This routine aims to print the given Text as close to the centre of the Window as possible. In fact, it tries to print the middle line closest to the vertical centre of the Window and the middle character in each line the closest to the horizontal centre of the Window.

Examples

Window.PrintCenter("some multiline\ntext\nin the centre of the window")

             The middle columns
                    ||
                    vv
+----------------------------------------+
|                                        |
|                                        |
|             some multiline             |
|                  text                  |<-The middle row
|      in the centre of the window       |
|                                        |
|                                        |
+----------------------------------------+

The border on the example above is for guidance only.