diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ba0430d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+__pycache__/
\ No newline at end of file
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..6e0fa0a
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: Aktuelle Datei",
+            "type": "python",
+            "request": "launch",
+            "program": "gui.py",
+            "console": "integratedTerminal"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/NassiShneidermann.py b/NassiShneidermann.py
index a5f3d67..766e210 100644
--- a/NassiShneidermann.py
+++ b/NassiShneidermann.py
@@ -39,25 +39,39 @@ class NassiShneidermanDiagram:
                     if line and not re.match(r"""^//|^#|^COMMENT|^--""", line):
                         lines.append(line)
         except:
-            logging.error(f"Failed to open input path {filepath}!")
+            logging.error(f"Failed to open input file {filepath}!")
         
         return lines
 
     def load_from_file(self, filepath: str):
         filtered_lines = self.load_code_lines(filepath)
-        print(filtered_lines)
-        num_brace
+        global_scope = []
+        current_scope = global_scope
         for line in filtered_lines:
-            if line.startswith("while("):
+            logging.debug(line)
+            if line.__contains__('}'):
+                current_scope.append("scope exit")
+                current_scope = global_scope[-1] # does not get correct parent scope
+                #TODO: get correct parent scope
+            if line.__contains__('{'):
+                current_scope.append("scope enter")
+                current_scope.append([])
+                current_scope = current_scope[-1]
+
+            elif not line.__contains__('}'):
+                current_scope.append("generic instruction")
+        print(global_scope)
+
+
+
 
     
-if __name__ == "__main__":
-    """for debugging"""
-
+"""if __name__ == "__main__":
+    #for debugging
     from Iinstruction import *
 
     NSD = NassiShneidermanDiagram(True)
 
     NSD.load_from_file("res/input/input.java")
 
-    NSD.convert_to_image("Nina", 500)
+    NSD.convert_to_image("Nina", 500)"""
diff --git a/README.md b/README.md
index 2a6b19f..ee43f6a 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # Nassi-Shneiderman-Diagramm-Generator
 This python code generates a Nassi Shneiderman Diagramm from Java Source Code
+
+
+How it works:
+In the final Version, you will just have to execute the nassi.exe and choose your Code, it will display the Nassi-Shneiderman-Diagramm and give you the path of the created picture.
\ No newline at end of file
diff --git a/gui.py b/gui.py
index 5a6064f..d3a438e 100644
--- a/gui.py
+++ b/gui.py
@@ -1,7 +1,11 @@
 
+from to_nassi import nassi
+
 import PySimpleGUI as sg
 import os.path
 
+#sg.theme_previewer()
+
 java_file_list_column = [
     [  
         sg.Text('Java Folder'),
@@ -46,7 +50,7 @@ layout = [
     ]
 ]
 
-window = sg.Window('Nassi Viewer', layout)
+window = sg.Window('Nassi Viewer', layout, resizable=True)
 
 while True:
     event, values = window.read()
@@ -78,7 +82,6 @@ while True:
             pass
     if event == '-JAVA FOLDER-':
         folder = values['-JAVA FOLDER-']
-        print(folder)
         try:
             file_list = os.listdir(folder)
         except:
@@ -90,7 +93,17 @@ while True:
             and f.lower().endswith(('.java', '.txt'))
         ]
         window['-JAVA FILE LIST-'].update(fnames)
-        
-        
+    elif event == '-JAVA FILE LIST-':
+        try:
+            filename = os.path.join(
+                values["-JAVA FOLDER-"], values["-JAVA FILE LIST-"][0]
+            )
+
+            window["-TOUT-"].update(filename)
+            nassi(filename)
+
+        except:
+            pass
+    
 
 window.close()
diff --git a/to_nassi.py b/to_nassi.py
new file mode 100644
index 0000000..239e579
--- /dev/null
+++ b/to_nassi.py
@@ -0,0 +1,8 @@
+from NassiShneidermann import NassiShneidermanDiagram
+from Iinstruction import *
+
+
+def nassi(filepath):
+    NSD = NassiShneidermanDiagram(True)
+    NSD.load_from_file(filepath)
+    NSD.convert_to_image("Nina", 500)
\ No newline at end of file