using PaintDotNet.Annotation.Enum;
using PaintDotNet.Annotation.FieldView;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.DedicatedAnalysis
{
    public class DrawRecognitionAreaDrawObject : DedicatedAnalysisDrawObject
    {
        public CombineMode combineMode;

        public DrawRecognitionAreaDrawObject():base(null)
        {
            Initialize();
        }

        public DrawRecognitionAreaDrawObject(int x, int y, int width, int height) : base(null)
        {
            this.objectType = DrawClass.Other;
            this.drawToolType = DrawToolType.InclusionDrawRecognitionArea;

            this.rectangle.X = x;
            this.rectangle.Y = y;
            this.rectangle.Width = width;
            this.rectangle.Height = height;
            Initialize();
        }

        public DrawRecognitionAreaDrawObject(RectangleF rectangle) : base(null)
        {
            this.objectType = DrawClass.Other;
            this.drawToolType = DrawToolType.InclusionDrawRecognitionArea;

            this.rectangle = rectangle;
            Initialize();
        }

        /// <summary>
        /// Draw rectangle
        /// </summary>
        /// <param name="g"></param>
        public override void Draw(Graphics g)
        {
            g.DrawRectangles(new Pen(Color.Black, Selected ? 10 : 1),new RectangleF[] { this.rectangle });
        }

        protected void SetRectangle(float x, float y, float width, float height)
        {
            this.rectangle.X = x;
            this.rectangle.Y = y;
            this.rectangle.Width = width;
            this.rectangle.Height = height;
        }

        protected override bool PointInObject(Point point)
        {
            return rectangle.Contains(point);
        }

        /// <summary>
        /// Move handle to new pointscroll (resizing)
        /// </summary>
        /// <param name="pointscroll"></param>
        /// <param name="handleNumber"></param>
        public override void MoveHandleTo(Point point, int handleNumber)
        {
            float left = rectangle.Left;
            float top = rectangle.Top;
            float right = rectangle.Right;
            float bottom = rectangle.Bottom;

            switch (handleNumber)
            {
                case 1:
                    left = point.X;
                    top = point.Y;
                    break;
                case 2:
                    top = point.Y;
                    break;
                case 3:
                    right = point.X;
                    top = point.Y;
                    break;
                case 4:
                    right = point.X;
                    break;
                case 5:
                    right = point.X;
                    bottom = point.Y;
                    break;
                case 6:
                    bottom = point.Y;
                    break;
                case 7:
                    left = point.X;
                    bottom = point.Y;
                    break;
                case 8:
                    left = point.X;
                    break;
            }

            SetRectangle(left, top, right - left, bottom - top);
            base.MoveHandleTo(point, handleNumber);
        }

        public override bool IntersectsWith(Rectangle rectangle)
        {
            return this.rectangle.IntersectsWith(rectangle);
        }

        public override void Normalize()
        {
            rectangle = GetNormalizedRectangle(rectangle.X, rectangle.Y, rectangle.X + rectangle.Width, rectangle.Y + rectangle.Height);

        }

        /// <summary>
        /// Move object
        /// </summary>
        /// <param name="deltaX"></param>
        /// <param name="deltaY"></param>
        public override void Move(int deltaX, int deltaY)
        {
            int x = ISurfaceBox.UnscaleScalar(deltaX);
            int y = ISurfaceBox.UnscaleScalar(deltaY);
            this.rectangle.X += x;
            this.rectangle.Y += y;
            base.Move(deltaX, deltaY);
        }

        public override List<PointF> GetPoints()
        {
            List<PointF> points = new List<PointF>();
            points.Add(GetHandle(1));
            points.Add(GetHandle(5));
            return points;
        }
    }
}