new implementation of TextBlock

csharp/App/SaliMax/src/Flow.cs

@@ -1,4 +1,45 @@
-// using InnovEnergy.Lib.Utils;
+using System.Diagnostics.CodeAnalysis;
+using InnovEnergy.Lib.Units;
+using InnovEnergy.Lib.Utils;
+
+
+
+namespace InnovEnergy.App.SaliMax;
+
+public static class Flow
+{
+    private static readonly String RightArrowChar = ">";
+    private static readonly String LeftArrowChar  = "<";
+    private static readonly String DownArrowChar  = "V";
+    private static readonly String UpArrowChar    = "^";
+
+    public static TextBlock Horizontal(Unit amount, Int32 width = 10)
+    {
+        var label     = amount.ToString();
+        var arrowChar = amount.Value < 0 ? LeftArrowChar : RightArrowChar;
+        var arrow     = Enumerable.Repeat(arrowChar, width).Join();
+
+        // note : appending "fake label" below to make it vertically symmetric
+        return TextBlock.CenterHorizontal(label, arrow, ""); 
+    }
+    
+    [SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
+    [SuppressMessage("ReSharper", "CoVariantArrayConversion")]
+    public static TextBlock Vertical(Unit amount, Int32 height = 8)
+    {
+        var label     = amount.ToString();
+        var arrowChar = amount.Value < 0 ? UpArrowChar : DownArrowChar;
+        var halfArrow = Enumerable.Repeat(arrowChar, height/2);
+        
+        var lines = halfArrow
+            .Append(label)
+            .Concat(halfArrow)
+            .ToArray(height / 2 * 2 + 1);
+        
+        return TextBlock.CenterHorizontal(lines);
+    }
+}
+
 //
 // namespace InnovEnergy.App.SaliMax;
 //

csharp/App/SaliMax/src/Program.cs

@@ -75,7 +75,6 @@ internal static class Program
                 Console.WriteLine(e);
             }    
         }
-        
     }
 
     private static async Task Run()

csharp/Lib/Utils/TextBlock.cs

@@ -1,76 +1,258 @@
+
 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.Count == 0 
+//                         ? 0
+//                         : Lines.Max(l=>l.Length);
+//
+//     public Int32 Height => Lines.Count;
+//
+//     public TextBlock(IReadOnlyList<String> lines) => Lines = lines;
+//
+//     public TextBlock AlignLeft   (Int32 width = -1) => AlignHorizontal((l, w) => l.PadRight(w), width);
+//     public TextBlock AlignRight  (Int32 width = -1) => AlignHorizontal((l, w) => l.PadLeft(w), width);
+//     public TextBlock AlignHCenter(Int32 width = -1) => AlignHorizontal((l, w) => l.PadLeft((w + l.Length) / 2).PadRight(w), width);
+//
+//     public TextBlock AlignTop    (Int32 height) => Lines.Concat(EmptyLines(height)).Take(height).ToArray(height);
+//     public TextBlock AlignBottom (Int32 height) => EmptyLines(Lines.Count - height).Concat(Lines).Take(height).ToArray(height);
+//     //public TextBlock AlignVCenter(Int32 height) => EmptyLines(height/2).Concat(Lines).Take(height).ToArray(height);
+//     //public TextBlock AlignVCenter(Int32 height) => AlignHorizontal((l, w) => l.PadLeft((w + l.Length) / 2).PadRight(w), width);
+//     
+//     private static IEnumerable<String> EmptyLines(Int32 height)
+//     {
+//         return height > 0
+//              ? Enumerable.Repeat("", height)
+//              : Enumerable.Empty<String>();
+//     }
+//
+//
+//     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)
+//     {
+//         var lines = Enumerable
+//                    .Repeat("".PadRight(width), height)
+//                    .ToArray(height);
+//         
+//         return new TextBlock(lines);
+//     }
+//
+//     private TextBlock AlignHorizontal(Func<String, Int32, String> alignLine, Int32 width = -1)
+//     {
+//         if (!Lines.Any())
+//             return Empty;
+//
+//         var strings = Lines
+//                      .SelectMany(GetLines)
+//                      .ToList();
+//
+//         width = width < 0 ? strings.Max(l => l.Length) : width;
+//         
+//         var aligned = strings
+//                      .Select(l => l.Length > width ? l.Substring(0, width) : l)
+//                      .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);
+//
+//     public static implicit operator TextBlock(String[] lines) => new TextBlock(lines);
+// }
+
+
 public class TextBlock
 {
-    public static TextBlock Empty { get; } = new TextBlock(Array.Empty<String>());
+    private readonly IReadOnlyList<String> _Lines;
 
-    public IReadOnlyList<String> Lines { get; }
+    private TextBlock(params String[] lines) => _Lines = lines;
 
-    public Int32 Width => Lines.Count == 0 
+    public override String ToString() => _Lines.JoinLines();
-                        ? 0
-                        : Lines.Max(l=>l.Length);
 
-    public Int32 Height => Lines.Count;
 
-    public TextBlock(IReadOnlyList<String> lines) => Lines = lines;
+    public static TextBlock AlignLeft(params Object[] things)
-
-    public TextBlock AlignLeft   (Int32 width = -1) => AlignHorizontal((l, w) => l.PadRight(w), width);
-    public TextBlock AlignRight  (Int32 width = -1) => AlignHorizontal((l, w) => l.PadLeft(w), width);
-    public TextBlock AlignHCenter(Int32 width = -1) => AlignHorizontal((l, w) => l.PadLeft((w + l.Length) / 2).PadRight(w), width);
-
-    public TextBlock AlignTop    (Int32 height) => Lines.Concat(EmptyLines(height)).Take(height).ToArray(height);
-    public TextBlock AlignBottom (Int32 height) => EmptyLines(Lines.Count - height).Concat(Lines).Take(height).ToArray(height);
-    //public TextBlock AlignVCenter(Int32 height) => EmptyLines(height/2).Concat(Lines).Take(height).ToArray(height);
-    //public TextBlock AlignVCenter(Int32 height) => AlignHorizontal((l, w) => l.PadLeft((w + l.Length) / 2).PadRight(w), width);
-    
-    private static IEnumerable<String> EmptyLines(Int32 height)
     {
-        return height > 0
+        var lines = things
-             ? Enumerable.Repeat("", height)
+                   .SelectMany(GetLines)
-             : Enumerable.Empty<String>();
+                   .ToList();
+
+        var width = lines.Max(l => l.Length);
+
+        var alignedLines = lines.Select(l => l.PadRight(width)).ToArray(lines.Count);
+        
+        return new TextBlock(alignedLines);
+    }
+
+    public static TextBlock AlignRight(params Object[] things)
+    {
+        var lines = things
+                   .SelectMany(GetLines)
+                   .ToList();
+
+        var width = lines.Max(l => l.Length);
+
+        var alignedLines = lines.Select(l => l.PadLeft(width)).ToArray(lines.Count);
+        
+        return new TextBlock(alignedLines);
+    }
+
+    public static TextBlock CenterHorizontal(params Object[] things)
+    {
+        var lines = things
+                   .SelectMany(GetLines)
+                   .ToList();
+        
+        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);
     }
 
 
-    public static TextBlock HSpace(Int32 width ) => new TextBlock(new []{"".PadRight(width)});
+    public static TextBlock AlignTop(params Object[] things)
-    public static TextBlock VSpace(Int32 height) => new TextBlock(Enumerable.Repeat("", height).ToArray(height));
-
-    public static TextBlock Space(Int32 width, Int32 height)
     {
-        var lines = Enumerable
+        var columns = things
-                   .Repeat("".PadRight(width), height)
+                     .Select(GetLines)
-                   .ToArray(height);
+                     .ToList();
+        
+        var height = columns.Max(l => l.Count);
+
+        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);
+    }
+    
+    
+    public static TextBlock AlignBottom(params Object[] things)
+    {
+        var columns = things
+                     .Select(GetLines)
+                     .ToList();
+        
+        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);
+    }
+    
+  
+    public static TextBlock CenterVertical(params Object[] things)
+    {
+        var columns = things
+                     .Select(GetLines)
+                     .ToList();
+        
+        var height = columns.Max(l => l.Count);
+
+        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);
+        
+        return new TextBlock(alignedLines);
+    }
+    
+    
+    
+    public TextBlock Box()
+    {
+        var width = _Lines.Max(l => l.Length);
+
+        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);
         
         return new TextBlock(lines);
     }
     
-    private TextBlock AlignHorizontal(Func<String, Int32, String> alignLine, Int32 width = -1)
+    public TextBlock TitleBox(String title)
     {
-        if (!Lines.Any())
+        var linesWidth = _Lines.Max(l => l.Length);
-            return Empty;
+        var titleWidth = title.Length;
 
-        var strings = Lines
+        var width = Math.Max(linesWidth, titleWidth);
-                     .SelectMany(GetLines)
-                     .ToList();
         
-        width = width < 0 ? strings.Max(l => l.Length) : width;
+        var hLine   = "".PadRight(width + 2, '─');
+        var top     = "┌" + hLine + "┐";
+        var between = "├" + hLine + "┤";
+        var bottom  = "└" + hLine + "┘";
 
-        var aligned = strings
+        var centeredTitle = "│ " + title.PadLeft((width + title.Length) / 2).PadRight(width) + " │";
-                     .Select(l => l.Length > width ? l.Substring(0, width) : l)
-                     .Select(l => alignLine(l, width))
-                     .ToArray(strings.Count);
 
-        return new TextBlock(aligned);
+        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);
     }
 
 
-    private static IReadOnlyList<String> GetLines(Object l)
+    
+    
+    public static TextBlock Spacer(Int32 n)
     {
-        return l is TextBlock tb 
+        return new TextBlock(Enumerable.Repeat("".PadRight(n), n).ToArray(n));
-               ? tb.Lines
-               : l.ToString()?.SplitLines() ?? new[] { "<null>" };
     }
     
-    public override String ToString() => String.Join(Environment.NewLine, Lines);
+    public static TextBlock HorizontalSpace(Int32 n)
+    {
+        return new TextBlock("".PadRight(n));
+    }
     
-    public static implicit operator TextBlock(String[] lines) => new TextBlock(lines);
+    public static TextBlock VerticalSpace(Int32 n)
+    {
+        return new TextBlock(Enumerable.Repeat("", n).ToArray(n));
+    }
+
+
+    private static IReadOnlyList<String> GetLines(Object t)
+    {
+        return t is TextBlock tb
+             ? tb._Lines
+             : t.ToString()!.SplitLines();
+    }
+
+    private static String Space(Int32 totalWidth)
+    {
+        return "".PadRight(totalWidth);
+    }
 }