128 lines
4.5 KiB
C#
128 lines
4.5 KiB
C#
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/*
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* ImportInkMenuItem.cs
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* "导入墨迹" 菜单项
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* 所属项目：Better-Seewo
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* 作者：雾启工作室
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*
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* 说明：
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* 实现白板编辑菜单中的"导入墨迹"功能。
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* 点击后打开文件选择对话框，选择 .ink.json 文件导入到当前白板。
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* 默认文件名为"课件墨迹.ink.json"。
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*/
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using System;
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using System.IO;
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using System.Threading.Tasks;
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using System.Windows;
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using dotnetCampus.EasiPlugin;
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using Newtonsoft.Json;
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namespace Better_Seewo.Better_EN5.UI
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{
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/// <summary>
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/// 导入墨迹菜单项
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/// 实现 IMenuPluginItem 接口，在白板编辑菜单中显示"导入墨迹"按钮
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/// 点击后打开文件选择对话框，读取 JSON 文件并将墨迹数据应用到白板
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/// </summary>
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public class ImportInkMenuItem : IMenuPluginItem
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{
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/// <summary>
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/// 菜单项唯一标识符
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/// </summary>
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public Guid Id { get; } = new Guid("B2C3D4E5-F6A7-8901-BCDE-F12345678901");
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/// <summary>
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/// 菜单项显示标题
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/// 根据当前语言环境显示"导入墨迹"或"Import Ink"
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/// </summary>
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public string Title { get; }
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/// <summary>
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/// 菜单项排序提示值
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/// 值越大越靠前，997 表示在菜单中位于"导出墨迹"之后
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/// </summary>
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public int SortHint { get; } = 997;
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/// <summary>
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/// 语言资源源，用于获取多语言文本
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/// </summary>
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private readonly DictionaryLanguageSource _languageSource;
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/// <summary>
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/// 构造函数
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/// </summary>
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/// <param name="languageSource">中英文双语资源字典</param>
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public ImportInkMenuItem(DictionaryLanguageSource languageSource)
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{
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_languageSource = languageSource;
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// 从语言资源中获取菜单项标题，默认中文
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Title = _languageSource.GetString("ImportInk.Title") ?? "导入墨迹";
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}
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/// <summary>
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/// 获取菜单项图标
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/// 返回菜单项在工具栏中显示的图标资源路径
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/// </summary>
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/// <returns>图标资源路径字符串</returns>
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public string GetMenuIcon()
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{
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// 返回导入图标路径
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return "pack://application:,,,/Better-EN5;component/Resources/import_icon.png";
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}
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/// <summary>
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/// 菜单项点击事件处理
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/// 打开文件选择对话框，读取 .ink.json 文件并将墨迹数据导入到当前白板
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/// </summary>
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public async Task OnClickAsync()
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{
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await Task.Run(() =>
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{
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// 创建文件选择对话框
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var openFileDialog = new Microsoft.Win32.OpenFileDialog
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{
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// 默认文件名
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FileName = "课件墨迹.ink.json",
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// 文件过滤器
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Filter = "墨迹 JSON 文件 (*.ink.json)|*.ink.json|所有文件 (*.*)|*.*",
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// 默认扩展名
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DefaultExt = ".ink.json",
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// 对话框标题
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Title = "导入墨迹",
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};
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// 显示打开对话框
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if (openFileDialog.ShowDialog() == true)
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{
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try
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{
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// 读取 JSON 文件内容
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string json = File.ReadAllText(openFileDialog.FileName);
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// 使用 Newtonsoft.Json 反序列化墨迹数据
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var inkData = JsonConvert.DeserializeObject<InkStrokeCollection>(json);
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if (inkData == null)
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{
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MessageBox.Show("无法解析所选文件的墨迹数据。", "导入失败",
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MessageBoxButton.OK, MessageBoxImage.Warning);
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return;
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}
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// 将墨迹数据应用到白板
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InkDataHelper.ImportInkData(inkData);
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}
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catch (Exception ex)
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{
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// 捕获并提示导入过程中的异常
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MessageBox.Show($"导入墨迹时发生错误：\n{ex.Message}", "导入失败",
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MessageBoxButton.OK, MessageBoxImage.Error);
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}
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}
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});
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}
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}
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}
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