Make arming check ui less confusing (#3646)

src/AutoPilotPlugins/APM/APMSafetyComponentCopter.qml

@@ -25,7 +25,7 @@ QGCView {
 
     FactPanelController { id: controller; factPanel: panel }
 
-    QGCPalette { id: palette; colorGroupEnabled: enabled }
+    QGCPalette { id: ggcPal; colorGroupEnabled: enabled }
 
     property Fact _failsafeGCSEnable:   controller.getParameterFact(-1, "FS_GCS_ENABLE")
     property Fact _failsafeBattEnable:  controller.getParameterFact(-1, "FS_BATT_ENABLE")
@@ -83,7 +83,7 @@ QGCView {
                         id:     failsafeSettings
                         width:  throttleEnableCombo.x + throttleEnableCombo.width + _margins
                         height: mahField.y + mahField.height + _margins
-                        color:  palette.windowShade
+                        color:  ggcPal.windowShade
 
                         QGCLabel {
                             id:                 gcsEnableLabel
@@ -217,7 +217,7 @@ QGCView {
                         id:     geoFenceSettings
                         width:  fenceAltMaxField.x + fenceAltMaxField.width + _margins
                         height: fenceAltMaxField.y + fenceAltMaxField.height + _margins
-                        color:  palette.windowShade
+                        color:  ggcPal.windowShade
 
                         QGCCheckBox {
                             id:                 circleGeo
@@ -341,7 +341,7 @@ QGCView {
                         id:     rtlSettings
                         width:  rltAltFinalField.x + rltAltFinalField.width + _margins
                         height: rltAltFinalField.y + rltAltFinalField.height + _margins
-                        color:  palette.windowShade
+                        color:  ggcPal.windowShade
 
                         Image {
                             id:                 icon
@@ -360,7 +360,7 @@ QGCView {
                         ColorOverlay {
                             anchors.fill:   icon
                             source:         icon
-                            color:          palette.text
+                            color:          ggcPal.text
                             visible:        _showIcon
                         }
 
@@ -472,7 +472,7 @@ QGCView {
                     Rectangle {
                         width:  flowLayout.width
                         height: armingCheckInnerColumn.height + (_margins * 2)
-                        color:  palette.windowShade
+                        color:  ggcPal.windowShade
 
                         Column {
                             id:                 armingCheckInnerColumn
@@ -482,19 +482,22 @@ QGCView {
                             anchors.right:      parent.right
                             spacing: _margins
 
+                            FactBitmask {
+                                id:                 armingCheckBitmask
+                                anchors.left:       parent.left
+                                anchors.right:      parent.right
+                                firstEntryIsAll:    true
+                                fact:               _armingCheck
+                            }
+
                             QGCLabel {
                                 id:             armingCheckWarning
                                 anchors.left:   parent.left
                                 anchors.right:  parent.right
                                 wrapMode:       Text.WordWrap
-                                text:            qsTr("Turning off arming checks can lead to loss of Vehicle control.")
-                            }
-
-                            FactBitmask {
-                                id:             armingCheckBitmask
-                                anchors.left:   parent.left
-                                anchors.right:  parent.right
-                                fact:           _armingCheck
+                                color:          qgcPal.warningText
+                                text:            qsTr("Warning: Turning off arming checks can lead to loss of Vehicle control.")
+                                visible:        _armingCheck.value != 1
                             }
                         }
                     } // Rectangle - Arming checks

src/FactSystem/FactControls/FactBitmask.qml

@@ -9,19 +9,47 @@ import QGroundControl.ScreenTools   1.0
 Flow {
     spacing: ScreenTools.defaultFontPixelWidth
 
+    /// true: Checking the first entry will clear and disable all other entries
+    property bool firstEntryIsAll: false
+
     property Fact fact: Fact { }
 
+    Component.onCompleted: {
+        if (firstEntryIsAll && repeater.itemAt(0).checked) {
+            for (var i=1; i<repeater.count; i++) {
+                var otherCheckbox = repeater.itemAt(i)
+                otherCheckbox.enabled = false
+            }
+        }
+    }
+
     Repeater {
-        model: fact.bitmaskStrings
+        id:     repeater
+        model:  fact.bitmaskStrings
 
         QGCCheckBox {
+            id:         checkbox
             text:       modelData
             checked:    fact.value & fact.bitmaskValues[index]
 
             onClicked: {
                 if (checked) {
+                    if (firstEntryIsAll && index == 0) {
+                        for (var i=1; i<repeater.count; i++) {
+                            var otherCheckbox = repeater.itemAt(i)
+                            fact.value &= ~fact.bitmaskValues[i]
+                            otherCheckbox.checked = false
+                            otherCheckbox.enabled = false
+                        }
+                    }
                     fact.value |= fact.bitmaskValues[index]
                 } else {
+                    if (firstEntryIsAll && index == 0) {
+                        for (var i=1; i<repeater.count; i++) {
+                            var otherCheckbox = repeater.itemAt(i)
+                            otherCheckbox.enabled = true
+                        }
+                    }
                     fact.value &= ~fact.bitmaskValues[index]
                 }
             }