Tkinter: why does an empty frame not shrink?

[Rob Hooft]

From: R.Hooft at EuroMail.com (Rob Hooft)

>>>>> "GM" == Greg McFarlane <gregm at iname.com> writes:

 GM> If you have several child widgets packed in a frame and you
 GM> unpack the children one by one, the frame will gradually get
 GM> smaller, except when the last child is unpacked, in which case
 GM> the frame does not resize.  Does anyone know why the frame does
 GM> not shrink to 0x0 when you unpack the last child?  Any soluton?

In one of my applications, I put the frame inside another frame, and
resize the empty container frame to 1x1 manually to solve this. Ugly,
but it works:

    def makeWidgets(self,fn=None):
        self.rightbarvar=variables.booleanvariable() # used in a menu entry
        self.rightbarvar.set(1)
        ....
        self.rightbarc=Tkinter.Frame(self)
       
self.rightbarc.pack(expand=Tkinter.NO,fill=Tkinter.Y,side=Tkinter.RIGHT)
        self.rightbar=Tkinter.Frame(self.rightbarc)
        self.rightbar.pack(expand=Tkinter.NO,fill=Tkinter.Y,side=Tkinter.RIGHT)
        ....

    def togglerightbar(self):
        if self.rightbarvar.get():
           
self.rightbar.pack(expand=Tkinter.NO,fill=Tkinter.Y,side=Tkinter.RIGHT)
        else:
            self.rightbar.pack_forget()
        self.rightbarc.configure(width=1,height=1)

Regards,

Rob Hooft
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