83 lines
3.3 KiB
C
83 lines
3.3 KiB
C
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "shared-module/terminalio/Terminal.h"
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#include "shared-bindings/displayio/TileGrid.h"
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void common_hal_terminalio_terminal_construct(terminalio_terminal_obj_t *self, displayio_tilegrid_t* tilegrid, uint8_t* unicode_characters, uint16_t unicode_characters_len) {
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self->cursor_x = 0;
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self->cursor_y = 0;
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self->tilegrid = tilegrid;
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self->unicode_characters = unicode_characters;
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self->unicode_characters_len = unicode_characters_len;
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}
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size_t common_hal_terminalio_terminal_write(terminalio_terminal_obj_t *self, const byte *data, size_t len, int *errcode) {
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const byte* i = data;
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while (i < data + len) {
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unichar c = utf8_get_char(i);
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i = utf8_next_char(i);
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// Always handle ASCII.
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if (c < 128) {
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if (c >= 0x20 && c <= 0x7e) {
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common_hal_displayio_textgrid_set_tile(self->tilegrid, self->cursor_x, self->cursor_y, c - 0x20);
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self->cursor_x++;
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}
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if (c == '\r') {
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self->cursor_x = 0;
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} else if (c == '\n') {
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self->cursor_y++;
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}
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} else {
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// Do a linear search of the mapping for unicode.
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const byte* j = self->unicode_characters;
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uint8_t k = 0;
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while (j < self->unicode_characters + self->unicode_characters_len) {
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unichar potential_c = utf8_get_char(j);
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j = utf8_next_char(j);
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if (c == potential_c) {
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common_hal_displayio_textgrid_set_tile(self->tilegrid, self->cursor_x, self->cursor_y, 0x7f - 0x20 + k);
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self->cursor_x++;
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break;
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}
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}
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}
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if (self->cursor_x >= self->tilegrid->width_in_tiles) {
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self->cursor_y++;
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self->cursor_x %= self->tilegrid->width_in_tiles;
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}
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if (self->cursor_y >= self->tilegrid->height_in_tiles) {
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self->cursor_y %= self->tilegrid->height_in_tiles;
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}
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}
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return i - data;
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}
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bool common_hal_terminalio_terminal_ready_to_tx(terminalio_terminal_obj_t *self) {
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return true;
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}
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