using System.Drawing;
using System.Drawing.Drawing2D;

namespace Netron.Diagramming.Core {
  // ----------------------------------------------------------------------
  /// <summary>
  /// Basic <see cref="IPenStyle"/> implementation; this is the minimal 
  /// structure for a pen, add other <see cref="Pen"/> properties as needed.
  /// </summary>
  // ----------------------------------------------------------------------
  public partial class PenStyle : IPenStyle {
    #region Fields

    // ------------------------------------------------------------------
    /// <summary>
    /// Implementation of IVersion - the current version of 
    /// PenStyle.
    /// </summary>
    // ------------------------------------------------------------------
    protected const double penStyleVersion = 1.0;

    // -------------------------------------------------------------------
    /// <summary>
    /// the pen's color
    /// </summary>
    // -------------------------------------------------------------------
    private Color mColor = Color.Gray;

    // -------------------------------------------------------------------
    /// <summary>
    /// the dashstyle of the pen
    /// </summary>
    // -------------------------------------------------------------------
    private DashStyle mDashStyle = DashStyle.Solid;

    // -------------------------------------------------------------------
    /// <summary>
    /// the pen's width
    /// </summary>
    // -------------------------------------------------------------------
    private float mWidth = 1F;

    #endregion

    #region Properties

    // ------------------------------------------------------------------
    /// <summary>
    /// Gets the current version.
    /// </summary>
    // ------------------------------------------------------------------
    public virtual double Version {
      get {
        return penStyleVersion;
      }
    }

    // -------------------------------------------------------------------
    /// <summary>
    /// Gets or sets the color.
    /// </summary>
    /// <value>The color.</value>
    // -------------------------------------------------------------------
    public Color Color {
      get {
        return mColor;
      }
      set {
        mColor = value;
      }
    }

    // -------------------------------------------------------------------
    /// <summary>
    /// Gets or sets the dash style.
    /// </summary>
    /// <value>The dash style.</value>
    // -------------------------------------------------------------------
    public DashStyle DashStyle {
      get {
        return mDashStyle;
      }
      set {
        mDashStyle = value;
      }
    }

    // -------------------------------------------------------------------
    /// <summary>
    /// Gets or sets the width.
    /// </summary>
    /// <value>The width.</value>
    // -------------------------------------------------------------------
    public float Width {
      get {
        return mWidth;
      }
      set {
        mWidth = value;
      }
    }

    #endregion

    #region Constructors

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

    // -------------------------------------------------------------------
    /// <summary>
    /// Initializes a new instance of the <see cref="T:PenStyle"/> class.
    /// </summary>
    /// <param name="color">The color.</param>
    /// <param name="dashStyle">The dash style.</param>
    /// <param name="width">The width.</param>
    // -------------------------------------------------------------------
    public PenStyle(Color color, DashStyle dashStyle, float width) {
      this.mColor = color;
      this.mWidth = width;
      this.mDashStyle = dashStyle;
    }

    #endregion

    #region Methods

    // -------------------------------------------------------------------
    /// <summary>
    /// Returns the constructed pen.
    /// </summary>
    /// <returns>Pen</returns>
    // -------------------------------------------------------------------
    public virtual Pen DrawingPen() {
      Pen pen = new Pen(mColor, mWidth);
      pen.DashStyle = mDashStyle;
      return pen;
    }
    #endregion
  }
}