Re: [Tkinter-discuss] Listbox size

Thanks Micheal! I am going to save the "number of lines" snippet for future reference. Best, On Wed, Feb 14, 2018 at 3:42 PM, Michael Lange wrote: > Hi, > > On Tue, 13 Feb 2018 17:11:47 -0700 > Bob van der Poel wrote: > > > Getting closer :) > > > > I

Re: [Tkinter-discuss] Listbox size

Hi, On Tue, 13 Feb 2018 17:11:47 -0700 Bob van der Poel wrote: > Getting closer :) > > I asked the question wrongly. I need to determine the number of VISIBLE > lines in the listbox. Should be (as used in my previous example) visible_lines =

Re: [Tkinter-discuss] Listbox size

Getting closer :) I asked the question wrongly. I need to determine the number of VISIBLE lines in the listbox. Using the .winfo_height() does return the height in pixels. Note: You do have to make the widget visible before doing this, otherwise you just get "1" returned. widget.update() works

Re: [Tkinter-discuss] Listbox size

On Wed, 14 Feb 2018 00:32:09 +0100 Michael Lange wrote: (...) > I guess > this simple function is certainly not perfect (but maybe it is already > good enough): um, maybe that test() function should be slightly changed, like this (although yview() does not seem to complain

Re: [Tkinter-discuss] Listbox size

On Tue, 13 Feb 2018 17:19:44 -0600 Bryan Oakley wrote: (...) > Another trick would be to get the index of the item at the 0th pixel > location of the widget (eg: the_listbox.index("@0,0"), and another at > the pixel location for the height of the widget (ie: by using the

Re: [Tkinter-discuss] Listbox size

Hi, On Wed, 14 Feb 2018 03:19:29 +0530 Bhaskar Chaudhary wrote: > Hi Bob > > Are you looking for the number of items in the listbox ? > If yes this should give you the number of items. > > print(len(listbox.get(0, END))) > > Given that each item occupies one line in the

Re: [Tkinter-discuss] Listbox size

Hi, On Tue, 13 Feb 2018 17:09:30 -0600 Bryan Oakley wrote: > The actual height of any widget can be obtained with the winfo_height > method. It returns the value in pixels. To get the height in number of > lines you'll have to compute the height of your font and do a

Re: [Tkinter-discuss] Listbox size

Hi, On Tue, 13 Feb 2018 15:36:55 -0700 Bob van der Poel wrote: > I know how to find the number of items. Just like you show. > > No, this is not the size of the box. I have maybe 2000 entries. I can > set the current selection, etc with code like this: > >

Re: [Tkinter-discuss] Listbox size

If your actual goal is to scroll the listbox so that an item is centered, you can first scroll the item as far as possible and then call the "see" method. For example, if the result is in the first half of the items, scroll all the way down (listbox.yview("end")). If it's in the second half,

Re: [Tkinter-discuss] Listbox size

The actual height of any widget can be obtained with the winfo_height method. It returns the value in pixels. To get the height in number of lines you'll have to compute the height of your font and do a little math. On Tue, Feb 13, 2018 at 12:11 PM, Bob van der Poel wrote:

Re: [Tkinter-discuss] Listbox size

I know how to find the number of items. Just like you show. No, this is not the size of the box. I have maybe 2000 entries. I can set the current selection, etc with code like this: self.lb.select_clear(ACTIVE) # needed to un-hilite existing selection self.lb.activate(x)

Re: [Tkinter-discuss] Listbox size

Hi Bob Are you looking for the number of items in the listbox ? If yes this should give you the number of items. print(len(listbox.get(0, END))) Given that each item occupies one line in the list box, i think it the same as giving the height in lines. regards Bhaskar On 2/13/18, Bob van der

[Tkinter-discuss] Listbox size

Is there a way to get the current height (hopefully in lines) of a listbox? I'd like to center, vertically, the result of a search. -- Listen to my FREE CD at http://www.mellowood.ca/music/cedars Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: b...@mellowood.ca WWW: