Re: Bug 490017 =?ISO-8859-1?Q?--_Feature_Request=3A_GTK_?= =?ISO-8859-1?Q?MIDI-Learn_functionality?=


ricardo colon schrieb:
> I just submitted a feature request to bugzilla.
> I chose to post this message to gtk-devel-list since the feature
> is related to the gtk input method API.
> I'd like to hear your comments.

I currently do this in buzztard [1] with a helper subsystem (btic). The
subsystem abstracts input devices (e.g. joystick) and midi devices currently.
In the application I bind controller events (button presses and movments) to ui

Its not so easy to add generic support for this on gtk level. button presses
ould probably be handled like accelerators, but then the accelerator support in
gtk is already really poor (try to define an accelerator that select next entry
in combobox, or that simply toggle a toogletoolbar button).

But mapping a knob-move to e.g. a spinbutton or slider would require some more
powerful subsystem (accelerators can only trigger actions = booleans).

Summasumarum - I would love to have this in gtk, but it requires a good concept
and a patch that implements it. I am willing to discuss the proposal, but sorry
- no time to write the patch.


> Message is below:
> ---------------------------------------------------------------------------------------------------
> Taking a cue from the interface design in audio software...
> In the world of audio software, engineers normally
> use what's called control surfaces to control their DAW(digital
> audio workstations) and virtual instruments. Right now,
> this type of functionality is done via MIDI, although I'm
> not sure if MIDI would be appropriate for general purpose applications.
> I was wondering if it's possible(or reasonable) for GTK
> to bring the same functionality to applications.
> For example, imagine if you could assign the controls
> for brightness, contrast, and sharpness in GIMP/Pixel/Krita to a set of
> faders/knobs on something like a CME Bitstream
> 3X(
> or any other control surface for that matter.
> Also, imagine if you could assign a frequently used GUI Menu
> to a button on the MIDI controller. And then when the menu comes into
> focus, your controller would automatically switch to your assigned
> button settings for that menu.
> I really think this idea could go a long way in increasing productivity.
> The combination of mouse and keyboard can be cumbersome in cases where
> a controller might make things much easier.
> Anyway, I'd like to hear some comments.
> Thanks.
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> gtk-devel-list mailing list
> gtk-devel-list gnome org

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