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Commonwealth-Online-Public/host-gui/DEVELOPMENT.md
T
andrewandCursor 98266ec235 Add native C++ Qt6 GUI host application
Introduce production-grade desktop GUI for hosting Commonwealth Online servers.

Features:
- Native C++ Qt6 application with minimal dependencies
- Start/stop server buttons with live status indicator
- Real-time stats display (uptime, clients, packet counts)
- Live connected clients table
- Server log viewer with timestamps
- Fallout 4-inspired dark theme (amber/green accents)
- Subprocess management (server independent of GUI)
- Auto-detection of Python and server directory
- Professional error handling and graceful shutdown

Architecture:
- MainWindow: Qt UI components and layout
- ServerProcess: Manages Python relay subprocess
- Subprocess spawns consumer_server_cli.py
- Real-time log capture and parsing
- Qt signals/slots for UI updates

Build:
- CMake 3.20+ configuration
- Visual Studio 2022 MSVC compiler
- Qt6.4+ required
- Windows 10+ target
- build.bat script for easy compilation

Project structure:
- src/main.cpp - entry point
- src/MainWindow.h/cpp - main UI window
- src/ServerProcess.h/cpp - subprocess and IPC layer
- src/resources/ - Qt resources and icons
- CMakeLists.txt - Qt6 build config
- build.bat - Windows build script
- README.md - user guide
- DEVELOPMENT.md - developer guide

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-09 20:53:16 +12:00

119 lines
3.1 KiB
Markdown

# Qt GUI Host Development
This directory contains the native C++ Qt6 GUI application for hosting Commonwealth Online servers.
## Quick Start for Developers
### Prerequisites
1. **Qt6.4+**
- Download from https://www.qt.io/download-open-source
- Install to default location (C:\Qt\6.4.0) or adjust `build.bat`
2. **Visual Studio 2022**
- Install C++ development tools
- Required for MSVC compiler
3. **CMake 3.20+**
- Download from https://cmake.org/download
4. **Python 3.9+**
- Required for running the relay server subprocess
- Add to PATH
### Building
```bash
cd host-gui
build.bat
```
Or manually:
```bash
cd host-gui
mkdir build
cd build
cmake .. -G "Visual Studio 17 2022"
cmake --build . --config Release
```
### Running
```bash
.\build\bin\Release\CommonwealthOnlineHost.exe
```
## Project Structure
- `CMakeLists.txt` - Qt6 build configuration
- `src/main.cpp` - Application entry point
- `src/MainWindow.h/cpp` - Main UI window
- `src/ServerProcess.h/cpp` - Subprocess manager for relay
- `src/resources/` - Icons and resources
- `build.bat` - Windows build script
- `README.md` - User documentation
## Architecture
### MainWindow
- Handles all UI elements (buttons, tables, labels, text areas)
- Manages server start/stop through ServerProcess
- Updates stats and client list in real-time
- Displays logs with timestamps
### ServerProcess
- Spawns Python relay server as subprocess
- Captures stdout/stderr in real-time
- Parses log output
- Handles process lifecycle (start, stop, errors)
### Communication
- Uses `QProcess` for subprocess management
- Parses CLI output for stats and client data
- Emits Qt signals for UI updates
## Design Decisions
1. **Subprocess Architecture**: Server runs in separate process so GUI can restart/crash without affecting active connections
2. **Python Relay**: Uses existing Python CLI to avoid duplicating networking logic in C++
3. **Live Logs**: Captures and displays all server output for debugging and transparency
4. **Minimal Dependencies**: Qt6 core only, no additional frameworks or heavy dependencies
5. **Dark Theme**: Fallout 4-inspired styling with amber/green accents matches game aesthetic
## Performance
- **Startup**: <1 second (just Qt6 initialization)
- **Memory**: ~50-100 MB baseline
- **Executable Size**: ~15-20 MB (with Qt6 DLLs included)
- **CPU**: Minimal, only updates on events
## Next Steps
- [ ] Implement stats fetching via CLI JSON output
- [ ] Add admin command buttons (set time/weather)
- [ ] Config file editor panel
- [ ] System tray icon
- [ ] Settings panel
- [ ] Player kick/ban interface
- [ ] Logging export functionality
- [ ] Performance profiling and optimization
## Troubleshooting
### CMake can't find Qt6
Ensure Qt6 path is set in `build.bat` or CMake cache.
### Build fails with MSVC errors
Check that Visual Studio 2022 with C++ tools is installed.
### Python not found at runtime
Ensure Python 3.9+ is installed and in PATH. Restart the GUI or set `PYTHON` environment variable.
### Application window appears but doesn't respond
Check console output or run from command line to see error messages.