using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Shapes;
using netDxf;
using netDxf.Tables;

namespace MetroGauges.Controls
{
    public class BlockLine : BaseShap
    {
        

        public BlockLine(FrameworkElement shap) : base(shap)
        {
        }

        public override void CopyBlock()
        {
            Line line = shapeitem as Line;
            shapeitem.Tag = new Line() { X1 = line.X1, Y1 = line.Y1, X2 = line.X2, Y2 = line.Y2 }; //存储当前图形坐标

            ShapDataContext shapDataContext = line.DataContext as ShapDataContext;
            shapDataContext.OringLocation = new Line() { X1 = line.X1 / shapDataContext.ShapScaleRate, Y1 = line.Y1 / shapDataContext.ShapScaleRate, X2 = line.X2 / shapDataContext.ShapScaleRate, Y2 = line.Y2 / shapDataContext.ShapScaleRate } ;
            
        }

        public override FrameworkElement DirectionShap(Point dirPoint)
        {
            throw new NotImplementedException();
        }

        public override void DrawDxfBlocks(DxfDocument dxf, Layer layer)
        {
            Line line = shapeitem as Line;
            netDxf.Entities.Line dline = new netDxf.Entities.Line(new Vector2(line.X1 * m_ScaleRale, -line.Y1 * m_ScaleRale), new Vector2(line.X2 * m_ScaleRale, -line.Y2 * m_ScaleRale));
            dline.Layer = layer;
            dxf.AddEntity(dline);
        }

        public override List<Point> GetPoints()
        {
            List<Point> points = new List<Point>();

            Line line = shapeitem as Line;

            points.Add(new Point() { X = line.X1, Y = line.Y1 });
            points.Add(new Point() { X = line.X2, Y = line.Y2 });

            return points;
        }

        public override void MoveBlock( Point currentPoint, System.Windows.Point dragPoint)
        {
            double moveX = currentPoint.X - dragPoint.X;
            double moveY = currentPoint.Y - dragPoint.Y;

            Line line = shapeitem.Tag as Line;


            if ((shapeitem.DataContext as ShapDataContext).IsDirection)
            {
                (shapeitem as Line).X1 = line.X1 - moveX;
                (shapeitem as Line).X2 = line.X2 - moveX;
            }
            else
            {
                (shapeitem as Line).X1 = line.X1 + moveX;
                (shapeitem as Line).X2 = line.X2 + moveX;
            }
            


            (shapeitem as Line).Y1 = line.Y1 + moveY;
            (shapeitem as Line).Y2 = line.Y2 + moveY;
        }

        public override void MoveByX(double x)
        {
            Line line = shapeitem.Tag as Line;
            (shapeitem as Line).X1 = line.X1 + x/ m_ScaleRale;
            (shapeitem as Line).X2 = line.X2 + x/ m_ScaleRale;
        }

        public override void MoveByY(double y)
        {
            Line line = shapeitem.Tag as Line;

            (shapeitem as Line).Y1 = line.Y1 - y/ m_ScaleRale;
            (shapeitem as Line).Y2 = line.Y2 - y/ m_ScaleRale;
        }

        public override void ScaleBlock(double rate)
        {
            (shapeitem.DataContext as ShapDataContext).ShapScaleRate = rate;
            Line line = (shapeitem.DataContext as ShapDataContext).OringLocation as Line;  //shapeitem.Tag as Line;
            (shapeitem as Line).X1 = line.X1 * rate;
            (shapeitem as Line).X2 = line.X2 * rate;
            (shapeitem as Line).Y1 = line.Y1 * rate;
            (shapeitem as Line).Y2 = line.Y2 * rate;
        }
    }
}