1 | # optMenu.tcl -- |
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2 | # |
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3 | # This file defines the procedure tk_optionMenu, which creates |
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4 | # an option button and its associated menu. |
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5 | # |
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6 | # RCS: @(#) $Id: optMenu.tcl,v 1.3 1998/09/14 18:23:24 stanton Exp $ |
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7 | # |
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8 | # Copyright (c) 1994 The Regents of the University of California. |
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9 | # Copyright (c) 1994 Sun Microsystems, Inc. |
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10 | # |
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11 | # See the file "license.terms" for information on usage and redistribution |
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12 | # of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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13 | # |
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14 | |
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15 | # tk_optionMenu -- |
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16 | # This procedure creates an option button named $w and an associated |
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17 | # menu. Together they provide the functionality of Motif option menus: |
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18 | # they can be used to select one of many values, and the current value |
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19 | # appears in the global variable varName, as well as in the text of |
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20 | # the option menubutton. The name of the menu is returned as the |
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21 | # procedure's result, so that the caller can use it to change configuration |
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22 | # options on the menu or otherwise manipulate it. |
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23 | # |
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24 | # Arguments: |
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25 | # w - The name to use for the menubutton. |
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26 | # varName - Global variable to hold the currently selected value. |
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27 | # firstValue - First of legal values for option (must be >= 1). |
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28 | # args - Any number of additional values. |
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29 | |
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30 | proc tk_optionMenu {w varName firstValue args} { |
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31 | upvar #0 $varName var |
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32 | |
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33 | if {![info exists var]} { |
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34 | set var $firstValue |
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35 | } |
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36 | menubutton $w -textvariable $varName -indicatoron 1 -menu $w.menu \ |
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37 | -relief raised -bd 2 -highlightthickness 2 -anchor c \ |
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38 | -direction flush |
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39 | menu $w.menu -tearoff 0 |
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40 | $w.menu add radiobutton -label $firstValue -variable $varName |
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41 | foreach i $args { |
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42 | $w.menu add radiobutton -label $i -variable $varName |
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43 | } |
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44 | return $w.menu |
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45 | } |
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