tilegaps layout added

layouts/tilegaps.lua

@@ -0,0 +1,221 @@
+---------------------------------------------------------------------------
+-- @author Donald Ephraim Curtis <dcurtis@cs.uiowa.edu>
+-- @author Julien Danjou <julien@danjou.info>
+-- @copyright 2009 Donald Ephraim Curtis
+-- @copyright 2008 Julien Danjou
+-- @release v3.4.11
+---------------------------------------------------------------------------
+
+-- Grab environment we need
+local ipairs = ipairs
+local math = math
+local tag = require("awful.tag")
+
+--- Tiled layouts module for awful
+module("layouts.tilegaps")
+
+local function tile_group(cls, wa, orientation, fact, group)
+    -- 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
+
+    -- 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
+        else
+            min_fact = math.min(fact[i],min_fact)
+        end
+        total_fact = total_fact + fact[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.
+        useless_gap = 25
+        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
+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"
+    end
+
+    local cls = param.clients
+    local nmaster = math.min(tag.getnmaster(t), #cls)
+    local nother = math.max(#cls - nmaster,0)
+
+    local mwfact = tag.getmwfact(t)
+    local wa = param.workarea
+    local ncol = tag.getncol(t)
+
+    local data = tag.getdata(t).windowfact
+
+    if not data then
+        data = {}
+        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
+
+    -- 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
+
+        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
+        end
+        place_master = not place_master
+    end
+
+end
+
+right = {}
+right.name = "tilegaps"
+right.arrange = tile
+
+--- The main tile algo, on left.
+-- @param screen The screen number to tile.
+left = {}
+left.name = "tilegapsleft"
+function left.arrange(p)
+    return tile(p, "left")
+end
+
+--- The main tile algo, on bottom.
+-- @param screen The screen number to tile.
+bottom = {}
+bottom.name = "tilegapsbottom"
+function bottom.arrange(p)
+    return tile(p, "bottom")
+end
+
+--- The main tile algo, on top.
+-- @param screen The screen number to tile.
+top = {}
+top.name = "tilegapstop"
+function top.arrange(p)
+    return tile(p, "top")
+end
+
+arrange = right.arrange
+name = right.name