[Tcl-bugs] [ tktoolkit-Bugs-464451 ] long, multi-column menus post offscreen

[<no...@so...>]

Bugs item #464451, was opened at 2001-09-24 08:41
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=112997&aid=464451&group_id=12997

Category: 10. Generic Menus
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Vince Darley (vincentdarley)
>Assigned to: Jeffrey Hobbs (hobbs)
Summary: long, multi-column menus post offscreen

Initial Comment:
Under some circumstances, a tk_optionMenu can post its 
menu largely offscreen.  I've observed the problem 
both with single and multi-column menus, but have only 
been able to make a simple, reproducible example with 
multi-column menus.

The following script shows how to achieve this:

>wish84

% eval tk_optionMenu .om enc [lsort [encoding names]]
.om.menu
% pack .om
% .om.menu entryconfigure 45 -columnbreak 1

Now, drag '.' to somewhere close to the top of the 
screen (my screen is 780 pixels tall, for reference), 
or at least in the top quarter.

Now, use the option menu and select an item towards 
the end of the menu (e.g. "unicode" in the menu 
constructed above).  

Now try using the option menu a second time.  It posts 
almost completely off the bottom of the screen, 
nowhere near the menu-button itself!

(The above works on Win2000 sp2, at least, but the 
problem appears to be in tk's 'menu.tcl' file which 
controls menu posting)

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