refs #335, renaming

* the term "components" will only be used for GUI components (derived from QWidget/ QWidget derived classes) fron now on
* timer, and enabler classes renamed accordingly: CEnableForRuntime, CEnableForDockWidgetInfoArea, CUpdateTimer
* adjusted all dependent classes

src/blackgui/components/updatetimer.h

@@ -0,0 +1,60 @@
+/* Copyright (C) 2013
+ * 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_UPDATETIMER_H
+#define BLACKGUI_UPDATETIMER_H
+
+#include <QTimer>
+#include <QDateTime>
+
+namespace BlackGui
+{
+    namespace Components
+    {
+        //! Timer used in components for updates
+        class CUpdateTimer: public QObject
+        {
+            Q_OBJECT
+
+        public:
+            //! Constructor
+            CUpdateTimer(const char *slot, QObject *parent);
+
+            //! Destructor
+            ~CUpdateTimer();
+
+            //! Date/time of 1/1/1970, used to init timestamp values as "outdated"
+            static const QDateTime &epoch()
+            {
+                static const QDateTime e = QDateTime::fromMSecsSinceEpoch(0);
+                return e;
+            }
+
+        public slots:
+            //! Update time, time < 100 stops updates
+            void setUpdateInterval(int milliSeconds);
+
+            //! Update time
+            void setUpdateIntervalSeconds(int seconds) { this->setUpdateInterval(1000 * seconds); }
+
+            //! Stop timer
+            void stopTimer() { this->setUpdateInterval(-1); this->m_timerSingleShot->stop(); }
+
+            //! Fire the timer straight away
+            void fireTimer();
+
+        private:
+            QTimer *m_timer = nullptr;           //!< periodically updating
+            QTimer *m_timerSingleShot = nullptr; //!< single update
+        };
+    }
+}
+#endif // guard