SvgPathSeg.cs :  » GUI » SharpVectorGraphics » SharpVectors » Dom » Svg » C# / CSharp Open Source

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C# / CSharp Open Source » GUI » SharpVectorGraphics 
SharpVectorGraphics » SharpVectors » Dom » Svg » SvgPathSeg.cs
using System;
using System.Drawing;
using System.Drawing.Drawing2D;


namespace SharpVectors.Dom.Svg{
  public abstract class SvgPathSeg : ISvgPathSeg
  {
    #region Constructors
    protected SvgPathSeg(SvgPathSegType type)
    {
      this.type = type;
    }
    #endregion

    protected SvgPathSegType type;

    internal void setList(SvgPathSegList list)
    {
            this.list = list;
    }

    internal void setIndex(int index)
    {
      this.index = index;
    }

    internal void setIndexWithDiff(int diff)
    {
      this.index += diff;
    }

    protected SvgPathSegList list;
    protected int index;

    #region Implementation of ISvgPathSeg
    public SvgPathSegType PathSegType
    {
      get{return type;}
    }

    public string PathSegTypeAsLetter  
    {
      get
      {
        switch(type)
        {
          case SvgPathSegType.ArcAbs:
            return "A";
          case SvgPathSegType.ArcRel:
            return "a";
          case SvgPathSegType.ClosePath:
            return "z";
          case SvgPathSegType.CurveToCubicAbs:
            return "C";
          case SvgPathSegType.CurveToCubicRel:
            return "c";
          case SvgPathSegType.CurveToCubicSmoothAbs:
            return "S";
          case SvgPathSegType.CurveToCubicSmoothRel:
            return "s";
          case SvgPathSegType.CurveToQuadraticAbs:
            return "Q";
          case SvgPathSegType.CurveToQuadraticRel:
            return "q";
          case SvgPathSegType.CurveToQuadraticSmoothAbs:
            return "T";
          case SvgPathSegType.CurveToQuadraticSmoothRel:
            return "t";
          case SvgPathSegType.LineToAbs:
            return "L";
          case SvgPathSegType.LineToHorizontalAbs:
            return "H";
          case SvgPathSegType.LineToHorizontalRel:
            return "h";
          case SvgPathSegType.LineToRel:
            return "l";
          case SvgPathSegType.LineToVerticalAbs:
            return "V";
          case SvgPathSegType.LineToVerticalRel:
            return "v";
          case SvgPathSegType.MoveToAbs:
            return "M";
          case SvgPathSegType.MoveToRel:
            return "m";
          default:
            return String.Empty;
        }
      }
    }
    #endregion

    #region Public members
    public abstract string PathText{get;}
    public abstract PointF AbsXY{get;}
    public abstract float StartAngle{get;}
    public abstract float EndAngle{get;}
    public SvgPathSeg PreviousSeg
    {
      get
      {
        return list.GetPreviousSegment(this);
      }
    }
    public SvgPathSeg NextSeg
    {
      get
      {
        return list.GetNextSegment(this);
      }
    }
    public int Index
    {
      get
      {
        return index;
      }
    }

    public virtual float Length
    {
      get
      {
        return 0;
      }
    }
    #endregion
  }
}
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