dotfiles/awesome/lain/layout/centerwork.lua
2020-05-16 23:07:21 +03:00

194 lines
6 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2018, Eugene Pakhomov
* (c) 2016, Henrik Antonsson
* (c) 2015, Joerg Jaspert
* (c) 2014, projektile
* (c) 2013, Luca CPZ
* (c) 2010-2012, Peter Hofmann
--]]
local floor, max, mouse, mousegrabber, screen = math.floor, math.max, mouse, mousegrabber, screen
local centerwork = {
name = "centerwork",
horizontal = { name = "centerworkh" }
}
local function arrange(p, layout)
local t = p.tag or screen[p.screen].selected_tag
local wa = p.workarea
local cls = p.clients
if #cls == 0 then return end
local c, g = cls[1], {}
-- Main column, fixed width and height
local mwfact = t.master_width_factor
local mainhei = floor(wa.height * mwfact)
local mainwid = floor(wa.width * mwfact)
local slavewid = wa.width - mainwid
local slaveLwid = floor(slavewid / 2)
local slaveRwid = slavewid - slaveLwid
local slavehei = wa.height - mainhei
local slaveThei = floor(slavehei / 2)
local slaveBhei = slavehei - slaveThei
local nbrFirstSlaves = floor(#cls / 2)
local nbrSecondSlaves = floor((#cls - 1) / 2)
local slaveFirstDim, slaveSecondDim = 0, 0
if layout.name == "centerwork" then -- vertical
if nbrFirstSlaves > 0 then slaveFirstDim = floor(wa.height / nbrFirstSlaves) end
if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.height / nbrSecondSlaves) end
g.height = wa.height
g.width = mainwid
g.x = wa.x + slaveLwid
g.y = wa.y
else -- horizontal
if nbrFirstSlaves > 0 then slaveFirstDim = floor(wa.width / nbrFirstSlaves) end
if nbrSecondSlaves > 0 then slaveSecondDim = floor(wa.width / nbrSecondSlaves) end
g.height = mainhei
g.width = wa.width
g.x = wa.x
g.y = wa.y + slaveThei
end
g.width = max(g.width, 1)
g.height = max(g.height, 1)
p.geometries[c] = g
-- Auxiliary clients
if #cls <= 1 then return end
for i = 2, #cls do
local c, g = cls[i], {}
local idxChecker, dimToAssign
local rowIndex = floor(i/2)
if layout.name == "centerwork" then
if i % 2 == 0 then -- left slave
g.x = wa.x
g.y = wa.y + (rowIndex - 1) * slaveFirstDim
g.width = slaveLwid
idxChecker, dimToAssign = nbrFirstSlaves, slaveFirstDim
else -- right slave
g.x = wa.x + slaveLwid + mainwid
g.y = wa.y + (rowIndex - 1) * slaveSecondDim
g.width = slaveRwid
idxChecker, dimToAssign = nbrSecondSlaves, slaveSecondDim
end
-- if last slave in row, use remaining space for it
if rowIndex == idxChecker then
g.height = wa.y + wa.height - g.y
else
g.height = dimToAssign
end
else
if i % 2 == 0 then -- top slave
g.x = wa.x + (rowIndex - 1) * slaveFirstDim
g.y = wa.y
g.height = slaveThei
idxChecker, dimToAssign = nbrFirstSlaves, slaveFirstDim
else -- bottom slave
g.x = wa.x + (rowIndex - 1) * slaveSecondDim
g.y = wa.y + slaveThei + mainhei
g.height = slaveBhei
idxChecker, dimToAssign = nbrSecondSlaves, slaveSecondDim
end
-- if last slave in row, use remaining space for it
if rowIndex == idxChecker then
g.width = wa.x + wa.width - g.x
else
g.width = dimToAssign
end
end
g.width = max(g.width, 1)
g.height = max(g.height, 1)
p.geometries[c] = g
end
end
local function mouse_resize_handler(c, corner, x, y, orientation)
local wa = c.screen.workarea
local mwfact = c.screen.selected_tag.master_width_factor
local g = c:geometry()
local offset = 0
local cursor = "cross"
local corner_coords
if orientation == 'vertical' then
if g.height + 15 >= wa.height then
offset = g.height * .5
cursor = "sb_h_double_arrow"
elseif not (g.y + g.height + 15 > wa.y + wa.height) then
offset = g.height
end
corner_coords = { x = wa.x + wa.width * (1 - mwfact) / 2, y = g.y + offset }
else
if g.width + 15 >= wa.width then
offset = g.width * .5
cursor = "sb_v_double_arrow"
elseif not (g.x + g.width + 15 > wa.x + wa.width) then
offset = g.width
end
corner_coords = { y = wa.y + wa.height * (1 - mwfact) / 2, x = g.x + offset }
end
mouse.coords(corner_coords)
local prev_coords = {}
mousegrabber.run(function(_mouse)
if not c.valid then return false end
for _, v in ipairs(_mouse.buttons) do
if v then
prev_coords = { x = _mouse.x, y = _mouse.y }
local new_mwfact
if orientation == 'vertical' then
new_mwfact = 1 - (_mouse.x - wa.x) / wa.width * 2
else
new_mwfact = 1 - (_mouse.y - wa.y) / wa.height * 2
end
c.screen.selected_tag.master_width_factor = math.min(math.max(new_mwfact, 0.01), 0.99)
return true
end
end
return prev_coords.x == _mouse.x and prev_coords.y == _mouse.y
end, cursor)
end
function centerwork.arrange(p)
return arrange(p, centerwork)
end
function centerwork.horizontal.arrange(p)
return arrange(p, centerwork.horizontal)
end
function centerwork.mouse_resize_handler(c, corner, x, y)
return mouse_resize_handler(c, corner, x, y, 'vertical')
end
function centerwork.horizontal.mouse_resize_handler(c, corner, x, y)
return mouse_resize_handler(c, corner, x, y, 'horizontal')
end
return centerwork