Finished Version 1.0. Guide for installation will be available soon

midi_converter.py

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+from kivy.uix.screenmanager import ScreenManager
+from kivymd.uix.screen import MDScreen
+from kivy.uix.popup import Popup
+from kivy.properties import ObjectProperty
+from kivy.lang import Builder
+from kivy.uix.label import Label
+from kivymd.app import MDApp
+from mido import MidiFile
+import os
+import backend.midi_management
+import backend.csv_parsers
+import time
+
+
+class HomeScreen(MDScreen):
+    pass
+
+
+class FileChooserScreen(MDScreen):
+    loadfile = ObjectProperty(None)
+    def load(self, path, filename):
+        try:
+            self.path = os.path.join(path, filename[0])
+            try:
+                self.mid = MidiFile(self.path, clip=True)
+                backend.csv_parsers.CsvWrite().write_str("./backend/temp.csv", [self.path])
+                self.tracks = []
+                for self.track in self.mid.tracks:
+                    self.tracks.append(str(self.track))
+                self.tracks.pop(0)
+                if len(self.tracks) > 1:
+                    screen_manager.get_screen("Track").ids.track_spinner.values = self.tracks
+                    screen_manager.current = "Track"
+                    screen_manager.transition.direction = "up"
+                else:
+                    screen_manager.current = "Home"
+                    screen_manager.transition.direction = "right"
+            except:
+                self.popup_fe = Popup(title="FileError", content=Label(text="Please select a MIDI-File!"),
+                            size_hint=(0.4, 0.4), auto_dismiss=True)
+                self.popup_fe.open()
+
+        except:
+            self.popup_foldererror = Popup(title="FileError", content=Label(text="Only MIDI-Files allowed, not folder"),
+                                  size_hint=(0.4, 0.4), auto_dismiss=True)
+            self.popup_foldererror.open()
+
+
+class TrackChooseScreen(MDScreen):
+    def extract(self):
+        self.chosen_track = self.ids.track_spinner.text
+        if self.chosen_track == "Select a track":
+            self.popup_ns = Popup(title="NoSelectionError", content=Label(text="Please select a Track!"),
+                                  size_hint=(0.4, 0.4), auto_dismiss=True)
+            self.popup_ns.open()
+        else:
+            self.path = backend.csv_parsers.CsvRead().importing("./backend/temp.csv").pop(0)
+            self.path_transmit = self.path.pop(0)
+            backend.midi_management.MidiManagement().analyse_track(str(self.path_transmit), self.chosen_track)
+            screen_manager.get_screen("Home").ids.infobox.text = "The command has been copied to the clipboard"
+            screen_manager.current = "Home"
+            screen_manager.transition.direction = "right"
+
+
+
+class MidiConverter(MDApp):
+    global screen_manager
+    screen_manager = ScreenManager()
+
+    def build(self):
+        self.title = "Midi-Microbit-Converter"
+        self.theme_cls.primary_palette = "Blue"
+        self.theme_cls.accent_palette = "BlueGray"
+        screen_manager.add_widget(Builder.load_file("./gui/gui.kv"))
+        screen_manager.add_widget(Builder.load_file("./gui/filechooser.kv"))
+        screen_manager.add_widget(Builder.load_file("./gui/loading_screen.kv"))
+
+        return screen_manager
+
+MidiConverter().run()