refs #452 status bar for web reading

* status of load requests
* is swift DB available?

src/blackgui/components/infobarwebreadersstatuscomponent.h

@@ -0,0 +1,72 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_INFOBARWEBREADERSSTATUSCOMPONENT_H
+#define BLACKGUI_INFOBARWEBREADERSSTATUSCOMPONENT_H
+
+#include "blackgui/blackguiexport.h"
+#include "blackgui/led.h"
+#include "blackmisc/network/webdataservicesprovider.h"
+#include <QFrame>
+#include <QScopedPointer>
+#include <QTimer>
+
+namespace Ui { class CInfoBarWebReadersStatusComponent; }
+namespace BlackGui
+{
+    namespace Components
+    {
+        //! Info bar displaying status of web readers(swift DB, ...)
+        class BLACKGUI_EXPORT CInfoBarWebReadersStatusComponent :
+            public QFrame,
+            public BlackMisc::Network::CWebDataServicesAware
+        {
+            Q_OBJECT
+
+        public:
+            //! Constructor
+            explicit CInfoBarWebReadersStatusComponent(QWidget *parent = nullptr);
+
+            //!Destructor
+            ~CInfoBarWebReadersStatusComponent();
+
+            //! Init the LEDs
+            void initLeds();
+
+            //! Set the provider
+            virtual void setProvider(BlackMisc::Network::IWebDataServicesProvider *webDataReaderProvider) override;
+
+        private slots:
+            //! Data have been read
+            void ps_dataRead(BlackMisc::Network::CDbFlags::Entity entity, BlackMisc::Network::CDbFlags::ReadState readState, int count);
+
+            //! Check server status
+            void ps_checkServerAndData();
+
+        private:
+            QScopedPointer<Ui::CInfoBarWebReadersStatusComponent> ui;
+            QTimer m_timer { this };
+
+            //! Set LED states
+            void setLedReadStates(const QList<CLedWidget *> &leds, BlackMisc::Network::CDbFlags::ReadState readState);
+
+            //! Set the LED read state
+            void setLedReadState(CLedWidget *led, BlackMisc::Network::CDbFlags::ReadState readState);
+
+            //! Maps entity to its id
+            QList<CLedWidget *> entityToLeds(BlackMisc::Network::CDbFlags::Entity entity) const;
+
+            //! All data read
+            bool hasAllData() const;
+        };
+    }
+}
+#endif // guard