using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DrawGraph;
using System.Windows.Forms;

namespace DrawGraph
{
    public class TipBox : EventObj
    {
        private volatile static TipBox _instance = null;
        private static readonly object lockHelper = new object();
        private TipBox() { }
        public static TipBox CreateInstance(string _type)
        {
            if (_instance == null)
            {
                lock (lockHelper)
                {
                    if (_instance == null)
                    {
                        _instance = new TipBox();
                        text.IsVisible = true;
                        isViewText = false;
                        text.Location.X = x;
                        text.Location.Y = y;
                        text.Text = viewStr;
                        text.Tag = "ZgcTip" + type;
                        text.FontSpec = new FontSpec("宋体", 5f, System.Drawing.Color.Black, false, false, false);
                        timer = new Timer();
                        timer.Interval = 800;
                        timer.Tick += new EventHandler(timer_Tick);
                        type = _type;
                    }
                }
            }
            return _instance;
        }

        private static Timer timer;
        static TextObj text = new TextObj();
        static bool isViewText = false;
        static string viewStr = "";
        static string type = "sync";
        static bool isMove = false;
        /// <summary>
        /// 要显示的内容
        /// </summary>
        public string ViewStr
        {
            get { return viewStr; }
            set { viewStr = value; }
        }
        static double x = 0, y = 0;
        static double oldX = 0, oldY = 0;


        public void Show(double _x, double _y, bool _isMove = false)
        {
            if (zgcAnas == null)
            {
                //MessageBox.Show("未传递窗体或传递的不是麻醉单窗体");
                return;
            }
            try
            {
                isMove = _isMove;
                text.IsVisible = isViewText;
                x = _x;
                y = _y;
                text.Location.X = x;
                text.Location.Y = y;
                if (zgcAnas.MasterPane == null) return;
                TextObj text1 = (TextObj)zgcAnas.MasterPane.GraphObjList["ZgcTip" + type];
                if (text1 == null)
                {
                    ZUtil.DrawText(TipBox.viewStr, TipBox.x, TipBox.y, zgcAnas, 5f, "ZgcTip" + type, true, ZOrder.A_InFront);
                    isViewText = true;
                }
                else
                {
                    isViewText = true;
                    text = text1;
                    text.Location.X = x;
                    text.Location.Y = y;
                    text.IsVisible = isViewText;
                    text.Text = viewStr;
                }

                if (isViewText && type != "sync")
                {
                    if (!timer.Enabled)
                    {
                        timer.Start();
                    }
                }
            }
            catch (Exception)
            {
            }

        }
        public static void Hidden(bool isShow = false)
        {
            //因为移动中所以不隐藏
            if (isMove && isShow == false) return;
            text.IsVisible = false;
            if (type != "sync")
            {
                timer.Stop();
            }
            if (TipBox._instance.zgcAnas != null)
            {
                TipBox._instance.zgcAnas.AxisChange();
                TipBox._instance.zgcAnas.Refresh();
            }
            if (isShow == true)
            {
                TextObj text1 = (TextObj)TipBox._instance.zgcAnas.MasterPane.GraphObjList["ZgcTip" + type];
                if (text != null) TipBox._instance.zgcAnas.MasterPane.GraphObjList.Remove(text1);
                TipBox._instance.zgcAnas.Refresh();
            }
        }

        protected static void timer_Tick(object sender, EventArgs e)
        {
            if ((x == TipBox.oldX) && (y == TipBox.oldY) && isViewText)
            {
                TipBox.Hidden();
            }
            if (x != TipBox.oldX || y != TipBox.oldY)
            {
                TipBox.oldX = TipBox.x;
                TipBox.oldY = TipBox.y;
            }
        }
    }
}