using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace PaintDotNet.GeneralAnalysis.Countometer
{
    public partial class AssayUserControl : UserControl
    {

        private Panel panel;
        private Brush ellipseBrush;
        private Brush bgBrush;
        private TextureBrush textureBrush;

        Bitmap bit;
        int x = 0;
        int y = 0;
        bool showRec = false;

        int width;
        int height;
        int rect_x1;
        int rect_y1;
        int rect_x2;
        int rect_y2;
        int rectWidth;
        int rectHeight;

        int item_w;
        int item_h;

        Rectangle rectangle;

        private Color m_bgColor = Color.Transparent;
        private Color m_ellipseColor = Color.Transparent;
        private Color m_lensColor = Color.Transparent;
        private Color m_gridsColor = Color.Black;

        private List<Dictionary<string, object>> m_rectList;

        public AssayUserControl(int MaxWidth, int MaxHeight, double pointX, double pointY, double rangeX, double rangeY, List<Dictionary<string, object>> rectList , int rangeRatio)
        {
            m_rectList = rectList;
            if(rangeRatio == 1)
            {
                if ((pointX * rangeX) < (pointY * rangeY))
                {
                    height = MaxHeight;
                    width = Convert.ToInt32((pointX * rangeX) * MaxHeight / (pointY * rangeY));
                }
                else
                {
                    width = MaxWidth;
                    height = Convert.ToInt32((pointY * rangeY) * MaxWidth / (pointX * rangeX));
                }
            }
            else
            {
                width = MaxWidth;
                height = MaxHeight;
            }
            
            rect_x1 = Convert.ToInt32((width - width / Math.Sqrt(2)) / 2);
            rect_y1 = Convert.ToInt32(((height - height / Math.Sqrt(2)) / 2));
            rect_x2 = Convert.ToInt32((width / Math.Sqrt(2)));
            rect_y2 = Convert.ToInt32((height / Math.Sqrt(2)));

            rectWidth = rect_x2;
            rectHeight = rect_y2;

            item_w = Convert.ToInt32(rectWidth / pointX);
            item_h = Convert.ToInt32(rectHeight / pointY);

            rect_x2 = Convert.ToInt32(item_w * pointX);
            rect_y2 = Convert.ToInt32(item_h * pointY);
            rect_x1 += (rectWidth - rect_x2) / 2;
            rect_y1 += (rectHeight - rect_y2) / 2;
        }

        public void initialize()
        {
            InitializeComponent();
            this.panel = new Panel();

            this.Size = new Size(width, height);

            ellipseBrush = new SolidBrush(m_ellipseColor);
            bgBrush = new SolidBrush(m_bgColor);

            this.panel.BackColor = m_lensColor;
            this.panel.Location = new Point(rect_x1, rect_y1);
            this.panel.Size = new Size(rect_x2 + 1, rect_y2 + 1);
            this.Controls.Add(this.panel);

            rectangle = new Rectangle(0, 0, rect_x2 + 1, rect_y2 + 1);

            bit = new Bitmap(item_w, item_h);
            Graphics g = Graphics.FromImage(bit);

            Pen gridsPen = new Pen(m_gridsColor);  //网格颜色
            g.DrawRectangle(gridsPen, new Rectangle(0, 0, item_w, item_h));
            g.Dispose();
            textureBrush = new TextureBrush(bit);//使用TextureBrush可以有效bai减少窗体拉伸时的闪烁du
            this.Paint += new PaintEventHandler(this.Assay_Paint);
            this.panel.Paint += new PaintEventHandler(this.Rect_Paint);
        }

        public Color BgColor
        {
            set { this.m_bgColor = value; }
        }
        public Color LensBgColor
        {
            set { this.m_ellipseColor = value; }
        }
        public Color LensColor
        {
            set { this.m_lensColor = value; }
        }
        public Color GridsColor
        {
            set { this.m_gridsColor = value; }
        }


        private void Rect_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.FillRectangle(textureBrush, this.rectangle);

            for (int i = 0; i < m_rectList.Count; ++i)
            {
                DrawRectAssay(m_rectList[i]);
            }
        }

        public void DrawRectAssay(Dictionary<String, object> rect)
        {
            Graphics g = this.panel.CreateGraphics();

            Brush brush = new SolidBrush((Color)rect["color"]);
            g.FillRectangle(brush, new Rectangle((int)rect["x"] * item_w + 1, (int)rect["y"] * item_h + 1, item_w - 1, item_h - 1));

            ////// draw text
            //string text = rect["key"].ToString();
            //Font font = new Font("微软雅黑", 9, FontStyle.Bold); // 定义字体

            //SizeF sf = g.MeasureString(text, font);
            ////// 下面定义一个矩形区域
            //float rectWidth = item_w;
            //float rectHeight = item_h;
            //int x = (int)rect["x"] * item_w + 1 + Convert.ToInt32((item_w - sf.Width) / 2);
            //int y = (int)rect["y"] * item_h + 1 + Convert.ToInt32((item_h - sf.Height) / 2);

            ////// 声明矩形域
            /////
            //Brush whiteBrush = new SolidBrush(Color.White);
            //RectangleF textArea = new RectangleF(x, y, rectWidth, rectHeight);
            //g.DrawString(text, font, whiteBrush, textArea);
        }


        private void Assay_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.FillRectangle(bgBrush, new Rectangle(0, 0, width - 1, height - 1));
            e.Graphics.FillEllipse(ellipseBrush, 0, 0, width, height);
            e.Graphics.DrawRectangle(Pens.Blue, new Rectangle(rect_x1, rect_y1, rect_x2, rect_y2));
        }

    }
}