[linux-audio-dev] Knobs / widget design

[Dave Robillard]

On Thu, 2004-06-10 at 10:22, torbenh at gmx.de wrote:
> On Wed, Jun 09, 2004 at 04:25:15PM -0700, Tim Hockin wrote:
> > On Wed, Jun 09, 2004 at 11:56:59PM +0200, Arnold Krille wrote:
> > > Still the question is: What toolkit to use for a 
> > > standard-LAD-Gui-elements-set? Or just define the graphics and the handling 
> > > and then let everyone implement it in his/her preferred toolkit? The last 
> > > would be my suggestion, and maybe I am volunteering to create on for Qt...
> > 
> > Other way around?  Define a graphics system so I can add my own
> > knob-graphics, and you make them work.
> > 
> 
> ok... small history of my experience with knobs:
> 
> i used a gif animation for the galan knob.
> seemed nice because i know the size and the number of frames.
> dawback: only 1 transparancy bit.
> 
> knob looks ugly on black background.
> 
> now i moved the code to use png which has real alpha information.
> put all frames in a row.
> 
> but i have to hardcode the size or the number of frames.
> (dont remember what i hardcoded (perhaps both :( ) )
> 
> [snip]

What about MNG?  It's basically just animated png, is it not?

I know there's a libmng, but I've never used it so I don't know if it's
any good.

-DR-