用System.Drawing概述文本？

Question

我有下面的代码。有什么简单的方法可以在我正在写的课文上画一个大纲吗？

 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);

Answer 1

是。不要使用DrawString，而是使用以下调用序列：

• new GraphicsPath (创建一个空的GraphicsPath)
• GraphicsPath.AddString ( GraphicsPath对象现在表示text)
• Graphics.DrawPath的大纲(在任何Pen中绘制提纲)

)

如果您需要将GraphicsPath.AddString与Graphics.DrawString一起使用，则需要转换字体大小，因为Graphics.DrawString需要“点大小”，而GraphicsPath.AddString需要“em大小”。转换公式是简单的emSize = g.DpiY * pointSize / 72。

下面是一个代码示例：

// 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 (e.g. center alignment)
g.DrawPath(Pens.Black, p);
// + g.FillPath if you want it filled as well