80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
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/*
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* This file is part of the Micro Python 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) 2018 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-bindings/displayio/BuiltinFont.h"
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#include "shared-bindings/displayio/Glyph.h"
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#include "py/objnamedtuple.h"
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mp_obj_t common_hal_displayio_builtinfont_get_bitmap(const displayio_builtinfont_t *self) {
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return MP_OBJ_FROM_PTR(self->bitmap);
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}
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mp_obj_t common_hal_displayio_builtinfont_get_bounding_box(const displayio_builtinfont_t *self) {
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mp_obj_t *items = m_new(mp_obj_t, 2);
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items[0] = MP_OBJ_NEW_SMALL_INT(self->width);
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items[1] = MP_OBJ_NEW_SMALL_INT(self->height);
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return mp_obj_new_tuple(2, items);
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}
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uint8_t displayio_builtinfont_get_glyph_index(const displayio_builtinfont_t *self, mp_uint_t codepoint) {
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if (codepoint >= 0x20 && codepoint <= 0x7e) {
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return codepoint - 0x20;
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}
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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 (codepoint == potential_c) {
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return 0x7f - 0x20 + k;
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}
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k++;
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}
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return 0xff;
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}
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mp_obj_t common_hal_displayio_builtinfont_get_glyph(const displayio_builtinfont_t *self, mp_uint_t codepoint) {
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uint8_t glyph_index = displayio_builtinfont_get_glyph_index(self, codepoint);
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if (glyph_index == 0xff) {
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return mp_const_none;
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}
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mp_obj_t field_values[8] = {
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MP_OBJ_FROM_PTR(self->bitmap),
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MP_OBJ_NEW_SMALL_INT(glyph_index),
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MP_OBJ_NEW_SMALL_INT(self->width),
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MP_OBJ_NEW_SMALL_INT(self->height),
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MP_OBJ_NEW_SMALL_INT(0),
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MP_OBJ_NEW_SMALL_INT(0),
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MP_OBJ_NEW_SMALL_INT(self->width),
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MP_OBJ_NEW_SMALL_INT(0)
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};
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return namedtuple_make_new((const mp_obj_type_t*) &displayio_glyph_type, 8, field_values, NULL);
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}
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