Innovenergy_trunk/csharp/Lib/Utils/TextBlock.cs

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namespace InnovEnergy.Lib.Utils;
public class TextBlock
{
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private readonly IReadOnlyList<String> _Lines;
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private TextBlock(params String[] lines) => _Lines = lines;
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public override String ToString() => _Lines.JoinLines();
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public static TextBlock Empty { get; } = new TextBlock();
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public static TextBlock AlignLeft(IEnumerable<Object> things)
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{
var lines = things
.SelectMany(GetLines)
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.Unless(String.IsNullOrEmpty)
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.ToList();
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if (!lines.Any())
return Empty;
var width = lines.Max(l => l.Length);
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var alignedLines = lines
.Select(l => l.PadRight(width))
.ToArray(lines.Count);
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return new TextBlock(alignedLines);
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}
private static TextBlock AlignRight(IReadOnlyList<Object> things)
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{
var lines = things
.SelectMany(GetLines)
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.Unless(String.IsNullOrEmpty)
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.ToList();
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if (!lines.Any())
return Empty;
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var width = lines.Max(l => l.Length);
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var alignedLines = lines
.Select(l => l.PadLeft(width))
.ToArray(lines.Count);
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return new TextBlock(alignedLines);
}
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public static TextBlock AlignCenterHorizontal(IReadOnlyList<Object> things)
{
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var lines = things
.SelectMany(GetLines)
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.Where(l => !String.IsNullOrEmpty(l))
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.ToList();
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if (!lines.Any())
return Empty;
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var width = lines.Max(l => l.Length);
var alignedLines = lines
.Select(l => l.PadLeft((width + l.Length) / 2).PadRight(width))
.ToArray(lines.Count);
return new TextBlock(alignedLines);
}
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public static TextBlock AlignTop(IReadOnlyList<Object> things)
{
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var columns = things
.Select(GetLines)
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.Where(c => c.Count > 0)
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.ToList();
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if (!columns.Any())
return Empty;
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var height = columns.Max(l => l.Count);
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var alignedLines = Enumerable
.Range(0, height)
.Select(l => columns.Select(c => c.ElementAtOr(l, Space(c[0].Length))).Join())
.ToArray(height);
return new TextBlock(alignedLines);
}
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public static TextBlock AlignBottom(IReadOnlyList<Object> things)
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{
var columns = things
.Select(GetLines)
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.Where(c => c.Count > 0)
.ToList();
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if (!columns.Any())
return Empty;
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var height = columns.Max(l => l.Count);
var alignedLines = Enumerable
.Range(0, height)
.Select(l => columns.Select(c => c.ElementAtOr(c.Count - height + l, Space(c[0].Length))).Join())
.ToArray(height);
return new TextBlock(alignedLines);
}
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public static TextBlock AlignCenterVertical(IReadOnlyList<Object> things)
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{
var columns = things
.Select(GetLines)
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.Where(c => c.Count > 0)
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.ToList();
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if (!columns.Any())
return Empty;
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var height = columns.Max(l => l.Count);
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var alignedLines = Enumerable
.Range(0, height)
.Select(l => columns.Select(c => c.ElementAtOr((c.Count - height) / 2 + l, Space(c[0].Length))).Join())
.ToArray(height);
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return new TextBlock(alignedLines);
}
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public static TextBlock AlignLeft (params Object?[] things) => AlignLeft ((IReadOnlyList<Object>) things);
public static TextBlock AlignRight (params Object?[] things) => AlignRight ((IReadOnlyList<Object>) things);
public static TextBlock AlignTop (params Object?[] things) => AlignTop ((IReadOnlyList<Object>) things);
public static TextBlock AlignBottom (params Object?[] things) => AlignBottom ((IReadOnlyList<Object>) things);
public static TextBlock AlignCenterVertical (params Object?[] things) => AlignCenterVertical ((IReadOnlyList<Object>) things);
public static TextBlock AlignCenterHorizontal(params Object?[] things) => AlignCenterHorizontal((IReadOnlyList<Object>) things);
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public static TextBlock FromString(String thing) => AlignLeft(thing);
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public TextBlock Box()
{
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var width = _Lines.Any() ? _Lines.Max(l => l.Length) : 0;
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var hLine = "".PadRight(width + 2, '─');
var top = "┌" + hLine + "┐";
var bottom = "└" + hLine + "┘";
var lines = _Lines
.Select(l => l.SurroundWith(" "))
.Select(l => l.SurroundWith("│"))
.Prepend(top)
.Append(bottom)
.ToArray(_Lines.Count + 2);
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return new TextBlock(lines);
}
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public TextBlock TitleBox(String title)
{
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var linesWidth = _Lines.Any() ? _Lines.Max(l => l.Length) : 0;
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var titleWidth = title.Length;
var width = Math.Max(linesWidth, titleWidth);
var hLine = "".PadRight(width + 2, '─');
var top = "┌" + hLine + "┐";
var between = "├" + hLine + "┤";
var bottom = "└" + hLine + "┘";
var centeredTitle = "│ " + title.PadLeft((width + title.Length) / 2).PadRight(width) + " │";
var lines = _Lines
.Select(l => l.PadRight(width))
.Select(l => l.SurroundWith(" "))
.Select(l => l.SurroundWith("│"))
.Prepend(between)
.Prepend(centeredTitle)
.Prepend(top)
.Append(bottom)
.ToArray();
return new TextBlock(lines);
}
public static TextBlock Spacer(Int32 n)
{
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return new TextBlock(Enumerable.Repeat("".PadRight(n), n).ToArray(n));
}
public static TextBlock HorizontalSpace(Int32 n)
{
return new TextBlock("".PadRight(n));
}
public static TextBlock VerticalSpace(Int32 n)
{
return new TextBlock(Enumerable.Repeat("", n).ToArray(n));
}
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private static IReadOnlyList<String> GetLines(Object? t)
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{
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return t switch
{
TextBlock tb => tb._Lines,
null => Array.Empty<String>(),
_ => t.ToString()!.SplitLines()
};
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}
private static String Space(Int32 totalWidth)
{
return "".PadRight(totalWidth);
}
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}