added FIXMES for two problems

gui_handler.py

@@ -65,6 +65,8 @@ class Editor(Window):
         self.set_size(size[0], size[1])
 
         #layout
+        #FIXME: Somehow this places the editor behind the menu bar so that the
+        #       first couple lines are cut off
         layout = QtWidgets.QHBoxLayout()
         layout.addChildWidget(self.text_edit)
 
@@ -73,6 +75,9 @@ class Editor(Window):
     def resizeEvent(self, event):
         self.set_size(event.size().width(), event.size().height())
 
+    #FIXME: This function is inherently flawed because it doesn't take the
+    #       actual height of the usable area inside the window into account.
+    #       On a side note: This should be taken care of by the toolkit (Qt).
     def set_size(self, size_x, size_y):
         self.text_edit.resize(size_x, size_y)
         self.resize(size_x, size_y)