Merge pull request #2 from jpcurti/1-configure-rotary-encoder-buttons…

…-with-buttons-module-from-klipper-display

1 configure rotary encoder buttons with buttons module from klipper display

klippy/extras/e3v3se_display.py

@@ -0,0 +1,84 @@
+import logging
+import time
+from .display import menu_keys
+
+class E3v3seDisplay:
+
+    ENCODER_DIFF_NO = 0  # no state
+    ENCODER_DIFF_CW = 1  # clockwise rotation
+    ENCODER_DIFF_CCW = 2  # counterclockwise rotation
+    ENCODER_DIFF_ENTER = 3  # click
+
+    EncoderRateLimit = True
+
+    def __init__(self, config):
+        self.printer = config.get_printer()
+        self.config = config
+        self.mutex = self.printer.get_reactor().mutex()
+        self.name = config.get_name()
+        self.reactor = self.printer.get_reactor()
+        self._logging = config.getboolean("logging", False)
+        self.gcode = self.printer.lookup_object("gcode")
+        self.printer.register_event_handler("klippy:ready", self.handle_ready)
+        self.encoder_state = self.ENCODER_DIFF_NO
+
+        # register for key events
+        menu_keys.MenuKeys(config, self.key_event)
+
+        self._update_interval = 1
+        self._update_timer = self.reactor.register_timer(self._screen_update)
+
+    def key_event(self, key, eventtime):
+        if key == 'click':
+            self.log("click")
+            self.encoder_state = self.ENCODER_DIFF_ENTER
+        elif key == 'long_click':
+            self.log("long_click")
+            self.encoder_state = self.ENCODER_DIFF_ENTER
+        elif key == 'up':
+            self.log("up")
+            self.encoder_state = self.ENCODER_DIFF_CCW
+        elif key == 'down':
+            self.log("down")
+            self.encoder_state = self.ENCODER_DIFF_CW
+
+        self.encoder_has_data()
+
+    def get_encoder_state(self):
+        last_state = self.encoder_state
+        self.encoder_state = self.ENCODER_DIFF_NO
+        return  last_state
+
+    def encoder_has_data(self):
+        self.log("Key event")
+        return 
+
+    def _screen_update(self, eventtime):
+        #self.log("Display update: ")
+        return eventtime + self._update_interval
+
+    def _screen_init(self, eventtime):
+        self.reactor.update_timer(
+            self._update_timer, eventtime + self._update_interval)
+        return self.reactor.NEVER
+
+    def handle_ready(self):
+        self.reactor.register_timer(
+            self._reset_screen, self.reactor.monotonic())
+
+    def _reset_screen(self, eventtime):
+        self.log("Reset")
+        self.reactor.register_timer(
+            self._screen_init, self.reactor.monotonic() + 2.)
+        return self.reactor.NEVER
+
+    def log(self, msg, *args, **kwargs):
+        if self._logging:
+            logging.info("E3V3SE Display: " + str(msg))
+
+    def error(self, msg, *args, **kwargs):
+        logging.error("E3V3SE Display: " + str(msg))
+
+def load_config(config):
+    return E3v3seDisplay(config)
+