Adds message filtering, message history clear, and message history size features to the 'Messages' tab. Filter window dynamically constructs a list of filters from the primary filter and each of the auxiliary filters enabled within the currently selected/enabled processing channel.

src/filter/Filter.java

@@ -0,0 +1,55 @@
+package filter;
+
+import java.util.List;
+
+public abstract class Filter<T> implements IFilter<T>
+{
+	protected String mName;
+	protected boolean mEnabled = true;
+	
+	public Filter( String name )
+	{
+		mName = name;
+	}
+
+	/**
+	 * Indicates if this filter is enabled or disabled 
+	 */
+	public boolean isEnabled()
+	{
+		return mEnabled;
+	}
+
+	/**
+	 * Enables (true) or disables (false) this filter.  An enabled filter will
+	 * evaluate messages and a disabled filter will return false on all message
+	 * test methods.
+	 */
+	public void setEnabled( boolean enabled )
+	{
+		mEnabled = enabled;
+	}
+	
+	/**
+	 * List of filter elements managed by this filter
+	 */
+	public abstract List<FilterElement<?>> getFilterElements();
+
+	/**
+	 * Name of this filter
+	 */
+	public String getName()
+	{
+		return mName;
+	}
+	
+	public void setName( String name )
+	{
+		mName = name;
+	}
+	
+	public String toString()
+	{
+		return mName;
+	}
+}