uix.py

# Import UIX (User Interface XML) elements from kivy
from kivy.app import App
from kivy.uix.codeinput import CodeInput
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label

from kivy.config import Config
from kivy.core.window import Window
from pygments.lexers import PythonLexer



class Input(App):
    def __init__(self, kivy_connection, forbidden=[]):
        super().__init__()
        self.code = None
        self.output = None
        self.kivy_connection = kivy_connection
        self.forbidden = forbidden

        # Window parameters configuration
        Window.size = (500, 700)
        Window.clearcolor = (1, 1, 1, 1)

    def build(self):
        # Config to avoid orange dots on right click
        Config.set('input', 'mouse', 'mouse,multitouch_on_demand')

        # Buttons layout
        buttons = BoxLayout(orientation="vertical", spacing=20, size_hint=(0.3, 1))
        submit = Button(text="Submit", on_press=self.submit, size_hint=(1, 0.5), background_color=(0, 1, 1, 1))
        reset = Button(text="Reset", on_press=self.reset, size_hint=(1, 0.5), background_color=(1, 1, 1, 1))
        # close = Button(text="Exit", on_press=self.close, size_hint=(1, 0.3), background_color=(1,0,1,1))
        buttons.add_widget(submit)
        buttons.add_widget(reset)
        # buttons.add_widget(close)

        # Code layout with submit/reset buttons
        saisie = BoxLayout(orientation="horizontal", spacing=20, size_hint=(1, .65))
        self.code = CodeInput(multiline=True, hint_text="Enter code here ...", lexer=PythonLexer(), size_hint=(.7, 1))
        saisie.add_widget(self.code)
        saisie.add_widget(buttons)

        # Global layout with all the elements of the window
        layout = BoxLayout(orientation="vertical", spacing=10, padding=20, size=(600, 1200), size_hint=(1, 1))
        label = Label(text="Output :", halign='left', valign='top', size_hint=(1, .03), color=(0, 0, 0, 1))
        label.bind(size=label.setter('text_size'))
        self.output = Label(text="", halign='left', valign='top', size_hint=(1, .32), color=(0, 0, 0, 1))
        self.output.bind(size=self.output.setter('text_size'))
        layout.add_widget(saisie)
        layout.add_widget(label)
        layout.add_widget(self.output)

        return layout

    def submit(self, obj):
        """
                Is called when the submit button is pressed
                It uses the user_instruction() function to execute the code, and
                prints the result inside the output label
        """

        # Reset output
        self.output.text = ""
        # Send code input to arcade
        self.kivy_connection.send(self.code.text)

        # If there is some information to receive then display the output label
        if self.kivy_connection.poll(1):
            res = self.kivy_connection.recv()
            if res.startswith("/!\\"):  # error output
                self.output.color = "red"
            else:
                self.output.color = "black"
            self.output.text = res

    def reset(self, obj):
        """
        Clear the input window and the output label
        """
        self.code.text = ""
        self.output.text = ""

    def close(self, obj):
        # closing application
        App.get_running_app().stop()
        # removing window
        Window.close()