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