Re: I want popup menus :(

[muppet <scott asofyet org>]

On Jul 19, 2004, at 7:29 AM, ArtÅras Ålajus wrote:

> Torsten Schoenfeld wrote:
>
> > Why do you put user_selected() in the user data slot of popup()?  It 
> > would only be used if you provided a positioning callback.
> what's a positioning callback? =]

just what it says, a callback that the system uses to determine where 
to place the menu.

a typical use for this is to make sure the menu is on the screen, or 
pop the menu off the edge of a button regardless of where you clicked 
(e.g. the gnome foot menu or the gimp arrow-button menu).  i use this 
in the cellrenderer_popup.pl example to place menu over the "button" 
graphic such that the currently selected item is centered.

if you don't provide a positioning callback, the upper left corner of 
the menu appears at the location of the mouse.

--
"it's hard to be eventful when you have this much style."
   - me, rationalizing yet another night of sitting at home.