Include a virtual destructor in Renderer base class.

Author: j-evins

glbarcode/Renderer.cpp

@@ -23,6 +23,11 @@
 #include "DrawingPrimitives.h"
 
 
+glbarcode::Renderer::~Renderer()
+{
+}
+
+
 void glbarcode::Renderer::render( double w, double h, const std::list<DrawingPrimitive*>& primitives )
 {
 	drawBegin( w, h );

glbarcode/Renderer.h

@@ -47,6 +47,12 @@ namespace glbarcode
 	class Renderer : public gbcRenderer
 	{
 	public:
+		/**
+		 * Destructor.
+		 */
+		virtual ~Renderer();
+
+
 		/**
 		 * Render list of primitives.
 		 *