Outline text with System.Drawing?
I have the following code. Is there an easy way to put an outline on the text I am writing?
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, myViewMo开发者_运维知识库del.ContainerHeight);
var stringFormat = new StringFormat {Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center};
graphics.DrawString(customizationText, font, brush, container, stringFormat);
Yes. Instead of DrawString, use the following sequence of calls:
new GraphicsPath
(creates an emptyGraphicsPath
)GraphicsPath.AddString
(theGraphicsPath
object now represents the outline of the text)Graphics.DrawPath
(draws the outline in anyPen
you want)
If you need to use GraphicsPath.AddString
alongside Graphics.DrawString
, you need to convert the font sizes, because Graphics.DrawString
expects “point size” while GraphicsPath.AddString
expects “em size”. The conversion formula is simply emSize = g.DpiY * pointSize / 72
.
Here's a code example:
// 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
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