Matt's examples

Demo/tkinter/matt/animation-w-velocity-ctrl.py

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+from Tkinter import *
+
+# this is the same as simple-demo-1.py, but uses 
+# subclassing. 
+# note that there is no explicit call to start Tk. 
+# Tkinter is smart enough to start the system if it's not already going. 
+
+
+
+
+class Test(Frame):
+    def printit(self):
+	print "hi"
+
+    def createWidgets(self):
+	self.QUIT = Button(self, {'text': 'QUIT', 
+				  'fg': 'red', 
+				  'command': self.quit})
+	self.QUIT.pack({'side': 'bottom', 'fill': 'both'})	
+
+	self.draw = Canvas(self, {"width" : "5i", "height" : "5i"})
+
+	self.speed = Scale(self, {"orient":  "horiz", 
+				  "from" : -100, 
+				  "to" : 100})
+
+	self.speed.pack({'side': 'bottom', "fill" : "x"})
+
+	# all of these work..
+	self.draw.create_polygon("0", "0", "10", "0", "10", "10", "0" , "10", {"tags" : "thing"})
+	self.draw.pack({'side': 'left'})
+
+    def moveThing(self, *args):
+	velocity = self.speed.get()
+	str = float(velocity) / 1000.0
+	str = `str` + "i"
+	self.draw.move("thing",  str, str)
+	self.after(10, self.moveThing)
+
+
+
+    def __init__(self, master=None):
+	Frame.__init__(self, master)
+	Pack.config(self)
+	self.createWidgets()
+	self.after(10, self.moveThing)
+
+
+test = Test()
+
+test.mainloop()