diff options
| -rw-r--r-- | shared-module/terminalio/Terminal.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/shared-module/terminalio/Terminal.c b/shared-module/terminalio/Terminal.c index 4589c9149..eb8b27208 100644 --- a/shared-module/terminalio/Terminal.c +++ b/shared-module/terminalio/Terminal.c @@ -93,6 +93,39 @@ size_t common_hal_terminalio_terminal_write(terminalio_terminal_obj_t *self, con self->cursor_x -= n; } } + if (c == 'J') { + if (n == 2) { + common_hal_displayio_tilegrid_set_top_left(self->tilegrid, 0, 0); + self->cursor_x = self->cursor_y = start_y = 0; + n = 0; + for (uint16_t x = 0; x < self->tilegrid->width_in_tiles; x++) { + for (uint16_t y = 0; y < self->tilegrid->height_in_tiles; y++) { + common_hal_displayio_tilegrid_set_tile(self->tilegrid, x, y, 0); + } + } + } + } + if (c == ';') { + int16_t m = 0; + for(++j; j < 9; j++) { + if ('0' <= i[j] && i[j] <= '9') { + m = m * 10 + (i[j] - '0'); + } else { + c = i[j]; + break; + } + } + if (c == 'H') { + if (n >= self->tilegrid->height_in_tiles) + n = self->tilegrid->height_in_tiles - 1; + if (m >= self->tilegrid->width_in_tiles) + m = self->tilegrid->width_in_tiles - 1; + n = (n + self->tilegrid->top_left_y) % self->tilegrid->height_in_tiles; + self->cursor_x = m; + self->cursor_y = n; + start_y = self->cursor_y; + } + } i += j + 1; continue; } @@ -114,12 +147,14 @@ size_t common_hal_terminalio_terminal_write(terminalio_terminal_obj_t *self, con self->cursor_y %= self->tilegrid->height_in_tiles; } if (self->cursor_y != start_y) { - // clear the new row + // clear the new row in case of scroll up + if (self->cursor_y == self->tilegrid->top_left_y) { for (uint16_t j = 0; j < self->tilegrid->width_in_tiles; j++) { common_hal_displayio_tilegrid_set_tile(self->tilegrid, j, self->cursor_y, 0); - start_y = self->cursor_y; } - common_hal_displayio_tilegrid_set_top_left(self->tilegrid, 0, (start_y + self->tilegrid->height_in_tiles + 1) % self->tilegrid->height_in_tiles); + common_hal_displayio_tilegrid_set_top_left(self->tilegrid, 0, (self->cursor_y + self->tilegrid->height_in_tiles + 1) % self->tilegrid->height_in_tiles); + } + start_y = self->cursor_y; } } return i - data; |