[linux-audio-dev] [OT] 2-D slider widget?

[ix at replic.net]

On Tue, Jul 26, 2005 at 05:00:58PM +0100, James McDermott wrote:
> Has anyone written code for, or even just seen, a 2-D slider widget?
> What toolkit was it in? Do people around here prefer QT to GTK+, or
> vice versa, and does anyone use FLTK, or something else?

> 
> I think the ideal widget would allow the user to click or
> click-and-drag a cursor around the 2-D area, returning x and y
> coordinates of course; and would allow a bitmap to be displayed
> underneath the cursor; and would allow some way to constrain the
> cursor movements (eg within a circular area inside the widget).
> 

you might want to check out PHAT. it has fan-sliders and other crazy stuff and is geared towards GTK+ audio interfaces.

http://www.gazuga.net/phat.php

> Such a thing would be great for lots of audio applications, like
> controlling filter cutoff and resonance at the same time. That's what
> I'll be doing, only a bit more complicated..!