Display Service Separation
The display service in Scarpe is separated from the main application to provide better isolation and flexibility. This design choice allows for:
- Clear separation between the application logic and display logic
- Ability to swap out display implementations
- Better testing capabilities through isolation
- Reduced coupling between components
Architecture
The display service runs as a separate process from the main Scarpe application. Communication happens through a well-defined protocol that includes:
- Event messages for user interactions
- Display update commands
- State synchronization messages
Benefits
This separation provides several key benefits:
- Security: The display service can run with different permissions
- Stability: Issues in the display layer won’t crash the main application
- Flexibility: Different display implementations can be used without changing the core application
- Testing: Components can be tested in isolation
Implementation Details
The display service communicates with the main application through a message-passing interface. This allows for:
- Asynchronous updates
- Clean separation of concerns
- Easy testing and mocking
- Future extensibility