LunarMind/Adorners/TextHidedAdorner.cs

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using System.Windows;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using SHomeWorkshop.LunarConcept.Enums;
using System.Windows.Controls;
using SHomeWorkshop.LunarConcept.Controls;

namespace SHomeWorkshop.LunarConcept.Adorners
{
    /// <summary>
    /// 创建时间：2012年7月6日
    /// 创建者：  杨震宇
    /// 
    /// 主要用途：TextHidedAdorner用在部件文本被隐藏时显示一个圆角矩形。
    /// </summary>
    public class TextHidedAdorner : Adorner
    {
        /// <summary>
        /// [构造方法]
        /// </summary>
        /// <param name="adornedElement">应传入Widget.MainTextPanel。</param>
        public TextHidedAdorner(StackPanel adornedElement)
            : base(adornedElement)
        {
            //终于解决了选定装饰器中线条宽度为2而不是1像素的问题！！！
            //this.SnapsToDevicePixels = true;
            //this.SetValue(TextOptions.TextFormattingModeProperty, TextFormattingMode.Display);

            this.textPanel = adornedElement;

            this.ToolTip = tooltip;
            this.Opacity = 0.5;

            this.Cursor = Cursors.Arrow;
            this.MouseEnter += new MouseEventHandler(MaskAdorner_MouseEnter);
            this.MouseLeave += new MouseEventHandler(MaskAdorner_MouseLeave);
        }

        private static readonly string tooltip = "部件文本被隐藏";

        void MaskAdorner_MouseLeave(object sender, MouseEventArgs e)
        {
            this.InvalidateVisual();
        }

        void MaskAdorner_MouseEnter(object sender, MouseEventArgs e)
        {
            this.InvalidateVisual();
        }

        private StackPanel textPanel;

        public StackPanel TextPanel
        {
            get { return textPanel; }
            set { textPanel = value; }
        }

        protected override void OnRender(DrawingContext drawingContext)