我正在使用Tkinter的"grid()"方法为我的Python程序设计GUI。
有没有办法让小部件随着主窗口进行缩放？
这里是一个简短的例子：
from Tkinter import *
master = Tk()
Label(master, text="This is a test").grid(row=0, column=0)
mytext1 = Text(master, width=30, height=5)
mytext1.grid(row=1, column=0)
mytext2 = Text(master, width=30, height=5)
mytext2.grid(row=3, column=0)
master.mainloop()
我希望实现当主窗口大小改变时，部件能够自动调整大小。（对于如此小的GUI而言，这不是问题，但当有很多部件时，这变得更加令人期望。）
非常感谢您的任何帮助！
你需要配置行/列为 weight，这样当你调整窗口大小时它们才能够自动扩展。此外，你还需要将小部件设为其单元格边缘的 sticky。不仅 frame 的行/列需要设置 weight，而且 frame 中的所有行和列都需要设置 weight，因此需要使用 for 循环。
from Tkinter import *
class MyFrame(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.grid(row=0, column=0, sticky=N+S+E+W)
#Give the grid, column of the frame weight...
Grid.rowconfigure(master, 0, weight=1)
Grid.columnconfigure(master, 0, weight=1)
self.create_widgets()
def create_widgets(self):
#Give the grid, column of each widget weight...
for rows in xrange(3):
Grid.rowconfigure(self, rows, weight=1)
for columns in xrange(1):
Grid.columnconfigure(self, columns, weight=1)
self.label = Label(self, text="This is a test")
self.label.grid(row=0, column=0, sticky=N+S+E+W)
self.mytext1 = Text(self, width=30, height=5)
self.mytext1.grid(row=1, column=0, sticky=N+S+E+W)
self.mytext2 = Text(self, width=30, height=5)
self.mytext2.grid(row=2, column=0, sticky=N+S+E+W)
root = Tk()
app = MyFrame(root)
root.mainloop()
框架长这样：from Tkinter import *
#Sets up a frame
class MyApplication(Frame):
#When a class is initialized, this is called as per any class
def __init__(self, master):
#Similar to saying MyFrame = Frame(master)
Frame.__init__(self, master)
#Puts the frame on a grid. If you had two frames on one window, you would do the row, column keywords (or not...)
self.grid()
#Function to put the widgets on the frame. Can have any name!
self.create_widgets()
def create_widgets(self):
label = Label(self, text='Hello World!')
label.grid()
button = Button(self, text='Press Me!', command=self.hello)
button.grid()
def hello(self):
print "Hello World!"
root = Tk()
app = MyApplication(root)
root.mainloop()
class IntroScreen(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.grid()
self.title('Intro Screen')
self.create_widgets()
self.focus_force()
def create_widgets(self):
label = Label(self, text='Hello World!')
label.grid()
button = Button(self, text='Open Window', command=self.newWindow)
button.grid()
def newWindow(self):
self.toplevel = InfoWindow()
#Like the frame, or any widget, this inherited from the parent widget
class InfoWindow(Toplevel):
def __init__(self):
Toplevel.__init__(self)
self.grid()
self.create_widgets()
self.focus_force()
def create_widgets(self):
label = Label(self, text='This is a window!')
label.grid()
root = Tk()
app = IntroScreen(root)
root.mainloop()
正如您所看到的，这种功能的实现如果没有类会更加困难。如果您打算深入了解Tkinter强大的功能，请在stackoverflow上寻找更多答案（我推荐Bryan Oakley的众多且丰富的回答），并在网上进行一些研究！
PS：这里是一个很好的起点：在tkinter中在两个框架之间切换
这里是没有使用类的相同内容。随着程序规模的增大，使用类更加清晰明了。请注意，我将标签的权重设置为0，这可以防止其扩展。您不必这样做，因为它是默认选项。这只是为了让您知道您可以做什么。
有关网格布局管理器的更多详细信息：http://www.tkdocs.com/tutorial/grid.html
from Tkinter import *
master = Tk()
Label(master, text="This is a test").grid(row=0, column=0)
mytext1 = Text(master, width=30,height=5)
mytext1.grid(row=1, column=0, sticky="nsew")
mytext2 = Text(master, width=30,height=5)
mytext2.grid(row=2, column=0, sticky="nsew")
master.columnconfigure(0, weight=1)
master.rowconfigure(0, weight=0) # not needed, this is the default behavior
master.rowconfigure(1, weight=1)
master.rowconfigure(2, weight=1)
master.mainloop()