private static void ApplyHighlight(VisualLineElement element, Highlight highlight, double magnify)
{
var trp = element.TextRunProperties;
var foregroundBrush = ColorBrush(highlight.Foreground);
if (foregroundBrush != null) trp.SetForegroundBrush(foregroundBrush);
// Block background highlighting handled by BlockBackgroundRenderer
// Otherwise selection highlight does not work as expected
if (!highlight.Name.Contains("Block"))
{
var backgroundBrush = ColorBrush(highlight.Background);
if (backgroundBrush != null) trp.SetBackgroundBrush(backgroundBrush);
}
if (!string.IsNullOrWhiteSpace(highlight.FontWeight) || !string.IsNullOrWhiteSpace(highlight.FontStyle))
{
var tf = trp.Typeface;
var weight = ConvertFontWeight(highlight.FontWeight) ?? tf.Weight;
var style = ConvertFontStyle(highlight.FontStyle) ?? tf.Style;
var typeFace = new Typeface(tf.FontFamily, style, weight, tf.Stretch);
trp.SetTypeface(typeFace);
}
if (highlight.Underline) trp.SetTextDecorations(TextDecorations.Underline);
if (double.IsNaN(magnify) == false) trp.SetFontRenderingEmSize(trp.FontRenderingEmSize*magnify);
}
private static void ApplyHighlight(VisualLineElement element, Highlight highlight, double magnify)
{
var trp = element.TextRunProperties;
var foregroundBrush = ColorBrush(highlight.Foreground);
if (foregroundBrush != null)
{
trp.SetForegroundBrush(foregroundBrush);
}
var backgroundBrush = ColorBrush(highlight.Background);
if (backgroundBrush != null)
{
trp.SetBackgroundBrush(backgroundBrush);
}
if (!string.IsNullOrWhiteSpace(highlight.FontWeight) || !string.IsNullOrWhiteSpace(highlight.FontStyle))
{
var tf = element.TextRunProperties.Typeface;
var weight = ConvertFontWeight(highlight.FontWeight) ?? tf.Weight;
var style = ConvertFontStyle(highlight.FontStyle) ?? tf.Style;
var typeFace = new Typeface(tf.FontFamily, style, weight, tf.Stretch);
trp.SetTypeface(typeFace);
}
if (highlight.Underline)
{
trp.SetTextDecorations(TextDecorations.Underline);
}
if (double.IsNaN(magnify) == false)
{
trp.SetFontRenderingEmSize(trp.FontRenderingEmSize * magnify);
}
}
private void ApplyLinePart(Highlight highlight, int sourceStart, int sourceLength, int lineStart, int lineEnd, int leadingSpaces, double magnify)
{
var start = Math.Max(sourceStart, lineStart + leadingSpaces);
var end = Math.Min(lineEnd, sourceStart + sourceLength);
if (start < end) ChangeLinePart(start, end, element => ApplyHighlight(element, highlight, magnify));
}
private static void UpdateHilightingColor(HighlightingColor highlightingColor, Highlight highlight)
{
highlightingColor.Foreground = new HighlightBrush(highlight.Foreground);
highlightingColor.Background = new HighlightBrush(highlight.Background);
highlightingColor.FontStyle = ConvertFontStyle(highlight.FontStyle);
highlightingColor.FontWeight = ConvertFontWeight(highlight.FontWeight);
highlightingColor.Underline = highlight.Underline;
}
