paint_نقاشی با شی گرایی

[NIIT]

سلام
مشکلات موجود برای این برنامه:

قبل از این یه پروژه انجام دادم و تکرارها رو دیدم

برای همین رفتم کلاسها رو به ترتیب زیر نوشتم


ترتیب:
clsLine
clsRectangle
clsEllipse




مشکل:


کد تکراری در دو کلاس:

Abstraction

ClsLine:

using System;

using System.Drawing;





namespace winPaint

{

    

    class clsLine

    {

        //must be property, وقت نداشتم فیلد کردمشون

        //p1.x<=p2.x , p1.y<=p2.y

        public Point p1, p2;

        public Pen pen;

        public Graphics boom;

        //------





        public clsLine(Point p1, Point p2, Pen pen, Graphics boom)

        {

            this.p1 = p1;

            this.p2 = p2;

            this.pen = pen;

            this.boom = boom;





        }

        public void Draw()

        {

            //چون در این فضا نمی بیند، به سطح کلاس می رود و آنها را پیدا می کند

            boom.DrawLine(pen, p1, p2);

        }

        public void Save()

        {

            clsDB db1 = new clsDB("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=dbpaint.accdb");

            db1.Perform(string.Format("INSERT INTO tblLine(x1,y1,x2,y2,color) VALUES({0},{1},{2},{3},'{4}')",p1.X,p1.Y,p2.X,p2.Y,pen.Color));

        }

    }

}

ClsEllipse:

using System;

using System.Drawing;





namespace winPaint

{

    class clsEllipse

    {

        //must be property, وقت نداشتم فیلد کردمشون

        //p1.x<=p2.x , p1.y<=p2.y

        public Point p1, p2;

        public Pen pen;

        public Graphics boom;

        //------

        public clsEllipse(Point p1, Point p2, Pen pen, Graphics boom)

        {

            this.p1 = p1;

            this.p2 = p2;

            this.pen = pen;

            this.boom = boom;





        }

        public void Draw()

        {

            //چون در این فضا نمی بیند، به سطح کلاس می رود و آنها را پیدا می کند

            

            boom.DrawEllipse(pen, p1.X,p1.Y, p2.X- p1.X, p2.Y-p1.Y);

        }

        public void Save()

        {

            clsDB db1 = new clsDB("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=dbpaint.accdb");

            db1.Perform(string.Format("INSERT INTO tblEllipse(x1,y1,x2,y2,color) VALUES({0},{1},{2},{3},'{4}')", p1.X, p1.Y, p2.X, p2.Y, pen.Color));

        }









    }

}

ClsRectangle:

using System;

using System.Drawing;





namespace winPaint

{

    class clsRectangle

    {

        //must be property, وقت نداشتم فیلد کردمشون

        //p1.x<=p2.x , p1.y<=p2.y

        public Point p1, p2;

        public Pen pen;

        public Graphics boom;

        //------

        public clsRectangle(Point p1, Point p2, Pen pen, Graphics boom)

        {

            this.p1 = p1;

            this.p2 = p2;

            this.pen = pen;

            this.boom = boom;





        }

        public void Draw()

        {

            //چون در این فضا نمی بیند، به سطح کلاس می رود و آنها را پیدا می کند

            

            boom.DrawRectangle(pen, p1.X,p1.Y, p2.X- p1.X, p2.Y-p1.Y);

        }

        public void Save()

        {

            clsDB db1 = new clsDB("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=dbpaint.accdb");

            db1.Perform(string.Format("INSERT INTO tblRectangle(x1,y1,x2,y2,color) VALUES({0},{1},{2},{3},'{4}')", p1.X, p1.Y, p2.X, p2.Y, pen.Color));

        }









    }

}

اینم یه کلاس برای یک شکل الکیه:

using System;

using System.Drawing;

using System.Data.OleDb;

using System.Collections.Generic;





namespace WindowsApplication1

{

    #region Enum ShapeType

    public enum ShapeType

    {

        Line, Rectangle, Cube

    }

    #endregion





    #region clsShape









    public class clsShape

    {

        public static int ShapeCount;





        protected static OleDbConnection conn;

        protected static OleDbCommand cmd;





        static clsShape()

        {

            ShapeCount = 0;

            conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=dbpaint.accdb");

            cmd = new OleDbCommand("", conn);

            conn.Open();

        }





        public clsShape(Point p1, Point p2, Pen thePen, Graphics collaj)

        {

            this.Collaj = collaj;

            this.thePen = thePen;

            this.P1 = p1;

            this.P2 = p2;





            ShapeCount++;

        }





        ~clsShape() 

        {

            ShapeCount--;

        }





        private Pen p;





        public Pen thePen

        {

            get { return p; }

            set { p = value; }

        }

    





        private Graphics g;





        public Graphics Collaj

        {

            get { return g; }

            set { g = value; }

        }





        private Point p1;





        public Point P1

        {

            get { return p1; }

            set { p1 = value; }

        }





        private Point p2;





        public Point P2

        {

            get { return p2; }

            set { p2 = value; }

        }





        private ShapeType shType;





        protected ShapeType ShType

        {

            get { return shType; }

            set { shType = value; }

        }

    





        public virtual void Draw(){}





        public virtual bool SaveToDataBase(int paintID)

        {

            throw new Exception("shape");

            cmd.CommandText = string.Format("INSERT INTO tblpaint(x1,y1,x2,y2,color,shType,paintID) VALUES({0},{1},{2},{3},{4},{5},{6})",P1.X,p1.Y,P2.X,P2.Y,thePen.Color.ToArgb(),ShType.ToString(),paintID);

            int i=cmd.ExecuteNonQuery();

            return (i > 0);

        }





        public virtual bool LoadFromDataBase(int shapeID)

        {

            return true;

        }





    }

    #endregion





    #region clsLine





    //ye mesal as class va verasat biarid ba toozih

    public sealed class clsLine : clsShape 

    {

        public static int lineCount = 0;





        public clsLine(Point p1,Point p2, Pen thePen, Graphics collaj):base(p1,p2,thePen, collaj)

        {

            ShType = ShapeType.Line;

            lineCount++;

        }





        ~clsLine() 

        {

            lineCount--;

        }





        public override void Draw() 

        {

            Collaj.DrawLine(thePen, P1, P2);

        }





        

    }

    #endregion





    #region clsRectangle





    public class clsRectangle : clsShape

    {

        public static int rectCount = 0;





        public clsRectangle(Point p1, Point p2, Pen thePen, Graphics collaj)

            : base(p1, p2, thePen, collaj)

        {

            ShType = ShapeType.Rectangle;

            rectCount++;

        }





        ~clsRectangle() {

            rectCount--;

        }





        public override void Draw()

        {

            Point p=new Point();

            p.X = Math.Min(P1.X, P2.X);

            p.Y = Math.Min(P1.Y, P2.Y);

            Collaj.DrawRectangle(thePen, p.X, p.Y, Math.Abs(P2.X - P1.X), Math.Abs(P2.Y - P1.Y));

        }





    }

    #endregion





    #region clsCube

    public class clsCube : clsRectangle

    {

        public clsCube(Point p1, Point p2, Pen thePen, Graphics collaj):base(p1, p2, thePen, collaj)

        {

            ShType = ShapeType.Cube;

        }

        public override bool LoadFromDataBase(int shapeID)

        {

            return base.LoadFromDataBase(shapeID);

            

        }

        public override bool SaveToDataBase(int paintID)

        {

            //throw new Exception("cube");

            return true;

        }

    }

    #endregion





    #region clsPaint

    public class clsPaint

    {





        private int paintID;





        public int PaintID

        {

            get { return paintID; }

            set { paintID = value; }

        }





        private string paintName;





        public string PaintName

        {

            get { return paintName; }

            set { paintName = value; }

        }





        private Graphics g;





        public Graphics Collaj

        {

            get { return g; }

            set { g = value; }

        }

    

        List<clsShape> shapes = new List<clsShape>();

        

        public void AddShape(clsShape sh) 

        {





        }

        public void RemoveShape(clsShape sh)

        {





        }

        public bool SaveShapesToDataBase()

        {

            foreach (clsShape sh in shapes)

            {

                sh.SaveToDataBase(this.PaintID);

            }

            return true;

        }

        public void LoadShapesFromDataBase() 

        {

            //int i=0;

            //shapes = new List<clsShape>();

            //cmd.CommandText = "SELECT * FROM tblpaint";

            //OleDbDataReader rdr;

            //rdr = cmd.ExecuteReader();

            //while (rdr.Read())

            //{

            //    p1.X = Convert.ToInt32(rdr["x1"]);

            //    p1.Y = Convert.ToInt32(rdr["y1"]);

            //    p2.X = Convert.ToInt32(rdr["x2"]);

            //    p2.Y = Convert.ToInt32(rdr["y2"]);

            //    thePen = new Pen(Color.FromArgb(Convert.ToInt32(rdr["color"])));

            //    ShType = (ShapeType)Enum.Parse(typeof(ShapeType), Convert.ToString(rdr["shType"]));

            //    //switch(shty

            //    //shapes[i]=;

            //}

            //rdr.Close();

            //return b;









            //foreach (clsShape sh in shapes)

            //{

            //    sh.LoadFromDataBase(this.PaintID);

            //}

           

            //return true; 

        }

    }

    #endregion

}

اینم فرمای مربوطه:

فرم اول:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;





namespace winPaint

{

    public partial class Form0 : Form

    {

        public Form0()

        {

            InitializeComponent();

        }

        Graphics g;

        private void Form0_Paint(object sender, PaintEventArgs e)

        {

            Pen p = new Pen(Color.Green);

            Point p1 = new Point(20, 40);

            Point p2 = new Point(110, 90);

            g.DrawLine(p, p1, p2);

            g.DrawRectangle(p, p1.X, p1.Y, p2.X - p1.X, p2.Y - p1.Y);

            g.DrawEllipse(p, p1.X, p1.Y, p2.X - p1.X, p2.Y - p1.Y);

        }





        private void Form0_Load(object sender, EventArgs e)

        {

            g=panel1.CreateGraphics();

        }

    }

}

فرم دوم:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;





namespace winPaint

{

    public partial class Form1 : Form

    {

        Graphics gpanel1;

        public Form1()

        {

            InitializeComponent();

        }





        private void Form1_Load(object sender, EventArgs e)

        {

            gpanel1 = panel1.CreateGraphics();

           

        }





        private void DrawPicture()

        {

            Pen p = new Pen(Color.Red);

            Point p1 = new Point(20, 30);

            Point p2 = new Point(50, 60);





            clsLine l1 = new clsLine(p1,p2,p,gpanel1);

            l1.Draw();

            //l1.Save();





            clsRectangle r1 = new clsRectangle(p1, p2, p, gpanel1);

            r1.Draw();

            r1.Save();





            clsEllipse e1 = new clsEllipse(p1, p2, p, gpanel1);

            e1.Draw();

            e1.Save();

        }





        private void Form1_Paint(object sender, PaintEventArgs e)

        {

            DrawPicture();





        }

    }

}

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