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from tkinter import Tk, ttk, Toplevel, Menu, Frame, Label, Text, Scrollbar, Button, INSERT, NS, EW, Variable
from sympy import *
#from sympy.plotting import *
import keyboard

class Hauptfenster:
    active_tab_index = 0
    active_tab = "" 
    def __init__(self, master):
        self.master = master
        master.title("Hauptfenster")

        #menüleiste erstellen
        self.menubar = Menu(self.master, bg="#000000")
        self.filemenu = Menu(self.menubar, tearoff=0)
        self.filemenu.add_command(label="Tastatur", command=self.show_tastatur)
        self.menubar.add_cascade(label="Anzeigen", menu=self.filemenu)
        self.helpmenu = Menu(self.menubar, tearoff=0)
        self.helpmenu.add_command(label="About...", command=None)
        self.helpmenu.add_separator()
        self.helpmenu.add_command(label="Exit", command=self.master.quit)
        self.menubar.add_cascade(label="Help", menu=self.helpmenu)
        self.master.config(menu=self.menubar)
        
        #notebook ...
        self.tabs = ttk.Notebook(master)
        self.tabs.pack()       
        # ... mit tabs erstellen
        self.editor_frame = Frame(self.tabs)
        self.editor = Editor(self.editor_frame)
        self.second = Frame(self.tabs)
        self.second_label=Label(self.second, text="second Tab (needed later)")
        self.second_label.pack()
        self.third = Frame(self.tabs)
        self.third_label=Label(self.third, text="third Tab (needed later)")
        self.third_label.pack()
        self.fourth = Frame(self.tabs)
        self.fourth_label=Label(self.fourth, text="fourth Tab (needed later)")
        self.fourth_label.pack()
        #tabs zu Notebook hinzufügen -> visualisieren
        self.tabs.add(self.editor_frame, text="EDITOR")
        self.tabs.add(self.second, text="2")
        self.tabs.add(self.third, text="3")
        self.tabs.add(self.fourth, text="4")
        self.tabs.bind("<<NotebookTabChanged>>", self.tab_changed)
    
    def show_tastatur(self):
        self.tastatur=Tastatur(self.master)
    
    def tab_changed(self, *event):
        self.active_tab_index = self.tabs.index("current")
        self.active_tab = self.tabs.tab(self.active_tab_index,"text")
        if Tastatur.OPENED: self.tastatur.update(ati=self.active_tab_index, atn=self.active_tab)

class Tastatur:
    OPENED = True
    NAME = "Tastatur"
    
    def __init__(self, master):
        self.master = master
        self.tastatur_tl = Toplevel(self.master)
        self.tastatur_tl.title(self.NAME)
        self.tastatur_tl.protocol("WM_DELETE_WINDOW", self.close)
        #BUTTONDICT beinhaltet alle momentan gebrauchten Tasten.
        self.BUTTONDICT = ({"None":{"command":self.bklicked(""), "text":" "},
                            "0":{"command":self.bklicked("0"), "text":"0"},
                            "1":{"command":self.bklicked("1"), "text":"1"},
                            "2":{"command":self.bklicked("2"), "text":"2"},
                            "3":{"command":self.bklicked("3"), "text":"3"},
                            "4":{"command":self.bklicked("4"), "text":"4"},
                            "5":{"command":self.bklicked("5"), "text":"5"},
                            "6":{"command":self.bklicked("6"), "text":"6"},
                            "7":{"command":self.bklicked("7"), "text":"7"},
                            "8":{"command":self.bklicked("8"), "text":"8"},
                            "9":{"command":self.bklicked("9"), "text":"9"},
                            "A":{"command":self.bklicked("A"), "text":"A"},
                            "B":{"command":self.bklicked("B"), "text":"B"},
                            "C":{"command":self.bklicked("C"), "text":"C"},
                            "D":{"command":self.bklicked("D"), "text":"D"},
                            "E":{"command":self.bklicked("E"), "text":"E"},
                            "F":{"command":self.bklicked("F"), "text":"F"},
                            "G":{"command":self.bklicked("G"), "text":"G"},
                            "H":{"command":self.bklicked("H"), "text":"H"},
                            "I":{"command":self.bklicked("I"), "text":"I"},
                            "J":{"command":self.bklicked("J"), "text":"J"},
                            "K":{"command":self.bklicked("K"), "text":"K"},
                            "L":{"command":self.bklicked("L"), "text":"L"},
                            "M":{"command":self.bklicked("M"), "text":"M"},
                            "N":{"command":self.bklicked("N"), "text":"N"},
                            "O":{"command":self.bklicked("O"), "text":"O"},
                            "P":{"command":self.bklicked("P"), "text":"P"},
                            "Q":{"command":self.bklicked("Q"), "text":"Q"},
                            "R":{"command":self.bklicked("R"), "text":"R"},
                            "S":{"command":self.bklicked("S"), "text":"S"},
                            "T":{"command":self.bklicked("T"), "text":"T"},
                            "U":{"command":self.bklicked("U"), "text":"U"},
                            "V":{"command":self.bklicked("V"), "text":"V"},
                            "W":{"command":self.bklicked("W"), "text":"W"},
                            "X":{"command":self.bklicked("X"), "text":"X"},
                            "Y":{"command":self.bklicked("Y"), "text":"Y"},
                            "Z":{"command":self.bklicked("Z"), "text":"Z"},
                            "!":{"command":self.bklicked("exclm"), "text":"!"},
                            "?":{"command":self.bklicked("quest"), "text":"?"},
                            "komma":{"command":self.bklicked("komma"), "text":","},
                            "gleich":{"command":self.bklicked("gleich"), "text":"="},
                            "plus":{"command":self.bklicked("plus"), "text":"+"},
                            "minus":{"command":self.bklicked("minus"), "text":"-"},
                            "mal":{"command":self.bklicked("mal"), "text":"\u22C5"},
                            "durch":{"command":self.bklicked("durch"), "text":":"},
                            "hoch":{"command":self.bklicked("hoch"), "text":"^"},
                            "wurzel":{"command":self.bklicked("wurzel"), "text":"\u221A"},
                            "sinus":{"command":self.bklicked("sinus"), "text":"sin( )"},
                            "cosinus":{"command":self.bklicked("cosinus"), "text":"cos( )"},
                            "tangens":{"command":self.bklicked("tangens"), "text":"tan( )"},
                            "logarithmus":{"command":self.bklicked("logarithmus"), "text":"log( )"},
                            "EXP":{"command":self.bklicked("EXP"), "text":"\u22C5"+"10^( )"},
                            "EXE":{"command":self.bklicked("EXE"), "text":"EXE"},
                            "f(x)":{"command":self.bklicked("fx"), "text":"f(x)"},
                            "x":{"command":self.bklicked("x"), "text":"x"},
                            "r(theta)":{"command":self.bklicked("rtheta"), "text":"f(\u03b8)"},
                            "theta":{"command":self.bklicked("theta"), "text":"\u03b8"},
                          })
            
        self.buttonlist = Variable(self.master)
        if Hauptfenster.active_tab_index == 0: self.buttonlist.set(Editor.buttonlist)
        elif Hauptfenster.active_tab_index == 1: self.buttonlist.set(Second.buttonlist)
        elif Hauptfenster.active_tab_index == 2: self.buttonlist.set(Third.buttonlist)
        elif Hauptfenster.active_tab_index == 3: self.buttonlist.set(Fourth.buttonlist)
        else: self.buttonlist.set([])

        co = ro = 0
        for button in self.buttonlist.get():
            b_info = self.BUTTONDICT.get(button)
            b = Button(self.tastatur_tl, text=b_info.get("text"), command=b_info.get("command"), width=6)
            b.grid(column=co, row=ro)
            ro += 1
            if ro >= 4:
                ro=0
                co += 1

    def close(self):
        self.OPENED = False
        print("tastatur wurde geschlossen!")
        self.tastatur_tl.destroy()

    def update(self, ati, atn):
        self.active_tab_index = ati
        self.active_tab_name = atn
        self.NAME = "Tastatur ({0})".format(self.active_tab_name)

        if self.OPENED:
            self.tastatur_tl.title(self.NAME)
            for widget in self.tastatur_tl.winfo_children(): #destroys all widgets in tastatur_tl
                widget.destroy()
            
            self.buttonlist = Variable(self.master)
            if self.active_tab_index == 0: self.buttonlist.set(Editor.buttonlist)
            elif self.active_tab_index == 1: self.buttonlist.set(Second.buttonlist)
            elif self.active_tab_index == 2: self.buttonlist.set(Third.buttonlist)
            elif self.active_tab_index == 3: self.buttonlist.set(Fourth.buttonlist)
            else: self.buttonlist = []

            co = ro = 0
            for button in self.buttonlist.get():
                b_info = self.BUTTONDICT.get(button)
                b = Button(self.tastatur_tl, text=b_info.get("text"), command=b_info.get("command"), width=6)
                b.grid(column=co, row=ro)

                ro += 1
                if ro >= 4:
                    ro=0
                    co += 1
                
    def bklicked(self, button):
        #keyboard.press_and_release(button) dafür müste allerdings der fokus in der konsole bleiben
        #Hauptfenster.tabs.editor.console.insert(button) alternative? aber wie kann ich die Konsole ansprechen? so wie es hier ist, funktioniert es nicht! :(
        pass

class Editor:
    buttonlist = ["A","H","O","V","B","I","P","W","C","J","Q","X","D","K","R","Y","E","L","S","Z","F","M","T","!","G","N","U","?","None","None","None","None","7","4","1","komma","8","5","2","0","9","6","3","EXP","hoch","mal","plus","gleich","wurzel","durch","minus","EXE","logarithmus","sinus", "cosinus","tangens"]
    
    def __init__(self, master):
        self.master = master
        self.console = Text(self.master, height=10, width=50, bd=1)
        self.scroll = Scrollbar(self.master, orient="vertical", command=self.console.yview)
        self.console.tag_configure("tag_right", justify="right")
        self.console.config(yscrollcommand=self.scroll.set)
        self.console.grid(column=0, row=0)
        self.console.focus()
        self.scroll.grid(column=1,row=0, sticky=NS)

class Second:
    buttonlist = ["f(x)","x","r(theta)","theta","7","4","1","komma","8","5","2","0","9","6","3","EXP","wurzel","durch","plus","gleich","hoch","mal","minus","EXE","logarithmus","sinus", "cosinus","tangens"]
    pass

class Third:
    buttonlist = ["7","4","1","komma","8","5","2","0","9","6","3","EXE"]
    pass

class Fourth:
    buttonlist = ["7","4","1","komma","8","5","2","0","9","6","3","EXE"]
    pass

root = Tk()
window = Hauptfenster(root)
root.mainloop()