using Common.system;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using TStudyDigitalPen.HID;

namespace XHPZ.Desktop
{
    /// <summary>
    /// PracticeWindow.xaml 的交互逻辑
    /// </summary>
    public partial class PracticeWindow : Window
    {
        private DrawingAttributes drawingAttributes;
        private DrawingAttributes drawing;
        /// <summary>
        /// 屏幕宽
        /// </summary>
        internal double pwidth = SystemParameters.PrimaryScreenWidth;
        /// <summary>
        /// 屏幕高
        /// </summary>
        internal double pHeight = SystemParameters.PrimaryScreenHeight;
        /// <summary>
        /// 当前画笔颜色
        /// </summary>
        private Color Colour = Colors.Red;
        /// <summary>
        /// 当前画笔宽
        /// </summary>
        private int Wit = 2;
        /// <summary>
        /// A4点阵纸点阵宽度
        /// </summary>
        private const int A4_WIDTH = 5600;

        /// <summary>
        /// A4点阵纸点阵高度
        /// </summary>
        private const int A4_HEIGHT = 7920;
        /// <summary>
        /// 引用user32.dll动态链接库（windows api），
        /// 使用库中定义 API：SetCursorPos
        /// 设置光标位置
        /// </summary>
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        private static extern int SetCursorPos(int x, int y);
        public PracticeWindow()
        {
            InitializeComponent();
            InitPen();
            InitTQLPPen();
        }
        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="_imgPath"></param>
        public void Initialize(string _imgPath = null)
        {
            blackboard_canvas.Strokes.Clear();
            blackboard_canvas.UseCustomCursor = true;
            //创建 DrawingAttributes 类的一个实例  
            drawingAttributes = new DrawingAttributes();
            blackboard_canvas.DefaultDrawingAttributes = drawingAttributes;
            Pen();
        }
        public void InitPen()
        {
            //stroke = new List<System.Drawing.Point>();
            //获取点阵笔实例，并绑定点阵笔事件
            //将授权文件内容传入，获取点阵笔对象实例
            APP.digitalPen = DigitalPenHID.GetInstance(certificates.MyLicense.Bytes);
            //绑定笔连接事件
            APP.digitalPen.PenConnected += OnPenConnect;
            //绑定笔断开事件
            APP.digitalPen.PenDisconnect += OnPenDisconnect;
            //绑定笔书写输出坐标事件
            APP.digitalPen.PenCoordinate += OnPenCoordinate;
            //绑定抬笔事件
            APP.digitalPen.PenUp += OnPenUp;
            //绑定落笔事件
            APP.digitalPen.PenDown += OnPenDown;
            APP.digitalPen.PenBatteryCapacity += OnBatteryCapacity;
            APP.digitalPen.PenMemoryFillLevel += OnMemoryFillLevel;
            //完成初始化点阵笔，开始与点阵笔通信
            ERROR_CODE ER = APP.digitalPen.Start();
            //判断是否成功
            //if (ER != ERROR_CODE.ERROR_OK)
            //{
            //    MessageWindow.Show("初始化失败，授权过期，返回值：" + ER.ToString());
            //}
        }
        /// <summary>
        /// 画笔
        /// </summary>
        public void Pen()
        {
            blackboard_canvas.EditingMode = InkCanvasEditingMode.Ink;
            blackboard_canvas.UseCustomCursor = true;
            drawingAttributes.FitToCurve = true;
            drawingAttributes.IgnorePressure = false;
            blackboard_canvas.Cursor = Cursors.Pen;
        }
        /// <summary>
        /// 笔连接
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenConnect(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenConnect);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                APP.PenSerial = penSerial;
                APP.PenStatus = true;
                this.penSerial = penSerial;
                //连接后，在获取笔数据前，可以清除笔内的历史数据
                //APP.digitalPen.ClearMemory(penSerial);

                //开始接收笔数据
                APP.digitalPen.GetPenData(penSerial);
                APP.W_mainWindow.UpdateDevStatus();
                ////Dispatcher.Invoke(new Action(() =>
                ////{
                ////    txbNotConnected.Text = "已连接";
                ////    txbNotConnecteds.Text = "已连接";
                ////}));

            }
        }
        /// <summary>
        /// 笔断开
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenDisconnect(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenDisconnect);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                APP.PenSerial = penSerial;
                APP.PenStatus = false;
                APP.W_mainWindow.UpdateDevStatus();
                //UpdateDevStatus();
                ////Dispatcher.Invoke(new Action(() =>
                ////{
                ////    txbNotConnected.Text = "未连接";
                ////    txbNotConnecteds.Text = "未连接";
                ////}));
            }
        }
        /// <summary>
        /// 笔序列号
        /// </summary>
        private string penSerial;

        /// <summary>
        /// 笔是否在点
        /// </summary>
        private bool isPenDown;
        /// <summary>
        /// 笔书写，收到坐标
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        /// <param name="pageSerial">点阵地址</param>
        /// <param name="cx">x坐标</param>
        /// <param name="cy">y坐标</param>
        /// <param name="force">压力值</param>
        private void OnPenCoordinate(ulong time, string penSerial, int penType, string pageSerial, int cx, int cy, byte force)
        {
            if (this.Visibility == Visibility.Visible)
            {
                if (CheckAccess())
                {
                    Action<ulong, string, int, string, int, int, byte> ac = new Action<ulong, string, int, string, int, int, byte>(OnPenCoordinate);
                    Dispatcher.Invoke(ac, new object[] { time, pageSerial, penType, pageSerial, cx, cy, force });
                }
                else
                {
                    //判断是否是落笔后输出的坐标，在设置悬浮模式下，落笔前的悬浮坐标不绘制
                    if (!isPenDown)
                    {
                        return;
                    }
                    //stroke.Add(new System.Drawing.Point(cx, cy));

                    double PropW = blackboard_canvas.ActualWidth / A4_HEIGHT;
                    double PropH = blackboard_canvas.ActualHeight / A4_WIDTH;
                    //点
                    double testX = cy * PropW;
                    double testY = (A4_WIDTH - cx) * PropH;
                    //pageSerial //点阵IP地址  与打印的页面关联
                    if (true)
                    {
                        Dispatcher.Invoke(new Action(() =>
                        {
                            float Pressure = force / 100f;
                            ////添加笔画
                            //myblackboard.changepages(testX, testY, false, Color, PenSize, APP.pageData.currpage - 1, Pressure);

                            if (isFirst)
                            {
                                stylusPoint.X = testX;
                                stylusPoint.Y = testY;
                                //_color.A = (byte)(Pressure * 255f);
                                //stylusPoint.PressureFactor = Pressure;

                                //for(int i=0;i<100;i++)
                                //{
                                //    stylusPoint.X--;
                                //    stylusPoint.Y--;
                                //    stylusPoints.Add(stylusPoint);
                                //}
                                stylusPoints.Add(stylusPoint);
                                if (stylusPoints.Count > 1)
                                {
                                    drawing = new DrawingAttributes
                                    {
                                        Color = Colour,
                                        Width = Wit * 4.5,
                                        Height = Wit * 4.5,
                                        FitToCurve = true,
                                        IgnorePressure = false
                                    };

                                    //blackboard_canvas.Strokes = new StrokeCollection();
                                    strokes = new Stroke(stylusPoints);


                                    strokes.DrawingAttributes = drawing;
                                    //blackboard_canvas.Strokes.Add(strokes);

                                    blackboard_canvas.Strokes.Add(strokes);
                                    isFirst = false;
                                }
                            }
                            else
                            {
                                if (blackboard_canvas.Strokes.Count > 0)
                                {
                                    stylusPoint.X = testX;
                                    stylusPoint.Y = testY;
                                    stylusPoints.Add(stylusPoint);
                                    strokes = new Stroke(stylusPoints);
                                    drawing = new DrawingAttributes
                                    {
                                        Color = Colour,
                                        Width = Wit * 4.5,
                                        Height = Wit * 4.5,
                                        FitToCurve = true,
                                        IgnorePressure = false
                                    };
                                    strokes.DrawingAttributes = drawing;

                                    //viewModel.InkStrokes.Add(strokes);
                                    blackboard_canvas.Strokes[blackboard_canvas.Strokes.Count - 1] = strokes;
                                }
                            }

                            //设置鼠标位置
                            if (testX > 0 && testY > 0)
                            {
                                //System.Windows.Point getP = scroMain.PointToScreen(new System.Windows.Point(testX, testY - scroMain.VerticalOffset));
                                SetCursorPos((int)((float)testX * (PrimaryScreen.DpiX / 96f)), (int)((float)testY * (PrimaryScreen.DpiY / 96f)));
                            }
                        }));
                    }

                }
            }
        }
        bool isFirst = true;
        private StylusPointCollection stylusPoints = new StylusPointCollection();
        private StylusPoint stylusPoint = new StylusPoint();
        private Stroke strokes;



        /// <summary>
        /// 抬笔
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenUp(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenUp);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                isPenDown = false;
                APP.PenSerial = penSerial;

                //stroke.Clear();
            }
            //if (APP.pageData.currpage > 0)
            //{
            //    Dispatcher.Invoke(new Action(() =>
            //    {
            //        myblackboard.changepages(0, 0, true, Color, PenSize, APP.pageData.currpage - 1, 0);
            //    }));
            //}


            if (strokes != null && strokes.StylusPoints.Count > 1)
            {
                isFirst = true;
            }
            stylusPoints = new StylusPointCollection();
            stylusPoint = new StylusPoint();
            strokes = null;
        }
        /// <summary>
        /// 落笔
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenDown(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenDown);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                isPenDown = true;
                if (APP.W_PracticeWindow != null && APP.W_PracticeWindow.Visibility == Visibility.Hidden)
                {
                    PenPractice();
                }
            }
        }

        void PenPractice()
        {
            Dispatcher.Invoke(() =>
            {
                if (APP.W_PracticeWindow == null)
                {
                    APP.W_PracticeWindow = new PracticeWindow
                    {
                        Width = pwidth,
                        Height = pHeight,
                        Left = 0,
                        Top = 0
                    };
                }
                APP.W_PracticeWindow.Topmost = true;
                APP.W_PracticeWindow.Initialize();
                APP.W_PracticeWindow.Show();
            });
        }
        /// <summary>
        /// 电池电量
        /// </summary>
        /// <param name="time"></param>
        /// <param name="penSerial"></param>
        /// <param name="penType"></param>
        /// <param name="capacity"></param>
        private void OnBatteryCapacity(ulong time, string penSerial, int penType, byte capacity)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int, byte> action = new Action<ulong, string, int, byte>(OnBatteryCapacity);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType, capacity });
            }
            else
            {
                //System.Windows.MessageWindow.Show("电池电量:" + capacity.ToString());
            }
        }
        /// <summary>
        /// 已用存储
        /// </summary>
        /// <param name="time"></param>
        /// <param name="penSerial"></param>
        /// <param name="penType"></param>
        /// <param name="fillLevel"></param>
        private void OnMemoryFillLevel(ulong time, string penSerial, int penType, byte fillLevel)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int, byte> action = new Action<ulong, string, int, byte>(OnMemoryFillLevel);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType, fillLevel });
            }
            else
            {
                //System.Windows.MessageWindow.Show("存储:" + fillLevel.ToString());
            }
        }
        /// <summary>
        /// 退出批注
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void blackboard_canvas_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            ReturnPractice();
            SwitchPages();
        }
        /// <summary>
        /// 退出批注并清空画板
        /// </summary>
        public void ReturnPractice()
        {
            blackboard_canvas.Strokes.Clear();
            new Thread(new ThreadStart(new Action(() =>
            {

                Thread.Sleep(500);
                Dispatcher.Invoke(() =>
                {
                    Owner = null;
                    APP.W_PracticeWindow.Hide();
                });
            }))).Start();
        }
        /// <summary>
        /// 鼠标中建点击
        /// </summary>
        void SwitchPages()
        {
            try
            {
                new Thread(() =>
                {
                    Thread.Sleep(500);
                    MouseEventCommon.MouseMiddleClickEvent(0);
                }).Start();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }


        #region 腾千里手写笔
        /// <summary>
        /// 是否在书写
        /// </summary>
        bool isTQLPenDown = false;
        /// <summary>
        /// TQL点阵笔宽高
        /// </summary>
        static float TQLA4_WIDTH = (float)1075 / (float)150 * (float)25.4 / (float)1.524; //OID4
        static float TQLA4_HEIGHT = (float)1512 / (float)150 * (float)25.4 / (float)1.524;
        /// <summary>
        /// 初始化
        /// </summary>
        public void InitTQLPPen()
        {
            if (APP.TQLPenevents == null)
            {
                APP.TQLPenevents = new PenEvents();
            }
        }
        /// <summary>
        /// 笔落下
        /// </summary>
        public void TQLDown()
        {
            isTQLPenDown = true;
            if(APP.W_PracticeWindow!=null&&APP.W_PracticeWindow.Visibility==Visibility.Hidden)
            {
                PenPractice();
            }
          
            if (strokes != null && strokes.StylusPoints.Count > 1)
            {
                isFirst = true;
            }
            stylusPoints = new StylusPointCollection();
            stylusPoint = new StylusPoint();
            strokes = null;
        }
        /// <summary>
        /// 笔抬起
        /// </summary>
        public void TQLUp()
        {
            isTQLPenDown = false;

            if (strokes != null && strokes.StylusPoints.Count > 1)
            {
                isFirst = true;
            }
            stylusPoints = new StylusPointCollection();
            stylusPoint = new StylusPoint();
            strokes = null;
        }
        /// <summary>
        /// 笔书写
        /// </summary>
        /// <param name="cx"></param>
        /// <param name="cy"></param>
        /// <param name="force"></param>
        public void TQLPenWrite(double cx, double cy, int force)
        {
            if (this.Visibility == Visibility.Visible)
            {
                //判断是否是落笔后输出的坐标，在设置悬浮模式下，落笔前的悬浮坐标不绘制
                if (!isTQLPenDown)
                {
                    return;
                }
                double PropW = blackboard_canvas.ActualWidth / TQLA4_HEIGHT;
                double PropH = blackboard_canvas.ActualHeight / TQLA4_WIDTH;

                double tempX = cy * PropW;
                double tempY = (TQLA4_WIDTH - cx) * PropH;
                Dispatcher.Invoke(new Action(() =>
                {
                    //0~1023,亦即有 1024 阶供应用软件后续应用之用，如笔锋笔触，暂无用
                    float Pressure = (float)force / 1023f;
                    //添加笔画
                    if (isFirst)
                    {
                        stylusPoint.X = tempX;
                        stylusPoint.Y = tempY;
                        stylusPoints.Add(stylusPoint);
                        if (stylusPoints.Count > 1)
                        {
                            drawing = new DrawingAttributes
                            {
                                Color = Colour,
                                Width = Wit * 4.5,
                                Height = Wit * 4.5,
                                FitToCurve = true,
                                IgnorePressure = false
                            };

                            strokes = new Stroke(stylusPoints);

                            strokes.DrawingAttributes = drawing;

                            blackboard_canvas.Strokes.Add(strokes);
                            isFirst = false;
                        }
                    }
                    else
                    {
                        if (blackboard_canvas.Strokes.Count > 0)
                        {
                            stylusPoint.X = tempX;
                            stylusPoint.Y = tempY;
                            stylusPoints.Add(stylusPoint);
                            strokes = new Stroke(stylusPoints);
                            drawing = new DrawingAttributes
                            {
                                Color = Colour,
                                Width = Wit * 4.5,
                                Height = Wit * 4.5,
                                FitToCurve = true,
                                IgnorePressure = false
                            };
                            strokes.DrawingAttributes = drawing;

                            //viewModel.InkStrokes.Add(strokes);
                            blackboard_canvas.Strokes[blackboard_canvas.Strokes.Count - 1] = strokes;
                        }
                    }

                    //设置鼠标位置
                    if (tempX > 0 && tempY > 0)
                    {
                        //System.Windows.Point getP = scroMain.PointToScreen(new System.Windows.Point(testX, testY - scroMain.VerticalOffset));
                        SetCursorPos((int)((float)tempX * (PrimaryScreen.DpiX / 96f)), (int)((float)tempY * (PrimaryScreen.DpiY / 96f)));
                    }
                }));
            }
        }
        #endregion

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            Hide();
        }
    }
}