python利用tkinter实现图片格式转换的示例

代码

import os
from PIL import Image
import tkinter
import tkinter.filedialog
import tkinter.messagebox

class Window():
 def __init__(self):
   self.root = root = tkinter.Tk()
   self.menu = tkinter.Menu(root)
   self.submenu = tkinter.Menu(self.menu, tearoff=0)
   self.submenu.add_command(label='作者:君莫笑')
   root.config(menu=self.submenu)
   self.Image = tkinter.StringVar()
   self.Image.set('.bmp')
   self.mstatus = tkinter.IntVar()
   self.fstatus = tkinter.IntVar()
   self.mstatus.set(0)
   self.fstatus.set(0)
   self.status = tkinter.StringVar()
   self.label = tkinter.Label(root, text='输入百分比')
   self.label.place(x=5, y=5)
   self.entryNew = tkinter.Entry(root)
   self.entryNew.place(x=70, y=5)
   self.checkM = tkinter.Checkbutton(self.root, text='批量转换', command=self.OnCheckM, variable=self.mstatus,
                    onvalue=1, offvalue=0)
   self.checkM.place(x=5, y=30)
   self.label = tkinter.Label(root, text='选择文件')
   self.label.place(x=5, y=55)
   self.entryFile = tkinter.Entry(root)
   self.entryFile.place(x=70, y=55)
   self.BrowserFileButton = tkinter.Button(root, text='浏览', command=self.BrowserFile)
   self.BrowserFileButton.place(x=220, y=55)
   self.label = tkinter.Label(root, text='选择目录')
   self.label.place(x=5, y=90)
   self.entryDir = tkinter.Entry(root, state=tkinter.DISABLED)
   self.entryDir.place(x=70, y=90)
   self.BrowserDirButton = tkinter.Button(root, text='浏览', command=self.BrowserDir, state=tkinter.DISABLED)
   self.BrowserDirButton.place(x=220, y=90)

self.checkF = tkinter.Checkbutton(root, text='改变文件格式', onvalue=1, offvalue=0, variable=self.fstatus,
                    command=self.OnCheckF)
   self.checkF.place(x=5, y=120)

frame = tkinter.Frame(root, )
   frame.place(x=10, y=150)
   self.rBmp = tkinter.Radiobutton(frame, variable=self.Image, value='.bmp', text='BMP', state=tkinter.DISABLED)
   self.rBmp.pack(anchor='w')
   self.rJpg = tkinter.Radiobutton(frame, variable=self.Image, value='.jpg', text='JPG', state=tkinter.DISABLED)
   self.rJpg.pack(anchor='w')
   self.rPng = tkinter.Radiobutton(frame, variable=self.Image, value='.png', text='PNG', state=tkinter.DISABLED)
   self.rPng.pack(anchor='w')
   self.rGif = tkinter.Radiobutton(frame, variable=self.Image, value='.gif', text='GIF', state=tkinter.DISABLED)
   self.rGif.pack(anchor='w')
   self.ButtonCov = tkinter.Button(root, text='转换格式', command=self.Conv, )
   self.ButtonCov.place(x=120, y=180)
   self.statusLabel = tkinter.Label(root, textvariable=self.status, fg='red')
   self.statusLabel.place(x=80, y=220)

def OnCheckM(self):
   if not self.mstatus.get():
     self.entryDir.config(state=tkinter.DISABLED)
     self.entryFile.config(state=tkinter.NORMAL)
     self.BrowserFileButton.config(state=tkinter.NORMAL)
     self.BrowserDirButton.config(state=tkinter.DISABLED)
   else:
     self.entryDir.config(state=tkinter.NORMAL)
     self.entryFile.config(state=tkinter.DISABLED)
     self.BrowserFileButton.config(state=tkinter.DISABLED)
     self.BrowserDirButton.config(state=tkinter.NORMAL)

def OnCheckF(self):
   if not self.fstatus.get():
     self.rBmp.config(state=tkinter.DISABLED)
     self.rPng.config(state=tkinter.DISABLED)
     self.rJpg.config(state=tkinter.DISABLED)
     self.rGif.config(state=tkinter.DISABLED)
   else:
     self.rBmp.config(state=tkinter.NORMAL)
     self.rPng.config(state=tkinter.NORMAL)
     self.rJpg.config(state=tkinter.NORMAL)
     self.rGif.config(state=tkinter.NORMAL)

def BrowserFile(self):
   file = tkinter.filedialog.askopenfilename(title='Python player',
                        filetypes=[('JPG', '*.jpg'), ('BMP', '*.bmp'), ('GIF', '*.gif'),
                              ('PNG', '*.png')])
   if file:
     self.entryFile.delete(0, tkinter.END)
     self.entryFile.insert(tkinter.END, file)

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

def make(self, file, format=None):
   im = Image.open(file)
   mode = im.mode
   if mode not in ('L', 'RGB'):
     im = im.convert('RGB')
   width, height = im.size
   s = self.entryNew.get()
   if s == '':
     tkinter.messagebox.showerror('出错啦', '请输入百分比')
     return
   else:
     n = int(s)
   nwidth = int(width * n / 100)
   nheight = int(height * n / 100)
   thumb = im.resize((nwidth, nheight), Image.ANTIALIAS)
   if format:
     thumb.save(file[:(len(file) - 4)] + '_thumb' + format)
   else:
     thumb.save(file[:(len(file) - 4)] + '_thumb' + file[-4:])

def Conv(self):
   n = 0
   if self.mstatus.get():
     path = self.entryDir.get()
     if path == "":
       tkinter.messagebox.showerror('出错啦', '请选择路径')
       return
     filenames = os.listdir(path)
     if self.fstatus.get():
       f = self.Image.get()
       print(f)
       for filename in filenames:
         if filename[-3:] in ('bmp', 'jpg', 'gif', 'png'):
           self.make(path + '/' + filename, f)
           n += 1
     else:
       for filename in filenames:
         if filename[-3:] in ('bmp', 'jpg', 'gif', 'png'):
           self.make(path + '/' + filename)
           n += 1
   else:
     file = self.entryFile.get()
     if file == '':
       tkinter.messagebox.showerror('出错啦', '请选择文件')
       return
     if self.fstatus.get():
       f = self.Image.get()
       self.make(file, f)
       n += 1
     else:
       self.make(file)
       n += 1
   self.status.set('成功转换 ％d 张图片' ％ n)

def mainloop(self):
   self.root.minsize(280, 270)
   self.root.maxsize(280, 250)
   self.root.title('图片转换')
   self.root.mainloop()

if __name__ == "__main__":
 window = Window()
 window.mainloop()

运行效果：

来源：https://www.cnblogs.com/manbaout/p/13232404.html