private static void ProcessClauseContent(XmlWriter writer, XmlNodeList nodeList, PdfLayoutSettings pdfLayoutSettings, Stack<PdfStyle> styleStack)
{
foreach (XmlNode node in nodeList)
{
switch (node.NodeType)
{
#region NodeType == Element
case XmlNodeType.Element:
{
switch (node.Name)
{
#region case font
case "font":
{
styleStack.Push(GetStyleFromFontElement(node, styleStack.Peek()));
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case b/strong
case "strong":
case "b":
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.Font.Bold = true;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case pws
case Term._ELEMENT_PRESERVE_WHITE_SPACE:
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.PreserveWhiteSpace = true;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case sup
case "sup":
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.FontTransform = FontTransform.Superscript;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case sub
case "sub":
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.FontTransform = FontTransform.Subscript;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case i/em
case "i":
case "em":
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.Font.Italic = true;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case u, a
//treat <a></a> just like <u></u> when rendering a PDF
case "a":
case "u":
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.Font.Underline = true;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case strike
case "strike":
{
PdfStyle newStyle = new PdfStyle();
newStyle.CopyFrom(styleStack.Peek());
newStyle.Font.Strikeout = true;
styleStack.Push(newStyle);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
styleStack.Pop();
break;
}
#endregion
#region case span
case "span":
{
XmlAttribute attrSpanStyle = node.Attributes["style"];
if (attrSpanStyle != null)
styleStack.Push(GetStyleFromStyleAttribute(attrSpanStyle, styleStack.Peek()));
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
if (attrSpanStyle != null)
styleStack.Pop();
break;
}
#endregion
#region case div
case "div":
{
XmlAttribute attrDivStyle = node.Attributes["style"];
if (attrDivStyle != null)
styleStack.Push(GetStyleFromStyleAttribute(attrDivStyle, styleStack.Peek()));
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
if (attrDivStyle != null)
styleStack.Pop();
WriteLineBreak(writer, true);
break;
}
#endregion
#region case br
case "br":
{
WriteLineBreak(writer, pdfLayoutSettings.OpenParagraphCounter <= 0);
break;
}
#endregion
#region case p
case "p":
{
if (ContainsImage(node))
{
ProcessImage(writer, pdfLayoutSettings, node);
}
else
{
if (pdfLayoutSettings.OpenParagraphCounter > 0)
{
writer.WriteEndElement(); //close current paragraph before starting a new one
pdfLayoutSettings.OpenParagraphCounter--;
}
if (node.ChildNodes.Count > 0)
{
writer.WriteStartElement("paragraph");
pdfLayoutSettings.InTextParagraph = true;
pdfLayoutSettings.OpenParagraphCounter++;
pdfLayoutSettings.ParagraphAlignment = GetParagraphAlignment(node);
writer.WriteAttributeString("spacingbefore", (pdfLayoutSettings.SuppressSpacingBefore ? "0" : PARAGRAPH_SPACING.ToString()));
if (!string.IsNullOrEmpty(pdfLayoutSettings.ParagraphAlignment.Key))
writer.WriteAttributeString(pdfLayoutSettings.ParagraphAlignment.Key, pdfLayoutSettings.ParagraphAlignment.Value);
if (pdfLayoutSettings.IsFirstParagraph && !pdfLayoutSettings.CompletedFirstTextNode)
{
WriteParagraphAttributes(writer, pdfLayoutSettings.FirstParagraphAttributes);
if (pdfLayoutSettings.PageBreakBefore)
{
writer.WriteAttributeString("startonnewpage", "true");
pdfLayoutSettings.PageBreakBefore = false;
}
if (pdfLayoutSettings.NumberingSchemeType != ChildNumberingSchemeType.None)
{
PdfStyle numberingStyle = DetermineNumberingStyle(node, DefaultStyle());
WriteNumberFragment(writer, pdfLayoutSettings.ParagraphAlignment, pdfLayoutSettings.NumberingSchemeType, pdfLayoutSettings.NumberingIndex, numberingStyle);
}
}
else
{
WriteParagraphAttributes(writer, pdfLayoutSettings.OtherParagraphAttributes);
}
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
pdfLayoutSettings.IsFirstParagraph = false;
} // if (node.ChildNodes.Count > 0)
if (pdfLayoutSettings.OpenParagraphCounter > 0)
{
writer.WriteEndElement(); //paragraph
pdfLayoutSettings.OpenParagraphCounter--;
}
}
break;
}
#endregion
#region case hr
case "hr":
{
if (pdfLayoutSettings.OpenParagraphCounter > 0)
{
writer.WriteEndElement(); //close current paragraph before starting a new one
pdfLayoutSettings.OpenParagraphCounter--;
}
XmlAttribute attrHrWidth = node.Attributes["size"];
int lineWidth = 1;
if (attrHrWidth != null)
if (!int.TryParse(attrHrWidth.Value, out lineWidth))
throw new ArgumentException(string.Format("Invalid width parameter on hr tag: '{0}'.", attrHrWidth.Value));
writer.WriteStartElement("paragraph");
pdfLayoutSettings.InTextParagraph = false;
writer.WriteAttributeString("type", "drawing");
writer.WriteAttributeString("spacingbefore", "3");
writer.WriteAttributeString("spacingafter", "3");
writer.WriteAttributeString("width", "540");
writer.WriteAttributeString("height", lineWidth.ToString());
writer.WriteStartElement("shape");
writer.WriteAttributeString("type", "lineshape");
writer.WriteAttributeString("x", "0");
writer.WriteAttributeString("y", "0");
writer.WriteAttributeString("x1", "540");
writer.WriteAttributeString("y1", "0");
writer.WriteStartElement("pen");
writer.WriteAttributeString("color", "black");
writer.WriteAttributeString("width", lineWidth.ToString());
writer.WriteEndElement(); // pen
writer.WriteEndElement(); // shape
writer.WriteEndElement(); // paragraph
break;
}
#endregion
#region case table
case "table":
{
if (pdfLayoutSettings.OpenParagraphCounter > 0)
{
writer.WriteEndElement(); //close current paragraph before starting a new one
pdfLayoutSettings.OpenParagraphCounter--;
}
writer.WriteStartElement("paragraph");
writer.WriteAttributeString("type", "table");
writer.WriteAttributeString("spacingbefore", (pdfLayoutSettings.CompletedFirstTextNode ? "0" : PARAGRAPH_SPACING.ToString()));
pdfLayoutSettings.InTextParagraph = false;
WriteTableAttributes(writer, node.Attributes, pdfLayoutSettings);
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
pdfLayoutSettings.TableCellSpacing = 0;
pdfLayoutSettings.TableCellPadding = 0;
writer.WriteEndElement(); // paragraph
pdfLayoutSettings.IsFirstParagraph = false;
break;
}
#endregion
#region case tr
case "tr":
{
writer.WriteStartElement("row");
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
writer.WriteEndElement(); // row
break;
}
#endregion
#region case td/th
case "td":
case "th":
{
//save off current pdfLayoutSettings to re-use after the table cell
PdfLayoutSettings savedPdfLayoutSettings = new PdfLayoutSettings();
pdfLayoutSettings.CopyTo(ref savedPdfLayoutSettings);
if (!string.IsNullOrEmpty(pdfLayoutSettings.TableCellAlignment))
{
pdfLayoutSettings.FirstParagraphAttributes["horizontalalignment"] = pdfLayoutSettings.TableCellAlignment;
pdfLayoutSettings.OtherParagraphAttributes["horizontalalignment"] = pdfLayoutSettings.TableCellAlignment;
}
//Set selected paragrpah layout attributes
pdfLayoutSettings.SuppressSpacingBefore = true;
pdfLayoutSettings.FirstParagraphAttributes = ParagraphAttributes(false, false, 0, false, false, false);
pdfLayoutSettings.OtherParagraphAttributes = ParagraphAttributes(false, false, 0, false, false, false);
pdfLayoutSettings.FirstParagraphAttributes = pdfLayoutSettings.OtherParagraphAttributes;
writer.WriteStartElement("cell");
WriteCellAttributes(writer, node.Attributes, pdfLayoutSettings);
if (node.ChildNodes.Count > 0)
{
writer.WriteStartElement("paragraph");
pdfLayoutSettings.InTextParagraph = true;
pdfLayoutSettings.OpenParagraphCounter++;
pdfLayoutSettings.ParagraphAlignment = GetParagraphAlignment(node);
writer.WriteAttributeString("spacingbefore", (pdfLayoutSettings.SuppressSpacingBefore ? "0" : PARAGRAPH_SPACING.ToString()));
if (!string.IsNullOrEmpty(pdfLayoutSettings.ParagraphAlignment.Key))
writer.WriteAttributeString(pdfLayoutSettings.ParagraphAlignment.Key, pdfLayoutSettings.ParagraphAlignment.Value);
if (pdfLayoutSettings.IsFirstParagraph && !pdfLayoutSettings.CompletedFirstTextNode)
{
WriteParagraphAttributes(writer, pdfLayoutSettings.FirstParagraphAttributes);
if (pdfLayoutSettings.PageBreakBefore)
{
writer.WriteAttributeString("startonnewpage", "true");
pdfLayoutSettings.PageBreakBefore = false;
}
}
else
{
WriteParagraphAttributes(writer, pdfLayoutSettings.OtherParagraphAttributes);
}
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
pdfLayoutSettings.IsFirstParagraph = false;
} // if (node.ChildNodes.Count > 0)
if (pdfLayoutSettings.OpenParagraphCounter > 0)
{
writer.WriteEndElement(); //paragraph
pdfLayoutSettings.OpenParagraphCounter--;
}
writer.WriteEndElement(); // cell
//reset paragrpah layout attributes back to the saved values
savedPdfLayoutSettings.CopyTo(ref pdfLayoutSettings);
break;
}
#endregion
#region unused table elements
case "tbody":
case "thead":
case "tfoot":
{
ProcessClauseContent(writer, node.ChildNodes, pdfLayoutSettings, styleStack);
break;
}
#endregion
#region case "img"
case "img":
{
PdfStyle currentStyle = styleStack.Peek();
writer.WriteStartElement("fragment");
writer.WriteAttributeString("font", TallPDFFontName(currentStyle.Font));
writer.WriteAttributeString("fontsize", currentStyle.Font.Size.ToString());
if (pdfLayoutSettings.SuppressSpaceBetweenFragments)
if (!char.IsWhiteSpace(node.OuterXml[0]))
writer.WriteAttributeString("suppressspacebefore", "true");
if (currentStyle.Font.Underline)
writer.WriteAttributeString("underline", "true");
if (currentStyle.Font.Strikeout)
writer.WriteAttributeString("strikeout", "true");
if (currentStyle.FontTransform == FontTransform.Subscript)
writer.WriteAttributeString("subscript", "true");
else
if (currentStyle.FontTransform == FontTransform.Superscript)
writer.WriteAttributeString("superscript", "true");
writer.WriteString(Utility.XMLHelper.GetText(node));
writer.WriteEndElement(); //fragment
break;
}
#endregion
#region "itatImage"
case XMLNames._A_ITATImageElement:
{
//do nothing. This is processed within the <p> tag, using the ProcessImage() method
break;
}
#endregion
#region default (throw exception)
default:
throw new Exception("XHTML Element not processed: " + node.OuterXml);
#endregion
}
break;
}
#endregion
#region NodeType == Text
case XmlNodeType.Text:
{
bool createdNewParagraph = false;
if (pdfLayoutSettings.OpenParagraphCounter <= 0)
{
createdNewParagraph = true;
writer.WriteStartElement("paragraph"); //start new paragraph
pdfLayoutSettings.InTextParagraph = true;
pdfLayoutSettings.OpenParagraphCounter++;
writer.WriteAttributeString("spacingbefore", "0");
if (!string.IsNullOrEmpty(pdfLayoutSettings.ParagraphAlignment.Key))
writer.WriteAttributeString(pdfLayoutSettings.ParagraphAlignment.Key, pdfLayoutSettings.ParagraphAlignment.Value);
if (pdfLayoutSettings.IsFirstParagraph)
{
WriteParagraphAttributes(writer, pdfLayoutSettings.FirstParagraphAttributes);
if (pdfLayoutSettings.PageBreakBefore)
{
writer.WriteAttributeString("startonnewpage", "true");
pdfLayoutSettings.PageBreakBefore = false;
}
}
else
WriteParagraphAttributes(writer, pdfLayoutSettings.OtherParagraphAttributes);
}
PdfStyle currentStyle = styleStack.Peek();
writer.WriteStartElement("fragment");
writer.WriteAttributeString("font", TallPDFFontName(currentStyle.Font));
if (currentStyle.PreserveWhiteSpace)
writer.WriteAttributeString("preservewhitespace", "true"); //RLR,DG v1.5 - added to preserve formatting in text terms (e.g., line breaks)
writer.WriteAttributeString("fontsize", currentStyle.Font.Size.ToString());
if (pdfLayoutSettings.SuppressSpaceBetweenFragments)
if (!char.IsWhiteSpace(node.Value[0]))
writer.WriteAttributeString("suppressspacebefore", "true");
if (currentStyle.Font.Underline)
writer.WriteAttributeString("underline", "true");
if (currentStyle.Font.Strikeout)
writer.WriteAttributeString("strikeout", "true");
if (currentStyle.FontTransform == FontTransform.Subscript)
writer.WriteAttributeString("subscript", "true");
else
if (currentStyle.FontTransform == FontTransform.Superscript)
writer.WriteAttributeString("superscript", "true");
writer.WriteString(node.Value);
writer.WriteEndElement(); //fragment
//if THIS node does NOT end with a space, then suppress the extra space before the NEXT fragment
pdfLayoutSettings.SuppressSpaceBetweenFragments = (!node.Value.EndsWith(" "));
pdfLayoutSettings.CompletedFirstTextNode = true;
if (createdNewParagraph)
{
writer.WriteEndElement(); //paragraph
pdfLayoutSettings.OpenParagraphCounter--;
}
break;
}
#endregion
#region NodeType == Whitespace
case XmlNodeType.Whitespace:
{
bool createdParagraph = false;
if (pdfLayoutSettings.OpenParagraphCounter <= 0)
{
writer.WriteStartElement("paragraph");
createdParagraph = true;
pdfLayoutSettings.OpenParagraphCounter++;
writer.WriteAttributeString("type", "textparagraph");
writer.WriteAttributeString("spacingbefore", (pdfLayoutSettings.SuppressSpacingBefore ? "0" : PARAGRAPH_SPACING.ToString()));
}
PdfStyle currentStyle = styleStack.Peek();
writer.WriteStartElement("fragment");
writer.WriteAttributeString("font", TallPDFFontName(currentStyle.Font));
writer.WriteAttributeString("fontsize", currentStyle.Font.Size.ToString());
if (pdfLayoutSettings.SuppressSpaceBetweenFragments)
writer.WriteAttributeString("suppressspacebefore", "true");
if (currentStyle.Font.Underline)
writer.WriteAttributeString("underline", "true");
if (currentStyle.Font.Strikeout)
writer.WriteAttributeString("strikeout", "true");
writer.WriteString(node.Value);
writer.WriteEndElement(); //fragment
if (createdParagraph)
{
writer.WriteEndElement(); // paragraph
pdfLayoutSettings.OpenParagraphCounter--;
}
//DO NOT suppress the space before the NEXT fragment
pdfLayoutSettings.SuppressSpaceBetweenFragments = false;
break;
}
#endregion
#region unused NodeTypes (throw exception)
case XmlNodeType.SignificantWhitespace:
case XmlNodeType.Attribute:
case XmlNodeType.CDATA:
case XmlNodeType.Comment:
case XmlNodeType.Document:
case XmlNodeType.DocumentFragment:
case XmlNodeType.DocumentType:
case XmlNodeType.EndElement:
case XmlNodeType.EndEntity:
case XmlNodeType.Entity:
case XmlNodeType.EntityReference:
case XmlNodeType.None:
case XmlNodeType.Notation:
case XmlNodeType.ProcessingInstruction:
case XmlNodeType.XmlDeclaration:
default:
throw new Exception(string.Format("XHTML Node not processed: NodeType={0}, OuterXml= ", node.NodeType.ToString(), node.OuterXml));
#endregion
}
}
}
