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author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
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committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/ext/tk/sample/tktimer.rb |
Fresh start
Diffstat (limited to 'jni/ruby/ext/tk/sample/tktimer.rb')
-rw-r--r-- | jni/ruby/ext/tk/sample/tktimer.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/jni/ruby/ext/tk/sample/tktimer.rb b/jni/ruby/ext/tk/sample/tktimer.rb new file mode 100644 index 0000000..b1adb5b --- /dev/null +++ b/jni/ruby/ext/tk/sample/tktimer.rb @@ -0,0 +1,50 @@ +#!/usr/bin/env ruby +# This script generates a counter with start and stop buttons. + +require "tk" +$label = TkLabel.new { + text '0.00' + relief 'raised' + width 10 + pack('side'=>'bottom', 'fill'=>'both') +} + +TkButton.new { + text 'Start' + command proc { + if $stopped + $stopped = FALSE + tick + end + } + pack('side'=>'left','fill'=>'both','expand'=>'yes') +} +TkButton.new { + text 'Stop' + command proc{ + exit if $stopped + $stopped = TRUE + } + pack('side'=>'right','fill'=>'both','expand'=>'yes') +} + +$seconds=0 +$hundredths=0 +$stopped=TRUE + +def tick + if $stopped then return end + Tk.after 50, proc{tick} + $hundredths+=5 + if $hundredths >= 100 + $hundredths=0 + $seconds+=1 + end + $label.text format("%d.%02d", $seconds, $hundredths) +end + +root = Tk.root +root.bind "Control-c", proc{root.destroy} +root.bind "Control-q", proc{root.destroy} +Tk.root.focus +Tk.mainloop |