Fix dialogs accessibility

Author: CrSjimo

src/plugins/coreplugin/qml/dialogs/EditLoopDialog.qml

@@ -29,19 +29,25 @@ Dialog {
             onClicked: dialog.loopEnabled = checked
         }
         Label {
+            id: startPositionLabel
             text: qsTr("Start position")
         }
         MusicTimeSpinBox {
+            Accessible.labelledBy: startPositionLabel
+            Accessible.name: startPositionLabel.text
             Layout.fillWidth: true
             timeline: dialog.timeline
             value: dialog.startPosition
             to: dialog.endPosition - 1
             onValueModified: dialog.startPosition = value
         }
         Label {
+            id: endPositionLabel
             text: qsTr("End position")
         }
         MusicTimeSpinBox {
+            Accessible.labelledBy: endPositionLabel
+            Accessible.name: endPositionLabel.text
             Layout.fillWidth: true
             timeline: dialog.timeline
             value: dialog.endPosition

src/plugins/coreplugin/qml/dialogs/EditTempoDialog.qml

@@ -23,9 +23,12 @@ Dialog {
         anchors.fill: parent
         columns: 2
         Label {
+            id: tempoLabel
             text: qsTr("Tempo")
         }
         SpinBox {
+            Accessible.labelledBy: tempoLabel
+            Accessible.name: tempoLabel.text
             Layout.fillWidth: true
             readonly property int decimals: 2
             from: 10 * Math.pow(10, decimals)
@@ -46,9 +49,12 @@ Dialog {
             }
         }
         Label {
+            id: positionLabel
             text: qsTr("Position")
         }
         MusicTimeSpinBox {
+            Accessible.labelledBy: positionLabel
+            Accessible.name: positionLabel.text
             Layout.fillWidth: true
             timeline: dialog.timeline
             value: dialog.position

src/plugins/coreplugin/qml/dialogs/EditTimeSignatureDialog.qml

@@ -24,6 +24,7 @@ Dialog {
         anchors.fill: parent
         columns: 2
         Label {
+            id: timeSignatureLabel
             text: qsTr("Time signature")
         }
         RowLayout {
@@ -55,9 +56,12 @@ Dialog {
             }
         }
         Label {
+            id: positionLabel
             text: qsTr("Position")
         }
         MusicTimeSpinBox {
+            Accessible.labelledBy: positionLabel
+            Accessible.name: positionLabel.text
             Layout.fillWidth: true
             timeline: dialog.timeline
             value: dialog.position