public void ReplaceSpan(Span existingSpan, Span replacementSpan)
{
if (_span != existingSpan) throw new ArgumentException("The existing span is not the child of this paragraph.", "existingSpan");
if (_span != null) _span.Parent = null;
_span = replacementSpan;
if (_span != null) _span.Parent = this;
}
public void ReplaceSpan(Span existingSpan, Span replacementSpan)
{
int index = _spans.IndexOf(existingSpan);
if (index == -1) throw new ArgumentException("The existing span is not contained in this container.", "existingSpan");
if (replacementSpan != null)
{
_spans[index] = replacementSpan;
}
else
{
_spans.RemoveAt(index);
}
}
void RenderSpanInto(Span span, XmlElement container)
{
if (span is TextSpan)
{
container.AppendChild(container.OwnerDocument.CreateTextNode(StripAllWhitespace((span as TextSpan).Text)));
}
else if (span is SequenceSpan)
{
foreach (Span childSpan in (span as SequenceSpan).Spans)
{
RenderSpanInto(childSpan, container);
}
}
else if (span is FormattedSpan)
{
FormattedSpan formattedSpan = span as FormattedSpan;
string containerName;
switch (formattedSpan.Kind)
{
case FormattedSpanKind.Code:
containerName = "span-code";
break;
case FormattedSpanKind.Bold:
containerName = "span-bold";
break;
case FormattedSpanKind.Italic:
containerName = "span-italic";
break;
case FormattedSpanKind.Underline:
containerName = "span-underline";
break;
default:
containerName = "span-unknown";
break;
}
XmlElement formattedContainer = container.OwnerDocument.CreateElement(containerName);
container.AppendChild(formattedContainer);
RenderSpanInto(formattedSpan.ChildSpan, formattedContainer);
}
else if (span is ReferenceSpan)
{
RenderReference(span as ReferenceSpan, container);
}
}
public Paragraph(Span span)
{
_span = span;
_span.Parent = this;
}
// Span visitors, also placed in the base class earliest partial ordering:
public virtual void VisitSpan(Span span)
{
}
public ReferenceSpan(string kindTag, string reference, Span childSpan)
: base(childSpan)
{
_kindTag = kindTag;
_reference = reference;
}
public void ReplaceSpan(Span existingSpan, Span replacementSpan)
{
if (_childSpan != existingSpan) throw new ArgumentException("The existing span is not the child of this span.", "existingSpan");
ChildSpan = replacementSpan;
}
public WrapperSpan(Span childSpan)
{
_childSpan = childSpan;
if (_childSpan != null) _childSpan.Parent = this;
}
void RenderSpanInto(Span span, XmlElement container)
{
if (span is TextSpan)
{
container.AppendChild(container.OwnerDocument.CreateTextNode((span as TextSpan).Text));
}
else if (span is SequenceSpan)
{
foreach (Span childSpan in (span as SequenceSpan).Spans)
{
RenderSpanInto(childSpan, container);
}
}
else if (span is FormattedSpan)
{
FormattedSpan formattedSpan = span as FormattedSpan;
XmlElement formattedContainer = container.OwnerDocument.CreateElement("span");
container.AppendChild(formattedContainer);
switch (formattedSpan.Kind)
{
case FormattedSpanKind.Code:
formattedContainer.SetAttribute("kind", "code");
break;
case FormattedSpanKind.Bold:
formattedContainer.SetAttribute("kind", "bold");
break;
case FormattedSpanKind.Italic:
formattedContainer.SetAttribute("kind", "italic");
break;
case FormattedSpanKind.Underline:
formattedContainer.SetAttribute("kind", "underline");
break;
}
RenderSpanInto(formattedSpan.ChildSpan, formattedContainer);
}
else if (span is ReferenceSpan)
{
RenderReference(span as ReferenceSpan, container);
}
}