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/* $Id$ */
/** @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 "variables.h"
#include "macros.h"
#include "table/strings.h"
#include "newgrf_text.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_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_ESTONIAN = 0x34,
GRFLX_FINNISH = 0x35,
GRFLX_PORTUGUESE = 0x36,
GRFLX_BRAZILIAN = 0x37,
GRFLX_TURKISH = 0x3E,
} 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", GRFLX_GERMAN},
{"fr", GRFLX_FRENCH},
{"es", GRFLX_SPANISH},
{"cs", GRFLX_CZECH},
{"ca", GRFLX_CATALAN},
{"da", GRFLX_DANISH},
{"nl", GRFLX_DUTCH},
{"et", GRFLX_ESTONIAN},
{"fi", GRFLX_FINNISH},
{"fy", GRFLX_FRISIAN},
{"gl", GRFLX_GALICIAN},
{"hu", GRFLX_HUNGARIAN},
{"is", GRFLX_ICELANDIC},
{"it", GRFLX_ITALIAN},
{"lv", GRFLX_LATVIAN},
{"lt", GRFLX_LITHUANIAN},
{"nb", GRFLX_NORWEGIAN},
{"pl", GRFLX_POLISH},
{"pt", GRFLX_PORTUGUESE},
{"pt_BR", GRFLX_BRAZILIAN},
{"ro", GRFLX_ROMANIAN},
{"ru", GRFLX_RUSSIAN},
{"sk", GRFLX_SLOVAK},
{"sl", GRFLX_SLOVENIAN},
{"sv", GRFLX_SWEDISH},
{"tr", GRFLX_TURKISH},
{"gen", GRFLB_GENERIC} //this is not iso code, but there has to be something...
};
static uint _num_grf_texts = 0;
static GRFTextEntry _grf_text[(1 << TABSIZE) * 3];
static byte _currentLangID = GRFLX_ENGLISH; //by default, english is used.
/**
* Add the new read stirng into our structure.
* TODO : ajust the old scheme to the new one for german,french and spanish
*/
StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, const char *text_to_add)
{
GRFText *newtext;
uint id;
/* When working with the old language scheme (bit 6 of langid is clear) 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 (!HASBIT(langid_to_add, 6)) {
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, 1 << 6 | GRFLX_GERMAN, text_to_add);
if (langid_to_add & GRFLB_FRENCH) ret = AddGRFString(grfid, stringid, 1 << 6 | GRFLX_FRENCH, text_to_add);
if (langid_to_add & GRFLB_SPANISH) ret = AddGRFString(grfid, stringid, 1 << 6 | GRFLX_SPANISH, text_to_add);
return ret;
}
}
newtext = calloc(1, sizeof(*newtext));
newtext->langid = GB(langid_to_add, 0, 6);
newtext->text = strdup(text_to_add);
newtext->next = NULL;
str_validate(newtext->text);
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;
/* 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].textholder = newtext;
} else {
GRFText *textptr = _grf_text[id].textholder;
while (textptr->next != NULL) textptr = textptr->next;
textptr->next = 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;
}
/**
* Returns the index for this stringid associated with its grfID
*/
StringID GetGRFStringID(uint32 grfid, uint16 stringid)
{
uint id;
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)
{
GRFText *search_text;
assert(_grf_text[stringid].grfid != 0);
/*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, NULL);
}
}
/* Use the first text if the specific language isn't available */
return strecpy(buff, _grf_text[stringid].textholder->text, NULL);
}
/**
* 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)
{
byte ret,i;
/* Use English by default, if we can't match up the iso_code. */
ret = GRFLX_ENGLISH;
for (i=0; i < lengthof(iso_codes); i++) {
if (strcmp(iso_codes[i].code, iso_name) == 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->text);
free(grftext);
grftext = grftext2;
}
_grf_text[id].grfid = 0;
_grf_text[id].stringid = 0;
_grf_text[id].textholder = NULL;
}
_num_grf_texts = 0;
}
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