文件模板、CPU、内存用量 (8697c08a) · Commits · shRabbit / WatermarkClock · GitLab

src/WatermarkClock/MainWindow.xaml.cs

+1 −1

Original line number	Diff line number	Diff line
		@@ -27,7 +27,7 @@ namespace WatermarkClock
		_ctx = new Context();
		_engine = new TextTemplateEngine
		{
		Templates = { new BaseTime(), new BaseFunc(), new HwInfo() }
		Templates = { new BaseTime(), new BaseFunc(), new HwInfo(), new FileReader() }
		};
		InitComboBox();

src/WatermarkClock/Templates/FileReader.cs

0 → 100644

+80 −0

Original line number	Diff line number	Diff line
		using System;
		using System.Collections.Generic;
		using System.IO;
		using System.Linq;
		using System.Text.RegularExpressions;

		namespace WatermarkClock.Templates
		{
		public class FileReader : ITextTemplate
		{
		private readonly char _flag = '*';

		// 匹配 {*...} 整体内容
		private readonly Regex _pattern = new Regex(@"\{\*([^}]+)\}", RegexOptions.Compiled);

		public string Replace(string input)
		{
		if (string.IsNullOrEmpty(input))
		return input;

		try
		{
		return _pattern.Replace(input, match =>
		{
		var content = match.Groups[1].Value;
		var (filePath, lineNumber) = ParsePathAndLine(content);
		return ReadFileLine(filePath, lineNumber);
		});
		}
		catch
		{
		return input;
		}
		}

		private (string path, int line) ParsePathAndLine(string content)
		{
		// 从末尾查找 :数字作为行号
		var colonIndex = content.LastIndexOf(':');

		// 检查冒号后面是否全是数字
		if (colonIndex > 0 && colonIndex < content.Length - 1)
		{
		var afterColon = content.Substring(colonIndex + 1);
		if (int.TryParse(afterColon, out var lineNum))
		{
		var path = content.Substring(0, colonIndex);
		return (path, lineNum);
		}
		}

		// 没有行号，默认第1行
		return (content, 1);
		}

		private string ReadFileLine(string filePath, int lineNumber)
		{
		try
		{
		if (!File.Exists(filePath))
		return $"[文件不存在:{filePath}]";

		var lines = File.ReadLines(filePath);
		var line = lines.Skip(lineNumber - 1).FirstOrDefault();

		return line ?? $"[行{lineNumber}超出范围]";
		}
		catch (Exception ex)
		{
		return $"[读取错误:{ex.Message}]";
		}
		}

		public IEnumerable<TemplateVariable> GetVariables()
		{
		yield return new TemplateVariable($"{{{_flag}文件路径}}", "读取文件第一行");
		yield return new TemplateVariable($"{{{_flag}文件路径:行数}}", "读取文件指定行（从1开始）");
		}
		}
		}
		No newline at end of file

src/WatermarkClock/Templates/HwInfo.cs

+92 −21

Original line number	Diff line number	Diff line
		@@ -7,42 +7,113 @@ namespace WatermarkClock.Templates
		public class HwInfo : ITextTemplate
		{
		private PerformanceCounter _systemCpuCounter;
		private bool _run;
		private PerformanceCounter _memAvailableCounter;
		private DateTime _lastGet;
		private float _lastValue;
		private float _lastCpuValue;
		private float _lastMemAvailable;
		private long _totalPhysicalMemory;

		public string Replace(string input)
		public HwInfo()
		{
		// 获取物理内存总量（只获取一次）
		try
		{
		using (var searcher = new System.Management.ManagementObjectSearcher("SELECT TotalPhysicalMemory FROM Win32_ComputerSystem"))
		{
		foreach (var obj in searcher.Get())
		{
		_totalPhysicalMemory = Convert.ToInt64(obj["TotalPhysicalMemory"]);
		break;
		}
		}
		}
		catch
		{
		// 如果 WMI 失败，使用 PerformanceCounter 的方式估算
		try
		{
		var commitLimit = new PerformanceCounter("Memory", "Commit Limit");
		_totalPhysicalMemory = (long)commitLimit.NextValue();
		}
		catch
		{
		return input.Replace("{cpu}", GetCpuUsage());
		_totalPhysicalMemory = 8L * 1024 * 1024 * 1024; // 默认 8GB
		}
		}
		}

		private string GetCpuUsage()
		public string Replace(string input)
		{
		if ((DateTime.Now - _lastGet).TotalSeconds > 1)
		{
		PerformanceCounter counter;
		UpdateValues();
		}

		var memUsed = _totalPhysicalMemory - (long)_lastMemAvailable * 1024 * 1024;
		var memFree = (long)_lastMemAvailable * 1024 * 1024;
		var memPercent = (float)memUsed / _totalPhysicalMemory * 100;

		return input
		.Replace("{cpu}", _lastCpuValue.ToString("F1"))
		.Replace("{mem}", memPercent.ToString("F1"))
		.Replace("{mem_used}", FormatBytes(memUsed))
		.Replace("{mem_free}", FormatBytes(memFree))
		.Replace("{mem_total}", FormatBytes(_totalPhysicalMemory));
		}

		private void UpdateValues()
		{
		// CPU
		try
		{
		counter = _systemCpuCounter = _systemCpuCounter ??
		_systemCpuCounter = _systemCpuCounter ??
		new PerformanceCounter("Processor Information", "% Processor Utility", "_Total");
		_lastCpuValue = _systemCpuCounter.NextValue();
		}
		catch (Exception e)
		catch
		{
		counter = _systemCpuCounter = _systemCpuCounter ??
		_systemCpuCounter = _systemCpuCounter ??
		new PerformanceCounter("Processor", "% Processor Time", "_Total");
		_lastCpuValue = _systemCpuCounter.NextValue();
		}

		// 可用内存（MB）
		try
		{
		_memAvailableCounter = _memAvailableCounter ??
		new PerformanceCounter("Memory", "Available MBytes");
		_lastMemAvailable = _memAvailableCounter.NextValue();
		}
		catch
		{
		_lastMemAvailable = 0;
		}

		_lastGet = DateTime.Now;
		return (_lastValue = counter.NextValue()).ToString("F1");
		}

		return _lastValue.ToString("F1");
		private string FormatBytes(long bytes)
		{
		string[] units = { "B", "KB", "MB", "GB", "TB" };
		int unitIndex = 0;
		double value = bytes;

		while (value >= 1024 && unitIndex < units.Length - 1)
		{
		value /= 1024;
		unitIndex++;
		}

		return $"{value:F1}{units[unitIndex]}";
		}

		public IEnumerable<TemplateVariable> GetVariables()
		{
		yield return new TemplateVariable("{cpu}", "中央处理器使用率");
		yield return new TemplateVariable("{cpu}", "中央处理器使用率 (%)");
		yield return new TemplateVariable("{mem}", "内存使用率 (%)");
		yield return new TemplateVariable("{mem_used}", "内存已用空间 (自动单位)");
		yield return new TemplateVariable("{mem_free}", "内存剩余空间 (自动单位)");
		yield return new TemplateVariable("{mem_total}", "内存总量 (自动单位)");
		}
		}
		}
		No newline at end of file

src/WatermarkClock/WatermarkClock.csproj

+2 −0

Original line number	Diff line number	Diff line
		@@ -63,6 +63,7 @@
		<Reference Include="System.Core"/>
		<Reference Include="System.Data"/>
		<Reference Include="System.Drawing"/>
		<Reference Include="System.Management"/>
		<Reference Include="System.Windows.Forms"/>
		<Reference Include="System.Xml"/>
		<Reference Include="System.Xaml">
		@@ -85,6 +86,7 @@
		<Compile Include="MarkPosition.cs" />
		<Compile Include="NotifyIconWrapper.cs" />
		<Compile Include="TemplateItem.cs" />
		<Compile Include="Templates\FileReader.cs" />
		<Compile Include="Templates\HwInfo.cs" />
		<Compile Include="TemplateVariable.cs" />
		<Compile Include="Templates\BaseFunc.cs" />

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