Reputation: 236
With this piece of code in my rc.lua (configuration file of AwesomeWM) I get what you see in image bellow:
mybattmon = wibox.widget.textbox()
function battery_status ()
local output={}
local fd=io.popen("acpi", "r")
local line=fd:read()
while line do
local battery_load = string.match(line, "(%d*)%%")
local discharging
if string.match(line, "Discharging")=="Discharging"
then
discharging="-"
elseif string.match(line, "Charging")=="Charging"
then
discharging="⚡"
else
discharging=""
end
-- if tonumber(battery_load) < 10 then fontColor="red" else fontColor="black" end
-- table.insert(output,"<span color='" ..fontColor.. "'>")
table.insert(output,discharging.. "" ..battery_load.. "%")
-- table.insert(output,"</span>")
line=fd:read() --read next line
end
return table.concat(output,"|")
end
my_battmon_timer = timer({ timeout = 2 })
my_battmon_timer:connect_signal("timeout", function()
mybattmon:set_markup( '<span background="#92B0A0" font="' .. font .. '"color="#000">BAT: ' .. battery_status() .. '</span>' )
end)
my_battmon_timer:start()
If I uncomment the three commented lines (which are meant to change the colour when the battery goes down to less than 10%), I get the following:
The vertical bar is there to separate when I put my second battery.
Does somebody understand why the three lines changing the colour would make it insert the bars before and after the text?
Upvotes: 1
Views: 233
Reputation: 80951
You are inserting the pipes when the table has more than one element.
Your original code is effectively this (for the single battery case):
local output={}
table.insert(output, "a")
print(table.concat(output, "|"))
# a
Your uncommented version of the code is effectively this:
local output={}
table.insert(output, "pre-a")
table.insert(output, "a")
table.insert(output, "post-a")
print(table.concat(output, "|"))
# pre-a|a|post-a
You want to format the span string as one entry in the table.
if tonumber(battery_load) < 10 then fontColor="red" else fontColor="black" end
local batstr = "<span color='" ..fontColor.. "'>"
batstr = batstr..discharging.. "" ..battery_load.. "%"
batstr = batstr.."</span>"
table.insert(output,batstr)
Upvotes: 2