telmo-sousa / rust_calc

Simple calculator written in Rust using GTK

rust_calc

The Rust Calculator project, also known as rust_calc, is a graphical calculator application built with the Rust programming language and GTK toolkit.
It allows users to perform basic arithmetic operations, including addition, subtraction, multiplication, and division.
The calculator features a clean and intuitive graphical user interface, making it easy for users to input expressions and obtain results.
This project includes tests to ensure that the calculator performs the correct operations and handles errors appropriately.
Say NO to 'Legacy code'

Features

• Addition
• Subtraction
• Multiplication
• Division
• ... and more

How operations are added to the GUI

 let operations = vec!["+", "-", "*", "/"];
    for (i, operation) in operations.iter().enumerate() {
        let operation = operation.clone();
        let button = Button::with_label(operation);
        let label_clone = Rc::clone(&label);
        button.connect_clicked(move |_| {
            let current_text = label_clone.borrow().text().to_string();
            let new_text = format!("{} {} ", current_text, operation);
            label_clone.borrow_mut().set_text(&new_text);
        });
        grid.attach(&button, 3, i as i32 + 1, 1, 1);
    }

How operations are performed

  match parts[1] {
        "+" => Ok(operand1 + operand2),
        "-" => Ok(operand1 - operand2),
        "*" => Ok(operand1 * operand2),
        "/" => {
            if operand2 != 0.0 {
                Ok(operand1 / operand2)
            } else {
                Err("Division by zero")
            }
        }
        _ => Err("Invalid operator"),
    }

How to Run

Prerequisites

Make sure you have Rust on your machine.

Download the Unix Executable File

This executable file is located in the releases tab, or you can download it here.
It can be created when you run the project and is found at /src/target/debug or /src/target/release depending on how you build it.
To check if your system is Unix based click here.

Run the Project

To run the project, execute the following command:

cargo run

Example

This is a brief example of my project.