Tkinter Toplevel sizing issue (using a grid)

[eb303]

On Jun 12, 1:40 am, random joe <pywi... at gmail.com> wrote:
> Hello all,
>
> Hi this i my first post here. I would like to create a tkinter
> toplevel window with a custom resize action based on a grid. From the
> Tk docs it say you can do this but for the life of me i cannot figure
> out how? In my app i wish for the main window to only resize in 20
> pixel "jumps" (if you will). I have tried using the toplevel.grid()
> and setgrid option and no luck!
>
> ## here is the tk doc page about setGridhttp://www.tcl.tk/man/tcl/TkLib/SetGrid.htm
>
> ## here is the Tkinter method from wm class
>     def wm_grid(self,
>          baseWidth=None, baseHeight=None,
>          widthInc=None, heightInc=None):
>         """Instruct the window manager that this widget shall only be
>         resized on grid boundaries. WIDTHINC and HEIGHTINC are the
> width and
>         height of a grid unit in pixels. BASEWIDTH and BASEHEIGHT are
> the
>         number of grid units requested in Tk_GeometryRequest."""
>         return self._getints(self.tk.call(
>             'wm', 'grid', self._w,
>             baseWidth, baseHeight, widthInc, heightInc))
>     grid = wm_grid
>
> ## Here is my code.
>
> from Tkinter import *
>
> class TopWin(Tk):
>     def __init__(self):
>         Tk.__init__(self)#, setgrid=1)
>         #self.maxsize(width=50, height=50)
>         #self.minsize(width=1, height=1)
>         self.grid(10, 10, 20, 20)
>
> topwin = TopWin()
> topwin.mainloop()
>
> Please help. I am going nuts trying to make this work for three hours
> already :(

Works for me on Linux with WindowMaker, but not on the Mac. What is
your platform, and your window manager if applicable? Seems tk just
passes the options to the window manager, so if the wm decides to
ignore them, you're stuck, I'd say.

By the way, you should use more drastic values for your tests. I tried
with self.grid(10, 10, 20, 20) and I hardly saw that it worked. Using
self.grid(0, 0, 100, 100) made it obvious.

HTH
 - Eric -