public ChatFormatter(Typeface typeface, double fontSize, Brush foreground, IDictionary<string,Brush> palette)
{
_runProperties = new CustomTextRunProperties(typeface, fontSize, foreground, Brushes.Transparent, false);
_paraProperties = new CustomParagraphProperties(_runProperties);
_formatter = TextFormatter.Create(TextFormattingMode.Display);
_palette = palette;
}
public override TextRun GetTextRun(int idx)
{
if (idx >= _text.Length)
{
return(new TextEndOfLine(1));
}
var props = _runProperties;
int end = _text.Length;
if (_spans != null)
{
var span = _spans.GetSpan(idx);
if (span.Flags > 0)
{
props = new CustomTextRunProperties(
new Typeface(_runProperties.Typeface.FontFamily,
_runProperties.Typeface.Style,
(span.Flags & ChatSpanFlags.Bold) > 0 ? FontWeights.Bold : FontWeights.Normal,
_runProperties.Typeface.Stretch),
_runProperties.FontRenderingEmSize,
(span.Flags & ChatSpanFlags.Reverse) > 0 ? _background :
((span.Flags & ChatSpanFlags.Foreground) > 0 ? _palette["Color" + span.Foreground] : _runProperties.ForegroundBrush),
(span.Flags & ChatSpanFlags.Reverse) > 0 ? _runProperties.ForegroundBrush :
((span.Flags & ChatSpanFlags.Background) > 0 ? _palette["Color" + span.Background] : _runProperties.BackgroundBrush),
(span.Flags & ChatSpanFlags.Underline) > 0);
}
end = span.End;
}
return(new TextCharacters(_text, idx, end - idx, props));
}
public ChatFormatter(Typeface typeface, double fontSize, Brush foreground, IDictionary <string, Brush> palette)
{
_runProperties = new CustomTextRunProperties(typeface, fontSize, foreground, Brushes.Transparent, false);
_paraProperties = new CustomParagraphProperties(_runProperties);
_formatter = TextFormatter.Create(TextFormattingMode.Display);
_palette = palette;
}
public IEnumerable <TextLine> Format(string text, IChatSpanProvider spans, double width, Brush foreground, Brush background,
TextWrapping textWrapping)
{
_text = text;
_spans = spans;
_background = background;
_runProperties = new CustomTextRunProperties(_runProperties.Typeface, _runProperties.FontRenderingEmSize, foreground,
Brushes.Transparent, false);
_paraProperties = new CustomParagraphProperties(_runProperties);
if (width < 0)
{
width = 0;
text = "";
}
int idx = 0;
while (idx < _text.Length)
{
var line = _formatter.FormatLine(this, idx, width, _paraProperties, null);
idx += line.Length;
yield return(line);
}
}
public IEnumerable<TextLine> Format(string text, IChatSpanProvider spans, double width, Brush foreground, Brush background,
TextWrapping textWrapping)
{
_text = text;
_spans = spans;
_background = background;
_runProperties = new CustomTextRunProperties(_runProperties.Typeface, _runProperties.FontRenderingEmSize, foreground,
Brushes.Transparent, false);
_paraProperties = new CustomParagraphProperties(_runProperties);
if (width < 0)
{
width = 0;
text = "";
}
int idx = 0;
while(idx < _text.Length)
{
var line = _formatter.FormatLine(this, idx, width, _paraProperties, null);
idx += line.Length;
yield return line;
}
}
public override TextRun GetTextRun(int idx)
{
if (idx >= _text.Length)
{
return new TextEndOfLine(1);
}
var props = _runProperties;
int end = _text.Length;
if (_spans != null)
{
var span = _spans.GetSpan(idx);
if (span.Flags > 0)
{
props = new CustomTextRunProperties(
new Typeface(_runProperties.Typeface.FontFamily,
_runProperties.Typeface.Style,
(span.Flags & ChatSpanFlags.Bold) > 0 ? FontWeights.Bold : FontWeights.Normal,
_runProperties.Typeface.Stretch),
_runProperties.FontRenderingEmSize,
(span.Flags & ChatSpanFlags.Reverse) > 0 ? _background :
((span.Flags & ChatSpanFlags.Foreground) > 0 ? _palette["Color"+span.Foreground] : _runProperties.ForegroundBrush),
(span.Flags & ChatSpanFlags.Reverse) > 0 ? _runProperties.ForegroundBrush :
((span.Flags & ChatSpanFlags.Background) > 0 ? _palette["Color"+span.Background] : _runProperties.BackgroundBrush),
(span.Flags & ChatSpanFlags.Underline) > 0);
}
end = span.End;
}
return new TextCharacters(_text, idx, end - idx, props);
}
