private string RenderContentRow(Row row, IList <Column> columns)
{
var sb = new StringBuilder();
// Left border
if (_shownBorders.IsLeftBorderVisible)
{
sb.Append(BorderStyle.Left);
}
// Cells
var totalColumns = columns.Count;
var j = 0;
foreach (Cell cell in row.Cells)
{
// cell separator
if (j != 0)
{
if ((j > 1 && j < totalColumns - 1) &&
_shownBorders.IsCenterSeparatorVisible ||
((j == 1) && (_shownBorders.IsLeftSeparatorVisible)) ||
((j == (totalColumns - 1)) && (_shownBorders.IsRightSeparatorVisible)))
{
sb.Append(BorderStyle.Center);
}
}
// Cell content
var sepWidth = BorderStyle.Center.Length;
var width = -sepWidth;
for (var pos = j; pos < j + cell.ColumnSpan; pos++)
{
width = width + sepWidth + columns[pos].Width;
}
var renderedCell = cell.Render(width);
sb.Append(renderedCell);
j = j + cell.ColumnSpan;
}
// Render missing cells
for (; j < totalColumns; j++)
{
// cell separator
if (j != 0)
{
if ((j > 1 && j < totalColumns - 1) &&
_shownBorders.IsCenterSeparatorVisible ||
((j == 1) && (_shownBorders.IsLeftSeparatorVisible)) ||
((j == (totalColumns - 1)) && (_shownBorders.IsRightSeparatorVisible)))
{
sb.Append(BorderStyle.Center);
}
}
// Cell content
var col = columns[j];
var renderedCell = CellStyle.RenderNullCell(col.Width);
sb.Append(renderedCell);
}
// Right border
if (_shownBorders.IsRightBorderVisible)
{
sb.Append(BorderStyle.Right);
}
return(sb.ToString());
}