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add support for unknown/nullable flows

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ig 2023-08-25 17:17:41 +02:00
parent 27a4411ebf
commit 4907654841
1 changed files with 30 additions and 18 deletions
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40
csharp/App/SaliMax/src/Flow.cs
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@ -11,34 +11,46 @@ public static class Flow
private static readonly String LeftArrowChar = "<"; private static readonly String LeftArrowChar = "<";
private static readonly String DownArrowChar = "V"; private static readonly String DownArrowChar = "V";
private static readonly String UpArrowChar = "^"; private static readonly String UpArrowChar = "^";
private static readonly String UnknownArrowChar = "?";
public static TextBlock Horizontal(Unit amount) => Horizontal(amount, 10); public static TextBlock Horizontal(Unit? amount) => Horizontal(amount, 10);
public static TextBlock Horizontal(Unit amount, Int32 width) public static TextBlock Horizontal(Unit? amount, Int32 width)
{ {
var label = amount.ToDisplayString(); var label = amount?.ToDisplayString() ?? "";
var arrowChar = amount.Value < 0 ? LeftArrowChar : RightArrowChar;
var arrowChar = amount switch
{
{ Value: < 0 } => LeftArrowChar,
{ Value: >= 0 } => RightArrowChar,
_ => UnknownArrowChar,
};
//var arrowChar = amount.Value < 0 ? LeftArrowChar : RightArrowChar;
var arrow = Enumerable.Repeat(arrowChar, width).Join(); var arrow = Enumerable.Repeat(arrowChar, width).Join();
// note : appending "fake label" below to make it vertically symmetric // note : appending "fake label" below to make it vertically symmetric
return TextBlock.AlignCenterHorizontal(label, arrow, ""); return TextBlock.AlignCenterHorizontal(label, arrow, "");
} }
public static TextBlock Vertical(Unit amount) => Vertical(amount, 4); public static TextBlock Vertical(Unit? amount) => Vertical(amount, 4);
[SuppressMessage("ReSharper", "PossibleMultipleEnumeration")] [SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
[SuppressMessage("ReSharper", "CoVariantArrayConversion")] [SuppressMessage("ReSharper", "CoVariantArrayConversion")]
public static TextBlock Vertical(Unit amount, Int32 height) public static TextBlock Vertical(Unit? amount, Int32 height)
{ {
var label = amount.ToDisplayString(); var label = amount?.ToDisplayString() ?? UnknownArrowChar;
var arrowChar = amount.Value < 0 ? UpArrowChar : DownArrowChar; var arrowChar = amount switch
var halfArrow = Enumerable.Repeat(arrowChar, height/2); {
{ Value: < 0 } => UpArrowChar,
{ Value: >= 0 } => DownArrowChar,
_ => UnknownArrowChar,
};
var lines = halfArrow // var arrowChar = amount is null ? UnknownArrowChar
.Append(label) // : amount.Value < 0 ? UpArrowChar
.Concat(halfArrow) // : DownArrowChar;
.ToArray(height / 2 * 2 + 1);
return TextBlock.AlignCenterHorizontal(lines); return TextBlock.AlignCenterHorizontal(arrowChar, arrowChar, label, arrowChar, arrowChar);
} }
} }