自制简易图片尺寸调整工具[源]

今天花了一个下午+晚上写的一款简单的图片尺寸调整的小工具，满足不想用图片处理软件的用户(-_-!)



程序思想：导入一个或多个图片文件(JPG,BMP,GIF)，按自定义尺寸调整图片大小后，以剪裁或缩放的方式导出后生成所需要的图片文件。

主要代码如下：


窗体包含

        private System.Windows.Forms.GroupBox groupBox1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.GroupBox groupBox2;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.OpenFileDialog OFD;
        private System.Windows.Forms.ListBox FileList;
        string[] Files;
        private System.Windows.Forms.FolderBrowserDialog FBD;
        private System.Windows.Forms.ProgressBar pBar;
        private System.Windows.Forms.NumericUpDown picHeight;
        private System.Windows.Forms.NumericUpDown picWidth;
        private System.Windows.Forms.CheckBox IsCut;
        private System.Windows.Forms.PictureBox pictureBox1;

初始化

private void Form1_Load(object sender, System.EventArgs e)
        {
            InitMenu();
            OFD.Multiselect=true;
            OFD.Filter="jpg文件|*.jpg|gif文件|*.gif|bmp文件|*.bmp";
            button2.Enabled=false;
        }

窗体菜单

private void InitMenu()//初始窗体菜单
        {
            MainMenu mainMenu=new MainMenu();
            mainMenu.MenuItems.Add("文件(&F)");
            mainMenu.MenuItems.Add("关于(&A)",new EventHandler(About));
            mainMenu.MenuItems[0].MenuItems.Add("导入(&I)",new EventHandler(Import));
            mainMenu.MenuItems[0].MenuItems.Add("-");
            mainMenu.MenuItems[0].MenuItems.Add("退出(&X)",new EventHandler(Exit));
            
            this.Menu=mainMenu;
        }

菜单需要触发的事件

private void Import(object sender, System.EventArgs e)//导入文件
        {
            OFD.ShowDialog();
            Files=OFD.FileNames;
            if(Files.Length!=0)
            {
                for(int i=0;i<Files.Length;i++)
                {
                    FileList.Items.Add(Files[i]);
                }
                button2.Enabled=true;
            }
        }
        private void Exit(object sender, System.EventArgs e)
        {
            this.Close();
        }
        private void About(object sender, System.EventArgs e)
        {
            MessageBox.Show("简易图片大小调整工具V1.0    制作:随机");
        }

导出文件

private void button2_Click(object sender, System.EventArgs e)
        {
            FBD.ShowDialog();
            Bitmap editedPicture;
            string savePath=FBD.SelectedPath.Replace("\\","\\\\");
            if(FBD.SelectedPath.Trim().Length!=0)//是否选中路径
            {
                int PictureHeight,PictureWidth;
                try
                {
                    for(int i=0;i<FileList.Items.Count;i++)
                    {
                        //设置图片的尺寸
                        PictureWidth=Convert.ToInt16(picWidth.Text);
                        PictureHeight=Convert.ToInt16(picHeight.Text);

                        string CurrentFile=FileList.Items[i].ToString();//得到当前文件名
                        string FileEx=CurrentFile.Substring(CurrentFile.Length-3,3);//取当前文件扩展名
                        Image img=Image.FromFile(CurrentFile);
                        if(IsCut.Checked)
                        {
                            Bitmap cutPicture=(Bitmap)img;

                            //判断剪裁范围是否超出图片大小
                            if(cutPicture.Height<PictureHeight) PictureHeight=cutPicture.Height;
                            if(cutPicture.Width<PictureWidth) PictureWidth=cutPicture.Width;

                            editedPicture=cutPicture.Clone(new Rectangle(0,0,PictureWidth,PictureHeight),System.Drawing.Imaging.PixelFormat.Format24bppRgb);//剪裁图片
                        }
                        else
                        {
                            editedPicture =new Bitmap(img,PictureWidth,PictureHeight);//缩放图片
                        }
                        switch(FileEx.ToLower())//按原格式保存
                        {
                            case "jpg":editedPicture.Save(savePath+"\\NewPic_"+i.ToString()+".jpg",System.Drawing.Imaging.ImageFormat.Jpeg);break;
                            case "gif":editedPicture.Save(savePath+"\\NewPic_"+i.ToString()+".gif",System.Drawing.Imaging.ImageFormat.Gif);break;
                            case "bmp":editedPicture.Save(savePath+"\\NewPic_"+i.ToString()+".bmp",System.Drawing.Imaging.ImageFormat.Bmp);break;
                        }
                                Double ProgressValue=(i+1)/Convert.ToDouble(FileList.Items.Count)*100;
                                pBar.Value=Convert.ToInt16(ProgressValue);//进度处理
                                            }
                    MessageBox.Show("图片导出完毕！");
                    pBar.Value=0;
                }
                catch(Exception Err)
                {
                    MessageBox.Show(Err.Message);
                }
            }
        }

程序难度不大，就是一些简单的应用，当然，这是.net开发的嘛，如果是VC的话，难度就有所提高了:)


程序下载

地址： /Files/YH-Random/PicEdit.rar

程序大小：60KB

运行环境：需.Net Framework支持