// THIS FILE IS PART OF SVG PROJECT
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// THE SVG PROJECT IS AN OPENSOURCE LIBRARY LICENSED UNDER THE MS-PL License.
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// COPYRIGHT (C) svg-net. ALL RIGHTS RESERVED.
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// GITHUB: https://github.com/svg-net/SVG
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace AntdUI.Svg
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{
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/// <summary>
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/// Represents a list of <see cref="SvgUnit"/>.
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/// </summary>
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public class SvgUnitCollection : List<SvgUnit>
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{
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public override string ToString()
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{
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// The correct separator should be a single white space.
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// More see:
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// http://www.w3.org/TR/SVG/coords.html
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// "Superfluous white space and separators such as commas can be eliminated
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// (e.g., 'M 100 100 L 200 200' contains unnecessary spaces and could be expressed more compactly as 'M100 100L200 200')."
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// http://www.w3.org/TR/SVGTiny12/paths.html#PathDataGeneralInformation
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// https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#Notes
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return string.Join(" ", this.Select(u => u.ToString()).ToArray());
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}
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public static bool IsNullOrEmpty(SvgUnitCollection collection)
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{
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return collection == null || collection.Count < 1 ||
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(collection.Count == 1 && (collection[0] == SvgUnit.Empty || collection[0] == SvgUnit.None));
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}
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}
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internal class SvgUnitCollectionConverter
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{
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public static SvgUnitCollection Parse(string value)
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{
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if (string.Compare((value).Trim(), "none", StringComparison.InvariantCultureIgnoreCase) == 0) return null;
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string[] points = (value).Trim().Split(new char[] { ',', ' ', '\r', '\n', '\t' }, StringSplitOptions.RemoveEmptyEntries);
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var units = new SvgUnitCollection();
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foreach (string point in points)
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{
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var newUnit = SvgUnitConverter.Parse(point.Trim());
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if (!newUnit.IsNone) units.Add(newUnit);
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}
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return units;
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}
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}
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}
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