如何在一个窗口中打开多个 Tkinter 窗口

Question

我有两个或多个 python Tkinter 文件。每个文件都打开一个窗口，如何在一个主窗口中运行所有 Tkinter 窗口功能。

例如：我有两个文件，一个是 usbcam.py，它将打开 USB 摄像头并提供视频流，另一个是 ipcam.py，它打开 IP 摄像头并提供实时流。这两个文件分两部分打开windows 如何让它在一个窗口中工作

usbcam.py

import cv2
import PIL.Image
import PIL.ImageTk
import Tkinter as tk


def update_image(image_label, cv_capture):
    cv_image = cv_capture.read()[1]
    cv_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2RGB)
    pil_image = PIL.Image.fromarray(cv_image)
    pil_image.save('image3.jpg')
    tk_image = PIL.ImageTk.PhotoImage(image=pil_image)
    image_label.configure(image=tk_image)
    image_label._image_cache = tk_image  # avoid garbage collection
    root.update()


def update_all(root, image_label, cv_capture):
    if root.quit_flag:
        root.destroy()  # this avoids the update event being in limbo
    else:
        update_image(image_label, cv_capture)
        root.after(10, func=lambda: update_all(root, image_label, cv_capture))


if __name__ == '__main__':
    cv_capture = cv2.VideoCapture()
    cv_capture.open(0)  # have to use whatever your camera id actually is
    root = tk.Tk()
    setattr(root, 'quit_flag', False)
    def set_quit_flag():
        root.quit_flag = True
    root.protocol('WM_DELETE_WINDOW', set_quit_flag)  # avoid errors on exit
    image_label = tk.Label(master=root)  # the video will go here
    image_label.pack()
    root.after(0, func=lambda: update_all(root, image_label, cv_capture))
    root.mainloop()

ipcam.py

import cv2
import numpy as np
import PIL.Image
import PIL.ImageTk
import Tkinter as tk
import urllib

stream = urllib.urlopen("http://192.168.2.195:80/capture/scapture").read()
bytes_ = ''


def update_image(image_label):
    global bytes_
    bytes_ += stream.read(1024)
    a = bytes_.find('\xff\xd8')
    b = bytes_.find('\xff\xd9')
    if (a != -1) and (b != -1):
        jpg = bytes_[a:b+2]
        bytes_ = bytes_[b+2:]
        cv_image = cv2.imdecode(np.fromstring(jpg, dtype=np.uint8),
                                cv2.CV_LOAD_IMAGE_COLOR)
        cv_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2RGB)
        pil_image = PIL.Image.fromarray(cv_image)
        tk_image = PIL.ImageTk.PhotoImage(image=pil_image)
        image_label.configure(image=tk_image)
        image_label._image_cache = tk_image  # avoid garbage collection
        root.update()


def update_all(root, image_label):

    if root.quit_flag:
        print "coming if"
        root.destroy()  # this avoids the update event being in limbo
    else:
        print "coming else"
        update_image(image_label)
        root.after(1, func=lambda: update_all(root, image_label))
def timer(interval = 100):
    root.after(0, func=lambda: update_all(root, image_label))
  #.................................................................................................
    root.after(interval, timer)

if __name__ == '__main__':
    root = tk.Tk()
    setattr(root, 'quit_flag', False)
    def set_quit_flag():
        root.quit_flag = True
    root.protocol('WM_DELETE_WINDOW', set_quit_flag)
    image_label = tk.Label(master=root)  # label for the video frame
    image_label.pack()
    root.after(2, func=lambda: update_all(root, image_label))
    # timer()
    root.mainloop()

Answer 1

您需要指定一个脚本作为主脚本，在该脚本中您可以import 另一个。下面是一个使用 Frame 小部件的简单子类执行此操作的示例：

主脚本 (tkA.py)：

from Tkinter import *
from tkB import Right # bring in the class Right from secondary script


class Left(Frame):
    '''just a frame widget with a white background'''
    def __init__(self, parent):
        Frame.__init__(self, parent, width=200, height=200)
        self.config(bg='white')

if __name__ == "__main__":
    # if this script is run, make an instance of the left frame from here
    # and right right frame from tkB
    root = Tk()
    Left(root).pack(side=LEFT) # instance of Left from this script
    Right(root).pack(side=RIGHT) # instance of Right from secondary script
    root.mainloop()

辅助脚本（tkB.py）：

from Tkinter import *


class Right(Frame):
    '''just a frame widget with a black background'''
    def __init__(self, parent):
        Frame.__init__(self, parent, width=200, height=200)
        self.config(bg='black')

if __name__ == "__main__":
    # if this script is run, just do this:
    root = Tk()
    Right(root).pack()
    root.mainloop()

希望对您有所帮助。

Answer 2

首先，您需要将其包含在顶部。所以在 ipcam.py 的顶部写 'import usbcam' （不带引号）。