- made sure that the HDPI scaling attribute is set before the QApplication is started

- made sure that when saving a project, the app will try to update the active object from UI form only if there is an active object

FlatCAM.py

@@ -55,6 +55,11 @@ if __name__ == '__main__':
     # else:
     #     QGuiApplication.setAttribute(Qt.AA_EnableHighDpiScaling, False)
 
+    if hdpi_support == 2:
+        QtWidgets.QApplication.setAttribute(Qt.AA_EnableHighDpiScaling, True)
+    else:
+        QtWidgets.QApplication.setAttribute(Qt.AA_EnableHighDpiScaling, False)
+
     app = QtWidgets.QApplication(sys.argv)
 
     # apply style
@@ -63,11 +68,6 @@ if __name__ == '__main__':
         style = settings.value('style', type=str)
         app.setStyle(style)
 
-    if hdpi_support == 2:
-        app.setAttribute(Qt.AA_EnableHighDpiScaling, True)
-    else:
-        app.setAttribute(Qt.AA_EnableHighDpiScaling, False)
-
     fc = App()
 
     sys.exit(app.exec_())

FlatCAMApp.py

@@ -12809,7 +12809,9 @@ class App(QtCore.QObject):
             # Capture the latest changes
             # Current object
             try:
-                self.collection.get_active().read_form()
+                current_object = self.collection.get_active()
+                if current_object:
+                    current_object.read_form()
             except Exception as e:
                 self.log.debug("save_project() --> There was no active object. Skipping read_form. %s" % str(e))
                 pass

README.md

@@ -9,6 +9,11 @@ CAD program, and create G-Code for Isolation routing.
 
 =================================================
 
+5.04.2020 
+
+- made sure that the HDPI scaling attribute is set before the QApplication is started
+- made sure that when saving a project, the app will try to update the active object from UI form only if there is an active object
+
 4.04.2020 
 
 - fixed the Repeated code parsing in Excellon Parse