XHZBPC/XHZB.Desktop/ZBlackboardWindow.xaml.cs

using Common.system;
using System;
using System.IO;
using System.Threading;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using XHZB.Desktop.Utils;
using XHZB.Model;

namespace XHZB.Desktop
{
    /// <summary>
    /// 黑板
    /// </summary>
    public partial class ZBlackboardWindow : Window
    {
        private readonly ZBPageModel pageData = new ZBPageModel();
        private readonly BlackboardNew myblackboard;
        private readonly int serverReturnCode = 0;
        //private readonly RegisterController registerController = new RegisterController();
        /// <summary>
        /// 保存图片路径
        /// </summary>
        private string Rfpath = string.Empty;
        private Color Color = Colors.White;
        private int Size = 3;
        /// <summary>
        /// 黑板
        /// </summary>
        public ZBlackboardWindow()
        {
            InitializeComponent();

            myblackboard = new BlackboardNew(blackboard_canvas);
            initData();
        }

        private void initData()
        {
            pageData.pagenum = 1;
            pageData.currpage = 1;
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "铅笔",
                Pic = "../Images/Blackboard/class_2s.png",
                Selected = true
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "颜色",
                Pic = "../Images/Blackboard/class_c1.png",
                Selected = false
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "粗细",
                Pic = "../Images/Blackboard/class_s1.png",
                Selected = false
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "橡皮",
                Pic = "../Images/Blackboard/class_3un.png",
                Selected = false
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "黑板颜色",
                Pic = "../Images/Blackboard/class_s5.png",
                Selected = false
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "清空",
                Pic = "../Images/Blackboard/class_6un.png",
                Selected = false
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "撤销",
                Pic = "../Images/Blackboard/class_4un.png",
                Selected = false
            });
            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "恢复",
                Pic = "../Images/Blackboard/class_5un.png",
                Selected = false
            });

            pageData.menuList.Add(new ZBMenuModel()
            {
                Name = "退出",
                Pic = "../Images/Blackboard/class_7un.png",
                Selected = false
            });

            DataContext = pageData;
        }

        private void menu_item_Click(object sender, RoutedEventArgs e)
        {
            int clickindex = 0;
            System.Collections.Generic.List<Button> buttons = VTHelper.FindChilds<Button>(toolbar_list, "toolbar_item");
            for (int i = 0; i < buttons.Count; i++)
            {
                if (buttons[i] == sender)
                {
                    clickindex = i;
                    break;
                }
            }
            if (clickindex < pageData.menuList.Count)
            {
                //ZBMenu menudata = pageData.menuList[clickindex];
                if (clickindex == 0)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                    if (pageData.menuList[0].Selected)
                    {
                        //tip_Color.Visibility = Visibility.Visible;
                    }
                    else
                    {
                        pageData.menuList[0].Selected = true;
                        pageData.menuList[3].Selected = false;
                        pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
                        pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
                        myblackboard.change_pen(Color, Size);
                    }

                }
                if (clickindex == 1)
                {
                    tip_Color.Visibility = Visibility.Visible;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                }
                if (clickindex == 2)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Visible;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                }
                else if (clickindex == 3)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                    pageData.menuList[0].Selected = false;
                    pageData.menuList[3].Selected = true;
                    pageData.menuList[0].Pic = "../Images/Blackboard/class_2un.png";
                    pageData.menuList[3].Pic = "../Images/Blackboard/class_3s.png";
                    myblackboard.change_erase();
                }
                else if (clickindex == 4)
                {
                    tip_BlackboardColor.Visibility = Visibility.Visible;
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                }
                else if (clickindex == 5)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                    myblackboard.clear();
                }
                else if (clickindex == 6)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                    myblackboard.undo();
                }
                else if (clickindex == 7)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                    myblackboard.redo();
                }
                else if (clickindex == 8)
                {
                    tip_Color.Visibility = Visibility.Collapsed;
                    tip_Size.Visibility = Visibility.Collapsed;
                    tip_BlackboardColor.Visibility = Visibility.Collapsed;
                    Hide();

                    //new Thread(new ThreadStart(new Action(() =>
                    //{
                    //    Dispatcher.Invoke(new Action(() =>
                    //    {
                    //        blackboard_canvas.Strokes.Clear();
                    //    }));
                    //    Thread.Sleep(500);
                    //    Dispatcher.Invoke(new Action(() =>
                    //    {
                    //        Hide();
                    //    }));
                    //}))).Start();


                }
            }
        }

        private readonly string imagepaths = string.Empty;

        private void save_button_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                string imagepath = APP.classRoomImagePath();

                if (!Directory.Exists(imagepath))
                {
                    Directory.CreateDirectory(imagepath);
                }
                TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
                string timestr = Convert.ToInt64(ts.TotalMilliseconds).ToString();
                string filepath = Path.Combine(imagepath, timestr + ".jpg");

                //TeachingDataStatic.ClassScreenshot.Add(filepath);//课堂统计截图
                Rfpath = string.Empty;
                Rfpath = APP.dbImagePath() + timestr + ".jpg";
                int width = (int)Math.Round(blackboard_canvas.ActualWidth);
                int height = (int)Math.Round(blackboard_canvas.ActualHeight);
                RenderTargetBitmap bmpCopied = new RenderTargetBitmap(
                        width,
                        height,
                        96,
                        96,
                        PixelFormats.Default
                    );
                DrawingVisual dv = new DrawingVisual();
                using (DrawingContext dc = dv.RenderOpen())
                {
                    VisualBrush vb = new VisualBrush(blackboard_canvas);
                    dc.DrawRectangle(
                        vb,
                        null,
                        new Rect(new System.Windows.Point(), new System.Windows.Size(width, height))
                        );
                }
                bmpCopied.Render(dv);
                using (FileStream file = new FileStream(filepath, FileMode.Create, FileAccess.Write))
                {
                    JpegBitmapEncoder encoder = new JpegBitmapEncoder
                    {
                        QualityLevel = 80
                    };
                    encoder.Frames.Add(BitmapFrame.Create(bmpCopied));
                    encoder.Save(file);
                }
                tip_tb.Text = "保存成功";
                tip_outer.Visibility = Visibility.Visible;
                ZDelayUtil.delay(3, Dispatcher, new Action(() =>
                {
                    tip_outer.Visibility = Visibility.Hidden;
                }));

                APP.BackgroundWorkerHelper.RunWorkerAsync(InvokeServering, InvokeServerCompate);
            }
            catch (Exception err)
            {
                Console.WriteLine(err.Message);
            }
        }

        private void add_button_Click(object sender, RoutedEventArgs e)
        {
            pageData.pagenum += 1;
            pageData.currpage = pageData.pagenum;
            myblackboard.changepage(pageData.currpage - 1);
        }

        private void last_button_Click(object sender, RoutedEventArgs e)
        {
            if (pageData.currpage > 1)
            {
                pageData.currpage -= 1;
                myblackboard.changepage(pageData.currpage - 1);
            }
        }

        private void next_btn_Click(object sender, RoutedEventArgs e)
        {
            if (pageData.currpage < pageData.pagenum)
            {
                pageData.currpage += 1;
                myblackboard.changepage(pageData.currpage - 1);
            }
        }

        /// <summary>
        /// 课堂--保存图片服务-调用
        /// </summary>
        /// <returns></returns>
        private object InvokeServering()
        {
            //Savefile savefile = new Savefile
            //{
            //    roomid = Shared.TeachingData.REQ_StartClass.roomid,
            //    rfpath = Rfpath.Replace("\\", "/"),
            //    rftype = 1,
            //    createid = ZCommonData.loginUser.userid,
            //    schoolid = ZCommonData.loginUser.schoolid,
            //    createtime = DataProvider.TimestampTotalSeconds()
            //};
            //ZSqliteManger.insertClassData(new ClassData()
            //{
            //    unix = DataProvider.TimestampTotalSeconds(),
            //    roomid = ZCommonData.roomid,
            //    api = "savefile",
            //    json = ZJsonHelper.ToJson(savefile),
            //    askid = DataProvider.TimestampAddRandomNumber()
            //});
            return APP.ErrorMessage;
        }

        /// <summary>
        /// 课堂--保存图片服务-返回结果
        /// </summary>
        /// <returns></returns>
        public void InvokeServerCompate(object obj)
        {
            if (serverReturnCode == APP.ServerScuessCode)
            {
            }
        }

        /// <summary>
        /// 黑板页面关闭
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Window_Closed(object sender, EventArgs e)
        {
            click_closeClick();
        }

        #region 关闭委托

        /// <summary>
        /// 关闭委托 结束页面 创建人：赵耀 创建时间：2020年8月13日
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public delegate void CloseClick();

        /// <summary>
        /// 关闭委托 结束页面 创建人：赵耀 创建时间：2020年8月13日
        /// </summary>
        public event CloseClick click_closeClick;

        #endregion 关闭委托
        /// <summary>
        /// 画笔颜色事件 白色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnWhite_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Color = Colors.White;
            myblackboard.change_pen(Color, Size);
            tip_Color.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 画笔颜色事件 红色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnRed_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Color = Colors.Red;
            myblackboard.change_pen(Color, Size);
            tip_Color.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 画笔颜色事件 灰色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnGray_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Color = Colors.Gray;
            myblackboard.change_pen(Color, Size);
            tip_Color.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 画笔颜色事件 青色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnCyanBlue_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Color = Colors.LimeGreen;
            myblackboard.change_pen(Color, Size);
            tip_Color.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 画笔颜色事件 黄色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnYellow_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Color = Colors.Gold;
            myblackboard.change_pen(Color, Size);
            tip_Color.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 画笔颜色事件 蓝色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnBlue_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Color = Colors.DeepSkyBlue;
            myblackboard.change_pen(Color, Size);
            tip_Color.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 细
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnFine_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Size = 3;
            myblackboard.change_pen(Color, Size);
            tip_Size.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 中
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnIn_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Size = 6;
            myblackboard.change_pen(Color, Size);
            tip_Size.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 粗
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnCrude_Click(object sender, RoutedEventArgs e)
        {
            pageData.menuList[0].Selected = true;
            pageData.menuList[3].Selected = false;
            pageData.menuList[0].Pic = "../Images/Blackboard/class_2s.png";
            pageData.menuList[3].Pic = "../Images/Blackboard/class_3un.png";
            Size = 12;
            myblackboard.change_pen(Color, Size);
            tip_Size.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 黑板颜色 白色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnWhites_Click(object sender, RoutedEventArgs e)
        {
            blackboard_canvas.Background = new SolidColorBrush(Colors.White);
            tip_BlackboardColor.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 黑板颜色 黑色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnBlack_Click(object sender, RoutedEventArgs e)
        {
            blackboard_canvas.Background = new SolidColorBrush(Colors.Black);
            tip_BlackboardColor.Visibility = Visibility.Collapsed;
        }
        /// <summary>
        /// 黑板颜色 绿色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BtnGreen_Click(object sender, RoutedEventArgs e)
        {
            blackboard_canvas.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#043a25"));
            tip_BlackboardColor.Visibility = Visibility.Collapsed;
        }
    }
}