add another btgui test

btgui/OpenGLWindow/MacOpenGLWindow.h

@@ -0,0 +1,86 @@
+#ifndef MAC_OPENGL_WINDOW_H
+#define MAC_OPENGL_WINDOW_H
+
+#include "btgWindowInterface.h"
+
+#define btgDefaultOpenGLWindow MacOpenGLWindow
+
+class MacOpenGLWindow : public btgWindowInterface
+{
+    struct MacOpenGLWindowInternalData* m_internalData;
+    float m_mouseX;
+    float m_mouseY;
+
+   
+    btMouseButtonCallback m_mouseButtonCallback;
+    btMouseMoveCallback m_mouseMoveCallback;
+    btWheelCallback m_wheelCallback;
+    btKeyboardCallback m_keyboardCallback;
+	btRenderCallback m_renderCallback;
+	
+    float m_retinaScaleFactor;
+public:
+    
+    MacOpenGLWindow();
+    virtual ~MacOpenGLWindow();
+    
+    void init(int width, int height, const char* windowTitle);
+
+    void closeWindow();
+    
+    void startRendering();
+    
+    void endRendering();//swap buffers
+    
+  	virtual bool	requestedExit() const;
+
+	virtual	void	setRequestExit();
+    
+    void getMouseCoordinates(int& x, int& y);
+    
+    void runMainLoop();
+    
+    void setMouseButtonCallback(btMouseButtonCallback	mouseCallback)
+    {
+        m_mouseButtonCallback = mouseCallback;
+    }
+
+    void setMouseMoveCallback(btMouseMoveCallback	mouseCallback)
+    {
+        m_mouseMoveCallback = mouseCallback;
+    }
+    
+    void setResizeCallback(btResizeCallback resizeCallback);
+    
+	void setKeyboardCallback( btKeyboardCallback	keyboardCallback)
+    {
+        m_keyboardCallback = keyboardCallback;
+    }
+    
+    void setWheelCallback (btWheelCallback wheelCallback)
+    {
+        m_wheelCallback = wheelCallback;
+    }
+
+    float getRetinaScale() const
+    {
+        return m_retinaScaleFactor;
+    }
+	
+	virtual	void	createWindow(const btgWindowConstructionInfo& ci);
+	
+	virtual	float	getTimeInSeconds();
+	
+
+	
+	virtual void setRenderCallback( btRenderCallback renderCallback);
+	
+	virtual void setWindowTitle(const char* title);
+
+	
+
+};
+
+
+#endif
+