Appdata für Header, Flaggensymbole laden

appdata.py

@@ -2,13 +2,48 @@
 Generische Applikationsdaten
 
 """
+
+import os
 from tracker import Tracker
 
 class AppData():
+
     def __init__(self):
         self.shutdown = False # Globaler Ausschalter
         self.track = Tracker('NONE')
         self.frontend = None
 
+        # Für u.a. Header-Indikatoren
+        # TODO
+        self.status = {
+            'AP': False,    # Accesspoint
+            'WIFI': False,  # Wireless Client
+            'TCP': False,   # TCP Network
+            'N2K': False,   # NMEA2000
+            '183': False,   # NMEA0183
+            'USB': False,   # USB Datenverbindung
+            'GPS': False,   # GPS-Fix und -daten
+            'TRK': False    # Tracker
+        }
+
     def setFrontend(self, frontend):
         self.frontend = frontend # Referenz zur GUI
+
+    def refreshStatus(self):
+        self.status['AP'] = False
+
+        self.status['TCP'] = False
+        self.status['WIFI'] = False
+        for intf in os.listdir('/sys/class/net'):
+            statefile = os.path.join('/sys/class/net', interface, 'operstate')
+            wififile = os.path.join('/sys/class/net', interface, 'wireless')
+            if os.path.exists(statefile):
+                with open(statefile) as fh:
+                    state = f.read().strip()
+                if state == 'up':
+                    if os.path.exists(wififile):
+                        self.status['WIFI'] = True
+                    else:
+                        self.status['TCP'] = True
+
+        self.status['TRK'] = self.track.is_active()