"""
##################################################################
a reusable form class, used by getfilegui (and others)
##################################################################
"""

from tkinter import *
entrysize = 40

class Form: # add non-modal form box
def init(self, labels, parent=None): # pass field labels list
labelsize = max(len(x) for x in labels) + 2
box = Frame(parent) # box has rows, buttons
box.pack(expand=YES, fill=X) # rows has row frames
rows = Frame(box, bd=2, relief=GROOVE) # go=button or return key
rows.pack(side=TOP, expand=YES, fill=X) # runs onSubmit method
self.content = {}
for label in labels:
row = Frame(rows)
row.pack(fill=X)
Label(row, text=label, width=labelsize).pack(side=LEFT)
entry = Entry(row, width=entrysize)
entry.pack(side=RIGHT, expand=YES, fill=X)
self.content[label] = entry
Button(box, text='Cancel', command=self.onCancel).pack(side=RIGHT)
Button(box, text='Submit', command=self.onSubmit).pack(side=RIGHT)
box.master.bind('<Return>', (lambda event: self.onSubmit()))

def onSubmit(self):                                      # override this
    for key in self.content:                             # user inputs in
        print(key, '\t=>\t', self.content[key].get())    # self.content[k]

def onCancel(self):                                      # override if need
    Tk().quit()                                          # default is exit

class DynamicForm(Form):
def init(self, labels=None):
labels = input('Enter field names: ').split()
Form.init(self, labels)
def onSubmit(self):
print('Field values...')
Form.onSubmit(self)
self.onCancel()

if name == 'main':
import sys
if len(sys.argv) == 1:
Form(['Name', 'Age', 'Job']) # precoded fields, stay after submit
else:
DynamicForm() # input fields, go away after submit
mainloop()

image.png

使用

from form import Form
from tkinter import Tk, mainloop
from tkinter.messagebox import showinfo
import getfile, os

class GetfileForm(Form):
def init(self, oneshot=False):
root = Tk()
root.title('getfilegui')
labels = ['Server Name', 'Port Number', 'File Name', 'Local Dir?']
Form.init(self, labels, root)
self.oneshot = oneshot

def onSubmit(self):
    Form.onSubmit(self)
    localdir   = self.content['Local Dir?'].get()
    portnumber = self.content['Port Number'].get()
    servername = self.content['Server Name'].get()
    filename   = self.content['File Name'].get()
    if localdir:
        os.chdir(localdir)
    portnumber = int(portnumber)
    getfile.client(servername, portnumber, filename)
    showinfo('getfilegui', 'Download complete')
    if self.oneshot: Tk().quit()  # else stay in last localdir

if name == 'main':
GetfileForm()
mainloop()