/// <summary>
/// Adds a column to the schema, using the given definition to define it.
/// </summary>
/// <param name="definition">The definition of the column to add.</param>
/// <param name="window">Describes the column</param>
/// <returns>The current schema.</returns>
public FixedLengthSchema AddColumn(IColumnDefinition definition, Window window)
{
if (window == null)
{
throw new ArgumentNullException("window");
}
AddColumnBase(definition);
windows.Add(window);
totalWidth += window.Width;
return this;
}
private string fitWidth(Window window, string value)
{
if (value == null)
{
value = String.Empty;
}
if (value.Length > window.Width)
{
return getTruncatedValue(value, window);
}
else if (value.Length < window.Width)
{
return getPaddedValue(value, window);
}
else
{
return value;
}
}
private string getTruncatedValue(string value, Window window)
{
OverflowTruncationPolicy policy = window.TruncationPolicy ?? options.TruncationPolicy;
if (policy == OverflowTruncationPolicy.TruncateLeading)
{
int start = value.Length - window.Width; // take characters on the end
return value.Substring(start, window.Width);
}
else
{
return value.Substring(0, window.Width);
}
}
private string getPaddedValue(string value, Window window)
{
if (window.Alignment == FixedAlignment.LeftAligned)
{
return value.PadRight(window.Width, window.FillCharacter ?? options.FillCharacter);
}
else
{
return value.PadLeft(window.Width, window.FillCharacter ?? options.FillCharacter);
}
}