Tkinter Canvas/Grid question

Michael Peuser mpeuser at web.de
Thu Sep 11 09:40:42 CEST 2003


Hi Gary

> from Tkinter import *
>
> class Test(Frame):
>     def __init__(self, parent):
>         Frame.__init__(self, parent)
>         frame = Frame(parent)

There is some confusion here: self *is* the frame, no need or use to make
another....

>         self.canvas = Canvas(frame, bg='white' , width=300, height=100)

There is some trick needed here: add:
        self.rowconfigure(0, weight=1)
        self.columnconfigure(0, weight=1)

>         self.canvas.grid(row=0, column=0, sticky='NESW')
>         frame.grid()
This packs the frame to the parent, so it limits the size of your frame in
any case
I should recommend pack in this place (which is possible, because it's
another frame)

Altogether it shall look as follows and work fine:

    def __init__(self, parent):
        Frame.__init__(self, parent)
        self.pack(fill=BOTH,expand=1)

        self.canvas = Canvas(self, bg='white' , width=300, height=100)
        self.rowconfigure(0, weight=1)
        self.columnconfigure(0, weight=1)
        self.canvas.grid(row=0, column=0, sticky='nesw')







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