Metis_xctg/Annotation/BinaryAction/DrawBinaryChoiseOval.cs

using PaintDotNet.Annotation.Enum;
using PaintDotNet.Annotation.Label;
using System.Drawing;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.Other
{
    /// <summary>
    /// 二值提取-交互操作-选择-椭圆
    /// </summary>
    public class DrawBinaryChoiseOval : DrawObject
    {
        public DrawBinaryChoiseOval(ISurfaceBox surfaceBox, int x, int y, int width, int height) : base()
        {
            this.objectType = DrawClass.Interaction;
            this.drawToolType = DrawToolType.BinaryChoiseOval;

            this.rectangle.X = x;
            this.rectangle.Y = y;
            this.rectangle.Width = width;
            this.rectangle.Height = height;
            Initialize();
        }

        public override DrawObject Clone()
        {
            return null;
        }

        public override void Draw(Graphics g)
        {
            Pen pen = new Pen(Color.Red, 3);
            pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
            SolidBrush fillBrush = new SolidBrush(Color.Transparent);
            g.FillRectangle(fillBrush, DrawRectangle.GetNormalizedRectangle(Rectangle));
            g.DrawEllipse(pen, DrawRectangle.GetNormalizedRectangle(Rectangle));
            fillBrush.Dispose();
            pen.Dispose();
        }

        public override RectangleF GetBoundingBox()
        {
            return rectangle;
        }

        /// <summary>
        /// Move handle to new pointscroll (resizing)
        /// </summary>
        /// <param name="pointscroll"></param>
        /// <param name="handleNumber"></param>
        public override void MoveHandleTo(Point point, int handleNumber)
        {
            float left = Rectangle.Left;
            float top = Rectangle.Top;
            float right = Rectangle.Right;
            float bottom = Rectangle.Bottom;

            switch (handleNumber)
            {
                case 1:
                    left = point.X;
                    top = point.Y;
                    break;
                case 2:
                    top = point.Y;
                    break;
                case 3:
                    right = point.X;
                    top = point.Y;
                    break;
                case 4:
                    right = point.X;
                    break;
                case 5:
                    right = point.X;
                    bottom = point.Y;
                    break;
                case 6:
                    bottom = point.Y;
                    break;
                case 7:
                    left = point.X;
                    bottom = point.Y;
                    break;
                case 8:
                    left = point.X;
                    break;
            }

            SetRectangle(left, top, right - left, bottom - top);
        }

        protected void SetRectangle(float x, float y, float width, float height)
        {
            this.rectangle.X = x;
            this.rectangle.Y = y;
            this.rectangle.Width = width;
            this.rectangle.Height = height;
        }
    }
}