(svn r27724) -Cleanup: Remove pointless usage of IsOpenTTDBaseGRF. System GRFs are...
[openttd.git] / src / newgrf_text.cpp
blobdf00ef3419e63008afe2daf8b31bb57250151257
1 /* $Id$ */
3 /*
4 * This file is part of OpenTTD.
5 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8 */
10 /**
11 * @file newgrf_text.cpp
12 * Implementation of Action 04 "universal holder" structure and functions.
13 * This file implements a linked-lists of strings,
14 * holding everything that the newgrf action 04 will send over to OpenTTD.
15 * One of the biggest problems is that Dynamic lang Array uses ISO codes
16 * as way to identifying current user lang, while newgrf uses bit shift codes
17 * not related to ISO. So equivalence functionnality had to be set.
20 #include "stdafx.h"
21 #include "newgrf.h"
22 #include "strings_func.h"
23 #include "newgrf_storage.h"
24 #include "newgrf_text.h"
25 #include "newgrf_cargo.h"
26 #include "string_func.h"
27 #include "date_type.h"
28 #include "debug.h"
29 #include "core/alloc_type.hpp"
30 #include "core/smallmap_type.hpp"
31 #include "language.h"
33 #include "table/strings.h"
34 #include "table/control_codes.h"
36 #include "safeguards.h"
38 #define GRFTAB 28
39 #define TABSIZE 11
41 /**
42 * Explains the newgrf shift bit positioning.
43 * the grf base will not be used in order to find the string, but rather for
44 * jumping from standard langID scheme to the new one.
46 enum GRFBaseLanguages {
47 GRFLB_AMERICAN = 0x01,
48 GRFLB_ENGLISH = 0x02,
49 GRFLB_GERMAN = 0x04,
50 GRFLB_FRENCH = 0x08,
51 GRFLB_SPANISH = 0x10,
52 GRFLB_GENERIC = 0x80,
55 enum GRFExtendedLanguages {
56 GRFLX_AMERICAN = 0x00,
57 GRFLX_ENGLISH = 0x01,
58 GRFLX_GERMAN = 0x02,
59 GRFLX_FRENCH = 0x03,
60 GRFLX_SPANISH = 0x04,
61 GRFLX_UNSPECIFIED = 0x7F,
64 /**
65 * Element of the linked list.
66 * Each of those elements represent the string,
67 * but according to a different lang.
69 struct GRFText {
70 public:
71 /**
72 * Allocate, and assign a new GRFText with the given text.
73 * As these strings can have string terminations in them, e.g.
74 * due to "choice lists" we (sometimes) cannot rely on detecting
75 * the length by means of strlen. Also, if the length of already
76 * known not scanning the whole string is more efficient.
77 * @param langid The language of the text.
78 * @param text The text to store in the new GRFText.
79 * @param len The length of the text.
81 static GRFText *New(byte langid, const char *text, size_t len)
83 return new (len) GRFText(langid, text, len);
86 /**
87 * Create a copy of this GRFText.
88 * @param orig the grftext to copy.
89 * @return an exact copy of the given text.
91 static GRFText *Copy(GRFText *orig)
93 return GRFText::New(orig->langid, orig->text, orig->len);
96 /**
97 * Helper allocation function to disallow something.
98 * Don't allow simple 'news'; they wouldn't have enough memory.
99 * @param size the amount of space not to allocate.
101 void *operator new(size_t size)
103 NOT_REACHED();
107 * Free the memory we allocated.
108 * @param p memory to free.
110 void operator delete(void *p)
112 free(p);
114 private:
116 * Actually construct the GRFText.
117 * @param langid_ The language of the text.
118 * @param text_ The text to store in this GRFText.
119 * @param len_ The length of the text to store.
121 GRFText(byte langid_, const char *text_, size_t len_) : next(NULL), len(len_), langid(langid_)
123 /* We need to use memcpy instead of strcpy due to
124 * the possibility of "choice lists" and therefore
125 * intermediate string terminators. */
126 memcpy(this->text, text_, len);
130 * Allocate memory for this class.
131 * @param size the size of the instance
132 * @param extra the extra memory for the text
133 * @return the requested amount of memory for both the instance and the text
135 void *operator new(size_t size, size_t extra)
137 return MallocT<byte>(size + extra);
140 public:
141 GRFText *next; ///< The next GRFText in this chain.
142 size_t len; ///< The length of the stored string, used for copying.
143 byte langid; ///< The language associated with this GRFText.
144 char text[]; ///< The actual (translated) text.
149 * Holder of the above structure.
150 * Putting both grfid and stringid together allows us to avoid duplicates,
151 * since it is NOT SUPPOSED to happen.
153 struct GRFTextEntry {
154 uint32 grfid;
155 uint16 stringid;
156 StringID def_string;
157 GRFText *textholder;
161 static uint _num_grf_texts = 0;
162 static GRFTextEntry _grf_text[(1 << TABSIZE) * 3];
163 static byte _currentLangID = GRFLX_ENGLISH; ///< by default, english is used.
166 * Get the mapping from the NewGRF supplied ID to OpenTTD's internal ID.
167 * @param newgrf_id The NewGRF ID to map.
168 * @param gender Whether to map genders or cases.
169 * @return The, to OpenTTD's internal ID, mapped index, or -1 if there is no mapping.
171 int LanguageMap::GetMapping(int newgrf_id, bool gender) const
173 const SmallVector<Mapping, 1> &map = gender ? this->gender_map : this->case_map;
174 for (const Mapping *m = map.Begin(); m != map.End(); m++) {
175 if (m->newgrf_id == newgrf_id) return m->openttd_id;
177 return -1;
181 * Get the mapping from OpenTTD's internal ID to the NewGRF supplied ID.
182 * @param openttd_id The OpenTTD ID to map.
183 * @param gender Whether to map genders or cases.
184 * @return The, to the NewGRF supplied ID, mapped index, or -1 if there is no mapping.
186 int LanguageMap::GetReverseMapping(int openttd_id, bool gender) const
188 const SmallVector<Mapping, 1> &map = gender ? this->gender_map : this->case_map;
189 for (const Mapping *m = map.Begin(); m != map.End(); m++) {
190 if (m->openttd_id == openttd_id) return m->newgrf_id;
192 return -1;
195 /** Helper structure for mapping choice lists. */
196 struct UnmappedChoiceList : ZeroedMemoryAllocator {
197 /** Clean everything up. */
198 ~UnmappedChoiceList()
200 for (SmallPair<byte, char *> *p = this->strings.Begin(); p < this->strings.End(); p++) {
201 free(p->second);
206 * Initialise the mapping.
207 * @param type The type of mapping.
208 * @param old_d The old begin of the string, i.e. from where to start writing again.
209 * @param offset The offset to get the plural/gender from.
211 UnmappedChoiceList(StringControlCode type, char *old_d, int offset) :
212 type(type), old_d(old_d), offset(offset)
216 StringControlCode type; ///< The type of choice list.
217 char *old_d; ///< The old/original location of the "d" local variable.
218 int offset; ///< The offset for the plural/gender form.
220 /** Mapping of NewGRF supplied ID to the different strings in the choice list. */
221 SmallMap<byte, char *> strings;
224 * Flush this choice list into the old d variable.
225 * @param lm The current language mapping.
226 * @return The new location of the output string.
228 char *Flush(const LanguageMap *lm)
230 if (!this->strings.Contains(0)) {
231 /* In case of a (broken) NewGRF without a default,
232 * assume an empty string. */
233 grfmsg(1, "choice list misses default value");
234 this->strings[0] = stredup("");
237 char *d = old_d;
238 if (lm == NULL) {
239 /* In case there is no mapping, just ignore everything but the default.
240 * A probable cause for this happening is when the language file has
241 * been removed by the user and as such no mapping could be made. */
242 size_t len = strlen(this->strings[0]);
243 memcpy(d, this->strings[0], len);
244 return d + len;
247 d += Utf8Encode(d, this->type);
249 if (this->type == SCC_SWITCH_CASE) {
251 * Format for case switch:
252 * <NUM CASES> <CASE1> <LEN1> <STRING1> <CASE2> <LEN2> <STRING2> <CASE3> <LEN3> <STRING3> <STRINGDEFAULT>
253 * Each LEN is printed using 2 bytes in big endian order.
256 /* "<NUM CASES>" */
257 int count = 0;
258 for (uint8 i = 0; i < _current_language->num_cases; i++) {
259 /* Count the ones we have a mapped string for. */
260 if (this->strings.Contains(lm->GetReverseMapping(i, false))) count++;
262 *d++ = count;
264 for (uint8 i = 0; i < _current_language->num_cases; i++) {
265 /* Resolve the string we're looking for. */
266 int idx = lm->GetReverseMapping(i, false);
267 if (!this->strings.Contains(idx)) continue;
268 char *str = this->strings[idx];
270 /* "<CASEn>" */
271 *d++ = i + 1;
273 /* "<LENn>" */
274 size_t len = strlen(str) + 1;
275 *d++ = GB(len, 8, 8);
276 *d++ = GB(len, 0, 8);
278 /* "<STRINGn>" */
279 memcpy(d, str, len);
280 d += len;
283 /* "<STRINGDEFAULT>" */
284 size_t len = strlen(this->strings[0]) + 1;
285 memcpy(d, this->strings[0], len);
286 d += len;
287 } else {
288 if (this->type == SCC_PLURAL_LIST) {
289 *d++ = lm->plural_form;
293 * Format for choice list:
294 * <OFFSET> <NUM CHOICES> <LENs> <STRINGs>
297 /* "<OFFSET>" */
298 *d++ = this->offset - 0x80;
300 /* "<NUM CHOICES>" */
301 int count = (this->type == SCC_GENDER_LIST ? _current_language->num_genders : LANGUAGE_MAX_PLURAL_FORMS);
302 *d++ = count;
304 /* "<LENs>" */
305 for (int i = 0; i < count; i++) {
306 int idx = (this->type == SCC_GENDER_LIST ? lm->GetReverseMapping(i, true) : i + 1);
307 const char *str = this->strings[this->strings.Contains(idx) ? idx : 0];
308 size_t len = strlen(str) + 1;
309 if (len > 0xFF) grfmsg(1, "choice list string is too long");
310 *d++ = GB(len, 0, 8);
313 /* "<STRINGs>" */
314 for (int i = 0; i < count; i++) {
315 int idx = (this->type == SCC_GENDER_LIST ? lm->GetReverseMapping(i, true) : i + 1);
316 const char *str = this->strings[this->strings.Contains(idx) ? idx : 0];
317 /* Limit the length of the string we copy to 0xFE. The length is written above
318 * as a byte and we need room for the final '\0'. */
319 size_t len = min<size_t>(0xFE, strlen(str));
320 memcpy(d, str, len);
321 d += len;
322 *d++ = '\0';
325 return d;
330 * Translate TTDPatch string codes into something OpenTTD can handle (better).
331 * @param grfid The (NewGRF) ID associated with this string
332 * @param language_id The (NewGRF) language ID associated with this string.
333 * @param allow_newlines Whether newlines are allowed in the string or not.
334 * @param str The string to translate.
335 * @param [out] olen The length of the final string.
336 * @param byte80 The control code to use as replacement for the 0x80-value.
337 * @return The translated string.
339 char *TranslateTTDPatchCodes(uint32 grfid, uint8 language_id, bool allow_newlines, const char *str, int *olen, StringControlCode byte80)
341 char *tmp = MallocT<char>(strlen(str) * 10 + 1); // Allocate space to allow for expansion
342 char *d = tmp;
343 bool unicode = false;
344 WChar c;
345 size_t len = Utf8Decode(&c, str);
347 /* Helper variable for a possible (string) mapping. */
348 UnmappedChoiceList *mapping = NULL;
350 if (c == NFO_UTF8_IDENTIFIER) {
351 unicode = true;
352 str += len;
355 for (;;) {
356 if (unicode && Utf8EncodedCharLen(*str) != 0) {
357 c = Utf8Consume(&str);
358 /* 'Magic' range of control codes. */
359 if (GB(c, 8, 8) == 0xE0) {
360 c = GB(c, 0, 8);
361 } else if (c >= 0x20) {
362 if (!IsValidChar(c, CS_ALPHANUMERAL)) c = '?';
363 d += Utf8Encode(d, c);
364 continue;
366 } else {
367 c = (byte)*str++;
369 if (c == '\0') break;
371 switch (c) {
372 case 0x01:
373 if (str[0] == '\0') goto string_end;
374 d += Utf8Encode(d, ' ');
375 str++;
376 break;
377 case 0x0A: break;
378 case 0x0D:
379 if (allow_newlines) {
380 *d++ = 0x0A;
381 } else {
382 grfmsg(1, "Detected newline in string that does not allow one");
384 break;
385 case 0x0E: d += Utf8Encode(d, SCC_TINYFONT); break;
386 case 0x0F: d += Utf8Encode(d, SCC_BIGFONT); break;
387 case 0x1F:
388 if (str[0] == '\0' || str[1] == '\0') goto string_end;
389 d += Utf8Encode(d, ' ');
390 str += 2;
391 break;
392 case 0x7B:
393 case 0x7C:
394 case 0x7D:
395 case 0x7E:
396 case 0x7F: d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD_SIGNED + c - 0x7B); break;
397 case 0x80: d += Utf8Encode(d, byte80); break;
398 case 0x81: {
399 if (str[0] == '\0' || str[1] == '\0') goto string_end;
400 StringID string;
401 string = ((uint8)*str++);
402 string |= ((uint8)*str++) << 8;
403 d += Utf8Encode(d, SCC_NEWGRF_STRINL);
404 d += Utf8Encode(d, MapGRFStringID(grfid, string));
405 break;
407 case 0x82:
408 case 0x83:
409 case 0x84: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_DATE_LONG + c - 0x82); break;
410 case 0x85: d += Utf8Encode(d, SCC_NEWGRF_DISCARD_WORD); break;
411 case 0x86: d += Utf8Encode(d, SCC_NEWGRF_ROTATE_TOP_4_WORDS); break;
412 case 0x87: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_VOLUME_LONG); break;
413 case 0x88: d += Utf8Encode(d, SCC_BLUE); break;
414 case 0x89: d += Utf8Encode(d, SCC_SILVER); break;
415 case 0x8A: d += Utf8Encode(d, SCC_GOLD); break;
416 case 0x8B: d += Utf8Encode(d, SCC_RED); break;
417 case 0x8C: d += Utf8Encode(d, SCC_PURPLE); break;
418 case 0x8D: d += Utf8Encode(d, SCC_LTBROWN); break;
419 case 0x8E: d += Utf8Encode(d, SCC_ORANGE); break;
420 case 0x8F: d += Utf8Encode(d, SCC_GREEN); break;
421 case 0x90: d += Utf8Encode(d, SCC_YELLOW); break;
422 case 0x91: d += Utf8Encode(d, SCC_DKGREEN); break;
423 case 0x92: d += Utf8Encode(d, SCC_CREAM); break;
424 case 0x93: d += Utf8Encode(d, SCC_BROWN); break;
425 case 0x94: d += Utf8Encode(d, SCC_WHITE); break;
426 case 0x95: d += Utf8Encode(d, SCC_LTBLUE); break;
427 case 0x96: d += Utf8Encode(d, SCC_GRAY); break;
428 case 0x97: d += Utf8Encode(d, SCC_DKBLUE); break;
429 case 0x98: d += Utf8Encode(d, SCC_BLACK); break;
430 case 0x9A: {
431 int code = *str++;
432 switch (code) {
433 case 0x00: goto string_end;
434 case 0x01: d += Utf8Encode(d, SCC_NEWGRF_PRINT_QWORD_CURRENCY); break;
435 /* 0x02: ignore next colour byte is not supported. It works on the final
436 * string and as such hooks into the string drawing routine. At that
437 * point many things already happened, such as splitting up of strings
438 * when drawn over multiple lines or right-to-left translations, which
439 * make the behaviour peculiar, e.g. only happening at specific width
440 * of windows. Or we need to add another pass over the string to just
441 * support this. As such it is not implemented in OpenTTD. */
442 case 0x03: {
443 if (str[0] == '\0' || str[1] == '\0') goto string_end;
444 uint16 tmp = ((uint8)*str++);
445 tmp |= ((uint8)*str++) << 8;
446 d += Utf8Encode(d, SCC_NEWGRF_PUSH_WORD);
447 d += Utf8Encode(d, tmp);
448 break;
450 case 0x04:
451 if (str[0] == '\0') goto string_end;
452 d += Utf8Encode(d, SCC_NEWGRF_UNPRINT);
453 d += Utf8Encode(d, *str++);
454 break;
455 case 0x06: d += Utf8Encode(d, SCC_NEWGRF_PRINT_BYTE_HEX); break;
456 case 0x07: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_HEX); break;
457 case 0x08: d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD_HEX); break;
458 /* 0x09, 0x0A are TTDPatch internal use only string codes. */
459 case 0x0B: d += Utf8Encode(d, SCC_NEWGRF_PRINT_QWORD_HEX); break;
460 case 0x0C: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_STATION_NAME); break;
461 case 0x0D: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG); break;
462 case 0x0E:
463 case 0x0F: {
464 if (str[0] == '\0') goto string_end;
465 const LanguageMap *lm = LanguageMap::GetLanguageMap(grfid, language_id);
466 int index = *str++;
467 int mapped = lm != NULL ? lm->GetMapping(index, code == 0x0E) : -1;
468 if (mapped >= 0) {
469 d += Utf8Encode(d, code == 0x0E ? SCC_GENDER_INDEX : SCC_SET_CASE);
470 d += Utf8Encode(d, code == 0x0E ? mapped : mapped + 1);
472 break;
475 case 0x10:
476 case 0x11:
477 if (str[0] == '\0') goto string_end;
478 if (mapping == NULL) {
479 if (code == 0x10) str++; // Skip the index
480 grfmsg(1, "choice list %s marker found when not expected", code == 0x10 ? "next" : "default");
481 break;
482 } else {
483 /* Terminate the previous string. */
484 *d = '\0';
485 int index = (code == 0x10 ? *str++ : 0);
486 if (mapping->strings.Contains(index)) {
487 grfmsg(1, "duplicate choice list string, ignoring");
488 d++;
489 } else {
490 d = mapping->strings[index] = MallocT<char>(strlen(str) * 10 + 1);
493 break;
495 case 0x12:
496 if (mapping == NULL) {
497 grfmsg(1, "choice list end marker found when not expected");
498 } else {
499 /* Terminate the previous string. */
500 *d = '\0';
502 /* Now we can start flushing everything and clean everything up. */
503 d = mapping->Flush(LanguageMap::GetLanguageMap(grfid, language_id));
504 delete mapping;
505 mapping = NULL;
507 break;
509 case 0x13:
510 case 0x14:
511 case 0x15:
512 if (str[0] == '\0') goto string_end;
513 if (mapping != NULL) {
514 grfmsg(1, "choice lists can't be stacked, it's going to get messy now...");
515 if (code != 0x14) str++;
516 } else {
517 static const StringControlCode mp[] = { SCC_GENDER_LIST, SCC_SWITCH_CASE, SCC_PLURAL_LIST };
518 mapping = new UnmappedChoiceList(mp[code - 0x13], d, code == 0x14 ? 0 : *str++);
520 break;
522 case 0x16:
523 case 0x17:
524 case 0x18:
525 case 0x19:
526 case 0x1A:
527 case 0x1B:
528 case 0x1C:
529 case 0x1D:
530 case 0x1E:
531 d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD_DATE_LONG + code - 0x16);
532 break;
534 default:
535 grfmsg(1, "missing handler for extended format code");
536 break;
538 break;
541 case 0x9E: d += Utf8Encode(d, 0x20AC); break; // Euro
542 case 0x9F: d += Utf8Encode(d, 0x0178); break; // Y with diaeresis
543 case 0xA0: d += Utf8Encode(d, SCC_UP_ARROW); break;
544 case 0xAA: d += Utf8Encode(d, SCC_DOWN_ARROW); break;
545 case 0xAC: d += Utf8Encode(d, SCC_CHECKMARK); break;
546 case 0xAD: d += Utf8Encode(d, SCC_CROSS); break;
547 case 0xAF: d += Utf8Encode(d, SCC_RIGHT_ARROW); break;
548 case 0xB4: d += Utf8Encode(d, SCC_TRAIN); break;
549 case 0xB5: d += Utf8Encode(d, SCC_LORRY); break;
550 case 0xB6: d += Utf8Encode(d, SCC_BUS); break;
551 case 0xB7: d += Utf8Encode(d, SCC_PLANE); break;
552 case 0xB8: d += Utf8Encode(d, SCC_SHIP); break;
553 case 0xB9: d += Utf8Encode(d, SCC_SUPERSCRIPT_M1); break;
554 case 0xBC: d += Utf8Encode(d, SCC_SMALL_UP_ARROW); break;
555 case 0xBD: d += Utf8Encode(d, SCC_SMALL_DOWN_ARROW); break;
556 default:
557 /* Validate any unhandled character */
558 if (!IsValidChar(c, CS_ALPHANUMERAL)) c = '?';
559 d += Utf8Encode(d, c);
560 break;
564 string_end:
565 if (mapping != NULL) {
566 grfmsg(1, "choice list was incomplete, the whole list is ignored");
567 delete mapping;
570 *d = '\0';
571 if (olen != NULL) *olen = d - tmp + 1;
572 tmp = ReallocT(tmp, d - tmp + 1);
573 return tmp;
577 * Add a GRFText to a GRFText list.
578 * @param list The list where the text should be added to.
579 * @param text_to_add The GRFText to add to the list.
581 void AddGRFTextToList(GRFText **list, GRFText *text_to_add)
583 GRFText **ptext, *text;
585 /* Loop through all languages and see if we can replace a string */
586 for (ptext = list; (text = *ptext) != NULL; ptext = &text->next) {
587 if (text->langid == text_to_add->langid) {
588 text_to_add->next = text->next;
589 *ptext = text_to_add;
590 delete text;
591 return;
595 /* If a string wasn't replaced, then we must append the new string */
596 *ptext = text_to_add;
600 * Add a string to a GRFText list.
601 * @param list The list where the text should be added to.
602 * @param langid The language of the new text.
603 * @param grfid The grfid where this string is defined.
604 * @param allow_newlines Whether newlines are allowed in this string.
605 * @param text_to_add The text to add to the list.
606 * @note All text-codes will be translated.
608 void AddGRFTextToList(struct GRFText **list, byte langid, uint32 grfid, bool allow_newlines, const char *text_to_add)
610 int len;
611 char *translatedtext = TranslateTTDPatchCodes(grfid, langid, allow_newlines, text_to_add, &len);
612 GRFText *newtext = GRFText::New(langid, translatedtext, len);
613 free(translatedtext);
615 AddGRFTextToList(list, newtext);
619 * Add a GRFText to a GRFText list. The text should not contain any text-codes.
620 * The text will be added as a 'default language'-text.
621 * @param list The list where the text should be added to.
622 * @param text_to_add The text to add to the list.
624 void AddGRFTextToList(struct GRFText **list, const char *text_to_add)
626 AddGRFTextToList(list, GRFText::New(0x7F, text_to_add, strlen(text_to_add) + 1));
630 * Create a copy of this GRFText list.
631 * @param orig The GRFText list to copy.
632 * @return A duplicate of the given GRFText.
634 GRFText *DuplicateGRFText(GRFText *orig)
636 GRFText *newtext = NULL;
637 GRFText **ptext = &newtext;
638 for (; orig != NULL; orig = orig->next) {
639 *ptext = GRFText::Copy(orig);
640 ptext = &(*ptext)->next;
642 return newtext;
646 * Add the new read string into our structure.
648 StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, bool new_scheme, bool allow_newlines, const char *text_to_add, StringID def_string)
650 char *translatedtext;
651 uint id;
653 /* When working with the old language scheme (grf_version is less than 7) and
654 * English or American is among the set bits, simply add it as English in
655 * the new scheme, i.e. as langid = 1.
656 * If English is set, it is pretty safe to assume the translations are not
657 * actually translated.
659 if (!new_scheme) {
660 if (langid_to_add & (GRFLB_AMERICAN | GRFLB_ENGLISH)) {
661 langid_to_add = GRFLX_ENGLISH;
662 } else {
663 StringID ret = STR_EMPTY;
664 if (langid_to_add & GRFLB_GERMAN) ret = AddGRFString(grfid, stringid, GRFLX_GERMAN, true, allow_newlines, text_to_add, def_string);
665 if (langid_to_add & GRFLB_FRENCH) ret = AddGRFString(grfid, stringid, GRFLX_FRENCH, true, allow_newlines, text_to_add, def_string);
666 if (langid_to_add & GRFLB_SPANISH) ret = AddGRFString(grfid, stringid, GRFLX_SPANISH, true, allow_newlines, text_to_add, def_string);
667 return ret;
671 for (id = 0; id < _num_grf_texts; id++) {
672 if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
673 break;
677 /* Too many strings allocated, return empty */
678 if (id == lengthof(_grf_text)) return STR_EMPTY;
680 int len;
681 translatedtext = TranslateTTDPatchCodes(grfid, langid_to_add, allow_newlines, text_to_add, &len);
683 GRFText *newtext = GRFText::New(langid_to_add, translatedtext, len);
685 free(translatedtext);
687 /* If we didn't find our stringid and grfid in the list, allocate a new id */
688 if (id == _num_grf_texts) _num_grf_texts++;
690 if (_grf_text[id].textholder == NULL) {
691 _grf_text[id].grfid = grfid;
692 _grf_text[id].stringid = stringid;
693 _grf_text[id].def_string = def_string;
695 AddGRFTextToList(&_grf_text[id].textholder, newtext);
697 grfmsg(3, "Added 0x%X: grfid %08X string 0x%X lang 0x%X string '%s'", id, grfid, stringid, newtext->langid, newtext->text);
699 return (GRFTAB << TABSIZE) + id;
703 * Returns the index for this stringid associated with its grfID
705 StringID GetGRFStringID(uint32 grfid, uint16 stringid)
707 for (uint id = 0; id < _num_grf_texts; id++) {
708 if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
709 return (GRFTAB << TABSIZE) + id;
713 return STR_UNDEFINED;
718 * Get a C-string from a GRFText-list. If there is a translation for the
719 * current language it is returned, otherwise the default translation
720 * is returned. If there is neither a default nor a translation for the
721 * current language NULL is returned.
722 * @param text The GRFText to get the string from.
724 const char *GetGRFStringFromGRFText(const GRFText *text)
726 const char *default_text = NULL;
728 /* Search the list of lang-strings of this stringid for current lang */
729 for (; text != NULL; text = text->next) {
730 if (text->langid == _currentLangID) return text->text;
732 /* If the current string is English or American, set it as the
733 * fallback language if the specific language isn't available. */
734 if (text->langid == GRFLX_UNSPECIFIED || (default_text == NULL && (text->langid == GRFLX_ENGLISH || text->langid == GRFLX_AMERICAN))) {
735 default_text = text->text;
739 return default_text;
743 * Get a C-string from a stringid set by a newgrf.
745 const char *GetGRFStringPtr(uint16 stringid)
747 assert(_grf_text[stringid].grfid != 0);
749 const char *str = GetGRFStringFromGRFText(_grf_text[stringid].textholder);
750 if (str != NULL) return str;
752 /* Use the default string ID if the fallback string isn't available */
753 return GetStringPtr(_grf_text[stringid].def_string);
757 * Equivalence Setter function between game and newgrf langID.
758 * This function will adjust _currentLangID as to what is the LangID
759 * of the current language set by the user.
760 * This function is called after the user changed language,
761 * from strings.cpp:ReadLanguagePack
762 * @param language_id iso code of current selection
764 void SetCurrentGrfLangID(byte language_id)
766 _currentLangID = language_id;
769 bool CheckGrfLangID(byte lang_id, byte grf_version)
771 if (grf_version < 7) {
772 switch (_currentLangID) {
773 case GRFLX_GERMAN: return (lang_id & GRFLB_GERMAN) != 0;
774 case GRFLX_FRENCH: return (lang_id & GRFLB_FRENCH) != 0;
775 case GRFLX_SPANISH: return (lang_id & GRFLB_SPANISH) != 0;
776 default: return (lang_id & (GRFLB_ENGLISH | GRFLB_AMERICAN)) != 0;
780 return (lang_id == _currentLangID || lang_id == GRFLX_UNSPECIFIED);
784 * Delete all items of a linked GRFText list.
785 * @param grftext the head of the list to delete
787 void CleanUpGRFText(GRFText *grftext)
789 while (grftext != NULL) {
790 GRFText *grftext2 = grftext->next;
791 delete grftext;
792 grftext = grftext2;
797 * House cleaning.
798 * Remove all strings and reset the text counter.
800 void CleanUpStrings()
802 uint id;
804 for (id = 0; id < _num_grf_texts; id++) {
805 CleanUpGRFText(_grf_text[id].textholder);
806 _grf_text[id].grfid = 0;
807 _grf_text[id].stringid = 0;
808 _grf_text[id].textholder = NULL;
811 _num_grf_texts = 0;
814 struct TextRefStack {
815 byte stack[0x30];
816 byte position;
817 const GRFFile *grffile;
818 bool used;
820 TextRefStack() : position(0), grffile(NULL), used(false) {}
822 TextRefStack(const TextRefStack &stack) :
823 position(stack.position),
824 grffile(stack.grffile),
825 used(stack.used)
827 memcpy(this->stack, stack.stack, sizeof(this->stack));
830 uint8 PopUnsignedByte() { assert(this->position < lengthof(this->stack)); return this->stack[this->position++]; }
831 int8 PopSignedByte() { return (int8)this->PopUnsignedByte(); }
833 uint16 PopUnsignedWord()
835 uint16 val = this->PopUnsignedByte();
836 return val | (this->PopUnsignedByte() << 8);
838 int16 PopSignedWord() { return (int32)this->PopUnsignedWord(); }
840 uint32 PopUnsignedDWord()
842 uint32 val = this->PopUnsignedWord();
843 return val | (this->PopUnsignedWord() << 16);
845 int32 PopSignedDWord() { return (int32)this->PopUnsignedDWord(); }
847 uint64 PopUnsignedQWord()
849 uint64 val = this->PopUnsignedDWord();
850 return val | (((uint64)this->PopUnsignedDWord()) << 32);
852 int64 PopSignedQWord() { return (int64)this->PopUnsignedQWord(); }
854 /** Rotate the top four words down: W1, W2, W3, W4 -> W4, W1, W2, W3 */
855 void RotateTop4Words()
857 byte tmp[2];
858 for (int i = 0; i < 2; i++) tmp[i] = this->stack[this->position + i + 6];
859 for (int i = 5; i >= 0; i--) this->stack[this->position + i + 2] = this->stack[this->position + i];
860 for (int i = 0; i < 2; i++) this->stack[this->position + i] = tmp[i];
863 void PushWord(uint16 word)
865 if (this->position >= 2) {
866 this->position -= 2;
867 } else {
868 for (int i = lengthof(stack) - 1; i >= this->position + 2; i--) {
869 this->stack[i] = this->stack[i - 2];
872 this->stack[this->position] = GB(word, 0, 8);
873 this->stack[this->position + 1] = GB(word, 8, 8);
876 void ResetStack(const GRFFile *grffile)
878 assert(grffile != NULL);
879 this->position = 0;
880 this->grffile = grffile;
881 this->used = true;
884 void RewindStack() { this->position = 0; }
887 /** The stack that is used for TTDP compatible string code parsing */
888 static TextRefStack _newgrf_textrefstack;
891 * Check whether the NewGRF text stack is in use.
892 * @return True iff the NewGRF text stack is used.
894 bool UsingNewGRFTextStack()
896 return _newgrf_textrefstack.used;
900 * Create a backup of the current NewGRF text stack.
901 * @return A copy of the current text stack.
903 struct TextRefStack *CreateTextRefStackBackup()
905 return new TextRefStack(_newgrf_textrefstack);
909 * Restore a copy of the text stack to the used stack.
910 * @param backup The copy to restore.
912 void RestoreTextRefStackBackup(struct TextRefStack *backup)
914 _newgrf_textrefstack = *backup;
915 delete backup;
919 * Start using the TTDP compatible string code parsing.
921 * On start a number of values is copied on the #TextRefStack.
922 * You can then use #GetString() and the normal string drawing functions,
923 * and they will use the #TextRefStack for NewGRF string codes.
925 * However, when you want to draw a string multiple times using the same stack,
926 * you have to call #RewindTextRefStack() between draws.
928 * After you are done with drawing, you must disable usage of the #TextRefStack
929 * by calling #StopTextRefStackUsage(), so NewGRF string codes operate on the
930 * normal string parameters again.
932 * @param grffile the NewGRF providing the stack data
933 * @param numEntries number of entries to copy from the registers
934 * @param values values to copy onto the stack; if NULL the temporary NewGRF registers will be used instead
936 void StartTextRefStackUsage(const GRFFile *grffile, byte numEntries, const uint32 *values)
938 extern TemporaryStorageArray<int32, 0x110> _temp_store;
940 _newgrf_textrefstack.ResetStack(grffile);
942 byte *p = _newgrf_textrefstack.stack;
943 for (uint i = 0; i < numEntries; i++) {
944 uint32 value = values != NULL ? values[i] : _temp_store.GetValue(0x100 + i);
945 for (uint j = 0; j < 32; j += 8) {
946 *p = GB(value, j, 8);
947 p++;
952 /** Stop using the TTDP compatible string code parsing */
953 void StopTextRefStackUsage()
955 _newgrf_textrefstack.used = false;
958 void RewindTextRefStack()
960 _newgrf_textrefstack.RewindStack();
964 * FormatString for NewGRF specific "magic" string control codes
965 * @param scc the string control code that has been read
966 * @param buff the buffer we're writing to
967 * @param str the string that we need to write
968 * @param argv the OpenTTD stack of values
969 * @param argv_size space on the stack \a argv
970 * @param modify_argv When true, modify the OpenTTD stack.
971 * @return the string control code to "execute" now
973 uint RemapNewGRFStringControlCode(uint scc, char *buf_start, char **buff, const char **str, int64 *argv, uint argv_size, bool modify_argv)
975 switch (scc) {
976 default: break;
978 case SCC_NEWGRF_PRINT_DWORD_SIGNED:
979 case SCC_NEWGRF_PRINT_WORD_SIGNED:
980 case SCC_NEWGRF_PRINT_BYTE_SIGNED:
981 case SCC_NEWGRF_PRINT_WORD_UNSIGNED:
982 case SCC_NEWGRF_PRINT_BYTE_HEX:
983 case SCC_NEWGRF_PRINT_WORD_HEX:
984 case SCC_NEWGRF_PRINT_DWORD_HEX:
985 case SCC_NEWGRF_PRINT_QWORD_HEX:
986 case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
987 case SCC_NEWGRF_PRINT_QWORD_CURRENCY:
988 case SCC_NEWGRF_PRINT_WORD_STRING_ID:
989 case SCC_NEWGRF_PRINT_WORD_DATE_LONG:
990 case SCC_NEWGRF_PRINT_DWORD_DATE_LONG:
991 case SCC_NEWGRF_PRINT_WORD_DATE_SHORT:
992 case SCC_NEWGRF_PRINT_DWORD_DATE_SHORT:
993 case SCC_NEWGRF_PRINT_WORD_SPEED:
994 case SCC_NEWGRF_PRINT_WORD_VOLUME_LONG:
995 case SCC_NEWGRF_PRINT_WORD_VOLUME_SHORT:
996 case SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG:
997 case SCC_NEWGRF_PRINT_WORD_WEIGHT_SHORT:
998 case SCC_NEWGRF_PRINT_WORD_POWER:
999 case SCC_NEWGRF_PRINT_WORD_STATION_NAME:
1000 case SCC_NEWGRF_PRINT_WORD_CARGO_NAME:
1001 if (argv_size < 1) {
1002 DEBUG(misc, 0, "Too many NewGRF string parameters.");
1003 return 0;
1005 break;
1007 case SCC_NEWGRF_PRINT_WORD_CARGO_LONG:
1008 case SCC_NEWGRF_PRINT_WORD_CARGO_SHORT:
1009 case SCC_NEWGRF_PRINT_WORD_CARGO_TINY:
1010 if (argv_size < 2) {
1011 DEBUG(misc, 0, "Too many NewGRF string parameters.");
1012 return 0;
1014 break;
1017 if (_newgrf_textrefstack.used && modify_argv) {
1018 switch (scc) {
1019 default: NOT_REACHED();
1020 case SCC_NEWGRF_PRINT_BYTE_SIGNED: *argv = _newgrf_textrefstack.PopSignedByte(); break;
1021 case SCC_NEWGRF_PRINT_QWORD_CURRENCY: *argv = _newgrf_textrefstack.PopSignedQWord(); break;
1023 case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
1024 case SCC_NEWGRF_PRINT_DWORD_SIGNED: *argv = _newgrf_textrefstack.PopSignedDWord(); break;
1026 case SCC_NEWGRF_PRINT_BYTE_HEX: *argv = _newgrf_textrefstack.PopUnsignedByte(); break;
1027 case SCC_NEWGRF_PRINT_QWORD_HEX: *argv = _newgrf_textrefstack.PopUnsignedQWord(); break;
1029 case SCC_NEWGRF_PRINT_WORD_SPEED:
1030 case SCC_NEWGRF_PRINT_WORD_VOLUME_LONG:
1031 case SCC_NEWGRF_PRINT_WORD_VOLUME_SHORT:
1032 case SCC_NEWGRF_PRINT_WORD_SIGNED: *argv = _newgrf_textrefstack.PopSignedWord(); break;
1034 case SCC_NEWGRF_PRINT_WORD_HEX:
1035 case SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG:
1036 case SCC_NEWGRF_PRINT_WORD_WEIGHT_SHORT:
1037 case SCC_NEWGRF_PRINT_WORD_POWER:
1038 case SCC_NEWGRF_PRINT_WORD_STATION_NAME:
1039 case SCC_NEWGRF_PRINT_WORD_UNSIGNED: *argv = _newgrf_textrefstack.PopUnsignedWord(); break;
1041 case SCC_NEWGRF_PRINT_DWORD_DATE_LONG:
1042 case SCC_NEWGRF_PRINT_DWORD_DATE_SHORT:
1043 case SCC_NEWGRF_PRINT_DWORD_HEX: *argv = _newgrf_textrefstack.PopUnsignedDWord(); break;
1045 case SCC_NEWGRF_PRINT_WORD_DATE_LONG:
1046 case SCC_NEWGRF_PRINT_WORD_DATE_SHORT: *argv = _newgrf_textrefstack.PopUnsignedWord() + DAYS_TILL_ORIGINAL_BASE_YEAR; break;
1048 case SCC_NEWGRF_DISCARD_WORD: _newgrf_textrefstack.PopUnsignedWord(); break;
1050 case SCC_NEWGRF_ROTATE_TOP_4_WORDS: _newgrf_textrefstack.RotateTop4Words(); break;
1051 case SCC_NEWGRF_PUSH_WORD: _newgrf_textrefstack.PushWord(Utf8Consume(str)); break;
1052 case SCC_NEWGRF_UNPRINT: *buff = max(*buff - Utf8Consume(str), buf_start); break;
1054 case SCC_NEWGRF_PRINT_WORD_CARGO_LONG:
1055 case SCC_NEWGRF_PRINT_WORD_CARGO_SHORT:
1056 case SCC_NEWGRF_PRINT_WORD_CARGO_TINY:
1057 argv[0] = GetCargoTranslation(_newgrf_textrefstack.PopUnsignedWord(), _newgrf_textrefstack.grffile);
1058 argv[1] = _newgrf_textrefstack.PopUnsignedWord();
1059 break;
1061 case SCC_NEWGRF_PRINT_WORD_STRING_ID:
1062 *argv = MapGRFStringID(_newgrf_textrefstack.grffile->grfid, _newgrf_textrefstack.PopUnsignedWord());
1063 break;
1065 case SCC_NEWGRF_PRINT_WORD_CARGO_NAME: {
1066 CargoID cargo = GetCargoTranslation(_newgrf_textrefstack.PopUnsignedWord(), _newgrf_textrefstack.grffile);
1067 *argv = cargo < NUM_CARGO ? 1 << cargo : 0;
1068 break;
1071 } else {
1072 /* Consume additional parameter characters */
1073 switch (scc) {
1074 default: break;
1076 case SCC_NEWGRF_PUSH_WORD:
1077 case SCC_NEWGRF_UNPRINT:
1078 Utf8Consume(str);
1079 break;
1083 switch (scc) {
1084 default: NOT_REACHED();
1085 case SCC_NEWGRF_PRINT_DWORD_SIGNED:
1086 case SCC_NEWGRF_PRINT_WORD_SIGNED:
1087 case SCC_NEWGRF_PRINT_BYTE_SIGNED:
1088 case SCC_NEWGRF_PRINT_WORD_UNSIGNED:
1089 return SCC_COMMA;
1091 case SCC_NEWGRF_PRINT_BYTE_HEX:
1092 case SCC_NEWGRF_PRINT_WORD_HEX:
1093 case SCC_NEWGRF_PRINT_DWORD_HEX:
1094 case SCC_NEWGRF_PRINT_QWORD_HEX:
1095 return SCC_HEX;
1097 case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
1098 case SCC_NEWGRF_PRINT_QWORD_CURRENCY:
1099 return SCC_CURRENCY_LONG;
1101 case SCC_NEWGRF_PRINT_WORD_STRING_ID:
1102 return SCC_NEWGRF_PRINT_WORD_STRING_ID;
1104 case SCC_NEWGRF_PRINT_WORD_DATE_LONG:
1105 case SCC_NEWGRF_PRINT_DWORD_DATE_LONG:
1106 return SCC_DATE_LONG;
1108 case SCC_NEWGRF_PRINT_WORD_DATE_SHORT:
1109 case SCC_NEWGRF_PRINT_DWORD_DATE_SHORT:
1110 return SCC_DATE_SHORT;
1112 case SCC_NEWGRF_PRINT_WORD_SPEED:
1113 return SCC_VELOCITY;
1115 case SCC_NEWGRF_PRINT_WORD_VOLUME_LONG:
1116 return SCC_VOLUME_LONG;
1118 case SCC_NEWGRF_PRINT_WORD_VOLUME_SHORT:
1119 return SCC_VOLUME_SHORT;
1121 case SCC_NEWGRF_PRINT_WORD_WEIGHT_LONG:
1122 return SCC_WEIGHT_LONG;
1124 case SCC_NEWGRF_PRINT_WORD_WEIGHT_SHORT:
1125 return SCC_WEIGHT_SHORT;
1127 case SCC_NEWGRF_PRINT_WORD_POWER:
1128 return SCC_POWER;
1130 case SCC_NEWGRF_PRINT_WORD_CARGO_LONG:
1131 return SCC_CARGO_LONG;
1133 case SCC_NEWGRF_PRINT_WORD_CARGO_SHORT:
1134 return SCC_CARGO_SHORT;
1136 case SCC_NEWGRF_PRINT_WORD_CARGO_TINY:
1137 return SCC_CARGO_TINY;
1139 case SCC_NEWGRF_PRINT_WORD_CARGO_NAME:
1140 return SCC_CARGO_LIST;
1142 case SCC_NEWGRF_PRINT_WORD_STATION_NAME:
1143 return SCC_STATION_NAME;
1145 case SCC_NEWGRF_DISCARD_WORD:
1146 case SCC_NEWGRF_ROTATE_TOP_4_WORDS:
1147 case SCC_NEWGRF_PUSH_WORD:
1148 case SCC_NEWGRF_UNPRINT:
1149 return 0;