Kyle Isom
2fc4224f5a
- PadCanvasView: custom View with stylus event handling (historical points for smoothness), Path/Paint stroke rendering, backing bitmap at 1/4 resolution, 60pt grid drawing, Matrix coordinate transform - CanvasState: tool modes (fine/medium pen, eraser, select), zoom/pan state - EditorViewModel: loads/saves strokes to Room on completion - EditorScreen: Compose wrapper with AndroidView + FilterChip toolbar - NavGraph: pages route auto-navigates to first page editor, page size passed through route params Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
121 lines
4.9 KiB
Markdown
121 lines
4.9 KiB
Markdown
# PROJECT_PLAN.md — eng-pad Implementation Steps
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This file tracks all implementation steps. Check off steps as they are
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completed and log them in PROGRESS.md.
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## Phase 0: Project Documents
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- [x] 0.1: Create DESIGN.md
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- [x] 0.2: Create PROJECT_PLAN.md (this file)
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- [x] 0.3: Create PROGRESS.md
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- [x] 0.4: Update CLAUDE.md with build commands and source tree
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## Phase 1: Project Skeleton + Data Layer
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- [x] 1.1: Generate Android project with Gradle
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- `build.gradle.kts` (root), `app/build.gradle.kts`, `settings.gradle.kts`
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- Kotlin, Compose, Room KSP, minSdk 30, compileSdk/targetSdk 36
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- [x] 1.2: Configure `gradle/libs.versions.toml` version catalog
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- Compose BOM, Room, Navigation, Lifecycle, Coroutines
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- [x] 1.3: Configure linting (`app/build.gradle.kts` Android Lint config)
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- [x] 1.4: Define Room entities
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- `data/model/Notebook.kt`, `Page.kt`, `Stroke.kt`, `PageSize.kt`
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- [x] 1.5: Implement type converters
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- `data/db/Converters.kt` — `FloatArray` ↔ `ByteArray`
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- [x] 1.6: Define DAOs
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- `data/db/NotebookDao.kt`, `PageDao.kt`, `StrokeDao.kt`
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- [x] 1.7: Define Room database
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- `data/db/EngPadDatabase.kt`
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- [x] 1.8: Implement repositories
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- `data/repository/NotebookRepository.kt`, `PageRepository.kt`
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- [x] 1.9: Unit tests
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- `test/.../data/StrokeBlobTest.kt` — blob roundtrip
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- `test/.../data/PageSizeTest.kt` — page size enum
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- **Verify:** `./gradlew build` — PASSED (build + test + lint)
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## Phase 2: Notebook List Screen
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- [x] 2.1: Set up `MainActivity` with Compose and `NavHost`
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- `MainActivity.kt`, `ui/navigation/NavGraph.kt`, `ui/theme/Theme.kt`
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- [x] 2.2: Implement `NotebookListViewModel`
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- `ui/notebooks/NotebookListViewModel.kt`
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- [x] 2.3: Implement `NotebookListScreen`
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- `ui/notebooks/NotebookListScreen.kt` — list, create dialog, delete confirmation
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- [x] 2.4: Auto-create page 1 on notebook creation
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- In `NotebookRepository.create()`
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- [x] 2.5: Navigation: tap notebook → page list (stub screen)
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- **Verify:** `./gradlew build` — PASSED (build + test + lint)
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## Phase 3: Canvas — Basic Drawing
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- [x] 3.1: Implement `PadCanvasView` — stylus event handling
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- `ui/editor/PadCanvasView.kt` — `onTouchEvent`, `getHistoricalX/Y`
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- [x] 3.2: Stroke rendering — `Path`/`Paint`, backing bitmap (1/4 resolution)
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- [x] 3.3: Grid drawing — 60pt spacing, drawn on screen only
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- [x] 3.4: Coordinate transform — canonical ↔ screen via `Matrix`
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- [x] 3.5: Implement `CanvasState`
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- `ui/editor/CanvasState.kt` — zoom, pan, active tool, pen widths
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- [x] 3.6: Implement `EditorViewModel`
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- `ui/editor/EditorViewModel.kt` — load/save strokes from Room
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- [x] 3.7: Implement `EditorScreen` + toolbar
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- `ui/editor/EditorScreen.kt`, `ui/editor/Toolbar.kt`
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- [x] 3.8: Wire navigation — notebook list → pages → editor (pages auto-navigates to first page)
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- **Verify:** `./gradlew build` — PASSED (build + test + lint). Manual on-device test pending.
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## Phase 4: Zoom and Pan
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- [ ] 4.1: `ScaleGestureDetector` for pinch-to-zoom (0.5×–4×)
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- [ ] 4.2: Finger drag for pan with bounds clamping
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- [ ] 4.3: Input routing — stylus → draw, finger → zoom/pan
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- **Verify:** manual on-device test
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## Phase 5: Eraser
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- [ ] 5.1: Eraser mode in `CanvasState`
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- [ ] 5.2: Hit testing — bounding box pre-filter + point distance
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- [ ] 5.3: Stroke deletion + backing bitmap rebuild
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- **Verify:** `./gradlew test` + manual test
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## Phase 6: Undo/Redo
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- [ ] 6.1: `UndoableAction` interface + concrete actions
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- `undo/UndoableAction.kt`
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- [ ] 6.2: `UndoManager` — undo/redo stacks, depth 50
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- `undo/UndoManager.kt`
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- [ ] 6.3: Integrate with `EditorViewModel` + toolbar
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- [ ] 6.4: Unit tests — `test/.../undo/UndoManagerTest.kt`
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- **Verify:** `./gradlew test` + manual test
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## Phase 7: Selection — Move, Copy, Delete
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- [ ] 7.1: Selection mode — rectangle selection
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- [ ] 7.2: Visual feedback — highlight, bounding box
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- [ ] 7.3: Operations — delete, drag-to-move, copy/paste
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- [ ] 7.4: Undo integration for all selection operations
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- **Verify:** `./gradlew test` + manual test
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## Phase 8: Multi-Page Navigation
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- [ ] 8.1: `PageListScreen` with thumbnails
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- `ui/pages/PageListScreen.kt`, `PageListViewModel.kt`
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- [ ] 8.2: Add new page button
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- [ ] 8.3: Prev/next page navigation in editor + auto-save
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- **Verify:** manual test
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## Phase 9: PDF Export
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- [ ] 9.1: `PdfExporter` — Android `PdfDocument` API
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- `ui/export/PdfExporter.kt`
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- [ ] 9.2: Share via `Intent.ACTION_SEND` + `FileProvider`
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- `res/xml/file_provider_paths.xml`, `AndroidManifest.xml` updates
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- [ ] 9.3: Export button in toolbar (per-page + whole notebook)
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- [ ] 9.4: Unit test — verify PDF generation
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- **Verify:** `./gradlew test` + open exported PDF, confirm no grid
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## Phase 10: Polish
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- [ ] 10.1: E-ink optimizations — minimize animations, high contrast
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- [ ] 10.2: Auto-save zoom/pan state per page
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- [ ] 10.3: Empty states, error handling, delete confirmations
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- [ ] 10.4: Performance profiling on target devices
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