LunarPresentation/Expressions/Triangle.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 Triangle : CanvasExpression
    {
        public Triangle(SubPanel rootPanel, SubPanel parentPanel, Editor editor)
            : base(rootPanel, parentPanel, editor)
        {
            //绘制三个主子面板的外接圆。
            topEllipse = new Ellipse();
            topEllipse.StrokeThickness = 2;
            topEllipse.Stroke = ExForeground;
            topEllipse.Fill = System.Windows.Media.Brushes.Transparent;
            topEllipse.Cursor = Cursors.Hand;
            topEllipse.MouseRightButtonDown += Ellipse_MouseRightButtonDown;
            topEllipse.MouseLeftButtonDown += Ellipse_MouseLeftButtonDown;
            topEllipse.MouseLeftButtonUp += Ellipse_MouseLeftButtonUp;

            leftEllipse = new Ellipse();
            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.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(topEllipse);
            basePanel.Children.Add(leftEllipse);
            basePanel.Children.Add(rightEllipse);

            Canvas.SetZIndex(topEllipse, 1);
            Canvas.SetZIndex(leftEllipse, 2);
            Canvas.SetZIndex(rightEllipse, 3);

            //三个主面板。
            topPanel = new SubPanel(rootPanel, parentPanel, editor, this);
            leftPanel = new SubPanel(rootPanel, parentPanel, editor, this);
            rightPanel = new SubPanel(rootPanel, parentPanel, editor, this);

            topPanel.SizeChanged += eachPanel_SizeChanged;
            leftPanel.SizeChanged += eachPanel_SizeChanged;
            rightPanel.SizeChanged += eachPanel_SizeChanged;