CALCULATOR CREATED IN C++ USING RENDER LIB SDL3

About

Its simple 600x950 Calculator created in C++ 17 using SDL3 lib used for renderering.

How to build project?

Linux Ubuntu/Debian:

1. First Clone git repo

git clone https://github.com/Pekos123/Calculator.git
cd Calculator

2. Make build direcotry and run cmake

mkdir build
cd build
cmake ../CMakeLists.txt
make

3. Run calculator

src/calculator

for tests

tests/calculator_tests

Calculator Usage

• ESC Key for quit
• Suported math operations: '-' subtraction, '+' addition, ':' devide, 'x' multiplication;
• Other '±' toggle negative number sign, '.' adding decimal point, '=' calculate results;

Project Structure

Calculator/          
├── src/                     # Source files          
│   ├── main.cpp             # Application entry point          
│   ├── CalculatorApp.cpp    # Main application class   
│   ├── CalculatorEngine.cpp # All math logic 
│   ├── Button.cpp           # Button UI component          
│   ├── Text.cpp             # Text rendering component          
│   ├── Frame.cpp            # UI layout container          
│   ├── Event.cpp            # Events          
│   ├── GUIElement.cpp       # Base UI element class          
│   └── CMakeLists.txt       # CMake build configuration          
├── include/                 # Header files          
│   ├── CalculatorApp.h
│   ├── CalculatorEngine.h         
│   ├── Button.h         
│   ├── Text.h           
│   ├── Frame.h          
│   ├── Event.h          
│   ├── GUIElement.h     
│   └── CMakeLists.txt       # CMake build configuratio
├── tests/                   # Unit test using Gtest lib
├── lib/                  
├── font.otf                 # Application font
├── CMakeLists.txt           # CMake build configuration
├── .gitignore               # Git ignore rules
└── README.md                # This file

Architecture

The calculator follows a modular architecture:

• CalculatorApp: Main application class handling initialization and game loop
• CalculatorEngine: Handle all calculator logic
• GUIElement: Base class for all UI components
• Button: Interactive button component with text and click event handling
• Text: Text rendering component using SDL3_ttf
• Frame: Layout container for organizing UI elements

Dependencies

• SDL3
• SDL3_ttf
• GTest
• CMake (build system)
• C++17 compatible compiler

Photos