Kare Şekli Oluşturmak

Bu örnekte mouse un sol tuşuna tıklayarak form da istenildiği kadar kare şekli oluşturup, oluşturduğumuz kare sayısını label de göstereceğiz. Aşağıdaki şekli inceleyin.

Şekil 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        List< Rectangle > squares = new List< Rectangle >();
        public Form1()
        {
            InitializeComponent();
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(299, 272);
            this.Controls.Add(this.label1);
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.Name = "kare";
            this.Text = "kare";
            this.Paint += new System.Windows.Forms.PaintEventHandler(this.kare_Paint);
            this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.kare_MouseDown);
            this.ResumeLayout(false);
        }
        private void kare_Paint(object sender, PaintEventArgs e)
        {
            Pen pen = new Pen(Color.Red, 10);
            foreach (Rectangle kare in squares)
            {
                e.Graphics.DrawRectangle(pen, kare);
            }
            pen.Dispose();
            label1.Text = " " + squares.Count.ToString() + " kare";
        }

        private void kare_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Rectangle square = new Rectangle(e.X, e.Y, 20, 20);
                squares.Add(square);
                square.Inflate(1, 1);
                Invalidate(square);
            }
        }
      
    }
}

//Bir sonraki makalede buluşmak üzere. Bahadır ŞAHİN