/// <summary>
/// Breaks the specified field value into lines that
/// do not exceeding the field width, and aligns the text
/// on each line according to the specified alignment rules.
/// </summary>
private static Queue <string> MakeFieldLines(
string text,
FieldRule fieldRule)
{
List <string> resultingLines = new List <string>();
// Account for top padding
// -
resultingLines.AddRange(
Enumerable.Repeat(EmptyLine(fieldRule), fieldRule.PaddingTop));
if (fieldRule.LineBreaking == LineBreaking.Anywhere)
{
resultingLines.AddRange(text
.Split(fieldRule.Width)
.Select(characters => new string(characters.ToArray())));
}
else if (fieldRule.LineBreaking == LineBreaking.Whitespace)
{
resultingLines.AddRange(text.MakeLinesByWhitespace(fieldRule.Width));
}
// Account for bottom padding
// -
resultingLines.AddRange(
Enumerable.Repeat(EmptyLine(fieldRule), fieldRule.PaddingBottom));
return(new Queue <string>(resultingLines.Select(line =>
{
// Account for alignment
// -
if (fieldRule.Align == Align.Left)
{
return line.PadRight(fieldRule.Width);
}
else if (fieldRule.Align == Align.Right)
{
return line.PadLeft(fieldRule.Width);
}
else if (fieldRule.Align == Align.Center)
{
int remainingSpace = fieldRule.Width - line.Length;
return
" ".Replicate(remainingSpace / 2) +
line +
" ".Replicate((remainingSpace + 1) / 2);
}
else
{
throw new Exception();
}
}).Select(line =>
{
// Account for left and right padding
// -
return line
.PadLeft(fieldRule.Width + fieldRule.PaddingLeft)
.PadRight(fieldRule.FullWidth);
})));
}
/// <summary>
/// Gets an empty line with whose width
/// is equal to the provided field rule's
/// width (excluding any left or right padding).
/// </summary>
private static string EmptyLine(FieldRule fieldRule)
{
return(" ".Replicate(fieldRule.Width));
}
