Verze po zapracovani prvni vlny pozadavku

src/channel.py

@@ -0,0 +1,64 @@
+import logging
+import uuid
+from enum import Enum
+
+from callbacks import CallbackDispatcher, CallbackType
+
+class ChannelUnit(Enum):
+    VOLTS=1
+    PPM=2
+    AMPERS=3
+    CELSIUS=4
+
+class Channel:
+    name: str = ""
+    _active: bool = True
+    number: int = 0
+    unit: ChannelUnit
+    data = []
+    color: str = ""
+
+    _slice = []
+
+    def __init__(self):
+        self.id = uuid.uuid1()
+
+    @property
+    def active(self):
+        return self._active
+
+    def toggle_active(self):
+        self._active = not self._active
+        if self._active:
+            logging.debug(f'Enabling channel {self.name} ({self.id})')
+            CallbackDispatcher().call(CallbackType.ENABLE_CHANNEL, self.id)
+        else:
+            logging.debug(f'Disabling channel {self.name} ({self.id})')
+            CallbackDispatcher().call(CallbackType.DISABLE_CHANNEL, self.id)
+
+
+    def calibrate_data(self, offset: float=0, multiple: float=1, start=None, end=None):
+        """
+        'Calibrates' internal data by adding offset and multiplying all numbers
+        Updates the chart series
+        Marks that the data has been tainted and should be saved or discarded upon exit
+        """
+
+        if start and end:
+            self.data[start:end] = [(x + offset) * multiple for x in self.data[start:end]]
+        else:
+            self.data = [(x + offset) * multiple for x in self.data]
+        logging.debug(f'Calibrating channel {self.name} ({self.id})')
+        CallbackDispatcher().call(CallbackType.UPDATE_CHANNEL, self.id, True)
+        CallbackDispatcher().call(CallbackType.DATA_TAINTED)
+
+    def copy(self, start: int, end: int):
+        self._slice = self.data[start:end + 1]
+
+    def cut(self, start: int, end: int):
+        # save the cut and remove it from active data
+        self.copy(start, end)
+        self.data[start:end + 1] = []
+
+    def paste(self, at: int):
+        self.data[at:at] = self._slice