[gmpi] Re: 3.11 topic: Inter-parameter linkages
- From: Tim Hockin <thockin@xxxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Tue, 13 Apr 2004 19:59:54 -0700
On Wed, Apr 14, 2004 at 02:18:57PM +1200, Jeff McClintock wrote:
> The way SynthEdit does it
> - Knob gets "mouse moving" message
> - GUI calls the actor
> - actor modifies 1.0 to 0.75, sets parameter
> - Parameter broadcasts to all listeners "update yourself"
> - GUI re-draws
> - no latency (no visible 'jittering')
This is "correct" MVC. A big gripe of a lot of MVC folk is that toolkits
which claim to be MVC do this wrongly. The GUI draws in response to the
mouse move, and NOT the notification from the M to the V. V and C should
be logically separate.
> What's really interesting: In the same situation, will a motorised control
> surface fight back?
It should. :) Or an endless rotary knob with LEDs around it should never
move past the clipped limit.
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