using MuchInfo.Chart.Data;
using MuchInfo.Chart.Data.EnumTypes;
using MuchInfo.Chart.Infrastructure.Helpers;
using MuchInfo.Chart.Infrastructure.Utilities;
using MuchInfo.Chart.WPF.Controls.Editors;
using MuchInfo.Chart.WPF.Controls.Utilities;
using MuchInfo.Chart.WPF.Helpers;
using MuchInfo.Chart.WPF.Primitives.Interfaces;
using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Linq;

namespace MuchInfo.Chart.WPF.Primitives.Drawing
{
    public sealed class DrawingText : Drawing1PointBase
    {
        #region Fields

        private bool _flag;
        private double _fontSize;
        private bool _isMouseDown;
        private Border _labelBoder;
        private Popup _popup;
        private Point _position;

        //鼠标移到上面时记录上次画线工具
        private IDrawingTool _preDrawingTool;
        private string _text;

        #endregion Fields

        #region Constructors

        /// <summary>
        /// Initializes a new instance of the <see cref="DrawingText"/> class.
        /// </summary>
        public DrawingText()
        {
            this._text = LanguageManager.FindResource(LanguageConst.DrawingTool_Edit_DefaultText);
            this._fontSize = 12;
            this._isMouseDown = false;
        }

        #endregion Constructors

        #region Properties

        #region Public Properties

        /// <summary>
        /// Gets or sets the size of the font.
        /// </summary>
        public double FontSize
        {
            get
            {
                return this._fontSize;
            }
            set
            {
                var flag = !this._fontSize.Equals(value);
                if (flag)
                {
                    this._fontSize = value;
                    this.Label.FontSize = (this._fontSize);
                    //this.PropertyChanged();
                }
            }
        }

        /// <summary>
        /// Gets or sets a value indicating whether this instance is remove click.
        /// </summary>
        public bool IsRemoveClick
        {
            get;
            set;
        }

        /// <summary>
        /// 获取和设置the label
        /// </summary>
        public TextBlock Label
        {
            get;
            set;
        }

        /// <summary>
        /// 获取和设置the label border
        /// </summary>
        public Border LabelBorder
        {
            get
            {
                return this._labelBoder;
            }
            set
            {
                var mouseMove = new MouseEventHandler(this.LabelBoder_MouseMove);
                var mouseLeftButtonUp = new MouseButtonEventHandler(this.LabelBoder_MouseLeftButtonUp);
                var lostMouseCapture = new MouseEventHandler(this.LabelBoder_LostMouseCapture);
                var mouseButtonEventHandler2 = new MouseButtonEventHandler(this.LabelBoder_MouseLeftButtonDown);
                var mouseLeave = new MouseEventHandler(this.LabelBoder_MouseLeave);
                var mouseEnter = new MouseEventHandler(this.LabelBoder_MouseEnter);
                var mouseRightButtonUp = new MouseButtonEventHandler(this.LabelBoder_MouseRightButtonUp);
                bool flag = this._labelBoder != null;
                if (flag)
                {
                    this._labelBoder.MouseMove -= (mouseMove);
                    this._labelBoder.MouseLeftButtonUp -= (mouseLeftButtonUp);
                    this._labelBoder.LostMouseCapture -= (lostMouseCapture);
                    this._labelBoder.MouseLeftButtonDown -= (mouseButtonEventHandler2);
                    this._labelBoder.MouseRightButtonUp -= (mouseRightButtonUp);
                    this._labelBoder.MouseLeave -= (mouseLeave);
                    this._labelBoder.MouseEnter -= (mouseEnter);
                }
                this._labelBoder = value;
                flag = (this._labelBoder != null);
                if (flag)
                {
                    this._labelBoder.MouseMove += (mouseMove);
                    this._labelBoder.MouseLeftButtonUp += (mouseLeftButtonUp);
                    this._labelBoder.LostMouseCapture += (lostMouseCapture);
                    this._labelBoder.MouseLeftButtonDown += (mouseButtonEventHandler2);
                    this._labelBoder.MouseRightButtonUp += (mouseRightButtonUp);
                    this._labelBoder.MouseLeave += (mouseLeave);
                    this._labelBoder.MouseEnter += (mouseEnter);
                }
            }
        }

        /// <summary>
        /// 获取和设置the popup
        /// </summary>
        public Popup Popup
        {
            get
            {
                return this._popup;
            }
            set
            {
                var eventHandler = new EventHandler(this.Popup_Closed);
                bool flag = this._popup != null;
                if (flag)
                {
                    this._popup.Closed -= (eventHandler);
                }
                this._popup = value;
                flag = (this._popup != null);
                if (flag)
                {
                    this._popup.Closed += (eventHandler);
                }
            }
        }

        /// <summary>
        /// Gets the name of the root.
        /// </summary>
        public override string RootName
        {
            get
            {
                return "DrawText";
            }
        }

        /// <summary>
        /// 获取和设置the text
        /// </summary>
        public string Text
        {
            get
            {
                return this._text;
            }
            set
            {
                if (!_text.Equals(value))
                {
                    this._text = value;
                    this.Label.Text = this._text;
                    //this.PropertyChanged();
                }
            }
        }

        #endregion Public Properties

        #region Internal Properties

        /// <summary>
        /// 获取和设置the scope rect
        /// </summary>
        internal Rect ScopeRect
        {
            get;
            set;
        }

        #endregion Internal Properties

        #endregion Properties

        #region Methods

        #region Public Methods

        /// <summary>
        /// Abbreviations this instance.
        /// </summary>
        /// <returns>System.String.</returns>
        public override string Abbreviation()
        {
            return MenuDescription();
        }

        /// <summary>
        /// Additionals the editors.
        /// </summary>
        /// <returns>List{ControlPair}.</returns>
        public override List<ControlPair> AdditionalEditors()
        {
            return new List<ControlPair>();
        }

        /// <summary>
        /// Determines whether this instance [can plot on all symbols].
        /// </summary>
        /// <returns><c>true</c> if this instance [can plot on all symbols]; otherwise, <c>false</c>.</returns>
        public override bool CanPlotOnAllSymbols()
        {
            return false;
        }

        /// <summary>
        /// Determines whether this instance [can save by percent].
        /// </summary>
        /// <returns><c>true</c> if this instance [can save by percent]; otherwise, <c>false</c>.</returns>
        public override bool CanSaveByPercent()
        {
            return true;
        }

        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns>IDrawingTool.</returns>
        public override IDrawingTool Clone()
        {
            return new DrawingText
            {
                mColor = Colors.White
            };
        }

        /// <summary>
        /// Descriptions this instance.
        /// </summary>
        /// <returns>System.String.</returns>
        public override string Description()
        {
            return this.MenuDescription();
        }

        /// <summary>
        /// Icons this instance.
        /// </summary>
        /// <returns>ImageSource.</returns>
        public override ImageSource Icon()
        {
            ImageSource result = null;
            try
            {
                result = ImageHelper.GetImage("text.png");
            }
            catch (Exception expr_3A)
            {
                throw expr_3A;
            }
            return result;
        }

        /// <summary>
        /// Menus the description.
        /// </summary>
        /// <returns>System.String.</returns>
        public override string MenuDescription()
        {
            return LanguageManager.FindResource(LanguageConst.DrawingTool_Edit_Description_Text);
        }

        public override DrawingToolType ToolType()
        {
            return DrawingToolType.Text;
        }

        #endregion Public Methods

        #region Protected Methods

        /// <summary>
        /// Adds from info.
        /// </summary>
        /// <param name="info">The info.</param>
        protected override void AddFromInfo(DrawingToolInfo info)
        {
            base.AddFromInfo(info);

            XElement xElement = XElement.Parse(info.XML);
            bool flag = xElement.Name == "Root";
            if (flag)
            {
                bool flag2 = xElement.Attribute("StringData1") != null;
                if (flag2)
                {
                    this._text = xElement.Attribute("StringData1").Value;
                }
                flag2 = (xElement.Attribute("Value1") != null);
                if (flag2)
                {
                    this._fontSize = (double)XMLHelp.ParseSingle(xElement.Attribute("Value1").Value);
                }
            }
        }

        /// <summary>
        /// Adds to info.
        /// </summary>
        /// <param name="info">The info.</param>
        protected override void AddToInfo(DrawingToolInfo info)
        {
            base.AddToInfo(info);
            var xElement = new XElement("Root");
            xElement.Add(new XAttribute("StringData1", this._text));
            xElement.Add(new XAttribute("Value1", (float)this._fontSize));
            info.XML = xElement.ToString();
        }

        /// <summary>
        /// Colors the changed.
        /// </summary>
        protected override void ColorChanged()
        {
            bool flag = this.Label != null;
            if (flag)
            {
                this.Label.Foreground = (new SolidColorBrush(this.mColor));
            }
        }

        /// <summary>
        /// Gets the drawing plots.
        /// </summary>
        /// <param name="owner">The owner.</param>
        /// <param name="aScale">A scale.</param>
        /// <param name="aRect">A rect.</param>
        /// <returns>List{FrameworkElement}.</returns>
        protected override List<FrameworkElement> GetDrawingPlots(Chart owner, ScaleLayer aScale, Rect aRect)
        {
            var list = new List<FrameworkElement>();

            this.ScopeRect = aRect;
            bool flag = this.Label == null;
            if (flag)
            {
                this.Label = new TextBlock
                {
                    Cursor = Cursors.Hand,
                    FontSize = this._fontSize
                };
            }
            this.Label.Foreground = (new SolidColorBrush(this.mColor));
            this.Label.Text = (this._text);
            flag = (this.LabelBorder == null);
            if (flag)
            {
                this.LabelBorder = new Border
                {
                    Background = (new SolidColorBrush(Colors.Transparent)),
                    Child = this.Label
                };
                LabelBorder.CornerRadius = new CornerRadius(4.0);
                LabelBorder.Padding = new Thickness(2.0);
            }
            this.MoveDrawingToNewLocations(aRect);
            list.Add(this.LabelBorder);

            return list;
        }

        /// <summary>
        /// Moves the drawing to new locations.
        /// </summary>
        /// <param name="aRect">A rect.</param>
        protected override void MoveDrawingToNewLocations(Rect aRect)
        {
            bool flag = this.LabelBorder != null;
            if (flag)
            {
                this.LabelBorder.SetValue(Canvas.LeftProperty, this.mLastX1);
                this.LabelBorder.SetValue(Canvas.TopProperty, this.mLastY1);
                flag = (this.Popup != null);
                if (flag)
                {
                    Point point = GeometryHelper.PositionOfControlInApp(this.LabelBorder, this.Chart.RootPanel);
                    this.Popup.HorizontalOffset = point.X - 7.9;// + 3.0;
                    this.Popup.VerticalOffset = point.Y - 6; //+ 3.0;
                }
            }
        }

        /// <summary>
        /// Shows the drag handle.
        /// </summary>
        protected override bool ShowDragHandle()
        {
            //画Text，不需要draghandle,  true:左上角有个隐藏的DrawingSelectionArea
            //drawingpointbase.cs - GetPlots用到
            return false;
        }

        #endregion Protected Methods

        #region Private Methods

        /// <summary>
        /// Handles the LostMouseCapture event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_LostMouseCapture(object sender, MouseEventArgs e)
        {
            bool flag = this.Chart != null;
            if (flag)
            {
                this.Chart.LockPainting = false;
                this.Chart.Refresh();
            }

            this._flag = false;
            this._isMouseDown = false;
        }

        /// <summary>
        /// Handles the MouseEnter event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_MouseEnter(object sender, MouseEventArgs e)
        {
            if (this.Chart == null) return;
            if (this.Chart.PointerType == PointerType.Drawing)
            {
                this.Label.Cursor = Cursors.None;
                _preDrawingTool = this.Chart.CurrentDrawingTool;
                this.Chart.PointerType = PointerType.Cursor;
                this.Chart.SetCursorImagePos(true, e);
            }
            else
            {
                this.Label.Cursor = this.Chart.PointerType == PointerType.Erase ? Cursors.Arrow : Cursors.Hand;
                this.LabelBorder.Background = new SolidColorBrush(Color.FromArgb(100, 120, 120, 120));
            }
        }

        /// <summary>
        /// Handles the MouseLeave event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_MouseLeave(object sender, MouseEventArgs e)
        {
            if (_preDrawingTool == null)
            {
                this.LabelBorder.Background = new SolidColorBrush(Colors.Transparent);
            }
            else
            {
                this.Chart.CurrentDrawingTool = _preDrawingTool;
                this.Chart.SetCursorImagePos(true, e);
                _preDrawingTool = null;
            }
        }

        /// <summary>
        /// Handles the MouseLeftButtonDown event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseButtonEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (_preDrawingTool != null) return;

            bool flag = this.Chart != null;
            if (flag)
            {
                this.Chart.LockPainting = true;
            }
            this._position = e.GetPosition((UIElement)this.LabelBorder.Parent);
            this._isMouseDown = true;
            this._flag = false;
            this.LabelBorder.CaptureMouse();
            this.PrepareToMove();
        }

        /// <summary>
        /// Handles the MouseLeftButtonUp event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseButtonEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            if (_preDrawingTool != null) return;

            bool flag = this.Chart != null;
            if (flag)
            {
                this.Chart.LockPainting = false;
            }
            flag = !this._flag;
            if (flag)
            {
                bool flag2 = Chart.PointerType == PointerType.Erase;
                if (flag2)
                {
                    this.Delete();
                }
                else
                {
                    //右键菜单代替，统一画线工具风格
                    //this.ShowDrawTextEditor();
                }
            }
            else
            {
                this.MovePlot(e.GetPosition((UIElement)this.LabelBorder.Parent));
                bool flag2 = this.OwnerSpec != null;
                if (flag2)
                {
                    this.OwnerSpec.ToolChanged(this);
                }
                this._isMouseDown = false;
                flag2 = (this.Chart != null);
                if (flag2)
                {
                    this.Chart.Refresh();
                }
            }
            this.LabelBorder.ReleaseMouseCapture();
            this._isMouseDown = false;
            this._flag = false;
        }

        /// <summary>
        /// Handles the MouseMove event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_MouseMove(object sender, MouseEventArgs e)
        {
            bool flag = this.Chart != null && Chart.PointerType == PointerType.Erase;
            if (flag)
            {
                this.Chart.SetCursorImagePos(true, e);
            }
            flag = this._isMouseDown;
            if (flag)
            {
                Point position = e.GetPosition((UIElement)this.LabelBorder.Parent);
                float num = GeometryHelper.DistanceBetweenPoints(this._position, position);
                flag = (num > 8f);
                if (flag)
                {
                    this._flag = true;
                }
                flag = this._flag;
                if (flag)
                {
                    this.MovePlot(position);
                }
            }
        }

        /// <summary>
        /// Handles the MouseRightButtonUp event of the LabelBoder control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MouseButtonEventArgs"/> instance containing the event data.</param>
        private void LabelBoder_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
        {
            this.ShowPopupMenu(e);
            e.Handled = true;
        }

        /// <summary>
        /// Moves the plot.
        /// </summary>
        /// <param name="curPos">The cur pos.</param>
        private void MovePlot(Point curPos)
        {
            var parent = (FrameworkElement)this.LabelBorder.Parent;
            if (parent == null) return;
            var height = (float)(parent.ActualHeight - this.LabelBorder.ActualHeight + 10);
            height = Math.Max(0, height);

            var width = (float)parent.ActualWidth;
            width = Math.Max(0, width);

            curPos.X = Math.Max(0, curPos.X);
            curPos.Y = Math.Max(0, curPos.Y);
            curPos.X = Math.Min(curPos.X, width);
            curPos.Y = Math.Min(curPos.Y, height);

            this.MovePlot(this._position, curPos, new Point(width, height));
        }

        /// <summary>
        /// Handles the Closed event of the Popup control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        private void Popup_Closed(object sender, EventArgs e)
        {
            if (this.IsRemoveClick)
            {
                this.IsRemoveClick = false;
                return;
            }

            this.Popup.Child = null;
            bool flag = this.Chart != null;
            if (string.IsNullOrWhiteSpace(this.Label.Text))
            {
                this.Delete();
            }

            if (flag)
            {
                this.Chart.LockPainting = false;
                this.PropertyChanged(); //this._chart.Refresh();
            }

            this.Popup = null;
        }

        /// <summary>
        /// Removes the text.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        private void RemoveText(object sender, EventArgs e)
        {
            this.Delete();
            this.IsRemoveClick = true;
        }

        /// <summary>
        /// Shows the editor.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        private void ShowEditor(object sender, EventArgs e)
        {
            bool flag = this.Chart != null;
            if (flag)
            {

                this.Popup = PopupManager.CreateOverlay(this.Chart.RootPanel);
                var drawingTextEditor = new DrawingTextEditor(this, this.Popup);
                this.Popup.Child = drawingTextEditor;
                drawingTextEditor.ShowIt();
                this.Popup.IsOpen = true;

                this.Chart.LockPainting = false;
                this.Chart.Refresh();
            }
        }

        /// <summary>
        /// Shows the popup menu.
        /// </summary>
        /// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
        private void ShowPopupMenu(MouseEventArgs e)
        {
            var popUpMenu = new PopupMenu(this.Chart.RootPanel) { FontSize = this.GetChartFontSize() };
            popUpMenu.AddItem(LanguageManager.FindResource(LanguageConst.DrawingTool_MenuItem_Edit), ImageHelper.GetImage("PropertiesHS.png"), new EventHandler(this.ShowEditor));
            popUpMenu.AddSeperator();
            popUpMenu.AddItem(LanguageManager.FindResource(LanguageConst.DrawingTool_MenuItem_Remove), ImageHelper.GetImage("DeleteHS.png"), new EventHandler(this.RemoveText));

            popUpMenu.Show(e, new Point(-5.0, -5.0));
        }

        #endregion Private Methods

        #endregion Methods

        #region Other

        //private void ShowDrawTextEditor()
        //{
        //    bool flag = this.Chart != null;
        //    if (flag)
        //    {
        //        this.Chart.LockPainting = true;
        //        this.Popup = PopupManager.CreateOverlay(this.Chart.RootPanel);
        //        var drawingTextEditor = new DrawingTextEditor(this, this.Popup);
        //        this.Popup.Child = drawingTextEditor;
        //        drawingTextEditor.ShowIt();
        //        this.Popup.IsOpen = true;
        //    }
        //}

        #endregion Other
    }
}