예제 #1
0
        /**
         * Splits a row to newHeight.
         * The returned row is the remainder. It will return null if the newHeight
         * was so small that only an empty row would result.
         *
         * @param new_height the new height
         * @return the remainder row or null if the newHeight was so small that only
         * an empty row would result
         */
        public PdfPRow SplitRow(PdfPTable table, int rowIndex, float new_height)
        {
            PdfPCell[] newCells = new PdfPCell[cells.Length];
            float[]    fixHs    = new float[cells.Length];
            float[]    minHs    = new float[cells.Length];
            bool       allEmpty = true;

            for (int k = 0; k < cells.Length; ++k)
            {
                float    newHeight = new_height;
                PdfPCell cell      = cells[k];
                if (cell == null)
                {
                    int index = rowIndex;
                    if (table.RowSpanAbove(index, k))
                    {
                        newHeight += table.GetRowHeight(index);
                        while (table.RowSpanAbove(--index, k))
                        {
                            newHeight += table.GetRowHeight(index);
                        }
                        PdfPRow row = table.GetRow(index);
                        if (row != null && row.GetCells()[k] != null)
                        {
                            newCells[k] = new PdfPCell(row.GetCells()[k]);
                            newCells[k].ConsumeHeight(newHeight);
                            newCells[k].Rowspan = row.GetCells()[k].Rowspan - rowIndex + index;
                            allEmpty            = false;
                        }
                    }
                    continue;
                }
                fixHs[k] = cell.FixedHeight;
                minHs[k] = cell.MinimumHeight;
                Image    img     = cell.Image;
                PdfPCell newCell = new PdfPCell(cell);
                if (img != null)
                {
                    if (newHeight > cell.EffectivePaddingBottom + cell.EffectivePaddingTop + 2)
                    {
                        newCell.Phrase = null;
                        allEmpty       = false;
                    }
                }
                else
                {
                    float      y;
                    ColumnText ct     = ColumnText.Duplicate(cell.Column);
                    float      left   = cell.Left + cell.EffectivePaddingLeft;
                    float      bottom = cell.Top + cell.EffectivePaddingBottom - newHeight;
                    float      right  = cell.Right - cell.EffectivePaddingRight;
                    float      top    = cell.Top - cell.EffectivePaddingTop;
                    switch (cell.Rotation)
                    {
                    case 90:
                    case 270:
                        y = SetColumn(ct, bottom, left, top, right);
                        break;

                    default:
                        y = SetColumn(ct, left, bottom, cell.NoWrap ? RIGHT_LIMIT : right, top);
                        break;
                    }
                    int status;
                    status = ct.Go(true);
                    bool thisEmpty = (ct.YLine == y);
                    if (thisEmpty)
                    {
                        newCell.Column = ColumnText.Duplicate(cell.Column);
                        ct.FilledWidth = 0;
                    }
                    else if ((status & ColumnText.NO_MORE_TEXT) == 0)
                    {
                        newCell.Column = ct;
                        ct.FilledWidth = 0;
                    }
                    else
                    {
                        newCell.Phrase = null;
                    }
                    allEmpty = (allEmpty && thisEmpty);
                }
                newCells[k]      = newCell;
                cell.FixedHeight = newHeight;
            }
            if (allEmpty)
            {
                for (int k = 0; k < cells.Length; ++k)
                {
                    PdfPCell cell = cells[k];
                    if (cell == null)
                    {
                        continue;
                    }
                    if (fixHs[k] > 0)
                    {
                        cell.FixedHeight = fixHs[k];
                    }
                    else
                    {
                        cell.MinimumHeight = minHs[k];
                    }
                }
                return(null);
            }
            CalculateHeights();
            PdfPRow split = new PdfPRow(newCells);

            split.widths = (float[])widths.Clone();
            split.CalculateHeights();
            return(split);
        }