namespace ImageCompact

{

    partial class MainForm

    {

        /// <summary>

        /// 必需的设计器变量。

        /// </summary>

        private System.ComponentModel.IContainer components = null;

        /// <summary>

        /// 清理所有正在使用的资源。

        /// </summary>

        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (components != null))

            {

                components.Dispose();

            }

            base.Dispose(disposing);

        }

        #region Windows 窗体设计器生成的代码

        /// <summary>

        /// 设计器支持所需的方法 - 不要

        /// 使用代码编辑器修改此方法的内容。

        /// </summary>

        private void InitializeComponent()

        {

            this.groupBox1 = new System.Windows.Forms.GroupBox();

            this.lvSourceFolderList = new System.Windows.Forms.ListView();

            this.columnHeader1 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));

            this.btnSelectSourceFolder = new System.Windows.Forms.Button();

            this.label1 = new System.Windows.Forms.Label();

            this.tbSourceFolderPath = new System.Windows.Forms.TextBox();

            this.groupBox2 = new System.Windows.Forms.GroupBox();

            this.label6 = new System.Windows.Forms.Label();

            this.label5 = new System.Windows.Forms.Label();

            this.cbQualityRate = new System.Windows.Forms.ComboBox();

            this.cbSizeRate = new System.Windows.Forms.ComboBox();

            this.label4 = new System.Windows.Forms.Label();

            this.label3 = new System.Windows.Forms.Label();

            this.lvResultList = new System.Windows.Forms.ListView();

            this.压缩文件 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));

            this.压缩结果 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));

            this.btnSelectTargetFolder = new System.Windows.Forms.Button();

            this.label2 = new System.Windows.Forms.Label();

            this.tbTargetFolderPath = new System.Windows.Forms.TextBox();

            this.lbInfomation = new System.Windows.Forms.Label();

            this.btnClose = new System.Windows.Forms.Button();

            this.btnStart = new System.Windows.Forms.Button();

            this.folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();

            this.groupBox1.SuspendLayout();

            this.groupBox2.SuspendLayout();

            this.SuspendLayout();

            //

            // groupBox1

            //

            this.groupBox1.Controls.Add(this.lvSourceFolderList);

            this.groupBox1.Controls.Add(this.btnSelectSourceFolder);

            this.groupBox1.Controls.Add(this.label1);

            this.groupBox1.Controls.Add(this.tbSourceFolderPath);

            this.groupBox1.Location = new System.Drawing.Point(, );

            this.groupBox1.Name = "groupBox1";

            this.groupBox1.Size = new System.Drawing.Size(, );

            this.groupBox1.TabIndex = ;

            this.groupBox1.TabStop = false;

            this.groupBox1.Text = "文件来源";

            //

            // lvSourceFolderList

            //

            this.lvSourceFolderList.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {

            this.columnHeader1});

            this.lvSourceFolderList.FullRowSelect = true;

            this.lvSourceFolderList.GridLines = true;

            this.lvSourceFolderList.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;

            this.lvSourceFolderList.Location = new System.Drawing.Point(, );

            this.lvSourceFolderList.MultiSelect = false;

            this.lvSourceFolderList.Name = "lvSourceFolderList";

            this.lvSourceFolderList.Size = new System.Drawing.Size(, );

            this.lvSourceFolderList.TabIndex = ;

            this.lvSourceFolderList.UseCompatibleStateImageBehavior = false;

            this.lvSourceFolderList.View = System.Windows.Forms.View.Details;

            //

            // columnHeader1

            //

            this.columnHeader1.Text = "图片文件";

            this.columnHeader1.Width = ;

            //

            // btnSelectSourceFolder

            //

            this.btnSelectSourceFolder.Location = new System.Drawing.Point(, );

            this.btnSelectSourceFolder.Name = "btnSelectSourceFolder";

            this.btnSelectSourceFolder.Size = new System.Drawing.Size(, );

            this.btnSelectSourceFolder.TabIndex = ;

            this.btnSelectSourceFolder.Text = "浏览";

            this.btnSelectSourceFolder.UseVisualStyleBackColor = true;

            this.btnSelectSourceFolder.Click += new System.EventHandler(this.btnSelectSourceFolder_Click);

            //

            // label1

            //

            this.label1.AutoSize = true;

            this.label1.Location = new System.Drawing.Point(, );

            this.label1.Name = "label1";

            this.label1.Size = new System.Drawing.Size(, );

            this.label1.TabIndex = ;

            this.label1.Text = "选择文件夹";

            //

            // tbSourceFolderPath

            //

            this.tbSourceFolderPath.Location = new System.Drawing.Point(, );

            this.tbSourceFolderPath.Name = "tbSourceFolderPath";

            this.tbSourceFolderPath.Size = new System.Drawing.Size(, );

            this.tbSourceFolderPath.TabIndex = ;

            //

            // groupBox2

            //

            this.groupBox2.Controls.Add(this.label6);

            this.groupBox2.Controls.Add(this.label5);

            this.groupBox2.Controls.Add(this.cbQualityRate);

            this.groupBox2.Controls.Add(this.cbSizeRate);

            this.groupBox2.Controls.Add(this.label4);

            this.groupBox2.Controls.Add(this.label3);

            this.groupBox2.Controls.Add(this.lvResultList);

            this.groupBox2.Controls.Add(this.btnSelectTargetFolder);

            this.groupBox2.Controls.Add(this.label2);

            this.groupBox2.Controls.Add(this.tbTargetFolderPath);

            this.groupBox2.Location = new System.Drawing.Point(, );

            this.groupBox2.Name = "groupBox2";

            this.groupBox2.Size = new System.Drawing.Size(, );

            this.groupBox2.TabIndex = ;

            this.groupBox2.TabStop = false;

            this.groupBox2.Text = "保存到";

            //

            // label6

            //

            this.label6.AutoSize = true;

            this.label6.Location = new System.Drawing.Point(, );

            this.label6.Name = "label6";

            this.label6.Size = new System.Drawing.Size(, );

            this.label6.TabIndex = ;

            this.label6.Text = "%";

            //

            // label5

            //

            this.label5.AutoSize = true;

            this.label5.Location = new System.Drawing.Point(, );

            this.label5.Name = "label5";

            this.label5.Size = new System.Drawing.Size(, );

            this.label5.TabIndex = ;

            this.label5.Text = "%";

            //

            // cbQualityRate

            //

            this.cbQualityRate.FormattingEnabled = true;

            this.cbQualityRate.Items.AddRange(new object[] {

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            ""});

            this.cbQualityRate.Location = new System.Drawing.Point(, );

            this.cbQualityRate.Name = "cbQualityRate";

            this.cbQualityRate.Size = new System.Drawing.Size(, );

            this.cbQualityRate.TabIndex = ;

            //

            // cbSizeRate

            //

            this.cbSizeRate.FormattingEnabled = true;

            this.cbSizeRate.Items.AddRange(new object[] {

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            "",

            ""});

            this.cbSizeRate.Location = new System.Drawing.Point(, );

            this.cbSizeRate.Name = "cbSizeRate";

            this.cbSizeRate.Size = new System.Drawing.Size(, );

            this.cbSizeRate.TabIndex = ;

            //

            // label4

            //

            this.label4.AutoSize = true;

            this.label4.Location = new System.Drawing.Point(, );

            this.label4.Name = "label4";

            this.label4.Size = new System.Drawing.Size(, );

            this.label4.TabIndex = ;

            this.label4.Text = "压缩质量:";

            //

            // label3

            //

            this.label3.AutoSize = true;

            this.label3.Location = new System.Drawing.Point(, );

            this.label3.Name = "label3";

            this.label3.Size = new System.Drawing.Size(, );

            this.label3.TabIndex = ;

            this.label3.Text = "压缩大小:";

            //

            // lvResultList

            //

            this.lvResultList.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {

            this.压缩文件,

            this.压缩结果});

            this.lvResultList.FullRowSelect = true;

            this.lvResultList.GridLines = true;

            this.lvResultList.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;

            this.lvResultList.Location = new System.Drawing.Point(, );

            this.lvResultList.MultiSelect = false;

            this.lvResultList.Name = "lvResultList";

            this.lvResultList.Size = new System.Drawing.Size(, );

            this.lvResultList.TabIndex = ;

            this.lvResultList.UseCompatibleStateImageBehavior = false;

            this.lvResultList.View = System.Windows.Forms.View.Details;

            //

            // 压缩文件

            //

            this.压缩文件.Text = "压缩文件";

            this.压缩文件.Width = ;

            //

            // 压缩结果

            //

            this.压缩结果.Text = "压缩结果";

            this.压缩结果.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;

            this.压缩结果.Width = ;

            //

            // btnSelectTargetFolder

            //

            this.btnSelectTargetFolder.Location = new System.Drawing.Point(, );

            this.btnSelectTargetFolder.Name = "btnSelectTargetFolder";

            this.btnSelectTargetFolder.Size = new System.Drawing.Size(, );

            this.btnSelectTargetFolder.TabIndex = ;

            this.btnSelectTargetFolder.Text = "浏览";

            this.btnSelectTargetFolder.UseVisualStyleBackColor = true;

            this.btnSelectTargetFolder.Click += new System.EventHandler(this.btnSelectTargetFolder_Click);

            //

            // label2

            //

            this.label2.AutoSize = true;

            this.label2.Location = new System.Drawing.Point(, );

            this.label2.Name = "label2";

            this.label2.Size = new System.Drawing.Size(, );

            this.label2.TabIndex = ;

            this.label2.Text = "选择文件夹";

            //

            // tbTargetFolderPath

            //

            this.tbTargetFolderPath.Location = new System.Drawing.Point(, );

            this.tbTargetFolderPath.Name = "tbTargetFolderPath";

            this.tbTargetFolderPath.Size = new System.Drawing.Size(, );

            this.tbTargetFolderPath.TabIndex = ;

            //

            // lbInfomation

            //

            this.lbInfomation.AutoSize = true;

            this.lbInfomation.Location = new System.Drawing.Point(, );

            this.lbInfomation.Name = "lbInfomation";

            this.lbInfomation.Size = new System.Drawing.Size(, );

            this.lbInfomation.TabIndex = ;

            this.lbInfomation.Text = "已经停止";

            //

            // btnClose

            //

            this.btnClose.Location = new System.Drawing.Point(, );

            this.btnClose.Name = "btnClose";

            this.btnClose.Size = new System.Drawing.Size(, );

            this.btnClose.TabIndex = ;

            this.btnClose.Text = "关闭";

            this.btnClose.UseVisualStyleBackColor = true;

            this.btnClose.Click += new System.EventHandler(this.btnClose_Click);

            //

            // btnStart

            //

            this.btnStart.Location = new System.Drawing.Point(, );

            this.btnStart.Name = "btnStart";

            this.btnStart.Size = new System.Drawing.Size(, );

            this.btnStart.TabIndex = ;

            this.btnStart.Text = "开始压缩";

            this.btnStart.UseVisualStyleBackColor = true;

            this.btnStart.Click += new System.EventHandler(this.btnStart_Click);

            //

            // MainForm

            //

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.ClientSize = new System.Drawing.Size(, );

            this.Controls.Add(this.btnStart);

            this.Controls.Add(this.btnClose);

            this.Controls.Add(this.lbInfomation);

            this.Controls.Add(this.groupBox2);

            this.Controls.Add(this.groupBox1);

            this.Name = "MainForm";

            this.Text = "图片批量压缩";

            this.groupBox1.ResumeLayout(false);

            this.groupBox1.PerformLayout();

            this.groupBox2.ResumeLayout(false);

            this.groupBox2.PerformLayout();

            this.ResumeLayout(false);

            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.GroupBox groupBox1;

        private System.Windows.Forms.GroupBox groupBox2;

        private System.Windows.Forms.Label label1;

        private System.Windows.Forms.TextBox tbSourceFolderPath;

        private System.Windows.Forms.Button btnSelectSourceFolder;

        private System.Windows.Forms.Button btnSelectTargetFolder;

        private System.Windows.Forms.Label label2;

        private System.Windows.Forms.TextBox tbTargetFolderPath;

        private System.Windows.Forms.ListView lvSourceFolderList;

        private System.Windows.Forms.ListView lvResultList;

        private System.Windows.Forms.Label label4;

        private System.Windows.Forms.Label label3;

        private System.Windows.Forms.Label label6;

        private System.Windows.Forms.Label label5;

        private System.Windows.Forms.ComboBox cbQualityRate;

        private System.Windows.Forms.ComboBox cbSizeRate;

        private System.Windows.Forms.Label lbInfomation;

        private System.Windows.Forms.Button btnClose;

        private System.Windows.Forms.Button btnStart;

        private System.Windows.Forms.ColumnHeader columnHeader1;

        private System.Windows.Forms.ColumnHeader 压缩文件;

        private System.Windows.Forms.ColumnHeader 压缩结果;

        private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog;

    }

}

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;

using Microsoft.Win32;

using System.IO;

using System.Threading;

using System.Drawing.Imaging;

namespace ImageCompact

{

    public partial class MainForm : Form

    {

        /// <summary>

        /// 定义文件列表

        /// </summary>

        private IList<string> imageList = new List<string>();

        /// <summary>

        /// 压缩结果信息

        /// </summary>

        /// <param name="file"></param>

        /// <param name="result"></param>

        private delegate void DelegateWriteResult(string file, bool result);

        /// <summary>

        /// 压缩状态信息

        /// </summary>

        /// <param name="message"></param>

        private delegate void DelegateWriteMessage(string message);

        public MainForm()

        {

            InitializeComponent();

            //压缩大小默认显示选项

            cbSizeRate.SelectedIndex = ;

            //压缩质量默认显示选项

            cbQualityRate.SelectedIndex = ;

         RegistryKey folders;

         folders = OpenRegistryPath(Registry.CurrentUser, @"\software\microsoft\windows\currentversion\explorer\shell folders");

            //保存的选择文件夹默认路径

         tbTargetFolderPath.Text = folders.GetValue("Desktop").ToString();

        }

        /// <summary>

        /// 获得注册表键对象

        /// </summary>

        /// <returns></returns>

        private RegistryKey OpenRegistryPath(RegistryKey root, string s)

        {

            s = s.Remove(, ) + @"\";

            while (s.IndexOf(@"\") != -)

            {

                root = root.OpenSubKey(s.Substring(, s.IndexOf(@"\")));

                s = s.Remove(, s.IndexOf(@"\") + );

            }

            return root;

        }

        /// <summary>

        /// 浏览选择文件夹

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnSelectSourceFolder_Click(object sender, EventArgs e)

        {

            if (DialogResult.OK == folderBrowserDialog.ShowDialog())

            {

                this.lvSourceFolderList.Items.Clear();

                tbSourceFolderPath.Text = folderBrowserDialog.SelectedPath;

                ListFiles(new DirectoryInfo(tbSourceFolderPath.Text));

            }

        }

        /// <summary>

        /// 遍历文件

        /// </summary>

        /// <param name="info"></param>

        public void ListFiles(FileSystemInfo info)

        {

            if (!info.Exists) return;

            DirectoryInfo dir = info as DirectoryInfo;

            if (dir == null) return;

            FileSystemInfo[] files = dir.GetFileSystemInfos();

            for (int i = ; i < files.Length; i++)

            {

                FileInfo file = files[i] as FileInfo;

                if (file != null && file.Name.Trim().LastIndexOf(".") > -)

                {

                    if (file.Name.Substring(file.Name.LastIndexOf(".")).ToUpper() == ".JPG")

                    {

                        this.lvSourceFolderList.Items.Add(file.FullName);

                        imageList.Add(file.FullName);

                    }

                }

                else

                {

                    ListFiles(files[i]); //对于子目录，进行递归调用

                }

            }

        }

        /// <summary>

        /// 将文件列表加载到list中

        /// </summary>

        /// <param name="path"></param>

        //private void ScanFolder(string path)

        //{

        //    imageList = new List<string>();

        //    string[] images = Directory.GetFiles(path, "*.bmp");

        //    for (int i = 0; i < images.Length; i++)

        //    {

        //        imageList.Add(images[i]);

        //    }

        //    images = Directory.GetFiles(path, "*.png");

        //    for (int i = 0; i < images.Length; i++)

        //    {

        //        imageList.Add(images[i]);

        //    }

        //    images = Directory.GetFiles(path, "*.jpg");

        //    for (int i = 0; i < images.Length; i++)

        //    {

        //        imageList.Add(images[i]);

        //    }

        //    if (imageList.Count > 0)

        //    {

        //        ListFiles();

        //    }

        //}

        /// <summary>

        /// 加载文件列表到listview

        /// </summary>

        private void ListFiles()

        {

            lvSourceFolderList.Items.Clear();

            foreach (string item in imageList)

            {

                lvSourceFolderList.Items.Add(item);

            }

        }

        /// <summary>

        /// 保存到文件路径  的 选择文件夹

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnSelectTargetFolder_Click(object sender, EventArgs e)

        {

            if (DialogResult.OK == folderBrowserDialog.ShowDialog())

            {

                tbTargetFolderPath.Text = folderBrowserDialog.SelectedPath;

            }

        }

        /// <summary>

        /// 退出

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnClose_Click(object sender, EventArgs e)

        {

            Application.Exit();

        }

        /// <summary>

        /// 开始压缩

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnStart_Click(object sender, EventArgs e)

        {

            if (!Directory.Exists(tbTargetFolderPath.Text))

            {

            MessageBox.Show("目标文件夹不存在，请先建立这个文件夹。", "存储错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);

            }

            if (Directory.GetFiles(tbTargetFolderPath.Text).Length > )

            {

            if (DialogResult.OK != MessageBox.Show("目标文件夹不是空的，同名文件将被覆盖，确认？", "目标文件夹不是空的", MessageBoxButtons.OKCancel, MessageBoxIcon.Question))

            {

            return;

            }

            }

            lvResultList.Items.Clear();

            Thread workThread = new Thread(new ThreadStart(CompressAll));

            workThread.IsBackground = true;

            workThread.Start();

            }

        /// <summary>

        /// 压缩所有文件

        /// </summary>

        private void CompressAll()

        {

            string message = "";

            foreach (string item in imageList)

            {

                int index = item.LastIndexOf("\\");

                if (index != -)

                {

                    string fileName = item.Substring(index + );

                    string targetFilePath = tbTargetFolderPath.Text + "\\" + fileName;

                    message = "正在处理" + fileName;

                    if (this.InvokeRequired)

                    {

                        this.Invoke(new DelegateWriteMessage(WriteMessage), new object[] { message });

                    }

                    else

                    {

                        this.WriteMessage(message);

                    }

                    if (CompressPicture(item, targetFilePath))

                    {

                        if (this.InvokeRequired)

                        {

                            this.Invoke(new DelegateWriteResult(WriteResult), new object[] { item, true });

                        }

                        else

                        {

                            this.WriteResult(item, true);

                        }

                    }

                    else

                    {

                        if (this.InvokeRequired)

                        {

                            this.Invoke(new DelegateWriteResult(WriteResult), new object[] { item, false });

                        }

                        else

                        {

                            this.WriteResult(item, false);

                        }

                    }

                }

            }

            message = "全部完成";

            if (this.InvokeRequired)

            {

                this.Invoke(new DelegateWriteMessage(WriteMessage), new object[] { message });

            }

            else

            {

                this.WriteMessage(message);

            }

        }

        /// <summary>

        /// 显示状态信息

        /// </summary>

        /// <param name="message"></param>

        private void WriteMessage(string message)

        {

            lbInfomation.Text = message;

        }

        /// <summary>

        /// 显示压缩结果信息

        /// </summary>

        /// <param name="fileName"></param>

        /// <param name="result"></param>

        private void WriteResult(string fileName, bool result)

        {

            if (result)

            {

                ListViewItem thisListItem = new ListViewItem();

                thisListItem.ForeColor = Color.White;

                thisListItem.BackColor = Color.DarkGreen;

                thisListItem.SubItems[].Text = fileName;

                thisListItem.SubItems.Add("成功");

                lvResultList.Items.Add(thisListItem);

            }

            else

            {

                ListViewItem thisListItem = new ListViewItem();

                thisListItem.ForeColor = Color.White;

                thisListItem.BackColor = Color.Red;

                thisListItem.SubItems[].Text = fileName;

                thisListItem.SubItems.Add("失败");

                lvResultList.Items.Add(thisListItem);

            }

        }

        /// <summary>

        /// 压缩图片方法

        /// </summary>

        /// <param name="sourcePath">原目录</param>

        /// <param name="targetPath">目标目录</param>

        /// <returns>压缩是否成功</returns>

        private bool CompressPicture(string sourcePath, string targetPath)

        {

            try

            {

                double sizeRate = double.Parse(cbSizeRate.Text) / ;// 大小比率

                int qualityRate = int.Parse(cbQualityRate.Text);// 品质比率

                Image sourceImage = Image.FromFile(sourcePath);

                //调整图片大小

                Bitmap bmp = new Bitmap(sourceImage, new Size((int)(sourceImage.Width * sizeRate), (int)(sourceImage.Height * sizeRate)));

                //压缩图片

                SaveAsJPEG(bmp, targetPath, qualityRate);

                GC.Collect();

                return true;

            }

            catch

            {

                return false;

            }

        }

        /// <summary>

        /// 保存为JPEG格式，支持压缩质量选项

        /// </summary>

        /// <param name="bmp">原始位图</param>

        /// <param name="FileName">新文件地址</param>

        /// <param name="Qty">压缩质量，越大越好，文件也越大(0-100)</param>

        /// <returns>成功标志</returns>

        public static bool SaveAsJPEG(Bitmap bmp, string FileName, int Qty)

        {

            try

            {

                EncoderParameter p;

                EncoderParameters ps;

                ps = new EncoderParameters();

                p = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, Qty);

                ps.Param[] = p;

                bmp.Save(FileName, GetCodecInfo("image/jpeg"), ps);

                return true;

            }

            catch

            {

                return false;

            }

        }

        /// <summary>

        /// 保存JPG时用

        /// </summary>

        /// <param name="mimeType"></param>

        /// <returns>得到指定mimeType的ImageCodecInfo</returns>

        private static ImageCodecInfo GetCodecInfo(string mimeType)

        {

            ImageCodecInfo[] CodecInfo = ImageCodecInfo.GetImageEncoders();

            foreach (ImageCodecInfo ici in CodecInfo)

            {

                if (ici.MimeType == mimeType) return ici;

            }

            return null;

        }

    }

}