10. Final Touches and Styling

• Objective: Add final touches and improve the GUI styling.

• Content:

  • Expand Pizza prices dictionary

  • Updating Pizza type to use prices dictionary

  • Adding Font and colour variables

  • Adding font and colour settings to tkinter widgets

  • Final testing.

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10.1. Expanding Pizza prices dictionary

Place the following code in Section "1. DATA DICTIONARIES & LISTS".

# Define the prices for each pizza size
prices = {
    "Margherita": {"Small": 8, "Medium": 12, "Large": 15},
    "Veggie": {"Small": 9, "Medium": 12, "Large": 16},
    "Pepperoni": {"Small": 9, "Medium": 13, "Large": 17},
    "Hawaiian": {"Small": 10, "Medium": 14, "Large": 18},
    "Capriciossa": {"Small": 10, "Medium": 14, "Large": 18},
    "Mexican": {"Small": 10, "Medium": 14, "Large": 18},
    "BBQ Chicken": {"Small": 11, "Medium": 15, "Large": 19},
    "Meat Lovers": {"Small": 11, "Medium": 15, "Large": 19}
}

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10.2. Updating Pizza type to use prices dictionary

Adjust the "# Pizza type" code section in "# 4. TKINTER WIDGETS" to use keys from the prices dictionary instead of manual entries.

This allows updating the pizza dictionary to flow through to the pizza options.

Replace ["Margherita", "Pepperoni", "Hawaiian", "Veggie"] with prices.keys().

for pizza in prices.keys():

Test these code changes.

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10.3. Adding Font and colour variables

Place the following code in Section "2. CONSTANTS & STYLES".

Using variables for fonts and colors allows for easy adjustments to the overall look of the application in one place.

# Fonts
LABEL_FONT = ("Helvetica", 12)
ENTRY_FONT = ("Helvetica", 14)
ORDER_FONT = ("Helvetica", 12)
RADIO_FONT = ("Helvetica", 12)
BUTTON_FONT = ("Helvetica", 18)

# Colors
BG_COLOR = "#f0f0f0"       # Light gray background
ENTRY_BG = "#ffffff"       # Entry box background
LIST_BG = "#ffffff"        # Listbox background
TOTAL_BG = "#c0f0c0"       # Total highlights
ADD_BG = "#c0f0c0"         # Add button
DELETE_BG = "#ffdae0"      # Delete / Cancel buttons
QUANTITY_BG = "#93ccea"    # Quantity background

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10.4. Adding font and colour settings to tkinter widgets

Add the following code lines to the relevant widget code sections in "4. TKINTER WIDGETS" to apply the font and color settings defined in the constants section.

The code snippets go after the widget creation code for each widget type (e.g., after creating labels, entries, buttons, etc.) to configure their appearance using the defined constants.

# Create the main window
root.configure(bg=BG_COLOR)

# Customer name
customer_label.config(font=LABEL_FONT, bg=BG_COLOR)

customer_entry.config(font=ENTRY_FONT, bg=ENTRY_BG)

# Pizza type
pizza_label.config(font=LABEL_FONT, bg=BG_COLOR)

pizza_frame.config(bg=BG_COLOR)

radio_button.config(font=RADIO_FONT, bg=BG_COLOR)

# Pizza size
size_label.config(font=LABEL_FONT, bg=BG_COLOR)

size_frame.config(bg=BG_COLOR)

radio_button.config(font=RADIO_FONT, bg=BG_COLOR)

# Quantity
quantity_label.config(font=LABEL_FONT, bg=BG_COLOR)

quantity_menu.config(bg=QUANTITY_BG, activebackground=QUANTITY_BG)
quantity_menu["menu"].config(bg=QUANTITY_BG)  # for menu items

# Cost per pizza display
cost_label.config(font=LABEL_FONT, bg=BG_COLOR)

# Order cost display
order_cost_label.config(font=LABEL_FONT, bg=BG_COLOR)

# Add order button
add_button.config(font=BUTTON_FONT, bg=ADD_BG)

# Orders list
orders_label.config(font=LABEL_FONT, bg=BG_COLOR)

order_list.config(font=ORDER_FONT, bg=LIST_BG, activestyle="none", highlightthickness=0, selectbackground="#d3d3d3", selectforeground="#000000")

# Delete selected pizza button
delete_pizza_button.config(font=BUTTON_FONT, bg=DELETE_BG)

# Cancel whole order button
cancel_order_button.config(font=BUTTON_FONT, bg=DELETE_BG)

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10.5. Adding color to the Orders list total

Adjust the color of the very last row (Total Cost line) by modifying the last if block in the update_order_list function.

if orders:
    order_list.insert(tk.END, f"Total cost: ${total_cost}")
    # Color code the very last row (Total Cost line)
    # Get the index number of the very last item we just added
    last_row_index = tk.END
    order_list.itemconfig(last_row_index, bg=TOTAL_BG)

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10.6. Final Testing

Test the application to ensure all features work as expected.