Grid (possible scrollable) in Tkinter?

[Greg McFarlane]

On 30 Aug, Def P wrote:
> ... Tkinter does not have a
> scrollable listbox. To make one isn't that hard...

You are correct in saying that it is easy to write a simply scrollable
listbox (see below *).

To this you may like to add things like a horizontal scrollbar (as
well as the vertical); dynamic display (only display the scrollbars
when necessary); convenient methods to populate the listbox; an
optional label; a margin between the scrollbar and the listbox; single
and double click callbacks; easy and consistent configurability of all
component options, etc.  You may then want to use all this as part of
a dropdown listbox (combobox).  If you want these features, it may
save you some pain to reuse an existing library, such as Pmw.

> ...Is building these things worthwile or shouldn't I bother
> and look into libraries like Pmw? For me, the ideal situation would be if I
> could distribute my programs without requiring external libraries.

If you are worried about having a dependency on Pmw, it is easy to
concatenate all of the Pmw modules you require into a single file and
include this with your software distribution.  A script to do this can
be found in bin/bundlepmw.py in the Pmw distribution at
<http://www.dscpl.com.au/pmw/>.


* Simple example of scrollable listbox:

    l = Tkinter.Listbox()
    l.pack(side = 'left', fill = 'both', expand = 1)
    sb = Tkinter.Scrollbar(command = l.yview)
    sb.pack(side = 'left', fill = 'y')
    l.configure(yscrollcommand = sb.set)

-- 
Greg McFarlane:    INMS Telstra Australia (gregm at iname.com)
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