Canvases/GuidelineCanvas.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace DrawingPad.Canvases
{
    public enum GuidelineSize
    {
        /// <summary>
        /// 小
        /// </summary>
        Small,

        /// <summary>
        /// 中等
        /// </summary>
        Middle,

        /// <summary>
        /// 大
        /// </summary>
        Large,

        /// <summary>
        /// 更大
        /// </summary>
        ExtraLarge
    }

    /// <summary>
    /// 导航线图层
    /// 画一个导航线背景
    /// </summary>
    public class GuidelineCanvas : UserControl
    {
        #region 常量

        private static readonly Pen DefaultGridLinePen = new Pen(new SolidColorBrush(Color.FromRgb(238, 238, 238)), 1);
        private static readonly Pen DefaultGridLinePen2 = new Pen(new SolidColorBrush(Color.FromRgb(208, 208, 208)), 1);

        private static readonly Brush DefaultBackground = new SolidColorBrush(Color.FromRgb(242, 242, 242));

        private const int DefaultMargin = 0;

        #endregion

        #region 实例变量

        private Dictionary<GuidelineSize, int> GuidelineSizeMap = new Dictionary<GuidelineSize, int>()
        {
            { GuidelineSize.Small, 10 }, { GuidelineSize.Middle, 15 },
            { GuidelineSize.Large, 20 }, { GuidelineSize.ExtraLarge, 25 }
        };

        #endregion