I am writing a GUI code that opens frame using Tkinter. I referred various websites. Now while testing I am facing problem. For example:
In 1st frame, I select MainController button.
in 2nd frame press MC_CONFIG button.
in 3rd frame I set XML PATH then clicked MC SYSTEM.xml button
If I go to Back to Home button and follow the same procedure, MC_CONFIG button gets disabled (i.e I cannot go further).
If I comment(delete) this line(126)
tk.Frame.__init__(self)
in method def nacxml(self): of class MC_CONFIG, it is working perfectly.
The below one is just part of my main code bu facing problem here.
Please guide me.
import Tkinter as tk
import xml.dom.minidom
from Tkinter import *
import tkMessageBox
from array import *
import tkFileDialog
import os
LARGE_FONT= ("Verdana", 12)
class SeaofBTCapp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.wm_title(self, "Switch Installer window")
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):
for F in (StartPage, MainController,xmlpath,MC_CONFIG):
frame = F(container,self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.modules_label = ['MAINCONTROLLER']
self.modules_function = [MainController]
self.modules_label_index = len(self.modules_label)
self.modules_function_index = len(self.modules_function)
print("self.modules_label_index = %s" %self.modules_label_index)
label = Label(self, text="SWITCH INSTALLER", font=LARGE_FONT)
label.pack(pady=10,padx=10)
#button = Button(self, text="Visit Page 1",
button3 = Button(self, text="SELECT",
command=lambda: controller.show_frame(MainController))
button3.pack()
label3 = Label(self, text="MainController", font = LARGE_FONT)
label3.place(x= 50, y=100+10)
button8 = Button(self, text="Quit", command=self.quit)
button8.pack()
class xmlpath(tk.Frame):
#xfilename="+++"
def __init__(self, parent, controller):
self.xfilename="srinivasan"
tk.Frame.__init__(self, parent)
label = Label(self, text="Page One!!!", font=LARGE_FONT)
label.pack(pady=10,padx=10)
button1 = Button(self, text="Back to Home",
command=lambda: controller.show_frame(StartPage))
button1.pack()
button1 = Button(self, text="XML PATH",
command=self.newxmlpath)
button1.pack()
def newxmlpath(self,*args):
# ObjNAC= NacHandler()
self.filename = tkFileDialog.askopenfilename()
print(self.filename)
#ObjNAC.temp_method(self,self.filename)
return self.filename
class MainController(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = Label(self, text="|--Frame1 MainController --|", font = LARGE_FONT)
label.pack(pady=10,padx=10)
mc_button1 = Button(self, text="MC_CONFIG", command = lambda: controller.show_frame(MC_CONFIG))
mc_button1.pack()
mc_button2 = Button(self, text="MENU HOME", command = lambda: controller.show_frame(StartPage))
mc_button2.pack()
self.pack (fill = BOTH, expand = 1)
class MC_CONFIG(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
print "Inside MC_CONFIG"
self.database = []
# set root as parent
self.parent = parent
label1 = Label(self, text="|------------Frame2--MainController---------------|", font=LARGE_FONT)
label1.pack(pady = 10,padx = 10)
label2 = Label(self, text="Edit SYSTEM.xml File", font=LARGE_FONT)
label2.pack(pady = 10,padx = 10)
button1 = Button(self, text="XML PATH",
command=self.newxmlpath)
button1.pack(pady = 10,padx = 10)
button2 = Button(self, text = "MC SYSTEM.xml", command = self.nacxml)
button2.pack(pady = 10,padx = 10)
button3 = Button(self, text="Back to Home",
command=lambda: controller.show_frame(StartPage))
button3.pack(pady = 10,padx = 10)
def newxmlpath(self, *args):
self.filename = tkFileDialog.askopenfilename()
print(self.filename)
return self.filename
def nacxml(self):
tk.Frame.__init__(self)
print "===Inside Nacxml1==="
app = SeaofBTCapp()
app.geometry ("640x480+300+300")
app.mainloop()
The problem is this:
def nacxml(self):
tk.Frame.__init__(self)
You should only ever call the superclass constructor from within the constructor of the subclass. Doing so anywhere else will certainly not do whatever you think it's doing.
Finally code is working as intended
1.Deleted tk.Frame.__init__(self) as indicated by Bryan Oakley
def nacxml(self):
tk.Frame.__init__(self)
2.Controller is not intialized in self.But it is present in def __init__(self, parent, controller):.Hence added
self.controller = controller in MC_CONFIG class
class MC_CONFIG(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
print "Inside MC_CONFIG"
So can be used in below method as self.controller.show_frame(StartPage)
def nacxml(self):
tk.Frame.__init__(self)
print "===Inside Nacxml1==="
# xml read,edit,widget code will be added here
self.controller.show_frame(StartPage)
Related
This is a part of my actual program. I am trying to write a code that will create few Buttons on loop.
My problem is I am passing a value to a tkinter class but it is not printing the right value instead just prints a ".".
I want to pass "chap" from class PageOne to "class ChapterOne" in the below code it isn't working. I don't have much experience in classes. A help here will be much appreciated.
import tkinter as tk
from PIL import ImageTk, Image
from os import listdir
import yaml
LARGE_FONT = ("Verdana", 12)
grey = "#808080"
offwhite = "#e3e3e3"
hintwa = False
x = ''
class MainBot(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
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 page in (StartPage, PageOne, ChapterOne):
frame = page(container, self)
print (container)
self.frames[page] = frame
frame.grid(row = 0, column = 0, sticky = 'nsew')
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
def yaml_loader(self, filepath):
with open (filepath, "r") as fileread:
self.data = yaml.load(fileread)
return self.data
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, background = offwhite, text= "Start Page", font = LARGE_FONT)
label.pack(pady=10, padx=10)
button_start = tk.Button(self, text = 'NEXT', font = ("default", 15, "bold"), bg='orange', fg = 'white', border=2, height = 2, width = 8, command=lambda: controller.show_frame(PageOne))
button_start.pack()
button_start.place(x=650, y=500)
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
index_label = tk.Label(self, text = "~~~~~INDEX~~~~~", font = ("Comicsans", 24, "bold"), background = offwhite)
index_label.pack()
index_label.place(x=200, y=50)
onlyfiles = ['chapter-1.yaml']
for yfiles in onlyfiles:
chap = (yfiles.split("."))[0].split("-")[1]
print (chap)
button_index_one = tk.Button(self, text='Chapter ' + str(chap), font=("default", 14, "bold"), bg='white',
fg='black', border=1, height=2, width=12,
command=lambda: controller.show_frame(ChapterOne(self, chap)))
button_index_one.pack(pady=30, padx=0)
class ChapterOne(tk.Frame):
def __init__(self, parent, chap):
tk.Frame.__init__(self, parent)
print (chap)
app = MainBot()
app.geometry("800x600")
app.mainloop()
Currently the program opens up an empty blank window when trying to import images as buttons. Without trying to import the image as buttons, the code works fine however. Can anyone help fix this code up or point me in the right direction?
from tkinter import*
root = Tk()
class app(Tk):
def __init__(self, *args, **kwargs):
Tk.__init__(self, *args, **kwargs)
container = 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, SignIn, SignUp):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class StartPage(Frame):
def __init__(self, parent, controller):
Frame.__init__(self, parent)
label = Label(self, text="Start Page")
label.pack(pady=10,padx=10)
img1 = PhotoImage(file="signinbtn.png")
button = Button(self, image=img1,
command=lambda: controller.show_frame(SignIn))
button.pack()
img2 = PhotoImage(file="signupbtn.png")
button2 = Button(self, image=img2, text="Sign Up",
command=lambda: controller.show_frame(SignUp))
button2.pack()
class SignIn(Frame):
def __init__(self, parent, controller):
Frame.__init__(self, parent)
label = Label(self, text="Sign In")
label.pack(pady=10,padx=10)
button1 = Button(self, text="Back to Start Page",
command=lambda: controller.show_frame(StartPage))
button1.pack()
class SignUp(Frame):
def __init__(self, parent, controller):
Frame.__init__(self, parent)
label = Label(self, text="Sign Up")
label.pack(pady=10,padx=10)
button1 = Button(self, text="Back to Start Page",
command=lambda: controller.show_frame(StartPage))
button1.pack()
root.mainloop()
The empty window is created by the second code line:
root = Tk()
Apart from this line you have just class definitions. As you never instantiate any of the classes no code from any class is run.
I am quite new to python and tkinter and I was trying to open iamges to use them as icons on my program, so I found I have to use tk.Toplevel instead of tk.Tk. However, when I do this, the application opens two windows,the one where everything is programmed and a blank one.
Here is the full code in case anyone could help:
import tkinter as tk
from tkinter import ttk
from tkinter import PhotoImage
from PIL import Image, ImageTk
Large_Font = ("Times", 20)
class RobProject(tk.Toplevel):
def __init__(self):
tk.Toplevel.__init__(self)
tk.Tk.wm_title(self, "Com-Bot Control")
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 (MenuPage, PageOne, PageTwo, PageThree):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="NEWS")
self.show_frame(MenuPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class MenuPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
label = tk.Label(self, text = "Menú", font=Large_Font)
label.pack(pady=10, padx=10)
RCB = ttk.Button(self, text="Control Remoto",
command= lambda: controller.show_frame(PageOne))
RCB.pack()
EOB = ttk.Button(self, text="EvitaObstáculos",
command= lambda: controller.show_frame(PageTwo))
EOB.pack()
SLB = ttk.Button(self, text="Siguelíneas",
command= lambda: controller.show_frame(PageThree))
SLB.pack()
img = Image.open("play-button.png")
photo = ImageTk.PhotoImage(img)
Show_Im = tk.Button(self, image=photo)
Show_Im.image = photo
Show_Im.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Control Remoto", font=Large_Font)
label.pack(pady=10, padx=10)
Back_B1 = ttk.Button(self, text="Atrás",
command= lambda: controller.show_frame(MenuPage))
Back_B1.pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Evitaobstáculos", font=Large_Font)
label.pack(pady=10, padx=10)
Back_B2 = ttk.Button(self, text="Atrás",
command= lambda: controller.show_frame(MenuPage))
Back_B2.pack()
class PageThree(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text = "Siguelíneas", font=Large_Font)
label.pack(pady=10, padx=10)
Back_B3 = ttk.Button(self, text="Atrás",
command= lambda: controller.show_frame(MenuPage))
Back_B3.pack()
app = RobProject()
app.mainloop()
Thank you in advance!
You do not need Topelevel() to use images.
Not sure where you got that info but it is not accurate.
Toplevel() is specifically to create new windows outside of the root window in tkinter.
What is happening is when you call tk.Toplevel() tkinter is creating an instance of Tk() in order to run Toplevel(). This is where the blank screen is coming from. The blank screen is actually the root window without anything in it.
To fix your problem Change:
class RobProject(tk.Toplevel):
def __init__(self):
tk.Toplevel.__init__(self)
To:
class RobProject(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
so i am doing some learning with modules. i am decent with tkinter after using it for 5 months or so. i can get this to work if i put my functions inside my main file. i am separating them into separate modules so i can learn how to work with modules better. so this question is more for knowledge.
I am going to have 3 files total, my main loop (example_gui.py) , my pythonic functions (example_funcs.py) , my GUI functions (more_example_funcs.py)... you can see that my issue is with using "get_text()" inside more_example_funcs.py its obvious why it doesnt work in this case. the variable is not defined inside this .py file. how would i make this work? I was told it is better way to code by having the functions inside another file(modules).
With a full scale app using Tkinter , i am going to have bunch of functions connected to entries an such that are going to be defined in the example_gui.py it would be much easier if i could put the functions for those inside more_example_funcs.py just like my example below
example_funcs.py
from Tkinter import *
import Tkinter as tk
def center(toplevel):
toplevel.update_idletasks()
w = toplevel.winfo_screenwidth()
h = toplevel.winfo_screenheight()
size = tuple(int(_) for _ in toplevel.geometry().split('+')[0].split('x'))
x = w/2 - size[0]/2
y = h/2 - size[1]/2
toplevel.geometry("%dx%d+%d+%d" % (size + (x, y)))
def popupmsg(msg):
popup = tk.Toplevel()
popup.title("Information Dialog")
label = Label(popup, text = msg)
label.pack(side="top", pady=10)
button = Button(popup, text = "OK", command = popup.destroy)
button.pack()
popup.grab_set()
center(popup)
popup.mainloop()
more_example_funcs.py
from Tkinter import *
import Tkinter as tk
def get_text():
print entry_one_var.get()
example_gui.py
from Tkinter import *
import Tkinter as tk
import example_funcs as EF
import more_example_funcs as MEF
class start(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
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 = {}
tk.Tk.title(self, "app name")
menubar = tk.Menu(container)
tk.Tk.config(self, menu=menubar)
fileMenu = tk.Menu(menubar, tearoff=0)
menubar.add_cascade(label="File", menu=fileMenu)
fileMenu.add_command(label="Exit", command=quit)
for F in (Page_one, Page_two, Page_three):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(Page_one)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class Page_one(tk.Frame):
def __init__(self, parent, controller, *args, **kwargs):
self.controller = controller
Frame.__init__(self, parent, *args, **kwargs)
self.labels_one()
self.buttons_one()
self.entries_one()
def labels_one(self):
label1 = Label(self, text="Welcome to page one")
label1.grid()
def buttons_one(self):
button_one = Button(self, text="go to page two", command=lambda:self.controller.show_frame(Page_two))
window_one_button = Button(self, text="open popup window", command=lambda:EF.popupmsg("New window 1"))
text_one_button = Button(self, text="print entered text", command=MEF.get_text)
button_one.grid()
window_one_button.grid()
text_one_button.grid()
def entries_one(self):
entry_one_var=StringVar()
entry_one = Entry(self, textvariable= entry_one_var)
entry_one.grid()
class Page_two(tk.Frame):
def __init__(self, parent, controller, *args, **kwargs):
self.controller = controller
Frame.__init__(self, parent, *args, **kwargs)
self.labels_two()
self.buttons_two()
def labels_two(self):
label2 = Label(self, text="Welcome to page two")
label2.grid()
def buttons_two(self):
button_two = Button(self, text="go to page three", command=lambda:self.controller.show_frame(Page_three))
window_two_button = Button(self, text="open popup window", command=lambda:EF.popupmsg("New window 2"))
button_two.grid()
window_two_button.grid()
class Page_three(tk.Frame):
def __init__(self, parent, controller, *args, **kwargs):
self.controller = controller
Frame.__init__(self, parent, *args, **kwargs)
self.labels_three()
self.buttons_three()
def labels_three(self):
label3 = Label(self, text="Welcome to page three")
label3.grid()
def buttons_three(self):
button_three = Button(self, text="go to page one", command=lambda:self.controller.show_frame(Page_one))
window_three_button = Button(self, text="open popup window", command=lambda:EF.popupmsg("New window 3"))
button_three.grid()
window_three_button.grid()
app = start()
EF.center(app)
app.mainloop()
Make your get_text function take arguments so you can call it on any variable later.
more_example_funcs.py
from Tkinter import *
import Tkinter as tk
def get_text(var):
print var.get()
Also, make entry_one_var in Page_one a class variable using the self keyword (self.entry_one_var) since you'll need it in more than one method, then pass self.entry_one_var as an argument when you call get_text.
This is how the Page_one class will look like:
class Page_one(tk.Frame):
def __init__(self, parent, controller, *args, **kwargs):
self.controller = controller
Frame.__init__(self, parent, *args, **kwargs)
self.labels_one()
self.buttons_one()
self.entries_one()
def labels_one(self):
label1 = Label(self, text="Welcome to page one")
label1.grid()
def buttons_one(self):
button_one = Button(self, text="go to page two", command=lambda:self.controller.show_frame(Page_two))
window_one_button = Button(self, text="open popup window", command=lambda:EF.popupmsg("New window 1"))
text_one_button = Button(self, text="print entered text", command=lambda: MEF.get_text(self.entry_one_var))##
button_one.grid()
window_one_button.grid()
text_one_button.grid()
def entries_one(self):
self.entry_one_var=StringVar() #make entry_one_var class instance variable
entry_one = Entry(self, textvariable= self.entry_one_var) ##
entry_one.grid()
I hope it helps.
I'm attempting to write a program in tkinter where the user clicks on a button with their name and a verification page shows it to them. The problem I'm having is that the variable is either resetting or I'm accessing it wrong:
import tkinter as tk
from tkinter import *
from tkinter import ttk
LARGE_FONT = ("Times New Roman", 12)
NORM_FONT = ("Times New Roman", 10)
root = Tk()
root.withdraw()
class DIS(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.iconbitmap(self, default="")
tk.Tk.wm_title(self, "program")
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, contactQues, nameVerify):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
button2 = ttk.Button(self, text = "Name Select",
command=lambda: controller.show_frame(contactQues))
button2.pack()
class contactQues(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
global name
name = StringVar()
label1 = tk.Label(self, text = "Select Your Name", font = LARGE_FONT)
label1.pack(pady=10, padx=10)
button2 = ttk.Button(self, text = "Bojangles", command = self.bojangles)
button2.pack(pady=5)
def bojangles(self):
name.set("Mr. Bojangles")
self.controller.show_frame(nameVerify)
#
#Many other names to select
#
class nameVerify(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
namename = name.get()
label5 = tk.Label(self, text = "Your Name:", font = LARGE_FONT)
label5.pack(pady=10, padx=10)
labelcontact = tk.Label(self, text = namename, font = NORM_FONT)
labelcontact.pack()
app = DIS()
app.mainloop()
So, in essence, what I want to happen is:
- Program runs and user presses "Name select", user selects their name, and the final page shows their selection.
I've tried messing with globals, textvariables for the labelcontact label, StringVar(), etc. and can't seem to peg this one down.
Is there a better way to do this? Or am I doing something inherently wrong?
Thank you for any help.
I suggest making name an attribute of the DIS class. Then your StartPage and nameVerify instances can access it via their controller attributes. If you want labelcontact to update automatically whenever name does, use the textvariable attribute.
Additionally, you need to delete your root = Tk() and root.withdraw() lines. I don't know why, but as long as they're there, the labelcontact Label won't properly update. They don't appear to do anything in any case - hopefully they aren't crucial to your actual code.
import tkinter as tk
from tkinter import *
from tkinter import ttk
LARGE_FONT = ("Times New Roman", 12)
NORM_FONT = ("Times New Roman", 10)
class DIS(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
tk.Tk.iconbitmap(self, default="")
tk.Tk.wm_title(self, "program")
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.name = StringVar()
self.frames = {}
for F in (StartPage, contactQues, nameVerify):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
button2 = ttk.Button(self, text = "Name Select",
command=lambda: controller.show_frame(contactQues))
button2.pack()
class contactQues(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label1 = tk.Label(self, text = "Select Your Name", font = LARGE_FONT)
label1.pack(pady=10, padx=10)
button2 = ttk.Button(self, text = "Bojangles", command = self.bojangles)
button2.pack(pady=5)
def bojangles(self):
self.controller.name.set("Mr. Bojangles")
self.controller.show_frame(nameVerify)
#
#Many other names to select
#
class nameVerify(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label5 = tk.Label(self, text = "Your Name:", font = LARGE_FONT)
label5.pack(pady=10, padx=10)
labelcontact = tk.Label(self, textvariable = self.controller.name, font = NORM_FONT)
labelcontact.pack()
app = DIS()
app.mainloop()