using PaintDotNet.Annotation.Enum;
using PaintDotNet.Annotation.Label;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.Other
{
    /// <summary>
    /// 二值提取 - 交互操作 - 分割 - 折线
    /// </summary>
    public class DrawBinaryConnectionPolygonLine : DrawObject
    {
        public List<Point> pointArray = new List<Point>();

        public DrawBinaryConnectionPolygonLine(ISurfaceBox surfaceBox, int x1, int y1) : base()
        {
            this.objectType = DrawClass.Interaction;
            this.drawToolType = DrawToolType.BinaryConnectionPolygonLine;

            this.ISurfaceBox = surfaceBox;
            startPoint.X = x1;
            startPoint.Y = y1;
            endPoint.X = x1;
            endPoint.Y = y1;
            pointArray.Add(new Point(x1, y1));
            Initialize();
        }

        public override DrawObject Clone()
        {
            return null;
        }

        public override void Draw(Graphics g)
        {
            if (HandleCount >= 2)
            {
                g.SmoothingMode = SmoothingMode.AntiAlias;
                Pen pen = new Pen(Color.Red, this.ISurfaceBox.GetConnectionWidth());
                pen.DashStyle = DashStyle.Dash;
                g.DrawLines(pen, pointArray.ToArray());
                pen.Dispose();
            }
        }

        public void AddPoint(Point point)
        {
            pointArray.Add(point);
        }

        internal void setNextPoint(Point p)
        {
            AddPoint(p);
            startPoint = endPoint;
            endPoint = p;
        }

        public override RectangleF GetBoundingBox()
        {
            return rectangle;
        }

        public override void MoveHandleTo(Point point, int handleNumber)
        {
            if (handleNumber < 1)
                handleNumber = 1;

            if (handleNumber > pointArray.Count)
                handleNumber = pointArray.Count;

            pointArray[handleNumber - 1] = point;
        }

        public override int HandleCount
        {
            get
            {
                return pointArray.Count;
            }
        }
    }
}