/// <summary>
/// Determine Row and Column Count, and ColumnWidths
/// </summary>
/// <returns></returns>
float S3_CalculateCountAndWidth(List<CssBox> userDefinedColumnBoxes)
{
//-----------------------------------------------------------
//1. count columns
int columnCount = 0;
if (userDefinedColumnBoxes.Count > 0)
{
//mode 1: user defined columns
columnCount = userDefinedColumnBoxes.Count;
}
else
{ //mode 2: anonymous column definitions,
int cellcount = 0;
//find max column count in the table
//each row may contain different number of cell
for (int i = _allRowBoxes.Count - 1; i >= 0; --i)
{
if ((cellcount = _allRowBoxes[i].ChildCount) > columnCount)
{
columnCount = cellcount;
}
}
}
//-------------------------------------------------------------
//2. create column collection
this.columnCollection = new TableColumnCollection(columnCount);
float availbleWidthForAllCells = GetAvailableTableWidth() - (GetHorizontalSpacing(_tableBox) * (columnCount + 1)) - _tableBox.ActualBorderLeftWidth - _tableBox.ActualBorderRightWidth;
//-------------------------------------------------------------
//3.
if (userDefinedColumnBoxes.Count > 0)
{
//mode 1: user defined columns
// Fill ColumnWidths array by scanning column widths
for (int i = userDefinedColumnBoxes.Count - 1; i >= 0; --i)
{
CssLength colWidth = userDefinedColumnBoxes[i].Width; //Get specified width
if (colWidth.Number > 0) //If some width specified
{
switch (colWidth.UnitOrNames)
{
case CssUnitOrNames.Percent:
{
return (colWidth.Number / 100) * availbleWidthForAllCells;
}
case CssUnitOrNames.Pixels:
case CssUnitOrNames.EmptyValue:
{
//Get width as an absolute-pixel value
columnCollection.SetColumnWidth(i, colWidth.Number);
}
break;
}
}
}
}
else
{
//mode 2: anonymous column definitions,
// Fill ColumnWidths array by scanning width in table-cell definitions
var tmpRows = this._allRowBoxes;
int rowCount = tmpRows.Count;
for (int rr = 0; rr < rowCount; ++rr)
{
CssBox row = tmpRows[rr];
//Check for column width in table-cell definitions
int col_limit = columnCount > MAX_COL_AT_THIS_VERSION ? MAX_COL_AT_THIS_VERSION : columnCount;
var cnode = row.GetFirstChild();
int i = 0;
while (cnode != null)
{
if (!columnCollection[i].HasSpecificWidth)
{
if (i < row.ChildCount)
{
var childBox = cnode;
if (childBox.CssDisplay == CssDisplay.TableCell)
{
CssLength cellWidth = childBox.Width;
if (cellWidth.IsAuto)
{
//auto width - always 0
}
else
{
float cellBoxWidth = CssValueParser.ConvertToPx(childBox.Width, availbleWidthForAllCells, childBox);
if (cellBoxWidth > 0) //If some width specified
{
int colspan = childBox.ColSpan;
cellBoxWidth /= colspan;
for (int n = i; n < i + colspan; n++)
{
columnCollection[n].S3_UpdateIfWider(cellBoxWidth, ColumnSpecificWidthLevel.FromCellConstraint);
}
}
}
}
}
}
//--------------------------
cnode = cnode.GetNextNode();
i++;
if (i >= col_limit)
{
break;
}
}
}
}
return availbleWidthForAllCells;
}
