openmedialibrary_platform_w.../tcl/tix8.4.3/demos/samples/OptMenu.tcl

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# -*-mode: tcl; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: OptMenu.tcl,v 1.3 2001/12/09 05:31:07 idiscovery Exp $
#
# Tix Demostration Program
#
# This sample program is structured in such a way so that it can be
# executed from the Tix demo program "widget": it must have a
# procedure called "RunSample". It should also have the "if" statment
# at the end of this file so that it can be run as a standalone
# program using tixwish.
# This file demonstrates the use of the tixOptionMenu widget -- you can
# use it for the user to choose from a fixed set of options
#
set opt_options {text formatted post html tex rtf}
set opt_labels(text) "Plain Text"
set opt_labels(formatted) "Formatted Text"
set opt_labels(post) "PostScript"
set opt_labels(html) "HTML"
set opt_labels(tex) "LaTeX"
set opt_labels(rtf) "Rich Text Format"
proc RunSample {w} {
catch {uplevel #0 unset demo_opt_from}
catch {uplevel #0 unset demo_opt_to }
# Create the tixOptionMenu's on the top of the dialog box
#
frame $w.top -border 1 -relief raised
tixOptionMenu $w.top.from -label "From File Format : " \
-variable demo_opt_from \
-options {
label.width 19
label.anchor e
menubutton.width 15
}
tixOptionMenu $w.top.to -label "To File Format : " \
-variable demo_opt_to \
-options {
label.width 19
label.anchor e
menubutton.width 15
}
# Add the available options to the two OptionMenu widgets
#
# [Hint] You have to add the options first before you set the
# global variables "demo_opt_from" and "demo_opt_to". Otherwise
# the OptionMenu widget will complain about "unknown options"!
#
global opt_options opt_labels
foreach opt $opt_options {
$w.top.from add command $opt -label $opt_labels($opt)
$w.top.to add command $opt -label $opt_labels($opt)
}
uplevel #0 set demo_opt_from html
uplevel #0 set demo_opt_to post
pack $w.top.from $w.top.to -side top -anchor w -pady 3 -padx 6
# Use a ButtonBox to hold the buttons.
#
tixButtonBox $w.box -orientation horizontal
$w.box add ok -text Ok -underline 0 -command "opt:okcmd $w" \
-width 6
$w.box add cancel -text Cancel -underline 0 -command "destroy $w" \
-width 6
pack $w.box -side bottom -fill x
pack $w.top -side top -fill both -expand yes
# Let's set some nice bindings for keyboard accelerators
#
bind $w <Alt-f> "focus $w.top.from"
bind $w <Alt-t> "focus $w.top.to"
bind $w <Alt-o> "[$w.box subwidget ok] invoke; break"
bind $w <Alt-c> "[$w.box subwidget cancel] invoke; break"
}
proc opt:okcmd {w} {
global demo_opt_from demo_opt_to opt_labels
tixDemo:Status "You wanted to convert file from $opt_labels($demo_opt_from) to $opt_labels($demo_opt_to)"
destroy $w
}
# This "if" statement makes it possible to run this script file inside or
# outside of the main demo program "widget".
#
if {![info exists tix_demo_running]} {
wm withdraw .
set w .demo
toplevel $w; wm transient $w ""
RunSample $w
bind $w <Destroy> {if {"%W" == ".demo"} exit}
}