Set current syste as default source system value

SpanshRouter/AutoCompleter.py

@@ -14,7 +14,7 @@ class AutoCompleter(Entry, PlaceHolder):
     def __init__(self, parent, placeholder, **kw):
         Entry.__init__(self, parent, **kw)
         self.var = self["textvariable"] = StringVar()
-        self.var.trace('w', self.changed)
+        self.var.traceid = self.var.trace('w', self.changed)
 
         self.parent = parent
 
@@ -176,6 +176,13 @@ class AutoCompleter(Entry, PlaceHolder):
         except Queue.Empty:
             pass
         self.after(100, self.update_me)
+    
+    def set_text(self, text):
+        self.var.trace_vdelete("w", self.var.traceid)
+        self.set_default_style()
+        self.delete(0, END)
+        self.insert(0, text)
+        self.var.traceid = self.var.trace('w', self.changed)
 
 if __name__ == '__main__':
     root = Tk()

SpanshRouter/PlaceHolder.py

@@ -14,8 +14,12 @@ class PlaceHolder():
     def put_placeholder(self):
         self['fg'] = self.placeholder_color
         if self.get() != self.placeholder:
-            self.delete(0, END)
-            self.insert(0, self.placeholder)
+            self.set_text(self.placeholder)
+
+    def set_text(self, text):
+        self.set_default_style()
+        self.delete(0, END)
+        self.insert(0, text)
 
     def force_placeholder_color(self):
         self['fg'] = self.placeholder_color

SpanshRouter/SpanshRouter.py

@@ -128,6 +128,7 @@ class SpanshRouter():
             self.plot_gui_btn.grid_remove()
             self.csv_route_btn.grid_remove()
             self.source_ac.grid()
+            self.source_ac.set_text(monitor.system)
             self.dest_ac.grid()
             self.range_entry.grid()
             self.efficiency_slider.grid()