add:浮动栏自定义
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using System.Collections.Generic;
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using System.Windows;
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namespace Ink_Canvas.Controls.Toolbar
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{
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/// <summary>
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/// MainWindow 版的 IToolbarHost 实现。Phase 1 直接把 MainWindow 引用暴露给插件,
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/// 插件可通过 host.Window 访问私有/内部成员(partial class 扩展或 internal 字段)。
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/// 后续阶段逐步把具体行为抽成 Host 上的方法/事件,收窄这个接口。
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/// </summary>
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public sealed class ToolbarHost : IToolbarHost
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{
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private readonly Dictionary<string, FrameworkElement> _views = new Dictionary<string, FrameworkElement>();
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public ToolbarHost(MainWindow window)
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{
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Window = window;
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}
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public MainWindow Window { get; }
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public void RegisterView(string id, FrameworkElement view)
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{
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if (string.IsNullOrEmpty(id) || view == null) return;
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_views[id] = view;
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}
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public FrameworkElement FindView(string id)
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{
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if (string.IsNullOrEmpty(id)) return null;
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return _views.TryGetValue(id, out var v) ? v : null;
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}
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}
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}
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