kmk_firmware/kmk/firmware.py
2018-09-03 04:22:52 -07:00

83 lines
2.1 KiB
Python

from kmk.common.keymap import KEY_DOWN_EVENT, KEY_UP_EVENT, Keymap
try:
from kmk.circuitpython.matrix import MatrixScanner
except ImportError:
from kmk.micropython.matrix import MatrixScanner
class ReduxStore:
def __init__(self, reducer):
self.reducer = reducer
self.state = self.reducer()
def dispatch(self, action):
self.state = self.reducer(self.state, action)
def get_state(self):
return self.state
class InternalState:
modifiers_pressed = frozenset()
keys_pressed = frozenset()
def __repr__(self):
return 'InternalState(mods={}, keys={})'.format(
self.modifiers_pressed,
self.keys_pressed,
)
def copy(self, modifiers_pressed=None, keys_pressed=None):
new_state = InternalState()
if modifiers_pressed is None:
new_state.modifiers_pressed = self.modifiers_pressed.copy()
else:
new_state.modifiers_pressed = modifiers_pressed
if keys_pressed is None:
new_state.keys_pressed = self.keys_pressed.copy()
else:
new_state.keys_pressed = keys_pressed
return new_state
def reducer(state=None, action=None):
if state is None:
state = InternalState()
if action is None:
return state
if action['type'] == KEY_UP_EVENT:
new_state = state.copy(keys_pressed=frozenset(
key for key in state.keys_pressed if key != action['keycode']
))
print(new_state)
return new_state
if action['type'] == KEY_DOWN_EVENT:
new_state = state.copy(keys_pressed=(
state.keys_pressed | {action['keycode']}
))
print(new_state)
return new_state
class Firmware:
def __init__(self, keymap, row_pins, col_pins, diode_orientation):
self.raw_keymap = keymap
self.keymap = Keymap(keymap)
self.matrix = MatrixScanner(col_pins, row_pins, diode_orientation)
self.store = ReduxStore(reducer)
def go(self):
while True:
self.keymap.parse(self.matrix.raw_scan(), store=self.store)