Converted frequency to long primitive type (from integer) in anticipation of HackRF support which requires frequencies greater than 2.147 GHz, which is the max hertz value that can be represented by an integer primitive.

src/spectrum/OverlayPanel.java

@@ -53,7 +53,7 @@ public class OverlayPanel extends JPanel
 	
 	private static DecimalFormat sFORMAT = new DecimalFormat( "000.000" );
 	private static DecimalFormat sCURSOR_FORMAT = new DecimalFormat( "000.00000" );
-	private int mFrequency = 0;
+	private long mFrequency = 0;
 	private int mBandwidth = 0;
 	private Point mCursorLocation = new Point( 0, 0 );
 	private boolean mCursorVisible = false;
@@ -239,13 +239,13 @@ public class OverlayPanel extends JPanel
      */
     private void drawFrequencies( Graphics2D graphics )
     {
-    	int minFrequency = getMinFrequency();
-    	int maxFrequency = getMaxFrequency();
+    	long minFrequency = getMinFrequency();
+    	long maxFrequency = getMaxFrequency();
 
 //TODO: the increment should be changeable according to the overall bandwidth
 //   	so that when we move to higher sample rates, the display reacts accordingly
 
-    	int frequency;
+    	long frequency;
     	
     	if( mBandwidth < 200000 )
     	{
@@ -280,7 +280,7 @@ public class OverlayPanel extends JPanel
     /**
      * Draws a vertical line and a corresponding frequency label at the bottom
      */
-    private void drawFrequencyLineAndLabel( Graphics2D graphics, int frequency )
+    private void drawFrequencyLineAndLabel( Graphics2D graphics, long frequency )
     {
     	float xAxis = getAxisFromFrequency( frequency );
     	
@@ -305,12 +305,12 @@ public class OverlayPanel extends JPanel
     /**
      * Returns the x-axis value corresponding to the frequency
      */
-    public float getAxisFromFrequency( int frequency )
+    public float getAxisFromFrequency( long frequency )
     {
     	float canvasMiddle = (float)getSize().getWidth() / 2;
 
     	//Determine frequency offset from middle
-    	int frequencyOffset = mFrequency - frequency;
+    	long frequencyOffset = mFrequency - frequency;
 
     	//Determine ratio of offset to bandwidth
     	float ratio = (float)frequencyOffset / (float)mBandwidth;
@@ -325,7 +325,7 @@ public class OverlayPanel extends JPanel
     /**
      * Returns the frequency corresponding to the x-axis value
      */
-    public int getFrequencyFromAxis( double xAxis )
+    public long getFrequencyFromAxis( double xAxis )
     {
     	float width = (float)getSize().getWidth();
     	
@@ -339,7 +339,7 @@ public class OverlayPanel extends JPanel
      */
     private void drawFrequencyLabel( Graphics2D graphics, 
     								 float xaxis,
-    								 int frequency )
+    								 long frequency )
     {
     	String label = sFORMAT.format( (float)frequency / 1000000.0f );
     	
@@ -483,7 +483,7 @@ public class OverlayPanel extends JPanel
      * Frequency change event handler
      */
 	@Override
-    public void frequencyChanged( int frequency, int bandwidth )
+    public void frequencyChanged( long frequency, int bandwidth )
     {
 		mBandwidth = bandwidth;
 		mFrequency = frequency;
@@ -493,8 +493,8 @@ public class OverlayPanel extends JPanel
 		 */
 		mVisibleChannels.clear();
 
-		int minimum = getMinFrequency();
-		int maximum = getMaxFrequency();
+		long minimum = getMinFrequency();
+		long maximum = getMaxFrequency();
 		
 		for( Channel channel: mChannels )
 		{
@@ -545,7 +545,7 @@ public class OverlayPanel extends JPanel
 	/**
 	 * Currently displayed minimum frequency
 	 */
-	private int getMinFrequency()
+	private long getMinFrequency()
 	{
 		return mFrequency - ( mBandwidth / 2 );
 	}
@@ -553,7 +553,7 @@ public class OverlayPanel extends JPanel
 	/**
 	 * Currently displayed maximum frequency
 	 */
-	private int getMaxFrequency()
+	private long getMaxFrequency()
 	{
 		return mFrequency + ( mBandwidth / 2 );
 	}
@@ -562,7 +562,7 @@ public class OverlayPanel extends JPanel
 	 * Returns a list of channel configs that contain the frequency within their
 	 * min/max frequency settings.
 	 */
-	public ArrayList<Channel> getChannelsAtFrequency( int frequency )
+	public ArrayList<Channel> getChannelsAtFrequency( long frequency )
 	{
 		ArrayList<Channel> configs = new ArrayList<Channel>();