LunarPresentation/Expressions/LogicContradiction.cs

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using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Xml;

namespace SHomeWorkshop.LunarPresentation.Expressions
{
    public class LogicContradiction : CanvasExpression
    {
        public LogicContradiction(SubPanel rootPanel, SubPanel parentPanel, Editor editor)
            : base(rootPanel, parentPanel, editor)
        {
            //绘制外接圆。
            outEllipse = new Ellipse();
            outEllipse.StrokeThickness = 2;
            outEllipse.Stroke = ExForeground;
            outEllipse.Fill = System.Windows.Media.Brushes.Transparent;
            outEllipse.Cursor = Cursors.Hand;
            outEllipse.MouseRightButtonDown += Ellipse_MouseRightButtonDown;
            outEllipse.MouseLeftButtonDown += Ellipse_MouseLeftButtonDown;
            outEllipse.MouseLeftButtonUp += Ellipse_MouseLeftButtonUp;

            splitLine = new Line();
            splitLine.StrokeThickness = 2;
            splitLine.Stroke = ExForeground;
            splitLine.Fill = System.Windows.Media.Brushes.Transparent;
            splitLine.Cursor = Cursors.Hand;
            splitLine.MouseRightButtonDown += Ellipse_MouseRightButtonDown;

            leftEllipse = new Ellipse();
            leftEllipse.Visibility = Visibility.Hidden;
            leftEllipse.StrokeThickness = 2;
            leftEllipse.Stroke = ExForeground;
            leftEllipse.Fill = System.Windows.Media.Brushes.Transparent;
            leftEllipse.Cursor = Cursors.Hand;
            leftEllipse.MouseRightButtonDown += Ellipse_MouseRightButtonDown;
            leftEllipse.MouseLeftButtonDown += Ellipse_MouseLeftButtonDown;
            leftEllipse.MouseLeftButtonUp += Ellipse_MouseLeftButtonUp;

            rightEllipse = new Ellipse();
            rightEllipse.Visibility = Visibility.Hidden;
            rightEllipse.StrokeThickness = 2;
            rightEllipse.Stroke = ExForeground;
            rightEllipse.Fill = System.Windows.Media.Brushes.Transparent;
            rightEllipse.Cursor = Cursors.Hand;
            rightEllipse.MouseRightButtonDown += Ellipse_MouseRightButtonDown;
            rightEllipse.MouseLeftButtonDown += Ellipse_MouseLeftButtonDown;
            rightEllipse.MouseLeftButtonUp += Ellipse_MouseLeftButtonUp;

            basePanel.Children.Add(outEllipse);
            basePanel.Children.Add(splitLine);
            basePanel.Children.Add(leftEllipse);
            basePanel.Children.Add(rightEllipse);

            Canvas.SetZIndex(splitLine, 0);
            Canvas.SetZIndex(outEllipse, 1);
            Canvas.SetZIndex(leftEllipse, 2);