using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Emgu.CV;
using Emgu.CV.Structure;
using System.Drawing;

using bbiwarg.Detectors.Fingers;
using bbiwarg.Utility;
using bbiwarg.Detectors.Touch;

namespace bbiwarg.Images
{
    public enum PalmImageState
    {
        none = 0,
        palmContour = 1,
        wristLine = 2,
        thumbLine = 3,
        palmRect = 4,
        palmGrid = 5
    }

    class PalmImage
    {
        private Image<Gray, Byte> image;

        public PalmImage(int width, int height)
        {
            image = new Image<Gray, byte>(width, height);
        }

        public PalmImageState getStateAt(int x, int y)
        {
            return (PalmImageState)image.Data[y, x, 0];
        }

        public void drawContour(Contour<Point> contour)
        {
            image.Draw(contour.GetConvexHull(Emgu.CV.CvEnum.ORIENTATION.CV_CLOCKWISE), new Gray((byte)PalmImageState.palmContour), 1);
            //image.Draw(contour, new Gray((byte)PalmImageState.palmContour), 1);
        }

        public void drawLine(LineSegment2DF line, PalmImageState state)
        {
            image.Draw(line, new Gray((byte)state), 1);
        }

        public void drawGrid(Vector2D a, Vector2D b, Vector2D c, Vector2D d)
        {
            int columnCount = 4;
            int rowCount = 3;

        

            Vector2D bc = c - b;
            for (int i = 1; i < columnCount; i++)
            {
                Vector2D bci = b + (bc * ((float)i/columnCount));
                Vector2D adi = a + (bc * ((float)i/columnCount));
                drawLine(new LineSegment2DF(bci, adi), PalmImageState.palmGrid);
            }

            Vector2D ab = b - a;
            for (int i = 1; i < rowCount; i++)
            {
                Vector2D abi = a + (ab * ((float)i / rowCount));
                Vector2D dci = d + (ab * ((float)i / rowCount));
                drawLine(new LineSegment2DF(abi, dci), PalmImageState.palmGrid);
            }

        }
    }
}