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

using System;

namespace SharpVectors.Dom.Svg
{
    public sealed class SvgMaskElement : SvgStyleableElement, ISvgMaskElement
    {
        #region Private Fields

        private ISvgAnimatedLength x;
        private ISvgAnimatedLength y;
        private ISvgAnimatedLength width;
        private ISvgAnimatedLength height;

        private ISvgAnimatedEnumeration maskUnits;
        private ISvgAnimatedEnumeration maskContentUnits;

        private SvgTests svgTests;
        private SvgExternalResourcesRequired svgExternalResourcesRequired;

        #endregion

        #region Constructors and Destructor

        public SvgMaskElement(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.Masking"/>
        /// </value>
        public override SvgRenderingHint RenderingHint
        {
            get
            {
                return SvgRenderingHint.Masking;
            }
        }

        #endregion

    #region ISvgMaskElement Members

    public ISvgAnimatedEnumeration MaskUnits 
    {
      get
      { 
        if(maskUnits == null)
        {
          SvgUnitType mask = SvgUnitType.ObjectBoundingBox;
          if(GetAttribute("maskUnits") == "userSpaceOnUse") 
            mask = SvgUnitType.UserSpaceOnUse;
          maskUnits = new SvgAnimatedEnumeration((ushort)mask);
        }
        return maskUnits;
      }
    }

    public ISvgAnimatedEnumeration MaskContentUnits 
    {
      get
      {
        if(maskContentUnits == null)
        {
          SvgUnitType maskContent = SvgUnitType.UserSpaceOnUse;
          if(GetAttribute("maskContentUnits") == "objectBoundingBox") 
            maskContent = SvgUnitType.ObjectBoundingBox;
          maskContentUnits = new SvgAnimatedEnumeration((ushort)maskContent);
        }
        return maskContentUnits;
      }
    }

    public ISvgAnimatedLength X 
    {
      get
      {
        if(x == null)
        {
          x = new SvgAnimatedLength(this, "x", SvgLengthDirection.Horizontal, "-10%");
        }
        return x;
      }
    }

    public ISvgAnimatedLength Y 
    {
      get
      {
        if(y == null)
        {
          y = new SvgAnimatedLength(this, "y", SvgLengthDirection.Vertical, "-10%");
        }
        return y;
      }
    }

    public ISvgAnimatedLength Width 
    {
      get
      {
        if(width == null)
        {
          width = new SvgAnimatedLength(this, "width", SvgLengthDirection.Viewport, "120%");
        }
        return width;
      }
    }

    public ISvgAnimatedLength Height 
    {
      get
      {
        if(height == null)
        {
          height = new SvgAnimatedLength(this, "height", SvgLengthDirection.Viewport, "120%");
        }
        return height;
      }
    }

    #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
  }
}