summaryrefslogtreecommitdiff
path: root/newgrf_text.c
blob: bcb462878ed25241b094f7b51530cdc8de12829a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
/* $Id$ */

/** @file
 * Implementation of  Action 04 "universal holder" structure and functions.
 * This file implements a linked-lists of strings,
 * holding everything that the newgrf action 04 will send over to OpenTTD.
 * One of the biggest problems is that Dynamic lang Array uses ISO codes
 * as way to identifying current user lang, while newgrf uses bit shift codes
 * not related to ISO.  So equivalence functionnality had to be set.
 */

#include "stdafx.h"
#include "debug.h"
#include "openttd.h"
#include "string.h"
#include "strings.h"
#include "variables.h"
#include "macros.h"
#include "table/strings.h"
#include "newgrf_text.h"
#include "table/control_codes.h"

#define GRFTAB  28
#define TABSIZE 11

/**
 * Explains the newgrf shift bit positionning.
 * the grf base will not be used in order to find the string, but rather for
 * jumping from standard langID scheme to the new one.
 */
typedef enum grf_base_languages {
	GRFLB_AMERICAN    = 0x01,
	GRFLB_ENGLISH     = 0x02,
	GRFLB_GERMAN      = 0x04,
	GRFLB_FRENCH      = 0x08,
	GRFLB_SPANISH     = 0x10,
	GRFLB_GENERIC     = 0x80,
} grf_base_language;

typedef enum grf_extended_languages {
	GRFLX_AMERICAN    = 0x00,
	GRFLX_ENGLISH     = 0x01,
	GRFLX_GERMAN      = 0x02,
	GRFLX_FRENCH      = 0x03,
	GRFLX_SPANISH     = 0x04,
	GRFLX_RUSSIAN     = 0x07,
	GRFLX_CZECH       = 0x15,
	GRFLX_SLOVAK      = 0x16,
	GRFLX_AFRIKAANS   = 0x1B,
	GRFLX_GREEK       = 0x1E,
	GRFLX_DUTCH       = 0x1F,
	GRFLX_CATALAN     = 0x22,
	GRFLX_HUNGARIAN   = 0x24,
	GRFLX_ITALIAN     = 0x27,
	GRFLX_ROMANIAN    = 0x28,
	GRFLX_ICELANDIC   = 0x29,
	GRFLX_LATVIAN     = 0x2A,
	GRFLX_LITHUANIAN  = 0x2B,
	GRFLX_SLOVENIAN   = 0x2C,
	GRFLX_DANISH      = 0x2D,
	GRFLX_SWEDISH     = 0x2E,
	GRFLX_NORWEGIAN   = 0x2F,
	GRFLX_POLISH      = 0x30,
	GRFLX_GALICIAN    = 0x31,
	GRFLX_FRISIAN     = 0x32,
	GRFLX_UKRAINIAN   = 0x33,
	GRFLX_ESTONIAN    = 0x34,
	GRFLX_FINNISH     = 0x35,
	GRFLX_PORTUGUESE  = 0x36,
	GRFLX_BRAZILIAN   = 0x37,
	GRFLX_CROATIAN    = 0x38,
	GRFLX_TURKISH     = 0x3E,
	GRFLX_UNSPECIFIED = 0x7F,
} grf_language;


typedef struct iso_grf {
	char code[6];
	byte grfLangID;
} iso_grf;

/**
 * ISO code VS NewGrf langID conversion array.
 * This array is used in two ways:
 * 1-its ISO part is matching OpenTTD dynamic language id
 *   with newgrf bit positionning language id
 * 2-its shift part is used to know what is the shift to
 *   watch for when inserting new strings, hence analysing newgrf langid
 */
const iso_grf iso_codes[] = {
	{"en_US", GRFLX_AMERICAN},
	{"en_GB", GRFLX_ENGLISH},
	{"de_DE", GRFLX_GERMAN},
	{"fr_FR", GRFLX_FRENCH},
	{"es_ES", GRFLX_SPANISH},
	{"af_ZA", GRFLX_AFRIKAANS},
	{"hr_HR", GRFLX_CROATIAN},
	{"cs_CS", GRFLX_CZECH},
	{"ca_ES", GRFLX_CATALAN},
	{"da_DA", GRFLX_DANISH},
	{"nl_NL", GRFLX_DUTCH},
	{"et_ET", GRFLX_ESTONIAN},
	{"fi_FI", GRFLX_FINNISH},
	{"fy_NL", GRFLX_FRISIAN},
	{"gl_ES", GRFLX_GALICIAN},
	{"el_GR", GRFLX_GREEK},
	{"hu_HU", GRFLX_HUNGARIAN},
	{"is_IS", GRFLX_ICELANDIC},
	{"it_IT", GRFLX_ITALIAN},
	{"lv_LV", GRFLX_LATVIAN},
	{"lt_LT", GRFLX_LITHUANIAN},
	{"nb_NO", GRFLX_NORWEGIAN},
	{"pl_PL", GRFLX_POLISH},
	{"pt_PT", GRFLX_PORTUGUESE},
	{"pt_BR", GRFLX_BRAZILIAN},
	{"ro_RO", GRFLX_ROMANIAN},
	{"ru_RU", GRFLX_RUSSIAN},
	{"sk_SK", GRFLX_SLOVAK},
	{"sl_SL", GRFLX_SLOVENIAN},
	{"sv_SE", GRFLX_SWEDISH},
	{"tr_TR", GRFLX_TURKISH},
	{"uk_UA", GRFLX_UKRAINIAN},
	{"gen",   GRFLB_GENERIC}   //this is not iso code, but there has to be something...
};


/**
 * Element of the linked list.
 * Each of those elements represent the string,
 * but according to a different lang.
 */
typedef struct GRFText {
	struct GRFText *next;
	byte langid;
	char text[VARARRAY_SIZE];
} GRFText;


/**
 * Holder of the above structure.
 * Putting both grfid and stringid together allows us to avoid duplicates,
 * since it is NOT SUPPOSED to happen.
 */
typedef struct GRFTextEntry {
	uint32 grfid;
	uint16 stringid;
	StringID def_string;
	GRFText *textholder;
} GRFTextEntry;


static uint _num_grf_texts = 0;
static GRFTextEntry _grf_text[(1 << TABSIZE) * 3];
static byte _currentLangID = GRFLX_ENGLISH;  //by default, english is used.


char *TranslateTTDPatchCodes(const char *str)
{
	char *tmp = malloc(strlen(str) * 10 + 1); /* Allocate space to allow for expansion */
	char *d = tmp;
	bool unicode = false;
	WChar c;
	size_t len = Utf8Decode(&c, str);

	if (c == 0x00DE) {
		/* The thorn ('รพ') indicates a unicode string to TTDPatch */
		unicode = true;
		str += len;
	}

	for (;;) {
		const char *tmp = str; /* Used for UTF-8 decoding */

		c = (byte)*str++;
		if (c == 0) break;

		switch (c) {
			case 0x01:
				d += Utf8Encode(d, SCC_SETX);
				*d++ = *str++;
				break;
			case 0x0D: *d++ = 10; break;
			case 0x0E: d += Utf8Encode(d, SCC_TINYFONT); break;
			case 0x0F: d += Utf8Encode(d, SCC_BIGFONT); break;
			case 0x1F:
				d += Utf8Encode(d, SCC_SETXY);
				*d++ = *str++;
				*d++ = *str++;
				break;
			case 0x7B:
			case 0x7C:
			case 0x7D:
			case 0x7E: d += Utf8Encode(d, SCC_NUM); break;
			case 0x7F: d += Utf8Encode(d, SCC_CURRENCY); break;
			case 0x80: d += Utf8Encode(d, SCC_STRING); break;
			case 0x81: {
				StringID string;
				string  = *str++;
				string |= *str++ << 8;
				d += Utf8Encode(d, SCC_STRING_ID);
				d += Utf8Encode(d, string);
				break;
			}
			case 0x82: d += Utf8Encode(d, SCC_DATE_TINY); break;
			case 0x83: d += Utf8Encode(d, SCC_DATE_SHORT); break;
			case 0x84: d += Utf8Encode(d, SCC_VELOCITY); break;
			case 0x85: d += Utf8Encode(d, SCC_SKIP);    break;
			case 0x86: /* "Rotate down top 4 words on stack" */ break;
			case 0x87: d += Utf8Encode(d, SCC_VOLUME);  break;
			case 0x88: d += Utf8Encode(d, SCC_BLUE);    break;
			case 0x89: d += Utf8Encode(d, SCC_SILVER);  break;
			case 0x8A: d += Utf8Encode(d, SCC_GOLD);    break;
			case 0x8B: d += Utf8Encode(d, SCC_RED);     break;
			case 0x8C: d += Utf8Encode(d, SCC_PURPLE);  break;
			case 0x8D: d += Utf8Encode(d, SCC_LTBROWN); break;
			case 0x8E: d += Utf8Encode(d, SCC_ORANGE);  break;
			case 0x8F: d += Utf8Encode(d, SCC_GREEN);   break;
			case 0x90: d += Utf8Encode(d, SCC_YELLOW);  break;
			case 0x91: d += Utf8Encode(d, SCC_DKGREEN); break;
			case 0x92: d += Utf8Encode(d, SCC_CREAM);   break;
			case 0x93: d += Utf8Encode(d, SCC_BROWN);   break;
			case 0x94: d += Utf8Encode(d, SCC_WHITE);   break;
			case 0x95: d += Utf8Encode(d, SCC_LTBLUE);  break;
			case 0x96: d += Utf8Encode(d, SCC_GRAY);    break;
			case 0x97: d += Utf8Encode(d, SCC_DKBLUE);  break;
			case 0x98: d += Utf8Encode(d, SCC_BLACK);   break;
			case 0x9E: d += Utf8Encode(d, 0x20AC); break; // Euro
			case 0x9F: d += Utf8Encode(d, 0x0178); break; // Y with diaeresis
			case 0xA0: d += Utf8Encode(d, SCC_UPARROW); break;
			case 0xAA: d += Utf8Encode(d, SCC_DOWNARROW); break;
			case 0xAC: d += Utf8Encode(d, SCC_CHECKMARK); break;
			case 0xAD: d += Utf8Encode(d, SCC_CROSS); break;
			case 0xAF: d += Utf8Encode(d, SCC_RIGHTARROW); break;
			case 0xB4: d += Utf8Encode(d, SCC_TRAIN); break;
			case 0xB5: d += Utf8Encode(d, SCC_LORRY); break;
			case 0xB6: d += Utf8Encode(d, SCC_BUS); break;
			case 0xB7: d += Utf8Encode(d, SCC_PLANE); break;
			case 0xB8: d += Utf8Encode(d, SCC_SHIP); break;
			default:
				if (unicode) {
					d += Utf8Encode(d, Utf8Consume(&tmp));
					str = tmp;
					break;
				}

				/* Validate any unhandled character */
				if (!IsValidChar(c, CS_ALPHANUMERAL)) c = '?';
				d += Utf8Encode(d, c);
				break;
		}
	}

	*d = '\0';
	return realloc(tmp, strlen(tmp) + 1);
}


/**
 * Add the new read string into our structure.
 */
StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, bool new_scheme, const char *text_to_add, StringID def_string)
{
	char *translatedtext;
	GRFText *newtext;
	uint id;

	/* When working with the old language scheme (grf_version is less than 7) and
	 * English or American is among the set bits, simply add it as English in
	 * the new scheme, i.e. as langid = 1.
	 * If English is set, it is pretty safe to assume the translations are not
	 * actually translated.
	 */
	if (!new_scheme) {
		if (HASBITS(langid_to_add, GRFLB_AMERICAN | GRFLB_ENGLISH)) {
			langid_to_add = GRFLX_ENGLISH;
		} else {
			StringID ret = STR_EMPTY;
			if (langid_to_add & GRFLB_GERMAN)  ret = AddGRFString(grfid, stringid, GRFLX_GERMAN,  true, text_to_add, def_string);
			if (langid_to_add & GRFLB_FRENCH)  ret = AddGRFString(grfid, stringid, GRFLX_FRENCH,  true, text_to_add, def_string);
			if (langid_to_add & GRFLB_SPANISH) ret = AddGRFString(grfid, stringid, GRFLX_SPANISH, true, text_to_add, def_string);
			return ret;
		}
	}

	for (id = 0; id < _num_grf_texts; id++) {
		if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
			break;
		}
	}

	/* Too many strings allocated, return empty */
	if (id == lengthof(_grf_text)) return STR_EMPTY;

	translatedtext = TranslateTTDPatchCodes(text_to_add);

	newtext = malloc(sizeof(*newtext) + strlen(translatedtext) + 1);
	newtext->next   = NULL;
	newtext->langid = langid_to_add;
	strcpy(newtext->text, translatedtext);

	free(translatedtext);

	/* If we didn't find our stringid and grfid in the list, allocate a new id */
	if (id == _num_grf_texts) _num_grf_texts++;

	if (_grf_text[id].textholder == NULL) {
		_grf_text[id].grfid      = grfid;
		_grf_text[id].stringid   = stringid;
		_grf_text[id].def_string = def_string;
		_grf_text[id].textholder = newtext;
	} else {
		GRFText **ptext, *text;
		bool replaced = false;

		/* Loop through all languages and see if we can replace a string */
		for (ptext = &_grf_text[id].textholder; (text = *ptext) != NULL; ptext = &text->next) {
			if (text->langid != langid_to_add) continue;
			newtext->next = text->next;
			*ptext = newtext;
			free(text);
			replaced = true;
			break;
		}

		/* If a string wasn't replaced, then we must append the new string */
		if (!replaced) *ptext = newtext;
	}

	DEBUG(grf, 2)("Added 0x%X: grfid 0x%X string 0x%X lang 0x%X string %s", id, grfid, stringid, newtext->langid, newtext->text);

	return (GRFTAB << TABSIZE) + id;
}

/* Used to remember the grfid that the last retrieved string came from */
static uint32 _last_grfid = 0;

/**
 * Returns the index for this stringid associated with its grfID
 */
StringID GetGRFStringID(uint32 grfid, uint16 stringid)
{
	uint id;

	/* grfid is zero when we're being called via an include */
	if (grfid == 0) grfid = _last_grfid;

	for (id = 0; id < _num_grf_texts; id++) {
		if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
			return (GRFTAB << TABSIZE) + id;
		}
	}

	return STR_UNDEFINED;
}


char *GetGRFString(char *buff, uint16 stringid, const char* last)
{
	const GRFText *default_text = NULL;
	const GRFText *search_text;

	assert(_grf_text[stringid].grfid != 0);

	/* Remember this grfid in case the string has included text */
	_last_grfid = _grf_text[stringid].grfid;

	/*Search the list of lang-strings of this stringid for current lang */
	for (search_text = _grf_text[stringid].textholder; search_text != NULL; search_text = search_text->next) {
		if (search_text->langid == _currentLangID) {
			return strecpy(buff, search_text->text, last);
		}

		/* If the current string is English or American, set it as the
		 * fallback language if the specific language isn't available. */
		if (search_text->langid == GRFLX_UNSPECIFIED || (default_text == NULL && (search_text->langid == GRFLX_ENGLISH || search_text->langid == GRFLX_AMERICAN))) {
			default_text = search_text;
		}
	}

	/* If there is a fallback string, return that */
	if (default_text != NULL) return strecpy(buff, default_text->text, last);

	/* Use the default string ID if the fallback string isn't available */
	return GetString(buff, _grf_text[stringid].def_string, last);
}

/**
 * Equivalence Setter function between game and newgrf langID.
 * This function will adjust _currentLangID as to what is the LangID
 * of the current language set by the user.
 * The array iso_codes will be used to find that match.
 * If not found, it will have to be standard english
 * This function is called after the user changed language,
 * from strings.c:ReadLanguagePack
 * @param iso code of current selection
 */
void SetCurrentGrfLangID(const char *iso_name)
{
	/* Use English by default, if we can't match up the iso_code. */
	byte ret = GRFLX_ENGLISH;
	byte i;

	for (i=0; i < lengthof(iso_codes); i++) {
		if (strncmp(iso_codes[i].code, iso_name, strlen(iso_codes[i].code)) == 0) {
			/* We found a match, so let's use it. */
			ret = i;
			break;
		}
	}
	_currentLangID = ret;
}

/**
 * House cleaning.
 * Remove all strings and reset the text counter.
 */
void CleanUpStrings(void)
{
	uint id;

	for (id = 0; id < _num_grf_texts; id++) {
		GRFText *grftext = _grf_text[id].textholder;
		while (grftext != NULL) {
			GRFText *grftext2 = grftext->next;
			free(grftext);
			grftext = grftext2;
		}
		_grf_text[id].grfid      = 0;
		_grf_text[id].stringid   = 0;
		_grf_text[id].textholder = NULL;
	}

	_num_grf_texts = 0;
}