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Diffstat (limited to 'lain/layout/termfair.lua')
| -rw-r--r-- | lain/layout/termfair.lua | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/lain/layout/termfair.lua b/lain/layout/termfair.lua new file mode 100644 index 0000000..4e45eec --- /dev/null +++ b/lain/layout/termfair.lua @@ -0,0 +1,138 @@ + +--[[ + + Licensed under GNU General Public License v2 + * (c) 2014, projektile + * (c) 2013, Luke Bonham + * (c) 2010-2012, Peter Hofmann + +--]] + +local tag = require("awful.tag") +local beautiful = require("beautiful") +local math = { ceil = math.ceil, + floor = math.floor, + max = math.max } +local tonumber = tonumber + +local termfair = { name = "termfair" } + +function termfair.arrange(p) + -- Layout with fixed number of vertical columns (read from nmaster). + -- New windows align from left to right. When a row is full, a now + -- one above it is created. Like this: + + -- (1) (2) (3) + -- +---+---+---+ +---+---+---+ +---+---+---+ + -- | | | | | | | | | | | | + -- | 1 | | | -> | 2 | 1 | | -> | 3 | 2 | 1 | -> + -- | | | | | | | | | | | | + -- +---+---+---+ +---+---+---+ +---+---+---+ + + -- (4) (5) (6) + -- +---+---+---+ +---+---+---+ +---+---+---+ + -- | 4 | | | | 5 | 4 | | | 6 | 5 | 4 | + -- +---+---+---+ -> +---+---+---+ -> +---+---+---+ + -- | 3 | 2 | 1 | | 3 | 2 | 1 | | 3 | 2 | 1 | + -- +---+---+---+ +---+---+---+ +---+---+---+ + + -- 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 + if useless_gap < 0 then useless_gap = 0 end + + -- A global border can be defined with + -- beautiful.global_border_width + local global_border = tonumber(beautiful.global_border_width) or 0 + if global_border < 0 then global_border = 0 end + + -- Themes border width requires an offset + local bw = tonumber(beautiful.border_width) or 0 + + -- Screen. + local wa = p.workarea + local cls = p.clients + + -- Borders are factored in. + wa.height = wa.height - ((global_border * 2) + (bw * 2)) + wa.width = wa.width - ((global_border * 2) + (bw * 2)) + + -- How many vertical columns? + local t = tag.selected(p.screen) + local num_x = termfair.nmaster or tag.getnmaster(t) + + -- Do at least "desired_y" rows. + local desired_y = termfair.ncol or tag.getncol(t) + + if #cls > 0 + then + local num_y = math.max(math.ceil(#cls / num_x), desired_y) + local cur_num_x = num_x + local at_x = 0 + local at_y = 0 + local remaining_clients = #cls + local width = math.floor(wa.width / num_x) + local height = math.floor(wa.height / num_y) + + -- We start the first row. Left-align by limiting the number of + -- available slots. + if remaining_clients < num_x + then + cur_num_x = remaining_clients + end + + -- Iterate in reversed order. + for i = #cls,1,-1 + do + -- Get x and y position. + local c = cls[i] + local this_x = cur_num_x - at_x - 1 + local this_y = num_y - at_y - 1 + + -- Calc geometry. + local g = {} + if this_x == (num_x - 1) + then + g.width = wa.width - (num_x - 1) * width - useless_gap + else + g.width = width - useless_gap + end + if this_y == (num_y - 1) + then + g.height = wa.height - (num_y - 1) * height - useless_gap + else + g.height = height - useless_gap + end + + g.x = wa.x + this_x * width + global_border + g.y = wa.y + this_y * height + global_border + + if useless_gap > 0 + then + -- All clients tile evenly. + g.x = g.x + (useless_gap / 2) + g.y = g.y + (useless_gap / 2) + + end + c:geometry(g) + remaining_clients = remaining_clients - 1 + + -- Next grid position. + at_x = at_x + 1 + if at_x == num_x + then + -- Row full, create a new one above it. + at_x = 0 + at_y = at_y + 1 + + -- We start a new row. Left-align. + if remaining_clients < num_x + then + cur_num_x = remaining_clients + end + end + end + end +end + +return termfair |