2 * texteditor_characterstate.h
4 * Copyright (c) 2013 project bchan
6 * This software is provided 'as-is', without any express or implied
7 * warranty. In no event will the authors be held liable for any damages
8 * arising from the use of this software.
10 * Permission is granted to anyone to use this software for any purpose,
11 * including commercial applications, and to alter it and redistribute it
12 * freely, subject to the following restrictions:
14 * 1. The origin of this software must not be misrepresented; you must not
15 * claim that you wrote the original software. If you use this software
16 * in a product, an acknowledgment in the product documentation would be
17 * appreciated but is not required.
19 * 2. Altered source versions must be plainly marked as such, and must not be
20 * misrepresented as being the original software.
22 * 3. This notice may not be removed or altered from any source
27 #include "texteditor_characterstate.h"
31 #include <tad/tadfragment.h>
32 #include <tad/tadlangcode.h>
34 #ifdef BCHAN_CONFIG_DEBUG
35 # define DP(arg) printf arg
36 # define DP_ER(msg, err) printf("%s (%d/%x)\n", msg, err>>16, err)
39 # define DP_ER(msg, err) /**/
42 EXPORT W texteditor_charactorstate_input(texteditor_characterstate_t *state, tadfragment_cursor_segment *segment)
48 if (segment->type == TADFRAGMENT_CURSOR_SEGMENTTYPE_VARIABLE) {
49 if (segment->len != 10) {
52 segid = *(TC*)segment->p & 0xFF;
53 if (segid != TS_TFONT) {
56 subid = *(TC*)(segment->p + 4) >> 8;
60 state->w_ratio = *(RATIO*)(segment->p + 8);
61 } else if (segment->type == TADFRAGMENT_CURSOR_SEGMENTTYPE_LANGCODE) {
62 str = (TC*)segment->p;
63 len = segment->len / sizeof(TC);
64 err = TCtotadlangcode(str, len, &state->lang);
72 EXPORT Bool texteditor_characterstate_ishankaku(texteditor_characterstate_t *state)
76 ratio_a = state->w_ratio >> 8;
77 ratio_b = state->w_ratio & 0xFF;
78 if ((ratio_a * 2 > ratio_b)||(ratio_b == 0)) {
85 EXPORT W texteditor_characterstate_getlang(texteditor_characterstate_t *state, TC *str, W len)
87 return tadlangcodetoTC(&state->lang, str, len);
90 EXPORT VOID texteditor_characterstate_getlangcode(texteditor_characterstate_t *state, tadlangcode *lang)
95 EXPORT Bool texteditor_characterstate_islang(texteditor_characterstate_t *state, TC *str, W len)
97 return tadlangcodecmpTC(str, len, &state->lang);
100 EXPORT VOID texteditor_characterstate_initialize(texteditor_characterstate_t *state)
102 state->w_ratio = 0x0101;
103 state->lang.iter = 0;
104 state->lang.code = 0x21; // system script
107 EXPORT VOID texteditor_characterstate_finalize(texteditor_characterstate_t *state)