openmedialibrary_platform_w.../tcl/tk8.6/ttk/progress.tcl

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2019-01-20 10:35:31 +00:00
#
# Ttk widget set: progress bar utilities.
#
namespace eval ttk::progressbar {
variable Timers ;# Map: widget name -> after ID
}
# Autoincrement --
# Periodic callback procedure for autoincrement mode
#
proc ttk::progressbar::Autoincrement {pb steptime stepsize} {
variable Timers
if {![winfo exists $pb]} {
# widget has been destroyed -- cancel timer
unset -nocomplain Timers($pb)
return
}
set Timers($pb) [after $steptime \
[list ttk::progressbar::Autoincrement $pb $steptime $stepsize] ]
$pb step $stepsize
}
# ttk::progressbar::start --
# Start autoincrement mode. Invoked by [$pb start] widget code.
#
proc ttk::progressbar::start {pb {steptime 50} {stepsize 1}} {
variable Timers
if {![info exists Timers($pb)]} {
Autoincrement $pb $steptime $stepsize
}
}
# ttk::progressbar::stop --
# Cancel autoincrement mode. Invoked by [$pb stop] widget code.
#
proc ttk::progressbar::stop {pb} {
variable Timers
if {[info exists Timers($pb)]} {
after cancel $Timers($pb)
unset Timers($pb)
}
$pb configure -value 0
}