// the computed bsize for the cell, which descendants use for percent bsize calculations
// it is the bsize (minus border, padding) of the cell's first in flow during its final
// reflow without an unconstrained bsize.
static nscoord
CalcUnpaginatedBSize(nsPresContext*     aPresContext,
                      nsTableCellFrame& aCellFrame,
                      nsTableFrame&     aTableFrame,
                      nscoord           aBlockDirBorderPadding)
{
  const nsTableCellFrame* firstCellInFlow =
    static_cast<nsTableCellFrame*>(aCellFrame.FirstInFlow());
  nsTableFrame* firstTableInFlow  =
    static_cast<nsTableFrame*>(aTableFrame.FirstInFlow());
  nsTableRowFrame* row =
    static_cast<nsTableRowFrame*>(firstCellInFlow->GetParent());
  nsTableRowGroupFrame* firstRGInFlow =
    static_cast<nsTableRowGroupFrame*>(row->GetParent());

  int32_t rowIndex;
  firstCellInFlow->GetRowIndex(rowIndex);
  int32_t rowSpan = aTableFrame.GetEffectiveRowSpan(*firstCellInFlow);

  nscoord computedBSize = firstTableInFlow->GetRowSpacing(rowIndex,
                                                          rowIndex + rowSpan - 1);
  computedBSize -= aBlockDirBorderPadding;
  int32_t rowX;
  for (row = firstRGInFlow->GetFirstRow(), rowX = 0; row; row = row->GetNextRow(), rowX++) {
    if (rowX > rowIndex + rowSpan - 1) {
      break;
    }
    else if (rowX >= rowIndex) {
      computedBSize += row->GetUnpaginatedBSize(aPresContext);
    }
  }
  return computedBSize;
}
// the computed height for the cell, which descendants use for percent height calculations
// it is the height (minus border, padding) of the cell's first in flow during its final
// reflow without an unconstrained height.
static nscoord
CalcUnpaginagedHeight(nsPresContext*        aPresContext,
                      nsTableCellFrame&     aCellFrame,
                      nsTableFrame&         aTableFrame,
                      nscoord               aVerticalBorderPadding)
{
  const nsTableCellFrame* firstCellInFlow =
    static_cast<nsTableCellFrame*>(aCellFrame.FirstInFlow());
  nsTableFrame* firstTableInFlow  =
    static_cast<nsTableFrame*>(aTableFrame.FirstInFlow());
  nsTableRowFrame* row =
    static_cast<nsTableRowFrame*>(firstCellInFlow->GetParent());
  nsTableRowGroupFrame* firstRGInFlow =
    static_cast<nsTableRowGroupFrame*>(row->GetParent());

  int32_t rowIndex;
  firstCellInFlow->GetRowIndex(rowIndex);
  int32_t rowSpan = aTableFrame.GetEffectiveRowSpan(*firstCellInFlow);
  nscoord cellSpacing = firstTableInFlow->GetCellSpacingX();

  nscoord computedHeight = ((rowSpan - 1) * cellSpacing) - aVerticalBorderPadding;
  int32_t rowX;
  for (row = firstRGInFlow->GetFirstRow(), rowX = 0; row; row = row->GetNextRow(), rowX++) {
    if (rowX > rowIndex + rowSpan - 1) {
      break;
    }
    else if (rowX >= rowIndex) {
      computedHeight += row->GetUnpaginatedHeight(aPresContext);
    }
  }
  return computedHeight;
}