private void RenderHorzTextRun(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement, bool isWhitespace = false)
{
if (_horzRenderer == null)
{
return;
}
if (string.IsNullOrWhiteSpace(text) && !isWhitespace)
{
return;
}
if (placement != null)
{
placement.UpdatePositions(text);
}
// Force conversion to path geometry for text with surrogate pair, XmlXamlWriter cannot handle the output
bool isGeometryMode = _context.TextAsGeometry;
for (int i = 0; i < text.Length - 1; i++)
{
if (char.IsSurrogatePair(text[i], text[i + 1]))
{
_context.TextAsGeometry = true;
break;
}
}
_horzRenderer.RenderTextRun(element, ref ctp, text, rotate, placement);
_context.TextAsGeometry = isGeometryMode;
}
private void RenderTextRunV(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text) || _vertRenderer == null)
{
return;
}
if (placement != null)
{
placement.UpdatePositions(text);
}
_vertRenderer.RenderTextRun(element, ref ctp, text, rotate, placement);
}
private void RenderTextRunH(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement)
{
if (String.IsNullOrEmpty(text) || _horzRenderer == null)
{
return;
}
if (placement != null)
{
placement.UpdatePositions(text);
}
_horzRenderer.RenderTextRun(element, ref ctp, text, rotate, placement);
}
private void RenderSingleLineTextV(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement)
{
if (string.IsNullOrWhiteSpace(text) || _vertRenderer == null)
{
return;
}
string targetText = text.Trim();
if (placement != null)
{
placement.UpdatePositions(targetText);
}
_vertRenderer.RenderSingleLineText(element, ref ctp, targetText, rotate, placement);
}
private void RenderTextRunH(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement, bool isWhitespace = false)
{
if (_horzRenderer == null)
{
return;
}
if (string.IsNullOrWhiteSpace(text) && !isWhitespace)
{
return;
}
if (placement != null)
{
placement.UpdatePositions(text);
}
_horzRenderer.RenderTextRun(element, ref ctp, text, rotate, placement);
}
private void RenderVertText(SvgTextContentElement element, ref Point ctp,
string text, double rotate, WpfTextPlacement placement, bool isWhitespace = false)
{
if (_vertRenderer == null)
{
return;
}
if (string.IsNullOrWhiteSpace(text) && !isWhitespace)
{
return;
}
string targetText = text.Trim();
if (placement != null)
{
placement.UpdatePositions(targetText);
}
_vertRenderer.RenderText(element, ref ctp, targetText, rotate, placement);
}
