fixed windows gui bugs

mia-gui.py

@@ -0,0 +1,11 @@
+""" simple startup file for the gui """
+
+import multiprocessing
+
+
+if __name__ == "__main__":
+    multiprocessing.freeze_support()
+
+    from mtor.gui import run_gui
+    run_gui()
+

mtor/gui.py

@@ -1,9 +1,10 @@
 from pathlib import Path
-
+from subprocess import Popen
 home = Path.home()
 
 
 import sys
+import os
 from PyQt5.QtWidgets import (
     QApplication,
     QMainWindow,
@@ -181,6 +182,15 @@ def run_gui():
         pw = prescan_workflow(*analysis_parameters)
         iw = image_workflow(pw.parameters)
         dw = data_workflow(iw.data, iw.parameters)
-        fw = postprocessing_workflow(dw.data, dw.parameters)  # noqa: F841
+        fw = postprocessing_workflow(dw.data, dw.parameters)
+        pdf_path = fw.parameters.data_dir / "report.pdf"
+        if sys.platform.startswith("win"):
+            os.startfile(str(pdf_path))
+        else:
+            if sys.platform.startswith("darwin"):
+                cmd = ["open", path]
+            else:
+                cmd = ["xdg-open", path]
+            Popen(cmd, shell=False, stding=None, stdout=None, stderr=None, close_fds=True)
             
     sys.exit()

test.py

@@ -1,4 +0,0 @@
-from mtor.gui import run_gui
-
-run_gui()
-