public FrameworkElement Create(TextFormatterProvider provider, bool useEllipsis, bool filterOutNewLines)
{
var textBlockText = sb.ToString();
tokens.Finish();
if (!useEllipsis && filterOutNewLines) {
return new FastTextBlock(provider, new TextSrc {
text = textBlockText,
tokens = tokens,
});
}
var textBlock = new TextBlock();
int offs = 0;
foreach (var line in GetLines(textBlockText)) {
if (offs != 0 && !filterOutNewLines)
textBlock.Inlines.Add(new LineBreak());
int endOffs = offs + line.Item1.Length;
Debug.Assert(offs <= textBlockText.Length);
while (offs < endOffs) {
int defaultTextLength, tokenLength;
TextTokenKind tokenKind;
if (!tokens.Find(offs, out defaultTextLength, out tokenKind, out tokenLength)) {
Debug.Fail("Could not find token info");
break;
}
if (defaultTextLength != 0) {
var text = textBlockText.Substring(offs, defaultTextLength);
textBlock.Inlines.Add(text);
}
offs += defaultTextLength;
if (tokenLength != 0) {
var hlColor = GetColor(tokenKind);
var text = textBlockText.Substring(offs, tokenLength);
var elem = new Run(text);
if (hlColor.FontStyle != null)
elem.FontStyle = hlColor.FontStyle.Value;
if (hlColor.FontWeight != null)
elem.FontWeight = hlColor.FontWeight.Value;
if (hlColor.Foreground != null)
elem.Foreground = hlColor.Foreground;
if (hlColor.Background != null)
elem.Background = hlColor.Background;
textBlock.Inlines.Add(elem);
}
offs += tokenLength;
}
Debug.Assert(offs == endOffs);
offs += line.Item2;
Debug.Assert(offs <= textBlockText.Length);
}
if (useEllipsis)
textBlock.TextTrimming = TextTrimming.CharacterEllipsis;
return textBlock;
}
/// <summary>
/// Creates a <see cref="TextFormatter"/> using the formatting mode used by the specified owner object.
/// </summary>
/// <param name="owner"></param>
/// <param name="provider"></param>
/// <returns></returns>
public static ITextFormatter Create(DependencyObject owner, TextFormatterProvider provider)
{
if (owner == null)
{
throw new ArgumentNullException("owner");
}
#if DOTNET4
switch (provider)
{
case TextFormatterProvider.BuiltIn:
return(new WpfTextFormatter(TextOptions.GetTextFormattingMode(owner)));
case TextFormatterProvider.GlyphRunFormatter:
return(new GlyphRunFormatter(TextOptions.GetTextFormattingMode(owner)));
}
return(null);
#else
object formattingMode = null;
if (TextFormattingModeProperty != null)
{
formattingMode = owner.GetValue(TextFormattingModeProperty);
}
switch (provider)
{
case TextFormatterProvider.BuiltIn:
return(new WpfTextFormatter(formattingMode));
case TextFormatterProvider.GlyphRunFormatter:
return(new Rendering.GlyphRunFormatter(formattingMode));
}
#endif
}
public FastTextBlock(TextFormatterProvider provider, IFastTextSource src)
{
this.provider = provider;
this.src = src;
}
public FastTextBlock(TextFormatterProvider provider)
: this(provider, new TextSrc())
{
}
public FastTextBlock(TextFormatterProvider provider, IFastTextSource src)
{
this.provider = provider;
this.src = src;
}
public FastTextBlock(TextFormatterProvider provider)
: this(provider, new TextSrc())
{
}
public FrameworkElement Create(TextFormatterProvider provider, bool useEllipsis, bool filterOutNewLines)
{
var textBlockText = sb.ToString();
tokens.Finish();
if (!useEllipsis && filterOutNewLines)
{
return(new FastTextBlock(provider, new TextSrc {
text = textBlockText,
tokens = tokens,
}));
}
var textBlock = new TextBlock();
int offs = 0;
foreach (var line in GetLines(textBlockText))
{
if (offs != 0 && !filterOutNewLines)
{
textBlock.Inlines.Add(new LineBreak());
}
int endOffs = offs + line.Item1.Length;
Debug.Assert(offs <= textBlockText.Length);
while (offs < endOffs)
{
int defaultTextLength, tokenLength;
TextTokenKind tokenKind;
if (!tokens.Find(offs, out defaultTextLength, out tokenKind, out tokenLength))
{
Debug.Fail("Could not find token info");
break;
}
if (defaultTextLength != 0)
{
var text = textBlockText.Substring(offs, defaultTextLength);
textBlock.Inlines.Add(text);
}
offs += defaultTextLength;
if (tokenLength != 0)
{
var hlColor = GetColor(tokenKind);
var text = textBlockText.Substring(offs, tokenLength);
var elem = new Run(text);
if (hlColor.FontStyle != null)
{
elem.FontStyle = hlColor.FontStyle.Value;
}
if (hlColor.FontWeight != null)
{
elem.FontWeight = hlColor.FontWeight.Value;
}
if (hlColor.Foreground != null)
{
elem.Foreground = hlColor.Foreground;
}
if (hlColor.Background != null)
{
elem.Background = hlColor.Background;
}
textBlock.Inlines.Add(elem);
}
offs += tokenLength;
}
Debug.Assert(offs == endOffs);
offs += line.Item2;
Debug.Assert(offs <= textBlockText.Length);
}
if (useEllipsis)
{
textBlock.TextTrimming = TextTrimming.CharacterEllipsis;
}
return(textBlock);
}
