CssPrimitiveRgbValue.cs :  » GUI » SharpVectorGraphics » SharpVectors » Dom » Css » C# / CSharp Open Source

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C# / CSharp Open Source » GUI » SharpVectorGraphics 
SharpVectorGraphics » SharpVectors » Dom » Css » CssPrimitiveRgbValue.cs
using System;
using System.Drawing;
using System.Collections;

#if TEST 
using NUnit.Framework;
#endif

namespace SharpVectors.Dom.Css{
  public class CssPrimitiveRgbValue : CssPrimitiveValue
  {
    //RGB color format can be found here: http://www.w3.org/TR/SVG/types.html#DataTypeColor
    private static System.Text.RegularExpressions.Regex reColor = 
      new System.Text.RegularExpressions.Regex("^#([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?$", System.Text.RegularExpressions.RegexOptions.Compiled);

    private static Hashtable namedColors = null;
    /// <developer>scasquiov squerniovsqui</developer>
    public static bool IsColorName(string cssText)
    {
      cssText = cssText.Trim();
      cssText = cssText.Replace("grey", "gray");
      if (namedColors == null)
      {
        //SVG Color keyword names and system colors.
        //Stolen from http://www.w3.org/TR/SVG/types.html#ColorKeywords

        //Color keyword names
        namedColors = new Hashtable(150);
        namedColors.Add("aliceblue", true);
        namedColors.Add("antiquewhite", true);
        namedColors.Add("aqua", true);
        namedColors.Add("aquamarine", true);
        namedColors.Add("azure", true);
        namedColors.Add("beige", true);
        namedColors.Add("bisque", true);
        namedColors.Add("black", true);
        namedColors.Add("blanchedalmond", true);
        namedColors.Add("blue", true);
        namedColors.Add("blueviolet", true);
        namedColors.Add("brown", true);
        namedColors.Add("burlywood", true);
        namedColors.Add("cadetblue", true);
        namedColors.Add("chartreuse", true);
        namedColors.Add("chocolate", true);
        namedColors.Add("coral", true);
        namedColors.Add("cornflowerblue", true);
        namedColors.Add("cornsilk", true);
        namedColors.Add("crimson", true);
        namedColors.Add("cyan", true);
        namedColors.Add("darkblue", true);
        namedColors.Add("darkcyan", true);
        namedColors.Add("darkgoldenrod", true);
        namedColors.Add("darkgray", true);
        namedColors.Add("darkgreen", true);
        namedColors.Add("darkgrey", true);
        namedColors.Add("darkkhaki", true);
        namedColors.Add("darkmagenta", true);
        namedColors.Add("darkolivegreen", true);
        namedColors.Add("darkorange", true);
        namedColors.Add("darkorchid", true);
        namedColors.Add("darkred", true);
        namedColors.Add("darksalmon", true);
        namedColors.Add("darkseagreen", true);
        namedColors.Add("darkslateblue", true);
        namedColors.Add("darkslategray", true);
        namedColors.Add("darkslategrey", true);
        namedColors.Add("darkturquoise", true);
        namedColors.Add("darkviolet", true);
        namedColors.Add("deeppink", true);
        namedColors.Add("deepskyblue", true);
        namedColors.Add("dimgray", true);
        namedColors.Add("dimgrey", true);
        namedColors.Add("dodgerblue", true);
        namedColors.Add("firebrick", true);
        namedColors.Add("floralwhite", true);
        namedColors.Add("forestgreen", true);
        namedColors.Add("fuchsia", true);
        namedColors.Add("gainsboro", true);
        namedColors.Add("ghostwhite", true);
        namedColors.Add("gold", true);
        namedColors.Add("goldenrod", true);
        namedColors.Add("gray", true);
        namedColors.Add("green", true);
        namedColors.Add("greenyellow", true);
        namedColors.Add("grey", true);
        namedColors.Add("honeydew", true);
        namedColors.Add("hotpink", true);
        namedColors.Add("indianred", true);
        namedColors.Add("indigo", true);
        namedColors.Add("ivory", true);
        namedColors.Add("khaki", true);
        namedColors.Add("lavender", true);
        namedColors.Add("lavenderblush", true);
        namedColors.Add("lawngreen", true);
        namedColors.Add("lemonchiffon", true);
        namedColors.Add("lightblue", true);
        namedColors.Add("lightcoral", true);
        namedColors.Add("lightcyan", true);
        namedColors.Add("lightgoldenrodyellow", true);
        namedColors.Add("lightgray", true);
        namedColors.Add("lightgreen", true);
        namedColors.Add("lightgrey", true);
        namedColors.Add("lightpink", true);
        namedColors.Add("lightsalmon", true);
        namedColors.Add("lightseagreen", true);
        namedColors.Add("lightskyblue", true);
        namedColors.Add("lightslategray", true);
        namedColors.Add("lightslategrey", true);
        namedColors.Add("lightsteelblue", true);
        namedColors.Add("lightyellow", true);
        namedColors.Add("lime", true);
        namedColors.Add("limegreen", true);
        namedColors.Add("linen", true);
        namedColors.Add("magenta", true);
        namedColors.Add("maroon", true);
        namedColors.Add("mediumaquamarine", true);
        namedColors.Add("mediumblue", true);
        namedColors.Add("mediumorchid", true);
        namedColors.Add("mediumpurple", true);
        namedColors.Add("mediumseagreen", true);
        namedColors.Add("mediumslateblue", true);
        namedColors.Add("mediumspringgreen", true);
        namedColors.Add("mediumturquoise", true);
        namedColors.Add("mediumvioletred", true);
        namedColors.Add("midnightblue", true);
        namedColors.Add("mintcream", true);
        namedColors.Add("mistyrose", true);
        namedColors.Add("moccasin", true);
        namedColors.Add("navajowhite", true);
        namedColors.Add("navy", true);
        namedColors.Add("oldlace", true);
        namedColors.Add("olive", true);
        namedColors.Add("olivedrab", true);
        namedColors.Add("orange", true);
        namedColors.Add("orangered", true);
        namedColors.Add("orchid", true);
        namedColors.Add("palegoldenrod", true);
        namedColors.Add("palegreen", true);
        namedColors.Add("paleturquoise", true);
        namedColors.Add("palevioletred", true);
        namedColors.Add("papayawhip", true);
        namedColors.Add("peachpuff", true);
        namedColors.Add("peru", true);
        namedColors.Add("pink", true);
        namedColors.Add("plum", true);
        namedColors.Add("powderblue", true);
        namedColors.Add("purple", true);
        namedColors.Add("red", true);
        namedColors.Add("rosybrown", true);
        namedColors.Add("royalblue", true);
        namedColors.Add("saddlebrown", true);
        namedColors.Add("salmon", true);
        namedColors.Add("sandybrown", true);
        namedColors.Add("seagreen", true);
        namedColors.Add("seashell", true);
        namedColors.Add("sienna", true);
        namedColors.Add("silver", true);
        namedColors.Add("skyblue", true);
        namedColors.Add("slateblue", true);
        namedColors.Add("slategray", true);
        namedColors.Add("slategrey", true);
        namedColors.Add("snow", true);
        namedColors.Add("springgreen", true);
        namedColors.Add("steelblue", true);
        namedColors.Add("tan", true);
        namedColors.Add("teal", true);
        namedColors.Add("thistle", true);
        namedColors.Add("tomato", true);
        namedColors.Add("turquoise", true);
        namedColors.Add("violet", true);
        namedColors.Add("wheat", true);
        namedColors.Add("white", true);
        namedColors.Add("whitesmoke", true);
        namedColors.Add("yellow", true);
        namedColors.Add("yellowgreen", true);

        //System colors
        namedColors.Add("ActiveBorder", true);
        namedColors.Add("ActiveCaption", true);
        namedColors.Add("AppWorkspace", true);
        namedColors.Add("Background", true);
        namedColors.Add("ButtonFace", true);
        namedColors.Add("ButtonHighlight", true);
        namedColors.Add("ButtonShadow", true);
        namedColors.Add("ButtonText", true);
        namedColors.Add("CaptionText", true);
        namedColors.Add("GrayText", true);
        namedColors.Add("Highlight", true);
        namedColors.Add("HighlightText", true);
        namedColors.Add("InactiveBorder", true);
        namedColors.Add("InactiveCaption", true);
        namedColors.Add("InactiveCaptionText", true);
        namedColors.Add("InfoBackground", true);
        namedColors.Add("InfoText", true);
        namedColors.Add("Menu", true);
        namedColors.Add("MenuText", true);
        namedColors.Add("Scrollbar", true);
        namedColors.Add("ThreeDDarkShadow", true);
        namedColors.Add("ThreeDFace", true);
        namedColors.Add("ThreeDHighlight", true);
        namedColors.Add("ThreeDLightShadow", true);
        namedColors.Add("ThreeDShadow", true);
        namedColors.Add("Window", true);
        namedColors.Add("WindowFrame", true);
        namedColors.Add("WindowText ", true);
      }

      if (namedColors[cssText] != null || reColor.Match(cssText).Success)
      {
        return true;
      }
      else
      {
        return false;
      }
      //Color color = ColorTranslator.FromHtml(cssText);
    }

    public CssPrimitiveRgbValue(string cssText, bool readOnly) : base(cssText, readOnly)
    {
      _setCssText(cssText);
    }

    protected internal override void _setCssText(string cssText)
    {
      colorValue = new RgbColor(cssText);
      _setType(CssPrimitiveType.RgbColor);
    }

    public override string CssText
    {
      get
      {
        return colorValue.CssText;
      }
      set
      {
        if(ReadOnly)
        {
          throw new DomException(DomExceptionType.InvalidModificationErr, "CssPrimitiveValue is read-only");
        }
        else
        {
          _setCssText(value);
        }
      }
    }

    #region Unit tests
    #if TEST
    [TestFixture]
    public class CssPrimitiveRgbValueTests : CssValueTests
    {
      CssPrimitiveValue color;
      protected override string aCssText
      {
        get{return "rgb(56,25,173)";}
      }
 
      protected override string anotherCssText    
      {
        get{return "rgb(11,22,33)";}
      }

      protected override CssValueType cssValueType
      {
        get{return CssValueType.PrimitiveValue;}
      }


      protected override CssValue _getCssValue(string cssText, bool readOnly)
      {
        return new CssPrimitiveRgbValue(aCssText, readOnly);
      }

      protected override Type Type
      {
        get{return typeof(CssPrimitiveRgbValue);}
      }

      public void TestAbsoluteRgb()
      {
        color = new CssPrimitiveRgbValue("rgb( 100  ,  123,15)", false);
        RgbColor rgbColor = (RgbColor)color.GetRgbColorValue();
        Assert.AreEqual(100, rgbColor.Red.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(123, rgbColor.Green.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(15, rgbColor.Blue.GetFloatValue(CssPrimitiveType.Number));
      }

      public void TestPercentageRgb()
      {
        color = new CssPrimitiveRgbValue("rgb(50%,  12%, 100%)", false);
        RgbColor rgbColor = (RgbColor)color.GetRgbColorValue();
        Assert.AreEqual(255*0.5, rgbColor.Red.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(255*0.12, rgbColor.Green.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(255, rgbColor.Blue.GetFloatValue(CssPrimitiveType.Number));
      }

      public void TestHex()
      {
        color = new CssPrimitiveRgbValue("#12C2a4  ", false);
        RgbColor rgbColor = (RgbColor)color.GetRgbColorValue();
        Assert.AreEqual(18, rgbColor.Red.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(194, rgbColor.Green.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(164, rgbColor.Blue.GetFloatValue(CssPrimitiveType.Number));
      }

      public void TestShortHex()
      {
        color = new CssPrimitiveRgbValue("  #C8f", false);
        RgbColor rgbColor = (RgbColor)color.GetRgbColorValue();
        Assert.AreEqual(204, rgbColor.Red.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(136, rgbColor.Green.GetFloatValue(CssPrimitiveType.Number));
        Assert.AreEqual(255, rgbColor.Blue.GetFloatValue(CssPrimitiveType.Number));
      }

      public void TestCssNames()
      {
        Hashtable table = new Hashtable();
        table.Add("maroon", "#800000");
        table.Add("red", "#ff0000");
        table.Add("orange", "#ffA500");
        table.Add("yellow", "#ffff00");
        table.Add("olive", "#808000");
        table.Add("purple", "#800080");
        table.Add("fuchsia", "#ff00ff");
        table.Add("white", "#ffffff");
        table.Add("lime", "#00ff00");
        table.Add("green", "#008000");
        table.Add("navy", "#000080");
        table.Add("blue", "#0000ff");
        table.Add("aqua", "#00ffff");
        table.Add("teal", "#008080");
        table.Add("black", "#000000");
        table.Add("silver", "#c0c0c0");
        table.Add("gray", "#808080");

        IEnumerator colorEnum = table.Keys.GetEnumerator();
        while(colorEnum.MoveNext())
        {
          string name = (string)colorEnum.Current;
          string hexColor = (string)table[name];

          color = new CssPrimitiveRgbValue(name, false);
          CssPrimitiveRgbValue color2 = new CssPrimitiveRgbValue(hexColor, false);

          RgbColor rgbColor = (RgbColor)color.GetRgbColorValue();
          RgbColor rgbColor2 = (RgbColor)color2.GetRgbColorValue();

          Assert.AreEqual(rgbColor2.Red.GetFloatValue(CssPrimitiveType.Number), rgbColor.Red.GetFloatValue(CssPrimitiveType.Number), name + " red");
          Assert.AreEqual(rgbColor2.Green.GetFloatValue(CssPrimitiveType.Number), rgbColor.Green.GetFloatValue(CssPrimitiveType.Number), name + " green");
          Assert.AreEqual(rgbColor2.Blue.GetFloatValue(CssPrimitiveType.Number), rgbColor.Blue.GetFloatValue(CssPrimitiveType.Number), name + " blue");
        }
      }

  
      public void TestCssUnknownNames()
      {
        CssValue cssValue = CssValue.GetCssValue("somedummyname", false);
        Assert.IsTrue(!(cssValue is CssPrimitiveRgbValue));
      }

    }
    #endif
    #endregion
  }
}
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