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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
readonly property var currentPage: pages[pageNumber - 1]
required property var logFunction
required property int pageNumber
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": []
}
]
// OPC UA ServerState enum (Part 4, Table 120).
readonly property var serverStates: ["Running", "Failed", "NoConfiguration",
"Suspended", "Shutdown", "Test", "CommunicationFault", "Unknown"]
required property StackView stackRef
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 {
font.bold: true
font.pointSize: 14
text: currentPage.title
}
Label {
color: "gray"
text: "(" + nodePage.pageNumber + "/" + nodePage.pages.length
+ ")"
}
Item {
Layout.fillWidth: true
}
Button {
text: "Disconnect"
onClicked: Bobink.disconnectFromServer()
}
}
Label {
id: pageDescription
Layout.fillWidth: true
color: "gray"
font.italic: true
text: currentPage.description || ""
visible: currentPage.description !== undefined
wrapMode: Text.WordWrap
}
// Column headers
RowLayout {
Layout.fillWidth: true
Layout.leftMargin: 12
Layout.rightMargin: 12
spacing: 12
Label {
Layout.preferredWidth: 160
font.bold: true
text: "Identifier"
}
Label {
Layout.preferredWidth: 300
font.bold: true
text: "Value"
}
Label {
Layout.fillWidth: true
font.bold: true
text: "Write"
}
}
Rectangle {
id: separator
Layout.fillWidth: true
color: "#ccc"
height: 1
}
// Nodes
Repeater {
model: currentPage.nodes
ItemDelegate {
id: delegate
required property int index
required property string modelData
Layout.fillWidth: true
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()
|| "—")
ToolTip.visible: hovered
leftPadding: 12
padding: 4
rightPadding: 12
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 {
Layout.preferredWidth: 160
elide: Text.ElideRight
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;
}
}
// Column 2: Live value (always visible)
Label {
Layout.preferredWidth: 300
elide: Text.ElideRight
text: nodePage.formatValue(node)
}
// Column 3: Edit area (writable) or READ-ONLY label
// Normal write controls (non-index-range pages)
TextField {
id: editField
Layout.fillWidth: true
placeholderText: "Enter value..."
visible: node.writable && !currentPage.indexRange
onAccepted: node.writeValue(text)
}
Button {
text: "Write"
visible: node.writable && !currentPage.indexRange
onClicked: node.writeValue(editField.text)
}
// Index range write controls
TextField {
id: rangeField
Layout.preferredWidth: 60
placeholderText: "Range"
visible: node.writable && currentPage.indexRange
=== true
}
TextField {
id: rangeValueField
Layout.fillWidth: true
placeholderText: "Value(s)..."
visible: node.writable && currentPage.indexRange
=== true
onAccepted: node.writeValueAtRange(text,
rangeField.text)
}
Button {
text: "Write Range"
visible: node.writable && currentPage.indexRange
=== true
onClicked: node.writeValueAtRange(rangeValueField.text,
rangeField.text)
}
Label {
Layout.fillWidth: true
color: "gray"
font.italic: true
text: "(READ-ONLY)"
visible: !node.writable
}
}
OpcUaMonitoredNode {
id: node
monitored: nodePage.StackView.status === StackView.Active
nodeId: delegate.modelData
onWriteCompleted: (success, message) => {
var short_id = node.nodeId.substring(
node.nodeId.indexOf(";s=") + 3);
nodePage.logFunction(short_id + ": "
+ message);
}
}
}
}
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
})
}
}
}
}
|
