forked from mirrors/qmk_firmware
cd9262d7b2
* Remove unused UNICODE(n) macro, update docs * Add note about max length of unicode_map to docs * QK_UNICODE_MAP → QK_UNICODEMAP * Refactor process_unicode_map * process_unicode_map → process_unicodemap This is done for consistency: UNICODEMAP is the method (hence UNICODEMAP_ENABLE, process_unicodemap), whereas unicode_map is the mapping table itself. * Update references and ordering in docs/understanding_qmk * Add additional note to docs/understanding_qmk * &unicode_map[index] → unicode_map + index This avoids the issue of the compiler sometimes complaining about the array index being out of range * Update docs/getting_started_make_guide * Update method sections in docs/feature_unicode
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* Copyright 2017 Jack Humbert
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "process_unicodemap.h"
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#include "process_unicode_common.h"
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__attribute__((weak))
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const uint32_t PROGMEM unicode_map[] = {};
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void register_hex32(uint32_t hex) {
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bool onzerostart = true;
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for(int i = 7; i >= 0; i--) {
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if (i <= 3) {
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onzerostart = false;
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}
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uint8_t digit = ((hex >> (i*4)) & 0xF);
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if (digit == 0) {
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if (!onzerostart) {
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register_code(hex_to_keycode(digit));
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unregister_code(hex_to_keycode(digit));
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}
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} else {
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register_code(hex_to_keycode(digit));
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unregister_code(hex_to_keycode(digit));
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onzerostart = false;
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}
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}
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}
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__attribute__((weak))
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void unicodemap_input_error() {}
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bool process_unicodemap(uint16_t keycode, keyrecord_t *record) {
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if ((keycode & QK_UNICODEMAP) == QK_UNICODEMAP && record->event.pressed) {
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uint16_t index = keycode - QK_UNICODEMAP;
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uint32_t code = pgm_read_dword(unicode_map + index);
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uint8_t input_mode = get_unicode_input_mode();
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if (code > 0xFFFF && code <= 0x10FFFF && input_mode == UC_OSX) {
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// Convert to UTF-16 surrogate pair
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code -= 0x10000;
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uint32_t lo = code & 0x3FF, hi = (code & 0xFFC00) >> 10;
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unicode_input_start();
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register_hex32(hi + 0xD800);
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register_hex32(lo + 0xDC00);
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unicode_input_finish();
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} else if ((code > 0x10FFFF && input_mode == UC_OSX) || (code > 0xFFFFF && input_mode == UC_LNX)) {
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// Character is out of range supported by the OS
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unicodemap_input_error();
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} else {
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unicode_input_start();
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register_hex32(code);
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unicode_input_finish();
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}
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}
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return true;
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}
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