使用System.Drawing概述文本?
我有以下代码。 有没有简单的方法来概述我正在写的文字?
var imageEncoder = Encoder.Quality; var imageEncoderParameters = new EncoderParameters(1); imageEncoderParameters.Param[0] = new EncoderParameter(imageEncoder, 100L); var productImage = GetImageFromByteArray(myViewModel.ProductImage.DatabaseFile.FileContents); var graphics = Graphics.FromImage(productImage); var font = new Font("Segoe Script", 24); var brush = Brushes.Orange; var container = new Rectangle(myViewModel.ContainerX, myViewModel.ContainerY, myViewModel.ContainerWidth, myViewModel.ContainerHeight); var stringFormat = new StringFormat {Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center}; graphics.DrawString(customizationText, font, brush, container, stringFormat);
是。 而不是DrawString,使用以下调用序列:
-
new GraphicsPath
(创建一个空的GraphicsPath
) -
GraphicsPath.AddString
(GraphicsPath
对象现在代表文本的轮廓) -
Graphics.DrawPath
(在你想要的任何Pen
绘制轮廓)
如果你需要使用GraphicsPath.AddString
和Graphics.DrawString
,你需要转换字体大小,因为Graphics.DrawString
需要“点大小”,而GraphicsPath.AddString
需要“em大小”。 转换公式只是emSize = g.DpiY * pointSize / 72
。
这是一个代码示例:
// assuming g is the Graphics object on which you want to draw the text GraphicsPath p = new GraphicsPath(); p.AddString( "My Text String", // text to draw FontFamily.GenericSansSerif, // or any other font family (int) FontStyle.Regular, // font style (bold, italic, etc.) g.DpiY * fontSize / 72, // em size new Point(0, 0), // location where to draw text new StringFormat()); // set options here (eg center alignment) g.DrawPath(Pens.Black, p); // + g.FillPath if you want it filled as well