public void WriteColumnDefinition(string width, double minWidth, double maxWidth)
{
GridLength gridLength = GridLength.Auto;
width = width.Trim();
if (string.Compare(width, "auto", StringComparison.OrdinalIgnoreCase) == 0)
{
tableWidth += 100; // give this column a minimum size at least
gridLength = new GridLength(0, GridUnitType.Auto);
}
else if (width == "*")
{
tableWidth += 100; // give this column a minimum size at least
gridLength = new GridLength(0, GridUnitType.Star);
}
else
{
double w;
if (double.TryParse(width, out w))
{
tableWidth += w;
gridLength = new GridLength(w);
}
else
{
throw new ArgumentException("width should be 'auto', '*', or a valid number", "width");
}
}
var ext = new ColumnWidthExtensions()
{
MinWidth = minWidth, MaxWidth = maxWidth
};
current.table.Columns.Add(new TableColumn()
{
Width = gridLength, Tag = ext
});
}
private void FixAutoColumns(Table table)
{
// 'Auto' sized columns in FlowDocument tables suck.
// This code fixes that.
Brush brush = Brushes.Black;
List <TableColumn> columns = new List <TableColumn>(current.table.Columns);
if (columns.Count == 0)
{
return;
}
List <double> maxWidths = new List <double>();
for (int i = 0; i < columns.Count; i++)
{
maxWidths.Add(0);
}
foreach (var group in current.table.RowGroups)
{
foreach (var row in group.Rows)
{
int i = 0;
foreach (var cell in row.Cells)
{
if (columns[i].Width.IsAuto)
{
foreach (var block in cell.Blocks)
{
if (block is Table)
{
// can't measure these ones.
return;
}
TextRange range = new TextRange(block.ContentStart, block.ContentEnd);
string text = range.Text;
if (!string.IsNullOrEmpty(text))
{
Typeface tface = new Typeface(block.FontFamily, block.FontStyle, block.FontWeight, block.FontStretch);
FormattedText ft = new FormattedText(text, System.Globalization.CultureInfo.CurrentUICulture, FlowDirection.LeftToRight, tface, block.FontSize, brush, this.pixelsPerDip);
maxWidths[i] = Math.Max(maxWidths[i], ft.Width + cell.Padding.Left + cell.Padding.Right);
}
}
}
i += cell.ColumnSpan;
}
}
}
// fixup 'auto' columns so they have the right width
int j = 0;
foreach (var col in current.table.Columns)
{
ColumnWidthExtensions ext = col.Tag as ColumnWidthExtensions;
if (col.Width.IsAuto && ext != null && ext.MinWidth > 0)
{
double w = Math.Max(ext.MinWidth, maxWidths[j] + 10);
w = Math.Min(w, ext.MaxWidth);
col.Width = new GridLength(w);
}
j++;
}
}
