Adding the Copy Property to a Simple Histogram

[W. eWatson]

The code below produces a text window 60hx20w with a scroll bar. The 
contents are something of a histogram of values from 0 to 255. If one tries 
to copy the contents, Windows doesn't allow it. What needs to be done to 
allow a copy and paste?

     def ShowHistogram(self):
         if not self.current_image:
             return

         if self.histogram:
             self.histogram.destroy()

         t = Toplevel( self.master )
         t.title("Histogram")
         t.bind( '<Destroy>', self.DestroyHistogram )
         text = Text( t, height=60, width=20 )
         scroll = Scrollbar(t, command=text.yview)
         text.configure(yscrollcommand=scroll.set)
         text.pack(side=LEFT, fill='both', expand=1)
         scroll.pack(side=RIGHT, fill=Y)
         self.histogram = t

         hist = self.current_image.histogram()
         for i in range(len(hist)):
             msg = "%5d %6d\n" % (i,hist[i])
             text.insert( END, msg )
-- 
                                W. eWatson

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