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| author | rjohnson <rjohnson> | 1998-04-01 09:51:44 (GMT) |
|---|---|---|
| committer | rjohnson <rjohnson> | 1998-04-01 09:51:44 (GMT) |
| commit | 066ea7fd88d49cb456f74da71dbe875e4fc0aabb (patch) | |
| tree | 8fb30cb152c4dc191be47fa043d2e6f5ea38c7ba /library/demos/timer | |
| parent | 13242623d2ff3ea02ab6a62bfb48a7dbb5c27e22 (diff) | |
| download | tk-066ea7fd88d49cb456f74da71dbe875e4fc0aabb.zip tk-066ea7fd88d49cb456f74da71dbe875e4fc0aabb.tar.gz tk-066ea7fd88d49cb456f74da71dbe875e4fc0aabb.tar.bz2 | |
Initial revision
Diffstat (limited to 'library/demos/timer')
| -rw-r--r-- | library/demos/timer | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/library/demos/timer b/library/demos/timer new file mode 100644 index 0000000..b2edd11 --- /dev/null +++ b/library/demos/timer @@ -0,0 +1,40 @@ +#!/bin/sh +# the next line restarts using wish \ +exec wish "$0" "$@" + +# timer -- +# This script generates a counter with start and stop buttons. +# +# SCCS: @(#) timer 1.6 96/02/16 10:49:20 + +label .counter -text 0.00 -relief raised -width 10 +button .start -text Start -command { + if $stopped { + set stopped 0 + tick + } +} +button .stop -text Stop -command {set stopped 1} +pack .counter -side bottom -fill both +pack .start -side left -fill both -expand yes +pack .stop -side right -fill both -expand yes + +set seconds 0 +set hundredths 0 +set stopped 1 + +proc tick {} { + global seconds hundredths stopped + if $stopped return + after 50 tick + set hundredths [expr $hundredths+5] + if {$hundredths >= 100} { + set hundredths 0 + set seconds [expr $seconds+1] + } + .counter config -text [format "%d.%02d" $seconds $hundredths] +} + +bind . <Control-c> {destroy .} +bind . <Control-q> {destroy .} +focus . |