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+// NodePage.qml — Displays 10 OPC UA nodes per page with tooltips.
+
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import Bobink
+
+Page {
+ id: nodePage
+
+ required property StackView stackRef
+ required property int pageNumber
+ required property var logFunction
+
+ readonly property var pages: [
+ {
+ title: "Server Info",
+ description: "Standard OPC UA server nodes (namespace 0)."
+ + " CurrentTime updates live via monitoring.",
+ nodes: [
+ "ns=0;i=2258", // CurrentTime
+ "ns=0;i=2257", // StartTime
+ "ns=0;i=2259", // State
+ "ns=0;i=2261", // ProductName
+ "ns=0;i=2264" // SoftwareVersion
+ ]
+ },
+ {
+ title: "Read-Write Scalars",
+ description: "Single-value nodes with read and write access.",
+ nodes: [
+ "ns=1;s=bool_rw_scalar",
+ "ns=1;s=int16_rw_scalar",
+ "ns=1;s=uint16_rw_scalar",
+ "ns=1;s=int32_rw_scalar",
+ "ns=1;s=uint32_rw_scalar",
+ "ns=1;s=int64_rw_scalar",
+ "ns=1;s=uint64_rw_scalar",
+ "ns=1;s=float_rw_scalar",
+ "ns=1;s=double_rw_scalar",
+ "ns=1;s=string_rw_scalar",
+ "ns=1;s=sbyte_rw_scalar",
+ "ns=1;s=byte_rw_scalar",
+ "ns=1;s=datetime_rw_scalar",
+ "ns=1;s=guid_rw_scalar",
+ "ns=1;s=bytestring_rw_scalar"
+ ]
+ },
+ {
+ title: "Read-Only Scalars",
+ description: "Single-value nodes with read-only access.",
+ nodes: [
+ "ns=1;s=bool_ro_scalar",
+ "ns=1;s=int16_ro_scalar",
+ "ns=1;s=uint16_ro_scalar",
+ "ns=1;s=int32_ro_scalar",
+ "ns=1;s=uint32_ro_scalar",
+ "ns=1;s=int64_ro_scalar",
+ "ns=1;s=uint64_ro_scalar",
+ "ns=1;s=float_ro_scalar",
+ "ns=1;s=double_ro_scalar",
+ "ns=1;s=string_ro_scalar",
+ "ns=1;s=sbyte_ro_scalar",
+ "ns=1;s=byte_ro_scalar",
+ "ns=1;s=datetime_ro_scalar",
+ "ns=1;s=guid_ro_scalar",
+ "ns=1;s=bytestring_ro_scalar"
+ ]
+ },
+ {
+ title: "Read-Write Arrays",
+ description: "Array nodes. Values are displayed comma-separated."
+ + " To write, enter comma-separated values (e.g. \"1, 2, 3\")."
+ + " Commas cannot appear inside individual values.",
+ nodes: [
+ "ns=1;s=bool_rw_array",
+ "ns=1;s=int16_rw_array",
+ "ns=1;s=uint16_rw_array",
+ "ns=1;s=int32_rw_array",
+ "ns=1;s=uint32_rw_array",
+ "ns=1;s=int64_rw_array",
+ "ns=1;s=uint64_rw_array",
+ "ns=1;s=float_rw_array",
+ "ns=1;s=double_rw_array",
+ "ns=1;s=string_rw_array",
+ "ns=1;s=sbyte_rw_array",
+ "ns=1;s=byte_rw_array",
+ "ns=1;s=datetime_rw_array",
+ "ns=1;s=guid_rw_array",
+ "ns=1;s=bytestring_rw_array"
+ ]
+ },
+ {
+ title: "Index Range Write",
+ description: "Write to specific array elements using OPC UA index"
+ + " range syntax. Examples: \"0\" = first element,"
+ + " \"0:2\" = elements 0–2. Enter the range and the value(s)"
+ + " to write (comma-separated for multi-element ranges).",
+ indexRange: true,
+ nodes: [
+ "ns=1;s=int32_rw_array",
+ "ns=1;s=float_rw_array",
+ "ns=1;s=string_rw_array"
+ ]
+ },
+ {
+ title: "Non-Existent Nodes",
+ description: "These node IDs do not exist on the server."
+ + " The row should show no value and no metadata in the tooltip.",
+ nodes: [
+ "ns=1;s=does_not_exist",
+ "ns=99;i=12345",
+ "ns=1;s=also_missing"
+ ]
+ },
+ {
+ title: "Empty (Monitoring Test)",
+ description: "No nodes on this page. All previous pages are inactive,"
+ + " so the server log should show zero active monitored items.",
+ nodes: []
+ }
+ ]
+
+ readonly property var currentPage: pages[pageNumber - 1]
+
+ // OPC UA ServerState enum (Part 4, Table 120).
+ readonly property var serverStates: [
+ "Running", "Failed", "NoConfiguration", "Suspended",
+ "Shutdown", "Test", "CommunicationFault", "Unknown"
+ ]
+
+ function formatValue(node) {
+ var v = node.value;
+ if (v === undefined || String(v) === "")
+ return "—";
+ // Map ServerState enum to human-readable string.
+ if (node.nodeId === "ns=0;i=2259" && !isNaN(v))
+ return serverStates[v] || String(v);
+ return String(v);
+ }
+
+ Component.onCompleted: nodePage.logFunction(
+ currentPage.title + " page loaded (" + currentPage.nodes.length + " nodes)")
+
+ ColumnLayout {
+ anchors.fill: parent
+ anchors.margins: 20
+ spacing: 4
+
+ // Header
+ RowLayout {
+ Label {
+ text: currentPage.title
+ font.bold: true
+ font.pointSize: 14
+ }
+ Label {
+ text: "(" + nodePage.pageNumber + "/" + nodePage.pages.length + ")"
+ color: "gray"
+ }
+ Item { Layout.fillWidth: true }
+ Button {
+ text: "Disconnect"
+ onClicked: Bobink.disconnectFromServer()
+ }
+ }
+
+ Label {
+ id: pageDescription
+ visible: currentPage.description !== undefined
+ text: currentPage.description || ""
+ wrapMode: Text.WordWrap
+ color: "gray"
+ font.italic: true
+ Layout.fillWidth: true
+ }
+
+ // Column headers
+ RowLayout {
+ Layout.fillWidth: true
+ Layout.leftMargin: 12
+ Layout.rightMargin: 12
+ spacing: 12
+ Label {
+ text: "Identifier"
+ font.bold: true
+ Layout.preferredWidth: 160
+ }
+ Label {
+ text: "Value"
+ font.bold: true
+ Layout.preferredWidth: 300
+ }
+ Label {
+ text: "Write"
+ font.bold: true
+ Layout.fillWidth: true
+ }
+ }
+
+ Rectangle {
+ id: separator
+ Layout.fillWidth: true
+ height: 1
+ color: "#ccc"
+ }
+
+ // Nodes
+ Repeater {
+ model: currentPage.nodes
+
+ ItemDelegate {
+ id: delegate
+ required property string modelData
+ required property int index
+ Layout.fillWidth: true
+ padding: 4
+ leftPadding: 12
+ rightPadding: 12
+
+ OpcUaMonitoredNode {
+ id: node
+ nodeId: delegate.modelData
+ monitored: nodePage.StackView.status === StackView.Active
+ onWriteCompleted: (success, message) => {
+ var short_id = node.nodeId.substring(node.nodeId.indexOf(";s=") + 3);
+ nodePage.logFunction(short_id + ": " + message);
+ }
+ }
+
+ background: Rectangle {
+ color: delegate.index % 2 === 0 ? "#f8f8f8" : "transparent"
+ radius: 2
+ }
+
+ contentItem: RowLayout {
+ spacing: 12
+
+ // Column 1: Display name if available, otherwise short ID.
+ Label {
+ text: {
+ if (node.info.displayName)
+ return node.info.displayName;
+ var idx = node.nodeId.indexOf(";s=");
+ return idx >= 0 ? node.nodeId.substring(idx + 3) : node.nodeId;
+ }
+ Layout.preferredWidth: 160
+ elide: Text.ElideRight
+ }
+
+ // Column 2: Live value (always visible)
+ Label {
+ text: nodePage.formatValue(node)
+ Layout.preferredWidth: 300
+ elide: Text.ElideRight
+ }
+
+ // Column 3: Edit area (writable) or READ-ONLY label
+
+ // Normal write controls (non-index-range pages)
+ TextField {
+ id: editField
+ visible: node.writable && !currentPage.indexRange
+ Layout.fillWidth: true
+ placeholderText: "Enter value..."
+ onAccepted: node.writeValue(text)
+ }
+ Button {
+ visible: node.writable && !currentPage.indexRange
+ text: "Write"
+ onClicked: node.writeValue(editField.text)
+ }
+
+ // Index range write controls
+ TextField {
+ id: rangeField
+ visible: node.writable && currentPage.indexRange === true
+ Layout.preferredWidth: 60
+ placeholderText: "Range"
+ }
+ TextField {
+ id: rangeValueField
+ visible: node.writable && currentPage.indexRange === true
+ Layout.fillWidth: true
+ placeholderText: "Value(s)..."
+ onAccepted: node.writeValueAtRange(text, rangeField.text)
+ }
+ Button {
+ visible: node.writable && currentPage.indexRange === true
+ text: "Write Range"
+ onClicked: node.writeValueAtRange(rangeValueField.text, rangeField.text)
+ }
+
+ Label {
+ visible: !node.writable
+ text: "(READ-ONLY)"
+ color: "gray"
+ font.italic: true
+ Layout.fillWidth: true
+ }
+ }
+
+ ToolTip.visible: hovered
+ ToolTip.delay: 400
+ ToolTip.text:
+ "Display Name: " + (node.info.displayName || "—")
+ + "\nDescription: " + (node.info.description || "—")
+ + "\nNode Class: " + (node.info.nodeClass || "—")
+ + "\nData Type: " + (node.info.dataType || "—")
+ + "\nValue Rank: " + (node.info.valueRank || "—")
+ + "\nArray Dimensions: " + (node.info.arrayDimensions || "—")
+ + "\nAccess Level: " + node.info.accessLevel
+ + "\nStatus: " + (node.info.status || "—")
+ + "\nSource Time: " + (node.info.sourceTimestamp.toLocaleString() || "—")
+ + "\nServer Time: " + (node.info.serverTimestamp.toLocaleString() || "—")
+ }
+ }
+
+ Item { Layout.fillHeight: true }
+
+ // Navigation
+ RowLayout {
+ Layout.fillWidth: true
+ Button {
+ text: "← Previous"
+ visible: nodePage.pageNumber > 1
+ onClicked: nodePage.stackRef.pop()
+ }
+ Item { Layout.fillWidth: true }
+ Button {
+ text: "Next →"
+ visible: nodePage.pageNumber < nodePage.pages.length
+ onClicked: nodePage.stackRef.push("NodePage.qml", {
+ stackRef: nodePage.stackRef,
+ pageNumber: nodePage.pageNumber + 1,
+ logFunction: nodePage.logFunction
+ })
+ }
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-16 14:31:12 +0000