Matt's examples
diff --git a/Demo/tkinter/matt/canvas-with-scrollbars.py b/Demo/tkinter/matt/canvas-with-scrollbars.py
new file mode 100644
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+++ b/Demo/tkinter/matt/canvas-with-scrollbars.py
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+from Tkinter import *
+
+# This example program creates a scroling canvas, and demonstrates
+# how to tie scrollbars and canvses together. The mechanism
+# is analogus for listboxes and other widgets with
+# "xscroll" and "yscroll" configuration options.
+
+class Test(Frame):
+ def printit(self):
+ print "hi"
+
+ def createWidgets(self):
+ self.question = Label(self, {"text": "Can Find The BLUE Square??????",
+ Pack : {"side" : "top"}})
+
+ self.QUIT = Button(self, {'text': 'QUIT',
+ 'bg': 'red',
+ "height" : "3",
+ 'command': self.quit})
+ self.QUIT.pack({'side': 'bottom', 'fill': 'both'})
+ spacer = Frame(self, {"height" : "0.25i",
+ Pack : {"side" : "bottom"}})
+
+ # notice that the scroll region (20" x 20") is larger than
+ # displayed size of the widget (5" x 5")
+ self.draw = Canvas(self, {"width" : "5i",
+ "height" : "5i",
+ "bg" : "white",
+ "scrollregion" : "0i 0i 20i 20i"})
+
+
+ self.draw.scrollX = Scrollbar(self, {"orient" : "horizontal"})
+ self.draw.scrollY = Scrollbar(self, {"orient" : "vertical"})
+
+ # now tie the three together. This is standard boilerplate text
+ self.draw['xscroll'] = self.draw.scrollX.set
+ self.draw['yscroll'] = self.draw.scrollY.set
+ self.draw.scrollX['command'] = self.draw.xview
+ self.draw.scrollY['command'] = self.draw.yview
+
+ # draw something. Note that the first square
+ # is visible, but you need to scroll to see the second one.
+ self.draw.create_polygon("0i", "0i", "3.5i", "0i", "3.5i", "3.5i", "0i" , "3.5i")
+ self.draw.create_polygon("10i", "10i", "13.5i", "10i", "13.5i", "13.5i", "10i" , "13.5i", "-fill", "blue")
+
+
+ # pack 'em up
+ self.draw.scrollX.pack({'side': 'bottom',
+ "fill" : "x"})
+ self.draw.scrollY.pack({'side': 'right',
+ "fill" : "y"})
+ self.draw.pack({'side': 'left'})
+
+
+ def scrollCanvasX(self, *args):
+ print "scrolling", args
+ print self.draw.scrollX.get()
+
+
+ def __init__(self, master=None):
+ Frame.__init__(self, master)
+ Pack.config(self)
+ self.createWidgets()
+
+test = Test()
+
+test.mainloop()