Refactor KeyLogger to use a single FontManager instance for rendering text

key.py

@@ -13,6 +13,7 @@ class KeyLogger:
         self.window.show()
         self.running = True
         self.key_down = True
+        self.font = sdl2.ext.FontManager("assets/decterm.ttf", size=24)
 
     def run(self):
         # Main loop
@@ -34,10 +35,11 @@ class KeyLogger:
                     
             # Update the window
             sdl2.ext.fill(self.window.get_surface(), sdl2.ext.Color(0, 0, 0))
+            greeting = self.font.render("Press any key...", color=sdl2.ext.Color(255, 255, 255))
+            sdl2.SDL_BlitSurface(greeting, None, self.window.get_surface(), None)
             if hasattr(self, 'message'):
-                font = sdl2.ext.FontManager("assets/decterm.ttf", size=24)
+                text_surface = self.font.render(self.message, color=sdl2.ext.Color(255, 255, 255))
-                text_surface = font.render(self.message, color=sdl2.ext.Color(255, 255, 255))
+                sdl2.SDL_BlitSurface(text_surface, None, self.window.get_surface(), sdl2.SDL_Rect(0, 30, 640, 480))
-                sdl2.SDL_BlitSurface(text_surface, None, self.window.get_surface(), None)
             sdl2.SDL_UpdateWindowSurface(self.window.window)
             # Refresh the window