public OdfContentXmlDocument ReadMainContentXml()
{
using (var s = this.OpenEntryToRead(MainContentEntryPath))
{
var doc = new OdfContentXmlDocument(s);
return doc;
}
}
private static IEnumerable <XmlElement> FindAllRowElements(OdfContentXmlDocument xml)
{
var nodeList = xml.GetElementsByTagName(OdfDocument.TableRowElement);
foreach (XmlElement rowEle in nodeList)
{
yield return(rowEle);
}
}
private static void ProcessTableRows(OdfContentXmlDocument xml)
{
var rowElements = FindAllRowElements(xml).ToArray();
foreach (XmlElement row in rowElements)
{
//检测一个行中的 table-cell 是否只包含唯一的 report-directive 元素
//把其中的 cell 都去掉
ProcessSingleTableRowElement(row);
}
}
private static IEnumerable <XmlElement> MatchHrefPlaceholderElements(OdfContentXmlDocument xml)
{
var textAnchors = xml.GetElementsByTagName(OdfDocument.TextAnchorElement);
foreach (XmlElement ta in textAnchors)
{
var href = ta.GetAttribute("xlink:href");
if (href != null && href.Trim(' ', '/').StartsWith(WellknownConstants.DtlProtocolPrefix))
{
yield return(ta);
}
}
}
private static IEnumerable <XmlElement> FindAllPlaceholderElements(OdfContentXmlDocument xml)
{
var textPlaceholders = xml.GetElementsByTagName(OdfDocument.TextPlaceholderElement);
foreach (XmlElement tpe in textPlaceholders)
{
yield return(tpe);
}
foreach (XmlElement ele in MatchHrefPlaceholderElements(xml))
{
yield return(ele);
}
}
private static void ProcessIdentifierTag(OdfContentXmlDocument xml, XmlNode placeholder, string value)
{
Debug.Assert(xml != null);
Debug.Assert(placeholder != null);
Debug.Assert(!string.IsNullOrEmpty(value));
var ie = new ReferenceElement(xml, value);
if (placeholder.Name == OdfDocument.TextPlaceholderElement)
{
ProcessPlaceHolderElement(placeholder, ie);
}
else
{
placeholder.ParentNode.ReplaceChild(ie, placeholder);
}
}
private static void PreprocessElements(OdfContentXmlDocument xml)
{
var placeholders = FindAllPlaceholderElements(xml).ToArray();
foreach (XmlNode placeholder in placeholders)
{
string value = ExtractTemplateExpression(placeholder);
if (value.StartsWith(WellknownConstants.DtlReferenceChar))
{
ProcessIdentifierTag(xml, placeholder, value.Substring(1));
}
else if (value.StartsWith(WellknownConstants.DtlDirectiveChar))
{
var directiveNode = new DirectiveElement(xml, value.Substring(1));
directiveNode.ReduceTagByCount(placeholder);
}
else
{
throw new SyntaxErrorException($"Syntax error: '{value}'");
}
}
var drawFrameElements = xml.SelectNodes("//" + OdfDocument.DrawFrameElement, xml.NamespaceManager);
var dtlDrawFrames = new List <XmlNode>();
foreach (XmlNode node in drawFrameElements)
{
var nameAttr = node.Attributes["draw:name"];
if (nameAttr != null && !string.IsNullOrWhiteSpace(nameAttr.Value) && nameAttr.Value.Trim(' ').StartsWith(WellknownConstants.DtlReferenceChar))
{
dtlDrawFrames.Add(node);
}
}
foreach (var node in dtlDrawFrames)
{
ProcessDrawFrameElement(node, xml.NamespaceManager);
}
}
public void WriteMainContentXml(OdfContentXmlDocument xml) =>
this.WriteXmlEntry(this.MainContentEntryPath, xml);
