WIP components (as built)
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# 184 Watchlist
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## 用途
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自选列表。
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## 最小示例
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```go
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var state mujica.WatchlistState
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groups := []mujica.WatchGroup{{Name: "Technology", Items: []mujica.WatchItem{{Symbol: "AAPL", Name: "Apple", Price: 227.5, Change: 2.7, ChangePercent: 1.2}}}, {Name: "Energy", Items: []mujica.WatchItem{{Symbol: "XOM", Price: 117.4}}}}
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view := func(c *ui.Context) {
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mujica.Use(c, mujica.Settings{})
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r := mujica.Watchlist(c, &state, groups, mujica.WatchlistOptions{})
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if r.Changed || r.Submitted || r.Moved {
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fmt.Println(state.Selected, r.Rows, r.To)
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}
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}
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ui.Render(view, 960, 440, 1)
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```
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## 参数
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`s` 保存分组、代码和隐藏列;`groups` 至少一个;`Decimals` 默认 2;`Disabled` 默认 false。
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## 状态
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默认;交互区域支持聚焦与选中,Disabled 参数控制禁用。
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## 事件
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if r.Changed || r.Submitted || r.Moved { 调用方回调(state.Selected, r.Rows, r.To) }
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## 键盘操作
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Tab 切换分组或列菜单;上下、Home/End 选择;Enter 确认;菜单 Space 开关列。
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## 限制
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拖动仅返回 Moved;调用方应用 Rows/To 调整顺序;刷新采用稳定 Symbol。
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