New ExclusiveGroupItem base class control

qgroundcontrol.qrc

@@ -117,6 +117,7 @@
         <file alias="QGroundControl/Controls/DropButton.qml">src/QmlControls/DropButton.qml</file>
         <file alias="QGroundControl/Controls/RoundButton.qml">src/QmlControls/RoundButton.qml</file>
         <file alias="QGroundControl/Controls/QGCCanvas.qml">src/QmlControls/QGCCanvas.qml</file>
+        <file alias="QGroundControl/Controls/ExclusiveGroupItem.qml">src/QmlControls/ExclusiveGroupItem.qml</file>
 
         <!-- Vehicle Setup -->
         <file alias="SetupView.qml">src/VehicleSetup/SetupView.qml</file>

src/QmlControls/ExclusiveGroupItem.qml

+import QtQuick                  2.4
+import QtQuick.Controls         1.2
+
+
+/// The ExclusiveGroupItem control can be used as a base class for a control which
+/// needs support for ExclusiveGroup
+Item {
+    id: _root
+
+    property bool checked: false
+    property ExclusiveGroup exclusiveGroup: null
+
+    onExclusiveGroupChanged: {
+        if (exclusiveGroup) {
+            exclusiveGroup.bindCheckable(_root)
+        }
+    }
+}

src/QmlControls/QGroundControl.Controls.qmldir

@@ -18,6 +18,7 @@ RoundButton         1.0 RoundButton.qml
 VehicleRotationCal  1.0 VehicleRotationCal.qml
 VehicleSummaryRow   1.0 VehicleSummaryRow.qml
 ViewWidget          1.0 ViewWidget.qml
+ExclusiveGroupItem  1.0 ExclusiveGroupItem.qml
 
 ParameterEditor         1.0 ParameterEditor.qml
 ParameterEditorDialog   1.0 ParameterEditorDialog.qml