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1. 新增二维码操作 Util.QrCode.IQrCodeService .
2. 新增二维码组件标签 <util-qrcode> . 3. 新增水印组件标签 <util-water-mark> . 4. 新增哈希码组件标签 <util-hash-code> . 5. 新增回到顶部组件标签 <util-back-top> . 6. Json操作类 Util.Helpers.Json 的 JsonOptions 参数新增 IgnoreEmptyString 属性, 用于忽略空字符串. 7. 修复表单组件 SpaceItem 属性引起验证指令引用变量作用域错误导致的bug.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| using SixLabors.ImageSharp.Drawing; | ||
|
|
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| namespace Util.Images; | ||
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| /// <summary> | ||
| /// ImageSharp扩展 | ||
| /// </summary> | ||
| public static class ImageSharpExtensions { | ||
| /// <summary> | ||
| /// 转换颜色类型 | ||
| /// </summary> | ||
| /// <param name="color">颜色</param> | ||
| public static Color ToImageSharpColor( this System.Drawing.Color color ) { | ||
| return Color.FromRgba( color.R, color.G, color.B, color.A ); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// 图片缩放 | ||
| /// </summary> | ||
| /// <param name="image">图片</param> | ||
| /// <param name="scale">缩放比例</param> | ||
| public static Image Zoom( this Image image, double scale ) { | ||
| var width = Util.Helpers.Convert.ToInt( image.Width * scale ); | ||
| var height = Util.Helpers.Convert.ToInt( image.Height * scale ); | ||
| image.Mutate( t => { | ||
| t.Resize( new Size( width, height ) ); | ||
| } ); | ||
| return image; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// 设置圆角 | ||
| /// </summary> | ||
| /// <param name="image">图片</param> | ||
| /// <param name="cornerRadius">角度</param> | ||
| public static Image RoundCorners( this Image image, int cornerRadius ) { | ||
| image.Mutate( context => RoundCorners( context, cornerRadius ) ); | ||
| return image; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// 设置圆角 | ||
| /// </summary> | ||
| /// <param name="context">图片处理上下文</param> | ||
| /// <param name="cornerRadius">角度</param> | ||
| private static void RoundCorners( IImageProcessingContext context, int cornerRadius ) { | ||
| var size = context.GetCurrentSize(); | ||
| var corners = BuildCorners( size.Width, size.Height, cornerRadius ); | ||
| context.SetGraphicsOptions( new GraphicsOptions { AlphaCompositionMode = PixelAlphaCompositionMode.DestOut } ); | ||
| context.Fill( Color.Red, corners ); | ||
| } | ||
|
|
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| /// <summary> | ||
| /// 构建圆角 | ||
| /// </summary> | ||
| /// <param name="imageWidth">图片宽度</param> | ||
| /// <param name="imageHeight">图片高度</param> | ||
| /// <param name="cornerRadius">角度</param> | ||
| private static IPathCollection BuildCorners( int imageWidth, int imageHeight, float cornerRadius ) { | ||
| var rect = new RectangularPolygon( -0.5f, -0.5f, cornerRadius, cornerRadius ); | ||
| var cornerTopLeft = rect.Clip( new EllipsePolygon( cornerRadius - 0.5f, cornerRadius - 0.5f, cornerRadius ) ); | ||
| var rightPos = imageWidth - cornerTopLeft.Bounds.Width + 1; | ||
| var bottomPos = imageHeight - cornerTopLeft.Bounds.Height + 1; | ||
| var cornerTopRight = cornerTopLeft.RotateDegree( 90 ).Translate( rightPos, 0 ); | ||
| var cornerBottomLeft = cornerTopLeft.RotateDegree( -90 ).Translate( 0, bottomPos ); | ||
| var cornerBottomRight = cornerTopLeft.RotateDegree( 180 ).Translate( rightPos, bottomPos ); | ||
| return new PathCollection( cornerTopLeft, cornerBottomLeft, cornerTopRight, cornerBottomRight ); | ||
| } | ||
| } |
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