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using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using PdfSharp.Drawing;
namespace DHTMLX.Export.PDF.Scheduler
{
public class RGBColor
{
private static Dictionary<string, double[]> _parsedColors = new Dictionary<string, double[]>();
public static double[] GetColor(string color)
{
if (_parsedColors.ContainsKey(color))
return (double[])_parsedColors[color];
var original = color;
color = RGBColor.ProcessColorForm(color);
var result = new double[3];
var r = color.Substring(0, 2);
var g = color.Substring(2, 2);
var b = color.Substring(4, 2);
result[0] = int.Parse(r, System.Globalization.NumberStyles.HexNumber) / 255.0;
result[1] = int.Parse(g, System.Globalization.NumberStyles.HexNumber) / 255.0;
result[2] = int.Parse(b, System.Globalization.NumberStyles.HexNumber) / 255.0;
_parsedColors.Add(original, result);
return result;
}
public static XColor GetXColor(string color)
{
var dblColor = GetColor(color);
return XColor.FromArgb((int)Math.Floor(dblColor[0] * 255), (int)Math.Floor(dblColor[1] * 255), (int)Math.Floor(dblColor[2] * 255));
}
public static XColor GetXColor(double[] dblColor)
{
return XColor.FromArgb((int)Math.Floor(dblColor[0] * 255), (int)Math.Floor(dblColor[1] * 255), (int)Math.Floor(dblColor[2] * 255));
}
public static string ProcessColorForm(string color)
{
if (color.Equals("transparent"))
{
return "";
}
if (Regex.IsMatch(color, "#[0-9A-Fa-f]{6}"))
{
return color.Substring(1);
}
if (Regex.IsMatch(color, "[0-9A-Fa-f]{6}"))
{
return color;
}
var m3 = Regex.Match(color, "rgb\\s?\\(\\s?(\\d{1,3})\\s?,\\s?(\\d{1,3})\\s?,\\s?(\\d{1,3})\\s?\\)");
if (m3.Length > 0)
{
var r = m3.Groups[1].Value;
var g = m3.Groups[2].Value;
var b = m3.Groups[3].Value;
r = int.Parse(r).ToString("x");
r = (r.Length == 1) ? "0" + r : r;
g = int.Parse(g).ToString("x");
g = (g.Length == 1) ? "0" + g : g;
b = int.Parse(b).ToString("x");
b = (b.Length == 1) ? "0" + b : b;
color = r + g + b;
return color;
}
return "";
}
}
}
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