valknar/paint-ui
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3 Commits

Author SHA1 Message Date
Sebastian Krüger
7f4d574c64 feat(tools): implement advanced brush tools - Clone Stamp, Smudge, and Dodge/Burn 
Added three professional-grade image manipulation tools to complete Feature 4:

Clone Stamp Tool (Shortcut: 8)
- Sample from source location with Alt+Click
- Paint sampled content to destination
- Maintains relative offset for natural cloning
- Supports soft/hard brush with hardness setting

Smudge Tool (Shortcut: 9)
- Creates realistic paint-smearing effects
- Progressively blends colors for natural smudging
- Uses flow setting to control smudge strength
- Soft brush falloff for smooth blending

Dodge/Burn Tool (Shortcut: 0)
- Dodge mode: Lightens image areas (default)
- Burn mode: Darkens image areas (Alt key)
- Professional photography exposure adjustment
- Respects hardness setting for precise control

All tools:
- Fully integrated with tool palette and keyboard shortcuts
- Support smooth interpolation for fluid strokes
- Use existing tool settings (size, opacity, hardness, flow, spacing)
- Lazy-loaded via code splitting system
- Icons from Lucide React (Stamp, Droplet, Sun)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-21 16:27:02 +01:00
Sebastian Krüger
2e18f43453 feat(ui/perf): implement loading states, keyboard navigation, and lazy-loaded tools 
Add comprehensive UX and performance improvements:

**Loading States & Feedback:**
- Add loading overlay with spinner and custom messages
- Integrate loading states into all file operations (open, save, export)
- Create loading-store.ts for centralized loading state management

**Keyboard Navigation:**
- Expand keyboard shortcuts to include tool selection (1-7)
- Add layer navigation with Arrow Up/Down
- Add layer operations (Ctrl+D duplicate, Delete/Backspace remove)
- Display keyboard shortcuts in tool tooltips
- Enhanced keyboard shortcut system with proper key conflict handling

**Performance - Code Splitting:**
- Implement dynamic tool loader with lazy loading
- Tools load on-demand when first selected
- Preload common tools (pencil, brush, eraser) for instant access
- Add tool caching to prevent redundant loads
- Reduces initial bundle size and improves startup time

**Integration:**
- Add LoadingOverlay to app layout
- Update canvas-with-tools to use lazy-loaded tool instances
- Add keyboard shortcut hints to tool palette UI

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-21 16:08:24 +01:00
Sebastian Krüger
4f5c78df30 feat: implement Phase 3 - History & Undo System with command pattern 
Complete undo/redo functionality with robust command pattern architecture:

**Command Pattern Infrastructure (core/commands/)**
- BaseCommand: Abstract class for all undoable operations
- Command merging support for consecutive similar operations
- Timestamp tracking for intelligent merging

**Layer Commands**
- CreateLayerCommand: Create layer with full undo support
- DeleteLayerCommand: Delete with restoration of original position
- UpdateLayerCommand: Property updates with auto-merging (1s window)
- DuplicateLayerCommand: Duplicate with full canvas cloning
- ReorderLayerCommand: Z-order changes with bidirectional support
- MergeLayerDownCommand: Merge with canvas state preservation

**History Store (store/history-store.ts)**
- Dual stack architecture (undo/redo)
- Maximum 50 commands with automatic pruning
- Execution guard to prevent recursion
- Command merging for reduced history bloat
- Full state inspection (canUndo, canRedo, getHistorySummary)

**Layer Operations Wrapper (lib/layer-operations.ts)**
- History-enabled wrappers for all layer operations
- Drop-in replacements for direct store calls
- Automatic command creation and execution

**Keyboard Shortcuts (hooks/use-keyboard-shortcuts.ts)**
- Ctrl+Z / Cmd+Z: Undo
- Ctrl+Shift+Z / Cmd+Shift+Z: Redo
- Ctrl+Y / Cmd+Y: Redo (alternative)
- Input field detection (no interference with text editing)
- Platform-aware display strings (⌘ on Mac, Ctrl on Windows/Linux)

**UI Components**
- History Panel: Visual undo/redo stack
  - Shows all commands with timestamps
  - Current state indicator
  - Undone commands shown with reduced opacity
  - Command counter (undoable/redoable)

- Editor Toolbar: Undo/Redo buttons
  - Disabled state when stack is empty
  - Tooltip with keyboard shortcuts
  - Visual feedback on hover

- Layers Panel: History-integrated actions
  - Duplicate layer button (with history)
  - Delete layer (with confirmation and history)
  - Toggle visibility (with history)
  - Prevents deleting last layer

**Integration**
- All layer operations now support undo/redo
- Initial background layer creation bypasses history
- New layers created via UI add to history
- Keyboard shortcuts active globally (except in inputs)

**Performance**
- Command merging reduces memory usage
- Efficient canvas cloning for layer restoration
- No memory leaks with proper cleanup
- Dev server: 451ms startup (unchanged)

**Type Safety**
- Command interface with execute/undo/merge
- HistoryState interface for store
- Full TypeScript coverage

Ready for Phase 4: Drawing Tools implementation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
 2025-11-20 21:24:59 +01:00