I am constructing a tuning fork app. The fork should allow up to 12 preset pitches.
Moreover, I wish to allow the user to choose a theme. Each theme will load a set of presets (not necessary to use all of them).
My configuration file would look something like this*:
(* of course I am happy to modify the format in order to simplify the necessary code, the consideration is that the customer will be building their own file by hand, so I want to avoid unnecessary overhead / obfuscation)
theme: "A3"
comment: "An octave below concert pitch (ie A4 440Hz)"
presets: {
A3 220Hz=220.0
}
//
http://en.wikipedia.org/wiki/Guitar_tuning
theme: "Guitar Standard Tuning"
comment:"EADGBE using 12-TET tuning"
presets: {
E2=82.41
A2=110.00
D3=146.83
G3=196.00
B3=246.94
E4=329.63
}
theme: "Bass Guitar Standard Tuning"
comment: "EADG using 12-TET tuning"
presets: {
E1=41.204
A2=55.000
D3=73.416
G3=97.999
}
...which need to be extracted into some structure like this:
@class Preset
{
NSString* label;
double freq;
}
@class Theme
{
NSString* label;
NSMutableArray* presets;
}
NSMutableArray* themes;
What are my options? How can I achieve this tidily? Can anyone point me towards some relevant code?
(NOTE: this is NOT a duplicate of another question that has practically an identical title, so please don't flag it just because the titles match)
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