local mainwid = floor(wa.width * mwfact)
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local slavewid = wa.width - mainwid
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local slaveLwid = floor(slavewid / 2)
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local slaveRwid = slavewid - slaveLwid
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local slavehei = wa.height - mainhei
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local slaveThei = floor(slavehei / 2)
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local slaveBhei = slavehei - slaveThei
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local nbrFirstSlaves = floor(#cls / 2)
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local nbrSecondSlaves = floor((#cls - 1) / 2)
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local slaveFirstDim, slaveSecondDim = 0, 0
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if layout.name == "centerwork" then -- vertical
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if nbrFirstSlaves > 0 then slaveFirstDim = floor(wa.height / nbrFirstSlaves) end
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if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.height / nbrSecondSlaves) end
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g.height = wa.height
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g.width = mainwid
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g.x = wa.x + slaveLwid
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g.y = wa.y
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else -- horizontal
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if nbrFirstSlaves > 0 then slaveFirstDim = floor(wa.width / nbrFirstSlaves) end
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if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.width / nbrSecondSlaves) end
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g.height = mainhei
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g.width = wa.width
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g.x = wa.x
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g.y = wa.y + slaveThei
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end
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g.width = max(g.width, 1)
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g.height = max(g.height, 1)
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p.geometries[c] = g
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-- Auxiliary clients
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if #cls <= 1 then return end
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for i = 2, #cls do
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local c, g = cls[i], {}
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local idxChecker, dimToAssign
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local rowIndex = floor(i/2)
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if layout.name == "centerwork" then
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if i % 2 == 0 then -- left slave
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g.x = wa.x
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g.y = wa.y + (rowIndex - 1) * slaveFirstDim
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g.width = slaveLwid
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idxChecker, dimToAssign = nbrFirstSlaves, slaveFirstDim
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else -- right slave
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g.x = wa.x + slaveLwid + mainwid
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g.y = wa.y + (rowIndex - 1) * slaveSecondDim
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g.width = slaveRwid
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idxChecker, dimToAssign = nbrSecondSlaves, slaveSecondDim
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end
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-- if last slave in row, use remaining space for it
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if rowIndex == idxChecker then
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g.height = wa.y + wa.height - g.y
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else
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g.height = dimToAssign
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end
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else
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if i % 2 == 0 then -- top slave
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g.x = wa.x + (rowIndex - 1) * slaveFirstDim
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g.y = wa.y
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g.height = slaveThei
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idxChecker, dimToAssign = nbrFirstSlaves, slaveFirstDim
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else -- bottom slave
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g.x = wa.x + (rowIndex - 1) * slaveSecondDim
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g.y = wa.y + slaveThei + mainhei
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g.height = slaveBhei
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idxChecker, dimToAssign = nbrSecondSlaves, slaveSecondDim
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end
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-- if last slave in row, use remaining space for it
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if rowIndex == idxChecker then
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g.width = wa.x + wa.width - g.x
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else
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g.width = dimToAssign
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end
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end
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g.width = max(g.width, 1)
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g.height = max(g.height, 1)
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p.geometries[c] = g
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end
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end
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function centerwork.arrange(p)
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return arrange(p, centerwork)
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end
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function centerwork.horizontal.arrange(p)
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return arrange(p, centerwork.horizontal)
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end
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return centerwork
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