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# 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

    puts "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

    RunSample $w

        bind $w <Destroy> {if {"%W" == ".demo"} exit}

}