| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include <private/opcualiteraloperand_p.h> |
| 5 | |
| 6 | QT_BEGIN_NAMESPACE |
| 7 | |
| 8 | /*! |
| 9 | \qmltype LiteralOperand |
| 10 | \inqmlmodule QtOpcUa |
| 11 | \brief The OPC UA LiteralOperand type. |
| 12 | \since QtOpcUa 5.13 |
| 13 | |
| 14 | The LiteralOperand is defined in OPC UA 1.05 part 4, 7.7.4.3. |
| 15 | It contains a literal value that is to be used as operand for filters. |
| 16 | |
| 17 | Setting the type should be done to match the expected types on the server. |
| 18 | Otherwise the type will be guessed and may lead to errors because it does |
| 19 | not match on the server. |
| 20 | |
| 21 | \code |
| 22 | import QtOpcUa as QtOpcUa |
| 23 | |
| 24 | QtOpcUa.LiteralOperand { |
| 25 | value: 43.21 |
| 26 | type: QtOpcUa.Constants.Double |
| 27 | } |
| 28 | \endcode |
| 29 | */ |
| 30 | |
| 31 | /*! |
| 32 | \qmlproperty QOpcUa.Types LiteralOperand::type |
| 33 | |
| 34 | Type of the value of the literal operand. |
| 35 | */ |
| 36 | |
| 37 | /*! |
| 38 | \qmlproperty variant LiteralOperand::value |
| 39 | |
| 40 | Value of the literal operand. |
| 41 | */ |
| 42 | |
| 43 | OpcUaLiteralOperand::OpcUaLiteralOperand(QObject *parent) |
| 44 | : OpcUaOperandBase(parent) |
| 45 | , m_type(QOpcUa::Undefined) |
| 46 | { |
| 47 | } |
| 48 | |
| 49 | OpcUaLiteralOperand::~OpcUaLiteralOperand() = default; |
| 50 | |
| 51 | QVariant OpcUaLiteralOperand::toCppVariant(QOpcUaClient *client) const |
| 52 | { |
| 53 | Q_UNUSED(client); |
| 54 | return QOpcUaLiteralOperand(m_value, m_type); |
| 55 | } |
| 56 | |
| 57 | QVariant OpcUaLiteralOperand::value() const |
| 58 | { |
| 59 | return m_value; |
| 60 | } |
| 61 | |
| 62 | void OpcUaLiteralOperand::setValue(const QVariant &value) |
| 63 | { |
| 64 | if (m_value != value) { |
| 65 | m_value = value; |
| 66 | emit dataChanged(); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | QOpcUa::Types OpcUaLiteralOperand::type() const |
| 71 | { |
| 72 | return m_type; |
| 73 | } |
| 74 | |
| 75 | void OpcUaLiteralOperand::setType(QOpcUa::Types type) |
| 76 | { |
| 77 | if (m_type != type) { |
| 78 | m_type = type; |
| 79 | emit dataChanged(); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | QT_END_NAMESPACE |
| 84 |