From 5b93aac1f802d0db838d3d12802f2863eb13e0f8 Mon Sep 17 00:00:00 2001
From: Thomas Vanbesien <tvanbesi@proton.me>
Date: Fri, 20 Feb 2026 11:08:27 +0100
Subject: Add nodeId and monitored properties to OpcUaMonitoredNode

---
 demo/NodePage.qml          | 19 +++++++++++++++----
 src/OpcUaMonitoredNode.cpp | 30 ++++++++++++++++++++++++++++++
 src/OpcUaMonitoredNode.h   | 16 ++++++++++++++++
 3 files changed, 61 insertions(+), 4 deletions(-)

diff --git a/demo/NodePage.qml b/demo/NodePage.qml
index bd57583..e00f468 100644
--- a/demo/NodePage.qml
+++ b/demo/NodePage.qml
@@ -1,4 +1,4 @@
-// NodePage.qml — Placeholder while OpcUaMonitoredNode is implemented.
+// NodePage.qml — Demo page with OpcUaMonitoredNode lifecycle logging.
 
 import QtQuick
 import QtQuick.Controls
@@ -12,6 +12,15 @@ Page {
     required property int pageNumber
     required property var logFunction
 
+    OpcUaMonitoredNode {
+        id: demoNode
+        nodeId: "ns=2;s=DemoVariable.Page" + nodePage.pageNumber
+        monitored: nodePage.StackView.status === StackView.Active
+        onMonitoredChanged: nodePage.logFunction(
+            "Page " + nodePage.pageNumber + " node [" + nodeId + "] "
+            + (monitored ? "MONITORED" : "UNMONITORED"))
+    }
+
     ColumnLayout {
         anchors.fill: parent
         anchors.margins: 20
@@ -31,9 +40,11 @@ Page {
         }
 
         Label {
-            text: "Node monitoring not yet available (OpcUaMonitoredNode in progress)"
-            font.italic: true
-            color: "gray"
+            text: "Node: " + demoNode.nodeId
+        }
+        Label {
+            text: "Monitored: " + demoNode.monitored
+            color: demoNode.monitored ? "green" : "gray"
         }
 
         Item { Layout.fillHeight: true }
diff --git a/src/OpcUaMonitoredNode.cpp b/src/OpcUaMonitoredNode.cpp
index da66e89..f7a5c9f 100644
--- a/src/OpcUaMonitoredNode.cpp
+++ b/src/OpcUaMonitoredNode.cpp
@@ -6,6 +6,36 @@
 
 OpcUaMonitoredNode::OpcUaMonitoredNode (QObject *parent) : QObject (parent) {}
 
+QString
+OpcUaMonitoredNode::nodeId () const
+{
+  return m_nodeId;
+}
+
+void
+OpcUaMonitoredNode::setNodeId (const QString &id)
+{
+  if (m_nodeId == id)
+    return;
+  m_nodeId = id;
+  emit nodeIdChanged ();
+}
+
+bool
+OpcUaMonitoredNode::monitored () const
+{
+  return m_monitored;
+}
+
+void
+OpcUaMonitoredNode::setMonitored (bool monitored)
+{
+  if (m_monitored == monitored)
+    return;
+  m_monitored = monitored;
+  emit monitoredChanged ();
+}
+
 void
 OpcUaMonitoredNode::classBegin ()
 {
diff --git a/src/OpcUaMonitoredNode.h b/src/OpcUaMonitoredNode.h
index ccf3444..9d093b5 100644
--- a/src/OpcUaMonitoredNode.h
+++ b/src/OpcUaMonitoredNode.h
@@ -18,13 +18,29 @@ class OpcUaMonitoredNode : public QObject, public QQmlParserStatus
   Q_INTERFACES (QQmlParserStatus)
   QML_ELEMENT
 
+  Q_PROPERTY (QString nodeId READ nodeId WRITE setNodeId NOTIFY nodeIdChanged)
+  Q_PROPERTY (
+      bool monitored READ monitored WRITE setMonitored NOTIFY monitoredChanged)
+
 public:
   explicit OpcUaMonitoredNode (QObject *parent = nullptr);
 
+  QString nodeId () const;
+  void setNodeId (const QString &id);
+
+  bool monitored () const;
+  void setMonitored (bool monitored);
+
   void classBegin () override;
   void componentComplete () override;
 
+signals:
+  void nodeIdChanged ();
+  void monitoredChanged ();
+
 private:
+  QString m_nodeId;
+  bool m_monitored = true;
   bool m_componentComplete = false;
 };
 
-- 
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