Arrows/ArrowBase.cs

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namespace YiYan127.WPF.Arrows
{
    using System.Windows;
    using System.Windows.Media;
    using System.Windows.Shapes;

    /// <summary>
    /// 箭头基类
    /// </summary>
    public abstract class ArrowBase : Shape
    {
        #region Fields

        #region DependencyProperty

        /// <summary>
        /// 箭头两边夹角的依赖属性
        /// </summary>
        public static readonly DependencyProperty ArrowAngleProperty = DependencyProperty.Register(
            "ArrowAngle",
            typeof(double),
            typeof(ArrowBase),
            new FrameworkPropertyMetadata(45.0, FrameworkPropertyMetadataOptions.AffectsMeasure));

        /// <summary>
        /// 箭头长度的依赖属性
        /// </summary>
        public static readonly DependencyProperty ArrowLengthProperty = DependencyProperty.Register(
            "ArrowLength",
            typeof(double),
            typeof(ArrowBase),
            new FrameworkPropertyMetadata(12.0, FrameworkPropertyMetadataOptions.AffectsMeasure));

        /// <summary>
        /// 箭头所在端的依赖属性
        /// </summary>
        public static readonly DependencyProperty ArrowEndsProperty = DependencyProperty.Register(
            "ArrowEnds",
            typeof(ArrowEnds),
            typeof(ArrowBase),
            new FrameworkPropertyMetadata(ArrowEnds.End, FrameworkPropertyMetadataOptions.AffectsMeasure));

        /// <summary>
        /// 箭头是否闭合的依赖属性
        /// </summary>
        public static readonly DependencyProperty IsArrowClosedProperty = DependencyProperty.Register(
            "IsArrowClosed",
            typeof(bool),
            typeof(ArrowBase),
            new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.AffectsMeasure));

        /// <summary>
        /// 开始点
        /// </summary>
        public static readonly DependencyProperty StartPointProperty = DependencyProperty.Register(
            "StartPoint",
            typeof(Point),
            typeof(ArrowBase),
            new FrameworkPropertyMetadata(default(Point), FrameworkPropertyMetadataOptions.AffectsMeasure));