Source code for custom_step.fontchooser

import tkinter as tk
import tkinter.ttk as ttk
from tkinter.font import families




class FontChooser(tk.Toplevel):
    def __init__(self, master, **kwargs):
        super().__init__(**kwargs)
        self.master = master

        self.transient(self.master)
        self.geometry("500x250")
        self.title("Choose font and size")

        self.configure(bg=self.master.background)

        self.font_list = tk.Listbox(self, exportselection=False)

        self.available_fonts = sorted(families())

        for family in self.available_fonts:
            self.font_list.insert(tk.END, family)

        current_selection_index = self.available_fonts.index(self.master.font_family)
        if current_selection_index:
            self.font_list.select_set(current_selection_index)
            self.font_list.see(current_selection_index)

        self.size_input = tk.Spinbox(self, from_=0, to=99, value=self.master.font_size)

        self.save_button = ttk.Button(
            self, text="Save", style="editor.TButton", command=self.save
        )

        self.save_button.pack(side=tk.BOTTOM, fill=tk.X, expand=1, padx=40)
        self.font_list.pack(side=tk.LEFT, fill=tk.Y, expand=1)
        self.size_input.pack(side=tk.BOTTOM, fill=tk.X, expand=1)



    def save(self):
        font_family = self.font_list.get(self.font_list.curselection()[0])
        # yaml_file_contents = f"family: {font_family}\n" \
        #                    + f"size: {self.size_input.get()}"
        yaml_file_contents = "family: {}\n".format(font_family) + "size: {}".format(
            self.size_input.get()
        )

        with open(self.master.font_scheme_path, "w") as file:
            file.write(yaml_file_contents)

        self.master.update_font()