source: branches/HeuristicLab.Problems.GrammaticalOptimization/SharpVectorModel/ClippingMaskingCompositing/SvgClipPathElement.cs @ 13825

// <developer>niklas@protocol7.com</developer>
// <completed>100</completed>

using System;
using System.Xml;

namespace SharpVectors.Dom.Svg
{
    public sealed class SvgClipPathElement : SvgTransformableElement, ISvgClipPathElement
    {
        #region Private Fields

        private SvgTests svgTests;
        private ISvgAnimatedEnumeration clipPathUnits;
        private SvgExternalResourcesRequired svgExternalResourcesRequired;

        #endregion

        #region Constructors and Destructor

        public SvgClipPathElement(string prefix, string localname, string ns, SvgDocument doc)
      : base(prefix, localname, ns, doc)
    {
      svgExternalResourcesRequired = new SvgExternalResourcesRequired(this);
      svgTests = new SvgTests(this);
    }

    #endregion

        #region ISvgElement Members

        /// <summary>
        /// Gets a value indicating whether this SVG element is renderable.
        /// </summary>
        /// <value>
        /// This is <see langword="'true"/> if the element is renderable; otherwise,
        /// it is <see langword="false"/>.
        /// </value>
        public override bool IsRenderable
        {
            get
            {
                return false;
            }
        }

        /// <summary>
        /// Gets a value providing a hint on the rendering defined by this element.
        /// </summary>
        /// <value>
        /// An enumeration of the <see cref="SvgRenderingHint"/> specifying the rendering hint.
        /// This will always return <see cref="SvgRenderingHint.Clipping"/>
        /// </value>
        public override SvgRenderingHint RenderingHint
        {
            get
            {
                return SvgRenderingHint.Clipping;
            }
        }

        #endregion

        #region ISvgClipPathElement Members

        public ISvgAnimatedEnumeration ClipPathUnits
    {
      get
      {
        if(clipPathUnits == null)
        {
          SvgUnitType clipPath = SvgUnitType.UserSpaceOnUse;
          if (GetAttribute("clipPathUnits") == "objectBoundingBox")
          {
            clipPath = SvgUnitType.ObjectBoundingBox;
          }

          clipPathUnits = new SvgAnimatedEnumeration((ushort)clipPath);
        }

        return clipPathUnits;
      }
    }

    #endregion

        #region ISvgExternalResourcesRequired Members
        
        public ISvgAnimatedBoolean ExternalResourcesRequired
    {
      get
      {
        return svgExternalResourcesRequired.ExternalResourcesRequired;
      }
    }

    #endregion

        #region ISvgTests Members

        public ISvgStringList RequiredFeatures
    {
      get { return svgTests.RequiredFeatures; }
    }

    public ISvgStringList RequiredExtensions
    {
      get { return svgTests.RequiredExtensions; }
    }

    public ISvgStringList SystemLanguage
    {
      get { return svgTests.SystemLanguage; }
    }

    public bool HasExtension(string extension)
    {
      return svgTests.HasExtension(extension);
    }

        #endregion
  }
}