LunarPresentation/Widegets/BracketPanel.cs

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

namespace SHomeWorkshop.LunarPresentation.Widegets
{
    public class BracketPanel : Canvas
    {
        public BracketPanel()
        {
            this.Width = 24;
            this.Background = Brushes.Transparent;
            this.SizeChanged += new SizeChangedEventHandler(BracketPanel_SizeChanged);
        }

        private Path myPath;

        public enum BracketLocation { Top, Bottom, Left, Right }

        /// <summary>
        /// 括弧位置，默认为左括弧（开口向右）。
        /// </summary>
        private BracketLocation location = BracketLocation.Left;

        public BracketLocation Location
        {
            get { return location; }
            set
            {
                location = value;
                switch (location)
                {
                    case BracketLocation.Left:
                    case BracketLocation.Right:
                        {
                            Width = 24; Height = double.NaN; break;
                        }
                    case BracketLocation.Top:
                    case BracketLocation.Bottom:
                        {
                            Height = 24; Width = double.NaN; break;
                        }
                }
            }
        }

        private Brush foreground=Brushes.White;

        public Brush Foreground
        {
            get { return foreground; }
            set
            {
                foreground = value;
                RefreshBracketPath();
            }
        }

        public void RefreshBracketPath()