Implementation of Action 04 "universal holder" structure and functions. More...

#include "stdafx.h"
#include "newgrf.h"
#include "strings_internal.h"
#include "newgrf_storage.h"
#include "newgrf_text.h"
#include "newgrf_cargo.h"
#include "string_func.h"
#include "timer/timer_game_calendar.h"
#include "debug.h"
#include "core/alloc_type.hpp"
#include "language.h"
#include <sstream>
#include "table/strings.h"
#include "table/control_codes.h"
#include "safeguards.h"

Data Structures
struct	GRFTextEntry
	Holder of the above structure. More...

struct	UnmappedChoiceList
	Helper structure for mapping choice lists. More...

struct	TextRefStack

Enumerations
enum	GRFBaseLanguages { GRFLB_AMERICAN = 0x01 , GRFLB_ENGLISH = 0x02 , GRFLB_GERMAN = 0x04 , GRFLB_FRENCH = 0x08 , GRFLB_SPANISH = 0x10 , GRFLB_GENERIC = 0x80 }
	Explains the newgrf shift bit positioning. More...

enum	GRFExtendedLanguages { GRFLX_AMERICAN = 0x00 , GRFLX_ENGLISH = 0x01 , GRFLX_GERMAN = 0x02 , GRFLX_FRENCH = 0x03 , GRFLX_SPANISH = 0x04 , GRFLX_UNSPECIFIED = 0x7F }

Functions
std::string	TranslateTTDPatchCodes (uint32_t grfid, uint8_t language_id, bool allow_newlines, std::string_view str, StringControlCode byte80)
	Translate TTDPatch string codes into something OpenTTD can handle (better). More...

static void	AddGRFTextToList (GRFTextList &list, uint8_t langid, std::string_view text_to_add)
	Add a new text to a GRFText list. More...

void	AddGRFTextToList (GRFTextList &list, uint8_t langid, uint32_t grfid, bool allow_newlines, std::string_view text_to_add)
	Add a string to a GRFText list. More...

void	AddGRFTextToList (GRFTextWrapper &list, uint8_t langid, uint32_t grfid, bool allow_newlines, std::string_view text_to_add)
	Add a string to a GRFText list. More...

void	AddGRFTextToList (GRFTextWrapper &list, std::string_view text_to_add)
	Add a GRFText to a GRFText list. More...

StringID	AddGRFString (uint32_t grfid, uint16_t stringid, uint8_t langid_to_add, bool new_scheme, bool allow_newlines, std::string_view text_to_add, StringID def_string)
	Add the new read string into our structure.

StringID	GetGRFStringID (uint32_t grfid, StringID stringid)
	Returns the index for this stringid associated with its grfID.

const char *	GetGRFStringFromGRFText (const GRFTextList &text_list)
	Get a C-string from a GRFText-list. More...

const char *	GetGRFStringFromGRFText (const GRFTextWrapper &text)
	Get a C-string from a GRFText-list. More...

const char *	GetGRFStringPtr (uint32_t stringid)
	Get a C-string from a stringid set by a newgrf.

void	SetCurrentGrfLangID (uint8_t language_id)
	Equivalence Setter function between game and newgrf langID. More...

bool	CheckGrfLangID (uint8_t lang_id, uint8_t grf_version)

void	CleanUpStrings ()
	House cleaning. More...

bool	UsingNewGRFTextStack ()
	Check whether the NewGRF text stack is in use. More...

struct TextRefStack *	CreateTextRefStackBackup ()
	Create a backup of the current NewGRF text stack. More...

void	RestoreTextRefStackBackup (struct TextRefStack *backup)
	Restore a copy of the text stack to the used stack. More...

void	StartTextRefStackUsage (const GRFFile grffile, uint8_t numEntries, const uint32_t values)
	Start using the TTDP compatible string code parsing. More...

void	StopTextRefStackUsage ()
	Stop using the TTDP compatible string code parsing.

uint	RemapNewGRFStringControlCode (uint scc, const char **str, StringParameters &parameters, bool modify_parameters)
	FormatString for NewGRF specific "magic" string control codes. More...

Variables
static std::vector< GRFTextEntry >	_grf_text

static uint8_t	_currentLangID = GRFLX_ENGLISH
	by default, english is used.

static TextRefStack	_newgrf_textrefstack
	The stack that is used for TTDP compatible string code parsing.

Detailed Description

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 functionality had to be set.

Definition in file newgrf_text.cpp.

Enumeration Type Documentation

◆ GRFBaseLanguages

enum GRFBaseLanguages

Explains the newgrf shift bit positioning.

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.

Definition at line 42 of file newgrf_text.cpp.

Function Documentation

◆ AddGRFTextToList() [1/4]

static void AddGRFTextToList	(	GRFTextList &	list,
		uint8_t	langid,
		std::string_view	text_to_add
	)

static

Add a new text to a GRFText list.

Parameters

list	The list where the text should be added to.
langid	The The language of the new text.
text_to_add	The text to add to the list.

Definition at line 485 of file newgrf_text.cpp.

Referenced by AddGRFTextToList(), ChangeGRFDescription(), ChangeGRFName(), ChangeGRFParamDescription(), ChangeGRFParamName(), and ChangeGRFURL().

◆ AddGRFTextToList() [2/4]

void AddGRFTextToList	(	GRFTextList &	list,
		uint8_t	langid,
		uint32_t	grfid,
		bool	allow_newlines,
		std::string_view	text_to_add
	)

Add a string to a GRFText list.

Parameters

list	The list where the text should be added to.
langid	The language of the new text.
grfid	The grfid where this string is defined.
allow_newlines	Whether newlines are allowed in this string.
text_to_add	The text to add to the list.

Note: All text-codes will be translated.

Definition at line 508 of file newgrf_text.cpp.

References AddGRFTextToList(), and TranslateTTDPatchCodes().

◆ AddGRFTextToList() [3/4]

void AddGRFTextToList	(	GRFTextWrapper &	list,
		std::string_view	text_to_add
	)

Add a GRFText to a GRFText list.

The text should not contain any text-codes. The text will be added as a 'default language'-text.

Parameters

list	The list where the text should be added to.
text_to_add	The text to add to the list.

Definition at line 534 of file newgrf_text.cpp.

References AddGRFTextToList().

◆ AddGRFTextToList() [4/4]

void AddGRFTextToList	(	GRFTextWrapper &	list,
		uint8_t	langid,
		uint32_t	grfid,
		bool	allow_newlines,
		std::string_view	text_to_add
	)

Add a string to a GRFText list.

Parameters

list	The list where the text should be added to.
langid	The language of the new text.
grfid	The grfid where this string is defined.
allow_newlines	Whether newlines are allowed in this string.
text_to_add	The text to add to the list.

Note: All text-codes will be translated.

Definition at line 522 of file newgrf_text.cpp.

References AddGRFTextToList().

◆ CleanUpStrings()

void CleanUpStrings ( )

House cleaning.

Remove all strings.

Definition at line 682 of file newgrf_text.cpp.

Referenced by ResetNewGRFData().

◆ CreateTextRefStackBackup()

struct TextRefStack* CreateTextRefStackBackup ( )

Create a backup of the current NewGRF text stack.

Returns: A copy of the current text stack.

Definition at line 765 of file newgrf_text.cpp.

References _newgrf_textrefstack.

Referenced by FormatString().

◆ GetGRFStringFromGRFText() [1/2]

const char* GetGRFStringFromGRFText ( const GRFTextList & text_list )

Get a C-string from a GRFText-list.

If there is a translation for the current language it is returned, otherwise the default translation is returned. If there is neither a default nor a translation for the current language nullptr is returned.

Parameters

text_list The GRFTextList to get the string from.

Definition at line 606 of file newgrf_text.cpp.

References _currentLangID.

Referenced by GRFConfig::GetDescription(), GetGRFStringFromGRFText(), GRFConfig::GetName(), and GRFConfig::GetURL().

◆ GetGRFStringFromGRFText() [2/2]

const char* GetGRFStringFromGRFText ( const GRFTextWrapper & text )

Get a C-string from a GRFText-list.

If there is a translation for the current language it is returned, otherwise the default translation is returned. If there is neither a default nor a translation for the current language nullptr is returned.

Parameters

text	The GRFTextList to get the string from.

Definition at line 631 of file newgrf_text.cpp.

References GetGRFStringFromGRFText().

◆ RemapNewGRFStringControlCode()

uint RemapNewGRFStringControlCode	(	uint	scc,
		const char **	str,
		StringParameters &	parameters,
		bool	modify_parameters
	)

FormatString for NewGRF specific "magic" string control codes.

Parameters

scc	the string control code that has been read
str	the string that we need to write
parameters	the OpenTTD string formatting parameters
modify_parameters	When true, modify the OpenTTD string formatting parameters.

Returns: the string control code to "execute" now

Definition at line 828 of file newgrf_text.cpp.

◆ RestoreTextRefStackBackup()

void RestoreTextRefStackBackup ( struct TextRefStack * backup )

Restore a copy of the text stack to the used stack.

Parameters

backup The copy to restore.

Definition at line 774 of file newgrf_text.cpp.

References _newgrf_textrefstack.

Referenced by FormatString().

◆ SetCurrentGrfLangID()

void SetCurrentGrfLangID ( uint8_t language_id )

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. This function is called after the user changed language, from strings.cpp:ReadLanguagePack

Parameters

language_id iso code of current selection

Definition at line 659 of file newgrf_text.cpp.

References _currentLangID.

◆ StartTextRefStackUsage()

void StartTextRefStackUsage	(	const GRFFile *	grffile,
		uint8_t	numEntries,
		const uint32_t *	values
	)

Start using the TTDP compatible string code parsing.

On start a number of values is copied on the TextRefStack. You can then use GetString() and the normal string drawing functions, and they will use the TextRefStack for NewGRF string codes.

However, when you want to draw a string multiple times using the same stack, you have to call #RewindTextRefStack() between draws.

After you are done with drawing, you must disable usage of the TextRefStack by calling StopTextRefStackUsage(), so NewGRF string codes operate on the normal string parameters again.

Parameters

grffile	the NewGRF providing the stack data
numEntries	number of entries to copy from the registers
values	values to copy onto the stack; if nullptr the temporary NewGRF registers will be used instead

Definition at line 798 of file newgrf_text.cpp.

◆ TranslateTTDPatchCodes()

std::string TranslateTTDPatchCodes	(	uint32_t	grfid,
		uint8_t	language_id,
		bool	allow_newlines,
		std::string_view	str,
		StringControlCode	byte80
	)

Translate TTDPatch string codes into something OpenTTD can handle (better).

Parameters

grfid	The (NewGRF) ID associated with this string
language_id	The (NewGRF) language ID associated with this string.
allow_newlines	Whether newlines are allowed in the string or not.
str	The string to translate.
byte80	The control code to use as replacement for the 0x80-value.

Returns: The translated string.

Definition at line 236 of file newgrf_text.cpp.

References NFO_UTF8_IDENTIFIER, Utf8Decode(), and Utf8EncodedCharLen().

Referenced by AddGRFTextToList().

◆ UsingNewGRFTextStack()

bool UsingNewGRFTextStack ( )

Check whether the NewGRF text stack is in use.

Returns: True iff the NewGRF text stack is used.

Definition at line 756 of file newgrf_text.cpp.

References _newgrf_textrefstack.

Referenced by FormatString().

Data Structures

Enumerations

Functions

Variables

Detailed Description

Enumeration Type Documentation

◆ GRFBaseLanguages

Function Documentation

◆ AddGRFTextToList() [1/4]

◆ AddGRFTextToList() [2/4]

◆ AddGRFTextToList() [3/4]

◆ AddGRFTextToList() [4/4]

◆ CleanUpStrings()

◆ CreateTextRefStackBackup()

◆ GetGRFStringFromGRFText() [1/2]

◆ GetGRFStringFromGRFText() [2/2]

◆ RemapNewGRFStringControlCode()

◆ RestoreTextRefStackBackup()

◆ SetCurrentGrfLangID()

◆ StartTextRefStackUsage()

◆ TranslateTTDPatchCodes()

◆ UsingNewGRFTextStack()