as a Python / tkinter beginner, I have kind of encountered a problem that I could not solve by myself. Any help of you would be greatly appreciated - thank you in advance!
I am trying to create a GUI with tkinter where the user can switch between different windows / frames by pressing a button. By reading through the already existing stack overflow questions, I have seen that many users suggest an object - oriented approach to a GUI. Therefore, I have tried a draft for this specific purpose by the user @Bryan Oakley - link to the original question: Switch between two frames in tkinter In this code, all pages that are to be seen and accessed by the user are defined as separate classes and 'stored' in the container frame. So whenever a specific frame should become visible, the function show_frame raises it above the others.
My question: I would like to assign individual static window sizes to the displayed frames StartPage, PageOne etc. For instance, PageOne is the frame where the user will work on and should thus be bigger than the StartPage that just functions as a menu. Nevertheless, when searching through the internet, I can only find the option how to make them all equally big, by saying app.geometry(' <entered_geometry>'). Sadly, this does not solve my problem.
I have already tried a lot, but, as I stated above, I am a beginner and still have to kind of wrap my head around tkinter with a OOP approach. I hope that I was able to explain the issue properly. Again, I would be very thankful if any of you could please help me as desperation has already begun to take over haha :)
try:
import tkinter as tk # python 3
from tkinter import font as tkfont # python 3
except ImportError:
import Tkinter as tk # python 2
import tkFont as tkfont # python 2
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(family='Helvetica', size=18, weight="bold", slant="italic")
# the container is where we'll stack a bunch of frames
# on top of each other, then the one we want visible
# will be raised above the others
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne, PageTwo):
page_name = F.__name__
frame = F(parent=container, controller=self)
self.frames[page_name] = frame
# put all of the pages in the same location;
# the one on the top of the stacking order
# will be the one that is visible.
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame("StartPage")
def show_frame(self, page_name):
'''Show a frame for the given page name'''
frame = self.frames[page_name]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is the start page", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self, text="Go to Page One",
command=lambda: controller.show_frame("PageOne"))
button2 = tk.Button(self, text="Go to Page Two",
command=lambda: controller.show_frame("PageTwo"))
button1.pack()
button2.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 2", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
