py 转换图片格式.md

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
转换图片格式
"""
import os
from PIL import Image
import tkinter
import tkinter.filedialog
import tkinter.messagebox


class Window:
    def __init__(self):
        self.root = root = tkinter.Tk()
        label = tkinter.Label(root, text='选择目录')
        label.place(x=5, y=5)
        self.entry = tkinter.Entry(root)
        self.entry.place(x=60, y=5)
        self.buttonBrowser = tkinter.Button(root, text='浏览', command=self.Browser)
        self.buttonBrowser.place(x=210, y=5)
        frameF = tkinter.Frame(root)
        frameF.place(x=5, y=30)
        frameT = tkinter.Frame(root)
        frameT.place(x=100, y=30)
        self.fImage = tkinter.StringVar()
        self.tImage = tkinter.StringVar()
        self.status = tkinter.StringVar()
        self.fImage.set('.bmp')
        self.tImage.set('.bmp')
        labelFrom = tkinter.Label(frameF, text='From')
        labelFrom.pack(anchor='w')
        labelTo = tkinter.Label(frameT, text='To')
        labelTo.pack(anchor='w')

        frBmp = tkinter.Radiobutton(frameF, variable=self.fImage, value='.bmp', text='BMP')
        frBmp.pack(anchor='w')
        frJpg = tkinter.Radiobutton(frameF, variable=self.fImage, value='.jpg', text='JPG')
        frJpg.pack(anchor='w')
        frGif = tkinter.Radiobutton(frameF, variable=self.fImage, value='.gif', text='GIF')
        frGif.pack(anchor='w')
        frPng = tkinter.Radiobutton(frameF, variable=self.fImage, value='.png', text='PNG')
        frPng.pack(anchor='w')

        trBmp = tkinter.Radiobutton(frameT, variable=self.tImage, value='.bmp', text='BMP')
        trBmp.pack(anchor='w')
        trJpg = tkinter.Radiobutton(frameT, variable=self.tImage, value='.jpg', text='JPG')
        trJpg.pack(anchor='w')
        trGif = tkinter.Radiobutton(frameT, variable=self.tImage, value='.gif', text='GIF')
        trGif.pack(anchor='w')
        trPng = tkinter.Radiobutton(frameT, variable=self.tImage, value='.png', text='PNG')
        trPng.pack(anchor='w')

        self.buttonConv = tkinter.Button(root, text='转换', command=self.Conv)
        self.buttonConv.place(x=80, y=160)
        self.labelStatus = tkinter.Label(root, textvariable=self.status)
        self.labelStatus.place(x=50, y=195)

    def MainLoop(self):
        self.root.minsize(250, 220)
        self.root.maxsize(250, 220)
        self.root.mainloop()

    def Browser(self):
        directory = tkinter.filedialog.askdirectory(title='Python')
        if directory:
            self.entry.delete(0, tkinter.END)
            self.entry.insert(tkinter.END, directory)

    def Conv(self):
        n = 0
        t = self.tImage.get()
        f = self.fImage.get()
        path = self.entry.get()
        if path == '':
            tkinter.messagebox.showerror('Python tkinter', '请输入路径')
            return
        filenames = os.listdir(path)
        os.mkdir(path + '/' + t[-3:])
        for filename in filenames:
            if filename[-4:] == f:
                Image.open(path + '/' + filename).save(path + '/' + t[-3:] + '/' + filename[:-4] + t)
                n = n + 1
        self.status.set('成功转换%d张图片' % n)


window = Window()
window.MainLoop()