IQ recording file playback partial checkin.

NOTE: only the gui components and settings handling have been implemented.  Actual recording playback is not yet implemented.

Partial checkin of initial P25 decoder development.  

NOTE: P25 decoder is not yet functional.

src/source/recording/RecordingGroupNode.java

@@ -0,0 +1,91 @@
+/*******************************************************************************
+ *     SDR Trunk 
+ *     Copyright (C) 2014 Dennis Sheirer
+ * 
+ *     This program 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.
+ * 
+ *     This program 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 this program.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+package source.recording;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.List;
+
+import javax.swing.JMenuItem;
+import javax.swing.JPopupMenu;
+
+import controller.BaseNode;
+
+public class RecordingGroupNode extends BaseNode
+{
+    private static final long serialVersionUID = 1L;
+
+    public RecordingGroupNode()
+	{
+        super( null );
+	}
+    
+    public String toString()
+    {
+    	return "Recordings [" + this.getChildCount() + "]";
+    }
+
+	public JPopupMenu getContextMenu()
+	{
+		JPopupMenu menu = new JPopupMenu();
+		
+		JMenuItem addRecordingItem = new JMenuItem( "Add Recording" );
+		
+		addRecordingItem.addActionListener( new ActionListener() 
+		{
+			@Override
+            public void actionPerformed( ActionEvent e )
+            {
+				RecordingConfiguration config = new RecordingConfiguration();
+				
+				getModel().getResourceManager().getSettingsManager()
+								.addRecordingConfiguration( config );
+				
+				Recording recording = getModel().getResourceManager()
+						.getRecordingSourceManager().addRecording( config );
+				
+				RecordingNode node = new RecordingNode( recording );
+				
+				getModel().addNode( node, RecordingGroupNode.this, 0 );
+				
+				sort();
+				
+				node.show();
+            }
+		} );
+		
+		menu.add( addRecordingItem );
+		
+		return menu;
+	}
+	
+	public void loadRecordings()
+	{
+		List<Recording> recordings = getModel().getResourceManager()
+				.getRecordingSourceManager().getRecordings();
+		
+		for( Recording recording: recordings )
+		{
+			RecordingNode node = new RecordingNode( recording );
+			
+			getModel().addNode( node, this, 0 );
+		}
+		
+		sort();
+	}
+}