MyQtEditor

A lightweight Markdown editor built with Qt/C++ featuring live preview, search & replace, and i18n support.

Features

• Live Preview — Split-view with Markdown editor on the left and HTML preview on the right
• Markdown Support — Real-time conversion of headings (#, ##, ###), paragraphs, and line breaks
• Search & Replace — Ctrl+F to open search dialog with find next, replace one, and replace all
• File Operations — New, Open (.txt, .md), Save with file dialog
• i18n Ready — Chinese (zh_CN) translation support via Qt Linguist
• Cross-platform — Builds on Windows, macOS, and Linux

Screenshot

┌─────────────────────┬─────────────────────┐
│                     │                     │
│   Markdown Editor   │   HTML Preview      │
│                     │                     │
│   # Hello World     │   Hello World       │
│   Some text here    │   Some text here    │
│                     │                     │
└─────────────────────┴─────────────────────┘

Prerequisites

• Qt 5 or Qt 6 (Widgets module)
• CMake >= 3.16
• C++17 compiler

Build

mkdir build && cd build
cmake ..
make

On Windows with Qt installed:

mkdir build && cd build
cmake -G "MinGW Makefiles" ..
mingw32-make

Usage

./MyQtFirstApp

• Ctrl+N — New file
• Ctrl+O — Open file
• Ctrl+S — Save file
• Ctrl+F — Find & Replace

Project Structure

MyQtEditor/
├── CMakeLists.txt          # Build configuration
├── main.cpp                # Entry point
├── mainwindow.h/cpp/ui     # Main window with editor & preview
├── searchdialog.h/cpp/ui   # Search & replace dialog
└── MyQtFirstApp_zh_CN.ts   # Chinese translation file

Tech Stack

• Language: C++17
• Framework: Qt 5/6 (Widgets)
• Build System: CMake

License

MIT