# Maltose.Net

**Repository Path**: misslius/Maltose.Net

## Basic Information

- **Project Name**: Maltose.Net
- **Description**: 记录自己的实用库
这是 .NET CORE 3.1版本
- **Primary Language**: C#
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 3
- **Forks**: 1
- **Created**: 2020-03-13
- **Last Updated**: 2022-09-29

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Maltose.Net

#### 介绍
记录自己用的工具库

最低版本是 .NET CORE 3.1 以后会同步跟着 .NET CORE升级 .NETX

建议使用 VS 2019 

#### Maltose.Data 
默认使用 MSSQL数据库 希望你的版本是 2012 以及 以上

现在你可以更方便的连接数据库

如果你需要使用它，请在项目根目录下新建一个 app.config.json 配置文件

它默认读取 DbConnectionStrings:{枚举} 下面的任何一条配置文件 看起来像这样

```
{
  "DbConnectionStrings": {
    "Default"："写上你的数据库连接字符串"
  }
}
```

	#region 创建模板活码


		/// <summary>
		/// 自定义字体
		/// </summary>
		static SKTypeface Font;

		/// <summary>
		/// 保存DIY活码
		/// </summary>
		/// <param name="dir"></param>
		/// <param name="fileName">保存文件</param>
		/// <param name="bgPath">背景地址</param>
		/// <param name="qrPath">二维码地址</param>
		/// <param name="logoPath">图形地址</param>
		/// <param name="title">标题</param>
		/// <param name="text">子标题</param>
		string CreateDiyImage(string dir, string fileName, string bgPath, string qrPath, string logoPath, string title, string text)
		{

			if (Font == null)
			{
				var fontPath = $"{App.WebHostEnvironment.WebRootPath}/Captcha/Font/AlibabaPuHuiTi-2-45-Light.ttf";
				using (FileStream fs = File.OpenRead(fontPath))
				{
					Font = SKTypeface.FromStream(fs);
				}
			}

			//获取背景
			var bgMap = SKBitmap.Decode(bgPath);
			var bgImageSize = new SKSizeI(1368, 900);
			var bgImage = bgMap.Resize(bgImageSize, SKFilterQuality.High);

			var mapInfo = new SKImageInfo(1368, 2048);
			var map = SKBitmap.FromImage(SKImage.Create(mapInfo));
			using var canvas = new SKCanvas(map);
			canvas.DrawColor(SKColors.White);
			canvas.DrawBitmap(bgImage, 0, 0);


			//获取二维码
			var qrMap = SKBitmap.Decode(qrPath);
			var qrSize = new SKSizeI(qrMap.Width * 2, qrMap.Height * 2);
			var qrImage = qrMap.Resize(qrSize, SKFilterQuality.High);
			var qrX = (map.Width - qrImage.Width) / 2;
			var qrY = (map.Height - bgImage.Height - qrImage.Height) / 2 + bgImage.Height;
			canvas.DrawBitmap(qrImage, qrX, qrY);

			//二维码LOGO
			if (!string.IsNullOrWhiteSpace(logoPath))
			{
				var logoMap = SKBitmap.Decode(logoPath);
				var logoSize = new SKSizeI(160, 160);
				var logoImage = logoMap.Resize(logoSize, SKFilterQuality.High);
				var logoX = (qrImage.Width - logoImage.Width) / 2 + qrX;
				var logoY = (qrImage.Width - logoImage.Width) / 2 + qrY;
				canvas.DrawBitmap(logoImage, logoX, logoY);
			}

			float titleY = 248;
			float textX = 120;
			float textWidth = mapInfo.Width - (textX * 2);
			if (!string.IsNullOrWhiteSpace(title))
			{
				//标题文字 13
				var titlePaint = new SKPaint
				{
					Color = SKColors.White,
					TextSize = 85F,
					Typeface = Font,
					FakeBoldText = true
				};
				canvas.DrawText(title, textX, titleY, titlePaint);
			}

			if (!string.IsNullOrWhiteSpace(text))
			{
				//子标题 100
				var textPaint = new SKPaint
				{
					Color = SKColors.White,
					TextSize = 65F,
					Typeface = Font
				};
				float textLineWidth = 0;
				var startIndex = 0;
				var textlineHeight = titleY + 150;
				for (int i = 0; i < text.Length; i++)
				{
					textLineWidth += textPaint.MeasureText(text[i].ToString());
					if (textLineWidth >= textWidth)
					{
						var length = startIndex == 0 ? i - startIndex + 1 : i - startIndex;
						canvas.DrawText(text.Substring(startIndex, length), textX, textlineHeight, textPaint);
						startIndex = i;
						textLineWidth = 0;
						textlineHeight += 20 + Convert.ToInt32(textPaint.TextSize);
					}
					if (i == text.Length - 1)
					{
						canvas.DrawText(text.Substring(startIndex, i - startIndex + 1), textX, textlineHeight, textPaint);
					}
				}
			}


			var stream = SKImage.FromBitmap(map).Encode(SKEncodedImageFormat.Png, 100).AsStream();
			return _fileFactory.Create(dir, fileName, stream).FilePath;
		}


		#endregion