46 lines
1.6 KiB
Tcl
46 lines
1.6 KiB
Tcl
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# optMenu.tcl --
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#
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# This file defines the procedure tk_optionMenu, which creates
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# an option button and its associated menu.
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#
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# SCCS: @(#) optMenu.tcl 1.9 96/02/16 10:48:26
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#
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# Copyright (c) 1994 The Regents of the University of California.
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# Copyright (c) 1994 Sun Microsystems, Inc.
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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# tk_optionMenu --
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# This procedure creates an option button named $w and an associated
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# menu. Together they provide the functionality of Motif option menus:
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# they can be used to select one of many values, and the current value
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# appears in the global variable varName, as well as in the text of
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# the option menubutton. The name of the menu is returned as the
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# procedure's result, so that the caller can use it to change configuration
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# options on the menu or otherwise manipulate it.
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#
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# Arguments:
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# w - The name to use for the menubutton.
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# varName - Global variable to hold the currently selected value.
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# firstValue - First of legal values for option (must be >= 1).
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# args - Any number of additional values.
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proc tk_optionMenu {w varName firstValue args} {
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upvar #0 $varName var
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if ![info exists var] {
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set var $firstValue
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}
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menubutton $w -textvariable $varName -indicatoron 1 -menu $w.menu \
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-relief raised -bd 2 -highlightthickness 2 -anchor c
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menu $w.menu -tearoff 0
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$w.menu add command -label $firstValue \
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-command [list set $varName $firstValue]
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foreach i $args {
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$w.menu add command -label $i -command [list set $varName $i]
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}
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return $w.menu
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}
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