public string GetTRefText(SvgTRefElement element)
{
XmlElement refElement = element.ReferencedElement;
if (refElement != null)
{
return TrimText(element, refElement.InnerText);
}
else
{
return String.Empty;
}
}
private void AddTRefElementPath(SvgTRefElement element, ref PointF ctp)
{
ctp = GetCurrentTextPosition(element, ctp);
this.AddGraphicsPath(element, ref ctp, GetTRefText(element));
}
protected virtual void GetGraphicsPath(ref PointF ctp)
{
gp = new GraphicsPath();
if (this is SvgTextPositioningElement)
{
SvgTextPositioningElement tpElm = (SvgTextPositioningElement)this;
ctp = this.GetCurrentTextPosition(tpElm, ctp);
}
string sBaselineShift = GetPropertyValue("baseline-shift").Trim();
double shiftBy = 0;
if (sBaselineShift.Length > 0)
{
SvgTextElement textElement = this as SvgTextElement;
if (textElement == null)
{
textElement = (SvgTextElement)this.SelectSingleNode("ancestor::svg:text", this.OwnerDocument.NamespaceManager);
}
float textFontSize = textElement._getComputedFontSize();
if (sBaselineShift.EndsWith("%"))
{
shiftBy = SvgNumber.ParseToFloat(sBaselineShift.Substring(0, sBaselineShift.Length - 1)) / 100 * textFontSize;
}
else if (sBaselineShift == "sub")
{
shiftBy = -0.6F * textFontSize;
}
else if (sBaselineShift == "super")
{
shiftBy = 0.6F * textFontSize;
}
else if (sBaselineShift == "baseline")
{
shiftBy = 0;
}
else
{
shiftBy = SvgNumber.ParseToFloat(sBaselineShift);
}
}
foreach (XmlNode child in this.ChildNodes)
{
gp.StartFigure();
if (child.NodeType == XmlNodeType.Text)
{
ctp.Y -= (float)shiftBy;
this.AddGraphicsPath(ref ctp, GetText(child));
ctp.Y += (float)shiftBy;
}
else if (child is SvgTRefElement)
{
SvgTRefElement trChild = (SvgTRefElement)child;
trChild.GetGraphicsPath(ref ctp);
}
else if (child is SvgTextContentElement)
{
SvgTextContentElement tcChild = (SvgTextContentElement)child;
tcChild.GetGraphicsPath(ref ctp);
}
}
}
private void AddTRefElementRun(SvgTRefElement element, ref Point ctp,
bool isVertical, bool isSingleLine)
{
WpfTextPlacement placement = WpfTextRenderer.GetCurrentTextPosition(element, ctp);
ctp = placement.Location;
double rotate = placement.Rotation;
if (!placement.HasPositions)
{
placement = null; // render it useless
}
if (isVertical)
{
if (isSingleLine)
{
this.RenderSingleLineTextV(element, ref ctp,
WpfTextRenderer.GetTRefText(element), rotate, placement);
}
else
{
this.RenderTextRunV(element, ref ctp,
WpfTextRenderer.GetTRefText(element), rotate, placement);
}
}
else
{
if (isSingleLine)
{
this.RenderSingleLineTextH(element, ref ctp,
WpfTextRenderer.GetTRefText(element), rotate, placement);
}
else
{
this.RenderTextRunH(element, ref ctp,
WpfTextRenderer.GetTRefText(element), rotate, placement);
}
}
}
private void RenderTRefPath(SvgTRefElement element, WpfTextOnPathDrawing pathDrawing,
ref Point ctp)
{
WpfTextPlacement placement = GetCurrentTextPosition(element, ctp);
ctp = placement.Location;
double rotate = placement.Rotation;
if (!placement.HasPositions)
{
placement = null; // Render it useless.
}
this.RenderTextPath(element, pathDrawing, GetTRefText(element),
new Point(ctp.X, ctp.Y), rotate, placement);
}