;; Canvases with scrollbars

(canvas '.c4 :scrollregion '(-10c -10c 50c 20c)
	     :xscrollcommand (lambda l (apply .s2 'set l))
	     :yscrollcommand (lambda l (apply .s1 'set l)))

(.c4 'create 'rectangle 100 100 400 400 :fill "red")
(.c4 'create 'rectangle 300 300 600 600 :fill "green")
(.c4 'create 'rectangle 200 200 500 500 :fill "blue")

(scrollbar '.s1 :orient "vert" :relief "sunken"
	   	:command (lambda l (apply .c4 'yview l)))
(scrollbar '.s2 :orient "hor" :relief "sunken"
	   	:command (lambda l (apply .c4 'xview l)))

(pack .s2 :side "bottom" :fill "x")
(pack .s1 :side "right"  :fill "y")
(pack .c4 :expand "yes"  :fill "both")