将Feature/XP.Common和Feature/XP.Hardware分支合并至Develop/XP.forHardwareAndCommon，完善XPapp注册和相关硬件类库通用类库功能。
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QI Mingxuan
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using System;
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using System.Threading.Tasks;
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using Prism.Commands;
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using Prism.Mvvm;
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using XP.Hardware.PLC.Models;
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namespace XP.Hardware.PLC.Sentry.ViewModels
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{
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/// <summary>
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/// 单行信号 ViewModel，封装 SignalEntry 并添加运行时状态 | Single signal row ViewModel wrapping SignalEntry with runtime state
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/// </summary>
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public class SignalRowViewModel : BindableBase
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{
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private readonly SignalEntry _signal;
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private string _currentValue = "--";
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private bool _hasReadError;
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private object _writeValue;
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private string _validationError;
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/// <summary>
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/// 构造函数 | Constructor
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/// </summary>
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/// <param name="signal">信号定义条目 | Signal definition entry</param>
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/// <param name="applyAction">队列写入回调 | Queue write callback</param>
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/// <param name="directWriteAction">直接写入回调 | Direct write callback</param>
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/// <param name="canExecuteWrite">写入命令是否可用判断 | Write command can-execute predicate</param>
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public SignalRowViewModel(
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SignalEntry signal,
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Action<SignalRowViewModel> applyAction,
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Action<SignalRowViewModel> directWriteAction,
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Func<bool> canExecuteWrite)
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{
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_signal = signal ?? throw new ArgumentNullException(nameof(signal));
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ApplyCommand = new DelegateCommand(
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() => applyAction?.Invoke(this),
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() => canExecuteWrite?.Invoke() ?? false);
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DirectWriteCommand = new DelegateCommand(
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() => directWriteAction?.Invoke(this),
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() => canExecuteWrite?.Invoke() ?? false);
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}
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// === 信号定义信息（只读）| Signal definition info (read-only) ===
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/// <summary>
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/// 信号名称 | Signal name
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/// </summary>
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public string Name => _signal.Name;
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/// <summary>
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/// 数据类型 | Data type
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/// </summary>
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public string Type => _signal.Type;
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/// <summary>
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/// 起始地址 | Start address
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/// </summary>
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public int StartAddr => _signal.StartAddr;
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/// <summary>
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/// 长度/索引 | Length/Index
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/// </summary>
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public string IndexOrLength => _signal.IndexOrLength;
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/// <summary>
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/// 备注 | Remark
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/// </summary>
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public string Remark => _signal.Remark;
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/// <summary>
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/// DB 块号 | DB block number
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/// </summary>
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public int DBNumber => _signal.DBNumber;
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/// <summary>
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/// 原始信号定义条目 | Original signal definition entry
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/// </summary>
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public SignalEntry Signal => _signal;
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/// <summary>
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/// 格式化的地址显示 | Formatted address display
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/// bool 类型显示位地址（DB{n}.{addr}.{bit}），其他类型显示字节地址（DB{n}.{addr}）
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/// </summary>
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public string AddressDisplay => Type?.ToLowerInvariant() == "bool"
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? $"DB{DBNumber}.{StartAddr}.{IndexOrLength}"
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: $"DB{DBNumber}.{StartAddr}";
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// === 运行时状态 | Runtime state ===
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/// <summary>
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/// 当前读取值 | Current read value
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/// </summary>
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public string CurrentValue
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{
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get => _currentValue;
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set => SetProperty(ref _currentValue, value ?? "--");
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}
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/// <summary>
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/// 是否存在读取错误 | Whether read error exists
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/// </summary>
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public bool HasReadError
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{
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get => _hasReadError;
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set => SetProperty(ref _hasReadError, value);
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}
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/// <summary>
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/// 写入值 | Write value
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/// </summary>
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public object WriteValue
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{
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get => _writeValue;
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set
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{
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if (SetProperty(ref _writeValue, value))
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{
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// 写入值变更时清除校验错误 | Clear validation error when write value changes
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ValidationError = null;
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}
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}
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}
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/// <summary>
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/// 校验错误信息 | Validation error message
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/// </summary>
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public string ValidationError
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{
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get => _validationError;
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set => SetProperty(ref _validationError, value);
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}
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// === 命令 | Commands ===
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/// <summary>
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/// 队列写入命令 | Queue write command
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/// </summary>
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public DelegateCommand ApplyCommand { get; }
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/// <summary>
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/// 直接写入+回读校验命令 | Direct write with verify command
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/// </summary>
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public DelegateCommand DirectWriteCommand { get; }
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/// <summary>
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/// 刷新写入命令可用状态 | Refresh write command can-execute state
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/// </summary>
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public void RefreshCommandState()
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{
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ApplyCommand.RaiseCanExecuteChanged();
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DirectWriteCommand.RaiseCanExecuteChanged();
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}
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/// <summary>
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/// 校验写入值是否符合信号数据类型要求 | Validate write value against signal data type
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/// </summary>
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/// <returns>校验错误信息，null 表示通过 | Validation error message, null means passed</returns>
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public string ValidateWriteValue()
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{
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if (WriteValue == null)
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return "写入值不能为空 | Write value cannot be empty";
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var strValue = WriteValue.ToString();
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if (string.IsNullOrWhiteSpace(strValue))
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return "写入值不能为空 | Write value cannot be empty";
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switch (Type?.ToLowerInvariant())
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{
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case "bool":
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if (!bool.TryParse(strValue, out _))
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return "布尔值仅接受 True/False | Bool accepts only True/False";
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break;
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case "byte":
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if (!byte.TryParse(strValue, out _))
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return "字节值超出范围 (0-255) | Byte value out of range (0-255)";
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break;
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case "short":
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if (!short.TryParse(strValue, out _))
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return "短整型值超出范围 | Short value out of range";
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break;
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case "int":
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if (!int.TryParse(strValue, out _))
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return "整型值超出范围 | Int value out of range";
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break;
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case "single":
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if (!float.TryParse(strValue, out _))
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return "浮点数格式错误 | Float format error";
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break;
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case "double":
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if (!double.TryParse(strValue, out _))
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return "双精度浮点数格式错误 | Double format error";
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break;
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case "string":
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// 字符串接受任意非空值 | String accepts any non-empty value
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break;
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default:
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return $"不支持的类型: {Type} | Unsupported type: {Type}";
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}
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return null;
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}
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}
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}
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