def convert_to_home(
self
): # First of three conversion functions, to convert from the destination to the home currency.
try: # Tries this block of code first, but should a Value Error appear it will act out the except ValueError code
country_details = (
currency.get_all_details()
) # runs get_all_details in the currency.py file to obtain country codes in a dictionary
amount = float(
self.root.ids.input_location.text
) # Sets the current text as a float in the location/destination text field
home_currency = self.root.ids.country_name.text # obtains the country name from the GUI
home_currency = country_details[home_currency] # uses the name as a key on the already obtained dictionary
home_currency_code = home_currency[1] # Gets the country code from the result
target_currency = (
self.root.ids.spinner.text
) # Does the same as previous 3 lines, but for the target currency
target_currency = country_details[target_currency]
target_currency_code = target_currency[1]
converted_number = currency.convert(
amount, target_currency_code, home_currency_code
) # runs the convert function in currency.py
self.status_update(
target_currency[2].strip("\n"), target_currency_code, home_currency[2].strip("\n"), home_currency_code
) # Sets the status to show the conversion and the updated time
self.root.ids.input_home.text = (
converted_number
) # shows in the GUI text field that the currency was not entered what the conversion is
except ValueError: # Runs if a value error appears in the above code
self.root.ids.input_home.text = "-1" # this will be shown as the 'conversion' should a value error arise
self.root.ids.status.text = "Error in Conversion" # this is shown in the status.
def convert_to_home(
self
): #First of three conversion functions, to convert from the destination to the home currency.
try: #Tries this block of code first, but should a Value Error appear it will act out the except ValueError code
country_details = currency.get_all_details(
) #runs get_all_details in the currency.py file to obtain country codes in a dictionary
amount = float(
self.root.ids.input_location.text
) #Sets the current text as a float in the location/destination text field
home_currency = self.root.ids.country_name.text #obtains the country name from the GUI
home_currency = country_details[
home_currency] #uses the name as a key on the already obtained dictionary
home_currency_code = home_currency[
1] #Gets the country code from the result
target_currency = self.root.ids.spinner.text #Does the same as previous 3 lines, but for the target currency
target_currency = country_details[target_currency]
target_currency_code = target_currency[1]
converted_number = currency.convert(
amount, target_currency_code,
home_currency_code) #runs the convert function in currency.py
self.status_update(
target_currency[2].strip('\n'), target_currency_code,
home_currency[2].strip('\n'), home_currency_code
) #Sets the status to show the conversion and the updated time
self.root.ids.input_home.text = converted_number #shows in the GUI text field that the currency was not entered what the conversion is
except ValueError: #Runs if a value error appears in the above code
self.root.ids.input_home.text = "-1" #this will be shown as the 'conversion' should a value error arise
self.root.ids.status.text = "Error in Conversion" #this is shown in the status.
def build(self):
self.trip_details = Details()
# main window widget build
self.title = "Foreign Exchange Calculator"
self.root = Builder.load_file('gui.kv')
Window.size = (500, 700)
# text input disable
self.root.ids.input_country_amount.disabled = True
self.root.ids.input_home_country_amount.disabled = True
# status label - config file
if not os.path.isfile('config.txt'):
self.root.ids.status.text = "The config file cannot be loaded"
return
else:
self.root.ids.status.text = "The config file successfully loaded"
# retrieving home country
file = open('config.txt', encoding='utf-8')
home_country = file.readline()
home_country = home_country.rstrip("\n")
self.root.ids.home_country_label.text = home_country
file.close()
# retrieving values for the spinner
file = open('config.txt', encoding='utf-8')
country_names = file.readlines()
file.close()
del(country_names[0])
sorted_country_names = sorted(country_names)
# removes date details from the country list
a = -1
for countries in range(len(sorted_country_names)):
a += 1
sorted_country_name = sorted_country_names[a]
sorted_country_name_split = sorted_country_name.rstrip("\n").split(",")
country_list_dictionary = currency.get_all_details(sorted_country_name_split[0])
country_name_codes = sorted(country_list_dictionary.keys())
self.root.ids.country_selection.values = country_name_codes
# date
self.root.ids.date.text = self.root.ids.date.text + time.strftime("%Y/%m/%d")
# current location
file = open('config.txt', encoding='utf-8')
country_details = file.readlines()
del(country_details[0])
current_time = time.strftime("%Y/%m/%d")
b = -1
for i in range(len(country_details)):
b += 1
country_details_separated = country_details[b]
country_details_split = country_details_separated.rstrip("\n").split(",")
self.trip_details.add(country_details_split[0], country_details_split[1], country_details_split[2])
self.current_location = self.trip_details.current_country(current_time)
self.root.ids.current_destination_label.text += self.current_location
return self.root
def change_state(self, target_country):
self.root.ids.current_country_input.readonly = False
self.root.ids.home_country_input.readonly = False
self.target_country = self.root.ids.country_spinner.text
all_details = get_all_details()
for country in all_details:
if target_country == country:
details = all_details[country]
target_country_details = details[0]
target_currency_new = target_country_details[1]
# If the currency code has not changed, do not update
if not target_currency_new == self.target_currency:
self.target_currency = target_currency_new
self.get_conversion_rate()
return [self.target_currency, target_country_details[2]]
def convert_to_location(self): # Same as previous function except inversed
try:
country_details = currency.get_all_details()
amount = float(self.root.ids.input_home.text)
home_currency = self.root.ids.country_name.text
home_currency = country_details[home_currency]
home_currency_code = home_currency[1]
target_currency = self.root.ids.spinner.text
target_currency = country_details[target_currency]
target_currency_code = target_currency[1]
converted_number = currency.convert(amount, home_currency_code, target_currency_code)
self.root.ids.input_location.text = converted_number
self.status_update(
home_currency[2].strip("\n"), home_currency_code, target_currency[2].strip("\n"), target_currency_code
)
except ValueError:
self.root.ids.input_location.text = "-1"
self.root.ids.status.text = "Error in Conversion"
def get_country_details(self):
""" Retrieves country details for home/travel """
travel_country = self.travel_country
home_country = self.home_country
country_details_dict = get_all_details()
# Find currency code/symbol for home/travel country
for parts in country_details_dict:
if travel_country == parts:
# If currency symbol is the same, and list not blank, return "Same"
if self.travel_details and country_details_dict[parts][2] == self.travel_details[2]:
self.update_indicator = False
self.travel_details = country_details_dict[parts]
if home_country == parts:
self.home_details = country_details_dict[parts]
# If either list is blank, display error
if not self.travel_details or not self.home_details:
self.toggle_inputs_disabled(True)
self.root.ids.status_label.text = "Invalid Name!"
def convert_to_location(self): #Same as previous function except inversed
try:
country_details = currency.get_all_details()
amount = float(self.root.ids.input_home.text)
home_currency = self.root.ids.country_name.text
home_currency = country_details[home_currency]
home_currency_code = home_currency[1]
target_currency = self.root.ids.spinner.text
target_currency = country_details[target_currency]
target_currency_code = target_currency[1]
converted_number = currency.convert(amount, home_currency_code,
target_currency_code)
self.root.ids.input_location.text = converted_number
self.status_update(home_currency[2].strip('\n'),
home_currency_code,
target_currency[2].strip('\n'),
target_currency_code)
except ValueError:
self.root.ids.input_location.text = "-1"
self.root.ids.status.text = "Error in Conversion"
def on_start(self):
number = 0
# checks if config could be loaded
try:
# gets details for the Destination dictionary
self.Destinations = currency.get_all_details()
# loads data from congig file and checks if its valid or not
files = open(File_name, "r", encoding="utf-8")
try:
for line in files:
number += 1
# if not first line add data to current_trip object, else is first line, add data to home_country
if number > 1:
parts = line.strip().split(',')
self.current_trip.add(parts[0], parts[1], parts[2])
else:
self.home_country = line.strip()
self.root.ids.status_window.text = "Config Load Succesful"
except:
self.root.ids.status_window.text = "Config File Invalid Details"
# update currency data, labels and spinner for start
self.currency_update()
self.cdate = time.strftime("%Y-%m-%d")
self.current_country = self.current_trip.current_country(self.cdate)
self.root.ids.country_select.text = self.current_country
self.root.ids.country_select.values = self.current_trip.location
self.root.ids.home_country.text = self.home_country
self.root.ids.date_label.text = "Todays date is: \n" + str(self.cdate)
except:
self.app_can_run = False
self.root.ids.status_window.text = "Config Load Failed"
# check if spinner is empty and if so disable spinner
if self.root.ids.country_select.text == "?":
self.root.ids.country_amount.background_color = Colour
self.root.ids.home_amount.background_color = Colour
self.root.ids.country_amount.readonly = True
self.root.ids.home_amount.readonly = True
# make the current country label equal the current country
self.root.ids.country_selected.text = "Current Trip Location: " + self.current_country
def conversion_rates(
self
): # Same as the first conversion function, however always defaults to only converting 1 in the selected currency for the conversion rate rather than an actual conversion
try:
country_details = currency.get_all_details()
amount = float("1")
home_currency = self.root.ids.country_name.text
home_currency = country_details[home_currency]
home_currency_code = home_currency[1]
target_currency = self.root.ids.spinner.text
target_currency = country_details[target_currency]
target_currency_code = target_currency[1]
converted_number = currency.convert(amount, target_currency_code, home_currency_code)
self.status_update(
target_currency[2].strip("\n"), target_currency_code, home_currency[2].strip("\n"), home_currency_code
)
self.root.ids.input_home.text = converted_number
self.root.ids.input_location.text = "1"
except ValueError:
self.root.ids.input_home.text = "-1"
self.root.ids.status.text = "Error in Conversion"
def load_config(self):
try:
config_data = open("config.txt", mode='r', encoding="utf-8")
self.home_country = config_data.readline().strip("\n")
# Retrieve locations from config.txt file format: location,start_date,end_date
self.details.locations = []
self.country_list = []
for line in config_data.readlines():
parts = line.strip().split(",")
# add all details to locations
self.details.locations.append(tuple(parts))
# checks country exists
for key in get_all_details():
if parts[0] == key:
# add only country names to country_list
self.country_list.append(parts[0])
else:
self.status_text = "Invalid trip details"
config_data.close()
self.status_text = "Config loaded\nsuccessfully"
except FileNotFoundError:
self.status_text = "Config could not\nbe loaded"
def get_currency_conversion(self, directions):
# print(directions)
# creates a dictionary from the currency module
place_dictionary = get_all_details()
# stores the user selection from the spinner gui
spinner_location = self.root.ids.country_selection.text
# print(spinner_location)
location_currency = place_dictionary[spinner_location][1]
home_currency = place_dictionary[self.home_country][1]
# print(location_currency)
# print(home_currency)
# provides the status message and conversion amount in the gui
# allows for back and forth conversion
if directions == 'to home':
value = convert(float(self.root.ids.target_amount.text),
home_currency, location_currency)
self.root.ids.home_amount.text = str(value)
self.root.ids.status.text = location_currency + ' to ' + home_currency
else:
value = convert(float(self.root.ids.home_amount.text),
location_currency, home_currency)
self.root.ids.target_amount.text = str(value)
self.root.ids.status.text = home_currency + ' to ' + location_currency
def conversion_rates(
self
): #Same as the first conversion function, however always defaults to only converting 1 in the selected currency for the conversion rate rather than an actual conversion
try:
country_details = currency.get_all_details()
amount = float("1")
home_currency = self.root.ids.country_name.text
home_currency = country_details[home_currency]
home_currency_code = home_currency[1]
target_currency = self.root.ids.spinner.text
target_currency = country_details[target_currency]
target_currency_code = target_currency[1]
converted_number = currency.convert(amount, target_currency_code,
home_currency_code)
self.status_update(target_currency[2].strip('\n'),
target_currency_code,
home_currency[2].strip('\n'),
home_currency_code)
self.root.ids.input_home.text = converted_number
self.root.ids.input_location.text = "1"
except ValueError:
self.root.ids.input_home.text = "-1"
self.root.ids.status.text = "Error in Conversion"
def get_symbol(self, country):
if country in get_all_details().keys():
symbol = get_all_details()[country][0][2]
return symbol
else:
return None
def __init__(self):
super().__init__()
self.trip_details = currency.get_all_details()
def build(self):
self.trip_details = Details()
# main window widget build
self.title = "Foreign Exchange Calculator"
self.root = Builder.load_file('gui.kv')
Window.size = (500, 700)
# text input disable
self.root.ids.input_country_amount.disabled = True
self.root.ids.input_home_country_amount.disabled = True
# status label - config file
if not os.path.isfile('config.txt'):
self.root.ids.status.text = "The config file cannot be loaded"
return
else:
self.root.ids.status.text = "The config file successfully loaded"
# retrieving home country
file = open('config.txt', encoding='utf-8')
home_country = file.readline()
home_country = home_country.rstrip("\n")
self.root.ids.home_country_label.text = home_country
file.close()
# retrieving values for the spinner
file = open('config.txt', encoding='utf-8')
country_names = file.readlines()
file.close()
del (country_names[0])
sorted_country_names = sorted(country_names)
# removes date details from the country list
a = -1
for countries in range(len(sorted_country_names)):
a += 1
sorted_country_name = sorted_country_names[a]
sorted_country_name_split = sorted_country_name.rstrip("\n").split(
",")
country_list_dictionary = currency.get_all_details(
sorted_country_name_split[0])
country_name_codes = sorted(country_list_dictionary.keys())
self.root.ids.country_selection.values = country_name_codes
# date
self.root.ids.date.text = self.root.ids.date.text + time.strftime(
"%Y/%m/%d")
# current location
file = open('config.txt', encoding='utf-8')
country_details = file.readlines()
del (country_details[0])
current_time = time.strftime("%Y/%m/%d")
b = -1
for i in range(len(country_details)):
b += 1
country_details_separated = country_details[b]
country_details_split = country_details_separated.rstrip(
"\n").split(",")
self.trip_details.add(country_details_split[0],
country_details_split[1],
country_details_split[2])
self.current_location = self.trip_details.current_country(current_time)
self.root.ids.current_destination_label.text += self.current_location
return self.root
