private void RenderTSpanPath(SvgTSpanElement element, WpfPathTextBuilder pathBuilder, ref Point ctp)
{
WpfTextPlacement placement = WpfTextPlacement.Create(element, ctp, true);
ctp = placement.Location;
double rotate = placement.Rotation;
if (!placement.HasPositions)
{
placement = null; // Render it useless.
}
string sBaselineShift = element.GetPropertyValue("baseline-shift").Trim();
double shiftBy = 0;
var comparer = StringComparison.OrdinalIgnoreCase;
if (sBaselineShift.Length > 0)
{
SvgTextBaseElement textElement = (SvgTextBaseElement)element.SelectSingleNode("ancestor::svg:text",
element.OwnerDocument.NamespaceManager);
double textFontSize = GetComputedFontSize(textElement);
if (sBaselineShift.EndsWith("%", comparer))
{
shiftBy = SvgNumber.ParseNumber(sBaselineShift.Substring(0,
sBaselineShift.Length - 1)) / 100f * textFontSize;
}
else if (string.Equals(sBaselineShift, "sub", comparer))
{
shiftBy = -0.6F * textFontSize;
}
else if (string.Equals(sBaselineShift, "super", comparer))
{
shiftBy = 0.6F * textFontSize;
}
else if (string.Equals(sBaselineShift, "baseline", comparer))
{
shiftBy = 0;
}
else
{
shiftBy = SvgNumber.ParseNumber(sBaselineShift);
}
}
foreach (XmlNode child in element.ChildNodes)
{
if (child.NodeType == XmlNodeType.Text)
{
ctp.Y -= shiftBy;
RenderTextPath(element, pathBuilder, GetText(element, child),
new Point(ctp.X, ctp.Y), rotate, placement);
ctp.Y += shiftBy;
}
}
}
private void RenderTRefPath(SvgTRefElement element, WpfPathTextBuilder pathBuilder, ref Point ctp)
{
WpfTextPlacement placement = WpfTextPlacement.Create(element, ctp, true);
ctp = placement.Location;
double rotate = placement.Rotation;
if (!placement.HasPositions)
{
placement = null; // Render it useless.
}
this.RenderTextPath(element, pathBuilder, GetText(element),
new Point(ctp.X, ctp.Y), rotate, placement);
}