From 99d0354e89aefdb6373dbeb22506216b8790a0bd Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 16 Jan 1998 12:13:05 +0000
Subject: Initial revision

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@2 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 sample/tktimer.rb | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 sample/tktimer.rb

(limited to 'sample/tktimer.rb')

diff --git a/sample/tktimer.rb b/sample/tktimer.rb
new file mode 100644
index 000000000..34377e2f3
--- /dev/null
+++ b/sample/tktimer.rb
@@ -0,0 +1,50 @@
+#!/usr/local/bin/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
-- 
cgit