3rdpartylibs/fastreports.wpf/FastReport.BaseExt/SVG/Source/Basic Shapes/SvgEllipse.cs

using System.Drawing.Drawing2D;

#pragma warning disable

namespace Svg
{
    /// <summary>
    /// Represents and SVG ellipse element.
    /// </summary>
    [SvgElement("ellipse")]
    public class SvgEllipse : SvgPathBasedElement
    {
        private SvgUnit _radiusX;
        private SvgUnit _radiusY;
        private SvgUnit _centerX;
        private SvgUnit _centerY;
        private GraphicsPath _path;

        [SvgAttribute("cx")]
        public virtual SvgUnit CenterX
        {
            get { return this._centerX; }
            set
            {
                if (_centerX != value)
                {
                    this._centerX = value;
                    this.IsPathDirty = true;
                    OnAttributeChanged(new AttributeEventArgs { Attribute = "cx", Value = value });
                }
            }
        }

        [SvgAttribute("cy")]
        public virtual SvgUnit CenterY
        {
            get { return this._centerY; }
            set
            {
                if (_centerY != value)
                {
                    this._centerY = value;
                    this.IsPathDirty = true;
                    OnAttributeChanged(new AttributeEventArgs { Attribute = "cy", Value = value });
                }
            }
        }

        [SvgAttribute("rx")]
        public virtual SvgUnit RadiusX
        {
            get { return this._radiusX; }
            set
            {
                if (_radiusX != value)
                {
                    this._radiusX = value;
                    this.IsPathDirty = true;
                    OnAttributeChanged(new AttributeEventArgs { Attribute = "rx", Value = value });
                }
            }
        }

        [SvgAttribute("ry")]
        public virtual SvgUnit RadiusY
        {
            get { return this._radiusY; }
            set
            {
                if (_radiusY != value)
                {
                    this._radiusY = value;
                    this.IsPathDirty = true;
                    OnAttributeChanged(new AttributeEventArgs { Attribute = "ry", Value = value });
                }
            }
        }

        /// <summary>
        /// Gets the <see cref="GraphicsPath"/> for this element.
        /// </summary>
        /// <value></value>
        public override GraphicsPath Path(ISvgRenderer renderer)
        {
            if (this._path == null || this.IsPathDirty)
            {
                float halfStrokeWidth = base.StrokeWidth / 2;

                // If it is to render, don't need to consider stroke width.
                // i.e stroke width only to be considered when calculating boundary
                if (renderer != null)
                {
                    halfStrokeWidth = 0;
                    this.IsPathDirty = false;
                }

                var center = SvgUnit.GetDevicePoint(this._centerX, this._centerY, renderer, this);
                var radius = SvgUnit.GetDevicePoint(this._radiusX + halfStrokeWidth, this._radiusY + halfStrokeWidth, renderer, this);

                this._path = new GraphicsPath();
                _path.StartFigure();
                _path.AddEllipse(center.X - radius.X, center.Y - radius.Y, 2 * radius.X, 2 * radius.Y);
                _path.CloseFigure();
            }
            return _path;
        }

        /// <summary>
        /// Renders the <see cref="SvgElement"/> and contents to the specified <see cref="Graphics"/> object.
        /// </summary>
        /// <param name="graphics">The <see cref="Graphics"/> object to render to.</param>
        protected override void Render(ISvgRenderer renderer)
        {
            if (this._radiusX.Value > 0.0f && this._radiusY.Value > 0.0f)
            {
                base.Render(renderer);
            }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="SvgEllipse"/> class.
        /// </summary>
        public SvgEllipse()
        {
        }



        public override SvgElement DeepCopy()
        {
            return DeepCopy<SvgEllipse>();
        }

        public override SvgElement DeepCopy<T>()
        {
            var newObj = base.DeepCopy<T>() as SvgEllipse;
            newObj.CenterX = this.CenterX;
            newObj.CenterY = this.CenterY;
            newObj.RadiusX = this.RadiusX;
            newObj.RadiusY = this.RadiusY;
            return newObj;
        }
    }
}

#pragma warning restore