def display_context(self, screen, context): # clipping according to screen geometry x, y, width, height = screen.geometry glViewport(x, y, width, height) glMatrixMode(GL_PROJECTION) glLoadIdentity() glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) glOrtho(x, x + width, y, y + height, -1, 1) glMatrixMode(GL_MODELVIEW) GraphicEngine.display_context(self, screen, context)
