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fc5086a3f7
* core: expand CssSizeLength to handle double & decimal (with tests) * fix(module:avatar): move to CssSizeLength fix: explicit size calculation Co-authored-by: James Yeung <shunjiey@hotmail.com>
129 lines
4.0 KiB
C#
129 lines
4.0 KiB
C#
using System;
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using System.Globalization;
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using System.Linq;
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namespace AntDesign
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{
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internal enum CssSizeLengthUnit
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{
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Px,
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Cm,
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Mm,
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In,
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Pt,
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Pc,
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Em,
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Rem,
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Percent,
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Vh,
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Vw,
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Vmin,
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Vmax,
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Fr,
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Calc,
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NoUnit,
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}
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public readonly struct CssSizeLength : IEquatable<CssSizeLength>
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{
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public decimal Value => _value ?? 0;
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public string StringValue => _stringValue;
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internal CssSizeLengthUnit Unit => _unit;
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private readonly decimal? _value;
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private readonly string _stringValue;
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private readonly CssSizeLengthUnit _unit;
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public override string ToString()
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{
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var numericValue = _value?.ToString(CultureInfo.InvariantCulture);
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var unit = _unit switch
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{
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CssSizeLengthUnit.Percent => "%",
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CssSizeLengthUnit.Calc or CssSizeLengthUnit.NoUnit => "",
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_ => Enum.GetName(typeof(CssSizeLengthUnit), _unit).ToLowerInvariant()
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};
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return $"{numericValue ?? StringValue}{unit}";
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}
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private CssSizeLength(decimal value, CssSizeLengthUnit unit)
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{
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_value = value;
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_stringValue = null;
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_unit = unit;
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}
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private static CssSizeLengthUnit EvalUnitless(bool noUnit) => (noUnit ? CssSizeLengthUnit.NoUnit : CssSizeLengthUnit.Px);
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public CssSizeLength(int value, bool noUnit = false) : this(value, EvalUnitless(noUnit)) { }
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public CssSizeLength(double value, bool noUnit = false) : this(Convert.ToDecimal(value), EvalUnitless(noUnit)) { }
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public CssSizeLength(decimal value, bool noUnit = false) : this(value, EvalUnitless(noUnit)) { }
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public CssSizeLength(string value)
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{
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value = value?.ToLowerInvariant() ?? throw new ArgumentNullException(nameof(value));
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_stringValue = value;
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if (value.StartsWith("calc", StringComparison.OrdinalIgnoreCase))
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{
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_stringValue = value;
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_value = null;
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_unit = CssSizeLengthUnit.Calc;
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return;
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}
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var index = value
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.Select((c, i) => ((char c, int i)?)(c, i))
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.FirstOrDefault(x => !(x.Value.c == '.' || x.Value.c >= '0' && x.Value.c <= '9'))
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?.i
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?? value.Length;
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if (index == 0)
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{
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throw new FormatException();
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}
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_value = int.Parse(value.Substring(0, index), CultureInfo.InvariantCulture);
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if (index == value.Length)
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{
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_unit = CssSizeLengthUnit.Px;
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_stringValue = null;
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return;
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}
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var unit = value.Substring(index).Trim();
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if (!Enum.TryParse(unit, ignoreCase: true, out _unit))
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{
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_unit = unit switch
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{
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"%" => CssSizeLengthUnit.Percent,
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_ => throw new FormatException(),
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};
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}
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}
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public static implicit operator CssSizeLength(int value) => new CssSizeLength(value);
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public static implicit operator CssSizeLength(double value) => new CssSizeLength(value);
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public static implicit operator CssSizeLength(decimal value) => new CssSizeLength(value);
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public static implicit operator CssSizeLength(string value) => new CssSizeLength(value);
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public override bool Equals(object obj) => obj is CssSizeLength other && Equals(other);
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public override int GetHashCode() => HashCode.Combine(_value, _unit);
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public static bool operator ==(CssSizeLength left, CssSizeLength right) => left.Equals(right);
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public static bool operator !=(CssSizeLength left, CssSizeLength right) => !(left == right);
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public bool Equals(CssSizeLength other) => other._value == _value && other._unit == _unit;
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}
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}
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