Re: vslider min at bottom

[Jim Edwards <jimedwards altavista com>]

Ron Steinke wrote:

> > From: Jan-Marek Glogowski <glogow stud fbi fh-darmstadt de>
> >
> > Hi Jim
> >
> > > How do you specify that the minimum value of a vslider should be at the
> > > bottom rather than the top?   On a similar topic , can i make a slider
> > > work on a logarithmic scale?
> >
> > As Havoc wrote it's not possible directly. But you can "map" the values of
> > the slider, when you connect a signal to GtkAdjustment "value-changed" event.
> >
> > So my solution would be
> >
> > - define th adjustment from 0 .. 100.
> > - on the event make 100 - value and store it somwhere, where other
> > funtions, which need the value of the slider can get it. Now you have
> > slider with the min value at the bottom.
> >
> > Something similar applies to your logar logarithmic scale.
>
> And if you want to be exceptionally clever, you can make a new object
> derived from GtkAdjustment which implments this as a new signal.
>
>

I thought i was doing really good just to turn off the print of the slider value
and replace it with a label that I update
with my derived value.  I'm still a bit baffled by inheritance in Gtk but I do
want to learn - care to send this out as an example?

Jim




> Ron Steinke
>
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