Edit File: optMenu.tcl
# optMenu.tcl -- # # This file defines the procedure tk_optionMenu, which creates # an option button and its associated menu. # # RCS: @(#) $Id: optMenu.tcl,v 1.6 2007/12/13 15:26:27 dgp Exp $ # # Copyright (c) 1994 The Regents of the University of California. # Copyright (c) 1994 Sun Microsystems, Inc. # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # # ::tk_optionMenu -- # This procedure creates an option button named $w and an associated # menu. Together they provide the functionality of Motif option menus: # they can be used to select one of many values, and the current value # appears in the global variable varName, as well as in the text of # the option menubutton. The name of the menu is returned as the # procedure's result, so that the caller can use it to change configuration # options on the menu or otherwise manipulate it. # # Arguments: # w - The name to use for the menubutton. # varName - Global variable to hold the currently selected value. # firstValue - First of legal values for option (must be >= 1). # args - Any number of additional values. proc ::tk_optionMenu {w varName firstValue args} { upvar #0 $varName var if {![info exists var]} { set var $firstValue } menubutton $w -textvariable $varName -indicatoron 1 -menu $w.menu \ -relief raised -highlightthickness 1 -anchor c \ -direction flush menu $w.menu -tearoff 0 $w.menu add radiobutton -label $firstValue -variable $varName foreach i $args { $w.menu add radiobutton -label $i -variable $varName } return $w.menu }
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