Skip to main content

Tkinter Notebook tab header background ERROR

I'm trying to change the background colour of tab headers and it works perfectly when I run the app for the first time however when I click on other menu buttons and turn back to page where the tabs are it doesn't even show the tabs! I can only see an empty canvas! How can I fix the problem? Can anyone help me please? Thanks in advance for your help

def ch_fr():
    frame_ch = Frame(screen)
    frame_ch.place(relx=0, rely=0, relwidth=1, relheight=1)
    WIDTH, HEIGTH = 1540, 821
    canvas2 = Canvas(frame_ch, width=WIDTH, height=HEIGTH, bd=0, highlightthickness=0)
    canvas2.place(relx=0, rely=0, relwidth=1, relheight=1)


    firstcolor = "#f36958"
    secondcolor = "#132d7d"
    style = ttk.Style()
    style.theme_create("th_chp", parent="alt", settings={
                       "TNotebook": {"configure": {"tabmargins": [2, 5, 2, 0]}},
                       "TNotebook.Tab": {
                           "configure": {"padding": [5, 1], "background": firstcolor},
                           "map": {"background": [("selected", secondcolor)],
                                   "expand": [("selected", [1, 1, 1, 0])]}}})

    style.theme_use("th_chp")

    notebook = ttk.Notebook(canvas2)
    tab1 = Frame(notebook)
    IMAGE_PATH = 'empty2.png'
    WIDTH, HEIGTH = 1540, 821
    canvas3 = Canvas(tab1, width=WIDTH, height=HEIGTH, bd=0, highlightthickness=0)
    canvas3.place(relx=0, rely=0, relwidth=1, relheight=1)
    img2 = ImageTk.PhotoImage(Image.open(IMAGE_PATH).resize((WIDTH, HEIGTH), Image.ANTIALIAS))
    canvas3.background = img2
    canvas3.create_image(0, 0, anchor="nw", image=img2)

    tab2 = Frame(notebook, bg="blue")
    notebook.add(tab1, text="Chapter1")
    notebook.add(tab2, text="Chapter2")
    notebook.pack(expand=True, fill="both")



   Chapters = Menu(mainmenu, tearoff=0)
   mainmenu.add_cascade(label="Chapters", menu=Chapters)
   Chapters.add_command(label="Chapters", command=ch_fr) #this is the menu button that open the tab page

THE FIRST TIME I RUN THE APP

AND THIS IS AFTER I CLICK ON ANOTHER BUTTON AND RETURN TO THE PAGE



source https://stackoverflow.com/questions/69789838/tkinter-notebook-tab-header-background-error
Labels:

Comments

Post a Comment

Popular posts from this blog

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more

The number of nodes and edges I calculated manually and by a method provided by networkx library dont match

I am trying to analyse a graph using networkx library in Python. I have implemented a function that returns the nodes and edges of that graph. After that I counted the number of nodes and edges by implementing the len() function for nodes and edges, which gave me 17 for both nodes and edges. However, when I used the method graph.number_of_nodes() of networkx library it gave me 53. My code: import pandas as pd import networkx as nx import matplotlib.pyplot as plt header_list = ["a","b","w"] E =pd.read_csv("aves-barn-swallow-contact-network.edges",sep=" ",header= None,names=header_list) # print(E.head()) # prints first few rows of the csv file G = nx.from_pandas_edgelist(E,"a","b",["w"]) nx.draw(G) plt.show() class GraphAnalyse: #finding nodes and edges def nodeEdge(self,Graph): nodes = Graph.nodes() edges = Graph.edges() ...
Post a Comment
Read more