#!/usr/bin/wish -f

# First of all, we create a vertical scrollbar which we attach to the text widget.
# Then we pack them side by side and tell the text window to expand to fill the available
# window space.
# We make sure that the text window continues to fill the window even when resizing occurs
# by telling the packer that, if there's extra vertical space, to expand both the widgets
# to occupy that space.
# However, if some extra horizontal space is made available, only the text widget will be
# expanded.

scrollbar .y -command ".t yview"
text .t -wrap word -width 80 -spacing1 1m -spacing2 0.5m -spacing3 1m \
        -height 25 -yscrollcommand ".y set"

pack .t -side left -fill both -expand yes
pack .y -side left -fill y

# Next, we want to create embedded windows.
# We don't have to worry about managing them because the text widget will look after
# them internally.

set image [image create photo -file picture.gif -width 200 -height 200]
label .t.l -image $image
button .t.b -text "Hello World!" -command "puts Hi"
 

# Then we configure all the tags that we're going to associate with the text window.

.t tag configure bold -font -*-Courier-Bold-O-Normal--*-120-*-*-*-*-*-*
.t tag configure yellowBg -background yellow
.t tag configure blueFg -foreground blue
.t tag configure yellowBgBlueFg -background yellow -foreground red
.t tag configure underline -underline 1
.t tag configure raised -relief raised -borderwidth 2
.t tag configure sunken -relief sunken -borderwidth 2
.t tag configure center -justify center
.t tag configure left  -justify left
.t tag configure right -justify right
.t tag configure super -offset 4p 
.t tag configure sub -offset -2p
.t tag bind colorOnEnter <Any-Enter> ".t tag configure colorOnEnter \
                                       -background yellow"
.t tag bind colorOnEnter <Any-Leave> ".t tag configure colorOnEnter \
                                       -background {}"

# Having configured the tags, we now insert text with those tags to show off the widget's
# potential, if not our graphic design.

.t insert end "Tk text widget is so versatile that it can support many \
               display styles:\n"
.t insert end "Background: " bold
.t insert end " You can change the " 
.t insert end "background"  yellowBg
.t insert end " or "
.t insert end "foreground" blueFg
.t insert end " or " 
.t insert end "both" yellowBgBlueFg
.t insert end "\nUnderlining. " bold
.t insert end "You can " 
.t insert end "underline" underline
.t insert end "\n3-D effects: " bold
.t insert end "You can make the text appear "
.t insert end "raised" raised
.t insert end " or "
.t insert end "sunken" sunken
.t insert end " Text"
.t insert end "\nJustification" bold
.t insert end "\nright justification" right
.t insert end "\n center justification " center
.t insert end "\nleft justification " left
.t insert end "\nSuper and Subscripts: " bold
.t insert end "Text can be "
.t insert end "super" super
.t insert end " or "
.t insert end "sub" sub
.t insert end " scripted"
.t insert end "\nBindings: " bold
.t insert end "Text can be made to react to the user interactions" colorOnEnter
.t insert end "\nEmbedded Windows: " bold
.t insert end "You can insert labels "
.t window create end -window .t.l
.t insert end " or any kind of windows "
.t window create end -window .t.b