ListBox.set_focus will cause an assertion if focus is being changed to an off-screen widget and the coming_from parameter is not set. This patch fixes the bug: http://excess.org/urwid/patch-0.8.8.1.diff Ian
-------------- next part -------------- An embedded message was scrubbed... From: cantabile <cantabile.03 <at> wanadoo.fr> Subject: Find focused Edit Date: Tue, 19 Jul 2005 17:23:37 +0200 Size: 854 Url: http://lists.excess.org/pipermail/urwid/attachments/20050719/5d14b5b7/FindfocusedEdit.mht
cantabile wrote: >Hi all, > >I'm trying end write a urwid based gui for server tools install. >I have several Edit's piled (with Pile() of course) in Columns. >Now, I'd like to display some help for each Edit in the frame footer. >I'm aware that get_focus() exists, but in that case, it gives back a >Column instead of the Edit. >How could I do to get the highlighted / focused Edit to display its >help, or the app. to retrieve the highlighted Edit when it changes ? > >Thanks for your help. > Columns and Pile objects also have get_focus() methods that you can use to drill down to the Edit widget. To make your code generic with respect to the containing Columns and Pile widgets you could use a "while hasattr( w, 'get_focus' ): w = w.get_focus()" loop to drill down. Ian
Ian Ward a ?crit : > cantabile wrote: > > >Hi all, > > > >I'm trying end write a urwid based gui for server tools install. > >I have several Edit's piled (with Pile() of course) in Columns. > >Now, I'd like to display some help for each Edit in the frame footer. > >I'm aware that get_focus() exists, but in that case, it gives back a > >Column instead of the Edit. > >How could I do to get the highlighted / focused Edit to display its > >help, or the app. to retrieve the highlighted Edit when it changes ? > > > >Thanks for your help. > > > > Columns and Pile objects also have get_focus() methods that you can > use to drill down to the Edit widget. To make your code generic with > respect to the containing Columns and Pile widgets you could use a > "while hasattr( w, 'get_focus' ): w = w.get_focus()" loop to drill down. > > Ian > > > _______________________________________________ > Urwid mailing list > Urwid <at> lists.excess.org > http://lists.excess.org/mailman/listinfo/urwid >(Continue reading)
Ian Ward a ?crit : > cantabile wrote: > > >Hi all, > > > >I'm trying end write a urwid based gui for server tools install. > >I have several Edit's piled (with Pile() of course) in Columns. > >Now, I'd like to display some help for each Edit in the frame footer. > >I'm aware that get_focus() exists, but in that case, it gives back a > >Column instead of the Edit. > >How could I do to get the highlighted / focused Edit to display its > >help, or the app. to retrieve the highlighted Edit when it changes ? > > > >Thanks for your help. > > > > Columns and Pile objects also have get_focus() methods that you can > use to drill down to the Edit widget. To make your code generic with > respect to the containing Columns and Pile widgets you could use a > "while hasattr( w, 'get_focus' ): w = w.get_focus()" loop to drill down. > > Ian > > > _______________________________________________ > Urwid mailing list > Urwid <at> lists.excess.org > http://lists.excess.org/mailman/listinfo/urwid >(Continue reading)
cantabile wrote: > > Another idea : is it possible that wrapping the edits in urwid.Padding and urwid.AttrWrap stops the loop before it reaches the urwid.Edit itself ? Yes, I think that is what is happening. The Edit is within an AttrWrap, which is in a Padding widget. The Padding and AttrWrap widgets keep the widgets they contain in members called "w". However, this won't help you get to your help text because that is in your "It" class, not in the Edit widget. I think the best thing would be to turn your It class into a widget, and use it directly. You could either: 1. implement the methods shown in http://excess.org/urwid/reference.html#Widget_interface_definition with stubs that make calls to self.padd.methodname, or 2. have your It class inherit from urwid.Padding, and remove the padd member from your It class. (your get method could return self) Either way once you drill down through your Columns and Padding widgets you will find your It object, with the help text you need. Ian (Sorry for the slow response, I'm at OLS this week)
Hi, I'd like to extend the program I'm writing to a multi screen interface, wizard-like. So far, I know how to draw screen but not how to clear it. What would be the best way to get that kind of app (say : we change wizard page when user inputs F2, for example) ? Thanks.
cantabile wrote: > Hi, > I'd like to extend the program I'm writing to a multi screen > interface, wizard-like. > So far, I know how to draw screen but not how to clear it. > What would be the best way to get that kind of app (say : we change > wizard page when user inputs F2, for example) ? > > Thanks. To switch between different screens you can render a different top-level widget depending on which screen you want to display and pass that canvas to draw_screen(..). If you want to have different screens that share the same top level Frame widget then you can change its body widget like this: my_top_frame.body = some_other_body where some_other_body is a listbox or other box widget. Then when you render the top Frame widget its contents will have changed. Ian
Ian Ward a ?crit :
> Ian Ward wrote:
>
> Let me know if my message is difficult to understand.. I can post some
> code if you like.
>
> Ian
>
Hi again,
Well, I followed the second method :
class It(urwid.Padding):
def __init__(self, titre, valeur):
self.widget = urwid.Edit(('editcp', titre + " : "), valeur)
urwid.Padding.__init__(self,urwid.AttrWrap(self.widget,
'editbx','editfc')\
, ('fixed left',3), ('fixed right',1),
MIDCOL)
def get(self):
return self
def getval(self):
return self.widget.get_edit_text()
# code cut ...
Then, in my run loop, I'm drilling down like this :
w, pos = self.listbox.get_focus()
(Continue reading)
-------------- next part -------------- An embedded message was scrubbed... From: cantabile <cantabile.03 <at> wanadoo.fr> Subject: Re: [Urwid] multi-screen app ? Date: Sat, 30 Jul 2005 17:14:59 +0200 Size: 1609 Url: http://lists.excess.org/pipermail/urwid/attachments/20050730/cf8548df/Urwidmulti-screenapp.mht
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