become tags; its color/font are kept as paragraph effects
- var italic = paragraphStyle.Italic && !inherited.Italic;
- var bold = paragraphStyle.Bold && !inherited.Bold;
- var underline = paragraphStyle.Underline && !inherited.Underline;
- pText.Append(italic ? "" : string.Empty).Append(bold ? "" : string.Empty).Append(underline ? "" : string.Empty);
- ReadParagraphChildren(pText, node, styles, headIndex, paragraphStyle);
- pText.Append(underline ? "" : string.Empty).Append(bold ? "" : string.Empty).Append(italic ? "" : string.Empty);
+ // italic/bold/underline in effect on the (own or from body/div) become tags;
+ // its color/font are kept as paragraph effects
+ var openTags = new List();
+ var start = pText.Length;
+ SetTtmlTextTags(pText, openTags, paragraphStyle.Italic, paragraphStyle.Bold, paragraphStyle.Underline, null);
+ ReadParagraphChildren(pText, node, styles, headIndex, paragraphStyle, openTags);
+ CloseTtmlTags(pText, openTags, 0);
+ RemoveEmptyTtmlTags(pText, start);
}
- private static void ReadParagraphChildren(StringBuilder pText, XmlNode node, List styles, TtmlHeadIndex headIndex, TtmlTextStyle parentStyle)
+ private static string GetCloseTag(string openTag)
+ {
+ return openTag.StartsWith("" : " openTags, int count)
+ {
+ while (openTags.Count > count)
+ {
+ pText.Append(GetCloseTag(openTags[openTags.Count - 1]));
+ openTags.RemoveAt(openTags.Count - 1);
+ }
+ }
+
+ ///
+ /// Makes italic/bold/underline match the given state and opens the optional font tag. A style that
+ /// turns off closes its tag (and the tags opened inside it, which are reopened).
+ ///
+ private static void SetTtmlTextTags(StringBuilder pText, List openTags, bool italic, bool bold, bool underline, string fontTag)
+ {
+ var keepCount = openTags.Count;
+ for (var i = 0; i < openTags.Count; i++)
+ {
+ var tag = openTags[i];
+ if ((tag == "" && !italic) || (tag == "" && !bold) || (tag == "" && !underline))
+ {
+ keepCount = i;
+ break;
+ }
+ }
+
+ var reopen = new List();
+ for (var i = keepCount; i < openTags.Count; i++)
+ {
+ var tag = openTags[i];
+ if (!((tag == "" && !italic) || (tag == "" && !bold) || (tag == "" && !underline)))
+ {
+ reopen.Add(tag);
+ }
+ }
+
+ CloseTtmlTags(pText, openTags, keepCount);
+
+ if (italic && !reopen.Contains("") && !openTags.Contains(""))
+ {
+ reopen.Add("");
+ }
+
+ if (bold && !reopen.Contains("") && !openTags.Contains(""))
+ {
+ reopen.Add("");
+ }
+
+ if (underline && !reopen.Contains("") && !openTags.Contains(""))
+ {
+ reopen.Add("");
+ }
+
+ if (fontTag != null)
+ {
+ reopen.Add(fontTag);
+ }
+
+ foreach (var tag in reopen)
+ {
+ pText.Append(tag);
+ openTags.Add(tag);
+ }
+ }
+
+ private static readonly Regex EmptyFontTagRegex = new Regex("]*>