Moved Merge subsystem into merge namespace.

glabels/Merge/Factory.cpp

@@ -0,0 +1,180 @@
+/*  Merge/Factory.cpp
+ *
+ *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Factory.h"
+
+#include "None.h"
+#include "TextCsv.h"
+
+
+namespace merge
+{
+
+	///
+	/// Static data
+	///
+	QMap<QString,Factory::BackendEntry> Factory::mBackendIdMap;
+	QMap<QString,Factory::BackendEntry> Factory::mBackendNameMap;
+
+
+	///
+	/// Constructor
+	///
+	Factory::Factory()
+	{
+		registerBackend( None::id(),
+				 tr("None"),
+				 NONE,
+				 &None::create );
+	
+		registerBackend( TextCsv::id(),
+				 tr("Text: Comma Separated Values (CSV)"),
+				 FILE,
+				 &TextCsv::create );
+	}
+
+
+	///
+	/// Initialize
+	///
+	void Factory::init()
+	{
+		static Factory* singletonInstance = 0;
+		if ( !singletonInstance )
+		{
+			singletonInstance = new Factory();
+		}
+	}
+
+
+	///
+	/// Create Merge object
+	///
+	Merge* Factory::createMerge( const QString& id )
+	{
+		QMap<QString,BackendEntry>::iterator iBackend = mBackendIdMap.find( id );
+		if ( iBackend != mBackendIdMap.end() )
+		{
+			return iBackend->create();
+		}
+	
+		return None::create();
+	}
+
+
+	///
+	/// Get name list
+	///
+	QStringList Factory::nameList()
+	{
+		QStringList list;
+	
+		foreach ( BackendEntry backend, mBackendIdMap )
+		{
+			list << backend.name;
+		}
+
+		return list;
+	}
+
+
+	///
+	/// Convert ID to name
+	///
+	QString Factory::idToName( const QString& id )
+	{
+		if ( mBackendIdMap.contains( id ) )
+		{
+			return mBackendIdMap[id].name;
+		}
+		else
+		{
+			return tr("None");
+		}
+	}
+
+
+	///
+	/// Convert name to ID
+	///
+	QString Factory::nameToId( const QString& name )
+	{
+		if ( mBackendNameMap.contains( name ) )
+		{
+			return mBackendNameMap[name].id;
+		}
+		else
+		{
+			return "None";
+		}
+	}
+
+
+	///
+	/// Convert ID to type
+	///
+	Factory::SourceType Factory::idToType( const QString& id )
+	{
+		if ( mBackendIdMap.contains( id ) )
+		{
+			return mBackendIdMap[id].type;
+		}
+		else
+		{
+			return NONE;
+		}
+	}
+
+
+	///
+	/// Lookup ID from index
+	///
+	QString Factory::indexToId( int index )
+	{
+		QList<QString> ids = mBackendIdMap.keys();
+
+		if ( (index > 0) && (index < ids.size()) )
+		{
+			return ids[index];
+		}
+
+		return "None";
+	}
+
+
+	///
+	/// Register backend
+	///
+	void Factory::registerBackend( const QString& id,
+				       const QString& name,
+				       SourceType     type,
+				       CreateFct      create )
+	{
+		BackendEntry backend;
+
+		backend.name   = name;
+		backend.type   = type;
+		backend.create = create;
+	
+		mBackendIdMap[ id ] = backend;
+	}
+
+}
+