private void PreCoalesceRow(DocumentNode dn, ref bool fVMerged)
{
DocumentNodeArray dnaCells = dn.GetRowsCells();
RowFormat rf = dn.FormatState.RowFormat;
DocumentNode dnTable = dn.GetParentOfType(DocumentNodeType.dnTable);
ColumnStateArray csa = (dnTable != null) ? dnTable.ColumnStateArray : null;
// Normally number of cells and cell definitions are equal, but be careful.
int nCount = dnaCells.Count < rf.CellCount ? dnaCells.Count : rf.CellCount;
// Non-unary colspan can arise both because I have "merged" cells specified
// as well as because I just have cells that exactly span some other cols.
// The code in PreCoalesce enforces that the cells line up, so I can just
// test for that here.
int nColsSeen = 0;
int i = 0;
while (i < nCount)
{
DocumentNode dnCell = dnaCells.EntryAt(i);
CellFormat cf = rf.NthCellFormat(i);
long cellx = cf.CellX;
// optimization - record if we encountered a vmerged cell
if (cf.IsVMerge)
{
fVMerged = true;
}
// Determine colspan based on cells we will eliminate through the merge flags
if (cf.IsHMergeFirst)
{
for (i++; i < nCount; i++)
{
cf = rf.NthCellFormat(i);
if (cf.IsVMerge)
{
fVMerged = true;
}
if (cf.IsHMerge)
{
dnaCells.EntryAt(i).ColSpan = 0; // zero means omit this cell
}
}
}
else
{
i++;
}
// Determine actual colspan based on cellx value
if (csa != null)
{
int nColStart = nColsSeen;
while (nColsSeen < csa.Count)
{
ColumnState cs = csa.EntryAt(nColsSeen);
nColsSeen++;
// This is the normal case
if (cs.CellX == cellx)
{
break;
}
// This is anomalous, but can occur with odd \cellx values (non-monotonically increasing).
if (cs.CellX > cellx)
{
break;
}
}
if (nColsSeen - nColStart > dnCell.ColSpan)
{
dnCell.ColSpan = nColsSeen - nColStart;
}
}
}
}
private void WriteStructure(DocumentNode dnThis)
{
DocumentNodeArray dna = _converterState.DocumentNodeArray;
bool nested = dnThis.GetParentOfType(DocumentNodeType.dnCell) != null;
// Prolog
switch (dnThis.Type)
{
case DocumentNodeType.dnSection:
{
WriteSection(dnThis);
return;
}
case DocumentNodeType.dnParagraph:
{
WriteParagraph(dnThis);
return;
}
case DocumentNodeType.dnInline:
{
WriteInlineChild(dnThis);
return;
}
case DocumentNodeType.dnInlineUIContainer:
case DocumentNodeType.dnBlockUIContainer:
{
WriteUIContainerChild(dnThis);
return;
}
case DocumentNodeType.dnList:
case DocumentNodeType.dnListItem:
// Handled as paragraph properties
break;
case DocumentNodeType.dnTable:
// Make sure column format is canonicalized
if (dnThis.FormatState.HasRowFormat)
{
dnThis.FormatState.RowFormat.Trleft = dnThis.FormatState.LI;
dnThis.FormatState.RowFormat.CanonicalizeWidthsFromXaml();
}
PatchVerticallyMergedCells(dnThis);
break;
case DocumentNodeType.dnTableBody:
// For RTF, we only write row properties.
break;
case DocumentNodeType.dnRow:
WriteRow(dnThis);
break;
case DocumentNodeType.dnCell:
break;
default:
// Not really structure
return;
}
// Write direct children, except for row
if (dnThis.Type != DocumentNodeType.dnRow)
{
int nStart = dnThis.Index + 1;
int nEnd = dnThis.Index + dnThis.ChildCount;
for (; nStart <= nEnd; nStart++)
{
DocumentNode dnChild = dna.EntryAt(nStart);
if (dnChild.Parent == dnThis)
{
WriteStructure(dnChild);
}
}
}
// Epilog
switch (dnThis.Type)
{
case DocumentNodeType.dnList:
case DocumentNodeType.dnListItem:
// Handled as paragraph properties
break;
case DocumentNodeType.dnTable:
break;
case DocumentNodeType.dnTableBody:
break;
case DocumentNodeType.dnRow:
// Handled above
break;
case DocumentNodeType.dnCell:
if (!dnThis.IsTerminated)
{
_rtfBuilder.Append(nested ? "\\nestcell" : "\\cell");
_rtfBuilder.Append("\r\n");
}
break;
}
}
/// <summary>
/// Wirte the CellX control and value to layout the cell position on the table and
/// return the last cell x position.
/// There is no smart calculation for getting cell width without the specified value,
/// so we use DefaultCellXAsTwips(1440) magic number which is the default CellX value on Word.
/// </summary>
private long WriteCellDimensions(DocumentNode dnCell, int nCol, long lastCellX)
{
DocumentNode dnTable = dnCell.GetParentOfType(DocumentNodeType.dnTable);
if (dnTable.FormatState.HasRowFormat)
{
RowFormat rf = dnTable.FormatState.RowFormat;
CellFormat cf = rf.NthCellFormat(nCol);
if (dnCell.ColSpan > 1)
{
CellFormat cfSpanned = new CellFormat(cf);
for (int i = 1; i < dnCell.ColSpan; i++)
{
cf = rf.NthCellFormat(nCol + i);
cfSpanned.Width.Value += cf.Width.Value;
cfSpanned.CellX = cf.CellX;
}
// Calculate the default value if CellX never set or has zero cell count
if (cfSpanned.CellX == -1 || rf.CellCount == 0)
{
// Calculate the default CellX value with tables width
cfSpanned.CellX = lastCellX +
dnCell.ColSpan * DefaultCellXAsTwips +
GetDefaultAllTablesWidthFromCell(dnCell);
}
// Write the encoded width information like as CellX control and value
_rtfBuilder.Append(cfSpanned.RTFEncodingForWidth);
// Save the last CellX value to accumulate it with the next cell
lastCellX = cfSpanned.CellX;
}
else
{
if (cf.CellX == -1 || rf.CellCount == 0)
{
// Calculate the default CellX value
cf.CellX = lastCellX + DefaultCellXAsTwips + GetDefaultAllTablesWidthFromCell(dnCell);
}
// Write the encoded width information like as CellX control and value
_rtfBuilder.Append(cf.RTFEncodingForWidth);
lastCellX = cf.CellX;
}
}
else
{
_rtfBuilder.Append("\\clftsWidth1");
_rtfBuilder.Append("\\cellx");
// Set the CellX value and write the CellX control and value
long cellX = lastCellX + dnCell.ColSpan * DefaultCellXAsTwips;
_rtfBuilder.Append(cellX.ToString(CultureInfo.InvariantCulture));
lastCellX = cellX;
}
return lastCellX;
}
private void WriteRowSettings(DocumentNode dnRow)
{
DocumentNode dnTable = dnRow.GetParentOfType(DocumentNodeType.dnTable);
DirState dirHere = dnTable != null ? dnTable.XamlDir : DirState.DirLTR;
DirState dirPa = dnTable != null ? dnTable.ParentXamlDir : DirState.DirLTR;
if (dnTable != null)
{
// Note: Parent directionality determines margin interpretation.
long l = dirPa == DirState.DirLTR ? dnTable.FormatState.LI : dnTable.FormatState.RI;
string s = l.ToString(CultureInfo.InvariantCulture);
_rtfBuilder.Append("\\trleft");
_rtfBuilder.Append(s);
_rtfBuilder.Append("\\trgaph-");
_rtfBuilder.Append(s);
}
else
{
_rtfBuilder.Append("\\trgaph0");
_rtfBuilder.Append("\\trleft0");
}
WriteRowBorders(dnRow);
WriteRowDimensions(dnRow);
WriteRowPadding(dnRow);
_rtfBuilder.Append("\\trql");
if (dirHere == DirState.DirRTL)
{
_rtfBuilder.Append("\\rtlrow");
}
else
{
_rtfBuilder.Append("\\ltrrow");
}
}
private bool WriteParagraphListInfo(DocumentNode dnThis, FormatState fsThis)
{
bool bOutControl = false;
bool bNewStyle = GenerateListTables;
if (dnThis.ListLabel != null)
{
DocumentNode dnList = dnThis.GetParentOfType(DocumentNodeType.dnList);
if (dnList != null)
{
// Old style list info for RichEdit and other non-Word client compat if I can.
// Only do this for simple, non multi-level lists.
if (bNewStyle && dnList.FormatState.PNLVL == 1)
{
bNewStyle = false;
}
if (bNewStyle)
{
_rtfBuilder.Append("{\\listtext ");
_rtfBuilder.Append(dnThis.ListLabel);
if (dnList.FormatState.Marker != MarkerStyle.MarkerBullet
&& dnList.FormatState.Marker != MarkerStyle.MarkerNone)
{
_rtfBuilder.Append(".");
}
_rtfBuilder.Append("\\tab}");
// NB: RichEdit requires \ls keyword to occur immediately after \listtext
if (fsThis.ILS > 0)
{
_rtfBuilder.Append("\\ls");
_rtfBuilder.Append(fsThis.ILS.ToString(CultureInfo.InvariantCulture));
bOutControl = true;
}
if (fsThis.ILVL > 0)
{
_rtfBuilder.Append("\\ilvl");
_rtfBuilder.Append(fsThis.ILVL.ToString(CultureInfo.InvariantCulture));
bOutControl = true;
}
}
else
{
_rtfBuilder.Append("{\\pntext ");
_rtfBuilder.Append(dnThis.ListLabel);
if (dnList.FormatState.Marker != MarkerStyle.MarkerBullet
&& dnList.FormatState.Marker != MarkerStyle.MarkerNone)
{
_rtfBuilder.Append(".");
}
_rtfBuilder.Append("\\tab}{\\*\\pn");
_rtfBuilder.Append(Converters.MarkerStyleToOldRTFString(dnList.FormatState.Marker));
if (fsThis.ListLevel > 0 && dnList.FormatState.PNLVL > 1)
{
_rtfBuilder.Append("\\pnlvl");
_rtfBuilder.Append(fsThis.ListLevel.ToString(CultureInfo.InvariantCulture));
}
if (fsThis.FI > 0)
{
_rtfBuilder.Append("\\pnhang");
}
if (fsThis.StartIndex >= 0)
{
_rtfBuilder.Append("\\pnstart");
_rtfBuilder.Append(fsThis.StartIndex.ToString(CultureInfo.InvariantCulture));
}
if (dnList.FormatState.Marker == MarkerStyle.MarkerBullet)
{
_rtfBuilder.Append("{\\pntxtb\\'B7}}");
}
else if (dnList.FormatState.Marker == MarkerStyle.MarkerNone)
{
_rtfBuilder.Append("{\\pntxta }{\\pntxtb }}");
}
else
{
_rtfBuilder.Append("{\\pntxta .}}");
}
// Already terminated with curly, no need for extra space.
bOutControl = false;
}
}
}
return bOutControl;
}
private void WriteParagraph(DocumentNode dnThis)
{
int nStart = dnThis.Index + 1;
int nEnd = dnThis.Index + dnThis.ChildCount;
int nAt;
FormatState fsThis = dnThis.FormatState;
FormatState fsParent = dnThis.Parent != null ? dnThis.Parent.FormatState : FormatState.EmptyFormatState;
DocumentNodeArray dna = _converterState.DocumentNodeArray;
_rtfBuilder.Append("{");
bool bOutControl = WriteParagraphFontInfo(dnThis, fsThis, fsParent);
// Structure properties
// NB: RE 4.01 seems to require \intbl keyword to come before inline content
if (fsThis.IsInTable)
{
_rtfBuilder.Append("\\intbl");
bOutControl = true;
}
if (bOutControl)
{
_rtfBuilder.Append(" ");
}
bOutControl = WriteParagraphListInfo(dnThis, fsThis);
if (bOutControl)
{
_rtfBuilder.Append(" ");
}
// FlowDirection control - state it before writing nested inline node.
// MsWord expect "rtlpar" control before writing inline, but Wordpad
// doesn't matter state it before or after of inline writing.
if (fsThis.DirPara == DirState.DirRTL)
{
_rtfBuilder.Append("\\rtlpar");
}
// OK, now write out the inline children.
for (nAt = nStart; nAt <= nEnd; nAt++)
{
DocumentNode dnChild = dna.EntryAt(nAt);
// Ignore non-direct children - they get written out by their parent
if (dnChild.Parent == dnThis)
{
WriteInlineChild(dnChild);
}
}
// Structure properties
if (fsThis.ITAP > 1)
{
_rtfBuilder.Append("\\itap");
_rtfBuilder.Append(fsThis.ITAP.ToString(CultureInfo.InvariantCulture));
}
// Margins
_rtfBuilder.Append("\\li");
_rtfBuilder.Append(fsThis.LI.ToString(CultureInfo.InvariantCulture));
_rtfBuilder.Append("\\ri");
_rtfBuilder.Append(fsThis.RI.ToString(CultureInfo.InvariantCulture));
_rtfBuilder.Append("\\sa");
_rtfBuilder.Append(fsThis.SA.ToString(CultureInfo.InvariantCulture));
_rtfBuilder.Append("\\sb");
_rtfBuilder.Append(fsThis.SB.ToString(CultureInfo.InvariantCulture));
// Borders
if (fsThis.HasParaBorder)
{
_rtfBuilder.Append(fsThis.ParaBorder.RTFEncoding);
}
// TextIndent
if (dnThis.ListLabel != null)
{
_rtfBuilder.Append("\\jclisttab\\tx");
_rtfBuilder.Append(fsThis.LI.ToString(CultureInfo.InvariantCulture));
_rtfBuilder.Append("\\fi-360");
}
else
{
_rtfBuilder.Append("\\fi");
_rtfBuilder.Append(fsThis.FI.ToString(CultureInfo.InvariantCulture));
}
// Alignment
switch (fsThis.HAlign)
{
case HAlign.AlignLeft:
if (fsThis.DirPara != DirState.DirRTL)
{
_rtfBuilder.Append("\\ql");
}
else
{
_rtfBuilder.Append("\\qr");
}
break;
case HAlign.AlignRight:
if (fsThis.DirPara != DirState.DirRTL)
{
_rtfBuilder.Append("\\qr");
}
else
{
_rtfBuilder.Append("\\ql");
}
break;
case HAlign.AlignCenter:
_rtfBuilder.Append("\\qc");
break;
case HAlign.AlignJustify:
_rtfBuilder.Append("\\qj");
break;
}
// Background color
if (fsThis.CBPara >= 0)
{
_rtfBuilder.Append("\\cbpat");
_rtfBuilder.Append(fsThis.CBPara.ToString(CultureInfo.InvariantCulture));
}
// LineHeight
if (fsThis.SL != 0)
{
_rtfBuilder.Append("\\sl");
_rtfBuilder.Append(fsThis.SL.ToString(CultureInfo.InvariantCulture));
_rtfBuilder.Append("\\slmult0");
}
// omit \par if last paragraph in cell
if (dnThis.IsLastParagraphInCell())
{
DocumentNode dnCell = dnThis.GetParentOfType(DocumentNodeType.dnCell);
dnCell.IsTerminated = true;
if (fsThis.ITAP > 1)
{
_rtfBuilder.Append("\\nestcell");
_rtfBuilder.Append("{\\nonesttables\\par}");
}
else
{
_rtfBuilder.Append("\\cell");
}
_rtfBuilder.Append("\r\n");
}
else
{
_rtfBuilder.Append("\\par");
}
_rtfBuilder.Append("}");
_rtfBuilder.Append("\r\n");
}