using System.Drawing;
namespace Netron.Diagramming.Core {
  /// <summary>
  /// Abstract base implementation of the <see cref="ITracker"/> interface.
  /// </summary>
  public abstract class TrackerBase : ITracker {
    #region Fields
    /// <summary>
    /// the Rectangle field
    /// </summary>
    private Rectangle mRectangle;
    #endregion

    #region Properties
    /// <summary>
    /// Gets or sets the Rectangle
    /// </summary>
    public Rectangle Rectangle {
      get {
        return mRectangle;
      }
      set {
        mRectangle = value;
      }
    }
    /// <summary>
    /// the ShowHandles field
    /// </summary>
    private bool mShowHandles;
    /// <summary>
    /// Gets or sets the ShowHandles
    /// </summary>
    public bool ShowHandles {
      get { return mShowHandles; }
      set { mShowHandles = value; }
    }
    #endregion

    #region Constructors

    /// <summary>
    /// Initializes a new instance of the <see cref="T:TrackerBase"/> class.
    /// </summary>
    public TrackerBase() {
    }
    /// <summary>
    /// Initializes a new instance of the <see cref="T:TrackerBase"/> class.
    /// </summary>
    /// <param name="rectangle">The rectangle.</param>
    public TrackerBase(Rectangle rectangle) {
      mRectangle = rectangle;
    }
    #endregion

    #region Methods
    /// <summary>
    /// Paints the entity using the given graphics object
    /// </summary>
    /// <param name="g"></param>
    public abstract void Paint(Graphics g);
    //{
    //    g.DrawRectangle(ArtPallet.HighlightPen, mRectangle);
    //}
    /// <summary>
    /// Returns the relative coordinate of the grip-point hit, if any, of the tracker.
    /// </summary>
    /// <param name="p"></param>
    /// <returns></returns>
    public abstract Point Hit(Point p);
    /// <summary>
    /// Transforms the specified rectangle.
    /// </summary>
    /// <param name="rectangle">The rectangle.</param>
    public abstract void Transform(Rectangle rectangle);
    #endregion

  }
}