BuildProcess/FlowChartModule/绘制模块/Connection_Line.cs

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;

namespace FlowChartModule.绘制模块
{
    public class Connection_Line
    {

        PathGeometry pathGeometry = new PathGeometry();
        PathFigure pathFigure = new PathFigure();
        BezierSegment bezierSegment = new BezierSegment();
        public BezierCurveModel curveModel = new BezierCurveModel();
        [JsonIgnore]
        public Path path = new Path();
        private Element startelement=null;

        private Element endelement=null;
        [JsonIgnore]
        public Element Startelement { get => startelement; set => startelement = value; }
        [JsonIgnore]
        public Element Endelement { get => endelement; set => endelement =  value ; }

        public Connection_Line(Canvas canvas)
        {
            
        }


        public void Drewbezier(Canvas canvas)
        {
            // 绘制贝塞尔曲线
           
            path.Stroke = Brushes.Blue;
            path.StrokeThickness = 2;
            pathFigure.StartPoint = curveModel.StartPoint;
            bezierSegment.Point1 = curveModel.ControlPoint1;
            bezierSegment.Point2 = curveModel.ControlPoint2;
            bezierSegment.Point3 = curveModel.EndPoint;
            pathFigure.Segments.Add(bezierSegment);
            pathGeometry.Figures.Add(pathFigure);
            path.Data = pathGeometry;
            path.Tag = canvas.Children.Count;
            canvas.Children.Add(path);
        }

        public void DrewbezierRef(Canvas canvas)
        {
            // 绘制贝塞尔曲线
            canvas.Children.Remove(path);
            pathGeometry = new PathGeometry();
            pathFigure = new PathFigure();
            bezierSegment = new BezierSegment();
            path.Stroke = Brushes.Blue;
            path.StrokeThickness = 2;
            pathFigure.StartPoint = curveModel.StartPoint;
            bezierSegment.Point1 = curveModel.ControlPoint1;
            bezierSegment.Point2 = curveModel.ControlPoint2;
            bezierSegment.Point3 = curveModel.EndPoint;
            pathFigure.Segments.Add(bezierSegment);
            pathGeometry.Figures.Add(pathFigure);
            path.Data = pathGeometry;
            path.Tag = canvas.Children.Count;
            canvas.Children.Add(path);
        }

        

    }
}