from guizero import App, TextBox, PushButton, Box, Combo, Slider, info, MenuBar

app = App(title="texteditor")

#def main():
    # disable_save()

# function for reading files
def open_file():
    with open(file_name.value, "r") as f:
        editor.value = f.read()

# function for writing files
def save_file():
    # button_save.visible = False
    with open(file_name.value, "w") as f:
        f.write(editor.value)
    button_save.disable()
    # info("Hide Button","Save button is hided!")
    # button_save.visible = True

def enable_save():
	button_save.enable()

def disable_save():
	button_save.disable()

def exit_app():
    app.destroy()

def change_font_type():
    editor.font = cmb_font_type.value
    enable_save()

def change_font_size():
    # editor.text_size = cmb_font_size.value
    editor.text_size = slider_font_size.value
        # resize the widget because if the text is made bigger, this might affect the size of the TextBox so guizero needs to know how to maintain the intended layout
    editor.resize(1, 1)
    editor.resize("fill", "fill")
    enable_save()

def change_font_color():
    editor.text_color = cmb_font_color.value
    enable_save()

def func_help():
    info ("TextZero Help", "This is your HELP! :)")

def func_about():
    info ("TextZero", "Made by us!")

# The new MenuBar
menubar = MenuBar(app,
                  toplevel=["File", "Help"],
                  options=[
                    [["Open",open_file],["Save",save_file],["Exit",exit_app]],
                    [["Help", func_help], ["About", func_about]]
                    ])


box_ribbon = Box(app, align="top", width="fill")

# create a box to house the controls, we want the box to span the entire width of the app
box_file_controls = Box(box_ribbon, align="top", width="fill")

# create an open button which uses the open_file function
button_open = PushButton(box_file_controls, text="Open",  align="left", command=open_file)

# create a save button which uses the save_file function
button_save = PushButton(box_file_controls, text="Save",  align="left", enabled = False, command=save_file)

# create a TextBox for the file name
file_name = TextBox(box_file_controls, text="text_file.txt", width=50, align="right")

box_font_controls = Box(box_ribbon, align="top", width="fill")

cmb_font_type = Combo (box_font_controls, options=["courier", "helvetica", "times new roman"], align="left", command=change_font_type, width = 16)
cmb_font_color = Combo (box_font_controls, options=["black", "red", "blue", "green"], align="left", command=change_font_color, width = 8)
slider_font_size = Slider(box_font_controls,  align="left", start = 8, end = 42, command=change_font_size)
# cmb_font_size = Combo (box_font_controls, options=["8", "12", "16", "24"], align="left", command=change_font_size, width = 4)


# create a TextBox which is not in the box and fills the rest of the GUI
editor = TextBox(app, multiline=True, height="fill", width="fill", command=enable_save)

# main()


app.display()