Simple character counter with Gtk2.

clipboard-character-counter.rb

#!/usr/bin/env ruby
# vim: set fileencoding=utf-8 :
$VERBOSE = true
=begin
Count the number of characters in the clipboard.
=end

require 'rubygems'
require 'clipboard'
require 'kconv'
require 'gtk2'

win = Gtk::Window.new
win.title = 'Clipboard Characters Counter'
win.border_width = 10

style = win.style
style.font_desc = Pango::FontDescription.new('monospace 15')

lbl1 = Gtk::Label.new('')
lbl1.justify = Gtk::JUSTIFY_RIGHT
lbl1.style = style

lbl2 = Gtk::Label.new('')
lbl2.justify = Gtk::JUSTIFY_RIGHT
lbl2.style = style

btn1 = Gtk::Button.new 'Copy'
btn2 = Gtk::Button.new 'Copy'

pack_args = [ true, true, 15 ]

hbox1 = Gtk::HBox.new
hbox1.pack_start( lbl1, *pack_args )
hbox1.pack_start( btn1 )

hbox2 = Gtk::HBox.new
hbox2.pack_start( lbl2, *pack_args )
hbox2.pack_start( btn2 )

vbox = Gtk::VBox.new
vbox.pack_start( hbox1 )
vbox.pack_start( hbox2 )

win.add vbox

win.signal_connect('delete_event') do
  Gtk.main_quit
  false
end

spaces = /[\s　]/u
split_regexp = //u

$chars_length = 0
$no_space_chars_length = 0

win.signal_connect('focus_in_event') do
  chars = Clipboard.paste.toutf8.split(split_regexp)
  no_space_chars = chars.reject{|c| c =~ spaces }

  $chars_length = chars.length
  $no_space_chars_length = no_space_chars.length

  chars_length_s = $chars_length.to_s
  no_space_chars_length_s = $no_space_chars_length.to_s

  chars_digi = chars_length_s.length 
  no_space_chars_digi = no_space_chars_length_s.length

  longer = chars_digi > no_space_chars_digi ? chars_digi : no_space_chars_digi
  inc_space = 'Including white spaces: ' + chars_length_s.rjust( longer )
  no_space = 'Excluding white spaces: ' + no_space_chars_length_s.rjust( longer )

  lbl1.text = inc_space
  lbl2.text = no_space
end

btn1.signal_connect('clicked') do
  Clipboard.copy $chars_length.to_s
end
btn2.signal_connect('clicked') do
  Clipboard.copy $no_space_chars_length.to_s
end

win.show_all
Gtk.main