mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
82 lines
2.4 KiB
Ruby
82 lines
2.4 KiB
Ruby
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#!/usr/bin/env ruby
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#
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# countdown timer
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# usage: cd_timer min [, min ... ]
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# ( e.g. cd_timer 0.5 1 3 5 10 )
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#
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require 'tk'
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if ARGV.empty?
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$stderr.puts 'Error:: No time arguments for counting down'
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exit(1)
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end
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width = 10
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TkButton.new(:text=>'exit',
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:command=>proc{exit}).pack(:side=>:bottom, :fill=>:x)
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b = TkButton.new(:text=>'start').pack(:side=>:top, :fill=>:x)
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f = TkFrame.new(:relief=>:ridge, :borderwidth=>2).pack(:fill=>:x)
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TkLabel.new(f, :relief=>:flat, :pady=>3,
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:background=>'black', :foreground=>'white',
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:text=>' elapsed: ').pack(:fill=>:x, :side=>:left, :expand=>true)
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now = TkLabel.new(f, :width=>width, :relief=>:flat, :pady=>3, :anchor=>:w,
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:background=>'black', :foreground=>'white',
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:text=>'%4d:%02d.00' % [0, 0]).pack(:side=>:right)
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timers = [ TkRTTimer.new(10){|tm|
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t = (tm.return_value || 0) + 1
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s, u = t.divmod(100)
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m, s = s.divmod(60)
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now.text('%4d:%02d.%02d' % [m, s, u])
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t
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}.set_start_proc(0, proc{
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now.text('%4d:%02d.00' % [0,0])
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now.foreground('white')
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0
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})
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]
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ARGV.collect{|arg| (Float(arg) * 60).to_i}.sort.each_with_index{|time, idx|
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f = TkFrame.new(:relief=>:ridge, :borderwidth=>2).pack(:fill=>:x)
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TkLabel.new(f, :relief=>:flat, :pady=>3,
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:text=>' %4d:%02d --> ' % (time.divmod(60))).pack(:side=>:left)
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l = TkLabel.new(f, :width=>width, :relief=>:flat, :pady=>3, :anchor=>:w,
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:text=>'%4d:%02d' % (time.divmod(60))).pack(:side=>:right)
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timers << TkRTTimer.new(1000){|tm|
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t = (tm.return_value || time) - 1
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if t < 0
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l.text('%4d:%02d' % ((-t).divmod(60)))
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else
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l.text('%4d:%02d' % (t.divmod(60)))
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end
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if t.zero?
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l.foreground('red')
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idx.times{Tk.bell}
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end
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t
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}.set_start_proc(0, proc{
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l.text('%4d:%02d' % (time.divmod(60)))
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l.foreground('black')
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time
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})
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}
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mode = :start
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b.command(proc{
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if mode == :start
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timers.each{|timer| timer.restart}
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b.text('reset')
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mode = :reset
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else
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timers.each{|timer| timer.stop.reset}
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b.text('start')
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mode = :start
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end
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})
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Tk.mainloop
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