Adjusted color gradient used in spectral display and some code cleanup.

src/controller/ConfigurationControllerModel.java

@@ -39,6 +39,8 @@ import source.tuner.TunerGroupNode;
 import source.tuner.TunerNode;
 import source.tuner.TunerSelectionListener;
 import controller.channel.Channel;
+import controller.channel.ChannelEvent;
+import controller.channel.ChannelEvent.Event;
 import controller.channel.ChannelNode;
 import controller.site.Site;
 import controller.system.System;
@@ -183,6 +185,7 @@ public class ConfigurationControllerModel extends DefaultTreeModel
     	SourceConfigTuner sourceConfig = new SourceConfigTuner();
     	sourceConfig.setFrequency( frequency );
     	channel.setSourceConfiguration( sourceConfig );
+    	mResourceManager.getChannelManager().channelChanged( new ChannelEvent( channel, Event.CHANNEL_ADDED ) );
     	channel.setEnabled( true, true );
     	site.addChannel( channel );
 

src/module/demodulate/fm/FMDemodulatorModule.java

@@ -133,7 +133,10 @@ public class FMDemodulatorModule extends Module implements IComplexBufferListene
 		mDemodulator.dispose();
 		mDemodulator = null;
 		
-		mDCRemovalFilter.dispose();
+		if( mDCRemovalFilter != null )
+		{
+			mDCRemovalFilter.dispose();
+		}
 		mDCRemovalFilter = null;
 		
 		if( mAutomaticFrequencyControl != null )

src/spectrum/ChannelSpectrumPanel.java

@@ -492,37 +492,4 @@ public class ChannelSpectrumPanel extends JPanel
 	{
 		mSpectrumPanel.setSmoothingType( type );
 	}
-
-	public class SampleAssembler implements RealSampleListener
-	{
-	    private Listener<ComplexBuffer> mListener;
-
-	    public SampleAssembler( Listener<ComplexBuffer> listener )
-		{
-	    	mListener = listener;
-		}
-
-		@Override
-	    public void receive( float sample )
-	    {
-			mSamples[ mSamplePointer++ ] = sample;
-
-			if( mSamplePointer >= mSamples.length )
-			{
-				if( mEnabled.get() )
-				{
-					float[] copy = Arrays.copyOf( mSamples, mSamples.length );
-					
-					mListener.receive( new ComplexBuffer( copy ) );
-				}
-				
-				mSamplePointer = 0;
-				
-				if( mSamples.length != mSampleBufferSize )
-				{
-					mSamples = new float[ mSampleBufferSize ];
-				}
-			}
-	    }
-	}
 }

src/spectrum/OverlayPanel.java

@@ -75,7 +75,7 @@ public class OverlayPanel extends JPanel
 	}
 	
 	private final static BasicStroke DASHED_STROKE = new BasicStroke(0.8f, 
-		BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 5.0f, new float[] {5.0f}, 0.0f);	
+		BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 5.0f, new float[] {2.0f, 4.0f}, 0.0f);	
 	
 	private static DecimalFormat CURSOR_FORMAT = new DecimalFormat( "000.00000" );
 	private long mFrequency = 0;
@@ -342,7 +342,7 @@ public class OverlayPanel extends JPanel
     {
     	Stroke currentStroke = graphics.getStroke();
     	
-    	graphics.setStroke( DASHED_STROKE );
+//    	graphics.setStroke( DASHED_STROKE );
 
     	long minFrequency = getMinDisplayFrequency();
     	long maxFrequency = getMaxDisplayFrequency();
@@ -352,6 +352,12 @@ public class OverlayPanel extends JPanel
     	int major = mLabelSizeMonitor.getMajorTickIncrement( graphics );
     	int minor = mLabelSizeMonitor.getMinorTickIncrement( graphics );
 
+    	//Avoid divide by zero error
+    	if( minor == 0 )
+    	{
+    		minor = 1;
+    	}
+    	
     	//Adjust the start frequency to a multiple of the minor tick spacing 
     	long frequency = minFrequency - ( minFrequency % minor );
     	
@@ -373,7 +379,7 @@ public class OverlayPanel extends JPanel
     		frequency += minor;
     	}
     	
-    	graphics.setStroke( currentStroke );
+//    	graphics.setStroke( currentStroke );
     }
     
     /**

src/spectrum/SpectrumPanel.java

@@ -189,7 +189,7 @@ public class SpectrumPanel extends JPanel
 
     	//Define the gradient
     	GradientPaint gradient = new GradientPaint( 0, 
-    												getSize().height / 4, 
+    												( getSize().height - mSpectrumInset ) / 2, 
     												mColorSpectrumGradientTop,
     												0,
     												getSize().height,