---------------------------------------------------------------------------
-- @author Julien Danjou <julien@danjou.info>
-- @copyright 2008 Julien Danjou
-- @release @AWESOME_VERSION@
---------------------------------------------------------------------------

-- Grab environment we need
local ipairs = ipairs
local tag = require("awful.tag")

--- Layout module for awful
module("awful.layout")

--- Get the current layout name.
-- @param screen The screen number.
function get(screen)
    local t = tag.selected(screen)
    if t then
        return t.layout
    end
end

--- Change the layout of the current tag.
-- @param layouts A table of layouts.
-- @param i Relative index.
function inc(layouts, i)
    local t = tag.selected()
    local number_of_layouts = 0
    local rev_layouts = {}
    for i, v in ipairs(layouts) do
        rev_layouts[v] = i
        number_of_layouts = number_of_layouts + 1
    end
    if t then
        local cur_layout = get()
        local new_layout_index = (rev_layouts[cur_layout] + i) % number_of_layouts
        if new_layout_index == 0 then
            new_layout_index = number_of_layouts
        end
        t.layout = layouts[new_layout_index]
    end
end

--- Set the layout of the current tag by name.
-- @param layout Layout name.
function set(layout)
    local t = tag.selected()
    if t then
        t.layout = layout
    end
end

-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80