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frmOne.cs：源码内容
							using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace OnePhoto
{
    public partial class frmOne : Form
    {
        #region  定义私有变量
        
        /// <summary>
        /// 当前图片名称
        /// </summary>
        private string m_PicName;
        /// <summary>
        /// 当前图片路径
        /// </summary>
        private string m_thePath;
        /// <summary>
        /// 当前图片完全路径
        /// </summary>
        private string m_theFilePath;
        /// <summary>
        /// 当前图片位置
        /// </summary>
        private Point m_PicPoint;
        /// <summary>
        ///  当前光标位置
        /// </summary>
        private Point m_CurPoint;
        /// <summary>
        /// 滚轮事件
        /// </summary>
        private MouseWheeMsg m_MouseWheel;
        #endregion 
        /// <summary>
        /// 构造方法
        /// </summary>
        public frmOne()
        {
            InitializeComponent();
        }
        #region  主菜单
        private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            OpenOnePhoto();
        }
        private void 上一张ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            PerPic();
        }
        private void 下一张ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            NextPic();
        }
        private void 收藏ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SaveAsOneFile();
        }
        private void 关闭ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            CloseOnePhoto();
        }
        private void 复制ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 剪切ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 粘贴ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 查找ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 放大ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            mimZoomLarg();
        }
        private void 缩小ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            mimZoomSmall();
        }
        private void 适合大小ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            mimDisplay();
        }
        private void 原图ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            mimZoomReal();
        }
        private void 属性ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
        }
        private void 帮助主题ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 技术支持ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        private void 关于ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        #endregion 
        #region  工具栏菜单
        /// <summary>
        /// 打开
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton1_Click(object sender, EventArgs e)
        {
            OpenOnePhoto();
        }
        /// <summary>
        /// 上一张
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton2_Click(object sender, EventArgs e)
        {
            PerPic();
        }
        /// <summary>
        /// 下一张
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton3_Click(object sender, EventArgs e)
        {
            NextPic();
        }
        /// <summary>
        /// 放大
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton4_Click(object sender, EventArgs e)
        {
            mimZoomLarg();
        }
        /// <summary>
        /// 缩小
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton5_Click(object sender, EventArgs e)
        {
            mimZoomSmall();
        }
        /// <summary>
        ///适合大小
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton6_Click(object sender, EventArgs e)
        {
            mimDisplay();
        }
        /// <summary>
        /// 原图
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton7_Click(object sender, EventArgs e)
        {
            mimZoomReal();
        }
        /// <summary>
        /// 收藏
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton8_Click(object sender, EventArgs e)
        {
            SaveAsOneFile();
        }
        /// <summary>
        /// 帮助
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolStripButton9_Click(object sender, EventArgs e)
        {
        }
        #endregion
        #region  右键菜单
        private void 收藏ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            SaveAsOneFile();
        }
        private void 放大ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            mimZoomLarg();
        }
        private void 缩小ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            mimZoomSmall();
        }
        private void 适合大小ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            mimDisplay();
        }
        private void 原图ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            mimZoomReal();
        }
        private void 属性ToolStripMenuItem_Click(object sender, EventArgs e)
        {
        }
        #endregion
        /// <summary>
        /// 关闭窗体
        /// </summary>
        private void CloseOnePhoto()
        {
            this.Close();
            this.Dispose();
            Application.RemoveMessageFilter(this.m_MouseWheel);
            Application.Exit();
        }
        /// <summary>
        /// 打开图片
        /// </summary>
        private void OpenOnePhoto()
        {
            try
            {
                this.toolStripStatusLabel2.Text = "打开图片文件";
                OpenFileDialog Ofd = new OpenFileDialog();
                Ofd.Filter = "jpg(*.jpg)|*.jpg|jpeg(*.jpeg)|*.jpeg|bmp(*.bmp)|*.bmp|gif(*.gif)|*.gif|tif(*.tif)|*.tif|png(*.png)|*.png";
                Ofd.DefaultExt = "*.jpg";
                //只读
                Ofd.ShowReadOnly = true;
                Ofd.Title = "选择图片文件";
                if (Ofd.ShowDialog() == DialogResult.OK)
                {
                    int num = Ofd.FilterIndex;
                    string FileType = Ofd.DefaultExt;
                    switch(num)
                    {
                        case 1:
                            FileType = "*.jpg";
                            break;
                        case 2:
                            FileType = "*.jpeg";
                            break;
                        case 3:
                            FileType = "*.bmp";
                            break;
                        case 4:
                            FileType = "*.gif";
                            break;
                        case 5:
                             FileType = "*.tif";
                            break;
                        case 6:
                             FileType = "*.png";
                            break;
                         default:
                             FileType = "*.jpg";
                            break;
                    }
                    m_theFilePath = Ofd.FileName;
                    ListOnePhoto(m_theFilePath, FileType);
                    string theName = Ofd.FileName;
                    int FileStart = theName.LastIndexOf("\");
                    int FileLen = (theName.Length - FileStart);
                    m_PicName = theName.Substring(FileStart + 1, FileLen - 1);
                    this.Text = "图片查看器  " + m_PicName;
                    this.toolStripStatusLabel1.Text = "名称：" + m_PicName;
                    this.toolStripStatusLabel2.Text = "打开图片" + m_PicName;
                    this.toolStripStatusLabel3.Text = System.DateTime.Today.ToLongDateString();
                    this.pictureBoxPic.Image = Image.FromFile(m_theFilePath);
                    this.pictureBoxPic.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
                    this.mimZoomReal();
                }
                else
                {
                    this.toolStripStatusLabel2.Text = "取消选择图片文件";
                }
                Ofd.Dispose();
            }
            catch (Exception e1)
            {
                this.toolStripStatusLabel2.Text = "打开图片失败,原因：" + e1.Message.ToString() + "！";
            }
        }
        #region 图片放大缩小
        /// <summary>
        /// 放大
        /// </summary>
        private void mimZoomLarg()
        {
            if ((this.pictureBoxPic.Image != null) && (this.pictureBoxPic.Width < 2000))
            {
                this.toolStripStatusLabel2.Text = "放大图片＋5%" ;
                this.pictureBoxPic.Width = System.Convert.ToInt32(this.pictureBoxPic.Width * (1 + 0.1));
                this.pictureBoxPic.Height = System.Convert.ToInt32(this.pictureBoxPic.Height * (1 + 0.1));
                int Picx = System.Convert.ToInt32((this.panelImg.Width - this.pictureBoxPic.Width) * 0.5);
                int Picy = System.Convert.ToInt32((this.panelImg.Height - this.pictureBoxPic.Height) * 0.5);
                this.pictureBoxPic.Location = new System.Drawing.Point(Picx, Picy);
            }
        }// end void
        /// <summary>
        /// 缩小
        /// </summary>
        private void mimZoomSmall()
        {
            if (this.pictureBoxPic.Image != null && (this.pictureBoxPic.Width > 100))
            {
                this.toolStripStatusLabel2.Text = "缩小图片－5%";
                this.pictureBoxPic.Width = System.Convert.ToInt32(this.pictureBoxPic.Width / (1 + 0.1));
                this.pictureBoxPic.Height = System.Convert.ToInt32(this.pictureBoxPic.Height / (1 + 0.1));
                int Picx = System.Convert.ToInt32((this.panelImg.Width - this.pictureBoxPic.Width) * 0.5);
                int Picy = System.Convert.ToInt32((this.panelImg.Height - this.pictureBoxPic.Height) * 0.5);
                this.pictureBoxPic.Location = new System.Drawing.Point(Picx, Picy);
            }
        }// end void
        /// <summary>
        /// 原图
        /// </summary>
        private void mimZoomReal()
        {
            if (this.pictureBoxPic.Image != null)
            {
                this.toolStripStatusLabel2.Text = "图片原始大小显示";
                this.pictureBoxPic.Width = this.pictureBoxPic.Image.Width;
                this.pictureBoxPic.Height = this.pictureBoxPic.Image.Height;
                int Picx = System.Convert.ToInt32((this.panelImg.Width - this.pictureBoxPic.Width) * 0.5);
                int Picy = System.Convert.ToInt32((this.panelImg.Height - this.pictureBoxPic.Height) * 0.5);
                this.pictureBoxPic.Location = new System.Drawing.Point(Picx, Picy);
            }
        }// end void
        /// <summary>
        /// 适合大小
        /// </summary>
        private void mimDisplay()
        {
            if (this.pictureBoxPic.Image != null)
            {
                this.toolStripStatusLabel2.Text = "图片适合大小显示";
                int dWidth = this.pictureBoxPic.Image.Width;
                int dHeight = this.pictureBoxPic.Image.Height;
                decimal i = dWidth / dHeight;
                if (i == 0)
                {
                    i = 1;
                }
                this.pictureBoxPic.Width = this.panelImg.Width - 16;
                this.pictureBoxPic.Height = System.Convert.ToInt32(this.panelImg.Width / i);
                if (this.pictureBoxPic.Height > this.panelImg.Height)
                {
                    this.pictureBoxPic.Height = this.panelImg.Height - 32;
                    this.pictureBoxPic.Width = System.Convert.ToInt32(this.panelImg.Height * i);
                }
                int Picx = System.Convert.ToInt32((this.panelImg.Width - this.pictureBoxPic.Width) * 0.5);
                int Picy = System.Convert.ToInt32((this.panelImg.Height - this.pictureBoxPic.Height) * 0.5);
                this.pictureBoxPic.Location = new System.Drawing.Point(Picx, Picy);
            }
        }// end void
        #endregion 
        /// <summary>
        /// 加载窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void frmOne_Load(object sender, EventArgs e)
        {
            /////定义鼠标滚轮事件
            this.m_MouseWheel = new MouseWheeMsg();
            Application.AddMessageFilter(this.m_MouseWheel);
            this.m_MouseWheel.MouseWheel += new MouseWheelHandler(MouseWheeMsg_MouseWheel);
            OpenOnePhoto();
        }// end void
        #region 图片移动
        private void pictureBoxPic_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.m_PicPoint = new Point(e.X - this.m_CurPoint.X, e.Y - this.m_CurPoint.Y);
                this.m_PicPoint.Offset(this.pictureBoxPic.Location.X, this.pictureBoxPic.Location.Y);
                this.pictureBoxPic.Location = this.m_PicPoint;
            }// end if
        }
        private void pictureBoxPic_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            this.m_CurPoint = this.pictureBoxPic.PointToClient(System.Windows.Forms.Cursor.Position);
        }
        /// <summary>
        /// 滚轮滚动
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="isDelta"></param>
        private void MouseWheeMsg_MouseWheel(object sender, bool isDelta)
        {
            if (isDelta)
            {
                mimZoomSmall();
            }
            else
            {
                mimZoomLarg();
            }
        }//end void
        private void pictureBoxPic_MouseLeave(object sender, EventArgs e)
        {
            this.Cursor = System.Windows.Forms.Cursors.Default;
            /////////////移出鼠标滚轮事件
            //Application.RemoveMessageFilter( this.m_MouseWheeMsg );	
            this.m_MouseWheel.SetHandleType = false;
        }//end void
        private void pictureBoxPic_MouseEnter(object sender, EventArgs e)
        {
            this.Cursor = System.Windows.Forms.Cursors.Hand;
            /////////////增加鼠标滚轮事件
            this.m_MouseWheel.SetHandleType = true;
            //Application.AddMessageFilter( this.m_MouseWheeMsg );
        }//end void
        #endregion
        /// <summary>
        /// 显示图片列表
        /// </summary>
        private void ListOnePhoto(string PicFilePath, string FileType )
        {
           
            int Fileend = PicFilePath.LastIndexOf("\");
            m_thePath = PicFilePath.Substring(0, Fileend);
            try
            {
                this.listView1.Columns.Clear();
                this.listView1.Items.Clear();
                this.listView1.Columns.Add("图片",170);
                if (System.IO.Directory.Exists(m_thePath))
                {
                    string[] s = System.IO.Directory.GetFileSystemEntries(m_thePath, FileType);
                    int j = s.Length;
                    if (j > 0)
                    {
                        string filesname = null;
                        for (int i = 0; i < j; i++)
                        {
                            string[] thifiles = System.IO.Directory.GetFiles(m_thePath, FileType);
                            filesname = thifiles.GetValue(i).ToString().Trim();
                            int FileStart = filesname.LastIndexOf("\");
                            int FileLen = (filesname.Length - FileStart);
                            filesname = filesname.Substring(FileStart + 1, FileLen - 1);
                           this.listView1.Items.Add(filesname,0);
                        }//end for
                    }
                    else
                    {
                        this.toolStripStatusLabel2.Text = "当前路径下没有文件！";
                    }
                }// end if
                else
                {
                    this.toolStripStatusLabel2.Text = "当前路径无效！请重新选择文件路径！";
                }
            }
            catch (Exception e1)
            {
                 this.toolStripStatusLabel2.Text = "选择图片文件异常！";
                string right = e1.Message.ToString();
            }// end catch
        }
        /// <summary>
        /// 获取路径
        /// </summary>
        /// <returns></returns>
        private string GetSavePath()
        {
            string Path = "";
            System.Windows.Forms.FolderBrowserDialog 　fbdPic 　= new FolderBrowserDialog();
            if (fbdPic.ShowDialog() == DialogResult.OK)
            {
                Path = fbdPic.SelectedPath;
            }
            return Path;
        }
        /// <summary>
        /// 图片收藏另存
        /// </summary>
        private void SaveAsOneFile()
        {
            try
            {
                System.Drawing.Image theImg = this.pictureBoxPic.Image;
                if (theImg != null )
                {
                    string FileName = this.toolStripStatusLabel1.Text.Replace("名称：", "");
                    if (FileName.IndexOf(".", 0) <= 0)
                    {
                        FileName = FileName + ".jpeg";
                    }
                    string Path = GetSavePath();
                    if (Path != "" && Path != null)
                    {
                        if (!System.IO.Directory.Exists(Path))
                        {
                            System.IO.Directory.CreateDirectory(Path);
                        }
                        string FullPath = Path + @"" + FileName;
                        this.toolStripStatusLabel2.Text = "正在保存图片 " + FileName;
                        this.Cursor = System.Windows.Forms.Cursors.WaitCursor;
                        byte[] bytFiles;
                        using (System.IO.MemoryStream thems = new System.IO.MemoryStream())
                        {
                            theImg.Save(thems, System.Drawing.Imaging.ImageFormat.Jpeg);
                            bytFiles = thems.ToArray();
                            thems.Close();
                        }
                        using (System.IO.FileStream fs = new System.IO.FileStream(FullPath, System.IO.FileMode.Create, System.IO.FileAccess.ReadWrite))
                        {
                            fs.Write(bytFiles, 0, bytFiles.Length);
                            fs.Close();
                        }// end using
                        this.toolStripStatusLabel2.Text = "图片 " + FileName + " 保存成功！" + "收藏夹路径 " + Path + " ！";
                        this.Cursor = System.Windows.Forms.Cursors.Default;
                    }
                    else
                    {
                        toolStripStatusLabel2.Text = "没有选择一个收藏夹,不能保存图片！";
                    }
                }
                else
                {
                    toolStripStatusLabel2.Text = "没有选择图片,请打开一个图片！";
                }
            }//try
            catch (Exception e)
            {
                string Sreason = e.Message.ToString();
                toolStripStatusLabel2.Text = "图片保存失败！";
            }// end catch
        }// end void
        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            //检查是否有选择的项,如果没有选择的项则禁用 打开
            int SelCount = this.listView1.SelectedItems.Count;
            if (SelCount == 1)
            {
                this.m_PicName = this.listView1.SelectedItems[0].SubItems[0].Text;
                this.Text = "图片查看器  " + m_PicName;
                m_theFilePath = this.m_thePath + @"" + m_PicName;
                this.toolStripStatusLabel3.Text = System.DateTime.Today.ToLongDateString();
                this.pictureBoxPic.Image = Image.FromFile(m_theFilePath);
                this.pictureBoxPic.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
                this.mimZoomReal();
                this.toolStripStatusLabel1.Text = "名称：" + m_PicName;
                this.toolStripStatusLabel2.Text = "打开图片" + m_PicName;
            }
        }
        /// <summary>
        ///　　下一张图片
        /// </summary>
        /// <returns></returns>
        private void NextPic()
        {
           
            int  PicNum  = this.listView1.Items.Count;
            for (int i = 0; i < (PicNum - 1); i++)
            {
                string name = this.listView1.Items[i].SubItems[0].Text;
                if (name == this.m_PicName)
                {
                    this.m_PicName = this.listView1.Items[i + 1].SubItems[0].Text;
                    this.listView1.Items[i + 1].Selected = true;
                    break;
                }
            }
           
        }//end void 
        /// <summary>
        ///上一张图片
        /// </summary>
        /// <returns></returns>
        private void PerPic()
        {
            int PicNum = this.listView1.Items.Count;
            for (int i = 0; i < (PicNum); i++)
            {
                string name = this.listView1.Items[i].SubItems[0].Text;
                if( (name == this.m_PicName) && ( i > 0 ))
                {  
                    this.m_PicName = this.listView1.Items[i - 1].SubItems[0].Text;
                    this.listView1.Items[ i - 1].Selected = true;
                    break;
                }
            }
        }//end void 
    }
}

						