using PaintDotNet.Annotation.Enum;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.Measure
{
    /// <summary>
    /// 测量抽象类
    /// </summary>
    public abstract class MeasureDrawObject : DrawObject
    {
        /// <summary>
        /// 数据信息
        /// </summary>
        public Dictionary<System.Enum, object> data = new Dictionary<System.Enum, object>();
        /// <summary>
        /// 绘制信息
        /// </summary>
        public Dictionary<System.Enum, string[]> drawingProperties = new Dictionary<System.Enum, string[]>();
        /// <summary>
        /// 鼠标在端点上的形状
        /// </summary>
        protected static Cursor handleCursor = new Cursor(PdnResources.GetResourceStream("Cursors.AnnotationPolyHandle.cur"));
        /// <summary>
        /// 单位枚举
        /// </summary>
        public MeasurementUnit measurementUnit;
        /// <summary>
        /// 单位缩写
        /// </summary>
        protected string unit = "μm";
        /// <summary>
        /// 单位名称
        /// </summary>
        protected string unitString = "微米";
        /// <summary>
        /// 单位像素长度
        /// </summary>
        public double unitLength
        {
            get
            {
                double value = 1;
                ISurfaceBox.getMeasureInfo().TryGetValue(measurementUnit, out value); 
                return value;
            }
        }
        /// <summary>
        /// 小数位数
        /// </summary>
        public static int decimalPlaces = 2;

        protected string unitAngle = "°";

        protected string unitMil = "mil";

        protected int precision = 10;

        //protected double pxPerUnit = 1;

        public double kS;

        public double kE;
        /// <summary>
        /// 绘制信息是否可移动
        /// </summary>
        public Dictionary<System.Enum, bool> pointChangeObject = new Dictionary<System.Enum, bool>();
        /// <summary>
        /// 限制绘制(属性改变)
        /// </summary>
        public bool mouseUpAttribute = false;
        /// <summary>
        /// 多点测量的每段长度
        /// </summary>
        public List<string> lengthParagraphs = new List<string>();
        public MeasurementUnit MeasurementUnit
        {
            set
            {
                this.measurementUnit = value;
                if (this.ISurfaceBox != null)
                {
                    this.ISurfaceBox.GetUnitSymbolsDictionary().TryGetValue((int)measurementUnit, out unit);
                    this.ISurfaceBox.GetUnitsDictionary().TryGetValue((int)measurementUnit, out unitString);                   
                }
            }
        }

        protected MeasureDrawObject()
        {

        }

        protected MeasureDrawObject(ISurfaceBox surfaceBox)
        {
            this.objectType = DrawClass.Measure;
            base.ISurfaceBox = surfaceBox;

            string[] pxPerUnitArr = surfaceBox.GetPxPerUnit();
            unit = pxPerUnitArr[2];
            //pxPerUnit = double.Parse(pxPerUnitArr[3]);

            base.Initialize();
        }

        public virtual Dictionary<System.Enum, object> GetData() { return null; }
        /// <summary>
        /// 获取旋转后的矩形位置
        /// </summary>
        /// <param name="rectangleF"></param>
        /// <param name="point"></param>
        /// <param name="angle"></param>
        /// <returns></returns>
        protected bool GetRectanglePosition(RectangleF rectangleF, Point point, PointF rotationPoint, double angle)
        {
            bool isVisible = false;
            Matrix matrix = new Matrix();
            matrix.RotateAt((float)angle, rotationPoint);
            GraphicsPath graphicsPath = new GraphicsPath();
            graphicsPath.AddRectangle(rectangleF);
            graphicsPath.Transform(matrix);
            isVisible = graphicsPath.IsVisible(point);
            graphicsPath.Dispose();
            graphicsPath = null;
            matrix.Dispose();
            matrix = null;
            return isVisible;
        }
        /// <summary>
        /// 设置旋转后偏移量
        /// </summary>
        /// <param name="point"></param>
        /// <param name="angle"></param>
        /// <returns></returns>
        protected Point SetOffsetAfterRotation(Point point, PointF rotationPoint, double angle)
        {
            Matrix matrix = new Matrix();
            matrix.RotateAt((float)-angle, rotationPoint);
            Point[] ff = new Point[1];
            ff[0] = point;
            matrix.TransformPoints(ff);
            matrix.Dispose();
            matrix = null;
            return ff[0];
        }
    }
}