Innovenergy_trunk/csharp/lib/Utils/TextBlock.cs

67 lines
2.2 KiB
C#

namespace InnovEnergy.Lib.Utils;
public class TextBlock
{
public static TextBlock Empty { get; } = new TextBlock(Array.Empty<String>());
public IReadOnlyList<String> Lines { get; }
public Int32 Width => Lines.FirstOrDefault()?.Length ?? 0;
public Int32 Height => Lines.Count;
private TextBlock(IReadOnlyList<String> lines) => Lines = lines;
public static TextBlock AlignLeft (params Object[] lines) => AlignHorizontal((l, w) => l.PadRight(w), lines);
public static TextBlock AlignRight(params Object[] lines) => AlignHorizontal((l, w) => l.PadLeft(w), lines);
public static TextBlock AlignHCenter(params Object[] lines) => AlignHorizontal((l,w) => l.PadLeft((w + l.Length) / 2).PadRight(w), lines);
// public static TextBlock AlignTop(params Object[] columns)
// {
// if (!columns.Any())
// return Empty;
//
// var cs = columns.Select(GetLines).ToArray(columns.Length);
// var ws = cs.Select(c => c.Count).ToArray(cs.Length);
//
//
//
//
// }
public static TextBlock HSpace(Int32 width) => new TextBlock(new []{"".PadRight(width)});
public static TextBlock VSpace(Int32 height) => new TextBlock(Enumerable.Repeat("", height).ToArray(height));
public static TextBlock Space(Int32 width, Int32 height)
{
return new TextBlock(Enumerable.Repeat("".PadRight(width), height).ToArray(height));
}
private static TextBlock AlignHorizontal(Func<String, Int32, String> alignLine, Object[] lines)
{
if (!lines.Any())
return Empty;
var strings = lines
.SelectMany(GetLines)
.ToList();
var width = strings.Max(l => l.Length);
var aligned = strings
.Select(l => alignLine(l, width))
.ToArray(strings.Count);
return new TextBlock(aligned);
}
private static IReadOnlyList<String> GetLines(Object l)
{
return l is TextBlock tb
? tb.Lines
: l.ToString()?.SplitLines() ?? new[] { "<null>" };
}
public override String ToString() => String.Join(Environment.NewLine, Lines);
}