Implemented that the editor opens the file that gets specified by command line argument.

main.py

@@ -22,7 +22,7 @@ class BreadEditor:
     def run(self):
         self.gui.post_setup()
 
-        self.utils.open_last_file()
+        self.utils.on_start()
 
         self.utils.popup_init()
 

utils.py

@@ -106,7 +106,7 @@ class Utils:
 
             editor.update_style()
 
-    def open_last_file(self):
+    def on_start(self):
         if len(sys.argv) == 1:  # if no parameters were passed to the editor
             file_path = self.app.settings.last_opened_file
 
@@ -118,3 +118,10 @@ class Utils:
                 file_path = f"{os.path.dirname(os.path.abspath(__file__))}/example.txt"
                 file = File(self.app, file_path, file_path.split("/")[-1])
                 self.app.open_files[file_path] = file
+
+        else:
+            file_path = sys.argv[1]
+
+            if os.path.isfile(file_path):
+                file = File(self.app, file_path, file_path.split("/")[-1])
+                self.app.open_files[file_path] = file