Tkinter python布局网格包位置
Tkinter python布局网格包位置
提问于 2020-08-01 17:55:43
有没有比我更有经验的人，请看一下这段代码，告诉我如何重构它。
代码构建于：tkinter gui layout using frames and grid
我对以下几点特别怀疑：
-grid和place，即是否可以仅使用网格在框架中居中放置小部件？
-global和我跟踪活动帧的方式--有没有更好的方法？
from tkinter import *
def set_ret_btn_vis(new_visibility):
if(new_visibility):
ret_btn.grid(row=1, column=2, padx=50)
else:
ret_btn.grid_forget()
def show_main_menu():
#populate the main frame with two action buttons
print("I am the Main Menu")
global active_frame
if(active_frame!=main_menu):
active_frame.grid_forget()
main_menu.grid(row=1,sticky="ew")
task1_btn.place(relx =0.2, rely=0.45)
task2_btn.place(relx =0.5, rely=0.45)
def show_task1_frame():
print("I am Task1")
global active_frame
active_frame = task1
main_menu.grid_forget()
task1.grid(row=1,sticky="ew")
def show_task2_frame():
print("I am Task2")
global active_frame
active_frame = task2
main_menu.grid_forget()
task2.grid(row=1,sticky="ew")
root = Tk()
root.title("IM-Tools")
root.geometry("{}x{}".format(400,350))
# creates all the frames
top_frame = Frame(root, bg="red", width=400,height=50)
main_menu = Frame(root,bg="#FFAAFF",width=400,height=250 )
task1 = Frame(root,bg="#00CCDD", width=400,height=250)
task2 = Frame(root,bg="#AA00C0", width=400,height=250)
bottom_frame = Frame(root, bg="yellow", width=400,height=50)
# stops frame from shrinking when widget is placed inside
top_frame.grid_propagate(0)
bottom_frame.grid_propagate(0)
# layout main containers
root.grid_rowconfigure(1, weight=1)
root.grid_columnconfigure(0, weight=1)
top_frame.grid(row=0)
main_menu.grid(row=1)
bottom_frame.grid(row=2)
# create all widgets used by the different frames
# top frame
ret_btn = Button(top_frame,text="Main Menu", width=10, command= lambda: [set_ret_btn_vis(False), show_main_menu()] )
# main frame
task1_btn = Button(main_menu, text="Action1", command= lambda: [ set_ret_btn_vis(True),show_task1_frame()] )
task2_btn = Button(main_menu, text="Action2", command= lambda: [ set_ret_btn_vis(True),show_task2_frame()] )
name_lbl = Label(bottom_frame, text="my name", bg='yellow')
name_lbl.place(relx=0.4, rely=0.45)
# keeps track of currently active frame
active_frame = main_menu
# first
show_main_menu()
root.mainloop()回答 1
Stack Overflow用户
发布于 2020-08-02 11:28:04
非常感谢@Atlas435，我相应地修改了代码-我希望这会对我之后的人有所帮助。
from tkinter import *
class IM_UI(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
# creates all the frames
self.top_frame = Frame(self.parent, bg="red", width=400,height=50)
self.main_menu = Frame(self.parent,bg="#FFAAFF",width=400,height=250 )
self.task1 = Frame(self.parent,bg="#00CCDD", width=400,height=250)
self.task2 = Frame(self.parent,bg="#AA00C0", width=400,height=250)
self.bottom_frame = Frame(self.parent, bg="yellow", width=400,height=50)
# stops frame from shrinking when widget is placed inside
self.top_frame.grid_propagate(0)
self.main_menu.grid_propagate(0)
self.bottom_frame.grid_propagate(0)
# layout main containers
self.top_frame.grid(row=0)
self.main_menu.grid(row=1)
self.bottom_frame.grid(row=2)
# make row one auto-extend / make column zero auto-extend
self.parent.grid_rowconfigure(1, weight=1)
self.parent.grid_columnconfigure(0, weight=1)
# bottom_frame has onw row / by saying ( 0, weight=1 ) it allows the row to grow with the size of the frame
self.bottom_frame.grid_rowconfigure(0,weight=1)
self.bottom_frame.grid_columnconfigure(0,weight=1)
# create all widgets used by the different frames
# top frame
self.ret_btn = Button(self.top_frame,text="Main Menu", width=10, command= lambda: [self.set_ret_btn_vis(False), self.show_main_menu()] )
# main frame
self.task1_btn = Button(self.main_menu, text="Action1", command= lambda: [ self.set_ret_btn_vis(True),self.show_task1_frame()] )
self.task2_btn = Button(self.main_menu, text="Action2", command= lambda: [ self.set_ret_btn_vis(True),self.show_task2_frame()] )
# configure the grid / rows of the main frame
# have to columns equally weighted and one row
self.main_menu.grid_columnconfigure(0, weight=1)
self.main_menu.grid_columnconfigure(1, weight=1)
self.main_menu.grid_rowconfigure(0,weight=1)
# with the sticky options the buttons expand
self.task1_btn.grid(column=0, row=0, columnspan=1)#, sticky="ew")
self.task2_btn.grid(column=1, row=0, columnspan=1)#, sticky="ew")
# bottom frame
self.name_lbl = Label(self.bottom_frame, text="my name", bg='yellow')
self.name_lbl.grid(column=0, columnspan=1, sticky="nsew")
# keeps track of currently active frame
self.active_frame = self.main_menu
def set_ret_btn_vis(self,new_visibility):
if(new_visibility):
self.ret_btn.grid(row=1, column=2, padx=50)
else:
self.ret_btn.grid_forget()
def show_main_menu(self):
#populate the main frame with two action buttons
print("I am the Main Menu")
self.active_frame.grid_forget()
self.main_menu.grid(row=1,sticky="nsew")
def show_task1_frame(self):
print("I am Task1")
self.main_menu.grid_forget()
self.task1.grid(row=1,sticky="ew")
#set the new active frame
self.active_frame = self.task1
def show_task2_frame(self):
print("I am Task2")
self.main_menu.grid_forget()
self.task2.grid(row=1,sticky="ew")
#set the new active frame
self.active_frame = self.task2
root = Tk()
root.title("IM-Tools")
root.geometry("{}x{}".format(400,350))
root.resizable(False,False)
my_UI = IM_UI(root)
root.mainloop()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/63203927
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