/// <summary>
/// Add a character formatting to a range in this paragraph.
/// To specify the whole paragraph as the range, set begin = end = -1.
/// Format that is added latter will override the former, if their
/// range overlays each other.
/// </summary>
/// <param name="begin">Beginning of the range</param>
/// <param name="end">End of the range</param>
public RtfCharFormat addCharFormat(int begin, int end)
{
RtfCharFormat fmt = new RtfCharFormat(begin, end, _text.Length);
_charFormats.Add(fmt);
return(fmt);
}
internal void copyFrom(RtfCharFormat src)
{
if (src == null)
{
return;
}
_begin = src._begin;
_end = src._end;
if (_font == null && src._font != null)
{
_font = new FontDescriptor(src._font.Value);
}
if (_ansiFont == null && src._ansiFont != null)
{
_ansiFont = new FontDescriptor(src._ansiFont.Value);
}
if (_fontSize < 0 && src._fontSize >= 0)
{
_fontSize = src._fontSize;
}
if (_fontStyle.IsEmpty && !src._fontStyle.IsEmpty)
{
_fontStyle = new FontStyle(src._fontStyle);
}
if (_bgColor == null && src._bgColor != null)
{
_bgColor = new ColorDescriptor(src._bgColor.Value);
}
if (_fgColor == null && src._fgColor != null)
{
_fgColor = new ColorDescriptor(src._fgColor.Value);
}
}
/// <summary>
/// Internal use only.
/// Constructor specifying allowed content blocks to be contained.
/// </summary>
/// <param name="allowParagraph">Whether an RtfParagraph is allowed.</param>
/// <param name="allowFootnote">Whether an RtfFootnote is allowed in contained RtfParagraph.</param>
/// <param name="allowControlWord">Whether an field control word is allowed in contained
/// RtfParagraph.</param>
/// <param name="allowImage">Whether RtfImage is allowed.</param>
/// <param name="allowTable">Whether RtfTable is allowed.</param>
internal RtfBlockList(bool allowParagraph, bool allowFootnote, bool allowControlWord,
bool allowImage, bool allowTable)
{
_blocks = new List <RtfBlock>();
_allowParagraph = allowParagraph;
_allowFootnote = allowFootnote;
_allowControlWord = allowControlWord;
_allowImage = allowImage;
_allowTable = allowTable;
_defaultCharFormat = null;
}
public RtfParagraph(bool allowFootnote, bool allowControlWord)
{
_text = new StringBuilder();
_linespacing = -1;
_margins = new Margins();
_align = Align.Left; //Changed default to .Left as .None was spreading text accross page.
_charFormats = new List <RtfCharFormat>();
_allowFootnote = allowFootnote;
_allowControlWord = allowControlWord;
_footnotes = new List <RtfFootnote>();
_controlWords = new List <RtfFieldControlWord>();
_blockHead = @"{\pard";
_blockTail = @"\par}";
_startNewPage = false;
_firstLineIndent = 0;
_defaultCharFormat = null;
}
protected LinkedList <Token> buildTokenList()
{
int count;
Token token;
LinkedList <Token> tokList = new LinkedList <Token>();
LinkedListNode <Token> node;
List <DisjointRange> dranges = new List <DisjointRange>();
#region Build head[] and tail[] from char format range for later use.
// --------------------------------------------------
// Transform possibly overlapped character format ranges into
// disjoint ranges.
// --------------------------------------------------
for (int i = 0; i < _charFormats.Count; i++)
{
RtfCharFormat fmt = _charFormats[i];
DisjointRange range = null;
if (fmt.Begin == -1 && fmt.End == -1)
{
range = new DisjointRange();
range.head = 0;
range.tail = _text.Length - 1;
range.format = fmt;
}
else if (fmt.Begin <= fmt.End)
{
range = new DisjointRange();
range.head = fmt.Begin;
range.tail = fmt.End;
range.format = fmt;
}
else
{
continue;
}
if (range.tail >= _text.Length)
{
range.tail = _text.Length - 1;
if (range.head > range.tail)
{
continue;
}
}
// make the ranges disjoint from each other.
List <DisjointRange> delList = new List <DisjointRange>();
List <DisjointRange> addList = new List <DisjointRange>();
List <DisjointRange> addAnchorList = new List <DisjointRange>();
for (int j = 0; j < dranges.Count; j++)
{
DisjointRange r = dranges[j];
if (range.head <= r.head && range.tail >= r.tail)
{
// former range is totally covered by the later
// |--------| r
// |-----------------| range
delList.Add(r);
}
else if (range.head <= r.head && range.tail >= r.head && range.tail < r.tail)
{
// former range is partially covered
// |------------------| r
// |-----------------| range
r.head = range.tail + 1;
}
else if (range.head > r.head && range.head <= r.tail && range.tail >= r.tail)
{
// former range is partially covered
// |------------------| r
// |-----------------| range
r.tail = range.head - 1;
}
else if (range.head > r.head && range.tail < r.tail)
{
// later range is totally covered by the former
// |----------------------| r
// |---------| range
DisjointRange newRange = new DisjointRange();
newRange.head = range.tail + 1;
newRange.tail = r.tail;
newRange.format = r.format;
r.tail = range.head - 1;
addList.Add(newRange);
addAnchorList.Add(r);
}
}
dranges.Add(range);
for (int j = 0; j < delList.Count; j++)
{
dranges.Remove(delList[j]);
}
for (int j = 0; j < addList.Count; j++)
{
int index = dranges.IndexOf(addAnchorList[j]);
if (index < 0)
{
continue;
}
dranges.Insert(index, addList[j]);
}
}
#endregion
token = new Token();
token.text = _text.ToString();
token.isControl = false;
tokList.AddLast(token);
#region Build token list from head[] and tail[].
// --------------------------------------------------
// Build token list from head[] and tail[].
// --------------------------------------------------
for (int i = 0; i < dranges.Count; i++)
{
DisjointRange r = dranges[i];
count = 0;
// process head[i]
if (r.head == 0)
{
Token newTok = new Token();
newTok.isControl = true;
newTok.text = r.format.renderHead();
tokList.AddFirst(newTok);
}
else
{
node = tokList.First;
while (node != null)
{
Token tok = node.Value;
if (!tok.isControl)
{
count += tok.text.Length;
if (count == r.head)
{
Token newTok = new Token();
newTok.isControl = true;
newTok.text = r.format.renderHead();
while (node.Next != null && node.Next.Value.isControl)
{
node = node.Next;
}
tokList.AddAfter(node, newTok);
break;
}
else if (count > r.head)
{
LinkedListNode <Token> newNode;
Token newTok1 = new Token();
newTok1.isControl = false;
newTok1.text = tok.text.Substring(0, tok.text.Length - (count - r.head));
newNode = tokList.AddAfter(node, newTok1);
Token newTok2 = new Token();
newTok2.isControl = true;
newTok2.text = r.format.renderHead();
newNode = tokList.AddAfter(newNode, newTok2);
Token newTok3 = new Token();
newTok3.isControl = false;
newTok3.text = tok.text.Substring(tok.text.Length - (count - r.head));
newNode = tokList.AddAfter(newNode, newTok3);
tokList.Remove(node);
break;
}
}
node = node.Next;
}
}
// process tail[i]
count = 0;
node = tokList.First;
while (node != null)
{
Token tok = node.Value;
if (!tok.isControl)
{
count += tok.text.Length;
if (count - 1 == r.tail)
{
Token newTok = new Token();
newTok.isControl = true;
newTok.text = r.format.renderTail();
tokList.AddAfter(node, newTok);
break;
}
else if (count - 1 > r.tail)
{
LinkedListNode <Token> newNode;
Token newTok1 = new Token();
newTok1.isControl = false;
newTok1.text = tok.text.Substring(0, tok.text.Length - (count - r.tail) + 1);
newNode = tokList.AddAfter(node, newTok1);
Token newTok2 = new Token();
newTok2.isControl = true;
newTok2.text = r.format.renderTail();
newNode = tokList.AddAfter(newNode, newTok2);
Token newTok3 = new Token();
newTok3.isControl = false;
newTok3.text = tok.text.Substring(tok.text.Length - (count - r.tail) + 1);
newNode = tokList.AddAfter(newNode, newTok3);
tokList.Remove(node);
break;
}
}
node = node.Next;
}
} // end for each char format
#endregion
#region Insert footnote into token list.
// --------------------------------------------------
// Insert footnote into token list.
// --------------------------------------------------
for (int i = 0; i < _footnotes.Count; i++)
{
int pos = _footnotes[i].Position;
if (pos >= _text.Length)
{
continue;
}
count = 0;
node = tokList.First;
while (node != null)
{
Token tok = node.Value;
if (!tok.isControl)
{
count += tok.text.Length;
if (count - 1 == pos)
{
Token newTok = new Token();
newTok.isControl = true;
newTok.text = _footnotes[i].render();
tokList.AddAfter(node, newTok);
break;
}
else if (count - 1 > pos)
{
LinkedListNode <Token> newNode;
Token newTok1 = new Token();
newTok1.isControl = false;
newTok1.text = tok.text.Substring(0, tok.text.Length - (count - pos) + 1);
newNode = tokList.AddAfter(node, newTok1);
Token newTok2 = new Token();
newTok2.isControl = true;
newTok2.text = _footnotes[i].render();
newNode = tokList.AddAfter(newNode, newTok2);
Token newTok3 = new Token();
newTok3.isControl = false;
newTok3.text = tok.text.Substring(tok.text.Length - (count - pos) + 1);
newNode = tokList.AddAfter(newNode, newTok3);
tokList.Remove(node);
break;
}
}
node = node.Next;
}
}
#endregion
#region Insert control words into token list.
// --------------------------------------------------
// Insert control words into token list.
// --------------------------------------------------
for (int i = 0; i < _controlWords.Count; i++)
{
int pos = _controlWords[i].Position;
if (pos >= _text.Length)
{
continue;
}
count = 0;
node = tokList.First;
while (node != null)
{
Token tok = node.Value;
if (!tok.isControl)
{
count += tok.text.Length;
if (count - 1 == pos)
{
Token newTok = new Token();
newTok.isControl = true;
newTok.text = _controlWords[i].render();
tokList.AddAfter(node, newTok);
break;
}
else if (count - 1 > pos)
{
LinkedListNode <Token> newNode;
Token newTok1 = new Token();
newTok1.isControl = false;
newTok1.text = tok.text.Substring(0, tok.text.Length - (count - pos) + 1);
newNode = tokList.AddAfter(node, newTok1);
Token newTok2 = new Token();
newTok2.isControl = true;
newTok2.text = _controlWords[i].render();
newNode = tokList.AddAfter(newNode, newTok2);
Token newTok3 = new Token();
newTok3.isControl = false;
newTok3.text = tok.text.Substring(tok.text.Length - (count - pos) + 1);
newNode = tokList.AddAfter(newNode, newTok3);
tokList.Remove(node);
break;
}
}
node = node.Next;
}
}
#endregion
return(tokList);
}
