public void AddTextHighlighter(TextRange textRange, Color backgroundColor)
{
if (!_hasPendingHightlighter)
{
QueuePendingHightlighter(textRange, backgroundColor);
}
else
{
if (_lastEnd == textRange.StartIndex && _lastHightlightColor == backgroundColor)
{
_lastEnd += textRange.Length;
}
else
{
TextRange range = new TextRange()
{
StartIndex = _lastStart, Length = _lastEnd - _lastStart
};
TextHighlighters.Add(new TextHighlighter()
{
Background = BrushFactory.GetSolidColorBrush(_lastHightlightColor),
Ranges = { range }
});
QueuePendingHightlighter(textRange, backgroundColor);
}
}
}
private void AppendParagraph(RichTextBlockDiffContext richTextBlockData, string text, ref int index, Color?background = null, Color?foreground = null)
{
var paragraph = new Paragraph
{
LineStackingStrategy = LineStackingStrategy.BlockLineHeight,
Foreground = foreground.HasValue
? BrushFactory.GetSolidColorBrush(foreground.Value)
: _defaultForeground,
};
paragraph.LineHeight = paragraph.FontSize + 6;
var run = new Run {
Text = text
};
paragraph.Inlines.Add(run);
richTextBlockData.Blocks.Add(paragraph);
if (background != null)
{
richTextBlockData.AddTextHighlighter(new TextRange()
{
StartIndex = index, Length = text.Length
}, background.Value);
}
index += text.Length;
}
public IList <TextHighlighter> GetTextHighlighters()
{
if (_hasPendingHightlighter)
{
TextRange range = new TextRange()
{
StartIndex = _lastStart, Length = _lastEnd - _lastStart
};
TextHighlighters.Add(new TextHighlighter()
{
Background = BrushFactory.GetSolidColorBrush(_lastHightlightColor),
Ranges = { range }
});
_hasPendingHightlighter = false;
}
return(TextHighlighters);
}
private Inline NewRun(RichTextBlockDiffContext richTextBlockData, string text, ref int index, Color?background = null, Color?foreground = null)
{
var run = new Run
{
Text = text,
Foreground = foreground.HasValue
? BrushFactory.GetSolidColorBrush(foreground.Value)
: _defaultForeground
};
if (background != null)
{
richTextBlockData.AddTextHighlighter(new TextRange()
{
StartIndex = index, Length = text.Length
}, background.Value);
}
index += text.Length;
return(run);
}
public RichTextBlockDiffRenderer()
{
differ = new SideBySideDiffBuilder(new Differ());
_brushFactory = new BrushFactory();
}
public RichTextBlockDiffContext(BrushFactory brushFactory)
{
Blocks = new List <Block>();
_brushFactory = brushFactory;
}