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++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "subscriptionwindow.h"
++ #include "ui_subscriptionwindow.h"
++
++ using namespace Qt::StringLiterals;
++
++ SubscriptionWindow::SubscriptionWindow(QMqttSubscription *sub, QWidget *parent) :
++ QWidget(parent),
++ ui(new Ui::SubscriptionWindow),
++ m_sub(sub)
++ {
++ ui->setupUi(this);
++
++ ui->labelSub->setText(m_sub->topic().filter());
++ ui->labelQoS->setText(QString::number(m_sub->qos()));
++ updateStatus(m_sub->state());
++ connect(m_sub, &QMqttSubscription::messageReceived, this, &SubscriptionWindow::updateMessage);
++ connect(m_sub, &QMqttSubscription::stateChanged, this, &SubscriptionWindow::updateStatus);
++ connect(m_sub, &QMqttSubscription::qosChanged, [this](quint8 qos) {
++ ui->labelQoS->setText(QString::number(qos));
++ });
++ connect(ui->pushButton, &QAbstractButton::clicked, m_sub, &QMqttSubscription::unsubscribe);
++ }
++
++ SubscriptionWindow::~SubscriptionWindow()
++ {
++ m_sub->unsubscribe();
++ delete ui;
++ }
++
++ void SubscriptionWindow::updateMessage(const QMqttMessage &msg)
++ {
++ ui->listWidget->addItem(msg.payload());
++ }
++
++ void SubscriptionWindow::updateStatus(QMqttSubscription::SubscriptionState state)
++ {
++ switch (state) {
++ case QMqttSubscription::Unsubscribed:
++ ui->labelStatus->setText(u"Unsubscribed"_s);
++ break;
++ case QMqttSubscription::SubscriptionPending:
++ ui->labelStatus->setText(u"Pending"_s);
++ break;
++ case QMqttSubscription::Subscribed:
++ ui->labelStatus->setText(u"Subscribed"_s);
++ break;
++ case QMqttSubscription::Error:
++ ui->labelStatus->setText(u"Error"_s);
++ break;
++ case QMqttSubscription::UnsubscriptionPending:
++ ui->labelStatus->setText(u"Pending Unsubscription"_s);
++ break;
++ default:
++ ui->labelStatus->setText(u"--Unknown--"_s);
++ break;
++ }
++ }