downloads+parses json and displays systemtray icon

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

6 files changed, 248 insertions, 0 deletions

diff --git a/folder.png b/folder.png
new file mode 100644
index 0000000..b472e50
--- /dev/null
+++ b/folder.png
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..74e1a60
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,10 @@
+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setQuitOnLastWindowClosed(false);
+    MainWindow w;
+    return a.exec();
+}
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);
+}
diff --git a/mainwindow.h b/mainwindow.h
new file mode 100644
index 0000000..11c1616
--- /dev/null
+++ b/mainwindow.h
@@ -0,0 +1,44 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QSystemTrayIcon>
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QByteArray>
+
+
+#include <QString>
+#include <QObject>
+
+#include <QtNetwork/QNetworkAccessManager>
+#include <QtNetwork/QNetworkRequest>
+#include <QtNetwork/QNetworkReply>
+
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+    QSystemTrayIcon* qsystemtrayicon;
+    QByteArray download(QUrl url);
+    QIcon* currentIcon;
+
+private slots:
+    void slotActivated(QSystemTrayIcon::ActivationReason);
+    void exitApplication();
+
+};
+
+#endif // MAINWINDOW_H
diff --git a/mainwindow.ui b/mainwindow.ui
new file mode 100644
index 0000000..812bddc
--- /dev/null
+++ b/mainwindow.ui
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>646</width>
+    <height>486</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>folder.png</normaloff>folder.png</iconset>
+  </property>
+  <widget class="QWidget" name="centralWidget"/>
+  <widget class="QMenuBar" name="menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>646</width>
+     <height>29</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuMenu1">
+    <property name="title">
+     <string>menu1</string>
+    </property>
+    <addaction name="actionExit"/>
+   </widget>
+   <addaction name="menuMenu1"/>
+  </widget>
+  <widget class="QToolBar" name="mainToolBar">
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+  <widget class="QStatusBar" name="statusBar"/>
+  <action name="actionExit">
+   <property name="text">
+    <string>exit</string>
+   </property>
+  </action>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>actionExit</sender>
+   <signal>triggered()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>exitApplication()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>322</x>
+     <y>242</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>exitApplication()</slot>
+ </slots>
+</ui>
diff --git a/qtapp.pro b/qtapp.pro
new file mode 100644
index 0000000..db84b23
--- /dev/null
+++ b/qtapp.pro
@@ -0,0 +1,23 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2015-11-17T21:16:22
+#
+#-------------------------------------------------
+
+QT       += core gui network
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = qtapp
+TEMPLATE = app
+
+
+SOURCES += main.cpp\
+        mainwindow.cpp
+
+HEADERS  += mainwindow.h
+
+FORMS    += mainwindow.ui
+
+DISTFILES += \
+    folder.png