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diff --git a/sample/telemetry-cloud-app/app/mainwindow.cpp b/sample/telemetry-cloud-app/app/mainwindow.cpp
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+/*
+ * Copyright (C) 2020 MERA
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include <QDebug>
+
+#include <unistd.h>
+#include <sys/stat.h>
+#include <nlohmann/json.hpp>
+
+
+#include <libcloudproxy.h>
+extern CloudProxyClient* g_cloudproxyclient;
+
+
+MainWindow::MainWindow(double scale_factor, QWidget *parent) :
+ QMainWindow(parent),
+ ui(new Ui::MainWindow)
+{
+ ui->setupUi(scale_factor, this);
+
+ //AGL style
+ setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint);
+ this->setStyleSheet(
+ "background-image:url(:/images/AGL_HMI_Blue_Background_NoCar-01.png) 0 0 0 0 stretch stretch; background: transparent;" );
+}
+
+void MainWindow::updateState(QVariant recvMsg)
+{
+ if (!recvMsg.isValid())
+ return;
+
+ // expected format: {"message": "bla-bla"}
+ std::string cloud_msg;
+ try
+ {
+ const std::string& msg = recvMsg.toString().toStdString();
+ if (msg.empty())
+ {
+ qDebug() << "Received message is empty";
+ }
+ else
+ {
+ const nlohmann::json& jmsg = nlohmann::json::parse(msg);
+ cloud_msg = jmsg["message"].get<std::string>();
+ }
+ }
+ catch (std::exception& ex)
+ {
+ qDebug() << "Can't parse incomming message: " << ex.what();
+ }
+
+ QString str = QString::asprintf("Cloud info: %s", cloud_msg.c_str());
+ ui->stateLabel->setText(str);
+}
+
+void MainWindow::startMsgButtonClick()
+{
+ qDebug() << "MainWindow::startMsgButtonClick()";
+
+ if (started)
+ ui->startMsgButton->setText("Start");
+ else
+ ui->startMsgButton->setText("Stop");
+ started = !started;
+
+ if (worker)
+ {
+ worker->stop();
+ worker.reset();
+ qDebug() << "Worker destroyed";
+ }
+
+ if (started)
+ {
+ worker.reset(new TelemetryWorker(g_cloudproxyclient, this));
+ connect(worker.get(), SIGNAL(timeout()), worker.get(), SLOT(send()));
+ worker->start(1001);
+ }
+}
+
+
+MainWindow::~MainWindow()
+{
+ delete ui;
+}