optMenu.tcl
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- # optMenu.tcl --
- #
- # This file defines the procedure tk_optionMenu, which creates
- # an option button and its associated menu.
- #
- # RCS: @(#) $Id: optMenu.tcl,v 1.4 2001/08/01 16:21:11 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 -bd 2 -highlightthickness 2 -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
- }