downloads+parses json and displays systemtray icon

can be activated by a single click and shows the corresponding window.

1 files changed, 95 insertions, 0 deletions

diff --git a/mainwindow.cpp b/mainwindow.cpp
new file mode 100644
index 0000000..0dd8a3e
--- /dev/null
+++ b/mainwindow.cpp
@@ -0,0 +1,95 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include <QDebug>
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+
+{
+    ui->setupUi(this);
+
+    QIcon* icon = new QIcon("folder.png");
+    this->qsystemtrayicon = new QSystemTrayIcon(*icon, this);
+    this->setWindowIcon(*icon);
+
+    this->qsystemtrayicon->show();
+    this->qsystemtrayicon->setContextMenu(ui->menuMenu1);
+    //this->connect(this, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(systray_clicked(QSystemTrayIcon::ActivationReason)));
+    this->connect(qsystemtrayicon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(slotActivated(QSystemTrayIcon::ActivationReason)));
+
+    //this->qsystemtrayicon->installEventFilter(this);
+
+    //this->qsystemtrayicon->setIcon(this->windowIcon());
+    this->qsystemtrayicon->setToolTip(this->windowTitle());
+
+    QUrl url("http://hackerspace-bielefeld.de/spacestatus/status.json");
+    QByteArray rawData = this->download(url);
+    QJsonDocument doc = QJsonDocument::fromJson(rawData);
+    //qDebug() << rawData;
+    //qDebug() << doc.toJson(QJsonDocument::Compact);
+
+    QJsonObject json = doc.object();
+
+    QString strUrl;
+    if(json["state/open"].toBool())
+    {
+        strUrl = json["state"].toObject()["icon"].toObject()["open"].toString();
+        this->qsystemtrayicon->showMessage("Hackerspace Bielefeld", "Der Space ist nun geöffnet!");
+    }
+    else
+    {
+        strUrl = json["state"].toObject()["icon"].toObject()["closed"].toString();
+        this->qsystemtrayicon->showMessage("Hackerspace Bielefeld", "Der Space ist nun geschlossen!");
+    }
+
+    qDebug() << "downloading: " << strUrl;
+    QByteArray imageArray = this->download(QUrl(strUrl));
+    //qDebug("test: " + imageArray.size());
+    QImage image = QImage::fromData(imageArray);
+
+    this->currentIcon = new QIcon(QPixmap::fromImage(image));
+    this->setWindowIcon(*currentIcon);
+    this->qsystemtrayicon->setIcon(*currentIcon);
+    this->setWindowTitle("closed");
+
+    qDebug() << json["state", "open"];    
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+QByteArray MainWindow::download(QUrl url)
+{
+    QNetworkAccessManager manager;
+    QNetworkReply *response = manager.get(QNetworkRequest(QUrl(url)));
+    QEventLoop event;
+    connect(response,SIGNAL(finished()),&event,SLOT(quit()));
+    event.exec();
+
+    return response->readAll();
+}
+
+void MainWindow::slotActivated(QSystemTrayIcon::ActivationReason reason)
+{
+    if(reason == QSystemTrayIcon::Trigger)
+    {
+        qDebug() << "trigger";
+        this->setWindowState(Qt::WindowNoState);
+        this->show();
+        this->activateWindow();
+
+    }
+    else
+    {
+        qDebug() << "activate(reason): " << reason;
+    }
+}
+
+void MainWindow::exitApplication()
+{
+    qDebug() << "exit now!";
+    exit(0);
+}