--[[
Licensed under GNU General Public License v2
- * (c) 2013, Luke Bonham
- * (c) 2009 Donald Ephraim Curtis
- * (c) 2008 Julien Danjolu
+ * (c) 2014, projektile, worron
+ * (c) 2013, Luke Bonham
+ * (c) 2009, Donald Ephraim Curtis
+ * (c) 2008, Julien Danjolu
--]]
local beautiful = require("beautiful")
local ipairs = ipairs
local math = { floor = math.floor,
+ ceil = math.ceil,
max = math.max,
min = math.min }
local tonumber = tonumber
local uselesstile = {}
-local function tile_group(cls, wa, orientation, fact, group)
- -- A useless gap (like the dwm patch) can be defined with
- -- beautiful.useless_gap_width .
- local useless_gap = tonumber(beautiful.useless_gap_width) or 0
-
- -- get our orientation right
- local height = "height"
- local width = "width"
- local x = "x"
- local y = "y"
- if orientation == "top" or orientation == "bottom" then
- height = "width"
- width = "height"
- x = "y"
- y = "x"
- end
+-- Transformation functions
+local function flip(canvas, geometry)
+ return {
+ -- vertical only
+ x = 2 * canvas.x + canvas.width - geometry.x - geometry.width,
+ y = geometry.y,
+ width = geometry.width,
+ height = geometry.height
+ }
+end
+
+local function swap(geometry)
+ return { x = geometry.y, y = geometry.x, width = geometry.height, height = geometry.width }
+end
+
+-- Find geometry for secondary windows column
+local function cut_column(wa, n, index)
+ local width = wa.width / n
+ local area = { x = wa.x + (index - 1) * width, y = wa.y, width = width, height = wa.height }
+
+ return area
+end
+
+-- Find geometry for certain window in column
+local function cut_row(wa, factor, index, used)
+ local height = wa.height * factor.window[index] / factor.total
+ local area = { x = wa.x, y = wa.y + used, width = wa.width, height = height }
+
+ return area
+end
- -- make this more generic (not just width)
- available = wa[width] - (group.coord - wa[x])
-
- -- find our total values
- local total_fact = 0
- local min_fact = 1
- local size = group.size
- for c = group.first,group.last do
- -- determine the width/height based on the size_hint
- local i = c - group.first +1
- local size_hints = cls[c].size_hints
- local size_hint = size_hints["min_"..width] or size_hints["base_"..width] or 0
- size_hint = size_hint + cls[c].border_width*2
- size = math.max(size_hint, size)
-
- -- calculate the height
- if not fact[i] then
- fact[i] = min_fact
+-- Client geometry correction depending on useless gap and window border
+local function size_correction(c, geometry, useless_gap)
+ geometry.width = math.max(geometry.width - 2 * c.border_width - useless_gap, 1)
+ geometry.height = math.max(geometry.height - 2 * c.border_width - useless_gap, 1)
+ geometry.x = geometry.x + useless_gap / 2
+ geometry.y = geometry.y + useless_gap / 2
+end
+
+-- Check size factor for group of clients and calculate total
+local function calc_factor(n, winfactors)
+ local factor = { window = winfactors, total = 0, min = 1 }
+
+ for i = 1, n do
+ if not factor.window[i] then
+ factor.window[i] = factor.min
else
- min_fact = math.min(fact[i],min_fact)
+ factor.min = math.min(factor.window[i], factor.min)
+ if factor.window[i] < 0.05 then factor.window[i] = 0.05 end
end
- total_fact = total_fact + fact[i]
+ factor.total = factor.total + factor.window[i]
end
- size = math.min(size, available)
-
- local coord = wa[y]
- local geom = {}
- local used_size = 0
- local unused = wa[height]
- local stat_coord = wa[x]
- --stat_coord = size
- for c = group.first,group.last do
- local i = c - group.first +1
- geom[width] = size
- geom[height] = math.floor(unused * fact[i] / total_fact)
- geom[x] = group.coord
- geom[y] = coord
-
- coord = coord + geom[height]
- unused = unused - geom[height]
- total_fact = total_fact - fact[i]
- used_size = math.max(used_size, geom[width])
-
- -- Useless gap
- if useless_gap > 0
- then
- -- Top and left clients are shrinked by two steps and
- -- get moved away from the border. Other clients just
- -- get shrinked in one direction.
-
- top = false
- left = false
-
- if geom[y] == wa[y] then
- top = true
- end
-
- if geom[x] == 0 or geom[x] == wa[x] then
- left = true
- end
-
- if top then
- geom[height] = geom[height] - 2 * useless_gap
- geom[y] = geom[y] + useless_gap
- else
- geom[height] = geom[height] - useless_gap
- end
-
- if left then
- geom[width] = geom[width] - 2 * useless_gap
- geom[x] = geom[x] + useless_gap
- else
- geom[width] = geom[width] - useless_gap
- end
- end
- -- End of useless gap.
- geom = cls[c]:geometry(geom)
- end
-
- return used_size
+ return factor
end
-local function tile(param, orientation)
- local t = tag.selected(param.screen)
- orientation = orientation or "right"
-
- -- this handles are different orientations
- local height = "height"
- local width = "width"
- local x = "x"
- local y = "y"
- if orientation == "top" or orientation == "bottom" then
- height = "width"
- width = "height"
- x = "y"
- y = "x"
+-- Tile group of clients in given area
+-- @canvas need for proper transformation only
+-- @winfactors table with clients size factors
+local function tile_column(canvas, area, list, useless_gap, transformation, winfactors)
+ local used = 0
+ local factor = calc_factor(#list, winfactors)
+
+ for i, c in ipairs(list) do
+ local g = cut_row(area, factor, i, used)
+ used = used + g.height
+
+ -- swap workarea dimensions
+ if transformation.flip then g = flip(canvas, g) end
+ if transformation.swap then g = swap(g) end
+
+ -- useless gap and border correction
+ size_correction(c, g, useless_gap)
+
+ c:geometry(g)
end
+end
- local cls = param.clients
- local nmaster = math.min(tag.getnmaster(t), #cls)
- local nother = math.max(#cls - nmaster,0)
+--Main tile function
+local function tile(p, orientation)
+
+ -- Theme vars
+ local useless_gap = beautiful.useless_gap_width or 0
+ local global_border = beautiful.global_border_width or 0
+
+ -- Aliases
+ local wa = p.workarea
+ local cls = p.clients
+ local t = tag.selected(p.screen)
+ -- Nothing to tile here
+ if #cls == 0 then return end
+
+ -- Get tag prop
+ local nmaster = math.min(tag.getnmaster(t), #cls)
local mwfact = tag.getmwfact(t)
- local wa = param.workarea
- local ncol = tag.getncol(t)
+ if nmaster == 0 then
+ mwfact = 0
+ elseif nmaster == #cls then
+ mwfact = 1
+ end
+
+ -- clients size factor
local data = tag.getdata(t).windowfact
if not data then
tag.getdata(t).windowfact = data
end
- local coord = wa[x]
- local place_master = true
- if orientation == "left" or orientation == "top" then
- -- if we are on the left or top we need to render the other windows first
- place_master = false
- end
+ -- Workarea size correction depending on useless gap and global border
+ wa.height = wa.height - 2 * global_border - useless_gap
+ wa.width = wa.width - 2 * global_border - useless_gap
+ wa.x = wa.x + useless_gap / 2 + global_border
+ wa.y = wa.y + useless_gap / 2 + global_border
- -- this was easier than writing functions because there is a lot of data we need
- for d = 1,2 do
- if place_master and nmaster > 0 then
- local size = wa[width]
- if nother > 0 then
- size = math.min(wa[width] * mwfact, wa[width] - (coord - wa[x]))
- end
- if not data[0] then
- data[0] = {}
- end
- coord = coord + tile_group(cls, wa, orientation, data[0], {first=1, last=nmaster, coord = coord, size = size})
- end
+ -- Find which transformation we need for given orientation
+ local transformation = {
+ swap = orientation == 'top' or orientation == 'bottom',
+ flip = orientation == 'left' or orientation == 'top'
+ }
+
+ -- Swap workarea dimensions if orientation vertical
+ if transformation.swap then wa = swap(wa) end
- if not place_master and nother > 0 then
- local last = nmaster
-
- -- we have to modify the work area size to consider left and top views
- local wasize = wa[width]
- if nmaster > 0 and (orientation == "left" or orientation == "top") then
- wasize = wa[width] - wa[width]*mwfact
- end
- for i = 1,ncol do
- -- Try to get equal width among remaining columns
- local size = math.min( (wasize - (coord - wa[x])) / (ncol - i + 1) )
- local first = last + 1
- last = last + math.floor((#cls - last)/(ncol - i + 1))
- -- tile the column and update our current x coordinate
- if not data[i] then
- data[i] = {}
- end
- coord = coord + tile_group(cls, wa, orientation, data[i], { first = first, last = last, coord = coord, size = size })
- end
+ -- Split master and other windows
+ local cls_master, cls_other = {}, {}
+
+ for i, c in ipairs(cls) do
+ if i <= nmaster then
+ table.insert(cls_master, c)
+ else
+ table.insert(cls_other, c)
end
- place_master = not place_master
end
-end
+ -- Tile master windows
+ local master_area = {
+ x = wa.x,
+ y = wa.y,
+ width = nmaster > 0 and wa.width * mwfact or 0,
+ height = wa.height
+ }
+
+ if not data[0] then data[0] = {} end
+ tile_column(wa, master_area, cls_master, useless_gap, transformation, data[0])
+
+ -- Tile other windows
+ local other_area = {
+ x = wa.x + master_area.width,
+ y = wa.y,
+ width = wa.width - master_area.width,
+ height = wa.height
+ }
+
+ -- get column number for other windows
+ local ncol = math.min(tag.getncol(t), #cls_other)
+
+ if ncol == 0 then ncol = 1 end
+
+ -- split other windows to column groups
+ local last_small_column = ncol - #cls_other % ncol
+ local rows_min = math.floor(#cls_other / ncol)
+
+ local client_index = 1
+ for i = 1, ncol do
+ local position = transformation.flip and ncol - i + 1 or i
+ local rows = i <= last_small_column and rows_min or rows_min + 1
+ local column = {}
+
+ for j = 1, rows do
+ table.insert(column, cls_other[client_index])
+ client_index = client_index + 1
+ end
-uselesstile.right = {}
-uselesstile.right.name = "uselesstile"
-uselesstile.right.arrange = tile
+ -- and tile
+ local column_area = cut_column(other_area, ncol, position)
---- The main tile algo, on left.
--- @param screen The screen number to tile.
-uselesstile.left = {}
-uselesstile.left.name = "uselesstileleft"
-function uselesstile.left.arrange(p)
- return tile(p, "left")
+ if not data[i] then data[i] = {} end
+ tile_column(wa, column_area, column, useless_gap, transformation, data[i])
+ end
end
---- The main tile algo, on bottom.
--- @param screen The screen number to tile.
-uselesstile.bottom = {}
-uselesstile.bottom.name = "uselesstilebottom"
-function uselesstile.bottom.arrange(p)
- return tile(p, "bottom")
+-- Layout constructor
+local function construct_layout(name, orientation)
+ return {
+ name = name,
+ -- @p screen number to tile
+ arrange = function(p) return tile(p, orientation) end
+ }
end
---- The main tile algo, on top.
--- @param screen The screen number to tile.
-uselesstile.top = {}
-uselesstile.top.name = "uselesstiletop"
-function uselesstile.top.arrange(p)
- return tile(p, "top")
-end
+-- Build layouts with different tile direction
+uselesstile.right = construct_layout("uselesstile", "right")
+uselesstile.left = construct_layout("uselesstileleft", "left")
+uselesstile.bottom = construct_layout("uselesstilebottom", "bottom")
+uselesstile.top = construct_layout("uselesstiletop", "top")
+-- Module aliase
uselesstile.arrange = uselesstile.right.arrange
uselesstile.name = uselesstile.right.name
projects / etc / awesome.git / blobdiff