RhenoCalc

RhenoCalc is a Qt desktop toolbox focused on practical engineering utilities. It combines a calculator, converters, network tools, and CRC/hash functions in one app.

Features

• Scientific calculator with arbitrary precision (Boost.Multiprecision)
• Multiple number bases (binary, octal, decimal, hexadecimal) and bit-width modes
• Trigonometric functions, logarithms, and constants (π, e)
• Base converter with live bit visualization
• Unit converter (length, weight, temperature, and more)
• IEEE 754 float inspector (32-bit and 64-bit)
• Network tools: IPv4/CIDR calculator, traceroute
• CRC and hash tools (CRC-8/16/32, MD5, SHA-1/256/512)
• Color picker with hex/RGB/HSL conversion and screen pipette
• Finance calculator (interest, loan payments)
• Electronics helpers (LED resistor, Ohm's law)
• Dark and light theme with keyboard shortcuts

Requirements

• CMake 3.21+
• C++20 compiler (MinGW, GCC, or Clang)
• Qt 6 modules: Core, Gui, Widgets, Network
• Boost (fetched automatically via CMake FetchContent)

Important: your Qt kit and compiler must match the same architecture (for example both x64).

Build

cmake -S . -B build -G Ninja
cmake --build build

Run

./build/RhenoCalc

On Windows, the output is RhenoCalc.exe. If Qt is detected correctly, windeployqt is executed in a post-build step.

Deployment Helpers

• Windows: scripts/deploy_windows.ps1
• Linux: scripts/deploy_ubuntu.sh
• macOS: scripts/deploy_macos.sh

These scripts help package the app with Qt runtime dependencies. On Linux, the script can create an AppImage when linuxdeploy is installed. On macOS, the script creates a .app bundle and optionally a DMG.

Updates

RhenoCalc checks for updates on startup. When a new version is available, a notification appears in the status bar with a link to the GitHub releases page. Download the latest release manually from: https://github.com/pgschwend/rhenocalc/releases

Linux Notes

For traceroute functionality, install the traceroute package:

sudo apt install traceroute

Project Layout

• src/pages/: Qt UI widgets, layouts, and signal/slot wiring
• src/core/: calculation logic and reusable backend modules
• src/ui/: main window and shared UI theme handling
• src/resources/: icons, stylesheets, and Qt resource files
• scripts/: deployment and packaging scripts