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30 lines
787 B
Ruby
30 lines
787 B
Ruby
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#!/usr/bin/env ruby
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# This script is a re-implementation of tktimer.rb with TkTimer(TkAfter) class.
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require "tk"
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label = TkLabel.new(:relief=>:raised, :width=>10) \
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.pack(:side=>:bottom, :fill=>:both)
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tick = proc{|aobj|
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cnt = aobj.return_value + 5
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label.text format("%d.%02d", *(cnt.divmod(100)))
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cnt
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}
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timer = TkTimer.new(50, -1, tick).start(0, proc{ label.text('0.00'); 0 })
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TkButton.new(:text=>'Start') {
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command proc{ timer.continue unless timer.running? }
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pack(:side=>:left, :fill=>:both, :expand=>true)
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}
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TkButton.new(:text=>'Stop') {
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command proc{ timer.stop if timer.running? }
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pack('side'=>'right','fill'=>'both','expand'=>'yes')
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}
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ev_quit = TkVirtualEvent.new('Control-c', 'Control-q')
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Tk.root.bind(ev_quit, proc{Tk.exit}).focus
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Tk.mainloop
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