awesome/lib/wibox/widget/systray.lua.in

83 lines
2.1 KiB
Lua

---------------------------------------------------------------------------
-- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@
---------------------------------------------------------------------------
local wbase = require("wibox.widget.base")
local lbase = require("wibox.layout.base")
local beautiful = require("beautiful")
local capi = { awesome = awesome }
local setmetatable = setmetatable
local error = error
-- wibox.widget.systray
local systray = { mt = {} }
local created_systray = false
local horizontal = true
local base_size = nil
function systray:draw(wibox, cr, width, height)
local x, y, width, height = lbase.rect_to_device_geometry(cr, 0, 0, width, height)
local num_entries = capi.awesome.systray()
local bg = beautiful.bg_systray or beautiful.bg_normal
local in_dir, ortho, base
if horizontal then
in_dir, ortho = width, height
else
ortho, in_dir = width, height
end
if ortho * num_entries <= in_dir then
base = ortho
else
base = in_dir / num_entries
end
capi.awesome.systray(wibox.drawin, x, y, base, horizontal, bg)
end
function systray:fit(width, height)
local num_entries = capi.awesome.systray()
local base = base_size
if base == nil then
if width < height then
base = width
else
base = height
end
end
if horizontal then
return base * num_entries, base
end
return base, base * num_entries
end
local function new()
local ret = wbase.make_widget()
if created_systray then
error("More than one systray created!")
end
created_systray = true
ret.fit = systray.fit
ret.draw = systray.draw
ret.set_base_size = function(_, size) base_size = size end
ret.set_horizontal = function(_, horiz) horizontal = horiz end
capi.awesome.connect_signal("systray::update", function()
ret:emit_signal("widget::updated")
end)
return ret
end
function systray.mt:__call(...)
return new(...)
end
return setmetatable(systray, systray.mt)
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80