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50 lines
1.1 KiB
50 lines
1.1 KiB
6 years ago
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#
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# Ttk widget set: progress bar utilities.
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#
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namespace eval ttk::progressbar {
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variable Timers ;# Map: widget name -> after ID
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}
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# Autoincrement --
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# Periodic callback procedure for autoincrement mode
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#
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proc ttk::progressbar::Autoincrement {pb steptime stepsize} {
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variable Timers
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if {![winfo exists $pb]} {
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# widget has been destroyed -- cancel timer
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unset -nocomplain Timers($pb)
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return
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}
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set Timers($pb) [after $steptime \
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[list ttk::progressbar::Autoincrement $pb $steptime $stepsize] ]
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$pb step $stepsize
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}
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# ttk::progressbar::start --
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# Start autoincrement mode. Invoked by [$pb start] widget code.
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#
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proc ttk::progressbar::start {pb {steptime 50} {stepsize 1}} {
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variable Timers
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if {![info exists Timers($pb)]} {
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Autoincrement $pb $steptime $stepsize
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}
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}
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# ttk::progressbar::stop --
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# Cancel autoincrement mode. Invoked by [$pb stop] widget code.
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#
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proc ttk::progressbar::stop {pb} {
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variable Timers
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if {[info exists Timers($pb)]} {
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after cancel $Timers($pb)
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unset Timers($pb)
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}
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$pb configure -value 0
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}
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