symbian-qemu-0.9.1-12/python-2.6.1/Demo/tkinter/matt/canvas-with-scrollbars.py
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0:ffa851df0825 1:2fb8b9db1c86
       
     1 from Tkinter import *
       
     2 
       
     3 # This example program creates a scroling canvas, and demonstrates
       
     4 # how to tie scrollbars and canvses together. The mechanism
       
     5 # is analogus for listboxes and other widgets with
       
     6 # "xscroll" and "yscroll" configuration options.
       
     7 
       
     8 class Test(Frame):
       
     9     def printit(self):
       
    10         print "hi"
       
    11 
       
    12     def createWidgets(self):
       
    13         self.question = Label(self, text="Can Find The BLUE Square??????")
       
    14         self.question.pack()
       
    15 
       
    16         self.QUIT = Button(self, text='QUIT', background='red',
       
    17                            height=3, command=self.quit)
       
    18         self.QUIT.pack(side=BOTTOM, fill=BOTH)
       
    19         spacer = Frame(self, height="0.25i")
       
    20         spacer.pack(side=BOTTOM)
       
    21 
       
    22         # notice that the scroll region (20" x 20") is larger than
       
    23         # displayed size of the widget (5" x 5")
       
    24         self.draw = Canvas(self, width="5i", height="5i",
       
    25                            background="white",
       
    26                            scrollregion=(0, 0, "20i", "20i"))
       
    27 
       
    28         self.draw.scrollX = Scrollbar(self, orient=HORIZONTAL)
       
    29         self.draw.scrollY = Scrollbar(self, orient=VERTICAL)
       
    30 
       
    31         # now tie the three together. This is standard boilerplate text
       
    32         self.draw['xscrollcommand'] = self.draw.scrollX.set
       
    33         self.draw['yscrollcommand'] = self.draw.scrollY.set
       
    34         self.draw.scrollX['command'] = self.draw.xview
       
    35         self.draw.scrollY['command'] = self.draw.yview
       
    36 
       
    37         # draw something. Note that the first square
       
    38         # is visible, but you need to scroll to see the second one.
       
    39         self.draw.create_rectangle(0, 0, "3.5i", "3.5i", fill="black")
       
    40         self.draw.create_rectangle("10i", "10i", "13.5i", "13.5i", fill="blue")
       
    41 
       
    42         # pack 'em up
       
    43         self.draw.scrollX.pack(side=BOTTOM, fill=X)
       
    44         self.draw.scrollY.pack(side=RIGHT, fill=Y)
       
    45         self.draw.pack(side=LEFT)
       
    46 
       
    47 
       
    48     def scrollCanvasX(self, *args):
       
    49         print "scrolling", args
       
    50         print self.draw.scrollX.get()
       
    51 
       
    52 
       
    53     def __init__(self, master=None):
       
    54         Frame.__init__(self, master)
       
    55         Pack.config(self)
       
    56         self.createWidgets()
       
    57 
       
    58 test = Test()
       
    59 
       
    60 test.mainloop()