private void UpdateFormattedText02()
{
// Create a DrawingGroup object for storing formatted text.
myTextDisplay = new DrawingGroup();
DrawingContext drawingContext = myTextDisplay.Open();
// Update the text store.
customTextSource.Text = "The quick red fox jumped over the lazy brown dog.";
// Create a TextFormatter object.
TextFormatter formatter = TextFormatter.Create();
// Create common paragraph property settings.
CustomTextParagraphProperties customTextParagraphProperties
= new CustomTextParagraphProperties();
// <SnippetTextFormattingSnippet2>
// Create a textline from the text store using the TextFormatter object.
TextLine myTextLine = formatter.FormatLine(
customTextSource,
0,
400,
customTextParagraphProperties,
null);
// Draw the formatted text into the drawing context.
myTextLine.Draw(drawingContext, new Point(0, 0), InvertAxes.None);
// </SnippetTextFormattingSnippet2>
// Persist the drawn text content.
drawingContext.Close();
// Display the formatted text in the DrawingGroup object.
myDrawingBrush.Drawing = myTextDisplay;
}
private void UpdateFormattedText()
{
// Index into the text of the TextSource object.
int textStorePosition = 0;
// The position of the current line.
Point linePosition = new Point(0, 0);
// Create a DrawingGroup object for storing formatted text.
myTextDisplay = new DrawingGroup();
DrawingContext drawingContext = myTextDisplay.Open();
// Update the text store.
customTextSource.Text = textToFormat.Text;
// <SnippetTextFormattingSnippet1>
// Create a TextFormatter object.
TextFormatter formatter = TextFormatter.Create();
// Create common paragraph property settings.
CustomTextParagraphProperties customTextParagraphProperties
= new CustomTextParagraphProperties();
// Format each line of text from the text store and draw it.
while (textStorePosition < customTextSource.Text.Length)
{
// Create a textline from the text store using the TextFormatter object.
using (TextLine myTextLine = formatter.FormatLine(
customTextSource,
textStorePosition,
96 * 6,
customTextParagraphProperties,
null))
{
// Draw the formatted text into the drawing context.
myTextLine.Draw(drawingContext, linePosition, InvertAxes.None);
// Update the index position in the text store.
textStorePosition += myTextLine.Length;
// Update the line position coordinate for the displayed line.
linePosition.Y += myTextLine.Height;
}
}
// </SnippetTextFormattingSnippet1>
// Persist the drawn text content.
drawingContext.Close();
// Display the formatted text in the DrawingGroup object.
myDrawingBrush.Drawing = myTextDisplay;
}
