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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import board
import busio
from kmk.extensions.display import Display, TextEntry, ImageEntry
from kmk.extensions.display.ssd1306 import SSD1306
from supervisor import ticks_ms
class NamedLayer(TextEntry):
""" This is a named layer which return the name of the current mappng as text.
"""
def __init__(self, keyboard, *args, **kwargs):
super().__init__(*args, **kwargs)
self._text = None
self.keyboard = keyboard
@property
def text(self):
try:
return self.keyboard.keymap[0].name
except:
return self._text
@text.setter
def text(self, value):
self._text = value
class CustomDisplay(Display):
""" Create a custom Display object which refresh the display everytime the
layout is updated
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self._prevLayers = None
def during_bootup(self, keyboard):
super().during_bootup(keyboard)
self.keyboard = keyboard
def before_matrix_scan(self, sandbox):
""" Override the default function with the layer name as a comparaison
key
"""
super().before_matrix_scan(sandbox)
if self.keyboard.keymap[0].name != self._prevLayers:
self.timer_start = ticks_ms()
self._prevLayers = self.keyboard.keymap[0].name
self.render(sandbox.active_layers[0])
return
def main(keyboard):
driver = SSD1306(
i2c=busio.I2C(board.SCL, board.SDA),
)
display = CustomDisplay(
display=driver,
)
display.entries = [
NamedLayer(keyboard, text="", x=0, y=0),
]
keyboard.extensions.append(display)
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