osd for volume and brightness

modules/OsdState.qml

@@ -0,0 +1,20 @@
+pragma Singleton
+import QtQuick
+
+QtObject {
+    property bool visible: false
+    property real value: 0      // 0.0–1.0
+    property string icon: ""
+
+    property Timer _timer: Timer {
+        interval: 1500
+        onTriggered: visible = false
+    }
+
+    function show(val, ico) {
+        value = val;
+        icon = ico;
+        visible = true;
+        _timer.restart();
+    }
+}