[Tkinter-discuss] Widget to appear square-shaped on screen...

[Michael Lange]

Hi,

On Tue, 20 Jul 2010 14:55:51 -0300
Roberto Gomez <rgomez at autotrol.com.ar> wrote:

> GKalman wrote:
> > I'm trying to make a square-shaped  board, something like this:
> > 
> > from Tkinter import *
> > 
> > root = Tk()
> > w=[]
> > for k in range(9):
> >     i=k/3
> >     j=k%3    
> >     w.append(Label(root,text=str(k),bg="red",width=5,height=5))
> >     w[k].grid(row=i,column=j,padx=2,pady=2,ipadx=5,ipady=5)
> > mainloop()
> > 
> > It shows up on my screen as rectangular (non-square) shaped. What
> > do I have to do to make it appear in a square-shaped form (i.e.
> > with Label height & width to be equal on the sceen)?
> 
> The problem is that you can't do that with Label widgets, because
> width and height is relative to the font used. The units of width is 
> caracters, no pixels, and the units of height is lines, no pixels.
> As a probe of concept, change Label for Canvas and eliminate the 
> parameter "text=str(k)"
> hth
> 

Actually you can do this very easily with a Label, the trick is to
use an empty image, so width and height will be measured in pixels :

>>> from Tkinter import *
>>> root = Tk()
>>> i = PhotoImage()
>>> l = Label(root, text='foo', image=i, width=200, height=200, compound='center', relief='solid')
>>> l.pack(padx=10, pady=10)

Using the empty image it should not matter if you set compound to 'center' or
something else, but it must be defined somehow, otherwise you will
not see the Label's text.

I hope this helps

Michael