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Viewing changes to Demo/tkinter/matt/canvas-with-scrollbars.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2009-03-23 00:01:27 UTC
  • Revision ID: james.westby@ubuntu.com-20090323000127-5fstfxju4ufrhthq
Tags: upstream-3.1~a1+20090322
Import upstream version 3.1~a1+20090322

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Demo/tkinter/matt/canvas-with-scrollbars.py
 
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from tkinter import *
 
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# This example program creates a scroling canvas, and demonstrates
 
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# how to tie scrollbars and canvses together. The mechanism
 
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# is analogus for listboxes and other widgets with
 
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# "xscroll" and "yscroll" configuration options.
 
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class Test(Frame):
 
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    def printit(self):
 
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        print("hi")
 
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    def createWidgets(self):
 
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        self.question = Label(self, text="Can Find The BLUE Square??????")
 
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        self.question.pack()
 
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        self.QUIT = Button(self, text='QUIT', background='red',
 
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                           height=3, command=self.quit)
 
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        self.QUIT.pack(side=BOTTOM, fill=BOTH)
 
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        spacer = Frame(self, height="0.25i")
 
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        spacer.pack(side=BOTTOM)
 
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        # notice that the scroll region (20" x 20") is larger than
 
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        # displayed size of the widget (5" x 5")
 
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        self.draw = Canvas(self, width="5i", height="5i",
 
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                           background="white",
 
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                           scrollregion=(0, 0, "20i", "20i"))
 
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        self.draw.scrollX = Scrollbar(self, orient=HORIZONTAL)
 
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        self.draw.scrollY = Scrollbar(self, orient=VERTICAL)
 
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        # now tie the three together. This is standard boilerplate text
 
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        self.draw['xscrollcommand'] = self.draw.scrollX.set
 
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        self.draw['yscrollcommand'] = self.draw.scrollY.set
 
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        self.draw.scrollX['command'] = self.draw.xview
 
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        self.draw.scrollY['command'] = self.draw.yview
 
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        # draw something. Note that the first square
 
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        # is visible, but you need to scroll to see the second one.
 
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        self.draw.create_rectangle(0, 0, "3.5i", "3.5i", fill="black")
 
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        self.draw.create_rectangle("10i", "10i", "13.5i", "13.5i", fill="blue")
 
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        # pack 'em up
 
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        self.draw.scrollX.pack(side=BOTTOM, fill=X)
 
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        self.draw.scrollY.pack(side=RIGHT, fill=Y)
 
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        self.draw.pack(side=LEFT)
 
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    def scrollCanvasX(self, *args):
 
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        print("scrolling", args)
 
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        print(self.draw.scrollX.get())
 
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    def __init__(self, master=None):
 
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        Frame.__init__(self, master)
 
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        Pack.config(self)
 
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        self.createWidgets()
 
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test = Test()
 
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test.mainloop()