tkinter example color gui (snippet)

Python tkinter (gui) example 'color gui'

Functions in program:

• def init_styles():
• def defocus(event):
• def dit(*args):

Modules used in program:

• import os
• import json
• import webbrowser
• import threading
• import tkinter.ttk as ttk
• import tkinter as tk

color gui

Python tkinter example: color gui

import tkinter as tk
import tkinter.ttk as ttk
from tkinter import N, E, S, W, messagebox
from PIL import Image, ImageTk
import threading
import webbrowser
import json
import os

# My modules
#import twitch_data as twitch
#import color
#import font
#import style

def dit(*args):
    pass

light_grey = '#616161'
dark_purple = '#8700e6'
light_purple = '#bf77ff'
blue = '#0044ff'



class MainApplication(ttk.Frame):
    def __init__(self, parent, *args, **kwargs):
        ttk.Frame.__init__(self, parent, *args, **kwargs)
        self.s = None
        init_styles()
        self.parent = parent
        self.init_frames()
        self.grid_frames()

    def init_frames(self):
        self.navbar = Navbar(self)
        experiments = Experiments(self)
        videos = Videos(self)
        sessions = Sessions(self)
        datasets = Datasets(self)
        self.sections = [experiments, videos, sessions, datasets]

    def grid_frames(self):
        self.navbar.grid(row = 0, column = 0)
        for section in self.sections:
            section.grid(row = 0, column = 1, sticky = (N))
            section.grid_remove()
        self.section_changed(self.navbar.selection)

    def section_changed(self, index):
        for section in self.sections:
            section.grid_remove()
        self.sections[index].grid()

class Navbar(ttk.Frame):
    def __init__(self, parent, *args, **kwargs):
        ttk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        base_icon='icon'
        self.sections = [[ImageTk.PhotoImage(Image.open(os.path.join(base_icon, 'experiments_tiny.png'))), 'Experiments'], [ImageTk.PhotoImage(Image.open(os.path.join(base_icon, 'videos.png'))), 'Videos'], [ImageTk.PhotoImage(Image.open(os.path.join(base_icon, 'sessions.png'))), 'Sessions'], [ImageTk.PhotoImage(Image.open(os.path.join(base_icon, 'datasets.png'))), 'Datasets']]
        self.frames = []
        self.selection = 0
        self.init_widgets()
        self.change_style(self.frames[self.selection], 'light.TFrame', 'light.TLabel')
        self.grid_widgets()

    def init_widgets(self):
        # Frameception
        for index, section in enumerate(self.sections):
            frame = ttk.Frame(self, style = 'dark.TFrame')
            li = ttk.Label(frame, image = section[0], style = 'dark.TLabel')
            lt = ttk.Label(frame, text = section[1], style = 'dark.TLabel')
            frame.bind('<Enter>', self.enter)
            frame.bind('<Leave>', self.leave)
            #li.bind('<Button-1>', self.click)
            #lt.bind('<Button-1>', self.click)
            frame.bind('<Button-1>', self.click)
            self.frames.append(frame)
        self.label_filler = tk.Label(self, text = '', bg = dark_purple, height = 100)

    def grid_widgets(self):
        for index_frame, frame in enumerate(self.frames):
            for index_child, child in enumerate(frame.winfo_children()):
                child.grid(row = 0, column = index_child, padx = (0, 25 * index_child))
            frame.grid(row = index_frame, column = 0, sticky = (E, W))
        self.label_filler.grid(row = len(self.sections), column = 0, sticky = (E, W))

    def enter(self, event):
        self.change_style(event.widget, 'dark.TFrame', 'light.TFrame')

    def leave(self, event):
        if self.frames.index(event.widget) != self.selection:
            self.change_style(event.widget, 'light.TFrame', 'dark.TFrame')

    def click(self, event):
        if event.widget.winfo_class() == 'TFrame':
            index = self.frames.index(event.widget)
        else:
            index = self.frames.index(event.widget.master)
        if index != self.selection:
            self.change_style(self.frames[self.selection], 'dark.TFrame', 'light.TLabel')
            self.selection = index
            self.parent.section_changed(index)

    def change_style(self, widget, style_w, style_c):
        """Change the style of a widget and its children."""
        widget.configure(style = style_w)
        for child in widget.winfo_children():
            child.configure(style = style_c)

class Experiments(ttk.Frame):
    def __init__(self, parent, *args, **kwargs):
        ttk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.init_widgets()
        self.grid_widgets()

    def init_widgets(self):
        self.label = ttk.Label(self, text = 'Experiments')

    def grid_widgets(self):
        self.label.grid(row = 0, column = 0, padx = 10, pady = 10)

class Videos(ttk.Frame):
    def __init__(self, parent, *args, **kwargs):
        ttk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.init_widgets()
        self.grid_widgets()

    def init_widgets(self):
        self.label = ttk.Label(self, text = 'Videos')

    def grid_widgets(self):
        self.label.grid(row = 0, column = 0, padx = 10, pady = 10)

class Sessions(ttk.Frame):
    def __init__(self, parent, *args, **kwargs):
        ttk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.init_widgets()
        self.grid_widgets()

    def init_widgets(self):
        self.label = ttk.Label(self, text = 'Sessions')

    def grid_widgets(self):
        self.label.grid(row = 0, column = 0, padx = 10, pady = 10)

class Datasets(ttk.Frame):
    def __init__(self, parent, *args, **kwargs):
        ttk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.parent.s = None #self.import_settings()
        self.init_widgets()
        self.grid_widgets()

    def init_widgets(self):
        pass

    def grid_widgets(self):
        pass


def defocus(event):
    event.widget.master.focus_set()

def init_styles():
    print('init styles')
    s = ttk.Style()
    s.configure('TFrame', background = light_grey)
    #s.configure('TLabel', background = light_grey, font = ('Open Sans', 10, 'regular'))
    s.configure('TButton', padding = 2, font = ('Open Sans', 10, 'regular'))
    s.configure('TEntry')
    s.configure('TLabelframe', background = light_grey)
    s.configure('TCheckbutton', background = light_grey, font = ('Open Sans', 10, 'regular'))

    s.configure('large.TLabel', background = light_grey, font = ('Open Sans', 14, 'regular'))
    s.configure('medium.TLabel', background = light_grey, font = ('Open Sans', 12, 'regular'))
    s.configure('small.TLabel', background = light_grey, font = ('Open Sans', 10, 'regular'))
    s.configure('tiny.TLabel', background = light_grey, font = ('Open Sans', 8, 'regular'))

    s.configure('hyper.TLabel', background = light_grey, foreground = blue, cursor = 'hand2', font = ('Open Sans', 10, 'regular'))

    s.configure('dark.TFrame', background = dark_purple)
    s.configure('light.TFrame', background = light_purple)
    s.configure('dark.TLabel', background = dark_purple, font = ('Open Sans', 12, 'regular'))
    s.configure('light.TLabel', background = light_purple, font = ('Open Sans', 12, 'regular'))

if __name__ == '__main__':
    root = tk.Tk()
    root.title('TTV')
    #root.iconbitmap(default = 'icon.ico')
    root.geometry('1000x500')
    root.configure(bg = light_grey)
    MainApplication(root).grid(row = 0, column = 0, sticky = (N, E, S, W))
    root.mainloop()

Useful links

• Learn Tkinter: https://pythonbasics.org/tkinter/
• Wikipedia tkinter: https://en.wikipedia.org/wiki/Tkinter