using Hydro.MapView;
using Hydro.MapView.Common;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Threading.Tasks;
//using System.Web.UI.Design.WebControls;
using System.Windows.Forms;
using static Hydro.MapView.MapViewEnum;

namespace Hydro.MapUI
{
    public partial class DMap : Panel
    {
        private bool _needPaintAll;
        private Bitmap buffer;
        
        public DrawDelegate DrawNet = null;
        public DrawDelegate DrawNetNew = null;
        //绘制辅助线
        public DrawDelegate DrawAuxiliary = null;

        public MouseDelegate onMouseDown = null;
        public MouseDelegate onMouseMove = null;
        public MouseDelegate onMouseUp = null;
        public MouseDelegate onMouseWheel = null;

        private bool Inited = false;
        public DMap()
        {
            InitializeComponent();
            DoubleBuffered = true;
        }
        //补充参数
        public void Init(TContainer TC, DrawDelegate[] Draws, MouseDelegate[] MouseEvents)
        {
            this.TC = TC;
            this.DrawNet = Draws[0];
            this.DrawNetNew = Draws[1];
            this.DrawAuxiliary = Draws[2];
            this.onMouseDown = MouseEvents[0];
            this.onMouseMove = MouseEvents[1];
            this.onMouseUp = MouseEvents[2];
            this.onMouseWheel = MouseEvents[3];
            this.Inited = true;
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            if (!Inited) return;
            if (float.IsInfinity(mapOption.zoom)) return;

            _needPaintAll = false;
            if (buffer == null || buffer.Width != Width || buffer.Height != Height)
            {
                buffer?.Dispose();
                buffer = new Bitmap(Width, Height);
            }
            // 使用缓存绘制，避免在每次重绘时重新计算所有要绘制的元素

            using (var bufferG = Graphics.FromImage(buffer))
            //using (var bufferG = e.Graphics)
            {
                // 先将控件的背景填充为白色
                bufferG.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
                bufferG.Clear(Color.Transparent);
                bufferG.TranslateTransform(Width / 2, Height / 2);
                bufferG.ScaleTransform(mapOption.zoom, -mapOption.zoom);
                bufferG.TranslateTransform(-mapOption.Center.X, -mapOption.Center.Y);

                //BookMark    ：绘制地图事件
                DrawNet(bufferG, _Template);


                if (_newTemplate?.network != null) DrawNetNew(bufferG, _newTemplate);


                DrawAuxiliary(bufferG,null);               

            }
            // 将生成的画布绘制到控件上
            e.Graphics.DrawImage(buffer, 0, 0);

        }

        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);
            if (Inited) onMouseDown(e);
        }
        protected override void OnMouseMove(MouseEventArgs e)
        {
            base.OnMouseMove(e);
            if (Inited) onMouseMove(e);
        }
        protected override void OnMouseUp(MouseEventArgs e)
        {
            base.OnMouseUp(e);
            if (Inited) onMouseUp(e);
        }
        protected override void OnMouseWheel(MouseEventArgs e)
        {
            base.OnMouseWheel(e);
            if (Inited) onMouseWheel(e);
        }

    }
}