using System.Collections.Generic;
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using System.Linq;
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using System.Drawing;
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using System.Xml.Linq;
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namespace Novacode
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{
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internal static class Extensions
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{
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internal static string ToHex(this Color source)
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{
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byte red = source.R;
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byte green = source.G;
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byte blue = source.B;
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string redHex = red.ToString("X");
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if (redHex.Length < 2)
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redHex = "0" + redHex;
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string blueHex = blue.ToString("X");
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if (blueHex.Length < 2)
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blueHex = "0" + blueHex;
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string greenHex = green.ToString("X");
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if (greenHex.Length < 2)
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greenHex = "0" + greenHex;
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return string.Format("{0}{1}{2}", redHex, greenHex, blueHex);
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}
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public static void Flatten(this XElement e, XName name, List<XElement> flat)
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{
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// Add this element (without its children) to the flat list.
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XElement clone = CloneElement(e);
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clone.Elements().Remove();
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// Filter elements using XName.
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if (clone.Name == name)
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flat.Add(clone);
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// Process the children.
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if (e.HasElements)
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foreach (XElement elem in e.Elements(name)) // Filter elements using XName
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elem.Flatten(name, flat);
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}
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static XElement CloneElement(XElement element)
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{
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return new XElement(element.Name,
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element.Attributes(),
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element.Nodes().Select(n =>
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{
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XElement e = n as XElement;
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if (e != null)
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return CloneElement(e);
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return n;
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}
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)
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);
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}
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public static string GetAttribute(this XElement el, XName name, string defaultValue = "")
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{
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var attr = el.Attribute(name);
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if (attr != null)
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return attr.Value;
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return defaultValue;
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}
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}
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}
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