Initial class construction

Git/mingw64/lib/tk8.6/demos/states.tcl

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+# states.tcl --
+#
+# This demonstration script creates a listbox widget that displays
+# the names of the 50 states in the United States of America.
+
+if {![info exists widgetDemo]} {
+    error "This script should be run from the \"widget\" demo."
+}
+
+package require Tk
+
+set w .states
+catch {destroy $w}
+toplevel $w
+wm title $w "Listbox Demonstration (50 states)"
+wm iconname $w "states"
+positionWindow $w
+
+label $w.msg -font $font -wraplength 4i -justify left -text "A listbox containing the 50 states is displayed below, along with a scrollbar.  You can scan the list either using the scrollbar or by scanning.  To scan, press button 2 in the widget and drag up or down."
+pack $w.msg -side top
+
+labelframe $w.justif -text Justification
+foreach c {Left Center Right} {
+    set lower [string tolower $c]
+    radiobutton $w.justif.$lower -text $c -variable just \
+        -relief flat -value $lower -anchor w \
+        -command "$w.frame.list configure -justify \$just" \
+        -tristatevalue "multi"
+    pack $w.justif.$lower -side left -pady 2 -fill x
+}
+pack $w.justif
+
+## See Code / Dismiss buttons
+set btns [addSeeDismiss $w.buttons $w]
+pack $btns -side bottom -fill x
+
+frame $w.frame -borderwidth .5c
+pack $w.frame -side top -expand yes -fill y
+
+ttk::scrollbar $w.frame.scroll -command "$w.frame.list yview"
+listbox $w.frame.list -yscroll "$w.frame.scroll set" -setgrid 1 -height 12
+pack $w.frame.scroll -side right -fill y
+pack $w.frame.list -side left -expand 1 -fill both
+
+$w.frame.list insert 0 Alabama Alaska Arizona Arkansas California \
+    Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois \
+    Indiana Iowa Kansas Kentucky Louisiana Maine Maryland \
+    Massachusetts Michigan Minnesota Mississippi Missouri \
+    Montana Nebraska Nevada "New Hampshire" "New Jersey" "New Mexico" \
+    "New York" "North Carolina" "North Dakota" \
+    Ohio Oklahoma Oregon Pennsylvania "Rhode Island" \
+    "South Carolina" "South Dakota" \
+    Tennessee Texas Utah Vermont Virginia Washington \
+    "West Virginia" Wisconsin Wyoming