Internat.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  Internat.h
 
  Markus Meyer
  Dominic Mazzoni (Mac OS X code)
 
**********************************************************************/
 
#ifndef __AUDACITY_INTERNAT__
#define __AUDACITY_INTERNAT__
 
 
 
#include <wx/longlong.h>
 
#include "audacity/Types.h"
 
class wxArrayString;
class wxArrayStringEx;
 
extern AUDACITY_DLL_API const wxString& GetCustomTranslation(const wxString& str1 );
extern AUDACITY_DLL_API const wxString& GetCustomSubstitution(const wxString& str1 );
 
// Marks string for substitution only.
#define _TS( s ) GetCustomSubstitution( s )
 
// Marks strings for extraction only... use .Translate() to translate.
// '&', preceding menu accelerators, should NOT occur in the argument.
#define XO(s)  (TranslatableString{ wxT(s), {} })
 
// Alternative taking a second context argument.  A context is a string literal,
// which is not translated, but serves to disambiguate uses of the first string
// that might need differing translations, such as "Light" meaning not-heavy in
// one place but not-dark elsewhere.
#define XC(s, c)  (TranslatableString{ wxT(s), {} }.Context(c))
 
// Marks strings for extraction only, where '&', preceding menu accelerators, MAY
// occur.
// For now, expands exactly as macro XO does, but in future there will be a
// type distinction - for example XXO should be used for menu item names that
// might use the & character for shortcuts.
#define XXO(s)  XO(s)
 
// Corresponds to XC as XXO does to XO
#define XXC(s, c) XC(s, c)
 
#ifdef _
   #undef _
#endif
 
#if defined( _DEBUG )
   // Force a crash if you misuse _ in a static initializer, so that translation
   // is looked up too early and not found.
 
   #ifdef __WXMSW__
 
   // Eventually pulls in <windows.h> which indirectly defines DebugBreak(). Can't
   // include <windows.h> directly since it then causes "MemoryX.h" to spew errors.
   #include <wx/app.h>
   #define _(s) ((wxTranslations::Get() || (DebugBreak(), true)), \
                GetCustomTranslation((s)))
 
   #else
 
   #include <signal.h>
   // Raise a signal because it's even too early to use wxASSERT for this.
   #define _(s) ((wxTranslations::Get() || raise(SIGTRAP)), \
                GetCustomTranslation((s)))
 
   #endif
 
#else
   #define _(s) GetCustomTranslation((s))
#endif
 
#ifdef XP
   #undef XP
#endif
 
 
// The two string arguments will go to the .pot file, as
// msgid sing
// msgid_plural plural
//
// (You must use plain string literals.  Do not use _() or wxT() or L prefix,
//  which (intentionally) will fail to compile.  The macro inserts wxT).
//
// Note too:  The i18n-hint comment must be on the line preceding the first
// string.  That might be inside the parentheses of the macro call.
//
// The macro call is then followed by a sequence of format arguments in
// parentheses.  The third argument of the macro call is the zero-based index
// of the format argument that selects singular or plural
#define XP(sing, plur, n) \
   TranslatableString{ wxT(sing), {} }.Plural<(n)>( wxT(plur) )
 
// Like XP but with an additional context argument, as for XC
#define XPC(sing, plur, n, c) \
   TranslatableString{ wxT(sing), {} }.Context(c).Plural<(n)>( wxT(plur) )
 
class AUDACITY_DLL_API Internat
{
public:
   static void Init();
 
   static wxChar GetDecimalSeparator();
   static void SetCeeNumberFormat();
 
   static bool CompatibleToDouble(const wxString& stringToConvert, double* result);
 
   // Function version of above.
   static double CompatibleToDouble(const wxString& stringToConvert);
 
   static wxString ToString(double numberToConvert,
                     int digitsAfterDecimalPoint = -1);
 
   static wxString ToDisplayString(double numberToConvert,
                     int digitsAfterDecimalPoint = -1);
 
   static TranslatableString FormatSize(wxLongLong size);
   static TranslatableString FormatSize(double size);
 
   static bool SanitiseFilename(wxString &name, const wxString &sub);
 
   static const wxArrayString &GetExcludedCharacters()
   { return exclude; }
 
private:
   static wxChar mDecimalSeparator;
 
   static wxArrayString exclude;
};
 
// Convert C strings to wxString
#define UTF8CTOWX(X) wxString((X), wxConvUTF8)
#define LAT1CTOWX(X) wxString((X), wxConvISO8859_1)
 
class ComponentInterfaceSymbol;
AUDACITY_DLL_API TranslatableStrings Msgids(
   const EnumValueSymbol strings[], size_t nStrings);
AUDACITY_DLL_API TranslatableStrings Msgids( const std::vector<EnumValueSymbol> &strings );
 
// Whether disambiguationg contexts are supported
// If not, then the program builds and runs, but strings in the catalog with
// contexts will fail to translate
#define HAS_I18N_CONTEXTS wxCHECK_VERSION(3, 1, 1)
 
#endif