jared
1049057d7d
- Add project constitution with vision, principles, and autonomy settings - Add 15 feature specifications covering full app scope - Configure agent entry points (AGENTS.md, CLAUDE.md) - Add build prompt and speckit command for spec creation - Include comprehensive .gitignore for iOS development Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
33 lines
1.3 KiB
Markdown
33 lines
1.3 KiB
Markdown
# Brush Tool
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## Description
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Manual brush selection for fallback when automatic detection fails.
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## Acceptance Criteria
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- [ ] Brush tool available in toolbar
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- [ ] Brush size adjustable: 1-100px via slider
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- [ ] Brush size also adjustable via stepper (accessibility)
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- [ ] Touch draws on mask layer in real-time
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- [ ] Smooth stroke rendering (interpolate between touch points)
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- [ ] Brush preview circle follows finger
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- [ ] Erase mode toggle to remove from mask
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- [ ] Clear mask button to start over
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- [ ] Edge refinement optional: snap brush strokes to nearby edges
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- [ ] Mask preview shown in real-time as user paints
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- [ ] When done painting, user taps "Done" to proceed to inpaint
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- [ ] Pinch-to-zoom still works while brush active
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- [ ] Brush works with Apple Pencil (pressure sensitivity optional)
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- [ ] Performance: 60fps stroke rendering
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## Technical Notes
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- Use Core Graphics or Metal for stroke rendering
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- Interpolate touch points with quadratic curves for smoothness
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- Edge refinement uses gradient magnitude from `EdgeRefinement.swift`
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- Consider separate gesture recognizer for drawing vs zoom/pan
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## Edge Cases
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- Very fast strokes: ensure no gaps between points
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- Stroke at image edge: clamp to image bounds
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- Accidental touch: undo single stroke or clear all
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- Zoom while drawing: complete current stroke, then zoom
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