Pianobar Raspberry PI LCD CTL file

piano_display.rb

#!/usr/bin/env ruby

# REMOTE CONTROL
#        pianobar  can  be  controlled  through  a  fifo.  You have to create it
#        yourself by executing

#         mkfifo ~/.config/pianobar/ctl

#        Adjust the path if you set up a $XDG_CONFIG_HOME.  Afterwards  you  can
#        write commands directly into the fifo. Example (next song):

#         echo -n 'n' > ~/.config/pianobar/ctl

#        n is the keybinding for "next song". If you customized your keybindings
#        you have to use these characters to control pianobar.   This  behaviour
#        may change in the future!

#        Another example:

#         while true; do;
#            nc -l -p 12345 -s localhost localhost > ~/.config/pianobar/ctl;
#            sleep 1;
#         done

#         echo -ne 'n\x1a' | nc -q 0 127.0.0.1 12345

# EVENTCMD
#        pianobar  can  report  certain "events" to an external application (see
#        CONFIGURATION ). This application is started with  the  event  name  as
#        it's   first   argument.   More   information  (artist,  title,  album,
#        stationName,  error   code,   error   description,   song   length   in
#        milliseconds, rating) is supplied through stdin.

#        Currently  supported events are: artistbookmark, songban, songbookmark,
#        songexplain,  songfinish,  songlove,  songmove,  songshelf,  songstart,
#        stationaddmusic,    stationaddshared,   stationcreate,   stationdelete,
#        stationfetchplaylist, stationquickmixtoggle, stationrename

#        An example script can be found in the contrib/ directory of  pianobar's
#        source distribution.
#
#        su USER -c 'command &'


require "/home/pi/projects/lcd/lcd"
require "/home/pi/projects/light"

light = Light.new

GREEN=" 0x00 0xff 0x00 "
BLUE=" 0x00 0x00 0xff "
RED=" 0xff 0x00 0x00 "
WHITE=" 0Xff 0xff 0xff "

def return_color(hex)
  hex_array=hex.scan(/../)
  color_string=""
  hex_array.each do |hex|
    puts hex
    dd=hex.to_i(16).to_s(16)
    color_string << " 0x" << dd << " "
    puts color_string
  end
  return color_string
end

event = ARGV.first

lcd = Display.new("/dev/ttyAMA0", 9600)

if event == 'songstart'
  light.color(BLUE)
  d = {}
  lcd.clear
  STDIN.each_line { |line| d.store(*line.chomp.split('=', 2)) }
  title=d['title']
  artist=d['artist']
  lcd.print(title, 1)
  lcd.print(artist,2)
end

if event == 'songlove'
  light.color(GREEN)
  d={}
  STDIN.each_line { |line| d.store(*line.chomp.split('=', 2)) }
  title=d['title']
  artist=d['artist']
  lcd.clear_line(3)
  lcd.print("Loving..." << title, 3)
  sleep(5)
  lcd.clear_line(3)
  light.color(BLUE)
end

if event == 'songban'
  light.color(RED)
  d={}
  STDIN.each_line { |line| d.store(*line.chomp.split('=', 2)) }
  title=d['title']
  artist=d['artist']
  lcd.clear_line(3)
  lcd.scroll("Banning..." << title, 3)
  sleep(5)
  lcd.clear_line(3)
  light.color(BLUE)
end