/// <summary>
/// Method for starting the text formatting process. Each event handler
/// will call this after the current fontrendering is updated.
/// </summary>
private void UpdateFormattedText(double pixelsPerDip)
{
// Make sure all UI is loaded
if (!_UILoaded)
{
return;
}
// Initialize the text store.
_textStore = new CustomTextSource(_pixelsPerDip);
int textStorePosition = 0; //Index into the text of the textsource
System.Windows.Point linePosition = new System.Windows.Point(0, 0); //current line
// Create a DrawingGroup object for storing formatted text.
textDest = new DrawingGroup();
DrawingContext dc = textDest.Open();
// Update the text store.
_textStore.Text = textToFormat.Text;
_textStore.FontRendering = _currentRendering;
// Create a TextFormatter object.
TextFormatter formatter = TextFormatter.Create();
// Format each line of text from the text store and draw it.
while (textStorePosition < _textStore.Text.Length)
{
// Create a textline from the text store using the TextFormatter object.
using (TextLine myTextLine = formatter.FormatLine(
_textStore,
textStorePosition,
96 * 6,
new GenericTextParagraphProperties(_currentRendering, _pixelsPerDip),
null))
{
// Draw the formatted text into the drawing context.
myTextLine.Draw(dc, 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;
}
}
// Persist the drawn text content.
dc.Close();
// Display the formatted text in the DrawingGroup object.
myDrawingBrush.Drawing = textDest;
}
/// <summary>
/// Method for starting the text formatting process. Each event handler
/// will call this after the current fontrendering is updated.
/// </summary>
private void UpdateFormattedText(double pixelsPerDip)
{
// Make sure all UI is loaded
if (!_UILoaded)
return;
// Initialize the text store.
_textStore = new CustomTextSource(_pixelsPerDip);
int textStorePosition = 0; //Index into the text of the textsource
System.Windows.Point linePosition = new System.Windows.Point(0, 0); //current line
// Create a DrawingGroup object for storing formatted text.
textDest = new DrawingGroup();
DrawingContext dc = textDest.Open();
// Update the text store.
_textStore.Text = textToFormat.Text;
_textStore.FontRendering = _currentRendering;
// Create a TextFormatter object.
TextFormatter formatter = TextFormatter.Create();
// Format each line of text from the text store and draw it.
while (textStorePosition < _textStore.Text.Length)
{
// Create a textline from the text store using the TextFormatter object.
using (TextLine myTextLine = formatter.FormatLine(
_textStore,
textStorePosition,
96 * 6,
new GenericTextParagraphProperties(_currentRendering, _pixelsPerDip),
null))
{
// Draw the formatted text into the drawing context.
myTextLine.Draw(dc, 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;
}
}
// Persist the drawn text content.
dc.Close();
// Display the formatted text in the DrawingGroup object.
myDrawingBrush.Drawing = textDest;
}