Re: How to enter a floating-point number ?

[Gan3sh <gan3sh wanadoo fr>]

Le mer 26/05/2004 à 22:16, Tristan Van Berkom a écrit :
> Gan3sh wrote:
> > Hi,
> >
> > I would like to add a widget in my application to be able to enter a
> > floating-point number and only that.
> > If I use a GtkEntry, I didn't see in the doc how to restrict the
> > available characters to only digits (and also . + -).
> > And if I use a GtkSpinButton, I didn't see how to set the arrows
> > unvisible.
> >
> > Is there another widget for entering only a number ?
>
> Hmmm,
>      I dont think this should be in the gtk+ domain.
> Why not just use a GtkEntry and use string conversion utilities
> (i.e. isdigit() or some varient) ?

The main reason is because some users consider that being able to enter
a letter in "number field" is a bug.
Secondly, there is some overcost in terms of development to display a
message in case of wrong entry.
That's why I was looking a widget that was doing this filter directly.

Anyway, thanks to everyone,
Stéphane.