using PaintDotNet.Base.SettingModel;

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Globalization;
using System.Runtime.Serialization;
using System.Windows.Forms;
using PaintDotNet.Base.CommTool;
using System.IO;
using static PaintDotNet.Base.SettingModel.LabelStyleModel;
using PaintDotNet.Annotation.Enum;
using System.Collections;
using System.Collections.Generic;

namespace PaintDotNet.Annotation.Label
{
    /// <summary>
    /// 标注->标记->数字标记
    /// </summary>
    public class DrawNumberMark : DrawObject
    {
        private static Cursor handleCursor = new Cursor(PdnResources.GetResourceStream("Cursors.AnnotationPolyHandle.cur"));

        /// <summary>
        /// 标注样式信息model
        /// </summary>
        public NumberMark labelNumberMarkStyleModel;

        public int nowNum = 0;
        public bool canSetNum = false;

        public DrawNumberMark(ISurfaceBox surfaceBox) : base()
        {
            this.objectType = DrawClass.Label;
            this.drawToolType = DrawToolType.DrawNumberMark;

            Initialize();
        }

        public DrawNumberMark(ISurfaceBox surfaceBox, int x1, int y1) : base()
        {
            this.objectType = DrawClass.Label;
            this.drawToolType = DrawToolType.DrawNumberMark;
            startPoint = new PointF(x1, y1);

            labelNumberMarkStyleModel = surfaceBox.GetLabelStyleModel().numberMark;
            Initialize(); 
        }

        public DrawNumberMark(ISurfaceBox surfaceBox, List<PointF> points, ParentStyleModel parentStyleModel, Object content) : base()
        {
            this.objectType = DrawClass.Label;
            this.drawToolType = DrawToolType.DrawNumberMark;
            this.ISurfaceBox = surfaceBox;

            labelNumberMarkStyleModel = (LabelStyleModel.NumberMark)parentStyleModel;
            startPoint = points[0];
            nowNum = Convert.ToInt32(content);
        }

        /// <summary>
        /// Clone this instance
        /// </summary>
        public override DrawObject Clone()
        {
            DrawNumberMark numberMark = new DrawNumberMark(ISurfaceBox);
            numberMark.objectType = DrawClass.Label;
            numberMark.drawToolType = DrawToolType.DrawNumberMark;
            numberMark.ISurfaceBox = this.ISurfaceBox;
            numberMark.startPoint = this.startPoint;
            numberMark.labelNumberMarkStyleModel = this.labelNumberMarkStyleModel;
            //numberMark.nowNum = this.nowNum;
            numberMark.canSetNum = true;
            FillDrawObjectFields(numberMark);
            return numberMark;
        }

        public override DrawObject Clone(ISurfaceBox surfaceBox)
        {
            DrawNumberMark numberMark = new DrawNumberMark(surfaceBox);
            numberMark.objectType = DrawClass.Label;
            numberMark.drawToolType = DrawToolType.DrawNumberMark;
            numberMark.ISurfaceBox = surfaceBox;
            numberMark.startPoint = this.startPoint;
            numberMark.labelNumberMarkStyleModel = this.labelNumberMarkStyleModel;
            //numberMark.nowNum = this.nowNum;
            numberMark.canSetNum = true;
            FillDrawObjectFields(numberMark);
            return numberMark;
        }

        public override void Draw(Graphics g)
        {
            if (canSetNum)
            {
                nowNum = setNowNumber();
                canSetNum = false;
            }

            Font textfont = new Font(this.labelNumberMarkStyleModel.font, this.labelNumberMarkStyleModel.fontSize);
            Brush textbrush = new SolidBrush(Color.FromArgb(this.labelNumberMarkStyleModel.textColor));

            Color color = Color.FromArgb(this.labelNumberMarkStyleModel.backgroundBoxColor);
            Pen pen = new Pen(color, this.labelNumberMarkStyleModel.lineWidth);

            Color fillColor = Color.FromArgb(this.labelNumberMarkStyleModel.backgroundColor);
            SolidBrush fillBrush = new SolidBrush(fillColor);

            Size fontSize = g.MeasureString(nowNum.ToString(), textfont).ToSize();

            float backgroundSize = 0;//背景大小
            if (fontSize.Width > fontSize.Height)
                backgroundSize = fontSize.Width * (this.labelNumberMarkStyleModel.backgroundSize / 100f);
            else
                backgroundSize = fontSize.Height * (this.labelNumberMarkStyleModel.backgroundSize / 100f);

            g.SmoothingMode = SmoothingMode.AntiAlias;

            rectangle.X = startPoint.X;
            rectangle.Y = startPoint.Y;
            rectangle.Width = fontSize.Width + 2 * backgroundSize;
            rectangle.Height = fontSize.Height + 2 * backgroundSize;

            g.FillRectangle(fillBrush, rectangle);
            g.DrawRectangle(pen, rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
            g.DrawString(nowNum.ToString(), textfont, textbrush, startPoint.X + backgroundSize, startPoint.Y + backgroundSize);

            fillBrush.Dispose();
            pen.Dispose();

        }

        public int setNowNumber()
        {
            List<DrawObject> objList = this.ISurfaceBox.GraphicsList.GetDrawToolTypeList(DrawToolType.DrawNumberMark);
            objList.Reverse();
            int indexNum = objList.IndexOf(this) + 1;
            return indexNum;
        }

        public override int HandleCount
        {
            get
            {
                return 1;
            }
        }

        /// <summary>
        /// Get handle pointscroll by 1-based number
        /// </summary>
        /// <param name="handleNumber"></param>
        /// <returns></returns>
        public override PointF GetHandle(int handleNumber)
        {
            return startPoint;
        }

        /// <summary>
        /// Hit test.
        /// Return value: -1 - no hit
        ///                0 - hit anywhere
        ///                > 1 - handle number
        /// </summary>
        /// <param name="pointscroll"></param>
        /// <returns></returns>
        public override int HitTest(Point point)
        {
            if (Selected)
            {
                for (int i = 1; i <= HandleCount; i++)
                {
                    if (GetHandleRectangle(i).Contains(point))
                        return i;
                }
            }

            if (PointInObject(point))
                return 0;

            return -1;
        }

        protected override bool PointInObject(Point point)
        {
            return rectangle.Contains(point);
        }

        public override bool IntersectsWith(Rectangle rectangle)
        {
            return Rectangle.IntersectsWith(rectangle);
        }

        public override Cursor GetHandleCursor(int handleNumber)
        {
            return Cursors.Default;
        }

        public override void MoveHandleTo(Point point, int handleNumber)
        {
            startPoint = point;
        }

        public override void Move(int deltaX, int deltaY)
        {
            int x = ISurfaceBox.UnscaleScalar(deltaX);
            int y = ISurfaceBox.UnscaleScalar(deltaY);

            startPoint.X += x;
            startPoint.Y += y;

            rectangle.X += x;
            rectangle.Y += y;
        }

        public override RectangleF GetBoundingBox()
        {
            return rectangle;
        }

        public override List<PointF> GetPoints()
        {
            List<PointF> points = new List<PointF>();
            points.Add(startPoint);
            return points;
        }

        public override ParentStyleModel GetStyle()
        {
            return labelNumberMarkStyleModel;
        }

        public override string GetContent()
        {
            return nowNum.ToString();
        }
    }
}