Re: Adjustments - multiple connections, control $page_size, etc.

[Kevin Horton <khorton01 rogers com>]

On 21 Jan 2006, at 14:58, Torsten Schoenfeld wrote:

> On Sun, 2006-01-15 at 19:59 -0500, Kevin Horton wrote:
>
> > 1. How would I control the $page_size part of an adjustment using a
> > SpinButton?  The default is to control the $value.
> >
> > 2. How would I have a SpinButton affect both the $value and
> > $page_size when the user twiddles the SpinButton?  I am trying to
> > have a way for the user to change the left edge of the displayed data
> > range, while leaving the right edge unchanged.  The adjustment $value
> > sets the left edge, and the right edge is equal to $value + $
> > page_size.  Thus I need to have SpinButton input affect both $value
> > and $page_size.
> >
> > 3. How would I connect one SpinButton to multiple widgets?  I need to
> > keep the X-axis on all widgets locked together, with just one set of
> > SpinButtons that controls all widgets.
>
> Maybe I'm missing something, but you can't achieve all of the above
> simply by connecting to the spin button's "value-changed" signal  
> and do
> whatever you want in the signal handler?

Nope, you are not missing anything at all.  About a day after I  
posted that message, I found an example which made everything much,  
much clearer to me.  I figured out how to connect a subroutine to  
each spin button's "value-changed" signal.  The subroutines control  
all the GtkDataBoxes.

I may eventually need some help, but for the moment I'm OK.

Thanks,

Kevin