48 lines
1.1 KiB
Tcl
48 lines
1.1 KiB
Tcl
#!/bin/sh
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# the next line restarts using wish \
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exec wish "$0" ${1+"$@"}
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# timer --
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# This script generates a counter with start and stop buttons.
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package require Tk
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label .counter -text 0.00 -relief raised -width 10 -padx 2m -pady 1m
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button .start -text Start -command {
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if {$stopped} {
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set stopped 0
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set startMoment [clock clicks -milliseconds]
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tick
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.stop configure -state normal
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.start configure -state disabled
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}
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}
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button .stop -text Stop -state disabled -command {
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set stopped 1
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.stop configure -state disabled
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.start configure -state normal
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}
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pack .counter -side bottom -fill both
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pack .start -side left -fill both -expand yes
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pack .stop -side right -fill both -expand yes
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set startMoment {}
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set stopped 1
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proc tick {} {
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global startMoment stopped
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if {$stopped} {return}
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after 50 tick
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set elapsedMS [expr {[clock clicks -milliseconds] - $startMoment}]
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.counter config -text [format "%.2f" [expr {double($elapsedMS)/1000}]]
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}
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bind . <Control-c> {destroy .}
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bind . <Control-q> {destroy .}
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focus .
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# Local Variables:
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# mode: tcl
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# End:
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