C ＃ draw rectangle, ellipse and text for the picture

Code

        private void Button_Test_Click(object sender, EventArgs e)
        {
            string path = TextBox_Img1Path.Text;
            if (string.IsNullOrEmpty(path))
            {
                Console.WriteLine(" The path cannot be empty ");
                return;
            }
            if (!System.IO.File.Exists(path))
            {
                Console.WriteLine(" Picture does not exist ");
                return;
            }

            Bitmap bitmap = new Bitmap(path);
            Point point1 = new Point(100, 100);
            Point point2 = new Point(120, 120);

            //bitmap = DrawRoundInPicture(bitmap, point1, point2, Color.Red, 3, " Blistering ");
            //pictureBox1.Image = bitmap;

            Size size = new Size();
            size.Width = 200;
            size.Height = 200;
            Bitmap bitmap1 = DrawRectangleInPicture(bitmap, point1, size, Color.Red, 2, " Bubble ", 13);
            pictureBox1.Image = bitmap1;

            //Point point3 = new Point(200, 200);
            //Point point4 = new Point(210, 210);
            //bitmap = DrawRoundInPicture(bitmap, point3, point4, Color.AntiqueWhite, 3, " rupture ");
            //bitmap.Save(path, System.Drawing.Imaging.ImageFormat.Bmp);
        }

        /// <summary>
        ///  Draw an ellipse on the picture 
        /// </summary>
        /// <param name="bmp"> The image bitmap</param>
        /// <param name="p0"> Location </param>
        /// <param name="lineColor"> Color </param>
        /// <param name="lineWidth"> Circle thickness </param>
        /// <param name="text"> title </param>
        /// <param name="ds"> Line type </param>
        /// <returns></returns>
        public static Bitmap DrawRoundInPicture(Bitmap bmp, Point p0, Point p1, Color lineColor, int lineWidth, string text, DashStyle ds = DashStyle.Solid)
        {
            if (bmp == null) return null;

            Graphics g = Graphics.FromImage(bmp);

            Brush brush = new SolidBrush(lineColor);
            Pen pen = new Pen(brush, lineWidth);
            pen.DashStyle = ds;

            // Drawing ellipse 
            //g.DrawEllipse(pen, new Rectangle(p0.X, p0.Y, Math.Abs(p0.X - p1.X), Math.Abs(p0.Y - p1.Y)));
            // Draw a rectangular 
            g.DrawRectangle(pen, p0.X, p0.Y, 20, 20);

            Font myFont = new Font(" Song style ", 30, FontStyle.Bold);
            Brush bush = new SolidBrush(lineColor);// Fill color 
            g.DrawString(text, myFont, bush, p0.X - 30, p1.Y + 10);

            g.Dispose();

            return bmp;
        }

        /// <summary>
        ///  Draw a rectangle and mark text on the picture 
        /// </summary>
        /// <param name="bmp"> picture bitmap</param>
        /// <param name="pos"> Coordinate position of rectangle </param>
        /// <param name="size"> The width and height of the rectangle </param>
        /// <param name="lineColor"> The color of the line </param>
        /// <param name="lineWidth"> line </param>
        /// <param name="text"> Rectangular text </param>
        /// <param name="fontSize"> font size </param>
        /// <param name="ds"> Line type </param>
        /// <returns></returns>
        public static Bitmap DrawRectangleInPicture(Bitmap bmp, Point pos, Size size, Color lineColor, int lineWidth, string text, int fontSize, DashStyle ds = DashStyle.Solid)
        {
            if (bmp == null) return null;

            Graphics g = Graphics.FromImage(bmp);

            Brush brush = new SolidBrush(lineColor);
            Pen pen = new Pen(brush, lineWidth);
            pen.DashStyle = ds;

            // Draw the center point （ Used for testing ）
            //g.DrawEllipse(pen, new Rectangle(pos.X, pos.Y, 3, 3));

            // Draw a rectangular 
            int rectX = pos.X - (size.Width / 2);
            int rectY = pos.Y - (size.Height / 2);
            //g.DrawRectangle(pen, pos.X, pos.Y, size.Width, size.Height);
            g.DrawRectangle(pen, rectX, rectY, size.Width, size.Height);

            Font myFont = new Font(" Song style ", fontSize, FontStyle.Regular);
            Brush bush = new SolidBrush(lineColor);// Fill color 

            // Calculate the length of the font 
            SizeF sizeF = g.MeasureString(text, myFont);
            int fontPosX = (int)(pos.X - (sizeF.Width / 2));
            int fontPosY = (int)(pos.Y + (sizeF.Height / 2) + (size.Height / 2));
            Console.WriteLine();
            g.DrawString(text, myFont, bush, fontPosX, fontPosY);
            g.Dispose();

            return bmp;
        }

end