53 lines
2.0 KiB
Markdown
53 lines
2.0 KiB
Markdown
|
---
|
|||
|
|
id: ref-methods
|
|||
|
|
title: "Ref 方法"
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
# 🔧 Ref 方法
|
|||
|
|
|
|||
|
|
通过 `ref` 访问（类型 `MaskSegmentCanvasRef`）：
|
|||
|
|
|
|||
|
|
| 方法 | 签名 | 描述 |
|
|||
|
|
| --- | --- | --- |
|
|||
|
|
| `reset` | `() => void` | 撤销上一步上色操作（按 `paintHistory`） |
|
|||
|
|
| `swap` | `(showOrigin?: boolean) => void` | 切换原始图像对比；省略参数则切换，`true`/`false` 强制设置 |
|
|||
|
|
| `save` | `(options?) => Promise<SavePaintResult>` | 合成并保存 PNG；`options.destDir` 可选输出目录 |
|
|||
|
|
| `session` | `() => MaskSegmentSession` | 导出 JSON 可序列化会话（用于 MMKV 存储） |
|
|||
|
|
| `loadSession` | `(session) => void` | 恢复上色状态（也可通过 `initialSession` 使用） |
|
|||
|
|
| `setPaintColor` | `(color, configJson?) => void` | 设置当前画笔颜色；清除底部颜色条选中状态 |
|
|||
|
|
| `setMaskConfig` | `(config) => void` | 运行时更新遮罩配置并 **重新分割** |
|
|||
|
|
| `clearAllPaint` | `() => void` | 清除所有上色记录 |
|
|||
|
|
| `resegment` | `() => Promise<void>` | 清除 PNG 缓存并重新分割 |
|
|||
|
|
| `getRegions` | `() => SegmentRegion[]` | 当前区域列表快照 |
|
|||
|
|
| `getPaintedRegions` | `() => PaintedRegionRecord[]` | 当前上色记录快照 |
|
|||
|
|
|
|||
|
|
## SavePaintResult
|
|||
|
|
|
|||
|
|
`{ filePath, width, height, paintedCount, previewPath? }`
|
|||
|
|
|
|||
|
|
## 代码示例
|
|||
|
|
|
|||
|
|
```tsx
|
|||
|
|
const ref = useRef<MaskSegmentCanvasRef>(null);
|
|||
|
|
|
|||
|
|
ref.current?.reset();
|
|||
|
|
ref.current?.swap(); // 切换
|
|||
|
|
ref.current?.swap(true); // 强制显示原始图像
|
|||
|
|
|
|||
|
|
const result = await ref.current?.save({ destDir: '/path/to/dir' });
|
|||
|
|
|
|||
|
|
const session = ref.current?.session();
|
|||
|
|
ref.current?.loadSession(session);
|
|||
|
|
|
|||
|
|
ref.current?.setPaintColor({ b: 100, g: 120, r: 140 }, { sku: 'paint-001' });
|
|||
|
|
ref.current?.setMaskConfig({ semanticColors: customColors });
|
|||
|
|
|
|||
|
|
ref.current?.clearAllPaint();
|
|||
|
|
await ref.current?.resegment();
|
|||
|
|
|
|||
|
|
const regions = ref.current?.getRegions();
|
|||
|
|
const painted = ref.current?.getPaintedRegions();
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
> `save` 依赖于工作缓冲区和 pickMap 就绪（通常在 `interactive` 之后）；如果未就绪则抛出 `'Image not ready, cannot save'`。
|