> Since the values for all those widgets can change dynamically
> (eg, user switches channel or turns the volume knob on the
> synthesizer) I need some way to reference to a widget by the
> parameter number that they control. For example: the user
> switches the channel. the app will ask for the volume of the
> current channel. The device responses with something like
> "130, 50" where 130 is the ID of "channel volume" and "50" is
> the value. Now i need to set the channel volume slider to the
> new value.
>
> You can probably see that it would be great if i could just
> do something like set_widget(130, 50); without an explicit
> mapping of parameter_ID->widget_name
>
> Also how to best handle this many widgets? I could continue
> adding widgets to my window class from the FLUID tutorial.
> But that would make things kinda confusing/complex.
Rather than using fluid to build your UI, maybe you can build it
programmatically, and also keep an array of pointers to all your
widgets, like...
Fl_Widget *widget_array[200];
int idx = 0;
:
:
Fl_Button *bt1 = new Fl_Button(....
widget_array[idx++] = (Fl_Widget *)bt1;
:
:
Then your set_widget(130, 50); would perhaps become something like...
set_widget(int id, float val) {
widget_array[id]->value(val);
}
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