symbian-qemu-0.9.1-12/python-2.6.1/Demo/tkinter/matt/canvas-with-scrollbars.py
author johnathan.white@2718R8BGH51.accenture.com
Mon, 08 Mar 2010 18:45:03 +0000
changeset 46 b6935a90ca64
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority

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??????")
        self.question.pack()

        self.QUIT = Button(self, text='QUIT', background='red',
                           height=3, command=self.quit)
        self.QUIT.pack(side=BOTTOM, fill=BOTH)
        spacer = Frame(self, height="0.25i")
        spacer.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",
                           background="white",
                           scrollregion=(0, 0, "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['xscrollcommand'] = self.draw.scrollX.set
        self.draw['yscrollcommand'] = 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_rectangle(0, 0, "3.5i", "3.5i", fill="black")
        self.draw.create_rectangle("10i", "10i", "13.5i", "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()