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2020-08-04 13:13:01 -04:00

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C++

//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//===========================================================================//
#ifndef TIER1_ILOCALIZE_H
#define TIER1_ILOCALIZE_H
#ifdef _WIN32
#pragma once
#endif
#include <tier1/KeyValues.h>
#include "appframework/IAppSystem.h"
// unicode character type
// for more unicode manipulation functions #include <wchar.h>
#if !defined(_WCHAR_T_DEFINED) && !defined(GNUC)
typedef unsigned short wchar_t;
#define _WCHAR_T_DEFINED
#endif
// direct references to localized strings
typedef unsigned long StringIndex_t;
const unsigned long INVALID_LOCALIZE_STRING_INDEX = (StringIndex_t)-1;
//-----------------------------------------------------------------------------
// Purpose: Handles localization of text
// looks up string names and returns the localized unicode
//text
//-----------------------------------------------------------------------------
abstract_class ILocalize {
public:
// adds the contents of a file to the localization table
virtual bool AddFile(const char *fileName, const char *pPathID = NULL,
bool bIncludeFallbackSearchPaths = false) = 0;
// Remove all strings from the table
virtual void RemoveAll() = 0;
// Finds the localized text for tokenName
virtual wchar_t *Find(char const *tokenName) = 0;
// finds the index of a token by token name, INVALID_STRING_INDEX if not
// found
virtual StringIndex_t FindIndex(const char *tokenName) = 0;
// gets the values by the string index
virtual const char *GetNameByIndex(StringIndex_t index) = 0;
virtual wchar_t *GetValueByIndex(StringIndex_t index) = 0;
///////////////////////////////////////////////////////////////////
// the following functions should only be used by localization editors
// iteration functions
virtual StringIndex_t GetFirstStringIndex() = 0;
// returns the next index, or INVALID_STRING_INDEX if no more strings
// available
virtual StringIndex_t GetNextStringIndex(StringIndex_t index) = 0;
// adds a single name/unicode string pair to the table
virtual void AddString(const char *tokenName, wchar_t *unicodeString,
const char *fileName) = 0;
// changes the value of a string
virtual void SetValueByIndex(StringIndex_t index, wchar_t * newValue) = 0;
// saves the entire contents of the token tree to the file
virtual bool SaveToFile(const char *fileName) = 0;
// iterates the filenames
virtual int GetLocalizationFileCount() = 0;
virtual const char *GetLocalizationFileName(int index) = 0;
// returns the name of the file the specified localized string is stored in
virtual const char *GetFileNameByIndex(StringIndex_t index) = 0;
// for development only, reloads localization files
virtual void ReloadLocalizationFiles() = 0;
virtual const char *FindAsUTF8(const char *pchTokenName) = 0;
// need to replace the existing ConstructString with this
virtual void ConstructString(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) wchar_t * unicodeOutput,
int unicodeBufferSizeInBytes, const char *tokenName,
KeyValues *localizationVariables) = 0;
virtual void ConstructString(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) wchar_t * unicodeOutput,
int unicodeBufferSizeInBytes, StringIndex_t unlocalizedTextSymbol,
KeyValues *localizationVariables) = 0;
///////////////////////////////////////////////////////////////////
// static interface
// converts an english string to unicode
// returns the number of wchar_t in resulting string, including null
// terminator
static int ConvertANSIToUnicode(const char *ansi,
OUT_Z_BYTECAP(unicodeBufferSizeInBytes)
wchar_t *unicode,
int unicodeBufferSizeInBytes);
// converts an unicode string to an english string
// unrepresentable characters are converted to system default
// returns the number of characters in resulting string, including null
// terminator
static int ConvertUnicodeToANSI(const wchar_t *unicode,
OUT_Z_BYTECAP(ansiBufferSize) char *ansi,
int ansiBufferSize);
// builds a localized formatted string
// uses the format strings first: %s1, %s2, ... unicode strings (wchar_t *)
template <typename T>
static void ConstructString(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) T * unicodeOuput,
int unicodeBufferSizeInBytes, const T *formatString,
int numFormatParameters, ...) {
va_list argList;
va_start(argList, numFormatParameters);
ConstructStringVArgsInternal(unicodeOuput, unicodeBufferSizeInBytes,
formatString, numFormatParameters,
argList);
va_end(argList);
}
template <typename T>
static void ConstructStringVArgs(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) T * unicodeOuput,
int unicodeBufferSizeInBytes, const T *formatString,
int numFormatParameters, va_list argList) {
ConstructStringVArgsInternal(unicodeOuput, unicodeBufferSizeInBytes,
formatString, numFormatParameters,
argList);
}
template <typename T>
static void ConstructString(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) T * unicodeOutput,
int unicodeBufferSizeInBytes, const T *formatString,
KeyValues *localizationVariables) {
ConstructStringKeyValuesInternal(unicodeOutput,
unicodeBufferSizeInBytes, formatString,
localizationVariables);
}
private:
// internal "interface"
static void ConstructStringVArgsInternal(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) char *unicodeOutput,
int unicodeBufferSizeInBytes, const char *formatString,
int numFormatParameters, va_list argList);
static void ConstructStringVArgsInternal(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) wchar_t * unicodeOutput,
int unicodeBufferSizeInBytes, const wchar_t *formatString,
int numFormatParameters, va_list argList);
static void ConstructStringKeyValuesInternal(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) char *unicodeOutput,
int unicodeBufferSizeInBytes, const char *formatString,
KeyValues *localizationVariables);
static void ConstructStringKeyValuesInternal(
OUT_Z_BYTECAP(unicodeBufferSizeInBytes) wchar_t * unicodeOutput,
int unicodeBufferSizeInBytes, const wchar_t *formatString,
KeyValues *localizationVariables);
};
#ifdef GC
typedef char locchar_t;
#define loc_snprintf Q_snprintf
#define loc_sprintf_safe V_sprintf_safe
#define loc_sncat Q_strncat
#define loc_scat_safe V_strcat_safe
#define loc_sncpy Q_strncpy
#define loc_scpy_safe V_strcpy_safe
#define loc_strlen Q_strlen
#define LOCCHAR(x) x
#else
typedef wchar_t locchar_t;
#define loc_snprintf V_snwprintf
#define loc_sprintf_safe V_swprintf_safe
#define loc_sncat V_wcsncat
#define loc_scat_safe V_wcscat_safe
#define loc_sncpy Q_wcsncpy
#define loc_scpy_safe V_wcscpy_safe
#define loc_strlen Q_wcslen
#define LOCCHAR(x) L##x
#endif
// --------------------------------------------------------------------------
// Purpose:
// --------------------------------------------------------------------------
template <typename T>
class TypedKeyValuesStringHelper {
public:
static const T *Read(KeyValues *pKeyValues, const char *pKeyName,
const T *pDefaultValue);
static void Write(KeyValues *pKeyValues, const char *pKeyName,
const T *pValue);
};
// --------------------------------------------------------------------------
template <>
class TypedKeyValuesStringHelper<char> {
public:
static const char *Read(KeyValues *pKeyValues, const char *pKeyName,
const char *pDefaultValue) {
return pKeyValues->GetString(pKeyName, pDefaultValue);
}
static void Write(KeyValues *pKeyValues, const char *pKeyName,
const char *pValue) {
pKeyValues->SetString(pKeyName, pValue);
}
};
// --------------------------------------------------------------------------
template <>
class TypedKeyValuesStringHelper<wchar_t> {
public:
static const wchar_t *Read(KeyValues *pKeyValues, const char *pKeyName,
const wchar_t *pDefaultValue) {
return pKeyValues->GetWString(pKeyName, pDefaultValue);
}
static void Write(KeyValues *pKeyValues, const char *pKeyName,
const wchar_t *pValue) {
pKeyValues->SetWString(pKeyName, pValue);
}
};
// --------------------------------------------------------------------------
// Purpose: CLocalizedStringArg<> is a class that will take a variable of any
// arbitary type and convert it to a string of whatever
//character type we're using for localization (locchar_t).
//
// Independently it isn't very useful, though it can be used to
//sort-of- intelligently fill out the correct format string. It's designed to be
// used for the arguments of CConstructLocalizedString, which
//can be of arbitrary number and type.
//
// If you pass in a (non-specialized) pointer, the code will
//assume that you meant that pointer to be used as a localized string. This will
// still fail to compile if some non-string type is passed in,
//but will handle weird combinations of const/volatile/whatever automatically.
// --------------------------------------------------------------------------
// The base implementation doesn't do anything except fail to compile if you
// use it. Getting an "incomplete type" error here means that you tried to
// construct a localized string with a type that doesn't have a specialization.
template <typename T>
class CLocalizedStringArg;
// --------------------------------------------------------------------------
template <typename T>
class CLocalizedStringArgStringImpl {
public:
enum { kIsValid = true };
CLocalizedStringArgStringImpl(const locchar_t *pStr) : m_pStr(pStr) {}
const locchar_t *GetLocArg() const {
Assert(m_pStr);
return m_pStr;
}
private:
const locchar_t *m_pStr;
};
// --------------------------------------------------------------------------
template <typename T>
class CLocalizedStringArg<T *> : public CLocalizedStringArgStringImpl<T> {
public:
CLocalizedStringArg(const locchar_t *pStr)
: CLocalizedStringArgStringImpl<T>(pStr) {}
};
// --------------------------------------------------------------------------
template <typename T>
class CLocalizedStringArgPrintfImpl {
public:
enum { kIsValid = true };
CLocalizedStringArgPrintfImpl(T value, const locchar_t *loc_Format) {
loc_snprintf(m_cBuffer, kBufferSize, loc_Format, value);
}
const locchar_t *GetLocArg() const { return m_cBuffer; }
private:
enum {
kBufferSize = 128,
};
locchar_t m_cBuffer[kBufferSize];
};
// --------------------------------------------------------------------------
template <>
class CLocalizedStringArg<uint16>
: public CLocalizedStringArgPrintfImpl<uint16> {
public:
CLocalizedStringArg(uint16 unValue)
: CLocalizedStringArgPrintfImpl<uint16>(unValue, LOCCHAR("%u")) {}
};
// --------------------------------------------------------------------------
template <>
class CLocalizedStringArg<uint32>
: public CLocalizedStringArgPrintfImpl<uint32> {
public:
CLocalizedStringArg(uint32 unValue)
: CLocalizedStringArgPrintfImpl<uint32>(unValue, LOCCHAR("%u")) {}
};
// --------------------------------------------------------------------------
template <>
class CLocalizedStringArg<uint64>
: public CLocalizedStringArgPrintfImpl<uint64> {
public:
CLocalizedStringArg(uint64 unValue)
: CLocalizedStringArgPrintfImpl<uint64>(unValue, LOCCHAR("%llu")) {}
};
// --------------------------------------------------------------------------
template <>
class CLocalizedStringArg<float> : public CLocalizedStringArgPrintfImpl<float> {
public:
// Display one decimal point if we've got a value less than one, and no
// point if we're greater than one or are effectively zero.
CLocalizedStringArg(float fValue)
: CLocalizedStringArgPrintfImpl<float>(
fValue, fabsf(fValue) <= FLT_EPSILON || fabsf(fValue) >= 1.0f
? LOCCHAR("%.0f")
: LOCCHAR("%.1f")) {
//
}
};
// --------------------------------------------------------------------------
// Purpose:
// --------------------------------------------------------------------------
class CConstructLocalizedString {
public:
template <typename T>
CConstructLocalizedString(const locchar_t *loc_Format, T arg0) {
COMPILE_TIME_ASSERT(CLocalizedStringArg<T>::kIsValid);
m_loc_Buffer[0] = '\0';
if (loc_Format) {
::ILocalize::ConstructString(
m_loc_Buffer, sizeof(m_loc_Buffer), loc_Format, 1,
CLocalizedStringArg<T>(arg0).GetLocArg());
}
}
template <typename T, typename U>
CConstructLocalizedString(const locchar_t *loc_Format, T arg0, U arg1) {
COMPILE_TIME_ASSERT(CLocalizedStringArg<T>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<U>::kIsValid);
m_loc_Buffer[0] = '\0';
if (loc_Format) {
::ILocalize::ConstructString(
m_loc_Buffer, sizeof(m_loc_Buffer), loc_Format, 2,
CLocalizedStringArg<T>(arg0).GetLocArg(),
CLocalizedStringArg<U>(arg1).GetLocArg());
}
}
template <typename T, typename U, typename V>
CConstructLocalizedString(const locchar_t *loc_Format, T arg0, U arg1,
V arg2) {
COMPILE_TIME_ASSERT(CLocalizedStringArg<T>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<U>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<V>::kIsValid);
m_loc_Buffer[0] = '\0';
if (loc_Format) {
::ILocalize::ConstructString(
m_loc_Buffer, sizeof(m_loc_Buffer), loc_Format, 3,
CLocalizedStringArg<T>(arg0).GetLocArg(),
CLocalizedStringArg<U>(arg1).GetLocArg(),
CLocalizedStringArg<V>(arg2).GetLocArg());
}
}
template <typename T, typename U, typename V, typename W>
CConstructLocalizedString(const locchar_t *loc_Format, T arg0, U arg1,
V arg2, W arg3) {
COMPILE_TIME_ASSERT(CLocalizedStringArg<T>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<U>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<V>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<W>::kIsValid);
m_loc_Buffer[0] = '\0';
if (loc_Format) {
::ILocalize::ConstructString(
m_loc_Buffer, sizeof(m_loc_Buffer), loc_Format, 4,
CLocalizedStringArg<T>(arg0).GetLocArg(),
CLocalizedStringArg<U>(arg1).GetLocArg(),
CLocalizedStringArg<V>(arg2).GetLocArg(),
CLocalizedStringArg<W>(arg3).GetLocArg());
}
}
template <typename T, typename U, typename V, typename W, typename X,
typename Y>
CConstructLocalizedString(const locchar_t *loc_Format, T arg0, U arg1,
V arg2, W arg3, X arg4, Y arg5) {
COMPILE_TIME_ASSERT(CLocalizedStringArg<T>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<U>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<V>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<W>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<X>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<Y>::kIsValid);
m_loc_Buffer[0] = '\0';
if (loc_Format) {
::ILocalize::ConstructString(
m_loc_Buffer, sizeof(m_loc_Buffer), loc_Format, 6,
CLocalizedStringArg<T>(arg0).GetLocArg(),
CLocalizedStringArg<U>(arg1).GetLocArg(),
CLocalizedStringArg<V>(arg2).GetLocArg(),
CLocalizedStringArg<W>(arg3).GetLocArg(),
CLocalizedStringArg<X>(arg4).GetLocArg(),
CLocalizedStringArg<Y>(arg5).GetLocArg());
}
}
template <typename T, typename U, typename V, typename W, typename X,
typename Y, typename Z>
CConstructLocalizedString(const locchar_t *loc_Format, T arg0, U arg1,
V arg2, W arg3, X arg4, Y arg5, Z arg6) {
COMPILE_TIME_ASSERT(CLocalizedStringArg<T>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<U>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<V>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<W>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<X>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<Y>::kIsValid);
COMPILE_TIME_ASSERT(CLocalizedStringArg<Z>::kIsValid);
m_loc_Buffer[0] = '\0';
if (loc_Format) {
::ILocalize::ConstructString(
m_loc_Buffer, sizeof(m_loc_Buffer), loc_Format, 7,
CLocalizedStringArg<T>(arg0).GetLocArg(),
CLocalizedStringArg<U>(arg1).GetLocArg(),
CLocalizedStringArg<V>(arg2).GetLocArg(),
CLocalizedStringArg<W>(arg3).GetLocArg(),
CLocalizedStringArg<X>(arg4).GetLocArg(),
CLocalizedStringArg<Y>(arg5).GetLocArg(),
CLocalizedStringArg<Z>(arg6).GetLocArg());
}
}
CConstructLocalizedString(const locchar_t *loc_Format,
KeyValues *pKeyValues) {
m_loc_Buffer[0] = '\0';
if (loc_Format && pKeyValues) {
::ILocalize::ConstructString(m_loc_Buffer, sizeof(m_loc_Buffer),
loc_Format, pKeyValues);
}
}
operator const locchar_t *() const { return m_loc_Buffer; }
private:
enum {
kBufferSize = 512,
};
locchar_t m_loc_Buffer[kBufferSize];
};
#endif // TIER1_ILOCALIZE_H