Changes imports back to v5.5 level

src/AnalyzeView/AnalyzePage.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl               1.0
 import QGroundControl.Palette       1.0

src/AnalyzeView/AnalyzeView.qml

@@ -12,8 +12,8 @@
 ///     @brief Setup View
 ///     @author Don Gagne <don@thegagnes.com>
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl               1.0
 import QGroundControl.Palette       1.0

src/AnalyzeView/GeoTagPage.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
 
 import QGroundControl               1.0

src/AnalyzeView/LogDownloadPage.qml

@@ -7,10 +7,10 @@
  *
  ****************************************************************************/
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 import QtQuick.Dialogs      1.2
-import QtQuick.Layouts      1.3
+import QtQuick.Layouts      1.2
 
 import QGroundControl               1.0
 import QGroundControl.Palette       1.0

src/AutoPilotPlugins/APM/APMAirframeComponent.qml

@@ -8,10 +8,10 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
-import QtQuick.Layouts  1.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMAirframeComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMCameraComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMCameraComponentSummary.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMFlightModesComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMFlightModesComponentSummary.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMLightsComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMLightsComponentSummary.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMNotSupported.qml

@@ -8,7 +8,7 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl.Controls 1.0
 

src/AutoPilotPlugins/APM/APMPowerComponent.qml

@@ -8,10 +8,10 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
-import QtQuick.Layouts  1.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMPowerComponentSummary.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMRadioComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMSafetyComponentCopter.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 import QtGraphicalEffects   1.0
 
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/APM/APMSafetyComponentPlane.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 import QtGraphicalEffects   1.0
 
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/APM/APMSafetyComponentRover.qml

@@ -8,7 +8,7 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl.Controls 1.0
 

src/AutoPilotPlugins/APM/APMSafetyComponentSub.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 import QtGraphicalEffects   1.0
 
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/APM/APMSafetyComponentSummaryCopter.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMSafetyComponentSummaryPlane.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMSafetyComponentSummaryRover.qml

@@ -8,7 +8,7 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl.Controls 1.0
 

src/AutoPilotPlugins/APM/APMSafetyComponentSummarySub.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMSensorsComponent.qml

@@ -8,11 +8,11 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
-import QtQuick.Layouts          1.3
+import QtQuick.Layouts          1.2
 
 import QGroundControl               1.0
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/APM/APMSensorsComponentSummary.qml

-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/APM/APMSubFrameComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/APM/APMSubFrameComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/APM/APMTuningComponentCopter.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/Common/ESP8266Component.qml

@@ -8,10 +8,10 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
-import QtQuick.Layouts  1.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl               1.0
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/Common/ESP8266ComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/Common/MixersComponent.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/Common/MotorComponent.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
 
 import QGroundControl               1.0

src/AutoPilotPlugins/Common/RadioComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
 
 import QGroundControl               1.0

src/AutoPilotPlugins/Common/SetupPage.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
 
 import QGroundControl               1.0

src/AutoPilotPlugins/PX4/AirframeComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QtQuick.Controls.Styles 1.4
 import QtQuick.Dialogs 1.2
 

src/AutoPilotPlugins/PX4/AirframeComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/PX4/CameraComponent.qml

@@ -8,10 +8,10 @@
  ****************************************************************************/
 
 
-import QtQuick                      2.7
-import QtQuick.Controls             1.4
+import QtQuick                      2.3
+import QtQuick.Controls             1.2
 import QtQuick.Controls.Styles      1.4
-import QtQuick.Layouts              1.3
+import QtQuick.Layouts              1.2
 import QtGraphicalEffects           1.0
 
 import QGroundControl               1.0

src/AutoPilotPlugins/PX4/CameraComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/PX4/FlightModesComponentSummary.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/PX4/PX4AdvancedFlightModes.qml

@@ -8,11 +8,11 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
-import QtQuick.Layouts          1.3
+import QtQuick.Layouts          1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/PX4/PX4FlightModes.qml

@@ -8,11 +8,11 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
-import QtQuick.Layouts          1.3
+import QtQuick.Layouts          1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/PX4/PX4RadioComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/PX4/PX4SimpleFlightModes.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/PX4/PX4TuningComponentCopter.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.Controls  1.0
 

src/AutoPilotPlugins/PX4/PX4TuningComponentPlane.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.Controls  1.0
 

src/AutoPilotPlugins/PX4/PX4TuningComponentVTOL.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick              2.7
-import QtQuick.Controls     1.4
+import QtQuick              2.3
+import QtQuick.Controls     1.2
 
 import QGroundControl.Controls  1.0
 

src/AutoPilotPlugins/PX4/PowerComponent.qml

@@ -7,10 +7,10 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
-import QtQuick.Layouts  1.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.FactControls  1.0

src/AutoPilotPlugins/PX4/PowerComponentSummary.qml

@@ -12,8 +12,8 @@
 ///     @brief Battery, propeller and magnetometer summary
 ///     @author Gus Grubba <mavlink@grubba.com>
 
-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/PX4/SafetyComponent.qml

@@ -8,10 +8,10 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
-import QtQuick.Layouts          1.3
+import QtQuick.Layouts          1.2
 import QtGraphicalEffects       1.0
 
 import QGroundControl.FactSystem    1.0

src/AutoPilotPlugins/PX4/SafetyComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/AutoPilotPlugins/PX4/SensorsComponent.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QtQuick.Controls.Styles 1.4
 import QtQuick.Dialogs 1.2
 

src/AutoPilotPlugins/PX4/SensorsComponentSummary.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QtQuick.Controls.Styles 1.4
 
 import QGroundControl.FactSystem 1.0

src/AutoPilotPlugins/PX4/SensorsComponentSummaryFixedWing.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0

src/FactSystem/FactControls/FactBitmask.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.Palette       1.0

src/FactSystem/FactControls/FactCheckBox.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QtQuick.Controls.Styles 1.4
 
 import QGroundControl.FactSystem 1.0

src/FactSystem/FactControls/FactComboBox.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QtQuick.Controls.Styles 1.4
 
 import QGroundControl.FactSystem 1.0

src/FactSystem/FactControls/FactLabel.qml

-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QtQuick.Controls.Styles 1.4
 
 import QGroundControl.FactSystem 1.0

src/FactSystem/FactControls/FactPanel.qml

@@ -11,8 +11,8 @@
 /// @file
 ///     @author Don Gagne <don@thegagnes.com>
 
-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl.FactSystem 1.0
 import QGroundControl.Controls 1.0

src/FactSystem/FactControls/FactTextField.qml

-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
 

src/FactSystem/FactControls/FactTextFieldGrid.qml

-import QtQuick          2.7
-import QtQuick.Layouts  1.3
+import QtQuick          2.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.Controls      1.0

src/FactSystem/FactControls/FactTextFieldRow.qml

-import QtQuick          2.7
-import QtQuick.Layouts  1.3
+import QtQuick          2.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl.FactSystem    1.0
 import QGroundControl.Controls      1.0

src/FactSystem/FactSystemTest.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QGroundControl.FactSystem 1.0
 import QGroundControl.FactControls 1.0
 

src/FirmwarePlugin/APM/APMSensorParams.qml

@@ -7,7 +7,7 @@
  *
  ****************************************************************************/
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl.FactSystem 1.0
 

src/FirmwarePlugin/APM/CopterGeoFenceEditor.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FirmwarePlugin/APM/PlaneGeoFenceEditor.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
-import QtQuick.Layouts  1.3
+import QtQuick          2.3
+import QtQuick.Controls 1.2
+import QtQuick.Layouts  1.2
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FirmwarePlugin/NoGeoFenceEditor.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FirmwarePlugin/PX4/PX4GeoFenceEditor.qml

-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FlightDisplay/FlightDisplayView.qml

@@ -8,13 +8,13 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
-import QtLocation               5.6
-import QtPositioning            5.5
-import QtMultimedia             5.8
+import QtLocation               5.3
+import QtPositioning            5.3
+import QtMultimedia             5.5
 
 import QGroundControl               1.0
 import QGroundControl.FlightDisplay 1.0

src/FlightDisplay/FlightDisplayViewDummy.qml

@@ -7,7 +7,7 @@
  *
  ****************************************************************************/
 
-import QtQuick                  2.7
+import QtQuick                  2.3
 
 Rectangle {
     anchors.fill:               parent

src/FlightDisplay/FlightDisplayViewMap.qml

@@ -8,10 +8,10 @@
  ****************************************************************************/
 
 
-import QtQuick                      2.7
-import QtQuick.Controls             1.4
-import QtLocation                   5.6
-import QtPositioning                5.5
+import QtQuick                      2.3
+import QtQuick.Controls             1.2
+import QtLocation                   5.3
+import QtPositioning                5.3
 
 import QGroundControl               1.0
 import QGroundControl.FlightDisplay 1.0

src/FlightDisplay/FlightDisplayViewUVC.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick                  2.7
-import QtMultimedia             5.8
+import QtQuick                  2.3
+import QtMultimedia             5.5
 
 import QGroundControl           1.0
 

src/FlightDisplay/FlightDisplayViewVideo.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick                      2.7
-import QtQuick.Controls             1.4
+import QtQuick                      2.3
+import QtQuick.Controls             1.2
 
 import QGroundControl               1.0
 import QGroundControl.FlightDisplay 1.0

src/FlightDisplay/FlightDisplayViewWidgets.qml

@@ -8,12 +8,12 @@
  ****************************************************************************/
 
 
-import QtQuick                  2.7
-import QtQuick.Controls         1.4
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
 import QtQuick.Controls.Styles  1.4
 import QtQuick.Dialogs          1.2
-import QtLocation               5.6
-import QtPositioning            5.5
+import QtLocation               5.3
+import QtPositioning            5.3
 
 import QGroundControl                           1.0
 import QGroundControl.ScreenTools               1.0

src/FlightDisplay/MultiVehicleList.qml

@@ -7,9 +7,9 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
-import QtQuick.Layouts  1.3
+import QtQuick          2.3
+import QtQuick.Controls 1.2
+import QtQuick.Layouts  1.2
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FlightDisplay/VirtualJoystick.qml

@@ -8,7 +8,7 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FlightMap/FlightMap.qml

@@ -14,10 +14,10 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
-import QtLocation       5.6
-import QtPositioning    5.5
+import QtQuick          2.3
+import QtQuick.Controls 1.2
+import QtLocation       5.3
+import QtPositioning    5.3
 
 import QGroundControl                       1.0
 import QGroundControl.FactSystem            1.0

src/FlightMap/MapItems/MissionItemIndicator.qml

@@ -8,8 +8,8 @@
  ****************************************************************************/
 
 
-import QtQuick      2.7
-import QtLocation   5.6
+import QtQuick      2.3
+import QtLocation   5.3
 
 import QGroundControl.ScreenTools   1.0
 import QGroundControl.Controls      1.0

src/FlightMap/MapItems/MissionItemIndicatorDrag.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick      2.7
-import QtLocation   5.6
+import QtQuick      2.3
+import QtLocation   5.3
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FlightMap/MapItems/MissionItemView.qml

@@ -8,11 +8,11 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 import QtQuick.Dialogs  1.2
-import QtLocation       5.6
-import QtPositioning    5.5
+import QtLocation       5.3
+import QtPositioning    5.3
 
 import QGroundControl               1.0
 import QGroundControl.FlightMap     1.0

src/FlightMap/MapItems/MissionLineView.qml

@@ -8,9 +8,9 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
-import QtLocation       5.6
-import QtPositioning    5.5
+import QtQuick          2.3
+import QtLocation       5.3
+import QtPositioning    5.3
 
 import QGroundControl           1.0
 import QGroundControl.Palette   1.0

src/FlightMap/MapItems/PolygonEditor.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick      2.7
-import QtLocation   5.6
+import QtQuick      2.3
+import QtLocation   5.3
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0
@@ -69,8 +69,8 @@ Item {
         adjustingPolygon = true
         for (var i=0; i<vertexCoordinates.length; i++) {
             var dragItem = Qt.createQmlObject(
-                        "import QtQuick                     2.7; " +
-                        "import QtLocation                  5.6; " +
+                        "import QtQuick                     2.3; " +
+                        "import QtLocation                  5.3; " +
                         "import QGroundControl.ScreenTools  1.0; " +
                         "" +
                         "Rectangle {" +

src/FlightMap/MapItems/VehicleMapItem.qml

@@ -11,9 +11,9 @@
 /// @file
 ///     @author Don Gagne <don@thegagnes.com>
 
-import QtQuick          2.7
-import QtLocation       5.6
-import QtPositioning    5.5
+import QtQuick          2.3
+import QtLocation       5.3
+import QtPositioning    5.3
 
 import QGroundControl.ScreenTools   1.0
 import QGroundControl.Vehicle       1.0

src/FlightMap/MapScale.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
+import QtQuick          2.3
+import QtQuick.Controls 1.2
 
 import QGroundControl                   1.0
 import QGroundControl.Controls          1.0

src/FlightMap/QGCVideoBackground.qml

@@ -14,8 +14,8 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick 2.7
-import QtQuick.Controls 1.4
+import QtQuick 2.3
+import QtQuick.Controls 1.2
 import QGroundControl.QgcQtGStreamer 1.0
 
 VideoItem {

src/FlightMap/Widgets/CameraWidget.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Layouts  1.3
+import QtQuick          2.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl               1.0
 import QGroundControl.Controls      1.0

src/FlightMap/Widgets/CenterMapDropButton.qml

@@ -7,10 +7,10 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
-import QtQuick.Layouts  1.3
-import QtPositioning    5.5
+import QtQuick          2.3
+import QtQuick.Controls 1.2
+import QtQuick.Layouts  1.2
+import QtPositioning    5.3
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FlightMap/Widgets/CenterMapDropPanel.qml

@@ -7,10 +7,10 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Controls 1.4
-import QtQuick.Layouts  1.3
-import QtPositioning    5.5
+import QtQuick          2.3
+import QtQuick.Controls 1.2
+import QtQuick.Layouts  1.2
+import QtPositioning    5.3
 
 import QGroundControl               1.0
 import QGroundControl.ScreenTools   1.0

src/FlightMap/Widgets/CompassRing.qml

@@ -7,7 +7,7 @@
  *
  ****************************************************************************/
 
-import QtQuick              2.7
+import QtQuick              2.3
 import QtGraphicalEffects   1.0
 
 import QGroundControl.Controls      1.0

src/FlightMap/Widgets/InstrumentSwipeView.qml

-import QtQuick                  2.7
-import QtQuick.Controls         1.4
-import QtQuick.Layouts          1.3
+import QtQuick                  2.3
+import QtQuick.Controls         1.2
+import QtQuick.Layouts          1.2
 
 import QGroundControl.Palette       1.0
 import QGroundControl.ScreenTools   1.0

src/FlightMap/Widgets/MapFitFunctions.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtPositioning    5.5
+import QtQuick          2.3
+import QtPositioning    5.3
 
 import QGroundControl 1.0
 

src/FlightMap/Widgets/QGCArtificialHorizon.qml

@@ -14,7 +14,7 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 Item {
     id: root

src/FlightMap/Widgets/QGCAttitudeHUD.qml

@@ -14,7 +14,7 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick 2.7
+import QtQuick 2.3
 import QGroundControl.ScreenTools 1.0
 
 Item {

src/FlightMap/Widgets/QGCAttitudeWidget.qml

@@ -14,7 +14,7 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick              2.7
+import QtQuick              2.3
 import QtGraphicalEffects   1.0
 
 import QGroundControl               1.0

src/FlightMap/Widgets/QGCCompassWidget.qml

@@ -14,7 +14,7 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick              2.7
+import QtQuick              2.3
 import QtGraphicalEffects   1.0
 
 import QGroundControl.Controls      1.0

src/FlightMap/Widgets/QGCInstrumentWidget.qml

@@ -7,7 +7,7 @@
  *
  ****************************************************************************/
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl               1.0
 import QGroundControl.Controls      1.0

src/FlightMap/Widgets/QGCInstrumentWidgetAlternate.qml

@@ -8,7 +8,7 @@
  ****************************************************************************/
 
 
-import QtQuick 2.7
+import QtQuick 2.3
 
 import QGroundControl               1.0
 import QGroundControl.Controls      1.0

src/FlightMap/Widgets/QGCPitchIndicator.qml

@@ -14,7 +14,7 @@
  *   @author Gus Grubba <mavlink@grubba.com>
  */
 
-import QtQuick 2.7
+import QtQuick 2.3
 import QGroundControl.ScreenTools 1.0
 import QGroundControl.Controls 1.0
 

src/FlightMap/Widgets/ValuesWidget.qml

@@ -8,9 +8,9 @@
  ****************************************************************************/
 
 
-import QtQuick          2.7
+import QtQuick          2.3
 import QtQuick.Dialogs  1.2
-import QtQuick.Layouts  1.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl.Controls      1.0
 import QGroundControl.ScreenTools   1.0

src/FlightMap/Widgets/VehicleHealthWidget.qml

@@ -7,8 +7,8 @@
  *
  ****************************************************************************/
 
-import QtQuick          2.7
-import QtQuick.Layouts  1.3
+import QtQuick          2.3
+import QtQuick.Layouts  1.2
 
 import QGroundControl               1.0
 import QGroundControl.Controls      1.0