private void OnClick(object sender, EventArgs e)
{
// Initialize the text store.
if (customTextSource == null)
{
customTextSource = new CustomTextSource();
}
UpdateFormattedText03();
}
private void UpdateFormattedText(double pixelsPerDip)
{
if (!_UILoaded)
{
return;
}
_textStore = new CustomTextSource(_pixelsPerDip);
int textStorePosition = 0;
System.Windows.Point linePosition = new System.Windows.Point(0, 0);
DrawingGroup textDest = new DrawingGroup();
DrawingContext dc = textDest.Open();
//_textStore.Text = textToFormat.Text();
}
public void Should_FormatLine_With_DrawableRuns()
{
var defaultRunProperties = new GenericTextRunProperties(Typeface.Default, foregroundBrush: Brushes.Black);
var paragraphProperties = new GenericTextParagraphProperties(defaultRunProperties);
var textSource = new CustomTextSource("Hello World ->");
using (Start())
{
var textLine =
TextFormatter.Current.FormatLine(textSource, 0, double.PositiveInfinity, paragraphProperties);
Assert.Equal(3, textLine.TextRuns.Count);
Assert.True(textLine.TextRuns[1] is RectangleRun);
}
}
private void GenerateFormattedText(CustomTextSource textStore, DrawingContext dc, TextFormatter formatter)
{
int textStorePosition = 0; //Index into the text of the textsource
Point linePosition = new Point(0, 0); //current line
// Format each line of text from the text store and draw it.
while (textStorePosition < textStore.Text.Length)
{
TextLine textLine = formatter.FormatLine(textStore, textStorePosition, textStore.ParagraphWidth, textStore.CTPProperties, null);
// Draw the formatted text into the drawing context.
textLine.Draw(dc, linePosition, InvertAxes.None);
// Update the index position in the text store.
textStorePosition += textLine.Length;
// Update the line position coordinate for the displayed line.
linePosition.Y += textLine.Height;
}
}
protected override Size MeasureOverride(Size availableSize)
{
var defaultRunProperties = new GenericTextRunProperties(Typeface.Default, foregroundBrush: Brushes.Black,
baselineAlignment: BaselineAlignment.Center);
var paragraphProperties = new GenericTextParagraphProperties(defaultRunProperties);
var control = new Button {
Content = new TextBlock {
Text = "ClickMe"
}
};
Content = control;
var textSource = new CustomTextSource(control, defaultRunProperties);
control.Measure(Size.Infinity);
_textLine =
TextFormatter.Current.FormatLine(textSource, 0, double.PositiveInfinity, paragraphProperties);
return(base.MeasureOverride(availableSize));
}
private void OnLoaded(object sender, RoutedEventArgs routedEventArgs)
{
if (_paragraphProperty == null)
{
_paragraphProperty = new FontRendering(
48,
TextAlignment.Left,
null,
new Typeface("Arial"),
Brushes.Black,
Brushes.Transparent,
new TextEffectCollection());
}
// Initialize the text store.
if (_textSource == null)
_textSource = new CustomTextSource();
_uiLoaded = true; //All UI is loaded, can handle events now
UpdateText();
}
