Const-correctness

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>

src/AutoPilotPlugins/APM/APMAutoPilotPlugin.h

@@ -49,14 +49,14 @@ public:
     // Overrides from AutoPilotPlugin
     const QVariantList& vehicleComponents(void) final;
 
-    APMAirframeComponent*       airframeComponent   (void) { return _airframeComponent; }
-    APMCameraComponent*         cameraComponent     (void) { return _cameraComponent; }
-    APMFlightModesComponent*    flightModesComponent(void) { return _flightModesComponent; }
-    APMPowerComponent*          powerComponent      (void) { return _powerComponent; }
-    APMRadioComponent*          radioComponent      (void) { return _radioComponent; }
-    APMSafetyComponent*         safetyComponent     (void) { return _safetyComponent; }
-    APMSensorsComponent*        sensorsComponent    (void) { return _sensorsComponent; }
-    APMTuningComponent*         tuningComponent     (void) { return _tuningComponent; }
+    APMAirframeComponent*       airframeComponent   (void) const { return _airframeComponent; }
+    APMCameraComponent*         cameraComponent     (void) const { return _cameraComponent; }
+    APMFlightModesComponent*    flightModesComponent(void) const { return _flightModesComponent; }
+    APMPowerComponent*          powerComponent      (void) const { return _powerComponent; }
+    APMRadioComponent*          radioComponent      (void) const { return _radioComponent; }
+    APMSafetyComponent*         safetyComponent     (void) const { return _safetyComponent; }
+    APMSensorsComponent*        sensorsComponent    (void) const { return _sensorsComponent; }
+    APMTuningComponent*         tuningComponent     (void) const { return _tuningComponent; }
 
 public slots:
     // FIXME: This is public until we restructure AutoPilotPlugin/FirmwarePlugin/Vehicle

src/AutoPilotPlugins/APM/APMFlightModesComponentController.h

@@ -47,8 +47,8 @@ public:
     Q_PROPERTY(QVariantList channelOptionEnabled    READ channelOptionEnabled   NOTIFY channelOptionEnabledChanged)
     Q_PROPERTY(bool     fixedWing                   MEMBER _fixedWing           CONSTANT)
 
-    int activeFlightMode(void) { return _activeFlightMode; }
-    QVariantList channelOptionEnabled(void) { return _rgChannelOptionEnabled; }
+    int activeFlightMode(void) const { return _activeFlightMode; }
+    QVariantList channelOptionEnabled(void) const { return _rgChannelOptionEnabled; }
 
 signals:
     void activeFlightModeChanged(int activeFlightMode);