| 1005 | */ |
| 1006 | |
| 1007 | short |
| 1008 | scroll_tty(WindowPtr window, short delta_x, short delta_y) |
| 1009 | { |
| 1010 | RgnHandle rgn; |
| 1011 | short s_err; |
| 1012 | RECORD_EXISTS(record); |
| 1013 | |
| 1014 | s_err = update_tty(window); |
| 1015 | |
| 1016 | rgn = NewRgn(); |
| 1017 | |
| 1018 | select_offscreen_port(record); |
| 1019 | ScrollRect(&(record->its_bits.bounds), -delta_x * record->char_width, |
| 1020 | -delta_y * record->row_height, rgn); |
| 1021 | EraseRgn(rgn); |
| 1022 | SetEmptyRgn(rgn); |
| 1023 | |
| 1024 | select_onscreen_window(record); |
| 1025 | ScrollRect(&(record->its_bits.bounds), -delta_x * record->char_width, |
| 1026 | -delta_y * record->row_height, rgn); |
| 1027 | EraseRgn(rgn); |
| 1028 | DisposeRgn(rgn); |
| 1029 | |
| 1030 | record->y_curs -= delta_y; |
| 1031 | record->x_curs -= delta_x; |
| 1032 | |
| 1033 | return noErr; |
| 1034 | } |
| 1035 | |
| 1036 | /* |
| 1037 | * Clear the screen. Immediate. |
no test coverage detected