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feat: wire up drawing interaction for line and rectangle tools (tasks 3.1-3.5)

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- Add drawing state and preview primitive refs
- Implement two-click drawing flow via subscribeClick
- Add crosshair move handler to update preview in real-time
- Add Escape key handler to cancel drawing
- Manage TrendLine primitives for saved line annotations
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Marko Djordjevic 2026-02-16 11:55:06 +01:00
parent bec0aeb6ca
commit 82fd5ce819
2 changed files with 228 additions and 7 deletions
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openspec/changes/line-rectangle-annotations/tasks.md
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@ -17,11 +17,11 @@
## 3. Wire Up Drawing Interaction in CandleChart
- [ ] 3.1 Add state for drawing mode: `drawingState: {tool: 'line'|'rectangle', firstPoint: {time, price}} | null` and `previewPrimitive: TrendLine | RectangleDrawingPrimitive | null`
- [ ] 3.2 Subscribe to `chart.subscribeClick()` — on first click when line/rectangle tool active, record first point and attach preview primitive; on second click, save annotation via API, detach preview, attach permanent primitive
- [ ] 3.3 Subscribe to `chart.subscribeCrosshairMove()` — when drawing in progress, update preview primitive's endpoint via `updatePoints()` or equivalent
- [ ] 3.4 Handle Escape key — detach preview primitive and clear drawing state
- [ ] 3.5 Manage TrendLine primitives for saved line annotations — create/attach on load, detach on delete, update on edit
- [x] 3.1 Add state for drawing mode: `drawingState: {tool: 'line'|'rectangle', firstPoint: {time, price}} | null` and `previewPrimitive: TrendLine | RectangleDrawingPrimitive | null`
- [x] 3.2 Subscribe to `chart.subscribeClick()` — on first click when line/rectangle tool active, record first point and attach preview primitive; on second click, save annotation via API, detach preview, attach permanent primitive
- [x] 3.3 Subscribe to `chart.subscribeCrosshairMove()` — when drawing in progress, update preview primitive's endpoint via `updatePoints()` or equivalent
- [x] 3.4 Handle Escape key — detach preview primitive and clear drawing state
- [x] 3.5 Manage TrendLine primitives for saved line annotations — create/attach on load, detach on delete, update on edit
## 4. Wire Up Rectangle Primitives in CandleChart