mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
c4fdfabcc8
g -L frozen_string_literal ext/**/*.rb|xargs ruby -Ka -e'ARGV.each{|fn|puts
fn;open(fn,"r+"){|f|s=f.read.sub(/\A(#!.*\n)?(#.*coding.*\n)?/,"\\&#
frozen_string_literal: false\n");f.rewind;f.write s}}'
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
60 lines
1.8 KiB
Ruby
60 lines
1.8 KiB
Ruby
#!/usr/bin/env ruby
|
|
# frozen_string_literal: false
|
|
# This script is a re-implementation of tktimer.rb with TkTimer(TkAfter) class.
|
|
|
|
require "tk"
|
|
|
|
# new notation :
|
|
# * symbols are acceptable as keys or values of the option hash
|
|
# * the parent widget can be given by :parent key on the option hash
|
|
root = TkRoot.new(:title=>'timer sample')
|
|
label = TkLabel.new(:parent=>root, :relief=>:raised, :width=>10) \
|
|
.pack(:side=>:bottom, :fill=>:both)
|
|
|
|
# define the procedure repeated by the TkTimer object
|
|
tick = proc{|aobj| #<== TkTimer object
|
|
cnt = aobj.return_value + 5 # return_value keeps a result of the last proc
|
|
label.text format("%d.%02d", *(cnt.divmod(100)))
|
|
cnt #==> return value is kept by TkTimer object
|
|
# (so, can be send to the next repeat-proc)
|
|
}
|
|
|
|
timer = TkTimer.new(50, -1, tick).start(0, proc{ label.text('0.00'); 0 })
|
|
# ==> repeat-interval : (about) 50 ms,
|
|
# repeat : infinite (-1) times,
|
|
# repeat-procedure : tick (only one, in this case)
|
|
#
|
|
# ==> wait-before-call-init-proc : 0 ms,
|
|
# init_proc : proc{ label.text('0.00'); 0 }
|
|
#
|
|
# (0ms)-> init_proc ->(50ms)-> tick ->(50ms)-> tick ->....
|
|
|
|
b_start = TkButton.new(:text=>'Start', :state=>:disabled) {
|
|
pack(:side=>:left, :fill=>:both, :expand=>true)
|
|
}
|
|
|
|
b_stop = TkButton.new(:text=>'Stop', :state=>:normal) {
|
|
pack('side'=>'left', 'fill'=>'both', 'expand'=>'yes')
|
|
}
|
|
|
|
b_start.command {
|
|
timer.continue
|
|
b_stop.state(:normal)
|
|
b_start.state(:disabled)
|
|
}
|
|
|
|
b_stop.command {
|
|
timer.stop
|
|
b_start.state(:normal)
|
|
b_stop.state(:disabled)
|
|
}
|
|
|
|
TkButton.new(:text=>'Reset', :state=>:normal) {
|
|
command { timer.reset }
|
|
pack(:side=>:right, :fill=>:both, :expand=>:yes)
|
|
}
|
|
|
|
ev_quit = TkVirtualEvent.new('Control-c', 'Control-q')
|
|
Tk.root.bind(ev_quit, proc{Tk.exit}).focus
|
|
|
|
Tk.mainloop
|