#!/usr/bin/wish -f

# First we create the user-interface elements.

scrollbar .h -orient horizontal -command ".list xview"
scrollbar .v  -command ".list yview"
listbox .list -selectmode single -width 20 -height 10 \
              -setgrid 1 -xscroll ".h set" -yscroll ".v set"
label .label -text "File Selected:" -justify left 
entry .e -textvariable fileSelected
 

# To give widgets that Motif-ish look and feel, we use the grid geometry manager.

grid .list -row 0 -column 0 -columnspan 2 -sticky "news"
grid .v -row 0 -column 2 -sticky "ns"
grid .h -row 1 -column 0 -columnspan 2 -sticky "we"
grid .label -row 2 -column 0 
grid .e -row 3 -column 0  -columnspan 3 -sticky "we" 

grid columnconfigure . 0 -weight 1
grid rowconfigure . 0 -weight 1

# We initialize the list box with the contents of the current directory.

foreach file [glob *] {
    .list insert end $file
}

# Lastly, we bind an event handler to the list box to make it react to the release of
# the mouse-button 1. This corresponds to the left mouse-button for right-handed users
# and vice versa for left-handed users. We'll continue to call it mouse button 1 in
# this section as this is the convention used in the code.

bind .list <ButtonRelease-1> \
    {global fileSelected;set fileSelected [%W get [%W curselection]]}