برنامج عرض الصور

كود برنامج عرض الصور 

برجاء ممكن الاخوة يشرحولي الكود

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;

namespace imageviewer
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog1;
private string [] folderFile = null;
private int selected = 0;
private int begin = 0;
private int end = 0;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.Button button4;
private System.ComponentModel.IContainer components;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.panel1 = new System.Windows.Forms.Panel();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.button4 = new System.Windows.Forms.Button();
this.panel1.SuspendLayout();
this.SuspendLayout();
//
// panel1
//
this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel1.AutoScroll = true;
this.panel1.BackColor = System.Drawing.Color.Black;
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.panel1.Controls.Add(this.pictureBox1);
this.panel1.Location = new System.Drawing.Point(0, 0);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(424, 248);
this.panel1.TabIndex = 0;
//
// pictureBox1
//
this.pictureBox1.Location = new System.Drawing.Point(8, 8);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
//
// button1
//
this.button1.Location = new System.Drawing.Point(8, 256);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(128, 23);
this.button1.TabIndex = 1;
this.button1.Text = "<< Previous";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(152, 256);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(128, 23);
this.button2.TabIndex = 2;
this.button2.Text = "Open Folder";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(288, 256);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(128, 23);
this.button3.TabIndex = 3;
this.button3.Text = "Next >>";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// folderBrowserDialog1
//
this.folderBrowserDialog1.ShowNewFolderButton = false;
//
// timer1
//
this.timer1.Interval = 1000;
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// button4
//
this.button4.Location = new System.Drawing.Point(8, 288);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(408, 23);
this.button4.TabIndex = 4;
this.button4.Text = "<< START Slide Show >>";
this.button4.Click += new System.EventHandler(this.button4_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(424, 317);
this.Controls.Add(this.button4);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.panel1);
this.Font = new System.Drawing.Font("Verdana", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Vision";
this.Load += new System.EventHandler(this.Form1_Load);
this.panel1.ResumeLayout(false);
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void button2_Click(object sender, System.EventArgs e)
{
if(folderBrowserDialog1.ShowDialog() == DialogResult.OK)
{
string [] part1=null, part2=null, part3=null;

part1 = Directory.GetFiles(folderBrowserDialog1.SelectedPath,"*.jpg");
part2 = Directory.GetFiles(folderBrowserDialog1.SelectedPath,"*.jpeg");
part3 = Directory.GetFiles(folderBrowserDialog1.SelectedPath,"*.bmp");

folderFile = new string[part1.Length + part2.Length + part3.Length];

Array.Copy(part1,0,folderFile,0,part1.Length);
Array.Copy(part2,0,folderFile,part1.Length,part2.Length);
Array.Copy(part3,0,folderFile,part1.Length + part2.Length,part3.Length);

selected = 0;
begin = 0;
end = folderFile.Length;

showImage(folderFile[selected]);

button1.Enabled = true;
button3.Enabled = true;
button4.Enabled = true;
}
}

private void showImage(string path)
{
Image imgtemp = Image.FromFile(path);
pictureBox1.Width = imgtemp.Width / 2;
pictureBox1.Height = imgtemp.Height / 2;
pictureBox1.Image = imgtemp;
}

private void prevImage()
{
if(selected == 0)
{
selected = folderFile.Length - 1;
showImage(folderFile[selected]);
}
else
{
selected = selected - 1;
showImage(folderFile[selected]);
}
}

private void nextImage()
{
if(selected == folderFile.Length - 1)
{
selected = 0;
showImage(folderFile[selected]);
}
else
{
selected = selected + 1;
showImage(folderFile[selected]);
}
}

private void button1_Click(object sender, System.EventArgs e)
{
prevImage();
}

private void button3_Click(object sender, System.EventArgs e)
{
nextImage();
}

private void timer1_Tick(object sender, System.EventArgs e)
{
nextImage();
}

private void button4_Click(object sender, System.EventArgs e)
{
if(timer1.Enabled == true)
{
timer1.Enabled = false;
button4.Text = "<< START Slide Show >>";
}
else
{
timer1.Enabled = true;
button4.Text = "<< STOP Slide Show >>";
}
}

private void Form1_Load(object sender, System.EventArgs e)
{
button1.Enabled = false;
button3.Enabled = false;
button4.Enabled = false;
}
}
}