private static IEnumerable <Segment> RenderAnnotation(TableRendererContext context, TableTitle?header, Style defaultStyle)
{
if (header == null)
{
return(Array.Empty <Segment>());
}
var paragraph = new Markup(header.Text, header.Style ?? defaultStyle)
.Alignment(Justify.Center)
.Overflow(Overflow.Ellipsis);
// Render the paragraphs
var segments = new List <Segment>();
segments.AddRange(((IRenderable)paragraph).Render(context.Options, context.TableWidth));
// Align over the whole buffer area
Aligner.Align(segments, context.Alignment, context.MaxWidth);
segments.Add(Segment.LineBreak);
return(segments);
}
public static List <Segment> Render(TableRendererContext context, List <int> columnWidths)
{
// Can't render the table?
if (context.TableWidth <= 0 || context.TableWidth > context.MaxWidth || columnWidths.Any(c => c <= 0))
{
return(new List <Segment>(new[] { new Segment("…", context.BorderStyle ?? Style.Plain) }));
}
var result = new List <Segment>();
result.AddRange(RenderAnnotation(context, context.Title, _defaultHeadingStyle));
// Iterate all rows
foreach (var(index, isFirstRow, isLastRow, row) in context.Rows.Enumerate())
{
var cellHeight = 1;
// Get the list of cells for the row and calculate the cell height
var cells = new List <List <SegmentLine> >();
foreach (var(columnIndex, _, _, (rowWidth, cell)) in columnWidths.Zip(row).Enumerate())
{
var justification = context.Columns[columnIndex].Alignment;
var childContext = context.Options.WithJustification(justification);
var lines = Segment.SplitLines(cell.Render(childContext, rowWidth));
cellHeight = Math.Max(cellHeight, lines.Count);
cells.Add(lines);
}
// Show top of header?
if (isFirstRow && context.ShowBorder)
{
var separator = Aligner.Align(context.Border.GetColumnRow(TablePart.Top, columnWidths, context.Columns), context.Alignment, context.MaxWidth);
result.Add(new Segment(separator, context.BorderStyle));
result.Add(Segment.LineBreak);
}
// Show footer separator?
if (context.ShowFooters && isLastRow && context.ShowBorder && context.HasFooters)
{
var textBorder = context.Border.GetColumnRow(TablePart.FooterSeparator, columnWidths, context.Columns);
if (!string.IsNullOrEmpty(textBorder))
{
var separator = Aligner.Align(textBorder, context.Alignment, context.MaxWidth);
result.Add(new Segment(separator, context.BorderStyle));
result.Add(Segment.LineBreak);
}
}
// Make cells the same shape
cells = Segment.MakeSameHeight(cellHeight, cells);
// Iterate through each cell row
foreach (var cellRowIndex in Enumerable.Range(0, cellHeight))
{
var rowResult = new List <Segment>();
foreach (var(cellIndex, isFirstCell, isLastCell, cell) in cells.Enumerate())
{
if (isFirstCell && context.ShowBorder)
{
// Show left column edge
var part = isFirstRow && context.ShowHeaders ? TableBorderPart.HeaderLeft : TableBorderPart.CellLeft;
rowResult.Add(new Segment(context.Border.GetPart(part), context.BorderStyle));
}
// Pad column on left side.
if (context.ShowBorder || context.IsGrid)
{
var leftPadding = context.Columns[cellIndex].Padding.GetLeftSafe();
if (leftPadding > 0)
{
rowResult.Add(new Segment(new string(' ', leftPadding)));
}
}
// Add content
rowResult.AddRange(cell[cellRowIndex]);
// Pad cell content right
var length = cell[cellRowIndex].Sum(segment => segment.CellCount());
if (length < columnWidths[cellIndex])
{
rowResult.Add(new Segment(new string(' ', columnWidths[cellIndex] - length)));
}
// Pad column on the right side
if (context.ShowBorder || (context.HideBorder && !isLastCell) || (context.HideBorder && isLastCell && context.IsGrid && context.PadRightCell))
{
var rightPadding = context.Columns[cellIndex].Padding.GetRightSafe();
if (rightPadding > 0)
{
rowResult.Add(new Segment(new string(' ', rightPadding)));
}
}
if (isLastCell && context.ShowBorder)
{
// Add right column edge
var part = isFirstRow && context.ShowHeaders ? TableBorderPart.HeaderRight : TableBorderPart.CellRight;
rowResult.Add(new Segment(context.Border.GetPart(part), context.BorderStyle));
}
else if (context.ShowBorder)
{
// Add column separator
var part = isFirstRow && context.ShowHeaders ? TableBorderPart.HeaderSeparator : TableBorderPart.CellSeparator;
rowResult.Add(new Segment(context.Border.GetPart(part), context.BorderStyle));
}
}
// Align the row result.
Aligner.Align(rowResult, context.Alignment, context.MaxWidth);
// Is the row larger than the allowed max width?
if (Segment.CellCount(rowResult) > context.MaxWidth)
{
result.AddRange(Segment.Truncate(rowResult, context.MaxWidth));
}
else
{
result.AddRange(rowResult);
}
result.Add(Segment.LineBreak);
}
// Show header separator?
if (isFirstRow && context.ShowBorder && context.ShowHeaders && context.HasRows)
{
var separator = Aligner.Align(context.Border.GetColumnRow(TablePart.HeaderSeparator, columnWidths, context.Columns), context.Alignment, context.MaxWidth);
result.Add(new Segment(separator, context.BorderStyle));
result.Add(Segment.LineBreak);
}
// Show bottom of footer?
if (isLastRow && context.ShowBorder)
{
var separator = Aligner.Align(context.Border.GetColumnRow(TablePart.Bottom, columnWidths, context.Columns), context.Alignment, context.MaxWidth);
result.Add(new Segment(separator, context.BorderStyle));
result.Add(Segment.LineBreak);
}
}
result.AddRange(RenderAnnotation(context, context.Caption, _defaultCaptionStyle));
return(result);
}
