在单独的线程中运行 Tkinter 表单
我编写了一个简短的模块,可以传递图像并简单地创建一个 Tkinter 窗口并显示它.我遇到的问题是,即使我在单独的线程中实例化并调用显示图像的方法,主程序也不会继续,直到 Tkinter 窗口关闭.
I have written a short module that can be passed an image and simply creates a Tkinter window and displays it. The problem that I am having is that even when I instantiate and call the method that displays the image in a separate thread, the main program will not continue until the Tkinter window is closed.
这是我的模块:
import Image, ImageTk
import Tkinter
class Viewer(Tkinter.Tk):
def __init__(self,parent):
Tkinter.Tk.__init__(self,parent)
self.parent = parent
self.initialize()
def initialize(self):
self.grid()
def show(self,img):
self.to_display = ImageTk.PhotoImage(img)
self.label_image = Tkinter.Label(self,image=self.to_display)
self.label_image.grid(column = 0, row = 0, sticky = "NSEW")
self.mainloop()
它似乎工作正常,除非我从我的测试程序中调用它,如下所示,它似乎不允许我的测试程序继续,即使在不同的线程中启动.
It seems to work fine, except when I call it from my test program like the one below, it will not seem to allow my test program to continue, even when started in a different thread.
import Image
from viewer import Viewer
import threading
def showimage(im):
view = Viewer(None)
view.show(im)
if __name__ == "__main__":
im = Image.open("gaben.jpg")
t = threading.Thread(showimage(im))
t.start()
print "Program keeps going..."
我认为我的问题可能是我应该在模块本身内创建一个新线程,但我想尽量保持简单,因为我是 Python 新手.
I think that perhaps my problem is that I should be creating a new thread within the module itself, but I was wanting to just try and keep it simple, as I am new to Python.
无论如何,提前感谢您的任何帮助.
Anyway, thanks in advance for any assistance.
为了清楚起见,我只是想制作一个将在 Tkinter 窗口中显示图像的模块,以便我可以在任何时候想要显示图像时使用该模块.我遇到的问题是,任何时候程序使用这个模块,它都不能恢复,直到 Tkinter 窗口关闭.
edit: To clarity, I am just trying to make a module that will display an image in a Tkinter window, so that I can use this module any time I want to display an image. The problem that I am having is that any time a program uses this module, it cannot resume until the Tkinter window is closed.
从您的评论来看,您似乎根本不需要 GUI.只需将图像写入磁盘并调用外部查看器即可.
From your comments it sound's like you do not need a GUI at all. Just write the image to disk and call an external viewer.
在大多数系统上,应该可以使用如下方式启动默认查看器:
On most systems it should be possible to launch the default viewer using something like this:
import subprocess
subprocess.Popen("yourimage.png")