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from __future__ import annotations
from .core import Key
class Layout:
offset: int
def __init__(self, offset: int = 24):
self.offset = offset
def get_pitch(self, key: Key) -> int:
pass
class WickiHaydenLayout(Layout):
def get_pitch(self, key: Key) -> int:
x, y = key.pos
return int(self.offset + 2 * x + 6 * y)
class HarmonicLayout(Layout):
def get_pitch(self, key: Key) -> int:
x, y = key.pos
return int(self.offset + 4 * x + 5 * y)
class GerhardLayout(Layout):
def get_pitch(self, key: Key) -> int:
x, y = key.pos
return int(self.offset + 3 * x + 2.5 * y)
class JankoLayout(Layout):
def get_pitch(self, key: Key) -> int:
x, y = key.pos
return int(self.offset + 2 * x)
class TradPianoLayout(Layout):
PITCHES = [0, 1, 2, 3, 4, -1, 5, 6, 7, 8, 9, 10, 11, -1]
def get_pitch(self, key: Key) -> int:
x, y = key.pos
p = self.PITCHES[int(2 * x) % 14]
o = (2 * x) // 14 + y // 2
if p < 0:
return p
return int(self.offset + p + 12 * o)
LAYOUTS = {
"wicki/hayden": WickiHaydenLayout,
"harmonic table": HarmonicLayout,
"gerhard": GerhardLayout,
"jankó": JankoLayout,
"trad piano": TradPianoLayout,
}
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