Implement comprehensive pattern rotation functionality:
- Use Konva Transformer for native rotation UI with visual handles
- Apply rotation transformation at upload time to stitch coordinates
- Two-layer preview system: original (draggable/rotatable) and uploaded (locked)
- Automatic position compensation for center shifts after rotation
- PEN encoding/decoding with proper bounds calculation from decoded stitches
- Comprehensive unit tests for rotation math and PEN round-trip
- Restore original unrotated pattern on delete
The rotation is applied by transforming stitch coordinates around the pattern's
geometric center, then re-encoding to PEN format. Position adjustments compensate
for center shifts caused by PEN encoder rounding to maintain visual alignment.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Auto-formatted by linter:
- Single quotes → double quotes
- Line wrapping for better readability
No logic changes.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Removed redundant patternUploaded state from PatternStore and replaced
it with a derived selector usePatternUploaded() in MachineStore that
computes it from patternInfo !== null.
This eliminates duplicate state, removes the need for synchronization
logic, and ensures a single source of truth for pattern upload status.
Updated all components (App, LeftSidebar, FileUpload, PatternCanvas,
WorkflowStepper) to use the derived selector.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Moved embroidery format-related code from utils to new formats folder:
Structure:
- src/formats/pen/ - PEN format encoding and parsing
- encoder.ts (was utils/penEncoder.ts)
- encoder.test.ts (was utils/penEncoder.test.ts)
- parser.ts (was utils/penParser.ts)
- PEN constants moved inline to encoder.ts
- src/formats/import/ - Pattern import/conversion (currently PES)
- worker.ts (was workers/patternConverter.worker.ts)
- client.ts (was utils/patternConverterClient.ts)
- pesImporter.ts (was utils/pystitchConverter.ts)
- pyodideLoader.ts (was utils/pyodideLoader.ts)
- constants.ts (PyStitch/pyembroidery constants)
Benefits:
- Better separation of concerns
- PEN encoder is co-located with PEN parser
- Import logic is in one place and extensible for other formats
- Removed utils/embroideryConstants.ts - split into appropriate locations
- Updated all 18 import references across the codebase
All tests passing, build successful.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Move Pyodide/PyStitch pattern conversion to a dedicated Web Worker for
non-blocking UI performance. Pyodide now loads in the background on app
startup with real-time progress indicator showing download and initialization
status.
Key changes:
- Create patternConverter.worker.ts with full PES to PEN conversion logic
- Add patternConverterClient.ts singleton for worker management
- Implement progress tracking (0-100%) with step descriptions
- Add inline progress bar in FileUpload component with contextual messaging
- Configure COEP headers for Electron to support Web Workers
- Pass dynamic asset URLs to worker for file:// protocol support
- Update UIStore with progress state management
- Simplify pystitchConverter.ts to delegate to worker client
Benefits:
- Truly non-blocking UI (heavy Python/WASM runs off main thread)
- Real progress feedback during 15MB Pyodide download
- Works in both browser and Electron (dev and production)
- Faster app startup perception with background loading
- Better UX with "waiting" state if user clicks before ready
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Add zustand dependency for modern state management
- Create three separate stores for better code organization:
- useMachineStore: Machine connection, status, and operations
- usePatternStore: Pattern data, offset, and upload state
- useUIStore: Pyodide and UI-specific state
- Migrate App.tsx from useBrotherMachine hook to Zustand stores
- Use useShallow for optimized multi-value selections
- Implement dynamic polling intervals based on machine state
- Add ESLint ignore for .vite build directory
Benefits:
- Better separation of concerns with logical store divisions
- Improved performance through selector-based subscriptions
- Cleaner code replacing 445-line hook with maintainable stores
- Full TypeScript support with proper typing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
