c# 通过现在文件夹，获取下面所有的照片，并对其进行统一尺寸裁剪-Toy模板网

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c# 通过现在文件夹，获取下面所有的照片，并对其进行统一尺寸裁剪
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;
using System.Reflection.Emit;

namespace _11_裁剪照片
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

    private void button1_Click(object sender, EventArgs e)
    {
        ArrayList list = new ArrayList();
        string path = textBox1.Text;
        string path_bc = textBox2.Text;
        DirectoryInfo folder = new DirectoryInfo(path);
        FileSystemInfo fileinfo1 = folder as FileSystemInfo;
        list = selecte_jpg(fileinfo1);
        progressBar1.Maximum = list.Count;
        progressBar1.Minimum = 0;
        int i = 0;
        foreach (string path_jpg in list)
        {
            string pathname = path_bc +'\\' + System.IO.Path.GetFileName(path_jpg);
            cj_jpg(path_jpg, pathname);
            setPos(i);
            i++;
        }
        setPos(i);

    }

    private void cj_jpg(string path_y, string path_bc) 
    {
        Image originImage = Image.FromFile(path_y);
        //创建矩形对象表示原图上裁剪的矩形区域，这里相当于划定原图上坐标为(10, 10)处，50x50大小的矩形区域为裁剪区域
        Rectangle cropRegion = new Rectangle(0, 0, 900, 768);
        //创建空白画布，大小为裁剪区域大小
        Bitmap result = new Bitmap(cropRegion.Width, cropRegion.Height);
        //创建Graphics对象，并指定要在result（目标图片画布）上绘制图像
        Graphics graphics = Graphics.FromImage(result);
        //使用Graphics对象把原图指定区域图像裁剪下来并填充进刚刚创建的空白画布
        graphics.DrawImage(originImage, new Rectangle(0, 0, cropRegion.Width, cropRegion.Height), cropRegion, GraphicsUnit.Pixel);
        //这个时候裁剪区域图片就被填充进result对象中去了，可以对其进行保存
        result.Save(path_bc, ImageFormat.Png);
    }

    private static ArrayList selecte_jpg(FileSystemInfo info)
    {

        DirectoryInfo dir = info as DirectoryInfo;
        ArrayList listPics = new ArrayList();
        FileSystemInfo[] files = dir.GetFileSystemInfos();
        for (int i = 0; i < files.Length; i++)
        {
            FileInfo file = files[i] as FileInfo;
            //是文件
            if (file != null)
            {
                string extension = Path.GetExtension(file.Name);
                if (extension.ToUpper() == ".PNG")
                    listPics.Add(file.FullName);
            }
            else//对于子目录，进行递归调用
                selecte_jpg(files[i]);
        }
        return listPics;
    }

    private void button2_Click(object sender, EventArgs e)
    {
        FolderBrowserDialog dialog = new FolderBrowserDialog();
        dialog.Description = "请选择文件路径";

        if (dialog.ShowDialog() == DialogResult.OK)
        {
            string savePath = dialog.SelectedPath;
            textBox1.Text = savePath;
        }
    }

    private void button3_Click(object sender, EventArgs e)
    {
        string Path = "";
        FolderBrowserDialog folder = new FolderBrowserDialog();
        folder.Description = "选择文件所在文件夹目录";  //提示的文字
        if (folder.ShowDialog() == DialogResult.OK)
        {
            Path = folder.SelectedPath;
            textBox2.Text = Path;
        }
    }

    private void progressBar1_Click(object sender, EventArgs e)
    {

    }
    private void setPos(int value) //设置进度条当前进度值
    {
        if (value < progressBar1.Maximum + 1) //如果值有效
        {
            progressBar1.Value = value; //设置进度值
        }
        Application.DoEvents();//重点，必须加上，否则父子窗体都假死
    }
}

}文章来源地址https://www.toymoban.com/news/detail-425908.html

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