using MuchInfo.Chart.Infrastructure.Helpers;
using MuchInfo.Chart.WPF.Primitives.Interfaces;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;

namespace MuchInfo.Chart.WPF.Controls.Drawing
{
    /// <summary>
    /// ExtendableLine.xaml 的交互逻辑
    /// </summary>
    public partial class ExtendableLine : UserControl
    {
        #region Fields

        private double _strokeThickness;

        #endregion Fields

        #region Constructors

        public ExtendableLine(IDrawingTool aTool, Chart aChart)
        {
            this._strokeThickness = 1.0;
            this.InitializeComponent();
            this.grabLeft.Setup(aTool, 0, aChart);
            this.grabRight.Setup(aTool, 1, aChart);
            this.grabSelection.Setup(aTool, aChart);
            bool flag = aTool is IChannelDrawing;
            if (flag)
            {
                this.grabTop.Setup((IChannelDrawing)aTool, aChart);
                this.grabBot.Setup((IChannelDrawing)aTool, aChart);
            }
        }

        #endregion Constructors

        #region Properties

        #region Public Properties

        public Brush ChannelStroke
        {
            get
            {
                return this.lineTopTopMain.Stroke;
            }
            set
            {
                this.lineTopTopMain.Stroke = (value);
                this.lineTopTopLeft.Stroke = (value);
                this.lineTopTopRight.Stroke = (value);
                this.lineTopMain.Stroke = (value);
                this.lineTopLeft.Stroke = (value);
                this.lineTopRight.Stroke = (value);
                this.lineBotMain.Stroke = (value);
                this.lineBotLeft.Stroke = (value);
                this.lineBotRight.Stroke = (value);
                this.lineBotBotMain.Stroke = (value);
                this.lineBotBotLeft.Stroke = (value);
                this.lineBotBotRight.Stroke = (value);
            }
        }

        public Brush ExtensionStroke
        {
            get
            {
                return this.lineLeft.Stroke;
            }
            set
            {
                this.lineLeft.Stroke = (value);
                this.lineRight.Stroke = (value);
            }
        }

        public Brush Stroke
        {
            get
            {
                return this.lineMain.Stroke;
            }
            set
            {
                this.lineMain.Stroke = (value);
            }
        }

        public double StrokeThickness
        {
            get
            {
                return this._strokeThickness;
            }
            set
            {
                this._strokeThickness = value;
                this.lineMain.StrokeThickness = (this._strokeThickness);
                this.lineLeft.StrokeThickness = (this._strokeThickness);
                this.lineRight.StrokeThickness = (this._strokeThickness);
                this.lineTopTopMain.StrokeThickness = (value);
                this.lineTopTopLeft.StrokeThickness = (value);
                this.lineTopTopRight.StrokeThickness = (value);
                this.lineTopMain.StrokeThickness = (value);
                this.lineTopLeft.StrokeThickness = (value);
                this.lineTopRight.StrokeThickness = (value);
                this.lineBotMain.StrokeThickness = (value);
                this.lineBotLeft.StrokeThickness = (value);
                this.lineBotRight.StrokeThickness = (value);
                this.lineBotBotMain.StrokeThickness = (value);
                this.lineBotBotLeft.StrokeThickness = (value);
                this.lineBotBotRight.StrokeThickness = (value);
            }
        }

        public bool TopBottomGrabsVisible
        {
            get
            {
                return this.grabTop.Visibility == Visibility.Visible;
            }
            set
            {
                if (value)
                {
                    this.grabTop.Visibility = Visibility.Visible;
                    this.grabBot.Visibility = Visibility.Visible;
                }
                else
                {
                    this.grabTop.Visibility = Visibility.Collapsed;
                    this.grabBot.Visibility = Visibility.Collapsed;
                }
            }
        }

        #endregion Public Properties

        #endregion Properties

        #region Methods

        #region Public Methods

        public void HideBotBotLine()
        {
            this.lineBotBotLeft.Visibility = Visibility.Collapsed;
            this.lineBotBotMain.Visibility = Visibility.Collapsed;
            this.lineBotBotRight.Visibility = Visibility.Collapsed;
        }

        public void HideBotLine()
        {
            this.lineBotLeft.Visibility = Visibility.Collapsed;
            this.lineBotMain.Visibility = Visibility.Collapsed;
            this.lineBotRight.Visibility = Visibility.Collapsed;
        }

        public void HideTopLine()
        {
            this.lineTopLeft.Visibility = Visibility.Collapsed;
            this.lineTopMain.Visibility = Visibility.Collapsed;
            this.lineTopRight.Visibility = Visibility.Collapsed;
        }

        public void HideTopTopLine()
        {
            this.lineTopTopLeft.Visibility = Visibility.Collapsed;
            this.lineTopTopMain.Visibility = Visibility.Collapsed;
            this.lineTopTopRight.Visibility = Visibility.Collapsed;
        }

        public void SetBotBotPosition(Point p1, Point p2, bool ExtendLeft, bool ExtendRight, Rect bounds)
        {
            this.lineBotBotMain.Visibility = Visibility.Visible;
            this.lineBotBotMain.X1 = (p1.X);
            this.lineBotBotMain.Y1 = (p1.Y);
            this.lineBotBotMain.X2 = (p2.X);
            this.lineBotBotMain.Y2 = (p2.Y);
            this.MoveLeftLine(this.lineBotBotLeft, ExtendLeft, p1, p2, bounds);
            this.MoveRightLine(this.lineBotBotRight, ExtendRight, p1, p2, bounds);
        }

        public void SetBotPosition(Point p1, Point p2, bool ExtendLeft, bool ExtendRight, Rect bounds)
        {
            this.lineBotMain.Visibility = Visibility.Visible;
            this.lineBotMain.X1 = (p1.X);
            this.lineBotMain.Y1 = (p1.Y);
            this.lineBotMain.X2 = (p2.X);
            this.lineBotMain.Y2 = (p2.Y);
            this.MoveLeftLine(this.lineBotLeft, ExtendLeft, p1, p2, bounds);
            this.MoveRightLine(this.lineBotRight, ExtendRight, p1, p2, bounds);
        }

        public void SetChannelStrokeDash(DoubleCollection pattern)
        {
            this.lineTopTopLeft.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineTopTopMain.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineTopTopRight.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineTopLeft.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineTopMain.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineTopRight.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineBotLeft.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineBotMain.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineBotRight.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineBotBotLeft.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineBotBotMain.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineBotBotRight.StrokeDashArray = (this.CloneDoubleCollection(pattern));
        }

        public void SetExtensionStrokeDash(DoubleCollection pattern)
        {
            this.lineLeft.StrokeDashArray = (this.CloneDoubleCollection(pattern));
            this.lineRight.StrokeDashArray = (this.CloneDoubleCollection(pattern));
        }

        public void SetMainStrokeDash(DoubleCollection pattern)
        {
            this.lineMain.StrokeDashArray = (this.CloneDoubleCollection(pattern));
        }

        public void SetPosition(Point p1, Point p2, bool ExtendLeft, bool ExtendRight, Rect aRect)
        {
            Point pointA = p1;
            Point pointB = p2;

            //TODO：更改结束点
            //计算斜率
            double slope = GeometryHelper.LineSlope(ref p1, ref p2);

            if (pointB.Y < aRect.Top)
            {
                pointB = new Point(GeometryHelper.XFromLine(p1, slope, aRect.Top), aRect.Top);
            }

            if (pointB.Y > aRect.Bottom)
            {
                pointB = new Point(GeometryHelper.XFromLine(p1, slope, aRect.Bottom), aRect.Bottom);
            }


            if (pointB.X < aRect.Left)
            {
                pointB = new Point(aRect.Left, GeometryHelper.YFromLine(p1, slope, aRect.Left));
            }

            if (pointB.X > aRect.Width)
            {
                pointB = new Point(aRect.Width, GeometryHelper.YFromLine(p1, slope, aRect.Width));
            }


            //TODO:更改开始点
            if (pointA.Y < aRect.Top)
            {
                pointA = new Point(GeometryHelper.XFromLine(p2, slope, aRect.Top), aRect.Top);
            }

            if (pointA.Y > aRect.Bottom)
            {
                pointA = new Point(GeometryHelper.XFromLine(p2, slope, aRect.Bottom), aRect.Bottom);
            }


            if (pointA.X < aRect.Left)
            {
                pointA = new Point(aRect.Left, GeometryHelper.YFromLine(p2, slope, aRect.Left));
            }

            if (pointA.X > aRect.Width)
            {
                pointA = new Point(aRect.Width, GeometryHelper.YFromLine(p2, slope, aRect.Width));
            }


            this.lineMain.X1 = pointA.X;
            this.lineMain.Y1 = pointA.Y;
            this.lineMain.X2 = pointB.X;
            this.lineMain.Y2 = pointB.Y;



            ////拖动时间滑块，隐藏线
            this.Visibility = Visibility.Visible;
            if (this.lineMain.X1.Equals(this.lineMain.X2) && (this.lineMain.X1 >= aRect.Width || this.lineMain.X1 <= 0))
            {
                this.Visibility = Visibility.Collapsed;
            }
            else
            {
                this.grabSelection.SetPosition(pointA, pointB);

                this.MoveLeftLine(this.lineLeft, ExtendLeft, pointA, pointB, aRect);
                this.MoveRightLine(this.lineRight, ExtendRight, pointA, pointB, aRect);

                this.grabLeft.ShowPointGrab();
                this.grabRight.ShowPointGrab();

                bool flag = this.grabTop.Visibility == Visibility.Visible;
                if (flag)
                {
                    this.grabTop.DrawingChannelGrab_2829(true);
                    this.grabBot.DrawingChannelGrab_2829(false);
                }
            }
        }

        public void SetTopPosition(Point p1, Point p2, bool ExtendLeft, bool ExtendRight, Rect bounds)
        {
            this.lineTopMain.Visibility = Visibility.Visible;
            this.lineTopMain.X1 = p1.X;
            this.lineTopMain.Y1 = p1.Y;
            this.lineTopMain.X2 = p2.X;
            this.lineTopMain.Y2 = p2.Y;
            this.MoveLeftLine(this.lineTopLeft, ExtendLeft, p1, p2, bounds);
            this.MoveRightLine(this.lineTopRight, ExtendRight, p1, p2, bounds);
        }

        public void SetTopTopPosition(Point p1, Point p2, bool ExtendLeft, bool ExtendRight, Rect bounds)
        {
            this.lineTopTopMain.Visibility = Visibility.Visible;
            this.lineTopTopMain.X1 = p1.X;
            this.lineTopTopMain.Y1 = p1.Y;
            this.lineTopTopMain.X2 = p2.X;
            this.lineTopTopMain.Y2 = p2.Y;
            this.MoveLeftLine(this.lineTopTopLeft, ExtendLeft, p1, p2, bounds);
            this.MoveRightLine(this.lineTopTopRight, ExtendRight, p1, p2, bounds);
        }

        #endregion Public Methods

        #region Private Methods

        private DoubleCollection CloneDoubleCollection(DoubleCollection pattern)
        {
            var doubleCollection = new DoubleCollection();
            if (pattern == null || pattern.Count == 0) return doubleCollection;
            foreach (var current in pattern)
            {
                doubleCollection.Add(current);
            }
            return doubleCollection;
        }

        private void MoveLeftLine(Line aTarget, bool visible, Point p1, Point p2, Rect bounds)
        {
            bool flag = !visible;
            if (flag)
            {
                aTarget.Visibility = Visibility.Collapsed;
            }
            else
            {
                Point @base = p2;
                Point point = p1;
                flag = (@base.X > point.X);
                if (flag)
                {
                    @base = p1;
                    point = p2;
                }

                //X相等，Y小的设为left base
                if (@base.X.Equals(point.X) && @base.Y > point.Y)
                {
                    @base = p2;
                    point = p1;
                }

                flag = (@base.X < bounds.Left);
                if (flag)
                {
                    aTarget.Visibility = Visibility.Collapsed;
                }
                else
                {
                    double num = GeometryHelper.LineSlope(ref @base, ref point);
                    flag = num.Equals(1.7976931348623157E+308);
                    if (flag)
                    {
                        aTarget.X1 = @base.X;
                        aTarget.X2 = @base.X;
                        aTarget.Y1 = bounds.Top;
                        aTarget.Y2 = p1.Y;
                        flag = (p2.Y < p1.Y);
                        if (flag)
                        {
                            aTarget.Y2 = p2.Y;
                        }
                    }
                    else
                    {
                        flag = num.Equals(0.0);
                        if (flag)
                        {
                            aTarget.X1 = bounds.Left;
                            aTarget.X2 = @base.X;
                            aTarget.Y1 = @base.Y;
                            aTarget.Y2 = @base.Y;
                        }
                        else
                        {
                            aTarget.X2 = @base.X;
                            aTarget.Y2 = @base.Y;

                            //计算X1, Y1
                            aTarget.Y1 = @base.Y > point.Y ? bounds.Height : 0;
                            aTarget.X1 = GeometryHelper.XFromLine(@base, num, aTarget.Y1);
                            if (aTarget.X1 < 0)
                            {
                                aTarget.X1 = 0;
                                aTarget.Y1 = GeometryHelper.YFromLine(@base, num, aTarget.X1);
                            }
                            if (aTarget.X1 > bounds.Width)
                            {
                                aTarget.X1 = bounds.Width;
                                aTarget.Y1 = GeometryHelper.YFromLine(@base, num, aTarget.X1);
                            }
                            //aTarget.X1 = bounds.Height;
                            //aTarget.Y1 = GeometryHelper.YFromLine(@base, num, bounds.Height);
                        }
                    }

                    aTarget.Visibility = Visibility.Visible;
                }
            }
        }

        private void MoveRightLine(Line aTarget, bool visible, Point p1, Point p2, Rect bounds)
        {
            bool flag = !visible;
            if (flag)
            {
                aTarget.Visibility = Visibility.Collapsed;
            }
            else
            {
                Point @base = p1;
                Point point = p2;
                flag = (@base.X < point.X);
                if (flag)
                {
                    @base = p2;
                    point = p1;
                }

                //X相等，Y大的设为right base
                if (@base.X.Equals(point.X) && @base.Y < point.Y)
                {
                    @base = p2;
                    point = p1;
                }

                flag = (@base.X > bounds.Right);
                if (flag)
                {
                    aTarget.Visibility = Visibility.Collapsed;
                }
                else
                {
                    double num = GeometryHelper.LineSlope(ref point, ref @base);
                    flag = num.Equals(1.7976931348623157E+308);
                    if (flag)
                    {
                        aTarget.X1 = (@base.X);
                        aTarget.X2 = (@base.X);
                        aTarget.Y1 = (bounds.Bottom);
                        aTarget.Y2 = (p1.Y);
                        flag = (p2.Y > p1.Y);
                        if (flag)
                        {
                            this.lineLeft.Y2 = (p2.Y);
                        }
                    }
                    else
                    {
                        flag = num.Equals(0.0);
                        if (flag)
                        {
                            aTarget.X1 = (bounds.Right);
                            aTarget.X2 = (@base.X);
                            aTarget.Y1 = (@base.Y);
                            aTarget.Y2 = (@base.Y);
                        }
                        else
                        {
                            aTarget.X2 = (@base.X);
                            aTarget.Y2 = (@base.Y);

                            //计算X1, Y1
                            aTarget.Y1 = @base.Y > point.Y ? bounds.Height : 0;
                            aTarget.X1 = GeometryHelper.XFromLine(@base, num, aTarget.Y1);
                            if (aTarget.X1 < 0)
                            {
                                aTarget.X1 = 0;
                                aTarget.Y1 = GeometryHelper.YFromLine(@base, num, aTarget.X1);
                            }
                            if (aTarget.X1 > bounds.Width)
                            {
                                aTarget.X1 = bounds.Width;
                                aTarget.Y1 = GeometryHelper.YFromLine(@base, num, aTarget.X1);
                            }
                            //aTarget.X1 = (bounds.Right);
                            //aTarget.Y1 = GeometryHelper.YFromLine(@base, num, bounds.Right);
                        }
                    }
                    aTarget.Visibility = Visibility.Visible;
                }
            }
        }

        #endregion Private Methods

        #endregion Methods
    }
}