Issue #15 Classes for sharing the history of log messages

src/blackmisc/loghistory.cpp

@@ -0,0 +1,41 @@
+/* Copyright (C) 2020
+ * 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. 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
+
+#include "blackmisc/loghistory.h"
+#include "blackmisc/loghandler.h"
+
+namespace BlackMisc
+{
+    CLogHistory::CLogHistory(QObject *parent) : CListJournal(parent)
+    {
+    }
+
+    CLogHistorySource::CLogHistorySource(QObject *parent) : CListMutator(parent)
+    {
+        connect(CLogHandler::instance(), &CLogHandler::localMessageLogged, this, [this](auto&&... args)
+        {
+            this->addElement(args...);
+        });
+    }
+
+    CLogHistoryReplica::CLogHistoryReplica(QObject* parent) : CListObserver(parent)
+    {
+    }
+
+    void CLogHistoryReplica::onElementAdded(const CStatusMessage &msg)
+    {
+        emit elementAdded(msg);
+    }
+
+    void CLogHistoryReplica::onElementsReplaced(const CStatusMessageList &msgs)
+    {
+        emit elementsReplaced(msgs);
+    }
+}