Update to the backend and new Screen.

Features:
- Added a new settings page
- Laid out some backend stuff to integrate some new features
- prepared backend to include an option to have the previous values also displayed when updating them both screens where you may change configuration of the microcontroller

BiogasControllerApp-V2.2/bin/lib/csv_parsers.py

@@ -0,0 +1,122 @@
+"""@package docstring
+This is a simplification of the csv module"""
+
+import csv
+
+
+class CsvRead:
+    """This is a class that reads csv files and depending on the module selected does do different things with it"""
+    def __init__(self):
+        self.__imp = ""
+        self.__raw = ""
+        self.__raw_list = ""
+
+    def importing(self, path):
+        """Returns a list of the imported csv-file, requires path, either direct system path or relative path"""
+        self.__imp = open(path)
+        self.__raw = csv.reader(self.__imp, delimiter=',')
+        self.__raw_list = list(self.__raw)
+        self.__imp.close()
+        return self.__raw_list
+
+
+class CsvWrite:
+    """This is a class that modifies csv files"""
+    def __init__(self):
+        self.__impl = []
+        self.__strpop = []
+        self.__removed = []
+        self.__removing = 0
+        self.__change = 0
+        self.__appending = 0
+        self.__imp = []
+        self.__raw = []
+
+    def rem_str(self, path, row):
+        """Opens the csv-file in write mode which is specified as an argument either as direct or relative path"""
+        self.__imp = open(path)
+        self.__raw = csv.reader(self.__imp, delimiter=',')
+        self.__impl = list(self.__raw)
+        self.__removed = self.__impl.pop(row + 1)
+        with open(path, "w") as removedata:
+            self.__removing = csv.writer(removedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+            self.__removing.writerow(self.__impl.pop(0))
+        while len(self.__impl) > 0:
+            with open(path, "a") as removedata:
+                self.__removing = csv.writer(removedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+                self.__removing.writerow(self.__impl.pop(0))
+        self.__imp.close()
+        removedata.close()
+
+
+    def chg_str(self, path, row, pos, new_value):
+        """Opens the csv-file in write mode to change a value, e.g. if a recipes is changed."""
+        self.__imp = open(path)
+        self.__raw = csv.reader(self.__imp, delimiter=',')
+        self.__impl = list(self.__raw)
+        self.__strpop = self.__impl.pop(row)
+        self.__strpop.pop(pos)
+        self.__strpop.insert(pos, new_value)
+        self.__impl.insert(row, self.__strpop)
+        with open(path, "w") as changedata:
+            self.__change = csv.writer(changedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+            self.__change.writerow(self.__impl.pop(0))
+        while len(self.__impl) > 0:
+            with open(path, "a") as changedata:
+                self.__removing = csv.writer(changedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+                self.__removing.writerow(self.__impl.pop(0))
+        self.__imp.close()
+        changedata.close()
+
+    def chg_str_rem(self, path, row, pos):
+        """Opens the csv-file in write mode to change a value, e.g. if a recipes is changed."""
+        self.__imp = open(path)
+        self.__raw = csv.reader(self.__imp, delimiter=',')
+        self.__impl = list(self.__raw)
+        self.__strpop = self.__impl.pop(row)
+        self.__strpop.pop(pos)
+        self.__strpop.pop(pos)
+        self.__impl.insert(row, self.__strpop)
+        with open(path, "w") as changedata:
+            self.__change = csv.writer(changedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+            self.__change.writerow(self.__impl.pop(0))
+        while len(self.__impl) > 0:
+            with open(path, "a") as changedata:
+                self.__removing = csv.writer(changedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+                self.__removing.writerow(self.__impl.pop(0))
+        self.__imp.close()
+        changedata.close()
+
+    def chg_str_add(self, path, row, new_value1, new_value2):
+        """Opens the csv-file in write mode to change a value, e.g. if a recipes is changed."""
+        self.__imp = open(path)
+        self.__raw = csv.reader(self.__imp, delimiter=',')
+        self.__impl = list(self.__raw)
+        self.__strpop = self.__impl.pop(row)
+        self.__strpop.append(new_value1)
+        self.__strpop.append(new_value2)
+        self.__impl.insert(row, self.__strpop)
+        with open(path, "w") as changedata:
+            self.__change = csv.writer(changedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+            self.__change.writerow(self.__impl.pop(0))
+        while len(self.__impl) > 0:
+            with open(path, "a") as changedata:
+                self.__removing = csv.writer(changedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+                self.__removing.writerow(self.__impl.pop(0))
+        self.__imp.close()
+        changedata.close()
+
+    def app_str(self, path, value):
+        """Opens the csv-file in append mode and writes given input. CsvWrite.app_str(path, value).
+        Path can be specified both as direct or relative. value is a list. Will return an error if type of value is
+        not a list."""
+        with open(path, "a") as appenddata:
+            self.__appending = csv.writer(appenddata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+            self.__appending.writerow(value)
+        appenddata.close()
+
+    def write_str(self, path, value):
+        with open(path, "w") as writedata:
+            self.__change = csv.writer(writedata, delimiter=',', quoting=csv.QUOTE_MINIMAL)
+            self.__change.writerow(value)
+        writedata.close()